Document Detail


Filtration performance of microporous ceramic supports.
MedLine Citation:
PMID:  17904640     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The use of inorganic membranes in pollution treatment is actually limited by the cost of such membranes. Advantages of inorganic membranes are their chemical, thermal and pH properties. The purpose of this work was the development of microporous ceramic materials based on clay for liquid waste processing. The supports or ceramic filters having various compositions were prepared and thermally treated at 1100 degrees C. The results show that, at the temperature studied, porosity varied according to the support composition from 12% for the double-layered (ceramic) support to 47% for the activated carbon- filled support with a mean pore diameter between 0.8 and 1.3 microm, respectively. Volumes of 5 l of distilled water were filtered tangentially for 3 h under an applied pressure of 3.5 and 5.5 bar. The retention of tubular supports prepared was tested with molecules of varying size (Evans blue, NaCl and Sacharose). The study of the liquid filtration and flow through these supports showed that the retention rate depends on support composition and pore diameter, and solute molecular weight. The S1 support (mixture of barbotine and 1% (w/w) activated carbon) gave a flux for distilled water of 68 L/m2 h while the double-layered support resulted in a flux of 8 L/m2 h for the same solution at the pressure of 3.5 bar. At a pressure of 5.5 bar an increase in the distilled water flux through the various supports was observed. It was significant for the S1 support (230 L/m h).
Authors:
Aissa Belouatek; Abdellah Ouagued; Mustapha Belhakem; Ahmed Addou
Publication Detail:
Type:  Journal Article     Date:  2007-09-05
Journal Detail:
Title:  Journal of biochemical and biophysical methods     Volume:  70     ISSN:  0165-022X     ISO Abbreviation:  J. Biochem. Biophys. Methods     Publication Date:  2008 Apr 
Date Detail:
Created Date:  2008-04-21     Completed Date:  2008-08-06     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  7907378     Medline TA:  J Biochem Biophys Methods     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  1174-9     Citation Subset:  IM    
Affiliation:
Laboratoire (SEA2M), faculté des sciences et sciences de l'ingénieur, université de Mostaganem, Algérie 27000. abelouatek@voila.fr
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MeSH Terms
Descriptor/Qualifier:
Absorption
Ceramics / chemistry*
Filtration / instrumentation*,  methods*
Hot Temperature
Minerals / chemistry
Porosity
Solutions
Chemical
Reg. No./Substance:
0/Ceramics; 0/Minerals; 0/Solutions

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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