[Investigation on removal of organic pollutions in landfill leachate in Guangzhou City, China].
A set of simultaneous oxic and anaerobic bioreactor was used to treat the landfill leachate generated from Datianshan Landfill in Guangzhou, China. The results demonstrate that the average effluent concentration of COD and NH4(+)-N was 129 mg x L(-1) and 10 mg x L(-1) respectively, both of them can be controlled below the Chinese second grade discharge permit levels (COD(Cr) < 300 mg x L(-1), NH4(+)-N < 25 mg x L(-1)) for this kind of wastewater. Moreover, the GC-MS analysis was used to measure the organic pollutants contained in landfill leachate. 87 kinds of organic matters in this kind of landfill leachate were detected and discovered, and 16 of them belong to the list of environmental priority pollutants which is considered by EPA in USA. As a result, 31 kinds of totally 87 kinds of organic pollutants were completely removed, 14 kinds of totally 87 kinds of organic pollutants were removed more than 80%, the removal efficiencies of 25 kinds of organic pollutants reached over 50%.
Zhou
Shao-qi
SQ
College of Environmental Science and Engineering, South China University of Technology, Guangzhou 510640, China.
Yang
Zhi-quan
ZQ
D001673:Biodegradation, Environmental; D019149:Bioreactors; D002681:China; D009930:Organic Chemicals / Q000302:isolation & purification*; D012037:Refuse Disposal / Q000379:methods*; D014872:Water Movements; D014874:Water Pollutants, Chemical / Q000032:analysis*; D018508:Water Purification / Q000379:methods*
D009930:Organic Chemicals; D014874:Water Pollutants, Chemical