从地下水中去除Fe和Mn,使用有Rossellomorea子的焦石
Wen Si Lee1, Hamidi Abdul Aziz1,2, Husnul Azan Tajarudin3
1School of Civil Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal, Malaysia.
概括
用氧化铁细菌 (IOB) 固定热带石有效地从地下水中去除铁和. 这种方法有望通过针对这些常见污染物来改善饮用水质量.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 水处理 处理水的方法
背景情况:
- 地下水通常含有高水平的铁 (Fe) 和 (Mn),需要处理以供饮用.
- 传统的水处理方法可能会受到这些溶解金属的挑战.
- 石是一种天然矿物质,作为过介质被探索.
研究的目的:
- 为了研究与氧化铁细菌 (IOB) 固定的热带石在从地下水中去除Fe和Mn的有效性.
- 为了比较固定热带石与原始热带石在柱子研究中的性能.
- 评估IOB对污染物去除和细菌生长的影响.
主要方法:
- 隔离和培养一种氧化铁的细菌,Rossellomorea sp.
- 罗塞洛莫雷亚 sp. 的固定. 在天然石上.
- 进行不同保留时间的柱子研究,使用原始焦岩和IOB固定焦岩.
- 应用托马斯和尤恩-尼尔森模型来分析去除动力学.
- 监测总大肠杆菌 (最可能的数量[MPN]) 和UV254水平.
主要成果:
- 泽奥利特被罗塞洛莫雷亚 sp. 固定起来. 实现了99.34%的Fe去除和88.92%的Mn去除.
- 原始热石显示93.62%的Fe去除和93.73%的Mn去除.
- 在Rossellomorea sp.的存在. 显著增强了铁的氧化和去除.
- 由于Rossellomorea sp.的存在,大肠杆菌总数增加. 促进大肠杆菌的生长.
- 紫外线254的去除增加,表明罗塞洛莫雷亚 sp. 消耗的自然有机物质.
结论:
- 使用IOB固定热岩是一种可行的技术,可以从地下水中提取Fe和Mn.
- 罗塞洛莫雷亚 sp. 在 通过促进 ferrous 铁的氧化,增强了 Fe 的去除.
- 虽然Fe的去除得到了改善,但与原始热岩相比,IOB固定热岩的Mn去除略有减少.
- 生物成分影响水质参数超出金属去除,如有机物和大肠杆菌的存在.
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