环境工程学报2013，Vol.7Issue(4)：1324-1330,7.
连片生态浮床对微污染河水的净化效果
Purification effect of ecological floating beds of flakiness connection in slightly polluted river water
摘要
Abstract
Miaojian creek, a tributary of Caoqiao River was selected as the experimental river, and Nym-phaea alba, Acorus calamus Linn and Oenanthe javanica (Blume) DC were used as the plants of floating beds for purifying the slightly polluted river water. The purification ability of ecological floating beds of flakiness connection was studied with the seasons' change and the relationship between the area and purification ability of ecological floating beds of flakiness connection. The results showed that the purification ability of plants changed with seasons and appeared a "U" type in autumn-winter-spring, but the corresponding changes of water quality presented an inverted "U" type. In certain nutrient loads and plant growth situation, and along the flow direction, the concentrations of nitrogen and phosphorus would decrease the increase of floating bed area -In spring, the removal rate of TN rose from 8.6% to 26. 7% with floating bed area' s increase in Acorus calamus Linn zone, and the TP increased from 17. 1% to 58.2%, then TN and TP removal rate in Oenanthe javanica (Blume) DC zone could reach up to 22. 0% and 28. 0% . Research indicated that the ecological floating beds of flakiness connection were one of the effective feasible methods to the river water quality improvement, and could provide the scientific basis for the nutrients control of rivers into the Taihu Lake.关键词
连片生态浮床/季节变化/浮床面积/净化效果Key words
ecological floating beds of flakiness connection/ seasonal change/ floating bed area/ purifying effect分类
资源环境引用本文复制引用
段金程,张毅敏,张红卫,高月香,晁建颖..连片生态浮床对微污染河水的净化效果[J].环境工程学报,2013,7(4):1324-1330,7.基金项目
国家"十一五"水体污染控制与治理科技重大专项(2008ZX07101-007) （2008ZX07101-007）
