人工湿地中不同植物对生活污水的净化研究

本文阐述了不同植物在潜流人工湿地处理生活污水的研究中对不同污染物的净化效果,经分析表明：第2个单元潜流湿地中菖蒲对TP及浊度的净化效果较好,去除率达到了60%和70%;第4、第5单元美人蕉和芦苇对于NO3--N的去除率达到12.2%和11.9%;第5单元芦苇对TN的净化效果较好,去除率达到15%;而5个单元对于CODmn的净化效率相当,第2单元对各指标都有较高的去除率。另外,该潜流人工湿地对滏阳河水总体净化效果较好,TP、TN、NO3--N、CODmn、以及浊度的出水质量浓度分别为0.01 mg/L、3.1 mg/L、3.5 mg/L、2.7 mg/L和0.085度。按照GB3838-2002,出水水质除TN低于Ⅴ类水标准外,其余指标均达到Ⅱ类水标准。

Purification and study on domestic sewage of different plants in subsurface flow constructed wetland

The article mainly describes the purification effect of different plants to treat the domestic sewage in subsurface flow constructed wetland. According to the analysis, the irises in subsurface flow wetland have a good purification effect for TP and turbidity, and the removal rate reaches to 60% and 70%. The Canna and reeds in the fourth and fifth unit have a significant impact in purification, and the removal rate reaches to 12.2% and 11.9%. The reeds in the fifth unit have good purification effect for TN, and the removal rate reaches to 15%. The five units all play a considerable role on the purify of CODmn. Wherein, the second unit has a high removal rate in all indicators due to the influence of water quality. In addition, the subsurface flow constructed wetland has a good purification effect on Fuyang River, and the effluent concentration of TP, TN, NO3- -N, CODmn and turbidity are 0.01mg/L, 3. lmg/L, 3.5mg/L, 2.7mg/L and 0. 085 degree. According to GB3838 - 2002, TN is excepted to be below the V water standard, the other indicators of the effluent quality meets with Ⅱ water standard.