Effects of ultrasonic pretreatment on sludge dewaterability andextracellular polymeric substances distributionin mesophilic anaerobic digestion |
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| Authors: | Liming Shao Guanzhao Wang Huacheng Xu Guanghui Yu Pinjing He |
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| Affiliation: | 1. State Key Laboratory of Pollution Control and Resources Reuse,Shanghai 200092,China;Key Laboratory of Yangtze River Water Environment,Shanghai 200092,China;College of Environmental Science and Enginee
2. College of Environmental Science and Engineering,Tongji University,Shanghai 200092,China |
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| Abstract: | Effect of ultrasonic pretreatment on sludge dewaterability was determined and the fate of extracellular polymeric substances (EPS) matrix in mesophilic anaerobic digestion after ultrasonic pretreatment was studied. Characteristics of proteins (PN), polysaccharides (PS), excitation-emission matrix (EEM) fluorescence spectroscopy and molecular weight (MW) distribution of dissolved organic matters (DOM) in different EPS fractions were evaluated. The results showed that after ultrasonic pretreatment, the normal... |
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| Keywords: | anaerobic digestion excitation-emission matrix extracellular polymeric substances sludge dewaterability |
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