Enhanced volatile fatty acids (VFAs) production in a thermophilic fermenter with stepwise pH increase – Investigation on dissolved organic matter transformation and microbial community shift

• Main Authors: Chen, Yun, Jiang, Xie, Xiao, Keke, Shen, Nan, Zeng, Raymond J., Zhou, Yan
• Other Authors: School of Civil and Environmental Engineering
• Format: Article
• Language: English
• Published: 2017
• Subjects: Progressive pH Increase; VFAs Production
• Online Access: https://hdl.handle.net/10356/86555; http://hdl.handle.net/10220/44071
• Institution: Nanyang Technological University

In this study, a mixture of primary and wasted activated sludge was fermented in a semi-continuous reactor aiming for enhanced volatile fatty acids (VFAs) production. The reactor was subjected to a stepwise pH increase from 7 to 10 during approximately 130 days of operation. The result revealed that...