通过电子束和硫酸盐氧化优化白马绿色降解,使用箱后设计和生命周期评估
Bao Quoc Tran1, Kun-Yi Andrew Lin2, Faten Boujelbane3
1Ho Chi Minh City University of Natural Resources and Environment, Ho Chi Minh City, 70000, Viet Nam.
概括
这项研究优化了电子束 (EB) 和硫酸盐 (Na2S2O8) 处理以去除Leucomalachite Green (LMG) 染料,实现了97.77%的去除. 环境评估发现废物焚烧.
科学领域:
- 环境化学环境化学
- 水处理技术水处理技术
- 辐射化学 辐射化学
背景情况:
- 莱科马拉希特绿色 (LMG) 是工业废水中持续存在的染料污染物.
- 传统的治疗方法往往无法完全去除LMG.
- 先进的氧化工艺 (AOP) 提供了有效的染料降解的潜力.
研究的目的:
- 为优化联合电子束 (EB) 和固硫酸盐 (Na2S2O8) 过程的LMG去除.
- 评估优化LMG处理过程对环境的影响.
- 为了比较不同电力来源对EB过程的环境影响.
主要方法:
- 使用盒式设计 (BBD) 来优化吸收剂量,初始pH和Na2S2O8度.
- 使用UV-Vis光谱测量来确定LMG去除效率.
- 使用SimaPro 9.4与TRACI工具进行了生命周期评估 (LCA),以评估环境影响.
主要成果:
- 在最佳条件下,在4.5kGy吸收剂量,1.0mM Na2S2O8和pH 6.0的情况下,达到97.77%的LMG去除率.
- 二级模型准确地预测了LMG去除 (调整后的R2=1.4%的差异).
- 脱离离子水和Na2S2O8对全球变暖和生态毒性产生了重大影响;用于发电的废物焚烧显示出最高的环境负担.
结论:
- 结合EB/Na2S2O8工艺对于LMG去除是有效的.
- 天然气作为EB发电的能源提供了最小的环境影响.
- 这项研究提供了一种可持续的方法来处理染料污染的废水.
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