建筑再生滤料在城市微污染水体人工湿地治理中的应用

Application of building regeneration filter material in the treatment of the urban micro-polluted water constructed wetland

将建筑再生滤料应用于城市微污染水体的人工湿地治理,通过对建筑再生滤料的粒径范围、比表面积及孔隙率等主要性能参数的优化控制,在实际进水满足GB 3838—2002《中华人民共和国地表水环境质量标准》Ⅴ类的条件下,最终出水CODCr、NH3-N质量浓度可稳定达到30.0、1.5 mg/L以下,满足地表水Ⅳ类的水质要求;项目对CODCr、NH3-N的去除率分别可达20%~40%、29%~33%,并可实现对建筑废弃料的资源化利用,具有良好的环境效益与社会效益。

The building regeneration filler was applied into the treatment of the urban micro-pollutedwaterconstructed wetland,and the main performance parameters such as particle size range,specificsurface area,porosity factor of the building regeneration filler were optimized and controlled.Under theactual water intake controlled to the Class V standard in Environmental quality standards for surfacewater of the People’s Republic of China(GB 3838-2002),mass concentration of CODCrand NH3-N of thefinal effluent could stably reach below 30.0 mg/L and 1.5 mg/L,which meet the requirements of Class IVstandards for surface water.The removal rates of CODCrand NH3-N were basically maintained in therange of 20%~40%and 29%~33%.This new application could realize the resource utilization of buildingwaste materials,which have both good environmental and social benefits.