Reducing H2S production by O-2 feedback control during large-scale sewage sludge composting
Data(s) |
2011
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Resumo |
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. National High-Tech R&D Program of China (863 Program) 2006AA06Z384;National Key Technology R&D Program of China 2006BAD25B03 |
Identificador | |
Idioma(s) |
英语 |
Fonte |
Chen Jun,Chen Tong-Bin,Gao Ding,Lei Mei,Zheng Guo-Di,Liu Hong-Tao,Guo Song-Lin,Cai Lu.Reducing H2S production by O-2 feedback control during large-scale sewage sludge composting.WASTE MANAGEMENT,2011,31(1):65-70 |
Palavras-Chave | #SULFIDE EMISSION CONTROL #HYDROGEN-SULFIDE #SWINE MANURE #WASTE-WATER #FACILITIES #AMMONIA #BIOFILTRATION #DECOMPOSITION #TECHNOLOGIES #CHEMICALS |
Tipo |
期刊论文 |