Bioremediation Characteristics of Eutrophic Water Using Two Floating Beds
An ecological floating bed was used to bioremediate an eutrophic surface water caused by excessive nitrogen.Plants (Canna sp.And Acorus calamus) coupled with rice straw, in a treatment designated as ”Plant+Rice”, were employed to bioremediate the water.This treatment was compared with plants alone (designated as ”Plant”), and with biofilm on polypropylene carriers alone (designated as ”B+P”).The experimental results document that Plant+Rice was superior to Plant or B+P for ammonia, nitrate, and total N removal.For Plant+Rice, the total N removal rate was 2.7 and 2.5 times higher;nitrate N was 9.1 and 4.1 times higher;and ammonia N was 2.1 and 2.2 times higher than B+P and Plant, respectively.Correspondingly, nitrite N transformation was also faster in the Plant+Rice than Plant or B+P treatments.The Canna sp.and A.calamus growth rates were higher in the Plant+Rice than in the Plant treatment due to more nutrients.
Eutrophication bioremediation ecological floating bed exogenous carbon source rice straw
Cao Wenping Wang Yinmei Zhang Yongming
Jiangsu Key Laboratory of Food Resource Development and Quality Safety, Xuzhou Institute of Technolo Department of Environmental Engineering, Shanghai Normal University, Shanghai 234002
国内会议
青岛
英文
227-231
2016-06-27（万方平台首次上网日期，不代表论文的发表时间）