污水毒性削减的工艺研究进展

工农业生产排放的污水及城市污水中都含有有毒有机物且种类繁多,有些可能含量并不高但对生态环境的危害却不容忽视。目前污水排放标准中很少有污水毒性削减的相关规定,随着人们生活水平的提高以及环境意识的增强,有毒有机物对水环境的污染将越来越受到人们的关注。文中综述了国内外污水毒性削减的相关工艺技术,包括物化、化学、生物处理几方面,并展望了未来的发展方向。

Progresses in Study of Technology for Reduction of Toxicity of Waste Water

The wastewater discharged by industrial and agricultural production as well as municipal wastewater contain many kinds of toxic organic matters. The contents of some of the toxic organic matters may not be high but the harm they bring to the ecological environment may not be ignored. At present, there exist very few provisions concerning the reduction of the toxicity of wastewater in the standards for the discharge of wastewater. With the improving of people's living level and the strengthening of their environmental consciousness, more and more attention of people will be paid to the pollution of water environment by toxic organic matters. Technologies in China and outside China concerning the reduction of the toxicity of wastewater, in the fields of physiochemical treatment, chemical treatment and biological treatment, are summarized in this paper, with the orientation of future development forecast.