Fe-enhanced primary sedimentation and sludge acidogenesis for resources (P and PHA) recovery during wastewater treatment

Professor Li, Xiao-yan   (Project Coordinator (PC))

Professor Leung Kenneth Mei Yee   (Co-principal investigator)

Dr Lee Po-Heng, Henry   (Co-principal investigator)

Professor Zhang Xiangru   (Co-principal investigator)

Professor Shih Kaimin   (Co-principal investigator)

Professor Zhang Tong   (Co-principal investigator)

Professor Li Xiang-dong   (Co-principal investigator)

42

2015-06-01

10093440

Fe-enhanced primary sedimentation and sludge acidogenesis for resources (P and PHA) recovery during wastewater treatment

Iron-enhanced sedimentation, PHA and bioplastics, Phosphorus recovery, Sludge acidogensis, Wastewater treatment

Environmental,Biochemical Engineering

Engineering (E)

C7044-14G

Collaborative Research Fund (CRF) - Group Research Project

2014

Completed

1) To develop a novel chemical-biological process with ferric iron-enhanced sedimentation and acidogenic sludge hydrolysis to achieve the goals of high nutrient removal efficiencies, energy-saving, P recovery and organic utilization in municipal wastewater treatment; 2) To investigate and optimize the VFA production and P release processes and the microbial community characteristics involved in the hydrolysis and acidogenesis of the organic- and P-rich CEPT sludge under an anaerobic condition; 3) To utilize VFAs in the acidogenic sludge liquor for PHA production as a valuable bioplastic product and optimize the biosynthesis process to increase the PHA yield and improve the value-added result; 4) To carry out pilot-scale experiments on the CEPT and add-on sludge module to demonstrate the technological breakthrough, cost-effectiveness, and long-term benefits of the novel process for a more sustainable wastewater treatment and waste-to-resource operation.