含氯代烃废水的生物毒性与处理方法探讨  

Discussion on the Bio-toxicity and Treatment of Wastewater with Chlorinated Hydrocarbon

作　　者：贺启环[1] 

机构地区：[1]南京理工大学化工学院环境科学与工程系,江苏南京210094

出　　处：《污染防治技术》2010年第1期7-10,21,共5页Pollution Control Technology

摘　　要：卤代烃是在有机物分子中的碳原子上,用卤素基团取代出氢的卤化产物,这个变化使有机物的生物毒性增大,这是卤素有机态毒性的体现;另一方面,卤代烃在生物水解或降解过程中,又会重新释放出带正电荷的卤素,与水结合后成为次卤酸而具有无机态卤素的生物毒性。作者在提出这种卤代烃生物毒性学说的基础上,提出了一系列在含卤代烃废水预处理与生物处理中的解毒、降毒、抗毒和减荷及提高可生化性的措施,以提高含卤代烃废水的综合处理效率。When the Hydrogen in the organic molecule＇s carbon group is substituted by halogen, the compound is called halohydrocarbon. This substitution enhances the bio - toxicity of the organic compound （ the toxicity of organic halogen）. On the other side, halohydrocarbon can release electropositive halogen again in the process of bio - hydrolysis or bio - degradation, the released electropositive halogen can combine with water and show inorganic halogen bio - toxicity. Based on the ＂halohydrocarbon＇s bio - tox- icity＂ theory, this paper put forward a series of methods on detoxification, decreasing toxicity, anti - toxification and improving the biodegradability in the process of pretreatment and bio - treatment to improve the comprehensive treatment efficiency of wastewater with halohydrocarbon.

关 键 词：卤代烃 氯代有机物 废水处理 生物毒性 

分 类 号：X131.2[环境科学与工程—环境科学]