Journal of Asian Scientific Research
ISSN / EISSN : 2226-5724 / 2223-1331
Published by: Pak Publishing Group (10.18488)
Total articles ≅ 192
Latest articles in this journal
Journal of Asian Scientific Research, Volume 11, pp 42-49; https://doi.org/10.18488/journal.2.2021.114.42.49
Coagulation process using low dosage of plant-based coagulant to remove high chemical oxygen demand (COD) and turbidity is important for water treatment. This study presents the treatment of pond water using plant-based pineapple leaf coagulant to achieve high COD and turbidity removal. The coagulation was performed using a jar test experiment of pond water at different pH followed by different dosages of pineapple leaf coagulant. It was found that the highest COD and turbidity removal ranged between 94.1 – 94.6 % and 88.3 – 88.4 % at pH 8 respectively, using low dosage (50 mg L-1) of pineapple leaf coagulant. The final COD and turbidity values ranged between 7.3 – 8.0 mg L-1 and 17.7 – 17.8 formazin turbidity unit (FTU) respectively, which are lower compared with results from other studies that used high dosage coagulants. Moreover, the final pH, COD, turbidity, dissolved oxygen (DO), and total suspended solid (TSS) values of the treated pond water were below the standard limits set by the National Water Quality Standards for Malaysia (NWQSM) class IIB, which represents water bodies suitable for recreational use with body contact (DOE, 2016). Therefore, it is expected that the newly-formulated waste utilisation of pineapple leaf coagulant can reduce the usage of chemical coagulants and can further be used for different types of water.
Journal of Asian Scientific Research, Volume 11, pp 25-33; https://doi.org/10.18488/journal.2.2021.113.25.33
The purpose of the article is to assess the current challenges in the implementation of the Digital Culture Environment among the rural community in Malaysia. The Covid-19 pandemic has changed the online environment where a drastic usage of digital tools has been observed among Malaysian. The digital culture is defined as the culture shaped by the emergence of digital technologies and their usage in the community. The literature survey approach has been applied as the methodology of study to explore the current challenges in the implementation of the Digital Culture Environment among the rural community in Malaysia. Several challenges have been identified, including the rural sustainable issues, digital divides, demographic factors, Information, Communication and Technology (ICT) factor, individual, as well as behavior factor. According to the literature review conducted, these challenges have been revealed to significantly hurdle the government’s movement in implementing the digital culture within the rural community. To overcome these challenges, a strong and effective supporting model should be formulated to assist the government in building and establish a digital culture environment in Malaysia, particularly among the rural community. Hence, a further in-depth study is required to acquire comprehensive literature information to address this issue.
Journal of Asian Scientific Research, Volume 11, pp 34-41; https://doi.org/10.18488/journal.2.2021.113.34.41
Morinda citrifolia or Noni is known as an important dietary supplement, food functional ingredient, or as natural health enhancer that is used throughout the world. Different parts of the plant have been proven to carry compounds that have high medicinal values such as terpenoids, alkaloids and anthraquinones. The stem bark of Morinda citrifolia collected from different types of soil were studied. It aimed to investigate the influence of different geographical factor on its metabolite profile by multivariate statistical analyses of spectral data deduced by NMR methods. A metabolomic approach employing concatenated GCMS and NMR data was utilized to study the relationships between environment and plant metabolism. Morinda citrifolia stem barks were pulverized into fine powder. They were extracted using chloroform and were taken to dryness in a rotary evaporator under reduced pressure. The Morinda citrifolia crudes were proceeded for Nuclear Magnetic Resonance (NMR) analysis. Visual inspection on the 1H-NMR Morinda citrifolia spectra showed that the different geographical areas have similar profile, but they have different concentration of various constituents. Major constituents identified were aromatics (δH 7.25-7.50), sugars and glycosides (δH 2.25-5.0), fatty acids/aliphatics (δH 0.5-2.0) and aldehydic compound (δH 9.75). However, since the difference among the geographical areas were not clear from visual analysis, the analysis was proceeded using multivariate analysis, Principal Component Analysis (PCA) model. Thus, further analysis was done to examine the consistency of geographical area for each batch of Morinda citrifolia. This is to identify which type of soil is suitable as class model.
Journal of Asian Scientific Research, Volume 11, pp 15-24; https://doi.org/10.18488/journal.2.2021.112.15.24
Pollutants from sewage wastewater are major concerns due to their environmental effects. Thus, an effective sewage wastewater treatment plant is important to ensure discharged effluent is well treated before it can be released to rivers or water streams. This study aims to evaluate the performance of the Activated Sludge Hi-Kleen Treatment Plant (ASHTP) located at H Block (ASHTP at H Block) and L Block (ASHTP at L Block) in UiTM Sarawak Branch, Samarahan Campus, Sarawak, Malaysia. The evaluation was based on physicochemical and removal efficiency namely pH, temperature, turbidity, chemical oxygen demand (COD), and total suspended solids (TSS) from raw influent and treated effluent. The findings indicated that the overall performance of both ASHTP at H Block and L Block were satisfactory where treated effluent meets the standard discharge limits of Environmental Quality (Sewage) Regulations 2009 (Standard B). For ASHTP at H Block, the removal efficiencies of turbidity, COD, and TSS were found to be 86.00, 13.76, and 88.02% respectively, in which the pH, temperature, turbidity, COD, and TSS of the treated effluent were 7.30, 28.10°C, 10.40 NTU, 14.10 mg/L and 8.90 mg/L respectively. Meanwhile, for ASHTP at L Block, the removal efficiencies of turbidity, COD, and TSS were found to be 43.20, 41.90, and 51.61% respectively, in which the pH, temperature, turbidity, COD, and TSS in the treated effluent were 7.30, 27.90°C, 21.10 NTU, 58.10 mg/L and 18.00 mg/L respectively. Proper maintenance of sewage treatment plant is important to ensure its effectiveness as well as to prolong its lifespan.
Journal of Asian Scientific Research, Volume 11, pp 1-14; https://doi.org/10.18488/journal.2.2021.111.1.14
Journal of Asian Scientific Research, Volume 10, pp 156-164; https://doi.org/10.18488/journal.2.2020.103.156.164
Journal of Asian Scientific Research, Volume 10, pp 229-237; https://doi.org/10.18488/journal.2.2020.103.229.237
Journal of Asian Scientific Research, Volume 10, pp 1-16; https://doi.org/10.18488/journal.2.2020.101.1.16
Journal of Asian Scientific Research, Volume 10, pp 17-32; https://doi.org/10.18488/journal.2.2020.101.17.32
Journal of Asian Scientific Research, Volume 10, pp 96-104; https://doi.org/10.18488/journal.2.2020.102.96.104