摘要
总结了新兴污染物ICM在污水、地表水和饮用水等各种水环境中的污染现状及相应的生态风险;介绍了现有的ICM的去除工艺,包括高级氧化技术、辐射技术及生物降解转化技术等;讨论了ICM自身及其转化产物消毒副产物对环境的生态风险。认为目前对于各种水体中ICM含量、准确测定、有效去除及毒性评估方面还存在一定的问题。后续应着重研究污水、饮用水消毒过程中ICM形成I-DBP的机理,研究有效的去除ICM的工艺技术,尤其是去除惰性离子型ICM的处理工艺,从源头控制ICM,避免ICM形成I-DBP的危害。
The summarizes the pollution status and corresponding ecological risks of emerging pollutants ICM in various water environments such as sewage,surface water,and drinking water.In addition,it focuses on the existing ICM removal processes,including advanced oxidation technology,radiation technology,and biodegradation conversion technology.The ecological risks of ICM itself and its conversion products disinfection byproducts to the environment are discussed.It is believed that there are still some problems with the ICM content,accurate determination,effective removal,and toxicity assessment in various water bodies.The follow-up study should focus on the mechanism of ICM formation of I-DBP during the disinfection of sewage and drinking water,and the effective process technique of removing ICM,especially the treatment process of removing inert ionic ICM.The ICM should be controlled at the source to avoid the harm of ICM forming I-DBP.
作者
杨鹤云
李晓良
李晓琳
郑兴
YANG Heyun;LI Xiaoliang;LI xiaolin;ZHENG Xing(State Key Laboratory of Eco-Hydraulic in Northwest Arid Region,Xi'an University of Technology,Xi'an 710048,China)
出处
《水处理技术》
CAS
CSCD
北大核心
2022年第2期13-17,28,共6页
Technology of Water Treatment
基金
国家自然科学基金(51878555)
国家自然科学基金(50578020)。
关键词
碘代X射线造影剂
新兴污染物
污染现状
生态风险
去除工艺
iodinated X-ray contrast media
emerging pollutant
pollution status
ecological risks
removal process
