坡岸截留强化处理设施对农业面源污染物的去除

发布时间：2018-01-18 01:23

本文关键词：坡岸截留强化处理设施对农业面源污染物的去除　出处：《中国给水排水》2016年15期 　论文类型：期刊论文

【摘要】：对坡岸截留强化处理设施处理农业面源污染开展了中试研究。结果表明,坡岸截留强化处理设施中基质有效高度增加30 cm会使COD、TN的去除率分别增加7.28%、10.65%,但是对TP、SS的去除率增加不明显;而在坡岸截留强化处理设施中种植较长根系的植物使其拦截、吸附有机物和氮、磷的作用加强,对COD、TN、NH_4~+-N、TP的去除率分别增加了11.72%、18.91%、17.71%、30.18%,但是对SS的去除率增加不明显;坡岸截留强化处理设施在长为3.3 m、基质高度为60 cm、砂土高度为20 cm、种植金鸡菊的条件下,对径流污染物的净化效果较好,对COD、TN、NH_4~+-N、TP的去除率分别为46.94%、59.28%、65.43%、83.58%。
[Abstract]:A pilot study was carried out on the treatment of agricultural non-point source pollution by enhanced slope bank interception treatment facilities. The results showed that 30 cm increase of effective height of matrix in slope bank interception and reinforcement treatment facilities would result in COD. The removal rate of TN increased 7.28% and 10.65% respectively, but the removal rate of TPSS was not obvious. The plant with long root system was planted in the slope bank interception and intensive treatment facility, and the adsorption of organic matter, nitrogen and phosphorus was strengthened. The removal rate of TP increased by 11.72% and 18.91%, 17.71% and 30.18%, respectively, but the removal rate of SS was not significantly increased. At the condition of 3.3 m long, 60 cm substrate height and 20 cm sandy soil height, the enhanced treatment facilities can purify runoff pollutants better and COD. The removal rates of NH _ 4 ~ -NN _ (TP) were 46.94 and 59.28 respectively.
【作者单位】：同济大学长江水环境教育部重点实验室;中南建筑设计院股份有限公司;
【基金】：国家科技支撑计划项目(2012BAJ21B06-04)
【分类号】：X71
【正文快照】： 湖北武汉430071)目前,随着面源污染对水体的影响日益凸显,国内外对面源污染控制的重视程度越来越高,且多采用生态工程技术,主要有缓冲带技术[1]、人工湿地处理技术[2]、多水塘技术[3]、土壤渗滤技术[4]、土壤促渗技术[5]等。其中,缓冲带技术与人工湿地技术在农业面源污染控制

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