生产废水回用对常规净水工艺去除有机农药的影响  

Influence of wastewater recycle on organic pesticides removal in traditional drinking water treatment processes

作　　者：廖仁华 李伟[1] 段晋明[1] 

机构地区：[1]西安建筑科技大学环境与市政工程学院,西安710055

出　　处：《环境工程学报》2016年第7期3603-3606,共4页Chinese Journal of Environmental Engineering

基　　金：国家自然科学基金资助项目(51308437);陕西省教育厅科研计划项目(2013JK0980);陕西省博士后科学基金项目

摘　　要：通过小试实验,研究了生产废水直接回用对常规净水工艺各处理单元去除有机农药的影响。结果表明,尽管生产废水直接回用能够显著提高浊度和UV_(254)的去除率,但对有机农药去除的影响差异较大。对于具有较大正辛醇/水分配系数(lgK_(ow))的农药,生产废水回用能够提高其去除效果,而对于lgK_(ow)较小的有机农药,生产废水直接回用对其去除效果没有显著影响;另外,由于生产废水本身含有一定浓度的该类农药,长期回用可能会引起出水中该类物质的富集现象。The effects of direct-recycling of wastewater on the removal of pesticides in a conventional water treatment process were evaluated using a laboratory-scale prototype treatment device. The results showed that,although the recycling of wastewater improved the turbidity removal and reduction of UV_（254） absorbance,a significant difference was observed between different kinds of pesticides. The recycling of wastewater enhanced the removal of pesticides with high lgK_（ow） values,while it has almost no effect on the removal of those pesticides with low lgK_（ow） values. Besides,these pesticides could accumulate in the treated water after long-time recycling operations,since the pesticides contained in recycled wastewater.

关 键 词：常规净水工艺 生产废水回用 有机农药 

分 类 号：X703.1[环境科学与工程—环境工程]