5种水生植物的脱氮除磷效果比较  

Comparison of Nitrogen and Phosphorus Removal Efficiency of Five Aquatic Plants

作　　者：罗海霞 涂卫国[1] 杨华[2] 黄杨 邹长武[2] 宋雷 罗雪梅[1] Luo Haixia;Tu Weiguo;Yang hua;Huang Yang;Zou Changwu;Song Lei;Luo Xuemei(Sichuan Provincial Academy of Natural Resource Sciences,Chengdu 610015,China;College of Resource and Environment,Chengdu University of Information Technology,Chengdu 610225,China)

机构地区：[1]四川省自然资源科学研究院,四川成都610015 [2]成都信息工程大学资源与环境学院,四川成都610225

出　　处：《山东化工》2022年第18期200-202,205,共4页Shandong Chemical Industry

基　　金：四川省科技计划项目(2019YFS0504、2022YFS0472、2022YFS0498);成都市科技项目(2022-YF05-00185-SN);2022年基本科研业务费项目(2022JDKY0022)。

摘　　要：目的:为比较西南地区常用于水质改善的旱伞草、黄菖蒲、再力花、美人蕉、鸢尾等5种植物的脱氮除磷效果。方法:在河水中添加碳、氮、磷元素配制劣V类水开展水培试验,测试5种植物在相同条件下对TN、TP的去除效果,进行TP质量守恒计算,并结合植株生长状况进行分析。结果:5种植物的脱氮能力从高到低依次为旱伞草>再力花>鸢尾>黄菖蒲>美人蕉,除磷能力从高到低依次为旱伞草>再力花>美人蕉>黄菖蒲>鸢尾;各植物生长状况存在较大差异,旱伞草的分蘖数、鲜重、干重均远高于其它4种植物;不同植物的直接吸收同化除磷能力与植物生长状况密切相关,长势越好、生物量越大的植物,同化除磷能力越强。Objective: In order to compare the nitrogen and phosphorus removal efficiency of five aquatic plants, Cyperus involucratus,Iris pseudacorus,Thalia dealbata,Canna indica and Iris tectorum. Method:A hydroponic experiment was conducted.By calculating TP mass conservation and analysing the growth status,the removal effects of five plants on TN and TP under the same conditions were compared.Result:The results showed that,the order of nitrogen removal efficiency was C.involucratus >T.dealbata> I.tectorum > I.pseudacorus>C.indica,and the order of phosphorus removal efficiency was C. involucratus > T.dealbata>C.indica> I.pseudacorus>I.tectorum.There are great differences in the growth status of plants.The tiller number,fresh weight and dry weight of C. involucratus were much bigger than the other four plants. The ability of phosphorus removal efficiency by absorption and transformation is closely related to plant growth status.The phosphorus removal efficiency is better when the plant grows stronger.

关 键 词：水培试验 脱氮除磷 吸收同化 微生物协同作用 

分 类 号：X52[环境科学与工程—环境工程]