风车草泡板型浮岛在污染河水中的脱氮试验  

Analysis of Cyperus alternifolius foam floating islands on nitrogen removal in polluted rivers

作　　者：罗固源[1] 吴松[1] 肖华[1] 韩金奎[1] 许晓毅[1] 郑剑锋[1] 

机构地区：[1]重庆大学三峡库区生态环境教育部重点实验室,重庆400030

出　　处：《重庆大学学报（自然科学版）》2008年第10期1169-1173,共5页Journal of Chongqing University

基　　金：重庆市科技攻关计划资助项目(CSTC;2006AB7020)

摘　　要：介绍了泡板型浮岛在污染河水中的脱氮试验。实验表明浮岛植物的脱氮效能依次为:风车草>香根草>菖蒲。研究了去除负荷与覆盖率及进水负荷之间关系,结果表明以30%覆盖率为分界点,去除负荷与覆盖率之间的关系有明显的变化;去除负荷与进水负荷之间满足二次函数关系。最后得出了实验条件下的最适宜的覆盖率和进水负荷。We conducted a nitrogen removal test using floating islands in polluted rivers. The results show the nitrogen removal efficiency of Cyperus alternifolius exceeds that of Vetiveria zizanioides which in turn is greater than flagleaf. The relationship among removal loading, coverage rate and inflow loading was studied. The boundary of coverage rate was 30%. There was a significant change in the relationship between removal loading and coverage rate. The relationship between removal loading and inflow loading follows a quadratic function. The appropriate coverage rate and inflow loading were found based on this test.

关 键 词：浮岛 去除负荷 脱氮 风车草 

分 类 号：X703.1[环境科学与工程—环境工程]