Nitrite Removal Using Ion Exchange Resin: Batch vs. Fixed Bed Performance | |
Li, Haigang; Yang, Chuanfang | |
2015-07-24 | |
Source Publication | SEPARATION SCIENCE AND TECHNOLOGY
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ISSN | 0149-6395 |
Volume | 50Issue:11Pages:1721-1730 |
Abstract | Nitrite is an important pollutant appearing in the large amount of wastewater from flue gas denitrification process. Its removal is essential for wastewater discharge or reuse. In this paper, we made an attempt to remove nitrite using ion exchange resin (IXR) by conducting batch experiments first, in which adsorption equilibrium and kinetics were determined. Fixed bed experiments were then carried out to investigate bed breakthrough and elution behavior. Isotherm data showed that nitrite adsorption on IXR fitted Freundlich model better than Langmuir model. Kinetic data from batch experiments were well correlated with second-order reversible kinetics model. From bed experiments, it was found that increase in flow rate and inlet concentration decreased breakthrough time, but the capacity of saturated adsorption stayed almost the same. It was also found that the capacity of adsorption decreased in the presence of other anions. Breakthrough curves under various operating conditions were well predicted by the Thomas model, and nitrite ions adsorbed in the bed could be completely eluted by using 3.0 wt% NaCl solution at flow rate of 3.0 L center dot h(-1). |
Keyword | Nitrite Ion Exchange Breakthrough Curves Thomas Model Elution |
Subtype | Article |
WOS Headings | Science & Technology ; Physical Sciences ; Technology |
DOI | 10.1080/01496395.2014.990099 |
Indexed By | SCI |
Language | 英语 |
WOS Keyword | AQUEOUS-SOLUTION ; NITRATE REMOVAL ; WASTE-WATER ; ADSORPTION ; MEMBRANE ; EQUILIBRIUM ; CARBON ; STRAW |
WOS Research Area | Chemistry ; Engineering |
WOS Subject | Chemistry, Multidisciplinary ; Engineering, Chemical |
WOS ID | WOS:000357021400017 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.ipe.ac.cn/handle/122111/19324 |
Collection | 湿法冶金清洁生产技术国家工程实验室 |
Affiliation | Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China |
Recommended Citation GB/T 7714 | Li, Haigang,Yang, Chuanfang. Nitrite Removal Using Ion Exchange Resin: Batch vs. Fixed Bed Performance[J]. SEPARATION SCIENCE AND TECHNOLOGY,2015,50(11):1721-1730. |
APA | Li, Haigang,&Yang, Chuanfang.(2015).Nitrite Removal Using Ion Exchange Resin: Batch vs. Fixed Bed Performance.SEPARATION SCIENCE AND TECHNOLOGY,50(11),1721-1730. |
MLA | Li, Haigang,et al."Nitrite Removal Using Ion Exchange Resin: Batch vs. Fixed Bed Performance".SEPARATION SCIENCE AND TECHNOLOGY 50.11(2015):1721-1730. |
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Nitrite Removal Usin(611KB) | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | Application Full Text |
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