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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