使用从多糖中获得的可生物降解吸附聚合物去除水污染物西普洛素
Sarah Alvarado1, Alicia Megia-Fernandez1,2,3, Mariano Ortega-Muñoz1,2,3
1Department Organic Chemistry, Faculty of Sciences, University of Granada, 18073 Granada, Spain.
Polymers
|August 12, 2023
概括
一种基于粉的新型聚合物pSt有效地从水中去除抗生素西普罗夫洛克萨. 这种环保材料具有成本效益,可重复使用,并且适合发展中国家的水资源整治.
科学领域:
- 环境化学环境化学
- 聚合物科学 聚合物科学
- 水处理 处理水的方法
背景情况:
- 全球用水量正在上升,需要有效的污染物清除方法.
- 污染物危及水的回收和再利用,给新兴经济体带来挑战.
- 经济上和环境上可行的解决方案对于大规模的水资源整治至关重要.
研究的目的:
- 从可生物降解的多糖化合物合成新型,环保的吸附聚合物.
- 评估这些聚合物在去除抗生素污染物的有效性,特别是西普洛素 (CIP).
- 探索这些材料的潜力,以实现可持续的水资源整治.
主要方法:
- 可生物降解的多糖化合物 (粉,乳糖) 与二维нил硫的交叉链接产生不溶性聚合物 (pSt,pDx).
- 评估聚合物在从水中去除西普洛素 (CIP) 的性能.
- 研究吸附行为,包括pH值依赖和再生能力.
主要成果:
- 对于CIP,pSt显示了高的去除率 (>92%) 和高的分布系数 (Kd = 1469 L/kg).
- 通过pSt吸收CIP是pH依赖的,在轻微性pH时增强.
- 使用环保处理 (20 mM AcONa,pH 4.6) 可以有效地再生和重复使用pSt.
结论:
- pSt是一种新的,可持续的材料,用于从内陆和海水中去除抗生素污染.
- 它对CIP的高度亲和力,即使在高度盐中,可负担性和易于合成/再生,使其成为发展中国家的理想选择.
- 无溶剂的合成和再生强调了其对水的环境友好性.
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