用CaO2对反应性织染料进行环保氧化:特定独立参数的影响
1Department of Environmental Engineering, Cukurova University, Adana, Turkey.
Environmental technology
|June 28, 2023
概括
过氧化 (CaO2) 有效地从织废水中去除反应性黑色5 (RB5) 染料. 这种环保氧化剂在pH10下达到99%的效率,不形成污泥,为传统方法提供了经济高效的替代方案.
科学领域:
- 环境化学环境化学
- 水处理技术水处理技术
- 氧化过程 氧化过程
背景情况:
- 织废水染料带来了环境风险.
- 先进的氧化工艺 (AOP) 是有效的,但有缺点,如污泥和成本.
- 过氧化 (CaO2) 是一种环保的替代氧化剂,用于去除染料.
研究的目的:
- 为了研究过氧化 (CaO2) 在织废水中氧化反应性黑5 (RB5).
- 分析pH,CaO2剂量,温度和离子对RB5氧化的影响.
- 为了确定CaO2介导的RB5氧化过程的效率和热力学特性.
主要方法:
- 氧化反应性黑5 (RB5) 使用过氧化 (CaO2) 没有激活剂.
- 独立因素的调查:pH,CaO2剂量,温度和阳离子.
- 使用多重线性回归 (MLR) 分析氧化效率和热力学参数.
主要成果:
- CaO2剂量是影响RB5氧化的最重要因素.
- 最佳氧化发生在pH10下,0.5gCaO2达到99%的效率,对于100mg/L的RB5.5.
- 这个过程是内热的 (Ea = 31.135 kJ mol-1, ΔH° = 110.4 kJ mol-1);阴离子以特定的顺序抑制氧化.
结论:
- 过氧化 (CaO2) 是一种高效,环保,经济高效的氧化剂,用于去除RB5染料.
- 氧化为织废水处理提供了传统AOP的无污泥替代品.
- 优化条件 (pH10,特定剂量) 确保高染料去除效率与CaO2.
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