生态浮床净化机理与效果研究进展  

Research review on the purification mechanism and effect by eco-floating bed method

作　　者：王超[1] 王永泉[1] 王沛芳[1] 王文娜[1] 张微敏 侯俊[1] 钱进[1] 

机构地区：[1]河海大学浅水湖泊综合治理与资源开发教育部重点实验室,环境学院,南京210098

出　　处：《安全与环境学报》2014年第2期112-116,共5页Journal of Safety and Environment

基　　金：国家十二五水专项项目(2012ZX07101-008);水利部公益性行业科研专项经费项目(201101020)

摘　　要：近年来,我国水体污染和富营养化现象日益严重,已经严重制约了国民经济的健康发展。生态浮床以其操作简单、占地小、净化能力好等优点越来越多地应用于富营养化水体的净化。详细介绍了生态浮床净化水质的主要途径:1)物理作用及化学沉淀;2)植物的吸收作用;3)氧气的传输作用;4)藻类的抑制作用;5)微生物降解作用;6)植物与微生物的协同作用。此外,对影响生态去除效率的外界因素进行了简单介绍,同时给出了生态浮床的效益分析。但生态浮床也有其缺点,如在深水水体中净化效率难以提高及缺少反硝化细菌需要的碳源等。最后提出了生态浮床今后的研究热点。This paper intends to make a theoretical foundation of the application of the ecological floating bed method through retrospect of the latest research advances in this field in the world. As is known, with the development of industry and agriculture in China, water environment has been seriously damaged, particularly, serious pollution caused by the eutrophication to the water quality of lakes and reservoirs. The ever increasing water pollution of water environment have brought about great harm and threat even to human health and the normal economic development of China. In hoping to find better solutions to this problem and improve the water quality by more effective control of the eutrophic water bodies, we would like to propose the following practical measures, with the ecological floating bed, in particular. The so-called ecological floating bed can be said to be a feasible biological treatment technology to treat the problem of eutrophic water bodies. As an effective measure, the technology is simple in use, economic in space demand, and strong in purification effect. As long as it is possible to cut off the plants from the water bodies, the pollutants of the plants tend to be removed. It can not only purify the water body and protect the aquatic environment, but can bring some economic benefits to the water environment users as well. To be exact, the ecological floating bed consists of four steps： the framework, which is used to sustain the whole floating bed; which itself can provide the overall floatage; the substrate is the basic elements to provide nutrients for the plants to grow; plants, the main part of the floating bed, are potential to provide the largest efficacy to purify the sewage. In addition, the article also describes the main approaches to water purification by ecological floating bed in detail. First of all, we have explored the physical effects and the chemical precipitation. Secondly, the absorbability of the plants has been studied. Thirdly, some research has been done on the transmis

关 键 词：环境工程学 物理作用 吸收 吸附 生物协同 

分 类 号：X173[环境科学与工程—环境科学]