| Removal of H2S in down-flow GAC biofiltration using sulfide oxidizing bacteria from concentrated latex wastewater. | |
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MedLine Citation:
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PMID: 18619836 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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A biofiltration system with sulfur oxidizing bacteria immobilized on granular activated carbon (GAC) as packing materials had a good potential when used to eliminate H(2)S. The sulfur oxidizing bacteria were stimulated from concentrated latex wastewater with sulfur supplement under aerobic condition. Afterward, it was immobilized on GAC to test the performance of cell-immobilized GAC biofilter. In this study, the effect of inlet H(2)S concentration, H(2)S gas flow rate, air gas flow rate and long-term operation on the H(2)S removal efficiency was investigated. In addition, the comparative performance of sulfide oxidizing bacterium immobilized on GAC (biofilter A) and GAC without cell immobilization (biofilter B) systems was studied. It was found that the efficiency of the H(2)S removal was more than 98% even at high concentrations (200-4000 ppm) and the maximum elimination capacity was about 125 g H(2)S/m(3)of GAC/h in the biofilter A. However, the H(2)S flow rate of 15-35 l/h into both biofilters had little influence on the efficiency of H(2)S removal. Moreover, an air flow rate of 5.86 l/h gave complete removal of H(2)S (100%) in biofilter A. During the long-term operation, the complete H(2)S removal was achieved after 3-days operation in biofilter A and remained stable up to 60-days. |
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Authors:
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Cheerawit Rattanapan; Piyarat Boonsawang; Duangporn Kantachote |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2008-07-10 |
Journal Detail:
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Title: Bioresource technology Volume: 100 ISSN: 1873-2976 ISO Abbreviation: Bioresour. Technol. Publication Date: 2009 Jan |
Date Detail:
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Created Date: 2008-09-15 Completed Date: 2008-12-29 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9889523 Medline TA: Bioresour Technol Country: England |
Other Details:
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Languages: eng Pagination: 125-30 Citation Subset: IM |
Affiliation:
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Department of Industrial Biotechnology, Prince of Songkla University, Hat Yai, Songkhla, Thailand. cheerawit@hotmail.com |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Bacteria, Aerobic
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metabolism* Biodegradation, Environmental Bioreactors / microbiology* Computer Simulation Hydrogen Sulfide / isolation & purification, metabolism* Industrial Waste / prevention & control Latex / metabolism* Models, Biological* Sulfides / metabolism* Ultrafiltration / methods Water Pollutants, Chemical / metabolism* |
| Chemical | |
Reg. No./Substance:
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0/Industrial Waste; 0/Latex; 0/Sulfides; 0/Water Pollutants, Chemical; 7783-06-4/Hydrogen Sulfide |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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