The effect of pH on solubilization of organic matter and microbial community structures in sludge fermentation

• Main Authors: Maspolim, Yogananda, Zhou, Yan, Guo, Chenghong, Xiao, Keke, Ng, Wun Jern
• Other Authors: School of Civil and Environmental Engineering
• Format: Article
• Language: English
• Published: 2015
• Subjects: DRNTU::Engineering::Environmental engineering::Waste management
• Online Access: https://hdl.handle.net/10356/106226; http://hdl.handle.net/10220/26375
• Institution: Nanyang Technological University

Sludge fermentation between pH 4 and 11 was investigated to generate volatile fatty acids (VFA). Despite the highest sludge solubilization of 25.9% at pH 11, VFA accumulation was optimized at pH 8 (12.5% out of 13.1% sludge solubilization). 454 pyrosequencing identified wide diversity of acidogens i...