Document Detail


Adhesion of Escherichia coli to iron-coated sand in the presence of humic acid: a column experiment.
MedLine Citation:
PMID:  19323282     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Column experiments were performed to examine the influence of humic acid on the attachment of Escherichia coli to iron-coated sand. Results show that, in the coated sand, the average mass recovery was 2.9% in deionized water and increased sharply to 94.6% at a humic acid concentration of 16 mg/L. In leaching solution containing both humic acid and phosphate, the mass recovery increased from 26.0 to 94.6%, by increasing the portion of humic acid from 0 to 100% (from 0 to 16 mg/L). In addition, the mass recovery (94.6%) at a humic acid concentration of 16 mg/L was much larger than that (26.0%) at the same concentration of phosphate. This study presents information regarding the role of humic acid in the adhesion of bacteria to iron-coated sand and helps to enhance the knowledge of bacterial removal in positively charged porous media.
Authors:
Seong-Jik Park; Song-Bae Kim
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Water environment research : a research publication of the Water Environment Federation     Volume:  81     ISSN:  1061-4303     ISO Abbreviation:  Water Environ. Res.     Publication Date:  2009 Feb 
Date Detail:
Created Date:  2009-03-27     Completed Date:  2009-04-23     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9886167     Medline TA:  Water Environ Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  125-30     Citation Subset:  IM    
Affiliation:
Environmental Biocolloid Engineering Laboratory, Program in Rural System Engineering, Seoul National University, Seoul, Korea.
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MeSH Terms
Descriptor/Qualifier:
Bacterial Adhesion*
Drainage, Sanitary
Escherichia coli / isolation & purification*,  physiology
Humic Substances*
Iron
Silicon Dioxide / chemistry*
Water Movements
Water Purification*
Chemical
Reg. No./Substance:
0/Humic Substances; 7439-89-6/Iron; 7631-86-9/Silicon Dioxide

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


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