摘要
2007年6月,构建并运行水平潜流人工湿地,对西安市最大的人工湖——兴庆湖的严重富营养化水体进行净化,以实现该湖生态系统的长期恢复。结果表明,水平潜流人工湿地对水体中的化学需氧量(COD)、氨氮(NH3-N)、总氮(TN)、总磷(TP)和固体悬浮物(SS)的平均去除率分别为84.2%、53.8%、47.9%、73.3%和86.6%,由于硝化和反硝化过程不足,导致人工湿地对水体中氮的去除率较低。提出构建多级湿地循环处理系统,以改进和完善处理城市湖泊污染水体的人工湿地技术。
The purification of the largest artificial lake—Xingqinghu Lake in Xi＇an City, which has suffered from serious pollution and in high risk of eutrophication by horizontal subsurface flow constructed wetlands in June of2007. The results showed that average removal of 84.2% for chemical oxygen demand content, 53.8% for ammonia nitrogen content, 47.9% for total nitrogen content, 73.3% for total phosphorus content and 86.6% for suspended solid content could be achieved. Relatively, the low removal of nitrogen was due to the lack of nitrification and denitrification processes. Accordingly, the configuration improvement of the treatment wetland system has been proposed and discussed in the paper. Finally, to construct wetland systems with multistage circulation treatment functions for improvement and perfection of constructed wetland technology to treat the polluted water of urban lake.
出处
《湿地科学》
CSCD
北大核心
2015年第2期207-210,共4页
Wetland Science
基金
陕西省教育厅专项科研项目(11JK0762)
宝鸡市科学技术研究发展计划项目(12SF2-3)
宝鸡文理学院院级重点项目(ZK12096)资助
关键词
人工湿地
城市湖泊
污水处理
constructed wetland
urban lake
wastewater treatment
