人工快渗一体化设备用于人工湿地出水深度处理的应用研究

Application of Constructed Rapid Infiltration Integrated Equipment for Constructed Wetlands Wastewater Treatment

针对秦台河人工湿地出水水质情况,本研究结合人工快渗技术优势,采用人工快渗一体化设备深度处理人工湿地出水。通过实际运行监测可知,当进水污染物浓度相对较高时,PFS(19%)投药量为6 L/d,人工快渗一体化设备对COD、NH_3-N、TP的平均去除率分别为70%、50%、85%,出水能稳定达到地表水Ⅳ类水质标准;当进水污染物相对较低时,在投药量减半的情况下,人工快渗一体化设备对COD、NH_3-N、TP的平均去除率有下降趋势,分别为59%、35%、68%,但出水仍能稳定达到地表水Ⅳ类水质标准。本研究为人工湿地出水深度处理提供工程应用依据。

According to the water quality of Qin Tai river Constructed Wetland, combined with the advantage of constructed rapid infiltration technique,this study is to motoring application of constructed rapid infiltration integrated equipment for constructed wetland. The conclusion as we know, When the concentration of influent pollutants is relatively high, and the dosage of polyalumirlillm sulfate(19 %) is 6L/d, the average removal rates for chemical oxygen demand(COD), Ammonia nitrogen(NH3-N)and Total phosphorus(TP) were 70 %, 50 %, 85 %, respectively.and the pollutants of effluent can reached the Ⅳstandard of "Environmental quality standard of surface water(GB3838-2002)"steadily;when the influent pollutant is relatively low, and the dosage of PFS(19 %) is reduced to half, the average removal rates of COD, NH3-N and TP have a descendent tendency, which were 59 %, 35 %, 68 %, respectively. but the effluent can still reached the Ⅳstandard of "Environmental quality standard of surface water(GB3838-2002)"steadily. This study can provides engineering application basis for advanced treatment of constructed wetland effluent.