摘要
目前人工湿地普遍占地面积较大,使其在景观水处理中的应用受到限制,针对这一问题,构建实验水池模拟人工湖,构建高效垂直流人工湿地,对其在高水力负荷下净化劣Ⅴ类富营养化池水进行了研究。结果表明,湿地系统在1.64 m3/(m2.d)和3.28 m3/(m2.d)的高水力负荷下净化池水均取得了良好效果,水力负荷提高到5.74 m3/(m2.d),湿地出现了一定程度的堵塞,净化效果相对较差。本实验系统净化池水的最佳水力负荷为3.28 m3/(m2.d),该水力条件下系统对浊度、CODC r、NH4+-N、TP的平均去除率分别为64.9%、41.0%、24.7%、58.5%。
Constructed wetland generally has large area at present, so its application in scenic water treatment is limited. Aiming at this problem, a pond was constructed to simulate artificial lake, and the bad V-class and eutrophic pond water purification by efficient vertical flow wetland at high hydraulic loadings was studied. The exporimental results showed that the wetland system had a good effect on the pond water purification at hydraulic loadings of 1.64 m^3/ （ m^2·d） and 3.28 m^3/ （ m^2·d）, but it was clogged and the performance got worse at the hydraulic loading of 5.74 m^3/ （ m^2·d） . The optimal hydraulic loading of the water purification by the wetland system was 3.28 m^3/ （m^2·d）, and the average removal rates of turbidity, CODcr、NH4^＋ -N and TP were 64. 9%, 41.0%, 24. 7% and 58. 5% respectively.
出处
《四川环境》
2008年第1期22-26,共5页
Sichuan Environment
关键词
人工湿地
高水力负荷
去除率
景观水
Constructed wetland
high hydraulic loadings
removal rate
scenic water
