磁性污泥基生物炭对水中四环素的吸附研究

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中图分类号：X703 文献标志码：A 文章编号：2095-2945（2025）34-0060-04

Abstract：Inordertorealizethecordinatedmanagementofsludgeresourceutilizationandantibioticpollutioninwater bodies，magneticsludge-basedbiochar（MSBC）waspreparedusing excesssludgeasrawmaterial through high temperature pyrolysis and modification with ferric sulfate，which was used to efficiently remove tetracycline（TC） in water. It was confirmed by SEM，XRD，BETandothercharacterizationsthatMSBC hasamesoporousdominant structure （specificsurfacearea of42.05m/g），andmagneticparticlesweresucessfullyloadedonthesurface.Adsorptionexperimentsshowedthatwhenthe dosage was 2.0g/L and pH=4， the equilibrium adsorption capacity of MSBC on TC was 34.2mg/g ，and the removal rate was （204号 88.3% .Theadsorption processconforms tothequasi-second-orderkineticmodelandtheLangmuirisothermal model.Itisa monolayeradsorption dominatedbychemical adsorption.Theadsorptionprocess mainlyreliesonFe-Obondcomplex， π-π interaction and the synergistic effect of hydrogen bonds.

Keywords：magnetism; pyrolysis;sludge-based biochar; tetracycline;adsorption

随着我国经济社会的快速发展，抗生素的滥用和环境污染越来越严重，其中四环素类抗生素的污染尤为突出。（剩余5318字）