Black water bloom induced by different types of organic matters and forming mechanisms of major odorous compounds

Self-made glass reactors were employed to study the occurrence of black water bloom induced by different types of organic matters, to clarify the precursor of volatile organic sulfur compounds (VOSCs), and then to preliminarily study its degradation mechanisms under laboratory-controlled conditions....

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Bibliographic Details
Published inHuanjing kexue Vol. 33; no. 9; p. 3152
Main Authors Lu, Xin, Feng, Zi-Yan, Shang, Jing-Ge, Fan, Cheng-Xin, Deng, Jian-Cai
Format Journal Article
LanguageChinese
Published China 01.09.2012
Subjects
China
Color
Environmental Monitoring
Eutrophication
Methionine - chemistry
Odorants
Organic Chemicals - analysis
Sulfur Compounds - analysis
Sulfur Compounds - chemistry
Volatile Organic Compounds - chemistry
Water Pollutants, Chemical - analysis
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Summary:Self-made glass reactors were employed to study the occurrence of black water bloom induced by different types of organic matters, to clarify the precursor of volatile organic sulfur compounds (VOSCs), and then to preliminarily study its degradation mechanisms under laboratory-controlled conditions. Our research indicated that provided organic matrix were as high as 1.0 g x L(-1), all organic matters could blacken the lake water regardless of sulfur appearance or not. However, compared with sulfur-free compounds that took more than 13 d to blacken the water, sulfur containing materials could accelerate the occurrence of black color to 7-13 d and increase the water chromaticity to above 410 which causing offensive odor consisted chiefly of DMDS, DMTS and DMTeS. Based on the function of methionine on the production of VOSCs, methionine was identified to be the precursors of VOSCs. Methionine was readily broke down by sulfate-reducing bacteria (SRB) (also other bacteria) (at 95% with the duration of 35 d) to pro
ISSN:0250-3301