【摘要】 构建特定形式的人工湿地,研究其对混有少量生活污水的道路雨水的处理效果。湿地处理量为4 m3/d,面积为40 m2,水力停留时间为6 d。水体从进水管进入湿地,经芦苇和80 cm厚、粒径为0.06～2 mm的沙砾共同作用后,通过下面20 cm厚的砾石集水层中的集水管收集后进入渗井。研究表明,试验区的道路雨水经人工湿地处理后,出水水质较好,满足北京市地方标准DB11/307—2005的要求,且湿地抗污染物冲击的能力较强。更多还原

【Abstract】 A constructed wetland with treatment capacity of 4 m3/d,area of 40 m2 and HRT of 6 d was established to treat road rainwater mixed with a small amount of domestic sewage.Water entered the wetland through an inlet pipe.After being purified by bulrushes and sand with thickness of 80 cm and size of 0.06 to 2 mm,water entered the infiltration well through catchment pipe which was located at the 20 cm gravel catchment layer.After road rainwater in the experimental area was purified by the constructed wetland,the effluent quality could meet the Discharge Standard of Water Pollutants(DB 11/307-2005).The system showed a higher resistance to pollutant load impact.更多还原