Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6581200 | Chemical Engineering Journal | 2016 | 37 Pages |
Abstract
The Activated Sludge Model No. 3 (ASM3) was modified by considering the simultaneous storage and growth, heterotrophic nitrification and aerobic denitrification processes. The model was used to simulate the biological process of aerobic granular sludge (AGS) treating high COD and nitrogen piggery wastewater without any pretreatment. In the model, the AGS utilizes readily biodegradable substrates for simultaneous storage, growth and metabolism during the feast phase. It further utilizes storage products for secondary growth and metabolism during the famine phase. Finally, it produces inert organic carbon through the decay. For nitrogen removal, nitrification process is mainly heterotrophic nitrification. Denitrification is completed by a combined process of anoxic and aerobic denitrification. The comparison between simulation results and experimental data shows that the modified model satisfactorily simulated the organic substrates degradation, nitrification and denitrification processes of treatment of high-concentration piggery wastewater by AGS.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Jingtao Zhao, Jun Huang, Menglong Guan, Yonggui Zhao, Guoke Chen, Xueping Tian,