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在废水中吸附Pb²⁺和Cu²⁺,通过从玉米中制备的硫酸盐吸附剂

Xiang Wang¹, Jiwei Wang², Landong Jiang¹

¹College of Environmental and Chemical Engineering, Chongqing Three Gorges University, Wanzhou, 404100 Chongqing, China.

International journal of biological macromolecules

|July 14, 2023

概括

改性素硫酸盐有效地从工业废水中去除重金属. 这种低成本,环保的吸附剂显示出高容量和对铜和等污染物的快速平衡.

科学领域:

环境科学环境科学
材料科学材料科学材料科学
化学工程是化学工程的重要组成部分.

背景情况:

由于重金属离子污染,工业废水对人类健康构成重大风险.
开发具有高容量和可回收性,具有成本效益和环保性的吸附剂对于减轻重金属污染至关重要.

研究的目的:

开发和评估一种改造的酸二甲酸吸附剂,以有效地从工业废水中去除重金属.
为了研究各种重金属离子的修改吸附剂的吸附性能,容量和动力学.

主要方法:

宁硫酸盐是从玉米中提取的,随后使用热水法进行修改,以创建一个多孔结构.
修改后的素硫酸盐在从废水中去除重金属 (包括Cu2+和Pb2+) 的效率方面进行了测试.

主要成果:

修改后的素硫酸盐具有很高的吸附能力:Cu2+的450.3 mg g-1和Pb2+的475.4 mg g-1.
在60分钟内达到吸附平衡40毫克L-1Cu2+和Pb2+使用0.4克L-1吸附剂.
在2小时内,Cr (95%),Fe (99%),Pb (83%),Cu (87%) 和Cd (72%) 的高去除比率得到了实现.

结论:

改性素硫酸盐是一种高效和实用的吸附剂,用于从工业废水中去除各种重金属.
吸附剂的多孔结构增强了它对重金属离子的容量,为水处理提供了可持续的解决方案.

关键词:

吸附方式吸附方式吸附方式玉米草的玉米草是一个很好的方法.重金属离子重金属离子硫酸酸是一种硫酸.

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