水中内毒素的浓度水平及去除效果研究进展  

Review on Concentration of Endotoxin in Water and its Removal Effect in Water Treatment Processes

作　　者：黄璜[1] 胡洪营[1,2] 吴乾元[2] 

机构地区：[1]清华大学环境学院环境模拟与污染控制国家重点联合实验室 [2]清华大学深圳研究生院国家环境保护环境微生物利用与安全控制重点实验室

出　　处：《环境卫生学杂志》2013年第3期273-277,共5页JOURNAL OF ENVIRONMENTAL HYGIENE

基　　金：自然科学基金重点项目(No.51138006)

摘　　要：本文综述了水中内毒素的浓度水平,比较了不同水处理工艺对内毒素的去除效果。国内外已有的研究表明,在地表水、饮用水、城市污水厂二级处理出水与深度处理出水(再生水)中,内毒素浓度分布的中位值依次是145、20.5、1 440、422 EU/mL,二级出水与深度处理出水中的内毒素浓度相对较高。在水处理工艺中,混凝沉淀过滤可去除内毒素,而生物活性炭工艺会导致内毒素浓度增加。氯消毒与紫外消毒对内毒素的去除率不稳定,最高仅20%左右,臭氧消毒对内毒素的去除效果较好,去除率最高可达74%。The levels of concentration of endotoxin in water were reviewed,and the removal efficiencies of endotoxin by different water treatment processes were compared.According to the previous studies,the median concentrations of endotoxin in surface water,drinking water,secondary sewage effluent and tertiary effluent were 145,20.5,1440,422 EU/mL,respectively.Secondary sewage effluent and tertiary effluent have relatively higher levels of endotoxin concentration.In the process of water treatment,coagulation and filtration can remove endotoxin while biological activated carbon process will result in the increase of endotoxin.Removal of endotoxin by chlorination or UV disinfection is instable,with the maximum removal efficiency of only about 20%.However,ozone disinfection is effective to remove endotoxin,with the maximum removal efficiency of 74%.

关 键 词：内毒素 地表水 饮用水 污水 再生水 去除 

分 类 号：X703[环境科学与工程—环境工程]