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使用旋转阳极电凝反应器去除化物:使用响应表面方法的参数优化,异热和动力学研究,经济分析和污泥特性分析
Ram Raj Meena1, Raj Mohan Singh1, Pramod Soni2
1Department of Civil Engineering, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, 211004, India.
Journal of environmental management
|September 24, 2024
概括
这项研究优化了电凝 (EC) 来从饮用水中去除化物,达到95%以上的效率. 开发的方法具有成本效益,并确保安全的污泥处理,为水处理提供可持续的解决方案.
科学领域:
- 环境工程 环境工程
- 水处理技术水处理技术
- 化学工程是化学工程的重要组成部分.
背景情况:
- 饮用水中的化物会导致牙和骨的化.
- 有效和经济的化物去除方法对于公共卫生至关重要.
- 现有的方法需要优化,以提高效率和成本效益.
研究的目的:
- 通过旋转阳极电凝 (EC) 反应器来加强化物去除.
- 模拟和优化EC过程参数,以获得最大的化物去除效率.
- 评估优化过程的经济可行性和环境安全性.
主要方法:
- 使用响应表面方法 (RSM) 与中央复合设计 (CCD) 进行优化.
- 多种操作参数:旋转速度 (20-80 RPM),电流 (0.2-1.0 A),初始化物度 (8-40 mg/L) 和时间 (15-75 分钟).
- 分析了去除动力学 (第二阶模型) 和同热量 (Sips模型).
- 进行成本分析和污泥表征 (XRD,FTIR,TCLP).
主要成果:
- 在优化条件下实现了最大预测的化物去除96.87%和实验性去除95.40%.
- 优化的参数:32 mg/L初始化物,0.8 A电流,60 分钟,60 RPM.
- 在特定条件下确定了0.256美元/立方米的运营成本,用于93.49%的化物去除.
- 泥的表征证实了安全处置的潜力.
结论:
- 通过RSM优化的旋转阳极EC反应器,在化物清除方面非常有效.
- 该工艺为减轻饮用水中的化物污染提供了具有成本效益和环境安全性的解决方案.
- 这项研究表明了可持续水处理的有希望的方法.
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