组合生态浮床对城市河流缓流水体净化试验研究  

Experimental study on the combined ecological floating bed applied in urban slow-flow water body

作　　者：王津 李亚翠 邢超 汪梦琦 费颖涵 WANG Jin;LI Ya-cui;XING Chao;WAMG Meng-qi;FEI Ying-han(School of Natural Resources and Environment and Tourism,Capital Normal University,Beijing 100048,China;National Engineering Research Center for Urban Environmental Pollution Control,Beijing Municipa Research Institute of Environmental Protection,Beijing 100037,China;Beijing Municipal Pollution Source Management Center,Beijing 100089,China)

机构地区：[1]首都师范大学资源环境与旅游学院,北京100048 [2]北京市生态环境保护科学研究院国家城市环境污染控制工程技术研究中心,北京100037 [3]北京市污染源管理事务中心,北京100089

出　　处：《环境生态学》2024年第10期85-90,共6页Environmental Ecology

基　　金：北京市生态环境保护科学研究院青年基金(2023-002)资助。

摘　　要：采用由不同植物和生物载体组成的组合生态浮床应用于城市污染河道,考察了其对水体中污染物的去除效果。结果表明:组合生态浮床对水体中COD、氨氮、TN和TP都有一定的去除效果,其70 m沿程去除率平均分别达22.3%、23.6%、21.6%和9.7%。其中,美人蕉与碳素纤维生态草组合对高浓度水体中COD、氨氮、TN和TP的去除效果最为显著,去除率分别为5.56%、14.2%、10.5%和9.7%;不同植物在低浓度水体中表现出较好的去除效果,其中梭鱼草对COD和TP的去除效果显著,去除率分别达10.04%和11.1%,黄菖蒲对TN的去除率达7.2%,千屈菜对TP的去除率达11.1%,而阿科蔓生态基对低浓度水体中污染物的去除效果甚微。目前,城市河道水质受点源、面源等因素影响,污染物浓度变化较大,组合生态浮床能够适应水质的变化,可以有效改善污染河道水质。A combined ecological floating bed composed by aquatic plants and biological carrier was applied in urban polluted rivers to investigate its removal of contaminants in open water.The results showed that the removal effects of COD,NH+4-N,TN and TP by the combined ecological floating bed were excellent and the average removal rates along 70 meters reached 22.3%,23.6%,21.6%and 9.7%,respectively.The floating bed of Canna indica L.combined with carbon fiber ecological grass had significant removal of COD,NH+4-N,TN and TP for high-density water and the removal rates were 5.56%,14.2%,10.5%and 9.7%respectively.The floating bed of different plants had better removal for contaminants at low concentrations while the removal rates of Pontederia cordata L for COD and TP were 10.04%and 11.1%respectively,and the removal rates for TN and TP of Iris pseudacorus and Lythrum salicaria were 10.5%and 9.7%respectively.Currently,the water quality of urban rivers varies largely affected by non-point source and other factors.The combined ecological floating bed can adapt to the changes and effectively improve the polluted river water quality.

关 键 词：组合生态浮床 城市河道 缓流水体 去除效果 水质改善 

分 类 号：X52[环境科学与工程—环境工程]