3个荷花品种对污水中TN·TP的净化效果

Study on Purification Effect of TN and TP in the Waste Water by Three Nelumbo nucifera

[目的]研究荷花对污水的净化效果。[方法]选取粉荷点晕、玉堂春和鹤冠红3个荷花品种为研究对象,研究这3种荷花在污水中的生长状况及其对污水中总氮(TN)、总磷(TP)的净化效果。[结果]粉荷点晕、玉堂春和鹤冠红对污水均有较好的适应性,且均有较好的污水净化能力。3种荷花对污水中TN的去除率分别为65.1%、67.2%和70.5%;对TP的去除率分别为93.5%、96.8%和96.8%;去除率均大于无植物的对照。[结论]利用这3个荷花品种净化污水具有一定可行性。

[Objective]To study the purification effect of Nelumbo nucifera on sewage.[Method]Taking three Nelumbo nucifera such as Paeo-niaceae, Heguanhong and Yutangchun as research objects.The growth status of three plants and their purification effect on TN, TP in waste water were discussed.[ Result] The results showed that the three plants had good adaptability and purification capacity in waste water.The three plants on the removal rate of TN in waste water were 65.1%, 67.2%and 70.5%respectively ,the removal rate of TP were 93.5%, 96. 8% and 96.8% respectively.The removal rates was greater than the control group without plants.[Conclusion]This experiment fully demon-strates that it is feasible to use these three NElumbo nucifera to purify the waste water.