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有效地从水中去除,使用来自 henequen 纤维的铁浸低温生物炭:性能,机制和 LCA 分析

Xu Liao¹, Raúl Miranda Avilés^2,3, Alma Hortensia Serafin Muñoz⁴

¹Doctoral Program of Water Science and Technology, Engineering Division, University of Guanajuato, 36000, Guanajuato, Guanajuato, Mexico.

Scientific reports

|September 5, 2024

概括

这项研究开发了一种铁浸的 henequen 纤维 (Fe/TBC) 吸附剂,用于有效地从水中去除. 在柱体测试中,Fe/TBC表现出高吸附能力和有效性,显示出对净化水的前景.

科学领域:

环境科学环境科学
材料科学材料科学材料科学
水处理处理水的方法

背景情况:

水中的污染对健康构成重大风险.
开发有效和可持续的吸附剂来去除是至关重要的.
基于铁的材料显示出修复的潜力.

研究的目的:

合成和评估一个铁浸的 torrefaction henequen纤维 (Fe/TBC) 吸附剂,用于去除.
研究Fe/TBC在批量和列系统中的吸附能力,机制和性能.
通过生命周期评估 (LCA) 评估Fe/TBC对环境的影响.

主要方法:

合成Fe/TBC通过浸铁到化 henequen 纤维.
同热和干扰吸附实验以确定吸附能力和影响因素.
使用FTIR和SEM-EDS进行表征以阐明吸附机制.
柱体实验用于处理和天然地下水.
使用OpenLCA软件进行生命周期评估 (LCA).

主要成果:

的最大吸附能力分别为7.30 mg/g和8.98 mg/g在25°C和40°C时.
吸附被高pH值,碳酸和湿酸抑制.
有效处理量为550毫升和8792毫升,分别用于和天然地下水.
在合成过程中,LCA表明了显著的影响,全球变暖潜力为0.8公斤CO2-eq/m3.

结论:

铁/TBC是一种有前途的,低能量的吸收剂,可以有效地从水溶液中去除.
吸附机制包括孔隙填充,静电相互作用,表面复杂化和H键粘附.
虽然合成对环境产生影响,但Fe/TBC显示了实际水处理应用的潜力.

关键词:

的吸附方式是的吸附方式.二氧化碳排放量排放的二氧化碳再生再生再生的过程造生物炭是一种生物炭.处理水处理水处理水处理

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