Numerical Model of Leachate Recirculation in Bioreactor Landfills with High Kitchen Waste Content
Open Access
- 24 June 2021
- Vol. 13 (13), 1750
- https://doi.org/10.3390/w13131750
Abstract
Surface spraying, horizontal trenches, and vertical wells are the most common leachate recirculation system used at landfills in engineering practice. In order to quantify the efficiency of the three aforementioned recirculation systems, a hydro–biochem–mechanical-coupled model was developed in the present work, which can describe hydrodynamic and biochemical behaviors in food-waste-rich landfills. A typical landfill cell was modeled in COMSOL. The results indicate that leachate recirculation can accelerate the decomposition of municipal solid waste (MSW) with food-rich waste content, relieving acidification, improving gas generation efficiency, and consequently, increasing the early settlement in landfills.Keywords
Funding Information
- The National Natural Science Foundation of China (52008071, 2019ZD0150, 2020–HYLH–48)
This publication has 49 references indexed in Scilit:
- Influence of moisture content and leachate recirculation on oxygen consumption and waste stabilization in post aeration phase of landfill operationScience of The Total Environment, 2021
- Analytical solution for longitudinal vibration of a floating pile in saturated porous media based on a fictitious saturated soil pile modelComputers and Geotechnics, 2020
- Effect of Leachate Recirculation on Biological Stability of Municipal Solid Waste Under Simi-Arid ConditionsAl-Qadisiyah Journal for Engineering Sciences, 2019
- Biochemical, hydrological and mechanical behaviors of high food waste content MSW landfill: Preliminary findings from a large-scale experimentWaste Management, 2017
- Acceleration of aged-landfill stabilization by combining partial nitrification and leachate recirculation: A field-scale studyJournal of Hazardous Materials, 2014
- A review of approaches for the long-term management of municipal solid waste landfillsWaste Management, 2012
- Comparison of semi-aerobic and anaerobic degradation of refuse with recirculation after leachate treatment by aged refuse bioreactorWaste Management, 2011
- Leachate recirculation in a landfill: Some insights obtained from the development of a simple 1-D modelWaste Management, 2011
- The potential for aeration of MSW landfills to accelerate completionWaste Management, 2008
- Influence of leachate recirculation on aerobic and anaerobic decomposition of solid wastesJournal of Hazardous Materials, 2007