| Removal of fluoride ion from aqueous solution by a cerium-poly(hydroxamic acid) resin complex. | |
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MedLine Citation:
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PMID: 11460327 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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A cerium-loaded poly(hydroxamic acid) chelating ion exchanger was used for fluoride ion removal from aqueous solution. The resin was effective in decreasing the fluoride concentration from 5 mM down to 0.001 mM in acidic pH between 3 and 6. The sorption followed a Langmuir model with a maximum capacity of 0.5 mmol/g. The removal is accomplished by an anion exchange mechanism. The rate constant for the sorption was found to be 9.6 x 10(-2) min-1. A column test shows that the fluoride ion was retained on the column until breakthrough point and the fluoride sorbed in the column can be eluted with 0.1 M NaOH. The column can be reused after being condition with hydrochloric acid at pH 4. The resin was tested and found to be effective for removal of fluoride from actual industrial wastewater. |
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Authors:
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M J Haron; W M Yunus |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering Volume: 36 ISSN: 1093-4529 ISO Abbreviation: J Environ Sci Health A Tox Hazard Subst Environ Eng Publication Date: 2001 May |
Date Detail:
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Created Date: 2001-07-19 Completed Date: 2001-12-04 Revised Date: 2009-08-14 |
Medline Journal Info:
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Nlm Unique ID: 9812551 Medline TA: J Environ Sci Health A Tox Hazard Subst Environ Eng Country: United States |
Other Details:
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Languages: eng Pagination: 727-34 Citation Subset: IM |
Affiliation:
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Chemistry Department, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia. mdjelas@fsas.upm.edu.my |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Cerium
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chemistry* Chelating Agents / chemistry* Fluorides / chemistry* Hydrogen-Ion Concentration Hydroxamic Acids / chemistry* Industrial Waste Kinetics Resins, Plant / chemistry Waste Disposal, Fluid / methods* |
| Chemical | |
Reg. No./Substance:
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0/Chelating Agents; 0/Fluorides; 0/Hydroxamic Acids; 0/Industrial Waste; 0/Resins, Plant; 7440-45-1/Cerium |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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