| Membrane based strategies for the pre-treatment of acid dye bath wastewaters. | |
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MedLine Citation:
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PMID: 16442219 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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This paper, as part of a study carried out for the recovery of the acid dye bath wastewaters of a carpet manufacturing industry by membrane processes, describes the evaluation of alternative strategies for the pre-treatment of acid dye bath wastewaters. Dead-end microfiltration (MF) simulating sand filtration with MF media having pore sizes of 2.5, 1.0, 0.45 and 0.2 microm and ultrafiltration (UF) with an UF membrane having a molecular weight cut off (MWCO) of 50,000 Da were tested in single and sequential stages in order to achieve the best treatment efficiency. Four alternative process trains were tested; single MF, sequential MF, single UF, and MF followed by UF. For both MF and UF, application of sequential filtration did not provide any significant benefit over single processes. In addition, chemical oxygen demand (COD) removal performance of all the alternative processes was similar where the highest removal was only 5%. On the other hand, color removals were much better; ranging from 15 to 100%, even with single MF. Comparison of all the process alternatives revealed that, single MF (0.45 microm), as the simplest process, is the most suitable pre-treatment method for the acid dye bath wastewaters. |
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Authors:
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Goksen Capar; Ulku Yetis; Levent Yilmaz |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2006-01-25 |
Journal Detail:
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Title: Journal of hazardous materials Volume: 135 ISSN: 0304-3894 ISO Abbreviation: J. Hazard. Mater. Publication Date: 2006 Jul |
Date Detail:
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Created Date: 2006-05-30 Completed Date: 2006-10-26 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 9422688 Medline TA: J Hazard Mater Country: Netherlands |
Other Details:
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Languages: eng Pagination: 423-30 Citation Subset: IM |
Affiliation:
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Environmental Engineering Department, Middle East Technical University, 06531 Ankara, Turkey. goksencapar@yahoo.co.uk |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Acids
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chemistry* Coloring Agents / chemistry* Filtration Waste Disposal, Fluid / methods* Water Pollutants, Chemical* |
| Chemical | |
Reg. No./Substance:
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0/Acids; 0/Coloring Agents; 0/Water Pollutants, Chemical |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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