生态滤墙与仿生水草复合提升入库河段水质技术应用  

Application of Ecological Filter Wall and Bionic Water Grass for Improvement of Water Quality of Inflow Reach of the Reservoir

作　　者：张炜 叶新霞[2] ZHANG Wei;YE Xinxia(Hohai University Design Institute Co.,Ltd.,Nanjing210098,China;Jiangsu Surveying and Design Institute of Water Resources Co.,Ltd.,Yangzhou225127,China)

机构地区：[1]河海大学设计研究院有限公司,江苏南京210098 [2]江苏省水利勘测设计研究院有限公司,江苏扬州225127

出　　处：《净水技术》2022年第7期126-130,137,共6页Water Purification Technology

摘　　要：梁西河是大沙河草庙水源地进水通道,而大沙河草庙水源地李口涵闸入库河口区COD_(Mn)、氨氮和TP指标超标,极大地影响了大沙河草庙水源地保护区水质。该工程采用生态滤墙+仿生水草结合的综合处理技术,同时为保障泄洪需要,生态滤墙额外配置旋转系统,确保泄洪安全的同时保障水质达标。运行结果表明主要污染物COD_(Mn)、氨氮和TP的去除率为44.0%~60.4%、50.0%~66.7%和46.7%~70.0%,整体处理效果还是比较显著的,而且出水水质效果优于《地表水环境质量标准》(GB 3838—2002)III类,技术上是可行的,适合于需要行洪时河道的水质提升工程。同时,工程总投资费用为493.18万元,运行维护费用费用约为28.5万元/a,整体经济投资和运行费用是可行的。Liangxi River is the water inlet channel of Caomiao Water Source in Dasha River,while COD_(Mn),ammonia nitrogen and TP indices in the entrance area of Likou culvert of Caomiao Water Source in Dasha River exceed the standard,which greatly affects the water quality of Caomiao Water Source protection area in Dasha River.The project adopted the comprehensive treatment technology of ecological filter wall+bionic water and grass.At the same time,in order to meet the needs of flood discharge,the ecological filter wall was additionally equipped with a rotating system to ensure the safety of flood discharge and ensure that the water quality meet the standard.Results showed that the removal rates of COD_(Mn),ammonia nitrogen and TP were 44.0%~60.4%,50.0%~66.7%and 46.7%~70.0%,respectively.The overall treatment effect was quite significant,and the effluent quality was better than Class III water in Environmental Quality Standards for Surface Water(GB 3838—2002),which was technically feasible and suitable for the river water quality improvement project when flood discharge was needed.Meanwhile,the total investment cost of project was 4.9318 million yuan,and the operation and maintenance cost was about 285000 yuan every year.The overall economic investment and operation cost are feasible.

关 键 词：水质净化 生态滤墙 仿生水草 旋转系统 污染物指标 

分 类 号：X524[环境科学与工程—环境工程]