Title :
Parameters Optimization of Modified A²O Process for Low Strength Municipal Wastewater Treatment
Author :
Yin, Ming ; Li, Tian ; Yao, Haifeng ; Lu, Bin ; Ruan, Dakang
Author_Institution :
State Key Lab. of Pollution Control & Resource Reuse, Tongji Univ., Shanghai, China
Abstract :
A pilot-scale anaerobic-anoxic-oxic (A2O) bioreactor with 125 m3ldrd-1 capacity was tested for treating real low strength municipal wastewater. The results showed that when the hydraulic retention time (HRT) was 9.6 h , the sludge retention time (SRT) was 15 d, the sludge recycling ratio (SRR) and mixed liquor recycling ratio (MLRR) were 0.5 and 1.5 respectively, the effluent could meet the first A order (China GB18918-2002) .It was suggested that the operational state could be well known according to the changes of DO & ORP on-line sensors.
Keywords :
bioreactors; decontamination; sludge treatment; wastewater treatment; water pollution; bioreactor; hydraulic retention time; mixed liquor recycling ratio; modified A2O process; modified anaerobic-anoxic-oxic process; municipal wastewater treatment; parameter optimization; sludge recycling ratio; sludge retention time; time 15 d; time 9.6 h; Bioreactors; Biosensors; Effluents; Inductors; Nitrogen; Organisms; Recycling; Temperature sensors; Wastewater treatment; Water pollution;
Conference_Titel :
Bioinformatics and Biomedical Engineering , 2009. ICBBE 2009. 3rd International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2901-1
Electronic_ISBN :
978-1-4244-2902-8
DOI :
10.1109/ICBBE.2009.5163170
