Water quality performance of a batch-type stormwater detention basin
Water quality performance of a batch-type stormwater detention basin
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DOI：
10.2175/106143007x220842
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发表时间：
2008-02-01
影响因子：
3.1
通讯作者：
Barrett, Michael E.
中科院分区：
文献类型：
--
作者：
Middleton, John R.;Barrett, Michael E.
本研究的目的是改造一个扩展的滞留盆地，以提供雨水径流的批量处理。一种自动阀门/控制器被开发并放置在德克萨斯州奥斯汀的一个滞留水池的出水口上，它允许水质在水池中保持预设的时间长度。对改造后的进水和出水进行了总悬浮物（TSS）、营养物质、化学需氧量（COD）、总金属和溶解金属的监测。总金属、COD、总氮、总磷和TSS的去除率均有统计学意义，排放事件平均TSS浓度为7 mg/L， TSS去除率为91%。改造后的盆地比传统的延长滞留盆地有更好的污染物去除效果，与奥斯汀砂过滤器相当，奥斯汀砂过滤器是奥斯汀地区常见的结构性雨水处理系统。这种阀门也可以用来隔离有害物质的泄漏。
The objective of this research was to modify an extended detention basin to provide batch treatment of stormwater runoff. An automated valve/controller was developed and placed on the outlet of a detention basin in Austin, Texas, which allowed the water quality volume to be retained in the basin for a preset length of time. The influent and effluent of the modified basin were monitored for total suspended solids (TSS), nutrients, chemical oxygen demand (COD), and total and dissolved metals. Statistically significant removal of total metals, COD, total nitrogen, total phosphorus, and TSS was observed, with a discharge event mean TSS concentration of 7 mg/L and a TSS removal efficiency of 91%. The modified basin has substantially better pollutant removal than conventional extended detention basins and is comparable with that of Austin sand filters, which are a common structural stormwater treatment system in the Austin area. The valve also can be used to isolate hazardous material spills.