湿地式浮床去除营养盐的效果及特性研究  

Research on the effect and characteristics of nutrient removal by a new combined wetland floating bed

作　　者：寇海涛 彭惠靖 曹文平[1,2] 张卫民 吴浩[1] 李泽兵 曹建平[1] Kou Haitao;Peng Huijing;Cao Wenping;Zhang Weimin;Wu Hao;Li Zebing;Cao Jianping(School of Water Resources and Environmental Engineering,East China University of Technology,Nanchang 330013,China;Jiangsu LYG Environmental Protection Co.,Ltd.of Technology,Xuzhou 221111,China)

机构地区：[1]东华理工大学水资源与环境工程学院,江西南昌330013 [2]江苏莲洋港环保科技有限公司,江苏徐州221111

出　　处：《工业水处理》2020年第7期70-74,共5页Industrial Water Treatment

基　　金：江苏省自然科学基金(BK2011201);江西省研究生创新专项资金项目(YC2018-S344)。

摘　　要：为研究植物基质差异对湿地式浮床去除富营养化水体中氮磷的效果和特点,以塑料基质湿地式浮床(WFB-PS)为对照组,研究了丝竹基质的湿地式浮床(WFB-BS)去除营养盐的效果与特性。研究结果表明:WFB-BS对COD和TN去除率比WFB-PS平均高9.08%和10.02%,TP去除率差距不大。丝竹基质表面微生物膜较少,大量的细菌“穴居”在腐败后的丝竹孔洞中;而塑料基质表面缺乏足够的孔隙保护,使其表面微生物容易流失和失活。To study the nutrient removal efficiency and characteristics from eutrophic water due to the different plant substrates,a wetland floating bed with plastics substrates(WFB-PS)was used as controlled group,the nutrient remo-val efficiency and characteristics by using a wetland floating bed with bamboo substrates(WFB-BS)was investigated.The experimental results indicated that the COD and TN removal rate of the WFB-BS was 9.08%and 10.02%higher than that of the WFB-PS on average,the TP removal rate was similar.There was few microbial film on the surface of filamentous bamboos,and a large number of bacteria“cave houses”in the holes of filamentous bamboos after corrup-tion.However,there were a large number of biofilms on the surface of plastic matrix,which made the surface microo-rganism easy to lose and inactivate.

关 键 词：湿地式浮床 除磷脱氮 扫描电镜 水体修复 

分 类 号：X703.1[环境科学与工程—环境工程]