生物炭
热解
吸附
废水
化学
环境化学
砷
氧化铁
资源回收
废物管理
有机化学
工程类
作者
Lu Zhou,G. Zhang,Yulin Zeng,Xunli Bao,Bei Liu,Liang Cheng
出处
期刊:Chemosphere
[Elsevier]
日期:2024-05-01
卷期号:: 142263-142263
被引量:1
标识
DOI:10.1016/j.chemosphere.2024.142263
摘要
Steel mill wastewater sludge, as an iron-enriched solid waste, was expected to be converted into iron-enriched biochar with acceptable environmental risk by pyrolysis. The purpose of our study was to evaluate the chemical speciation transformation of heavy metals in biochar under various pyrolysis temperatures and its reutilization for tetracycline (TC) removal. The experimental data indicated that pyrolysis temperature was a key factor affecting the heavy metals speciation and bioavailability in biochar, and biochar with pyrolysis temperature at 450 °C was the most feasible for reutilization without potential risk. The endogenous iron-enriched biochar (FSB450) showed highly efficient adsorption towards TC, and its maximum adsorption capacity could reach 240.38 mg g
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