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

fYear

2009

fDate

11-13 June 2009

Firstpage

1

Lastpage

4

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICBBE.2009.5163709

Filename

5163709