电氧化工艺的应用,用于用混合金属氧化物电极处理石化废水
Amir Mirshafiee1,2, Mohammad Nourollahi3, Alireza Shahriary4
1Health Research Center, Life Style Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran.
Scientific reports
|January 19, 2024
概括
先进的电化学氧化有效处理石化废水,仅在6分钟内消除79%的化学氧气需求 (COD). 这一过程对酸性废水最有效,提供快速预处理解决方案.
科学领域:
- 环境化学环境化学
- 电化学 电化学 电化学
- 水处理技术水处理技术
背景情况:
- 石油化工业务产生大量的废水,需要有效的处理.
- 排放未经处理的石化废水会给环境带来重大风险.
- 先进的氧化工艺 (AOP) 对于减轻工业水污染至关重要.
研究的目的:
- 为了研究先进的电化学氧化 (AEOP) 对于处理真正的石化废水的有效性.
- 开发和评估混合金属氧化物 (MMO) 电极,以加强废水处理.
- 优化AEOP参数以减少处理时间和能源消耗.
主要方法:
- 使用平行板电化学反应器进行直接的阳极氧化.
- 用高化学氧需求 (COD) (20,45052,300 mg/l) 处理了四个不同的真实石化废水样本.
- 使用的混合金属氧化物 (MMO) 电极旨在提高稳定性和效率.
主要成果:
- 在酸性废水中 (pH < 5) 在6分钟内达到79%的COD去除效率.
- 确定了用于高COD去除的伪二次反应速率动力学 (R2>98%).
- 在性废水条件下观察到明显较低的COD减排效率.
- 记录了117千瓦时/立方米的电力消耗,用于79%的COD去除.
结论:
- 使用MMO电极的AEOP是酸性石化废水的高效预处理方法.
- 快速处理时间 (6分钟) 使该工艺适用于工业应用.
- 可能需要进一步的研究来优化性废水流的性能.
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