通过使用富含铁的脱硫废物作为硫乙醇基脱化中的共同基质来增加混合型脱化
Sandesh Pandey1, Anup Gurung1, Suleman Shahzad1
1Department of Biological Environment, Kangwon National University, Gangwon-do, Republic of Korea.
概括
这项研究表明,使用铁工艺 (SDIP) 和乙醇进行基于硫的脱,可以有效地从废水中去除酸. 新的SDIP系统降低了成本,并在脱过程中消除了硫化气味.
科学领域:
- 环境科学环境科学
- 环境工程环境工程
- 处理水处理水处理水处理
背景情况:
- 废水通常含有高酸 (NO3-N) 含量,这给环境带来了挑战.
- 混合型脱 (使用异质型和自身型过程) 是一种有前途的生物治疗方法.
- 传统的方法可能需要额外的化学物质或难以控制气味.
研究的目的:
- 为了研究基于硫的铁工艺 (SDIP) 脱的有效性,补充以乙醇去除酸盐.
- 评估SDIP在增强废水中异性无化方面的表现.
- 评估SDIP系统的运营效益,包括pH稳定性和气味控制.
主要方法:
- 使用的铁化合物来源于酸性矿井排水废水处理.
- 采用混合型脱方法,使用铁工艺 (SDIP) 和乙醇的基于硫的脱方法.
- 将SDIP反应堆与铁补充剂的性能与仅硫反应堆进行了比较.
主要成果:
- 与纯硫反应堆相比,SDIP系统显示出更高的酸盐去除效率.
- 高酸盐度被有效地去除,即使在低C/N比率.
- SDIP系统保持了稳定的pH水平,从而消除了对额外性来源的需求.
- 在整个操作期间,观察到硫化 (H2S) 气味的完全消除.
结论:
- SDIP系统为废水中的酸清除提供了一种有效和经济高效的解决方案.
- 这种新的组合增强了混合性脱,即使在具有挑战性的低C/N比率条件下.
- SDIP系统具有显著的运行优势,包括pH缓冲和气味减轻,使其成为可行的废水处理技术.
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