生物学杂志

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湿地水生植物对富营养化水体的净化效果研究

  

  1. 1. 合肥学院 生物与环境工程系, 合肥 230601; 2. 污水净化与生态修复材料安徽省重点实验室,合肥 230088; 3. 安徽省环境污染防治与生态修复协同创新中心, 合肥 230601
  • 出版日期:2019-02-18 发布日期:2019-02-18
  • 通讯作者: 金 杰,教授,硕士研究生导师,研究方向为水污染治理、固废污染治理,E-mail:amushui@hfuu.edu.cn
  • 作者简介:曹开银,硕士研究生,主要研究方向为环境工程,E-mail:caokaiyin@189.cn
  • 基金资助:
    水体污染控制与治理科技重大专项(2017ZX07603-003);安徽省中央引导地方科技发展专项(YDZX20183400004146);安徽省科技重大专项项目(16030801119);安徽高校自然科学研究重大项目(KJ2016SD50);合肥学院人才科研基金项目(16-17RC04);合肥学院研究生创新项目(2017CX03);安徽省重点实验室开放课题(MJ-ZK201701);高校优秀青年骨干人才国内访问研修项目(gxgnfx2018030)

Purification effects of wetland aquatic plants on eutrophic water

  1. 1. Department of Biological and Environmental Engineering, Hefei University, Hefei 230601; 2. Anhui Key Laboratory of Sewage Purification and Eco-restoration Materials, Hefei 230088; 3. Collaborative Innovation Center for Environmental Pollution Control and Ecological Restoration of Anhui Province, Hefei 230601, China
  • Online:2019-02-18 Published:2019-02-18

摘要: 设计实验利用湿地水生植物对富营养化水体进行净化,在巢湖烔炀湿地采集再力花、美人蕉、鸢尾、黑藻、水芹、鸭舌草、田字草、狐尾藻8种水生植物,就CODCr、NH3-N、TP的去除效果进行研究,水力停留时间为30 d,CODCr去除率最高的是再力花,达到81.33%;8种植物对富营养化水体CODCr的去除率大小依次为再力花>美人蕉>狐尾藻>水芹>鸭舌草>鸢尾>黑藻>田字草。对富营养化水体中NH3-N的去除率大小依次为美人蕉>水芹>再力花>黑藻>狐尾藻>鸭舌草>鸢尾>田字草;对富营养化水体中TP的去除率高低依次为水芹>美人蕉>再力花>鸭舌草>黑藻>狐尾藻>鸢尾>田字草。再力花、美人蕉、水芹对水中NH3-N和TP的去除效果较好,去除率分别为75.54%、84.66%、76.22%和73.61%、77.33%、82.67%,8种植物对水体中TP的去除率均超过50%。

关键词: 水生植物, 富营养化, 净化

Abstract: Experiments are designed to study the purification effects on eutrophic water bodies by using wetland aquatic plants. Eight wetland plant species(Thalia dealbata Fraser, Canna indica L., Iris tectorum Maxim., Hydrilla verticillata, Oenanthe javanica (Blume) DC, Monochoriapauciflora(Bl.)Kunth., Marsilea quadrifolia L., Myriophyllum verticillatum L.)were screened in Chaohu Tongyang wetland to compare the purification efficiency of wetland plant species on eutrophic water bodies. The results showed that the highest removal rate of CODCr was Thalia dealbata Fraser, the rate of removal reaches 81.33 percent in 30 d. Thalia dealbata Fraser, Canna indica L. and Oenanthe javanica (Blume) DC were better plants for NH3-N and TP removal. The rates of removal were 75.54%, 84.66%, 76.22% and 73.61%, 77.33%, 82.67% respectively. The removal rates of purging eutrophic water were above 50% for TP on eight plants. 

Key words: hydrophyte, eutrophication, purge

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