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An eco-friendly approach for NaCl recovery from organic pollutants-containing waste salt by roasting together with low-grade pyrolusite
Ju, Jinrong1,2,3; Feng, Yali1; Li, Haoran2,3; Li, Xin1,2,3; Zhang, Qian1; Xu, Chenglong1,2,3; Liu, Shunliang1
2021-11-01
Source PublicationENVIRONMENTAL TECHNOLOGY & INNOVATION
ISSN2352-1864
Volume24Pages:15
AbstractA large amount of organic pollutants-containing waste salt is produced in chemical production process, which is usually filled or deposited without treatment, causing serious environmental pollution and a waste of salt resource. In this work, in order to reduce the emission of toxic and harmful gasses and make full use of the organic matter component in waste salt, pyrolusite was used as an absorbent in the process of high-temperature pyrolysis of waste salt, of which MnO2 was reduced to MnO while absorbing harmful gasses. The dual effects of roasting to remove organic pollutants from the waste salt and increase manganese leaching efficiency were systematically investigated, and the roasting mechanism and process were explored. Co-recovery of NaCl from organic pollutants-containing waste salt and manganese from pyrolusite ore was achieved. The results indicated that the optimum the removal efficiency of organic matter in the waste salt could be reached 99.45%, the purity of recovered NaCl products was 99.83% and leaching efficiency of 99.62% for manganese under the mass ratio of waste salt to pyrolusite of 8:5, the co-roasting temperature of 650 degrees C, and the roasting time of 40 min. (c) 2021 Elsevier B.V. All rights reserved.
KeywordThe waste salt The recovery of NaCl Pyrolusite Pyrolysis Manganese leaching
DOI10.1016/j.eti.2021.101903
Language英语
WOS KeywordMUNICIPAL SOLID-WASTE ; REDUCTION ; PYROLYSIS
Funding Projectlong term special project for National, China[JS-KTHT-2019-01] ; long term special project for National, China[DY135-B2-15] ; key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
WOS Research AreaBiotechnology & Applied Microbiology ; Engineering ; Environmental Sciences & Ecology
WOS SubjectBiotechnology & Applied Microbiology ; Engineering, Environmental ; Environmental Sciences
Funding Organizationlong term special project for National, China ; key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
WOS IDWOS:000709091400014
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/50720
Collection中国科学院过程工程研究所
Corresponding AuthorJu, Jinrong; Feng, Yali; Li, Haoran
Affiliation1.Univ Sci & Technol Beijing, Civil & Resource Engn Sch, Beijing 100083, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Key Lab Biochem Engn, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Ju, Jinrong,Feng, Yali,Li, Haoran,et al. An eco-friendly approach for NaCl recovery from organic pollutants-containing waste salt by roasting together with low-grade pyrolusite[J]. ENVIRONMENTAL TECHNOLOGY & INNOVATION,2021,24:15.
APA Ju, Jinrong.,Feng, Yali.,Li, Haoran.,Li, Xin.,Zhang, Qian.,...&Liu, Shunliang.(2021).An eco-friendly approach for NaCl recovery from organic pollutants-containing waste salt by roasting together with low-grade pyrolusite.ENVIRONMENTAL TECHNOLOGY & INNOVATION,24,15.
MLA Ju, Jinrong,et al."An eco-friendly approach for NaCl recovery from organic pollutants-containing waste salt by roasting together with low-grade pyrolusite".ENVIRONMENTAL TECHNOLOGY & INNOVATION 24(2021):15.
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