摘要
溴系阻燃剂(BFRs)作为一种新兴有机污染物,在生产和流通过程中不可避免地释放到环境中,对生态环境和人类健康构成严重威胁。对BFRs水环境污染现状、主要降解技术和毒性效应的最新研究成果进行了综述。BFRs在水环境中的分布具有来源依赖性,主要来源为生产场地和电子废物回收处置场地,目前在湖泊、河流和海洋等水环境中均能检测出BFRs。现有降解技术主要包括高级氧化技术、微生物降解技术、热解分离技术以及吸附技术等,其中高级氧化技术、热解分离技术和吸附技术降解速率快,但成本高;微生物降解技术成本低、污染少,但降解不彻底。BFRs主要通过诱导细胞产生活性氧、损伤细胞膜、改变与抗氧化防御相关的生物反应及神经损伤等对生物体造成损害。未来仍需对BFRs高效处理技术及低浓度BFRs对生物体长期暴露毒理效应等方面开展探索和研究,以期为开发高效、经济的BFRs降解技术和评估BFRs生态环境风险提供思路。
Bromine based flame retardants(BFRs),as an emerging organic pollutant,are inevitably released into the environment during manufacturing and circulation processes,posing a serious threat to the ecological environment and human health.The current situation of water environmental pollution,the main degradation technologies,and the latest research findings on the toxicological effects of BFRs were reviewed.The distribution of BFRs in the aquatic environment was source-dependent,and the predominant sources encompassed production regions and e-waste recycling and disposal facilities.Currently,BFRs could be detected in aquatic environments such as lakes,rivers,and oceans.The existing degradation technologies mainly included advanced oxidation technology,microbial degradation technology,pyrolysis separation technology,and adsorption technology.Advanced oxidation technology,pyrolysis separation technology,and adsorption technology had fast degradation rates but high costs.Microbial degradation technology had low cost and less pollution,but the degradation was incomplete.BFRs mainly caused damage to organisms by inducing the production of reactive oxygen species,damaging cell membranes,altering biological reactions related to antioxidant defense,and causing neurological damage.In the future,it was still necessary to explore and research on efficient treatment technologies for BFRs and the long-term toxicological effects of low concentration BFRs on organisms,to provide ideas for the development of efficient and economical BFRs degradation technologies and the assessment of ecological environmental risks of BFRs.
作者
卫昆
赵丽嫦
陈慕羽
黄皖唐
方嘉声
唐少宇
WEI Kun;ZHAO Lichang;CHEN Muyu;HUANG Wantang;FANG Jiasheng;TANG Shaoyu(School of Ecological Environment and Architectural Engineering,Dongguan University of Technology,Dongguan523000,China;School of International Studies,Guangdong University of Education,Guangzhou 510303,China;Ecological Environment Engineering Technology Research and Development Center,Dongguan University of Technology,Dongguan 523000,China)
出处
《工业水处理》
CAS
CSCD
北大核心
2024年第9期9-22,共14页
Industrial Water Treatment
基金
国家自然科学基金项目(41907294)
广东省基础与应用基础研究基金项目(2020A1515110222)
东莞市科技特派员项目(20221800500622)。
关键词
溴系阻燃剂
水环境
降解技术
毒理效应
brominated flame retardant
water environment
degradation technology
toxicological effect
