Department of Chemistry and CESAM (Centre for Environmental and Marine Studies), University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal.
Department of Chemistry and CESAM (Centre for Environmental and Marine Studies), University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal.
Bioresour Technol. 2014 Aug;166:335-44. doi: 10.1016/j.biortech.2014.05.047. Epub 2014 May 23.
This work describes the production of alternative adsorbents from industrial residues and their application for the removal of a highly consumed antidepressant (citalopram) from water. The adsorbents were produced by pyrolysis of both primary and biological paper mill sludge at different temperatures and residence times. The original sludge and the produced chars were fully characterized by elemental and proximate analyses, total organic carbon, specific surface area (BET), N₂ isotherms, FTIR, (13)C and (1)H solid state NMR and SEM. Batch kinetic and equilibrium experiments were carried out to describe the adsorption of citalopram onto the produced materials. The fastest kinetics and the highest adsorption capacity were obtained using primary sludge pyrolysed at 800 °C during 150 min. The use of pyrolysed paper mill sludge for the remediation of contaminated waters might constitute an interesting application for the valorization of those wastes.
这项工作描述了从工业废料中生产替代吸附剂及其在水中去除高消耗抗抑郁药（西酞普兰）的应用。吸附剂通过在不同温度和停留时间下对原生和生物造纸厂污泥进行热解来制备。原始污泥和制备的炭通过元素和近似分析、总有机碳、比表面积（BET）、N₂等温线、FTIR、（13）C 和（1）H 固态 NMR 和 SEM 进行了全面表征。进行了批量动力学和平衡实验以描述西酞普兰在制备材料上的吸附。使用在 800°C 下热解 150 分钟的原生污泥获得了最快的动力学和最高的吸附容量。使用造纸厂污泥热解产物修复受污染的水可能是对这些废物进行增值利用的一个有趣应用。
