Application of landfill treatment approaches for stabilization of municipal solid waste

Waste Management
Stephanie C Bolyard, Debra R Reinhart

Abstract

This research sought to compare the effectiveness of three landfill enhanced treatment approaches aimed at removing releasable carbon and nitrogen after anaerobic landfilling including flushing with clean water (FB 1), leachate recirculation with ex-situ treatment (FB 2), and leachate recirculation with ex-situ treatment and in-situ aeration (FB 3). After extensive treatment of the waste in the FB scenarios, the overall solids and biodegradable fraction were reduced relative to the mature anaerobically treated waste. In terms of the overall degradation, aeration did not provide any advantage over flushing and anaerobic treatment. Flushing was the most effective approach at removing biodegradable components (i.e. cellulose and hemicellulose). Leachate quality improved for all FBs but through different mechanisms. A significant reduction in ammonia-nitrogen occurred in FB 1 and 3 due to flushing and aeration, respectively. The reduction of chemical oxygen demand (COD) in FB 1 was primarily due to flushing. Conversely, the reduction in COD in FBs 2 and 3 was due to oxidation and precipitation during Fenton's Reagent treatment. A mass balance on carbon and nitrogen revealed that a significant fraction still remained in the waste de...Continue Reading

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Citations

Apr 11, 2017·Environmental Technology·Peitao ZhaoLongji Yuan
Sep 29, 2017·Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA·Yan HeGongming Zhou
Feb 23, 2019·Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA·Syed Muaaz-Us-SalamMichael John Harbottle
Dec 4, 2019·Environmental Science and Pollution Research International·Zhongping QiuMin Li
Mar 5, 2021·International Microbiology : the Official Journal of the Spanish Society for Microbiology·Lerato Sekhohola-DlaminiMemory Tekere
Jun 14, 2021·Journal of Environmental Management·Fragkoulis PapagiannisIlya Pokutsa
Jul 31, 2021·Journal of Hazardous Materials·Guanyi ChenShaobin Wang

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