人工强化改善滞流景观水体水质的研究  

Improvement of Water Quality of Non-flowing Landscape Water Body by Artificially Enhanced Methods

作　　者：王金丽[1] 颜秀勤[1] 郑兴灿[1] 宁冰[1] 

机构地区：[1]中国市政工程华北设计研究总院有限公司,天津300074

出　　处：《中国给水排水》2014年第19期84-87,共4页China Water & Wastewater

基　　金：国家水体污染控制与治理科技重大专项(2012ZX07308-002)

摘　　要：研究了几种人工生态强化净化技术对滞流景观水体水质的改善效果。结果显示:碳素纤维生态草表面可形成稳定的生物膜,对水质的改善效果最好,对NH3-N、TN、TP和COD的去除率分别可达到94%、92%、92%和85%,生态草对浮游藻类繁殖和水体色度增加均有较好的抑制作用,并且该抑制作用随着其密度的增加而增强;间歇曝气充氧法对水中氮、磷及色度的去除效果较好,但与其他方法相比,曝气扰动会使水中COD浓度增加,还可能会促进藻类的繁殖;美人蕉浮岛对氮、磷及色度的去除作用低于生态草和间歇曝气法,但对COD的去除和抑藻效果均好于间歇曝气法。The maintenance and improvement effects of non-flowing landscape water body by sev- eral artificially enhanced methods were investigated. The results showed that a stable biofilm could be formed on the surface of carbon-fiber ecological grass, and it had the best performance in the improve- ment of water quality. The removal rates of NH3 - N, TN, TP and COD were 94% , 92% , 92% and 85% , respectively. The ecological grass could inhibit the reproduction of floating algae and the increase of water color, and the inhibition effect was enhanced with the increase of the density of ecological grass. Intermittent aeration method had good effect on the removal of nitrogen, phosphorus and color. Compared to other methods, aeration disturbance could increase COD concentration and promote algae reproduction. The aquatic Canna floating island had a lower removal efficiency of nitrogen, phosphorus and color than ecological grass and intermittent aeration method, but a higher removal efficiency of COD and algae than intermittent aeration method.

关 键 词：滞流景观水体 水质改善 生态草 间歇曝气 美人蕉浮岛 

分 类 号：X52[环境科学与工程—环境工程]