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Results in Journal Journal of Environmental Engineering and Waste Management: 40

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Rizka Dwi Apriliani
Journal of Environmental Engineering & Waste Management, Volume 5, pp 72-85; https://doi.org/10.33021/jenv.v5i1.988

Abstract:
PT. Jababeka Infrastruktur is a subsidiary company of PT. Jababeka Tbk., as estate manager. One of the PT. Jababeka Infrastruktur duty is manage Wastewater Treatment Plant 2 (WWTP2). The most of incoming wastewater in WWTP2 PT. Jababeka Infrastruktur is came from food industries, whereas has potential degradable to fatty acid and caused the pH tend to be low and fluctuates. pH is one of the important parameters, especially in biological wastewater treatment system as applied in WWTP2. pH value can affect the microorganism performance in decompose the pollutant compound in wastewater. pH control action is needed to make the treatment run better. Objectives: To know the primary settling tank (PST) with ̴3 hours detention time performance in equalizing wastewater pH. To develop the new equalization tank, it was provide an analysis the pH inlet performance by measuring pH of wastewater. Method and results: Statistical analysis of secondary data by comparing standard deviation value of wastewater before and after accommodated in PST also paired sample t-Test to see the performance of PST in equalizing of pH. Besides that, taken and measuring inlet wastewater pH in every one hour also adding to the previous wastewater inlet sample to determine the optimum wastewater detention time in terms of pH. Conclusion: PST was significant unit process that can be equalize the pH value. The observation of pH characteristic pattern by time showed that the optimum equalization time was 1-2 hours. This result can be as reference to more utilize of the existing PST.
Julio Putra David, Rijal Hakiki
Journal of Environmental Engineering & Waste Management, Volume 6, pp 27-37; https://doi.org/10.33021/jenv.v6i1.1416

Abstract:
COD level indicates the organic matter pollution in water. A predictive analysis, such as Multiple Linear Regression, could be an option to make the COD measurement more effective. Objectives:This research aims to determine the parameter that can predict COD concentration using correlation analysis and develop a Multiple Linear Regression Model for predictive analysis on COD level in the West Tarum Canal surface water. Method and results: The correlation analysis is done in Microsoft Excel using the Pearson Product Moment Correlation Analysis. The water quality dataset is inputted to the R Studio and made the MLR model. The model is validated using t-Test. The result showed that all models in all intake points are not showing good prediction results, and the predictors showed no effect on the COD level. Conclusion: The Multiple Linear Regression is not a fit tool for predicting the COD in the West Tarum Canal surface water. Abstract[rh1] . COD level indicates the organic matter pollution in water. A predictive analysis, such as Multiple Linear Regression, could be an option to make the COD measurement more effective. Objectives[rh2] :This research aims to determine the parameter that can predict COD concentration using correlation analysis and develop a Multiple Linear Regression Model for predictive analysis on COD level in the West Tarum Canal surface water. Method and results[rh3] : The correlation analysis is done in Microsoft Excel using the Pearson Product Moment Correlation Analysis. The water quality dataset is inputted to the R Studio and made the MLR model. The model is validated using t-Test. The result showed that all models in all intake points are not showing good prediction results, and the predictors showed no effect on the COD level. Conclusion[rh4] : The Multiple Linear Regression is not a fit tool for predicting the COD in the West Tarum Canal surface water.
Temmy Wikaningrum, Rijal Hakiki
Journal of Environmental Engineering & Waste Management, Volume 5, pp 15-29; https://doi.org/10.33021/jenv.v5i1.969

Abstract:
The oxidation process as the activated sludge (AS) system has been implemented widely in urban and industrial wastewater treatment. Oxidation ditch can be categorized as an advanced aeration activated sludge. Integrated Fix-Film Activated Sludge (IFAS) process has been already developed for decades that was a reasonable approach for technology to upgrade the activated sludge wastewater treatment plant (WWTP). IFAS processes are a combination of biofilm reactors and activated sludge processes, biofilm is introducing and retaining as the carrier media for microorganism growth. Both IFAS and AS processes can achieve similar percent removal of COD and ammonia. Current WWTP’s development was food chain reactor (FCR) which mainly IFAS process of engineered media that combining with natural plants with the plant roots submerging into the reactors. The references review and secondary data of the application in Jababeka’s WWTP-2 for both AS and FCR system showed that FCR is needless parameters to be controlled. In both AS and FCR have KPIs of flow rate (m3/day), F/M ratio, energy consumption (kWh/m3 wastewater), Oxygen supply (kgO2 / m3 wastewater in each reactor, % removal of COD, BOD, TSS, NH3, TKN, NO2, and heavy metals, and pH, Dissolved Oxygen, microorganism performance in the reactor. Different from AS, the FCR system is not required to control the parameters of sludge retention time (SRT), recirculated activated sludge (RAS), sludge volume index (SVI), and mixed liquor suspended solids (MLSS)of activated sludge.
Ni Iluh Permata Ariase, Temmy Wikaningrum
Journal of Environmental Engineering & Waste Management, Volume 6, pp 58-70; https://doi.org/10.33021/jenv.v6i1.1422

Abstract:
The population increase until the end of 2019 reached 267 million. This is in line with developments that support activities. This is inseparable from the actions of one of the precast concrete companies PT.WB Precast Plant Karawang in supporting development that produces waste in the form of wastewater. The parameter measured as a reference in carrying out processing is the Minister of Health Regulation Number 32 of 2017. This study's method refers to turbidity as a physical parameter, namely 25NTU and hardness total as a chemical parameter, which is 500 mg / l. CaCO3. Objectives: The purpose of this study was to determine the optimization of the use of PAC as a coagulant and flocculant to reduce the turbidity and total hardness and determine the optimum detention time of flocculation. Method and results: The sampling method in this study is observation. The population in this study is concrete wastewater with parameter values that are not in accordance with the standard. Conclusion: By using PAC 10% the optimum doses is 140 ppm, and the optimum detention time of flocculation is 5 minute that can reduce the turbidity from 275 NTU to be 11.615 NTU or 95.7% and can reduce total hardness from 948.75 mg/l CaCO3 to be 491.25 mg/l CaCO3 or 48.2%.
Filson Maratur Sidjabat, Rijal Hakiki, Temmy Wikaningrum
Journal of Environmental Engineering & Waste Management, Volume 4, pp 50-58; https://doi.org/10.33021/jenv.v4i2.783

Abstract:
Ambient Air Quality Monitoring (AAQM) must be conducted by Industrial Estate Management, according to legislation and regulation in EIA (Environmental Impact Assessment) Report. AAQ test parameter are Sulfur Dioxide (SO2), Carbon Monoxide (CO), Nitrogen Dioxide (NO2), Ozon (O3), Hidrocarbon (HC), PM10, PM2,5, Total Suspended Solid (TSP), and Lead (Pb). Industrial Estate Management has an extensive role in AAQM, analysing and organizing better environmental policies. The data of Jababeka Industrial Estate (JIE) AAQM was seized from EIA Report each semester from year 2015 to 2018 and analyzed using openair model. A review of AAQM and Management in other industrial estate was done as a lesson-learned and insight to improve the AAQM System in JIE. Openair model can analyze the AAQ data with meteorological data around the sampling point area, and visualize it through the pollution rose function. The limited data of AAQM and weather, will limitate the result and analysis. The future research must aims to make a real-time/continuous AAQM and meteorological data to get more accurate and comprehensive data modeling and analysis.
Riri Asyahira Sariati Syah, Rijal Hakiki
Journal of Environmental Engineering & Waste Management, Volume 6, pp 90-110; https://doi.org/10.33021/jenv.v6i2.1475

Abstract:
Intensive water quality determination needs to be adjusted with technological developments to meet today's society's needs and increased water pollution due to urbanization. Therefore, early detection is essential for in site water quality determination and as a critical consideration in making health and environmental decisions. OpenCV is a library programming feature for Computer Vision which focuses on extracting information from images in real-time, this can be considered to be potential to measure the pollutant concentration. Objectives: This study identify the potential of colorimetry analysis method by using OpenCV as an alternative method for pollutant concentration measurement. Method and results: First stage, this study collecting the data of NH3 phenate and Pt-Co CU from the spectrophotometer. The first stage also was including the development of an OpenCV code. Then, the data was collected were processed to get the concentration of NH3 and Pt-Co both using OpenCV and spectrophotometer; factors that influence the Pt-Co sample image measurement process by using OpenCV-Python was analyzed too. Then in the analysis stage, the result of the two measurement method was tested by statistic determine its significant difference. The conclusion found whether OpenCV could be potential to measure the pollutant concentration or not. Conclusion: the OpenCV has potential to be use as alternative colorimetry measurement method to determine water pollutant as there is no significant difference in the spectrophotometric method results and the results from OpenCV for Pt-Co sample. Meanwhile, in this study found that the result of NH3 from spectrophotometer is nonlinear different with from OpenCV that is linear. Thus, further research is needed to test the validity of OpenCV method. The factor influence of measurement using OpenCV code is when determining the Region of Interest (ROI) and determining the pixel values for the normalized box filter
Apik Adzani Diandi, Eka Wardhani, Agung Ghani Kramawijaya
Journal of Environmental Engineering & Waste Management, Volume 4, pp 68-77; https://doi.org/10.33021/jenv.v4i2.718

Abstract:
Administratively, Giriasih Rusunawa located at Jalan Griya Asri Permai, Kampung Babakan RT 01 and 02 RW 18 Kampung Babakan, Giriasih Village, Batujajar Sub-District, West Bandung Regency, is in a difficult area for clean water. This study aims to determine the alternative sources of raw water that will be used to meet water needs in Rusunawa. Alternative raw water sources, namely groundwater, surface and rain. The method used by comparing water quality with quality standards. The parameters tested consisted of physical, chemical, and microbiological parameters. The quality monitored is compared to the quality standard based on Government Regulation Number 82 of 2001 Class I concerning Management of Water Quality and Water Pollution Control and PerMenKes No. 492 of 2010 concerning Drinking Water Quality Requirements. Based on the results of analysis of raw water sources, surface water is very possible to be used as a source of water to meet the needs of water in flat from all aspects. Quantity aspect, Saguling Reservoir guarantees continuous availability of raw water, which is 4,000 l / sec and can still be developed up to 5,000 l / sec. Parameters that do not meet quality standards on surface water are: BOD, COD, Phosphate and Manganese. Based on the results of the calculation of water requirements of 3 l / sec to serve the water needs in the flat.
Kezia Kusumaningtyas, Yunita Ismail
Journal of Environmental Engineering & Waste Management, Volume 5, pp 136-155; https://doi.org/10.33021/jenv.v5i2.1234

Abstract:
Due to the data in 2030, the urban growth in developed countries is 83% and developing countries is 53%. Jababeka II Industrial Estate as one of the urban industrialization located at Bekasi Regency. In its development, drainage facilities are one thing that must be considered. Because with its function as a channel that carries runoff water to rivers/lakes/reservoirs to avoid flooding. This study aimed to know the existing condition of the drainage system and the water balances in the form of runoff in Jababeka II Industrial Estate by the simulation of SWMM 5.1. The method of this research used a quantitative method, and the data collection method used secondary data, including the information from the existing drainage system with precipitation events in 12 years (2009-2020) were obtained from the WTP Jababeka Residential, drainage dimension, and masterplan of Jababeka II. In order to calculate rainfall planned used fifth-year return period based, it’s on the city's classification under study. The probability distribution method uses Log-Pearson III with a planned rainfall of 128.22 mm/d and the highest rainfall intensity of 54 mm. Based on the simulation results, it was found that the Jababeka II Industrial Estate contained puddles in several channels. The peak was at the 3rd hour of the simulation, which were 19 channels. It's influenced by the type of soil that is quickly saturated. The simulation of the existing condition at Jababeka II has the highest runoff at the 2nd hour of simulation, and floods occurred in 19 channels. It’s affected by the impermeable sub-areas. The water balance result is the amount of precipitation 128.22 mm with the intensity is 54mm due to 5 years forecasting, thus producing the outflow is 128.511 mm. Therefore the number of continuity errors of the surface is -0.227%.
Aidah Maqbulah Al-Hadi, Yunita Ismail Masjud
Journal of Environmental Engineering & Waste Management, Volume 6, pp 71-89; https://doi.org/10.33021/jenv.v6i2.1451

Abstract:
Inadequate processing of waste in household areas has resulted in many people throwing the waste anywhere. Waste generation can be minimized by using the composting method. There are many methods of composting organic waste; one of them is the Tong Composter. Tong Composter is a composting method which in the process uses an EM4 bio-activator. Objectives: This research objective is to determine whether the liquid organic fertilizer parameters produced comply with the standard of Ministerial Decree of Agriculture No. 261 of 2019. Method and results: This research using the experimental method with two treatments, EM4 dosage (60 ml and 70 ml) and fermentation time (10 days and 20 days). A dose of EM4 in treatment 1 is 60 ml, and treatment 2 is 70 ml; each treatment was analyzed on the 10th day. For treatment 3 and 4, a dose of EM4 in treatment 3 is 60 ml, and in treatment 4 is 70 ml; each treatment was analyzed on the 20th day. Then from the liquid organic fertilizer produced, several parameters were analyzed at PT. Sucofindo Cibitung, such as Nitrogen, P2O5, and K2O parameter. Meanwhile, the pH will be measured in the Environmental Engineering Laboratory of President University. The laboratory experiment results from pH, Nitrogen, P­2O5, and K2O will be tested using the t-test. With the hypothesis (HO: µ sample ≥ minimum value of macro-nutrient and pH parameter from Ministerial Decree of Agriculture of the Republic of Indonesia Number 261 of 2019). According to the t-test result, the null hypothesis is rejected because Nitrogen, P2O5, and K2O in all parameters are less than 2%. The null hypothesis is accepted for pH because in all parameters is higher than or equal to 4. Conclusion: The t-test result showed that only the pH was complied with the standard, while the Nitrogen, P­2O5, and K2O parameters have not complied with the standard of Ministerial Decree of Agriculture No. 261 of 2019.
Luthfi Fahreza, Melati Ferianita Fachrul, Asih Wijayanti
Journal of Environmental Engineering & Waste Management, Volume 4, pp 78-84; https://doi.org/10.33021/jenv.v4i2.768

Abstract:
The purpose of this research is to study the challenges thar exist in the Minangkabau International Airport, Padang Pariaman, West Sumatera and surrounding settlements. Find out how to fly at aiports. The primary data collection method is carried out using a Sound Level Meter, to measure aircraft compability when taking off and landing at 16 points in April – May 2018. The measurement point is determined based on ICAO (International Civil Aviation Organization) The results of the study show the facts above. Point 4 with a distance of 1000 meters from the end of the runway and has an intensity of 97.9 dB(A) and point 5 as far 2000 meters located at the airport which has a resolution level of 89.5 dB(A), according to Minister of Transportation Decree No. 48/2002 Point 4, a distance of 1000 meters from noise sources is included in the level III area. Based on the results obtained from the highest level in the regional area produced by Boeing 737-800 aircraft at 97.9 dB(A) and lower flying intensity at Point 3 at 61.7 dB (A. Suggestions given about others need to be improved with further assistance, special agreements were made on how to create a barrier or building installation damper such as planting more trees attached to the wall.
Nissa Putri Ramadhan, Melati Ferianita Fachrul, Widyatmoko Widyatmoko
Journal of Environmental Engineering & Waste Management, Volume 4, pp 43-49; https://doi.org/10.33021/jenv.v4i2.767

Abstract:
This research was conducted to determine the Husein Sastranegara International Airport Noise Area in Bandung with the Weighted Equivalent Continuous Perceived Noise Level (WECPNL) method. There are 12 measurement points determined based on the International Civil Aviation Organization (ICAO) at a distance of 650 m parallel to the runway, and 1000 m, 2000 m, 3000 m and 4000 m from the end of the runway. Noise intensity measurements using the Environment Meter CEM DT-8820, tripod and GPS. Data analysis was done in the study using the Weighted Equivalent Continuous Perceived Noise Level (WECPNL) method. Based on Government Regulation No. 40 of 2012 concerning the Development of Environmental Conservation in the Airport it is known that the location in the Noise Zone Level 1 is 70 £ WECPNL < 75, the Noise Zone Level 2 is 75 £ WECPNL < 80 and the Noise Zone Level 3 is WECPNL ³ 80. In the Noise Zone Level 3 there are school buildings, offices, parks and residential areas. At Noise Level 1 there are school buildings, parks and residential areas. The results of the study concluded that the highest WECPNL index value is on the runway 650 m WECPNL index value of 72,6, 1000 m distance of WECPNL index value of 68,7, 2000 m distance of WECPNL index value of 66,7, distance of 3000 m value the WECPNL index is 66,5 and the distance of 4000 m the value of the WECPNL index is 66,6. The WECPNL index results at Bandung Husein Sastranegara International Airport have a Level 3 Noise Zone and a Noise Level 1 Area which have school buildings and settlements that should not be all owed. Therefore, it is necessary to apply the concept of sound suppression in the form of planting trees and usage of building materials.
Gilbert Givano, Yunita Ismail
Journal of Environmental Engineering & Waste Management, Volume 5, pp 54-71; https://doi.org/10.33021/jenv.v5i1.962

Abstract:
Waste generation in recent years has been increasing. The main problem is in the lack of environmental awareness. Awareness can be influenced by behavior, knowledge and income. This research wants to find out whether these 3 factors have an influence to the awareness of housewives who manage their household waste that live in residential area partially and fully. Questionnaires using likert scale that have undergone validity and reliability test were distributed online using Google Form to 100 housewives. Data were analyzed using descriptive analysis and Multiple Linear Regression. Results showed that behavior and knowledge have positive significant influence toward awareness while income has no significance towards awareness on the respondents.
Solikhah R
Journal of Environmental Engineering & Waste Management, Volume 6, pp 129-144; https://doi.org/10.33021/jenv.v6i2.1517

Abstract:
Abstract. Organic waste processing that has not received more attention and awareness has made the generation of organic waste higher in landfills. One of the ways that can be done to reduce waste generation from the source is by composting. The composer is a simple tool that can be used to compost anaerobically with the help of an EM4 activator to speed up the composting process. Objectives: The purpose of this study was to determine whether the parameters of the liquid organic fertilizer produced had met the standards of the Minister of Agriculture Regulation Number 261 of 2019. Method and results: This study used an experimental method with one treatment, namely fermentation time, 14 days and 20 days. The EM4 dose used for all samples was 60 ml per composter. before use EM4 is activated first by providing a food source in the form of a molasses solution of about 600 ml. Sampling was carried out on the 14th and 20th days, then taken to the Sucofindo Cibitung Laboratory to test the Nitrogen, P2O5, and K2O parameters. Based on hypothesis testing with t test, the content of Nitrogen, P2O5, and K2O were not complied with the standard from Decree of the Minister of Agriculture of the Republic of Indonesia Number 261 of 2019. Conclusion: The parameter of Nitrogen,P2O5 and K2O of organic fertilizer produced does not comply with the starndard of Ministerial Decree of Agriculture No. 216 of 2019.
Putri Annisa Febrian,
Journal of Environmental Engineering & Waste Management, Volume 6, pp 111-128; https://doi.org/10.33021/jenv.v6i2.1512

Abstract:
Nowadays, coffee is one of needs among metropolitan people. This lifestyle impact to increasing waste along coffee production, one of them is coffee ground. Coffee ground has toxic properties to the environment such as caffeine, tannins, and polyphenols. While other chemicals contain on coffee ground are 2.28% nitrogen, 0.06% phosphorus, 0.6% potassium, which means has a good impact to the soil. In existing condition, coffee grNowadays, coffee is one of needs among metropolitan people. This lifestyle impact to increasing waste along coffee production, one of them is coffee ground. Coffee ground has toxic properties to the environment such as caffeine, tannins, and polyphenols. While other chemicals contain on coffee ground are 2.28% nitrogen, 0.06% phosphorus, 0.6% potassium, which means has a good impact to the soil. In existing condition, coffee ground is commonly used to, biodiesel and bioethanol or by direct used to the soil. The processing of coffee ground to be liquid organic fertilizer by using bio-activator are considered to substitute the direct used, it will improve the quality of soil. Objectives: The objective of this research is to study of liquid fertilizer from coffee ground, whether comply or not to the standard regulation Ministerial Decree of Agriculture of the Republic of Indonesia Number 261/2019. Method and results: This research use a coffee ground from arabica and robusta coffee and applied 2(two) different dilution by repeated 2x2 on one time by using EM4 as bio-activator. The pH and temperature for 4 experiment measured daily and has an average on 4.8 and 31-degree celcius for 10 days. Nitrogen, Phosphorus, and phosphor measured in the end of experiment has average results on 0.18, 0.17, 0.04, sequentially. Conclusion: The result for chemical parameter; Nitrogen, Phosphorus, and phosphor has not comply to the standard of liquid organic fertilizer by Indonesia Government.ound is commonly used to, biodiesel and bioethanol or by direct used to the soil. The processing of coffee ground to be liquid organic fertilizer by using bio-activator are considered to substitute the direct used, it will improve the quality of soil. Objectives: The objective of this research is to study of liquid fertilizer from coffee ground, whether comply or not to the standard regulation Ministerial Decree of Agriculture of the Republic of Indonesia Number 261/2019. Method and results: This research use a coffee ground from arabica and robusta coffee and applied 2(two) different dilution by repeated 2x2 on one time by using EM4 as bio-activator. The pH and temperature for 4 experiment measured daily and has an average on 4.8 and 31-degree celcius for 10 days. Nitrogen, Phosphorus, and phosphor measured in the end of experiment has average results on 0.18, 0.17, 0.04, sequentially. Conclusion: The result for chemical parameter; Nitrogen, Phosphorus, and phosphor has not comply to the standard of liquid organic fertilizer by Indonesia Government.
Fifi Indriyani, Filson M. Sidjabat
Journal of Environmental Engineering & Waste Management, Volume 5, pp 86-100; https://doi.org/10.33021/jenv.v5i2.1054

Abstract:
Waste is an environmental problem that is the concern of everyone, increasing the volume of waste every year produced from the source. President University is one of the source that is still use the old paradigm in waste management makes President University continues to be one source that can increase the volume of waste that will be disposed of to landfill. This is reinforced by the increasing number of students each year. Therefore, as a role model from education level, proper waste management is needed. Objectives: Based on that, the objective of this research is to describe the existing condition of waste management at President University and to measure the waste generation and waste composition as baseline data for amount of dustbin and temporary waste collection area needed. Method and results: The Method implemented in this research using SNI 19-3964-1994 standard. The result showed that the total of waste generation at President University reached 238 gr/day/person with a total of 14% compostable waste, 31% recyclable waste, and 55% residue. Conclusion: It was suggested to plan and operate dustbin that following its types with the color-coded for different types of waste generation in President University. Also, recommend some alternative treatment ideas such as composting or anaerobic digester for treatment the waste.
Devi Roza K. Kausar, Reny Andriyanty, Haswan Yunaz
Journal of Environmental Engineering & Waste Management, Volume 5, pp 30-53; https://doi.org/10.33021/jenv.v5i1.992

Abstract:
This research was conducted to combine the potential ecological conditions with the business model of Taman Nasional Gunung Gede Pangrango (TNGGP). Objectives: The goal of this research is to recomend the ecotourism bussiness strategy that combines with principles of sustainable development in the TNGGP. The research design was descriptive and analyzed by SWOT analysis. The recomended business strategies are strictly guardhouse supervision, for climbers are not allowed to cut, burn, move ar damage the natural beauty of TNGGP enviroment, vandalism and littering prohibited, camp in predetermined place and oriented the visitor how do ecotourism properly and correctly. The strategy can be applied with maximize the efforts to prevent the natural ecology and aesthetics damage, reduce water pollution around TNGGP, improve visitor behavior and their awareness not to damage the TNGGP area, enhance the role of communities around TNGGP in order to improve community welfare.
Rahma Dewi Ayu Cahyandari, Hernani Yulinawati, Mm. Sintorini Moerdjoko
Journal of Environmental Engineering & Waste Management, Volume 4, pp 59-67; https://doi.org/10.33021/jenv.v4i2.770

Abstract:
This study aims to analyze the noise level in the Buaran 01 Elementary School and compare it with the standard noise level, and analyze the relationship of traffic to the disturbance of the school community. Data were collected for 2 weeks at 8 sampling points in the elemtary school area and 1 sampling point on the roadside with a sound level meter. Measurement and data processing methods are in accordance with KepMenLH No.48 of 1996. The results showed the relationship between the number of vehicles and the types of vehicles that passed by is 76.3 dB (A) with the noise level at 01 Buaran Elementary School of 74.6 dB (A). The environment noise level in the elementary school has exceeded the 55 dB (A) from noise level standard for the education area. The correlation between noise level and vehicle equivalent are 4.19% to 54.73% which shows that the noise level can also be influenced by the number of vehicles that passed. As many as 59% of respondents feel disturbed by the noise that occurs. The control efforts that can be done include making barriers in the form of plants, using sound dampening in the room, using door closer to doors and windows, avoiding doors with curved motives, and installing weather stripping in each window so that noises do not enter the window.
Lintang Meida Sofia, Fiya Fauha Umaima, Bruno Rumyaru
Journal of Environmental Engineering & Waste Management, Volume 6, pp 14-26; https://doi.org/10.33021/jenv.v6i1.1344

Abstract:
An important reason for the rise of the paperless learning environment is that society is moving towards a green direction. At the same time, the advancement of technology and how people’s consumption of scarce resources affects digital generation and the understanding of the environment in the future have attracted more and more attention. The objective of this study is to investigate how capable, and available the students are at implementing paperless classrooms with substitutes such as the digital mode in learning activities. This quantitative descriptive research uses 108 participants as a sample through a questionnaire to collect the data. The student from Computer Network Engineering major is considered as the most suitable and related to one of the variables, namely digital literacy, where students more often use technology as learning media and solutions for reducing paper usage. The data were analysed using SPSS v 22. The results of this study found that there are significant influences from Environmental Awareness, digital literacy, and habits as factors in students’ readiness to apply this concept. The coefficient of determination shows that the Environmental Awareness (X1), Digital Literacy (X2), and Habit (X3) effected the Student’s Readiness (Y) to Implement Paperless Concept of 41.3%. The rest, 58.7% will be explained by other factors that will not be discussed in this study.
Thalia De-Fatima Salsinha Soares
Journal of Environmental Engineering & Waste Management, Volume 6, pp 38-57; https://doi.org/10.33021/jenv.v6i1.1430

Abstract:
In Timor-Leste, supplying clean water is the responsibility of Serviço de Água e Saneamento (SAS). The study area is in Zone I, locates in Comoro, Dili. The service area uses groundwater as the water source with two types of reservoirs; rectangular and cylinder. Objectives: This study aims to evaluate the existing condition of the water distribution network (WDN) in Zone I by using the Epanet 2.0 software. The development of the WDN begins with projecting the population with 10-year planning using the Geometric, Arithmetic, and Exponential methods. Method and results: The collection data is through observations in the study area as primary data. Secondary data is collecting SAS data, such as the map of water pipelines, piping data, pump data, reservoir data, and consumers' numbers. Processing data is the use of MS. Excel to calculate the population size, water demand, and identifying the pipelines of Zone I through QGIS. Followed by Epanet 2.0, with WDN data, the result is then evaluated with the Regulation of the Minister of Public Works No. 18 Year 2007 (No.18/PRT/M/2007). Conclusion: The results show that the WDN in Zone I have met the pressure requirement from No.18/PRT/M/2007 with an average flow of 19.57 litres/second. However, velocity still needs improvements since it did not meet the criteria; it suggests adding pump stations and reservoirs where the velocity did not meet the criteria. For the projection year in 2030, the estimated population is 26,057, with an average daily total water requirement of 48.46 litres/second.
Yemima Marnalita Hasibuan, Filson Maratur Sidjabat
Journal of Environmental Engineering & Waste Management, Volume 6, pp 1-13; https://doi.org/10.33021/jenv.v5i2.1276

Abstract:
Waste is one of the big problems often faced by metropolitan cities like DKI Jakarta. The Jakarta Environment Agency's research stated that DKI Jakarta produces 7500-tons of waste per day with 60.5% coming from residential. Therefore, the DKI Jakarta government initiated the Sampah Tanggung Jawab Bersama (SAMTAMA) to mobilize residential people to manage waste from its source at certain locations as a pilot, one of locations is RT 10 / RW 03 Cempaka Putih Timur. RT 10 / RW 03 Cempaka Putih Timur is the RT that is considered optimal in implement the SAMTAMA program. Based on this, the objectives of this study are: (1) to find the existing condition of SAMTAMA program; (2) to measure the waste generation, composition, and reduction potential in the implementation of SAMTAMA program. The method implemented in measuring using SNI 19-3964-1994 which is carried out for 8 consecutive days. Waste composition is classified based on SNI 19-3964-1995, supplemented with components of B3 waste and diapers. The results of the analysis show that the average of waste generation is 14.99 kg/day where the treated waste is 11.36 kg/day and the untreated or residual waste is 3.63 kg/day with the largest composition is food waste with 10.66 kg/day (71%). With SAMTAMA Program implementation, the waste potential reduction can reach 0.019 kg/day/person.
Regita Nurul Anggraeni
Journal of Environmental Engineering & Waste Management, Volume 5, pp 101-112; https://doi.org/10.33021/jenv.v5i2.990

Abstract:
Water used to meet the daily needs of human has different characteristics depending on the quality and amount of substances found in it. Turbidity can performance the quality of the water. The raw water used in this research comes from Kalimalang River. Coagulation and flocculation are one of the most important processes to remove the substances in raw water. Detention time is the main parameter for the flocculation process. Objectives. This research aims to find out the optimum of detention time in the flocculation prototype unit. Methods and result. Designing and assembling the flocculator lab-scale prototype using 20 cm of pipe diameter. Running the prototype and analysis the effect of detention time to the clarified water turbidity in 30 minutes of 1 Liter imhoff cone with raw water range 41-60 NTU in a long dry season. The result is the optimum clarified water turbidity is found in the 19,7 minutes detention time appropriate to the 41-60 NTU raw water turbidity range. Conclusion. The result shows, that the optimum detention time was obtained in 19,7 minutes for 41-60 NTU raw water turbidity range.
Hiqmatus Sholichah
Journal of Environmental Engineering & Waste Management, Volume 5, pp 156-169; https://doi.org/10.33021/jenv.v5i2.930

Abstract:
PT HS is a world’s leading toy manufacturing company with more than 6,000 workers. Due to the high number of workers in PT. HS, it will impact to domestic activities (toilet discharge). Based on the annual report for wastewater effluent, noted that parameter ammonia from PT HS’s wastewater effluent was exceeding the industrial estate limit which the average of ammonia concentration is 50 mg/L. Whereas, In the industrial estate regulation contain of several standard parameters that must be comply by the company such as ammonia standard which has maximum 10 mg/L for the wastewater effluent. Objectives: The objectives of this experiment are to know the optimum dose of NaOCl 9% on ammonia removal and to know the concentration of residual chlorine after the treatment process. Method and results: This research use the experimental method to get the primary data. After the experiment in the laboratory, the results proved that the sodium hypochlorite exposure reduces ammonia concentration in water samples with 82,2% removal efficiency from 50 mg/L to 8,9 mg/L ammonia concentration reduced with 110 mg/L of NaOCl 9% solution within 30 minutes contact time and it resulted the residual chlorine 0.72 mg/L. Conclusion: The chlorination process was effective to reduce the ammonia concentration. Also, the residual chlorine was still in the standard limit which not exceeds from 1 mg/L. The result also shows that the dose variations of sodium hypochlorite influence ammonia removal efficiencies. Also, mostly the total residual chlorine forecast will increase with the increasing sodium chlorine dose.
Martogi Pasaribu
Journal of Environmental Engineering & Waste Management, Volume 5, pp 1-14; https://doi.org/10.33021/jenv.v5i1.961

Abstract:
Laundry wastewater is dangerous if it is immediately disposed into a river without treating it first. One of the chemicals contained in laundry wastewater is a phosphate compound. If laundry wastewater is discharged directly into the river it will increase the phosphate content as a nutrient in river water which can be dangerous for living creatures. The high nutrient in the river will cause eutrophication in the river which will adversely affect aquatic biota. One treatment that can be done is the process of adsorption with activated carbon made from bintaro fruit shells.
Filson Maratur Sidjabat, Johan Krisnanto Runtuk
Journal of Environmental Engineering & Waste Management, Volume 4; https://doi.org/10.33021/jenv.v4i1.659

Abstract:
Nowadays, innovation and improvement in the industrial and logistic sector are significantly increasing sustainability issues and awareness. The concept of green supply chain focuses on the supply chain management that aims to reduce the environmental impacts, increasing the natural and ecological efficiency. The companies that are willing to accelerate their environmental performances will enhance competitive advantage that will bring income and market share enhancement, also a more positive corporate image. From the literature study, several green supplier criteria were identified and then be selected and categorized by interviewing the experts. From those results, ten criteria been developed in the model by using MCDM methods, which are DEMATEL and ANP. There are five respondents as experts in the environmental engineering field and industrial estate management, who know best the condition in Cikarang Industrial Estate. Five top criteria that have the highest weight number are Environmental management system (EMS), PROPER assessment from KLHK Indonesia (PROPER), Pollution prevention and control (PLC), Energy management/efficiency (EM), and Green design or R&D (GD).
Erna Styani, Endang Sri Lestari, Ika Widiana, Muhammad Ramadhan
Journal of Environmental Engineering & Waste Management, Volume 4; https://doi.org/10.33021/jenv.v4i1.653

Abstract:
This study focused on Making and Testing sample control as reference material on determination of nitrite content in water and waste water by using UV-Visible Spectrophotometer. Sample control has been made to replaced Certified Reference Materials (CRM) for determination of Nitrite content in water and waste water by using UV -Visible Spectrophotometer. Substitute materials for CRM should be homogeneous and stable, so the homogenity and stability control sample that has been made in this study is tested by using standard referring to ISO Guide 35 , 2006. The result of this experiments shows that the values of Fstat and Ftable on homogenity test are 0.796 and 3.179 (Fstat < Ftable); while the values of tstat and table on the stability test are 0.431 and 2.101 (tstat < table), the mean of control sample concentration is 0,0435 mg / L. All test parameters have been qualified in accordance with ISO Guide 35 , 2006. The result of this research shows that the control of samples on the determination of Nitrite in water and waste water by using UV-Visible Spectrophotometer can be used as substitute for CRM and reference material.
Dedi Hudaedi, Hariyadi Hariyadi, Syaiful Anwar
Journal of Environmental Engineering & Waste Management, Volume 3; https://doi.org/10.33021/jenv.v3i1.397

Abstract:
The ability of East Manggarai Regency to meet the electricity needs of the region is estimated at only 44.91%. This metter is caused by natural conditions that have a dry climate and critical land, making it difficult to can improve of community economy and generaly region for development of adequate electricity. Therefore, the electrical energi need has been to development challenge, while fossil energi untenable. The construction of a biomass from the Gamal (Gliricidia sepium) plant is a potential alternative to develop. This research aimed to identify the potential lands for Gamal and predict the electricity potency. The method was image analysis from Citra TM 8 using GIS Version 10.1 as an analysis tool. Collecting data was through community interviews with purposive sampling method. The results of this study described the degraded land areas of 187.462,01 hectares which are the potential land for Gamal planting. Prediction of critical lands could produce 98 181.76 m3 of wood products and generate 18.90 MW / year of electricity.
Ika Kusumawati
Journal of Environmental Engineering & Waste Management, Volume 3; https://doi.org/10.33021/jenv.v3i1.399

Abstract:
Kecamatan Selat Nasik is one of the subdistricts in Belitung Regency with limited avaliability of clean water. It is because the district located in the archipelago with limited clean water sources. The purpose of this study is to determine the potential of clean water. The analysis of this study are: clean water analysis, population growth analysis, and water availability analysis. The final result shows availability of clean water both 466.366 liter per person per day (in 2018) and 519.611 liter per person per day (in 2023). While the necessity of clean water required both 586.260 liter per person per day (in 2018) and 556.470 liter per person per day (in 2023). In other words, the needs of clean water in Kecamatan Nasik until 2023 can not been able to cover necessity of clean water population yet.
Temmy Wikaningrum
Journal of Environmental Engineering & Waste Management, Volume 3; https://doi.org/10.33021/jenv.v3i1.401

Abstract:
. The key factors which supported to develop sustainaibility in the environmental management in the industrial estate was studied by many approaches. The principles of analysis were elaborated by the multi dimension key factors that affecting the policy of the environmental manager in ecology, economy, social, technology and estate management aspects. This study was initiated by considering and combining the dominant factors which the results of prior researches that using Multi-Dimensional Scaling (MDS) method. The dominants factors were reveiwed by expert judgment approach by Bourgeois matrix as the propective analysis tool. The analysis was focus in the key factors that has low value in the dependence (<1) but has high value in the influence (>1) of the normalized graph of dependence-inluence. The key factors were a) implementation of 3R for hazardous waste; b) industrial wastewater quality; c) industrial estate wastewater quality ;d) labor condition, and e) industrial water demand. The study was analyze that the optimistic scenario can be obtainedby the industrial estate manager by conducting the strategic steps. The initial program was recommended by enforcing the industrial companies to improve their waste water quality and increasing 3R of hazardous waste, that will enhance increasing the waste water quality of the centralized wastewater treatment of industrial estate. The environmental synergy between industrial company and industrial estate management will promote the good labour condition and stakeholders trust for more business opportunities that indicated by increasing industrial water demand.
Yunita Ismail Masjud
Journal of Environmental Engineering & Waste Management, Volume 3; https://doi.org/10.33021/jenv.v3i2.484

Abstract:
Changes in land use require consideration of the sustainability of the area. The principle of a triple bottom line in sustainable development must be applied. This research builds a sustainable development model in Bekasi Regency. The secondary data used is from the Central Bureau of Statistics of Bekasi Regency. The variables used are the average of rainfall, the number of population, the number of job seekers, the area of rice field, the area of rice harvest, the production of wetland rice, and the production of field rice as independent variable and GDP as the dependent variable. Consideration of the selection of variables by looking at the economic, social and environmental aspects that are aspects that determine the sustainability of development. Data analysis was done by using multiple linear regression. The results showed that the population, paddy field area, paddy field production have a significant positive effect to PDRB, while the number of job seekers, paddy field area, and paddy field production significantly negatively. The average variable of rainfall has no significant effect to GRDP. Taken together (simultaneously) all the independent variables have a significant effect on GRDP.
Christoforus Williem Deo Lumoindong, Andre Muslim, Burawi Mohamed Nasreddin, Mia Galina
Journal of Environmental Engineering & Waste Management, Volume 3; https://doi.org/10.33021/jenv.v3i2.442

Abstract:
Nowadays, internet connectivity is one of the staple things in human lifestyle, especially for those who live in cities. There are a lot of ways to connect to the internet, and one of them is using Wi-Fi (Wireless Fidelity) connection. Wi-Fi connection is seen as the most reliable connection, until Li-Fi (Light Fidelity) technology is coined in 2011. Li-Fi uses visible light as data transfer medium instead of radio frequency (RF) signal used by Wi-Fi. Theoretically, Li-Fi is able to reach hundred times of Wi-Fi connection speed due to their use of light as data transfer medium. Li-Fi is also expected as a solution to environmental problems caused by Wi-Fi. The RF signal used by Wi-Fi can cause some environmental problems such as growth inhibition and diseases to organisms including humans. The visible light used by Li-Fi is expected to cause minimal effects to the environment, as Li-Fi uses common LED light bulbs which are used as home lighting apparatus. Li-Fi is commonly seen as a ‘greener’ technology compared to Wi-Fi. In this review, the performance and environmental impacts of both Wi-Fi and Li-Fi are analysed to determine whether Li-Fi is really capable to be a ‘greener’ replacement to Wi-Fi technology
Hiqmatus Sholichah, Annisa Nur Wahyuni
Journal of Environmental Engineering & Waste Management, Volume 4; https://doi.org/10.33021/jenv.v4i1.622

Abstract:
Pada dasarnya United States Environmental Protection Agency (USEPA)menyatakan bahwa pembangunan perkotaan bergantung pada 3 pilar yaitu ekonomi, sosial dan lingkungan yang dapat mewujudkan keseimbangan pembangunan nasional. Pembangunan perkotaan menjadi bagian penting dalam meningkatnya kualitas lingkungan, taraf hidup, kemampuan dan kemandirian masyarakat. Pembangunan perkotaan dititik beratkan pada sistem kota yang kuat, dinamis, dan diselenggarakan pada tata kesinambungan yang tepat. Kawasan perkotaan semakin penting peranannya dengan kegiatan seperti pusat pelayanan, pusat produksi, distribusi, serta pusat inovasi dan kemajuan sosial budaya. Pemuda sebagai generasi bangsa harus berperan aktif dalam membangun keseimbangan perkotaan terlebih membangun kesejahteraan masyarakat dalam bentuk kerja nyata contohnya melalui kegiatan pemuda “Bricus-system” berbasis Bio Cyclo Farming yang terfokus pada pengelolaan sampah organik sebagai media budidaya cacing tanah (Lumbricus Rubellus) dengan usaha mereduksi limbah organik dan melakukan proses pengelolaan limbah untuk dimanfaatkan kembali pada sektor lainnya. Oleh karena itu diperlukan pengembangan kawasan tertentu yang dapat mengurangi risiko produksi limbah skala besar, berwawasan lingkungan dan beruntun pada penerapan konsep Bio Cyclo Farming, dalam hal ini penulis menyusun bussiness plan sebagai konsep implementasi kegiatan tersebut. Tujuan yang ingin dicapai dalam penelitianini adalah melalui kegiatan peran pemuda “Bricus-system” untuk memperbaiki kondisi lingkungan yang mengalami penurunan daya fungsi dengan memanfaatkan limbah organik sebagai media budidaya cacing yang diharapkan dapat memperbaiki kondisi lingkungan dan ekonomi. Metode penelitian yang digunakan adalah studi kasus dengan melakukan observasi terhadap daerah yang mengalami masalah pembangunan keseimbangan perkotaan dan melakukan perbaikan daerah tersebut melalui kegiatan pemuda “Bricus-system” berbasis Bio Cyclo Farming.
M. Yani Syafei, Burhan Primanintyo, Mohamad Nur Isnanda
Journal of Environmental Engineering & Waste Management, Volume 3; https://doi.org/10.33021/jenv.v3i1.398

Abstract:
PT. YMI is one of the automotive manufacturers for two-wheeled vehicles. As a part of the Astra Group, the company strives to become a "Green Company" through the AGC (Astra Green Company) program. One of its assessments is a 30% wastewater recycle program per month which aims to save or use clean water efficiently. The technology used for purification of effluent water from waste water treatment is by Reverse Osmosis technology with initial treatment by using Cation Resin, Activated Carbon and Micro-filtration process. The membrane used for this Reverse Osmosis system is the Filmtec 30-4040 TW / BW. The result of the application of Reverse Osmosis technology to clean water usage in PT. YMI is 34.99% which this success can be achieved due to the recycling of effluent water contributing 100%. In addition, there are also benefits obtained from the absence of effluent water into the industrial estate. Income fee earned amounted to Rp 23,591,675, - / month. For expenses (electricity usage, spare part and overtime) Rp 11.470.172, - / month so the profit earned is Rp 12.121.503, - / month. Payback Period for this R.O. system will be achieved for 24 months or 2 years.
, J. K. Nugraha, , Nida Mariam
Journal of Environmental Engineering & Waste Management, Volume 3; https://doi.org/10.33021/jenv.v3i2.483

Abstract:
The quick advancement of gadgets innovation industry offers an extensive variety of item decisions. This circumstance supported the improvement of electronic industry in Indonesia to be quick. The speeding up development is combined with items that are quickly out of date on the grounds that more current age items have showed up once more. So that, the electronic things which have been unused in the end move toward becoming refuse that is frequently alluded to as Electronic Waste (e-squander) and encountered an exceptionally fast increment. From the aftereffects of research in creating nations including Indonesia, E-Waste isn't found in squander Final Disposal (TPA). This is because of the high number of reusing and reuse (reusing) of utilized electronic products in the casual division. Reusing of the casual division is firmly identified with natural and wellbeing impacts. It isn't understood that numerous segments of electronic products contain hazardous toxic substances (B3). With a specific end goal to handling these issues, creating nations including Indonesia require modern cycle innovation, as well as significant administration measures and the presence of an approach to avert ecological effects. Nevertheless, contrasted and specialized viewpoints, e-squander administration strategy turns out to be more essential and earnest. In this paper, we endeavor to present the conditions and administration approaches that exist in Indonesia today and elective e-waste reusing innovations that identify with e-squander administration arrangements that are coordinated in the formal and casual segments.
Kezia Kusumaningtyas, Ramadhani Fithratullah, Clara Meluk
Journal of Environmental Engineering & Waste Management, Volume 4; https://doi.org/10.33021/jenv.v4i1.702

Abstract:
Universitas Indonesia is the initiator of a UI GreenMetric World University international ranking system, which is a ranking system that aims to bring together universities that share the same goals in terms of sustainability. At present President University has participated in the ranking system. To find out the perceptions of the academic community on the implementation of the ranking system at President University, one of the criteria that is examined is waste management as one of the parameters of the GreenMetric UI. To get data, the method of direct observation is done to get the desired data by making a questionnaire in the form of a google form filled in by students and interview staff and operators at President University. Based on the results of data processing, it can be seen that the academic community at President University campus in general does not fully understand the waste management system on campus. So that education needs to be done about the management system developed on the internal campus of President University.
Ratnaningsih Ruhiyat, Dwi Indrawati, Etty Indrawati, Lailautsiami Lailautsiami
Journal of Environmental Engineering & Waste Management, Volume 3; https://doi.org/10.33021/jenv.v3i2.463

Abstract:
The Cibodas village is located in Pasir Jambu subdistrict at Bandung Regency, majority community livelihood edged is dairy cattle and agriculture. The problem of waste management in terms of cattle manure that could potentially produce methane (CH4) as one of the greenhouse gases (GRK), and when the cattle manure dumped into the River then it can pollute the rivers directly. The purpose of this study is to see how big the benefits of social and economic aspects of the utilization of cattle manure at the farmer scale. A series of Research include : 1) collect opinions and responses to ranchers, livestock farmers and administrators, by filling the questionnaire against the management of the cattle manure, 2) Observations of operational at the process of vermicomposting in two locations, namely in kampong Papak Manggu and kampong Injeman Cibodas village, during the activities of Demontration plot. The observed data covering 1) production process of vermicomposting (worm production and the weight of the raw materials, daily activities, results of casting, mass balance and quality of organic fertilizer) 2) Required total working hour of process of vermicomposting 3) Space and facilities requirement 4) cost and price analysis. The research show that vermicompost is suitable to be implemented in processing cattle manure, base on the following reason : a) cleaning of the environment b) minimum labor requirement c) providing additional income d) availability of organic fertilizer.
Muhammad Yeza Baihaqi, Wilbert Wijaya, M. Arwin Renardi Widyoko, Temmy Wikaningrum
Journal of Environmental Engineering & Waste Management, Volume 3; https://doi.org/10.33021/jenv.v3i2.439

Abstract:
Service on garbage pick-up is an obligatory service which, should be provided by the goverment. Due to human’s active mobility, which doing activities that may result in waste, that may cause bad impact on the environment and also human themselves. However, the service cost for garbage pick up is not that affaordable, in which government is required to do efficiency, especially to efficient in terms of time. In this study, the place that was used as sample is Padang City. In Padang City, the time that needed to pick-up the garbage from the time the trucks start the trip from the shelter, up to each pick-up point and drop it to the landfill site takes around 6.97 hours. This data is a secondary data that obtained by previous researchers. In this study, the time simulationhas been elaborated by replacing the conventional garbage bin to smart dust bin. Smart dustbin is equipped with sensor to count how much garbage inside it and other types of sensor are also equiped to accommodate its work. In addition, Smart Dustbin also equiped with GSM module to send information for indicating that the garbage bin has full. A simulation result showed that using smart dustbin can reducing the pick up time according to the pick-up points that informed by the GSM module.
Tetuko Kurniawan, , Filson Maratur Sidjabat
Journal of Environmental Engineering & Waste Management, Volume 3; https://doi.org/10.33021/jenv.v3i1.396

Abstract:
In recent years, concerns regarding to wastewater sludge disposal have increased globally. Production of sludge has increased recently due to the growth of population. Wastewater sludge classified as a hazardous substance, it is not easy to dispose because of certain treatment is required. Typically, sludge is treated at secured landfill which its limited in availability and expensive. On the other hand, wastewater sludge originated from biological treatment contains organic substance that can be converted into alternative energy resources. A technology is needed that is able to reduce the volume of sludge and convert sludge into energy source. We present an overview of various technologies that can be used for conversion of sludge into energy resources. Those technologies are anaerobic digestion, pelletization, combustion, pyrolysis and gasification. Progress and challenges of each technology is presented in detail. A summary of sludge characteristic originated from different source will be discussed as well. Emissions and residues that determines the environmental impact is also considered. Referring to some previous research, it known that wastewater sludge, as unwanted product, has the potential to become future energy resource. This potential can only be used properly if the method of conversion are effective and efficient.
Aidah Maqbulah Al-Hadi, Diah Ayu Lestari, Julio Putra David
Journal of Environmental Engineering & Waste Management, Volume 4; https://doi.org/10.33021/jenv.v4i1.692

Abstract:
Leachate is one of the products that produced by a landfill. Leachate is extremely potential to pollute the environment, such as soil, groundwater and surface water. Air Dingin and Jatibarang landfill have a treatment to treat the leachate produced by the landfill before it is discharged to the environment because it has to be in accordance with Regulation of Ministry of Environment and Forestry of Republic of Indonesia Number P.59/Menlhk/Setjen/Kum.1/7/2016 concern Leachate Standard Quality for Businesses and/or Activities of Landfill. The leachate management in Air Dingin Landfill is controlled landfill, while in Jatibarang landfill, the the leachate management is coagulation-flocculation system. COD and BOD contained in Air Dingin Landfill leachate is lower than Jatibarang Landfill. In order to make leachate more environmental friendly, some innovative methods for leachate management have been developed, such as biofilter, wetlands, coagulation-fluctuation, and electrocoagulation.
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