生物滞留设施中添加铁质对磷的去除效果

发布时间：2018-05-16 05:02

  本文选题：生物滞留设施 + 铁质　； 参考：《环境科学与技术》2016年S2期

【摘要】：城市地表径流是非点源污染的主要来源,磷作为主要污染物之一,被认为是水体富营养化的主要因素。生物滞留设施能有效通过沉淀、过滤、吸附以及生物过程达到对地表径流中污染物的处理。通过实验方法对比研究在生物滞留设施填料层中添加铁粉和纳米铁对磷的去除效果,讨论了铁质放置位置、采样时间以及材料种类对渗流中磷的去除效果的影响。通过对比放置在不同位置的去除率,得出铁质放置在中层对磷有较好的去除效果。通过将铁质放置在中层,研究了磷的去除率随时间的变化以及不同材料对磷的去除率的影响。
[Abstract]:Urban surface runoff is the main source of non-point source pollution, and phosphorus, as one of the main pollutants, is considered as the main factor of eutrophication. Biological retention facilities can effectively deal with pollutants in surface runoff through precipitation, filtration, adsorption and biological processes. The effects of iron powder and nanometer iron on phosphorus removal in the packed layer of biological detention facilities were studied by means of experiments. The effects of the location of iron, sampling time and material type on phosphorus removal in percolation were discussed. By comparing the removal rate of iron in different positions, it is concluded that iron placed in the middle layer has a better removal effect on phosphorus. The change of phosphorus removal rate with time and the effect of different materials on phosphorus removal rate were studied by placing iron in the middle layer.
【作者单位】： 四川大学水力学与山区河流开发保护国家重点实验室;
【基金】：国家自然科学基金(5151101496)
【分类号】：X52
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本文编号：1895548