在连续流动反应堆中使用草对 (V) 和 (VI) 进行同步生物修复
Liting Hao1, Bowei Fu1, Jinkai Shi1
1Key Laboratory of Urban Stormwater System and Water Environment, Ministry of Education/Sino-Dutch R&D Centre for Future Wastewater Treatment Technologies, Beijing University of Civil Engineering and Architecture, Beijing, 100044, China.
Environmental research
|November 9, 2024
概括
这项研究表明,使用草作为碳来源,在地下水中有效地对 (V) 和 (VI) 进行生物修复. 连续流动反应堆实现了这些重金属的完全去除,展示了对工业污染的可持续解决方案.
科学领域:
- 环境科学 环境科学
- 生物技术是生物技术.
- 环境化学环境化学
背景情况:
- 工业采矿活动导致地下水大量被 (V) 和 (VI) 污染.
- 这些重金属带来了巨大的环境和健康风险,需要有效的补救策略.
- 像草这样的农业副产品为生物修复提供了潜在的低成本碳来源.
研究的目的:
- 评估使用草作为碳源用于污染地下水中 (V) 和 (VI) 的生物修复的可行性.
- 为了评估连续流动反应堆系统的重金属去除性能.
- 为了确定微生物群落和生物化学过程参与修复.
主要方法:
- 构建和运行一个抗污染物波动的连续流动生物反应器.
- 在114天内监测 (V) 和 (VI) 的去除效率.
- 分析湿土和酸盐的形成,细胞外聚合物质 (EPS) 含量和微生物群落组成.
主要成果:
- 瓦纳 (V) 和 (VI) 的完全去除在10-34天内实现.
- 在34-64天之间,最大的 (VI) 去除率达到1.19 mg/L·h.
- ,酸盐和增加的EPS含量有助于减少重金属,并确定了像Bacillus和Paludibacter这样的关键微生物.
结论:
- 草是一种可行且有效的碳来源,用于地下水中复合重金属污染的生物修复.
- 连续流动反应器系统在去除 (V) 和 (VI) 方面表现出高效率和稳定性.
- 这项研究为基于草的生物修复在工业废水处理中的实际工程应用提供了基础.
更多相关视频
15:19Development of Sulfidogenic Sludge from Marine Sediments and Trichloroethylene Reduction in an Upflow Anaerobic Sludge Blanket Reactor
Published on: October 15, 2015
9.7K
07:34Evaluation of Integrated Anaerobic Digestion and Hydrothermal Carbonization for Bioenergy Production
Published on: June 15, 2014
25.5K
相关概念视频
Bioremediation
18.2K
Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
18.2K
Voltammetry: Stripping Methods
184
Anodic Stripping Voltammetry (ASV), Cathodic Stripping Voltammetry (CSV), and Adsorptive Stripping Voltammetry (AdSV) are electrochemical techniques used to determine trace amounts of analytes in solution. These methods involve applying a potential to an electrode and measuring the resulting current.
Anodic Stripping Voltammetry (ASV)
ASV is used to determine metals and metalloids at trace levels. It involves two steps: deposition and stripping. First, a negative potential is applied to the...
Anodic Stripping Voltammetry (ASV)
ASV is used to determine metals and metalloids at trace levels. It involves two steps: deposition and stripping. First, a negative potential is applied to the...
184
