[Toxicity assessments of landfill leachate based on CellSense biosensor].
The toxicity of landfill leachate of domestic wastes in different treatment unites landfill leachate pretreatment (No.1), facultative lagoon (No.2), aerated lagoon (No.3), mineralized refuse bioreactor (No.4) and catalysis iron inner electrolysis (No.5) of leachate treatment process in Shanghai was determined based on CellSense biosensor with E. coli. The results showed that the toxicity of the effluent in different treatment unites for landfill leachate increased during the treatment process due to the influence of matrix effect and intermediate toxic products of refractory organic matters. The toxicity of the effluent from No.1 to No.5 unites are 90% (EC10), 80% (EC30), 60% (EC50), 80% (EC50) and 2% (EC50), respectively. This showed no significant correlation with their corresponding COD and ammonia nitrogen concentrations.
Wang
Xue-Jiang
XJ
State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China. wangxj@tongji.edu.cn
Zhang
Feng-Hua
FH
Wang
Hong
H
Zhao
Hong-Ning
HN
Zhao
Jian-Fu
JF
Xia
Si-Qing
SQ
D019149:Bioreactors; D015374:Biosensing Techniques / Q000379:methods*; D004784:Environmental Monitoring / Q000379:methods*; D004926:Escherichia coli / Q000187:drug effects; D009930:Organic Chemicals / Q000032:analysis / Q000633:toxicity*; D012037:Refuse Disposal / Q000379:methods*; D012722:Sewage; D014874:Water Pollutants, Chemical / Q000032:analysis / Q000633:toxicity*
D009930:Organic Chemicals; D012722:Sewage; D014874:Water Pollutants, Chemical