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Ying Xiong¹, Erping Bi²

¹School of Water Resources and Environment, MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, and Beijing Key Laboratory of Water Resources and Environmental Engineering, China University of Geosciences (Beijing), Beijing, 100083, People's Republic of China.

Environmental science and pollution research international

|May 30, 2023

概括

生物炭衍生溶解有机物 (BDOM) 释放会通过改变生物炭结构和形成复合体,对四环素 (TC) 吸附产生负面影响. 由于BDOM释放而导致生物炭的结构变化是抑制TC吸附的主要因素.

科学领域:

环境化学环境化学
材料科学材料科学材料科学
土壤科学土壤科学

背景情况:

生物炭衍生溶解有机物 (BDOM) 可以影响污染物的环境命运.
了解BDOM相互作用对于评估生物炭在污染补救方面的有效性至关重要.

研究的目的:

为了研究BDOM从玉米生物炭中的释放动力学.
为了确定BDOM释放对四环素 (TC) 吸附在生物炭上的影响.
阐明抑制TC吸附的机制.

主要方法:

进行了批量实验来研究BDOM释放和TC吸附.
微观表征技术被用来分析生物炭的特性.
使用EEM-PARFAC分析来描述BDOM组件及其与TC的结合.

主要成果:

释放的BDOM减少了生物炭的特定表面积,半孔数和芳香度.
释放的BDOM与TC形成复合物,阻碍其吸附.
生物炭的结构变化对TC吸附具有比BDOM-TC复杂化更显著的抑制作用.

结论:

释放的BDOM显著降低了生物炭的TC吸附能力.
在BDOM中,类似酸的成分与TC的结合比类似托的成分更强.
结果提供了关于生物炭在土壤和水中去除有机污染物的应用的见解.

关键词:

吸附方式吸附方式吸附方式生物炭是一种生物炭.复杂化的复杂化内生生物碳衍生溶解有机物质.四环素 (TC) 是一种四环素.

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