一种强大的抗酸合聚合物,用于增强飞中的离子稳定
Qi Wang1, Huiyu Yan1, Linyan Yao1
1State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, Gansu, People's Republic of China.
BMC chemistry
|May 23, 2024
概括
一种新的耐酸聚合物25DTF有效地稳定了城市固体废物焚烧炉中的 (Pb2+). 这项创新可以防止出水,即使在酸性条件下,为环境带来好处.
科学领域:
- 环境化学环境化学
- 聚合物科学 聚合物科学
- 废物管理 废物管理
背景情况:
- 来自城市固体废物焚烧炉 (MSWIs) 的飞灰含有有毒重金属,构成环境风险.
- (Pb2+) 是一个主要的问题,因为它具有很高的泄漏潜力,并且超过了允许的水平.
- 现有的化学稳定方法在酸性条件下对Pb2+无效.
研究的目的:
- 开发一种耐酸合聚合物,以提高MSWI飞灰中的Pb2+稳定性.
- 在包括酸度在内的各种条件下评估新型聚合物的有效性.
主要方法:
- 通过甲和2,5-dithiourea反应合成合聚合物25DTF.
- 评估25DTF在飞灰中的Pb2+化效率,特别是在酸性条件下 (pH ≤ 7).
- 在中国不同地区对二次Pb2+溶解预防和表现的评估.
主要成果:
- 合成的25DTF聚合物在飞灰中显示出接近100%的Pb2+化效率.
- 即使在酸性条件下 (pH ≤ 7),25DTF也可以实现Pb2+异常化效率 (>99.9%).
- 25DTF有效地抑制了二次Pb2+溶解,并在不同地理位置表现一致.
结论:
- 耐酸的25DTF合聚合物为MSWI飞灰中稳定Pb2+提供了强大的解决方案.
- 25DTF显示了减轻土壤和废水中重金属污染的巨大潜力.
- 这一进步支持改善城市环境管理和管理.
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