摘要
为研究人工湿地对大连地区污染河水的净化效果,以大连复州河为例,实验构建了不同基质和不同植物的人工湿地。系统稳定运行两年时间,实验结果表明,作为人工湿地基质,砾石对SS、TP的去除效果强于碎石,碎石和砾石对COD、TN、NH3-N去除效果相差不大;作为人工湿地植物,芦苇对SS、TP的去除效果强于黄菖蒲,黄菖蒲对TN、NH3-N的去除效果强于芦苇,两者对COD去除效果相差不大;温度对人工湿地的COD、TN、NH3-N去除率影响较大,对TP去除率影响较小。
In order to study the purification effect of constructed wetland on polluted river water in Dalian area,the constructed wetlands with different subtracts and plants were constructed by taking Dalian Fuzhou River as an example.The system has been running steadily for two years.The experimental results show that,as the substrate of construct wetland,the removal efficiency of gravel on SS and TP is stronger than that of crushed stone,and there is little difference of removal effect between gravel and crushed stone on COD,TN and NH3-N;as the plants of constructed wetland,the removal efficiency of reed on SS,TP is stronger than that of Iris pseudacorus L.,and the removal effect of Iris pseudacorus L.on TN,NH3-N is stronger than that of reed.However there is no significant difference in the removal effect of COD between the two;temperature has a great influence on the removal rate of COD,TN and NH3-N in constructed wetland,but has little effect on the removal rate of TP.
出处
《吉林水利》
2021年第3期44-47,55,共5页
Jilin Water Resources
关键词
人工湿地
大连地区
污染河水
净化
constructed wetland
Dalian area
polluted river water
purification
