Unveiling the mechanisms of how cationic polyacrylamide affects short-chain fatty acids accumulation during long-term anaerobic fermentation of waste activated sludge

• Published in: Water research (Oxford) Vol. 155; pp. 142 - 151
• Main Authors: Liu, Xuran, Xu, Qiuxiang, Wang, Dongbo, Wu, Yanxin, Yang, Qi, Liu, Yiwen, Wang, Qilin, Li, Xiaoming, Li, Hailong, Zeng, Guangming, Yang, Guojing
• Format: Journal Article
• Language: English
• Published: England Elsevier Ltd 15.05.2019
• Subjects: acetic acid; activated sludge; Anaerobic fermentation; biotransformation; Cationic polyacrylamide; chemical oxygen demand; community structure; dewatering; enzymes; fermentation; flocculation; hydrolysis; metabolites; microbial communities; polyacrylamide; polyacrylic acid; proteins; Short-chain fatty acids; solubilization; total suspended solids; Waste activated sludge; wastewater; Cationic polyacrylamide; Short-chain fatty acids; Anaerobic fermentation; Waste activated sludge

Cationic polyacrylamide, a flocculation powder widely used in wastewater pretreatment and sludge dewatering, was highly accumulated in waste activated sludge. However, its effect on short-chain fatty acids (SCFAs) accumulation from anaerobic fermentation of waste activated sludge has not been invest...