应用Box-Behnken设计以优化使用磁纳米粒子从工业废水中去除
Celso E D Cardoso1,2, Joana C Almeida1,2, João Rocha1
1Chemistry Department and CICECO-Aveiro Institute of Materials, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal.
Environmental science and pollution research international
|February 27, 2025
概括
铁纳米颗粒有效地从纸厂废水中去除. 优化条件实现了90%以上的去除,有助于水质和资源回收.
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 对于生命至关重要,但其在水生生态系统中的过剩导致了缩.
- 纸厂的废水,特别是来自白植物漂白的 kraft 工艺的废水,具有可变的度,使处理复杂化.
- 工业废水中不受控制的释放对地表水体构成重大环境风险.
研究的目的:
- 为了优化从Eucalyptus纸厂废水中去除,使用铁酸盐纳米颗粒.
- 调查操作参数对除效率的影响.
- 从废水中建立有效和可持续的回收条件.
主要方法:
- 实验设计 (DoE) 和响应表面方法 (RSM) 用于过程优化.
- 铁纳米颗粒被用作去除的吸附剂.
- 在不同的吸附剂剂量,pH值和接触时间下,分析了废水中的度.
主要成果:
- 从含有5毫克P/L的废水中获得了90%以上的去除.
- 最佳条件包括吸附剂剂量>1.3 g/L和pH 5-7在15分钟接触时间内.
- 对1小时 (>0.97 g/L) 和24小时 (>0.83 g/L) 的接触时间确定了调整后的剂剂量,pH值保持一致.
结论:
- 铁纳米颗粒在水处理中表现出高效的吸附剂,用于去除.
- 该研究提供了一种可持续且有效的回收策略,用于从纸厂废水中回收.
- 这种方法有助于改善水质管理和生态系统的保护,通过减轻肥胖的风险.
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