不同沉水植物对受污水体的净化效果分析  

Comparison of purification ability of different submerged macrophytes on polluted water

作　　者：胡一帆 胡金润 Hu Yifan;Hu Jinrun(Anhui Survey and Design Institute of Water Conservancy and Hydropower,Hefei 230088;China Gezhouba Group Water Operation Co.,LTD.,Wuhan 430000)

机构地区：[1]安徽省水利水电勘测设计院,合肥230088 [2]中国葛洲坝集团水务运营有限公司,武汉430000

出　　处：《环保科技》2019年第6期5-9,共5页Environmental Protection and Technology

摘　　要：水体的富营养化日益严重,为了减缓这一现象,本文选取黑藻(Hydrilla verticillata)、苦草(Vallisneria natans)和狐尾藻(Myriophyllum verticillatum L.) 3种常见的沉水植物作为研究对象,就它们在室内静水条件下对受污水体的净化能力进行综合比较。实验结果表明:3种沉水植物对降低受污水体中COD、NH3-N、TN、TP均有较好的效果;各污染物的去除率变化范围分别为61. 1%~76. 9%、85. 8%~95. 5%、86. 5%~94. 6%和71. 6%~90. 2%;系统的净化能力大小为黑藻>苦草>狐尾藻。In order to slow down the more and more serious eutrophication of water bodies,three kinds of submerged macrophytes, including Hydrilla verticillata, Vallisneria natans and Myriophyllum verticillatum L.,were selected as the research objects in present study. Their water purification abilities were investigated in simulated laboratory hydrostatic conditions. The results indicated that these three kinds of aquatic plants had obvious purification efficiency on the pollutants in the polluted water(COD: 61. 1%-76. 9%;NH3-N: 85. 8%-95. 5%;TN: 86. 5%-94. 6%;TP: 71. 6%-90. 2%),and the comprehensive purification ability was rated in the order of Hydrilla verticillata > Vallisneria natans > Myriophyllum verticillatum L..

关 键 词：富营养化 沉水植物 生态净化 

分 类 号：X703[环境科学与工程—环境工程]