从废水中通过铁改性炭固定:不同的铁制造商和实用性评估
Ting Cui1, Song Yan2, Yu Ding3
1School of Energy and Environment Science, Yunnan Normal University, Kunming 650500, China.
Ecotoxicology and environmental safety
|March 12, 2024
概括
红色泥 (RM) 有效地产生绿色 (HC) 来从废水中去除有毒六价 (Cr(VI)). 这种可持续的方法提供了高吸附能力和实际应用潜力.
科学领域:
- 环境化学环境化学
- 材料科学 材料科学 材料科学
- 废物管理 废物管理
背景情况:
- 像红泥 (RM) 这样的工业固体副产品带来了重大的废物挑战.
- 有效的再利用策略对于防止资源浪费至关重要.
- 从废物中开发新材料是可持续化学的一个重点.
研究的目的:
- 为了利用红泥 (RM) 制造绿色 (HC) 基吸附剂.
- 使用RM制备和表征零价值铁 (ZVI) 改性碳酸性材料.
- 评估这些新型吸附剂从废水中去除六价 (Cr(VI)) 的效率.
主要方法:
- 从红色泥土 (RM) 制造 (HC) 并与铁盐 (IS) 进行比较.
- 综合HC材料的物理化学性质的全面表征.
- 评估Cr(VI) 去除性能,包括剂量,pH影响,吸附同热量,动力学和热力学.
- 通过植物实验评估吸附剂的稳定性,可回收性和实际可行性.
主要成果:
- 红泥衍生 (RM/HC) 和铁盐衍生 (IS/HC) 已成功合成和表征.
- RM/HC表现出高的Cr (VI) 去除能力,达到375.66 mg/g,表现优于IS/HC (337.19 mg/g).
- 吸附过程通过等温和运动模型得到了很好的描述,表明了强大的表面相互作用.
- 吸附剂显示出良好的稳定性和可回收性,在bok choy种植实验中成功应用.
结论:
- 红泥 (RM) 是制造高性能碳水化合物 (HC) 吸附剂的有价值和环保的前体.
- RM/HC为从工业废水中去除污染物提供了有效的解决方案.
- 这项研究突出了废物利用和环境修复的可持续方法.
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