Study on detoxification and removal mechanisms of hexavalent chromium by microorganisms.
Study on detoxification and removal mechanisms of hexavalent chromium by microorganisms.
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DOI：
10.1016/j.ecoenv.2020.111699
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发表时间：
2021-01
影响因子：
6.8
通讯作者：
Xue Tang;Y. Huang;Ying Li;Li Wang;X. Pei;Dan Zhou;P. He;S. Hughes
中科院分区：
文献类型：
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作者：
Xue Tang;Y. Huang;Ying Li;Li Wang;X. Pei;Dan Zhou;P. He;S. Hughes
粗放的工业活动导致环境中铬的含量增加，对周围的水、土壤和大气造成严重污染。铬通过食物链在环境中的浓缩最终影响人类健康。因此，铬污染的修复对人类社会的发展至关重要。生物修复技术因其环境友好、成本低廉而受到众多学者的关注。以往的综述大多涉及微生物的纯培养，很少讨论生物还原条件的优化。为了弥补这些不足，我们不仅详细介绍了影响微生物还原的条件，而且创新性地引入了联合体，这可能是未来复杂现场环境处理的基石。本研究的目的是总结铬的毒性、影响微生物修复的因素以及加强生物修复的方法。然而，生物修复技术的实际应用仍面临重大挑战。本研究还提出了目前研究中存在的问题和未来的研究方向，为生物修复技术的应用提供了理论指导和科学依据。
Extensive industrial activities have led to an increase of the content of chromium in the environment, which causes serious pollution to the surrounding water, soil and atmosphere. The enrichment of chromium in the environment through the food chain ultimately affects human health. Therefore, the remediation of chromium pollution is crucial to development of human society. A lot of scholars have paid attention to bioremediation technology owing to its environmentally friendly and low-cost. Previous reviews mostly involved pure culture of microorganisms and rarely discussed the optimization of bioreduction conditions. To make up for these shortcomings, we not only introduced in detail the conditions that affect microbial reduction but also innovatively introduced consortium which may be the cornerstone for future treatment of complex field environments. The aim of this study is to summary chromium toxicity, factors affecting microbial remediation, and methods for enhancing bioremediation. However, the actual application of bioremediation technology is still facing a major challenge. This study also put forward the current research problems and proposed future research directions, providing theoretical guidance and scientific basis for the application of bioremediation technology.