Enhanced sulfamethazine removal by steam-activated invasive plant-derived biochar

Journal of Hazardous Materials
Anushka Upamali RajapakshaYong Sik Ok

Abstract

Recent investigations have shown frequent detection of pharmaceuticals in soils and waters posing potential risks to human and ecological health. Here, we report the enhanced removal of sulfamethazine (SMT) from water by physically activated biochar. Specifically, we investigated the effects of steam-activated biochars synthesized from an invasive plant (Sicyos angulatus L.) on the sorption of SMT in water. The properties and sorption capacities of steam-activated biochars were compared with those of conventional non-activated slow pyrolyzed biochars. Sorption exhibited pronounced pH dependence, which was consistent with SMT speciation and biochar charge properties. A linear relationship was observed between sorption parameters and biochar properties such as molar elemental ratios, surface area, and pore volumes. The isotherms data were well described by the Freundlich and Temkin models suggesting favorable chemisorption processes and electrostatic interactions between SMT and biochar. The steam-activated biochar produced at 700 °C showed the highest sorption capacity (37.7 mg g(-1)) at pH 3, with a 55% increase in sorption capacity compared to that of non-activated biochar produced at the same temperature. Therefore, steam act...Continue Reading

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Citations

Jun 10, 2015·The Science of the Total Environment·Mohammad Boshir AhmedWenshan Guo
Jun 19, 2016·Environmental Geochemistry and Health·Tharanga BandaraMeththika Vithanage
Aug 25, 2016·Environmental Science and Pollution Research International·S S MayakaduwaMeththika Vithanage
Jun 25, 2019·Journal of Experimental Botany·Zhixiang JiangBaoshan Xing
Aug 14, 2020·Environmental Science. Processes & Impacts·Yuchi ZhongYong Sik Ok
Aug 19, 2017·Environmental Geochemistry and Health·Awanthi WathukarageMeththika Vithanage
Nov 28, 2018·Current Drug Metabolism·Anjali ChauhanShekhar Agnihotri
Sep 23, 2020·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Joydeep Dutta, Aijaz Ahmad Mala
Dec 14, 2016·Environmental Science and Pollution Research International·Lan WeiZhongzhen Liu
Feb 13, 2020·Bulletin of Environmental Contamination and Toxicology·Yan-Qin YangHe Liu
May 30, 2017·Environmental Science and Pollution Research International·Shaohua WuZhenfeng Han
Mar 30, 2019·Environmental Science and Pollution Research International·Munir AhmadMohammad I Al-Wabel
Jul 23, 2020·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Jesús Gabriel Rangel-PerazaYaneth A Bustos-Terrones
Jan 4, 2021·Journal of Environmental Management·S KeerthananMeththika Vithanage
Mar 15, 2021·The Science of the Total Environment·Ruju ZhangZhanhai Wu
Aug 3, 2021·TheScientificWorldJournal·Javier Andrés Quintero-JaramilloNancy Rocío Sanabria-González
Jul 16, 2021·Environmental Science and Pollution Research International·Jonathan W C Wong, Uchenna O Ogbonnaya

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