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Waste Manag

Title:		Effects of aeration and leachate recirculation on methyl mercaptan emissions from landfill
Author(s):		Zhang S; Long Y; Fang Y; Du Y; Liu W; Shen D;
Address:		"Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China. Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China. Electronic address: longyy@zjgsu.edu.cn"
Journal Title:		Waste Manag
Year:		2017
Volume:		20170721
Issue:
Page Number:		337 - 343
DOI:		10.1016/j.wasman.2017.07.013
ISSN/ISBN:		1879-2456 (Electronic) 0956-053X (Linking)
Abstract:		"The issue of odorous volatile organic sulfur compound methyl mercaptan (MM) released from landfill sites cannot be ignored for its extremely low odor threshold and high toxicity. In this study, we focused on the formation and emission of MM in four lab-scaled simulated landfill reactors running in different operation modes, namely, R1 and R2, without leachate recirculation, running under anaerobic and semi-aerobic atmosphere, R3 and R4, with leachate recirculation, running under anaerobic and semi-aerobic atmosphere, respectively. From the perspective of odor abatement, the semi-aerobic operation mode can efficiently lower the emitted MM concentration by 87.4-94.9%, relative to the semi-aerobic operation mode. Furthermore, under semi-aerobic conditions, leachate recirculation substantially shortened the period of MM influence by 12.7%, thus reducing the risk of affecting the surrounding atmospheric environment. The formation of MM was dependent on the characteristics such as the volatile fatty acid concentration and chemical oxygen demand in the leachate and sulfide concentration of the refuse. Overall, MM release can be effectively controlled with semi-aerobic operation mode and leachate recirculation"
Keywords:		"Anaerobiosis *Bioreactors *Refuse Disposal *Sulfhydryl Compounds Waste Disposal Facilities Water Pollutants, Chemical Aeration Landfill Leachate recirculation Methyl mercaptan Odor;"
Notes:		"MedlineZhang, Siyuan Long, Yuyang Fang, Yuan Du, Yao Liu, Weijia Shen, Dongsheng eng 2017/07/25 Waste Manag. 2017 Oct; 68:337-343. doi: 10.1016/j.wasman.2017.07.013. Epub 2017 Jul 21"