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煤灰通过微波路线无形化,作为潜在的吸附剂,用于在水中去除污染物

Pietro Serraglio Figueiredo¹, Sérgio Luiz Jahn¹, Tito Crissien²

¹Research Group On Adsorptive and Catalytic Process Engineering (ENGEPAC), Federal University of Santa Maria, Av. Roraima, 1000-7, Santa Maria, 97105-900, Brazil.

Environmental science and pollution research international

|August 9, 2025

概括

这项研究提出了一种新方法,将煤灰转化为有效的吸附剂,用于从水中去除水晶紫色染料. 微波辅助的性聚变过程显著增强了灰用于废水处理的特性.

科学领域:

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

背景情况:

煤灰是一种重要的工业副产品,具有环境应用的潜力.
传统的废水处理方法经常面临效率和成本方面的挑战.
从废物中开发新型吸附剂对于可持续发展至关重要.

研究的目的:

开发一种新的,快速的煤灰形态化的方法.
为了研究微波形态化灰 (MWAA) 作为晶体紫色 (CV) 染料去除吸附剂的有效性.
优化吸附条件并评估开发的吸附剂的可重复使用性.

主要方法:

煤灰通过微波辅助性聚变 (1000 W,3 分钟) 使用固体 NaOH 进行无形化.
无形煤灰 (MWAA) 的孔状性质的表征.
使用中央复合可旋设计 (CCRD) 优化吸附条件 (pH,吸附剂剂量).
吸附实验以确定吸附容量并研究吸附热力学和动力学.

主要成果:

微波辅助性聚变显著改善了表面积 (1.23到66.28米2g-1) 和孔隙体积 (0.0045到0.1934厘米3g-1).
最佳吸附条件被确定为pH 9和0.7g L-1吸附剂剂量.
最大吸附能力达到142毫克g-1,具有自发,外热和有利的吸附动力学.
在四个循环中,MWAA表现出良好的可重复使用性.

结论:

微波辅助性聚变是一种有效和快速的方法,可以从煤灰中产生先进的吸附剂.
作为一个具有成本效益和可持续的吸附剂,MWAA具有显著的潜力,用于从废水中去除水晶紫色染料.
这种方法为煤灰利用和工业废水处理提供了一个有希望的解决方案.

关键词:

吸附方式吸附方式吸附方式形态化无形化是什么造成性核聚变的原因煤灰是一种煤灰.微波炉微波炉微波炉微波炉微波炉微波炉微波炉的作用是什么污水处理污水处理污水处理

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