摘要
随着塑料制品的广泛使用,酞酸酯的污染越来越引起人们的广泛关注。目前,DBP(邻苯二甲酸二丁酯)和DEHP(邻苯二甲酸二异辛酯)已成为全球最普遍的污染物之一。报告了复合垂直流构建湿地对含酞酸酯(DBP等)的污水污染的去除效果,以及湿地去除酞酸酯的基质微生物和酶方面的净化机理。具体结果如下:复合垂直流构建湿地对酞酸酯污染具有较好的净化效果,去除率高达99.9%以上;构建湿地对酞酸酯的净化主要发生在氧气含量相对较多的下行流池,上行流池的净化作用相对较差;同时分层实验还发现,构建湿地的净化作用主要集中在湿地上层基质中。通过研究,为进一步研究利用构建湿地处理酞酸酯污染提供了有益的参考。
With plastics goods widely used,the pollution of phthalate esters is becoming more and more serious.DEHP and DBP have become one of the most ordinary pollutants in the world.In this paper,microorganism and enzyme mechanisms of the integrated vertical constructed wetlands(IVCW)treating PAEs(DBP)were studied.The results are as following:IVCW could remove DBP effectively with the removal rate being as high as99.9%.The removal of DBP probably took place mainly in the downflow tank of the IVCW,while the removal in the upflow tank was not ideal.Meanwhile,it was found that the treatment occurred on the top layer of IVCW.It is of reference for the future researchs on the utilization of the IVCW in order to remove PAEs pollution.
出处
《长江流域资源与环境》
CAS
CSSCI
CSCD
北大核心
2003年第3期254-258,共5页
Resources and Environment in the Yangtze Basin
基金
国家杰出青年科学基金项目(39925007)
中国科学院知识创新工程重要方向项目(KSCX2-SW-102)
欧盟国际合作项目(ERBICl8CT960059)支持.
关键词
生物降解
湿地
酞酸酯
基质微生物
环境污染物
酶
污染治理
Phthalic Acid Esters(PAEs)
Integrated Vertical Constructed Wetlands(IVCW)
microorganisms
substrate enzyme
