摘要
水源地长期污染严重,微量有机物检出率增加,水质安全性下降,以及岸坡传统硬质化护砌导致生态恶化,为此提出以新型环保材料生态混凝土构建特定岸坡生态系统改善水源水质的研究方法.中试实验结果表明,停留时间为6 d时,水中阿特拉津、邻苯二甲酸二甲酯、邻苯二甲酸二(2-乙基己基)酯、邻苯二甲酸二乙酯、邻苯二甲酸二丁酯的去除率分别为70.5%、57.7%、72.4%、62.4%和45.1%,水样有机物图谱峰数与黄浦江原水相比减少23个,峰总面积降低36.8%;相同条件下对照水库(岸坡硬质护砌),5种微量有机物的去除率仅为40.2%、42.9%、54.8%、52.0%和16.2%.以生态混凝土为载体构建的水源地特定岸坡生态系统在微生物和绿色植物等多因素协同作用下,使水中微量有机物去除效果明显,对改善水源水质和生态修复具有积极意义.
An experimental model was made on the improvement of sources water quality in the Huangpu River through the construction of a special aquatic ecosystem using ecological embankments.A 6 d retention time（RT） gave the highest removal rate capacity and benefit of micro-organic pollutants.Under these conditions,the removal rates were 70.5% atrazine,57.7% dimethyl phthalate,72.4% phthalic acid bis（2-ethylhexyl） ester,62.4% diethyl phthalate,and 45.1% dibutyl phthalate.The varieties of micro-organic pollutants reduced from 51 to 28. In contrast,in the control pool with hard embankment,the removal rates only reached 40.2% atrazine,42.9% dimethyl phthalate,54.8% phthalic acid bis （2ethylhexyl） ester,52.0% diethyl phthalate,and 16.2% dibutyl phthalate.Through coordination of all constituent elements of special aquatic ecosystem,significant amounts of micro-organic pollutants were removed.
出处
《环境科学》
EI
CAS
CSCD
北大核心
2009年第10期2924-2929,共6页
Environmental Science
基金
江苏省水利科技项目(2006034)
国家高技术研究发展计划(863)项目(2002AA601130)
关键词
特定生态系统
生态护砌
微量有机物
水源地
special ecosystem
ecological embankments
micro-organic pollutants
water resources
