地下水的染色体通过自的硫不成比例的去除
Yan-Ying Qiu1, Juntao Xia1, Jiahua Guo1
1Guangdong Provincial Key Lab of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China.
Environmental science and ecotechnology
|March 12, 2024
概括
硫不相称的细菌 (SDB) 提供了一种新的方法,可以从地下水中去除有毒的酸盐[Cr(VI). 这种方法绕过了对有机碳的需求,提高了在具有挑战性的环境中修复效率.
科学领域:
- 环境微生物学 环境微生物学
- 地质化学 地质化学
- 生物修复是一种生物修复.
背景情况:
- 染色体[Cr(VI) ]污染对地下水质量构成重大全球威胁.
- 现有的基于硫的生物修复方法对Cr{VI}受到限制,因为它们依赖于溶解的有机碳,这阻碍了营养缺乏环境中的效率.
研究的目的:
- 调查硫不相称细菌 (SDB) 在污染的地下水中去除CrVI的有效性.
- 阐明SDB介导的Cr6修复所涉及的机制和微生物群体动态.
主要方法:
- 在用于地下水处理的含硫床反应堆中实施SDB.
- 在寡度转化条件下测量Cr (VI) 去除速率的量化.
- 通过以基因组为中心的基因组分析识别关键的微生物参与者及其相互作用.
主要成果:
- 在寡型条件下,在6.19 mg L-1 h-1 的显著的Cr-VI) 移除率.
- 通过生物硫化物进行化学降解和微生物降解都被确定为关键的Cr (VI) 去除机制.
- 揭示了一个共生微生物社区,包括SDB,硫氧化和染色体减少细菌.
结论:
- 硫不成比例是密码硫循环中的一个至关重要的过程,用于地下水中的Cr (VI) 整治.
- 基于SDB的生物反应器提供了一种有效和可持续的策略,用于从污染的地下水中去除酸盐.
- 微生物群体内的共生相互作用增强了整体的Cr6排毒过程.
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