4种湿生植物对城市生活污水中氮磷去除效果的研究

摘要

Select the city life sewage outfall to the sewage flows into the Fen River buffer zone as the research area,with good growth status,large biomass of 4 kinds of aquatic plants as the study material,study the ef⁃fect of nitrogen and phosphorus removal in the city sewage.The test results show that,compared with the aver⁃age nitrogen and phosphorus content of plants,total nitrogen and total phosphorus concentrations were higher 4 kinds of wetland plants,including total nitrogen concentration in particular;After intensive plant communities fil⁃tered effluent samples nitrogen phosphorus concentration has not been kind of a sewage plant communities nitro⁃gen phosphorus concentrations,compared with a significant downward trend,indicating that the measured sewage plant communities in the buffer zone,total nitrogen,total phosphorus removal effect is remarkable.The trial offer Theoretical Ground for building protecting screening of hygrophyte,which can improve the sewage.%　　选取城市生活污水排污口至污水流入汾河的缓冲地带作为研究区域，以生长状况良好、生物量大的4种湿生植物作为研究材料，研究其对城市污水中氮磷的去除效果。试验结果表明，与植物的平均氮磷含量相比，4种湿生植物的总氮及总磷浓度明显偏高，其中总氮浓度尤其突出；经过密集植物群落过滤后的污水样中总氮和总磷浓度与未经过植物群落的污水样中的总氮和总磷浓度相比，有明显的下降趋势，说明所测的植物群落对缓冲地带的污水中总氮、总磷去除效果显著。该试验可为构建汾河流域生态治理污水的设想提供一定的参考依据。