Utilizing low-cost natural waste for the removal of pharmaceuticals from water: Mechanisms, isotherms and kinetics at low concentrations

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 城市与区域生态国家重点实验室

	Utilizing low-cost natural waste for the removal of pharmaceuticals from water: Mechanisms, isotherms and kinetics at low concentrations
	Li, Yuan 5; Taggart, Mark A.; McKenzie, Craig 1; Zhang, Zulin 5; Lu, Yonglong 2; Pap, Sabolc 3; Gibb, Stuart
刊名	JOURNAL OF CLEANER PRODUCTION
	2019-08-01
卷号	227 页码:88-97
关键词	Low-cost waste material Circular economy Water remediation Biosorption mechanisms Pharmaceuticals Sustainable development
ISSN号	0959-6526
英文摘要	The use of abundant natural wastes as environmentally friendly products promotes a circular green economy and cleaner production. The potential use of natural waste materials without additional processing for the removal of priority pharmaceuticals from water was investigated. Here, the performance of selected low-cost biosorbents (biochar, macro-algae and wood chippings) was evaluated using two extensively prescribed model pharmaceuticals: diclofenac (DCF) and trimethoprim (TMP). The physicochemical properties of the biosorbents were examined (to shed light on likely biosorption mechanisms) using Brunauer-Emmett-Teller (BET) measurements, scanning electron microscopy (SEM), zero point of charge (pH(zpc)) measurements and Fourier transform infrared spectroscopy (FTIR). Experimental data from kinetic studies fitted a pseudo-second order model, and multiple diffusion steps limited the mass transfer of analytes. Intra-partile diffusion was the rate limiting step for biochar, while macro-algae and wood chippings were limited (mainly) by adsorptive attachment. The equilibrium data for most of the studied systems best fitted a Langmuir model, while the Freundlich model provided a better fit for TMP with wood chippings. At mu g.L-1 initial pharmaceutical loading levels, the maximum biosorption capacity for DCF was attained with biochar (7.25 x 10(3) mu g g(-1)), while macro-algae performed best for TMP (7.14 x 10(4) mu g g(-1)). Both chemical and physical interactions were likely responsible for the biosorption of pharmaceuticals. High removal efficiencies were achieved at the low initial loadings studied, indicating the potential application of those sustainable low-cost biosorbents at low (environmentally relevant) pharmaceutical concentrations. (C) 2019 Elsevier Ltd. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/42482]
专题	生态环境研究中心_城市与区域生态国家重点实验室
作者单位	1.Univ Highlands & Isl, North Highland Coll, Environm Res Inst, Castle St, Thurso KW14 7JD, Caithness, Scotland 2.James Hutton Inst, Environm & Biochem Sci Grp, Aberdeen AB15 8QH, Scotland 3.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, 18 Shuangqing Rd, Beijing 100085, Peoples R China 4.Univ Novi Sad, Dept Environm Engn & Occupat Safety & Hlth, Fac Tech Sci, Novi Sad 21000, Serbia 5.Univ Dundee, Sch Sci & Engn, Forens Drug Res Grp, Ctr Anat & Human Identificat, Dundee DD1 4HN, Scotland
推荐引用方式 GB/T 7714	Li, Yuan,Taggart, Mark A.,McKenzie, Craig,et al. Utilizing low-cost natural waste for the removal of pharmaceuticals from water: Mechanisms, isotherms and kinetics at low concentrations[J]. JOURNAL OF CLEANER PRODUCTION,2019,227:88-97.
APA	Li, Yuan.,Taggart, Mark A..,McKenzie, Craig.,Zhang, Zulin.,Lu, Yonglong.,...&Gibb, Stuart.(2019).Utilizing low-cost natural waste for the removal of pharmaceuticals from water: Mechanisms, isotherms and kinetics at low concentrations.JOURNAL OF CLEANER PRODUCTION,227,88-97.
MLA	Li, Yuan,et al."Utilizing low-cost natural waste for the removal of pharmaceuticals from water: Mechanisms, isotherms and kinetics at low concentrations".JOURNAL OF CLEANER PRODUCTION 227(2019):88-97.