长期运行的酸增强六价生物降解:最佳剂量和机制分析
Yichen Wu1, Yingxin Zhao1, Xvlong Jia1
1School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China.
The Science of the total environment
|September 26, 2023
概括
聚酸 (PMo12) 增强了有毒六价 (Cr(VI)) 的生物降解. 这种催化方法显著提高了Cr(VI) 清除效率和废水处理在去化生物膜系统中的效率.
科学领域:
- 环境科学 环境科学
- 生物技术是生物技术.
- 化学工程是化学工程的重要组成部分.
背景情况:
- 六价 (Cr(VI)) 对环境和健康构成重大风险.
- 生物减少为处理Cr (VI) 污染提供了一种可持续的策略.
- 脱化生物膜系统对于废水处理至关重要.
研究的目的:
- 为了确定酸 (PMo12) 的最佳度,用于Cr (VI) 生物还原.
- 阐明在Cr (VI) 减少中电子行为的催化机制.
- 评估PMo12在同时增强Cr(VI) 移除和移除方面的有效性.
主要方法:
- 在Cr(VI) 减少实验中使用了脱化生物膜系统.
- 研究了不同度的PMo12对Cr(VI) 除去效率的影响.
- 分析了电子的生产,运输和消费路径.
- 评估了PMo12对过氧化酶 (POD) 活性和细胞外Cr(III) 固定的影响.
主要成果:
- 0.1mM PMo12实现了92.5%的Cr(VI) 清除效率 (初始度为90 mg/L).
- 与没有PMo12的系统相比,PMo12提高了47.7%的Cr (VI) 去除.
- PMo12改善了Cr (III) 细胞外固定,并显著促进了POD活动.
- PMo12增强了电子的产生,运输和消耗,通过重新激活抑制的电子通路.
结论:
- 在去化生物膜系统中,PMo12是增强Cr(VI) 生物还原的有效催化剂.
- PMo12促进了同时去除和减少CrVI.
- 这种催化方法为处理含有Cr的废水提供了一种有效的技术.
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