Removal of Cr(VI) ions by sewage sludge compost biomass from aqueous solutions: Reduction to Cr(III) and biosorption
Chen, Huixia1,2,3; Dou, Jungfeng1; Xu, Hongbin2,3
2017-12-15
发表期刊APPLIED SURFACE SCIENCE
ISSN0169-4332
卷号425期号:DEC页码:728-735
摘要

Sewage sludge compost biomass was used as a novel biosorbent to remove hexavalent chromium from water. Surface area analysis, scanning electron microscopy, fourier-transform infrared spectroscopy, energy-dispersive X-ray spectroscopy, and point zero charge was applied to study the microstructure, compositions and chemical bonding states of the biomass adsorbent. Effects of contact time, biomass dosage, agitation speed, pH, the initial concentration of Cr(VI) and Cr(III) on its adsorption removal were also performed in the batch experiments. A model describing adsorption, desorption and reduction phenomena during the sorption process has been referenced to model Cr(VI) sorption onto sewage sludge compost biomass. The result of characterization test shows that adsorption of Cr(VI) onto sewage sludge compost biomass followed by the partial reduction to Cr(III) by biomass groups such as hydroxyl, carboxyl, and amino groups. The absorption kinetics model in the description of adsorption-coupled reduction of Cr(VI) fits successfully the kinetic data obtained at different temperatures and describes the kinetics profile of total, hexavalent and trivalent chromium. The study shows that sewage sludge compost biomass could be used as a potential biosorbent for removal of hexavalent chromium from wastewaters. (C) 2017 Elsevier B.V. All rights reserved.

关键词Sewage Sludge Compost Biomass Biosorption Cr(Vi) Isotherms Kinetics Model
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1016/j.apsusc.2017.07.053
收录类别SCI
语种英语
关键词[WOS]HEXAVALENT CHROMIUM REMOVAL ; FIXED-BED COLUMN ; ADSORPTION ; WASTE ; BATCH ; WATER ; DESORPTION ; ADSORBENT ; KINETICS ; NICKEL
WOS研究方向Chemistry ; Materials Science ; Physics
WOS类目Chemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter
项目资助者National Natural Science Foundation of China(21376251 ; National Basic Research Development Program of China(2013CB632600) ; 21406233)
WOS记录号WOS:000410609400089
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/23232
专题湿法冶金清洁生产技术国家工程实验室
作者单位1.Beijing Normal Univ, Coll Water Sci, Beijing 100875, Peoples R China
2.Chinese Acad Sci, Keb Lab Green Proc & Engn, Beijing 100190, Peoples R China
3.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
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Chen, Huixia,Dou, Jungfeng,Xu, Hongbin. Removal of Cr(VI) ions by sewage sludge compost biomass from aqueous solutions: Reduction to Cr(III) and biosorption[J]. APPLIED SURFACE SCIENCE,2017,425(DEC):728-735.
APA Chen, Huixia,Dou, Jungfeng,&Xu, Hongbin.(2017).Removal of Cr(VI) ions by sewage sludge compost biomass from aqueous solutions: Reduction to Cr(III) and biosorption.APPLIED SURFACE SCIENCE,425(DEC),728-735.
MLA Chen, Huixia,et al."Removal of Cr(VI) ions by sewage sludge compost biomass from aqueous solutions: Reduction to Cr(III) and biosorption".APPLIED SURFACE SCIENCE 425.DEC(2017):728-735.
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