不同处理工艺对牛仔布生产废水中壬基酚去除效果研究  

Removal of nonylphenol in three typical denim dyeing wastewater treatment processes

作　　者：周自坚[1,2,3] 许振成[1] 虢清伟[1] 崔恺[1,3] 王丽[1] 

机构地区：[1]环境保护部华南环境科学研究所,广州510655 [2]桂林理工大学,桂林541004 [3]湖南农业大学,长沙410128

出　　处：《给水排水》2014年第5期134-138,共5页Water & Wastewater Engineering

基　　金：国家水体污染控制与治理科技重大专项(2012ZX07206-002)

摘　　要：壬基酚(NP)作为非离子表面活性剂壬基酚聚氧乙烯醚(NPEOs)的降解产物,由于具有的内分泌干扰特性备受关注。研究了印染废水处理中普通活性污泥法、氧化沟以及接触氧化3种工艺对废水中壬基酚的去除效果。结果表明:泥龄较短的处理工艺对壬基酚具有明显的去除效果,印染废水的高碱性和其含有的特殊染料对壬基酚去除没有产生负面影响;其中普通活性污泥法去除率较好,平均去除率为91%,其次为氧化沟工艺,平均去除率为80%,接触氧化工艺去除率偏低,仅为41%,接触氧化法相对较长的泥龄不利于壬基酚的去除。Nonylphenol （NP）, an endocrine biodegradation product of nonylphenol ethoxylates （NPEOs）, for the massive use of the latter in the denim dying plants is commonly found in the a- quatic environment receiving the wastewater discharged from them. The removal capability of three typical denim dyeing wastewater treating processes on NP was investigated in the study, which in- clude aerobic activated sludge, oxidation ditch, and contact oxidation process. The results showed that the process with shorter sludge retention time（SRT） performed more well than the process with longer SRT. The high pH and the special dyes in the wastewater had no effect on the removal of NP. The aerobic activated sludge process achieved a removal ratio of NP about 91 %, and the oxi- dation ditch process ranked the second with the average ratio about 80% and the contact oxidation tank with the longest SRT got the last rank with the ratio about 41%.

关 键 词：印染废水 壬基酚 水解酸化 接触氧化 活性污泥法 

分 类 号：X505[环境科学与工程—环境工程]