中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 过程工程研究所
  3. 中国科学院过程工程研究所
Stabilization of iron-arsenic deposits by encapsulation with montmorillonite inorganic gels

文献类型：期刊论文

作者Yan, Jingmin1,2; Wang, Yongliang2,3; Wang, Yanhua1,2; Liu, Xiang1,2; Ye, Shufeng2,3
刊名ENVIRONMENTAL ENGINEERING RESEARCH
出版日期2022-04-01
卷号27期号:2页码:9
关键词Arsenic Encapsulation Gel Ion-exchange Montmorillonite Stabilization
ISSN号1226-1025
DOI10.4491/eer.2020.671
英文摘要Encapsulation is recognized as an effective technique for enhancing the stability of hazardous waste by coating it with an inert material. In this work, an eco-friendly montmorillonite (Mt) inorganic gel with the characteristics of high viscosity, adsorption and easy preparation was developed and coated on the surface of iron-arsenic deposits (IAD) to restrain the release of arsenic (As). The encapsulation system investigated involves Mt/IAD mass ratio and aging temperature of the coated iron-arsenic deposits (C-IAD). The C-IAD was characterized by XRF, XRD, SEM-EDS, TEM, FTIR and BET. The results revealed that the IAD was completely encapsulated by the montmorillonite inorganic gel. From the experiment of stability, when IAD was coated with montmorillonite inorganic gel (Mt/IAD mass ratio 0.75) and aged at 25???, As release decreased from 3.15 mg/L to 0.64 mg/L at pH 5 after 24 h, and then dropped to 0.11 mg/L after 7 d. Furthermore, the results indicated that the IAD encapsulated with montmorillonite inorganic gel was effective in suppressing the release of As under both weakly acidic and alkaline conditions.
WOS关键词EARLY-STAGE HYDRATION ; C-S-H ; SCORODITE ; WATER ; IMMOBILIZATION ; TEMPERATURE ; SOLUBILITY ; STABILITY ; REMOVAL
资助项目Innovation Academy for Green Manufacture, Chinese Academy of Sciences[IAGM-2019-A05] ; National Key Research and Development Program[2019YFC1904204]
WOS研究方向Engineering ; Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000816885300004
出版者KOREAN SOC ENVIRONMENTAL ENGINEERS - KSEE
资助机构Innovation Academy for Green Manufacture, Chinese Academy of Sciences ; National Key Research and Development Program
源URL[http://ir.ipe.ac.cn/handle/122111/54037]  
专题中国科学院过程工程研究所
通讯作者Ye, Shufeng
作者单位1.Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
3.Chinese Acad Sci, Innovat Acad Green Manufacture, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Yan, Jingmin,Wang, Yongliang,Wang, Yanhua,et al. Stabilization of iron-arsenic deposits by encapsulation with montmorillonite inorganic gels[J]. ENVIRONMENTAL ENGINEERING RESEARCH,2022,27(2):9.
APA Yan, Jingmin,Wang, Yongliang,Wang, Yanhua,Liu, Xiang,&Ye, Shufeng.(2022).Stabilization of iron-arsenic deposits by encapsulation with montmorillonite inorganic gels.ENVIRONMENTAL ENGINEERING RESEARCH,27(2),9.
MLA Yan, Jingmin,et al."Stabilization of iron-arsenic deposits by encapsulation with montmorillonite inorganic gels".ENVIRONMENTAL ENGINEERING RESEARCH 27.2(2022):9.

入库方式： OAI收割

来源：过程工程研究所

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。