有机污染物的植物-微生物联合修复技术研究进展
Progress on plant-microorganism combined remediation of organic pollutants
查看参考文献62篇
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文摘
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环境中有机污染物如各类农药、石油化合物、多环芳烃、多氯联苯等导致了严重的环境污染问题,对人类健康也造成了严重威胁。因此,对环境中有机污染物的去除研究引起了人们的重视。在有机污染物修复技术中,最新出现的植物-微生物联合修复技术因其高效、环境友好和修复成本低等优点受到越来越多的关注。本文论述了有机污染物的植物-微生物联合修复技术原理、形式及其在污染土壤修复应用中的研究进展,并讨论了植物-微生物联合修复技术今后的研究重点,以期为环境中有机污染物修复提供参考。 |
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其他语种文摘
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Organic pollutants including chemical pesticides, petroleum compounds, polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs), have caused serious environmental problems and posed new threats to human health when released into environments. Therefore, studies on the remediation of organic pollutants in contaminated-sites have received great concern. Plant-microorganism combined remediation of organic pollutants is a method to enrich, fix and degrade organic pollutants in soil by means of plant-microbe composite system, which is highly efficient, environmentally friendly and cheap, and has been paid more and more attention. On the one hand, the roots of plants continue to provide secretions and other metabolites for microorganisms, improve the contents of soil organic matter in roots, thus increasing the microbial diversity andl activity, and promoting the ability of microbial remediation of organic pollutants. On the other hand, rhizosphere microorganisms secrete organic acids and other substances, are able to change the existing state or redox state of organic pollutants in the environment, and reduce the toxicity of organic compounds to plants, strengthen the tolerance of plants, and promote the absorption, transfer and enrichment of organic pollutants. Plantmicroorganism is mutually beneficial to each other, which can enhance the effect of phytoremediation. The combined forms of phytoremediation include plant-rhizosphere microorganisms, plant-mycorrhizal fungi, plant-endophyte and plantspecific degrading bacteria. In recent years, a series of advances have been made in phytoremediation of plant-microorganism combination. Examples include that the interaction of alfalfa and soil microbe can greatly reduce the concentration of PCBs in soil, and the inoculation of rhizobium and mycorrhizal fungi enhances the ability of alfalfa to remove PCBs. Regarding the problems raised in the development of bioremediation, the following three aspects should be emphasized in the study of plant-microorganism remediation in the future: 1) Screen selected microbial strains and plant materials to improve the remediation efficiency of microbe and resistance of plants; 2) strengthen the real-time monitoring ability of bioremediation process of organic pollutants, optimize and control the living environment of plants and microorganisms, and improve the efficiency of remediation; 3) improve the degradation efficiency by enhancing the bioavailability of pollutants to strengthen the bioremediation effect. |
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来源
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浙江大学学报. 农业与生命科学版
,2017,43(6):757-765 【核心库】
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DOI
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10.3785/j.issn.1008-9209.2017.05.161
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关键词
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有机污染物
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植物
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微生物
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联合修复
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生物修复
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地址
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1.
南京农业大学生命科学学院, 农业部农业环境微生物重点实验室, 南京, 210095
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南京农业大学资源与环境科学学院, 南京, 210095
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中国科学院水利部成都山地灾害与环境研究所, 中国科学院山地表生过程与生态调控重点实验室, 成都, 610041
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语种
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中文 |
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文献类型
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综述型 |
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ISSN
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1008-9209 |
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学科
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环境污染及其防治 |
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基金
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国家重点研发计划重点专项
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文献收藏号
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CSCD:6149583
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