Preparation of composite sludge carbon-based materials by LDHs conditioning and carbonization and its application in the simultaneous removal of dissolved organic matter and phosphate in sewage
文献类型：期刊论文
| 作者 | Zhang, Weijun; Dong, Tianyi; Cheng, Haowan; Wu, Hanjun; Wu, Chunxu; Hu, Aibin; Wang, Dongsheng |
| 刊名 | CHEMOSPHERE
 |
| 出版日期 | 2021-05 |
| 卷号 | 270页码:- |
| 关键词 | Layered double hydroxides Sludge Biological carbon Wastewater treatment |
| ISSN号 | 0045-6535 |
| 英文摘要 | In this work, a novel carbon-based hydrotalcite-like compounds materials (LDO-SBCs) were prepared by coupling layered double hydroxides (LDHs) conditioning and pyrolytic carbonization, and characterized by X-ray diffraction (XRD), Thermogravimetric Analyzer (TGA), X-ray photoelectron spectroscopy (XPS) and Brunner-Emmet-Teller (BET) measurements. The synthesized LDO-SBCs composites were used in wastewater treatment for simultaneous removal of phosphate and dissolved organic matter (DOM). The adsorption of DOM and phosphate were well conformed to pseudo-second-order mode. Adsorption equilibrium was better fitted by Langmuir model for phosphate, while Freundlich model for DOM. Compared with the raw sludge carbon, the removal efficiency of DOM and phosphate by LDO-SBCs were increased by 8% and 13%, respectively. Based on the fluorescence spectrum and parallel factor analysis (PARAFAC), LDO-SBCs performed well in promoting the removal of protein substances (TPN and APN). Pore filling, hydrogen bonding, electrostatic adsorption and surface complexation might be dominant in the adsorption of DOM, while, surface complexation and ion exchange between the LDO layers were mainly responsible for the adsorption of phosphate. The difference of adsorption capacity of LDO-SBCs was related to the superior channel structure of composite materials and the composition of interlayer anions of LDO. (C) 2020 Published by Elsevier Ltd. |
| WOS研究方向 | Environmental Sciences |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45980]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Aquat Chem, Beijing 100085, Peoples R China 2.China Univ Geosci, Sch Environm Studies, Wuhan 430074, Hubei, Peoples R China 3.Wuhan Inst Technol, Sch Chem & Environm Engn, Wuhan 430074, Hubei, Peoples R China 4.China Univ Geosci, Hubei Prov Engn Res Ctr Systemat Water Pollut Con, Wuhan 430074, Hubei, Peoples R China 5.Tsinghua Univ, Sch Environm, Beijing 100085, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Weijun,Dong, Tianyi,Cheng, Haowan,et al. Preparation of composite sludge carbon-based materials by LDHs conditioning and carbonization and its application in the simultaneous removal of dissolved organic matter and phosphate in sewage[J]. CHEMOSPHERE,2021,270:-. |
| APA | Zhang, Weijun.,Dong, Tianyi.,Cheng, Haowan.,Wu, Hanjun.,Wu, Chunxu.,...&Wang, Dongsheng.(2021).Preparation of composite sludge carbon-based materials by LDHs conditioning and carbonization and its application in the simultaneous removal of dissolved organic matter and phosphate in sewage.CHEMOSPHERE,270,-. |
| MLA | Zhang, Weijun,et al."Preparation of composite sludge carbon-based materials by LDHs conditioning and carbonization and its application in the simultaneous removal of dissolved organic matter and phosphate in sewage".CHEMOSPHERE 270(2021):-. |
入库方式： OAI收割
来源：生态环境研究中心
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。