Title :
Treatment of Landfill Leachate by Combined Photooxidation and Biological Anaerobic-Aerobic Method
Author :
Wang, Zong-ping ; Huang, Li-zhi ; Tao, Tao ; Fu, Sili ; Zuo, Jiaolan ; Lv, Bo
Author_Institution :
Sch. of Environ. Sci. & Eng., Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
The treatment of landfill leachate by combined photooxidation and biological anaerobic-aerobic method was investigated in this study. The effect of treating the landfill leachate with several single photochemical processes was examined and a comparison was made on the effect of treating the leachate with two integrated photochemical-biochemical processes in this experiment. Among such several processes as UV+ Fe3+, Fe3++C2O4 2-+UV, Fe3++H2O2+ Na2C2O4+UV and Fe3++ H2O2+UV, photo-Fenton process gave the highest COD removal rate of 65%. Among these two integrated photochemical-biochemical processes, the process of coagulation + photochemical treatment + anaerobic treatment + aerobic treatment gave a higher rate of COD removal as compared with the process of anaerobic treatment + aerobic treatment + coagulation + photochemical treatment, the rate of COD removal of the former amounting up to 94.8%.
Keywords :
biochemistry; carbon compounds; chemical hazards; coagulation; hydrogen compounds; iron; leaching; oxidation; oxygen; photochemistry; sodium compounds; ultraviolet radiation effects; C2O4; COD removal rate; Fe; H2O2; Na2C2O4; aerobic treatment; anaerobic treatment; biological anaerobic-aerobic method; chemical oxygen demand; coagulation; integrated photochemical-biochemical process; landfill leachate treatment; photo-Fenton process; photochemical treatment; photooxidation; Biodegradable materials; Biology; Coagulation; Costs; Iron; Nitrogen; Photochemistry; Sludge treatment; Testing; Thermal degradation;
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.2009.5163709
