摘要
[目的]研究一种适合我国国情的低耗、高效、绿色的人工湿地生态修复技术,以更好地处理中小城镇污水,拓展人工湿地的绿色生态功能。[方法]采用模拟人工湿地系统,取浙江省金华市孝顺镇生活污水,在每轮湿地系统中水力停留7 d,考察进水水质及出水水质中总磷(TP)、总氮(TN)和化学需氧量(COD)的变化情况,进行湿地基质和植物的筛选。同时,对这几种基质和植物进行搭配组合,筛选出适合处理金华市孝顺镇污水的最佳组合,并进行景观设计研究。[结果]融合景观设计后的湿地系统TP去除率为71.23%,TN去除率为78.08%,COD去除率为71.70%,处理效果较好。[结论]结果表明,从上到下依次为碎石、石灰石、煤渣的基质搭配组合加上美人蕉+茭白的植物搭配组合,进行景观设计后,去污能力最优。
[Objective] To study a kind of green low-consumption and high-efficiency artificial wetland ecological restoration technology suitable for China＇s national conditions to better deal with small and medium-sized urban sewage and extend green ecological function of artificial wetlands. [Method] By using simulated artificial wetland system,domestic sewage from Xiaoshun Township,Jinhua City,Zhejiang Province was treated for 7 d in each turn of wetland system,and the changes of total phosphorus（ TP）,total nitrogen（ TN） and chemical oxygen demand（ COD） in the influent and effluent water were analyzed. Meanwhile,wetland matrices and plants were selected and then matched to select the optimal combination suitable for processing domestic sewage from Xiaoshun Township in Jinhua City,and then landscape design was researched. [Result] The wetland system had a better processing efficiency,and the removal rate of TP,TN,and COD from the domestic sewage was 71. 23%,78. 08%,and 71. 70% respectively. [Conclusion] The matrix combination of macadam,limestone and coal cinder from top to bottom as well as the plant allocation of canna and Zizania aquatica has the best capacity to remove pollutants from the sewage after landscape design.
出处
《安徽农业科学》
CAS
2016年第19期57-60,共4页
Journal of Anhui Agricultural Sciences
基金
金华市科学技术研究计划项目(2013-3-032)
