通过联合提取剂从脱水污泥中去除Cd的研究:皮提取物和复合化学提取剂
Hanyu Li1, Shuai Jiao2, Lili Tian3
1College of Resources and Environment, Jilin Agricultural University, Changchun 130118, China.
Food chemistry: X
|September 16, 2024
概括
果皮与化学剂相结合,有效地从污泥中去除重金属. 使用特定酸性混合物的树网状和树皮显示出高和的提取率.
科学领域:
- 环境科学 环境科学
- 废物管理 废物管理
- 绿色化学 绿色化学
背景情况:
- 果皮废弃物是一个重大的环境挑战.
- 污泥中的重金属 (HM) 污染对生态系统和人类健康构成风险.
- 从废物流中回收资源对于可持续发展至关重要.
研究的目的:
- 开发和优化从水果皮中提取复合提取剂和从污泥中去除重金属的化学剂.
- 评估这些复合提取剂在释放重金属方面的效率.
- 评估过程对污泥营养含量和HM溶解度的影响.
主要方法:
- 复合提取剂的选和配置使用树网状 (CR) 和树状 (CL) 皮与酸 (NTA) 和酸/酸.
- 提取条件的优化 (比率,时间,温度).
- 对重金属提取率,污泥营养含量和HM溶解度的分析.
主要成果:
- 优化的CR-NO5和CL-NT4组合分别实现了高 (92.6%) 和 (98.4%) 的提取率.
- 基于CL的提取剂增加了污泥的营养成分含量 (157.75177.88 g·kg-1).
- 四种联合提取剂显著增加了污泥中重金属的可溶性分数 (1436%).
结论:
- 从果皮和化学剂中提取的复合提取剂提供了一种有效的方法,用于污泥中的重金属整治.
- 这种方法促进了污泥的无害处理,并促进了水果皮废物的利用.
- 该研究为可持续的污泥管理和资源利用策略提供了宝贵的参考资料.
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