粉煤灰对磺胺嘧啶抗生素污染地下水的修复效果研究  

Study on the Remediation Effect of Fly Ash on Groundwater Contaminated by Sulfadiazine Antibiotics

作　　者：李钊 李钧 刘肖然 于明远 高爱舫 宋泽峰 LI Zhao;LI Jun;LIU Xiaoran;YU Mingyuan;GAO Aifang;SONG Zefeng(Hebei GEO University,Shijiazhuang 050031,China;Hebei Province Collaborative Innovation Center for Sustainable Utilization of Water Resources and Optimization of Industrial Structure,Shijiazhuang 050031,China)

机构地区：[1]河北地质大学,河北石家庄050031 [2]河北省水资源可持续利用与产业结构优化协同创新中心,河北石家庄050031

出　　处：《河北地质大学学报》2025年第2期94-100,128,共8页Journal of Hebei Geo University

基　　金：河北省水资源可持续利用与产业结构优化协同创新中心开放基金(XTCX202404,XTZX07)。

摘　　要：由于磺胺嘧啶的大量使用造成水体环境污染,因此如何有效去除磺胺嘧啶成为研究热点。可渗透反应墙作为一种地下水污染的原位修复技术,近年来得到广泛关注,寻找高效的介质材料是可渗透反应墙技术的关键。论文通过静态批实验和可渗透反应墙反应器的模拟动态柱实验,研究粉煤灰对磺胺嘧啶的吸附、迁移性能;通过扫描电子显微镜及红外光谱测定粉煤灰的结构特征和性质,分析粉煤灰对磺胺嘧啶的吸附过程。研究结果表明:粉煤灰表面粗糙,比表面积较大,为磺胺嘧啶在粉煤灰上的吸附提供了丰富的吸附位点。在静态吸附特征的拟合过程中,Freundlich方程拟合性效果最好;磺胺嘧啶浓度在5 mg/L时,去除率达到85%。研究结果可为可渗透反应墙技术在地下水抗生素污染修复中的材料选择提供一定参考。Since the large-scale use of sulfadiazine causes water environmental pollution,how to effectively remove sulfadiazine has become a research hot spot.Permeable reactive barrier as an in-situ remediation technology for groundwater pollution has received widespread attention in recent years.Finding efficient medium materials is the key to permeable reactive barrier technology.In this paper,the adsorption and migration properties of fly ash on sulfadiazine were studied through static batch experiments and simulated dynamic column experiments of permeable reactive barrier reactors;the structural characteristics and properties of fly ash were determined by scanning electron microscopy and infrared spectroscopy,and the adsorption process of fly ash on sulfadiazine was analyzed.The research results show that the surface of fly ash is rough and the specific surface area is large,which provides abundant adsorption sites for the adsorption of sulfadiazine on fly ash.In the process of fitting the static adsorption characteristics,the Freundlich equation has the best fitting effect;when the concentration of sulfadiazine is 5 mg/L,the removal rate reaches 85%.The research results can provide a certain reference for the material selection of permeable reactive barrier technology in the remediation of groundwater antibiotic pollution.

关 键 词：磺胺嘧啶 粉煤灰 吸附迁移 抗生素污染地下水 

分 类 号：X53[环境科学与工程—环境工程]