Modeling of the Contact-Adsorption-Regeneration (CAR) activated sludge process.
Contact-Adsorption-Regeneration (CAR) process is a cost-effective system for wastewater treatment and has a potential for application in less-developed regions. To offer a better understanding of this process, a mathematical model was established on the basis of Activated Sludge Model No. 1 (ASM1) and by incorporating the adsorption and different hydrolysis processes. The model predictions were compared with the measured data in terms of effluent concentrations and removals of both chemical oxygen demand (COD) and NH(4)(+)-N. A good agreement between the predicted and measured data was observed, indicating that the model was capable of predicting the rapid adsorption, COD removal and nitrification processes in the CAR system. This work provides an experimental and theoretical basis for the application of the CAR process in less-developed regions.
Liu
Shao-Gen
SG
Department of Chemistry, University of Science and Technology of China, Hefei, China.
Ni
Bing-jie
BJ
Li
Wen-Wei
WW
Sheng
Guo-Ping
GP
Tang
Yong
Y
Yu
Han-Qing
HQ
D000327:Adsorption; D000641:Ammonia / Q000378:metabolism; D001420:Bacteria, Aerobic / Q000502:physiology*; D001422:Bacterial Adhesion / Q000502:physiology; D057919:Biological Oxygen Demand Analysis / Q000379:methods*; D019149:Bioreactors / Q000382:microbiology*; D003198:Computer Simulation; D006868:Hydrolysis; D008954:Models, Biological; D010100:Oxygen / Q000378:metabolism*; D012722:Sewage / Q000382:microbiology*; D014874:Water Pollutants, Chemical / Q000378:metabolism*; D018508:Water Purification / Q000379:methods
D012722:Sewage; D014874:Water Pollutants, Chemical; D000641:Ammonia; D010100:Oxygen