对南四湖人工湿地生物降解能力的研究

Research on the Biodegradation of Man-made Wetland in South Four Lakes

通过建立小型人工湿地,进行污水处理实验,监测不同水生植物、不同年份、不同月份对污水的 pH、COD、BOD5、TN、TP、NH3-N的去除效果。实验结果表明,人工湿地中试系统作为一种生态污水净化技术已趋于成熟,具有较高的污染负荷去除率,显示出具有巨大的优越性。但其净化效率仍然受到气候、温度、土壤、植物种类等因素的影响。

By setting up a piece of man-made wetland on a small scale, the test carried out the experiment on sewage treatment, checked and measured the removing effect of different water plants on pH, COD, BOD,TN ,TP ,NH3-N existing in sewage in different years and in different months. The results of the experiment showed： as a kind of ecological technology for purifying sewage, the testing system of man-made wetland had become ripe with a higher removal rate of pollution load. The system had also shown its great advantages. But its purification efficiency was still influenced by these factors such as climate, temperature, soil and the kinds of plants.