化基脱化与电化学消毒相结合,从地下水中去除酸盐和微生物污染物
Eleftheria Ntagia1, Piet Lens1
1National University of Ireland, Galway, University Road, H91 TK33 Galway, Ireland.
概括
这项研究提出了一种新的两步地下水处理方法,使用生物脱和电化学消毒. 结合方法有效地去除酸盐和微生物污染物,减少化学物质的投入,使饮用水更安全.
科学领域:
- 环境工程 环境工程
- 水处理技术水处理技术
- 微生物学 微生物学
背景情况:
- 地下水被酸盐和微生物污染是城市化地区卫生条件差的一个重要问题.
- 当污染的地下水成为饮用水的主要来源时,它会直接危害健康.
- 现有的处理方法可能涉及大量的化学投入和大量的环境足迹.
研究的目的:
- 开发和评估一种结合生物和电化学的水处理工艺.
- 为了减少化学品的使用和对地下水的整治对环境的影响.
- 有效地从饮用水源中去除酸盐和微生物污染物.
主要方法:
- 构建一个以矿为基础的流化床反应堆 (P-FBR) 用于自性脱.
- 使用带电 (Cl2) 的电化学电池对P-FBR废水进行消毒.
- 评估脱效率,速度和液压保留时间 (HRT).
- 通过总大肠杆菌日志减少和电荷密度来评估微生物减少.
主要成果:
- 从初始度为178毫克的NO3-L-1中,酸盐去除效率为79%.
- 平均脱率为171毫克NO3-L-1d-1,在18小时的HRT后实现.
- 电化学消毒导致总大肠杆菌减少3.8log.
- 已证明减少化学投入和环境足迹.
结论:
- 联合P-FBR和电化学消毒为处理酸盐和微生物污染的地下水提供了有效的解决方案.
- 这种综合方法尽量减少对化学品的依赖和对环境的影响.
- 这项技术对在脆弱地区提供更安全的饮用水充满希望.
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