从受污染的水中去除阿莫西西林,使用改性顿石作为反应物质
Alaa K Mohammed1, Sara M Saadoon1, Ziad T Abd Ali2
1Biochemical Engineering Department, Al-Khwarizmi College of Engineering, University of Baghdad, Baghdad, 47024, Iraq.
Heliyon
|February 6, 2024
概括
改性顿石有效地从水中去除了抗生素阿莫西西林. 这项研究优化了条件,实现了93%的去除,并确定了用于净化水的吸附机制.
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:
- 水中的抗生素污染对环境和健康构成重大风险.
- 传统的水处理方法往往不足以去除像阿莫西西林这样的复杂有机污染物.
- 托尼特粘土是一种天然和丰富的材料,经过修改后显示出污染物吸附的潜力.
研究的目的:
- 为了研究六甲基三甲基氨基化物 (HTAB) 修饰的本托尼特从水溶液中去除阿莫西西林的疗效.
- 为了优化吸附参数,包括接触时间,pH值,动速度,初始度和吸附剂剂量.
- 用同热,动力和热力学研究来描述改性顿石,并阐明吸附机制.
主要方法:
- 使用HTAB进行土岩的修饰,以赋予水性质.
- 批量吸附实验,以评估在不同条件下的去除效率.
- 使用FTIR,SEM,XRD和BET分析对改性顿石的表征.
- 吸附同热,动力和热力学建模.
主要成果:
- 在最佳条件下,阿莫西西林的最大去除率为93%:接触时间240分钟,pH10,200rpm动,初始度30ppm,吸附剂剂剂量3g/L.
- 弗洛伊德利希等温模型最好地描述了实验数据 (R2 = 94.77),表明异质,多层吸附.
- 吸附动力学遵循伪第一阶模型 (R2 = 95.1).
- 热力学研究证实了该过程的内热和物理吸收性质.
结论:
- 改造HTAB的本托尼特是一种高效的吸附剂,用于从污染水中去除阿莫西西林.
- 吸附过程受到多个参数的影响,并遵循已建立的异热和动力模型.
- 这项研究表明,改性顿石作为制药污染物修复的可持续解决方案的潜力.
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