通过橄末吸收剂有效去除阴离子和阴离子染料的洞察力
Chunni Lei1,2, Yali Yu3, Xiaoxia Zhang2
1College of Resources and Environment, Lanzhou University, Lanzhou, 730000, Gansu, China.
Scientific reports
|August 28, 2025
概括
橄油吸附剂有效地从废水中去除阳离子和阴离子染料,从而产生饮用水质量. 这种农业副产品支持循环生物经济和可持续废物管理.
科学领域:
- 环境科学
- 材料科学
- 绿色化学
背景情况:
- 橄油是一种丰富的农业废物,具有生物经济应用的潜力.
- 污染废水的阴离子和阴离子染料带来了环境挑战.
- 开发可持续的吸附剂对于有效的染料去除至关重要.
研究的目的:
- 开发一种低成本的环保吸附剂 (OPA).
- 研究OPA在废水中去除各种阴离子和阴离子染料的效率.
- 了解吸附机制和影响因素.
主要方法:
- 通过干燥,压碎,选和杀菌,加工橄果汁成为吸附剂 (OPA).
- 进行了批量吸附实验,以研究吸附剂剂量,染料度,接触时间,温度和pH值的影响.
- 应用了吸附等温和和运动模型 (Langmuir,伪一级,伪二级).
主要成果:
- 通过OPA,可以有效地去除12种不同的阳离子和阴离子染料.
- 所有染料的吸附方式都采用了兰木尔等温模型.
- 对8种染料的伪二阶模型和4种染料的伪一阶模型最好地描述了吸附动力学.
- 静电相互作用和孔隙填充是关键机制.
- 在5个再生周期中,OPA的可重复使用性很高.
- 处理的废水质量符合饮用水标准.
结论:
- 橄油吸附剂 (OPA) 是一种高效,可重复使用和可持续的材料,用于从废水中去除各种染料.
- 这项研究提供了对OPA吸附机制的全面了解.
- OPA有助于可持续的废物管理和环境整治,促进循环生物经济.
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