浮床植物水质净化能力及其影响因素研究  

The Water Purification Ability of Plants on Floating Bed and Its Influencing Factors

作　　者：张劲[1] 黄薇[1] 桑连海[1] 

机构地区：[1]长江科学院水资源综合利用研究所,武汉430010

出　　处：《长江科学院院报》2011年第12期39-42,共4页Journal of Changjiang River Scientific Research Institute

基　　金：科技部农业科技成果转化资金项目(2009GB23320484)

摘　　要：比较了12种常用浮岛植物的净水能力,并总结了影响生物浮岛净水能力的影响因素。结果表明:在12种植物中,红叶甜菜(Beta vulgaris var.cicla)对总氮的去除率最高,可达85.72%;空心菜(Ipomoea aquatica)对总磷的去除率最高,达到95.6%;美人蕉和空心菜对氨氮的去除率均接近100%。在生物浮岛技术应用中,应该根据不同水体、不同季节来选择不同的作物,并且,一般控制浮床的覆盖率在30%左右会达到最佳效果。研究结果为利用生物浮岛进行水体生态修复提供理论依据。The water purification ability of 12 plants commonly used on floating island are compared, and factors that influence the ability are summarized. The results reveal that red leave beet （Beta vulgaris var cicla） has the highest total nitrogen removal rate amounting to 85.72%, while water spinach （Ipomoea aquatica） keeps the highest total phosphorus removal rate of 95.6% , and water spinach （Ipomoea aquatica） and Canna （Canna indica） both are able to remove nearly all the ammonia nitrogen in the water. Moreover, the water body and the season should be considered when selecting plants on the floating bed, and a 30% floating bed coverage could help achieve the best effect. The results could provide theoretical basis for applying biological floating island to water ecological restoration.

关 键 词：生物浮岛 植物 水质 净水能力 影响因素 

分 类 号：X52[环境科学与工程—环境工程] X173