摘要
Comprehensive evaluation of effluents is of great importance for environmental impact assessment.In this paper,three kinds of chromeplating effluents were characterized by determining pH,conductivity and COD values.The toxicity of these effluents to Photobacterium phosphoreum was also determined.According to the toxicity category standard,their order of toxicity intensity was obtained.Although there was a correlation between EC50,COD and conductivity to some extent,it was inappropriate to represent quantitatively the damages to organisms only by the physico-chemical properties of the chromeplating effluents.It was indicated that a combination of physico-chemical characterization and comprehensive toxicity analysis could provide the correct information for effluent discharge standards.In this study,causative toxic compound types in three kinds of electroplating effluents were also analyzed preliminarily according to conductivity,COD and EC50 values.It can provide the basis for toxicity identification evaluation of electroplating effluents.
Comprehensive evaluation of effluents is of great importance for environmental impact assessment. In this paper, three kinds of chromeplating effluents were characterized by determining pH, conductivity and COD values. The toxicity of these effluents to Photobacterium phosphoreum was also determined. According to the toxicity category standard, their order of toxicity intensity was obtained. Although there was a correlation between EC50, COD and conductivity to some extent, it was inappropriate to represent quantitatively the damages to organisms only by the physico-chemical properties of the chromeplating effluents. It was indicated that a combination of physico-chemical characterization and comprehensive toxicity analysis could provide the correct information for effluent discharge standards. In this study, causative toxic compound types in three kinds of electroplating effluents were also analyzed preliminarily according to conductivity, COD and EC50 values. It can provide the basis for toxicity identification evaluation of electroplating effluents.
出处
《化工学报》
EI
CAS
CSCD
北大核心
2007年第11期2911-2914,共4页
CIESC Journal
基金
教育部留学回国人员科研启动基金项目~~
关键词
镀铬废水
发光菌
毒性分析
毒性分级
chromeplating effluents
Photobacterium phosphoreum
toxicity analysis
toxicity evaluation
