Reducing H2S production by O2 feedback control during large-scale sewage sludge composting

被引:44
作者
Chen, Jun [1 ]
Chen, Tong-Bin [1 ]
Gao, Ding [1 ]
Lei, Mei [1 ]
Zheng, Guo-Di [1 ]
Liu, Hong-Tao [1 ]
Guo, Song-Lin [1 ]
Cai, Lu [1 ]
机构
[1] Chinese Acad Sci, Ctr Environm Remediat, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
关键词
SULFIDE EMISSION CONTROL; HYDROGEN-SULFIDE; SWINE MANURE; BIOFILTRATION; DECOMPOSITION; TECHNOLOGIES; CHEMICALS; REMOVAL; AMMONIA; SYSTEMS;
D O I
10.1016/j.wasman.2010.08.020
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Hydrogen sulfide (H2S) production patterns and the influence of oxygen (O-2) concentration were studied based on a well operated composting plant. A real-time, online multi-gas detection system was applied to monitor the concentrations of H2S and O-2 in the pile during composting. The results indicate that H2S was mainly produced during the early stage of composting, especially during the first 40 h. Lack of available O-2 was the main reason for H2S production. Maintaining the O-2 concentration higher than 14% in the pile could reduce H2S production. This study suggests that shortening the interval between aeration or aerating continuously to maintain a high O-2 concentration in the pile was an effective strategy for restraining H2S production in sewage sludge composting. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码:65 / 70
页数:6
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