六价铬
生物修复
生物累积
环境修复
环境化学
污染物
环境科学
生物吸附
污染
环境污染
环境友好型
流出物
污染
铬
废物管理
环境工程
环境保护
化学
生物
生态学
工程类
吸附
吸附
有机化学
作者
Pooja Sharma,Surendra Singh,Sheetal Kishor Parakh,Yen Wah Tong
出处
期刊:Bioengineered
[Informa]
日期:2022-02-14
卷期号:13 (3): 4923-4938
被引量:176
标识
DOI:10.1080/21655979.2022.2037273
摘要
Industrial effluents/wastewater are the main sources of hexavalent chromium (Cr (VI)) pollutants in the environment. Cr (VI) pollution has become one of the world's most serious environmental concerns due to its long persistence in the environment and highly deadly nature in living organisms. To its widespread use in industries Cr (VI) is highly toxic and one of the most common environmental contaminants. Cr (VI) is frequently non-biodegradable in nature, which means it stays in the environment for a long time, pollutes the soil and water, and poses substantial health risks to humans and wildlife. In living things, the hexavalent form of Cr is carcinogenic, genotoxic, and mutagenic. Physico-chemical techniques currently used for Cr (VI) removal are not environmentally friendly and use a large number of chemicals. Microbes have many natural or acquired mechanisms to combat chromium toxicity, such as biosorption, reduction, subsequent efflux, or bioaccumulation. This review focuses on microbial responses to chromium toxicity and the potential for their use in environmental remediation. Moreover, the research problem and prospects for the future are discussed in order to fill these gaps and overcome the problem associated with bacterial bioremediation's real-time applicability.
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