中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Investigation on mechanism of phosphate removal on carbonized sludge adsorbent

文献类型:期刊论文

作者Zhang, Lei; Liu, Junxin; Guo, Xuesong
刊名JOURNAL OF ENVIRONMENTAL SCIENCES
出版日期2018-02-01
卷号64页码:335-344
关键词Sewage sludge Carbonization Phosphate removal Mechanism
ISSN号1001-0742
文献子类Article
英文摘要For the removal of phosphate (PO43-) from water, an adsorbent was prepared via carbonization of sewage sludge from a wastewater treatment plant: carbonized sludge adsorbent (CSA). The mechanism of phosphate removal was determined after studying the structure and chemical properties of the CSA and its influence on phosphate removal. The results demonstrate that phosphate adsorption by the CSA can be fitted with the pseudo second-order kinetics and Langmuir isotherm models, indicating that the adsorption is single molecular layer adsorption dominated by chemical reaction. The active sites binding phosphate on the surface are composed of mineral particles containing Si/Ca/Al/Fe. The mineral containing Ca, calcite, is the main factor responsible for phosphate removal. The phosphate removal mechanism is a complex process including crystallization via the interaction between Ca2+ and PO43-; formation of precipitates of Ca2+, Al3+, and PO43-; and adsorption of PO43- on somerecalcitrant oxides composed of Si/Al/Fe. (c) 2017 The Research Center for Eco- Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
源URL[http://ir.rcees.ac.cn/handle/311016/41207]  
专题生态环境研究中心_水污染控制实验室
推荐引用方式
GB/T 7714
Zhang, Lei,Liu, Junxin,Guo, Xuesong. Investigation on mechanism of phosphate removal on carbonized sludge adsorbent[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2018,64:335-344.
APA Zhang, Lei,Liu, Junxin,&Guo, Xuesong.(2018).Investigation on mechanism of phosphate removal on carbonized sludge adsorbent.JOURNAL OF ENVIRONMENTAL SCIENCES,64,335-344.
MLA Zhang, Lei,et al."Investigation on mechanism of phosphate removal on carbonized sludge adsorbent".JOURNAL OF ENVIRONMENTAL SCIENCES 64(2018):335-344.

入库方式: OAI收割

来源:生态环境研究中心

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