一种新的先进的降解工艺来降低Cr(VI):辅助微生物代谢产物
Jing Liang1, Xinyu Li1, Yujing Zheng1
1College of Life Science, Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, Ministry of Education, Jilin Agricultural University, Changchun 130118, China.
Journal of hazardous materials
|October 15, 2024
概括
一个新的先进的减少过程 (ARP) 使用生物废水降解溶液 (PDs) 有效地去除六价 (Cr(VI)). 这种方法显示出稳定的Cr(VI) 减少,为重金属整治提供了一条新的途径.
科学领域:
- 环境化学环境化学
- 环境生物技术 环境生物技术
- 水处理技术水处理技术
背景情况:
- 先进的减排工艺 (ARP) 对于高效的污染物处理至关重要.
- 生物废水降解液 (PD) 含有高水平的有机化合物.
- 六价 (Cr(VI)) 是一种有毒的污染物,需要有效的去除方法.
研究的目的:
- 开发一种新的ARP,用于使用PDs进行完全的Cr(VI) 减少.
- 调查PDs,Fe (III) 和紫外线照射对Cr (VI) 除去的协同效应.
- 探索工业废水开发的ARP的稳定性和适用性.
主要方法:
- 隔离和识别Enterobacter cloacae YN-4用于降解.
- 在PDs中的有机酸和衍生品含量的表征.
- 实验设置将PD与Fe (III) 和UV相结合,用于减少Cr (VI).
- 循环测试,以评估减少过程的稳定性.
主要成果:
- 在66分钟内实现了10mg/L Cr (VI) 的完全减少.
- 降解率在10-100 mg/L的Cr (VI) 度中保持稳定.
- 在10个循环后观察到稳定的Cr (VI) 减少 (71.63%).
- 该过程证明了对电废水的适用性.
结论:
- 在PD中聚碳酸,单碳酸,氨基酸和酒精的联合作用促进了稳定的Cr (VI) 减少.
- 在PDs中产生的多种基 (·CO2−和·O2−) 与Fe(II结合,共同减少Cr(VI).
- 这一策略为各种重金属和有机污染物的修复提供了一个多功能途径.
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