| The removal of thermo-tolerant coliform bacteria by immobilized waste stabilization pond algae. | |
| | |
MedLine Citation:
|
PMID: 21436540 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
|
This study investigated the potential of laboratory- scale columns of immobilized micro-algae to disinfect effluents using thermo-tolerant coliforms (TTC) as a model system. Cells of a Chlorella species isolated from a waste stabilization pond complex in Northeast Brazil were immobilized in calcium alginate, packed into glass columns and incubated in contact with TTC suspensions for up to 24 hours. Five to six log removals of TTC were achieved in 6 hours and 11 log removals in 12 hours contact time. The results were similar under artificial light and shaded sunlight. However little or no TTC removal occurred in the light in columns of alginate beads without immobilized algae present or when the immobilized algae were incubated in the dark suggesting that the presence of both algae and light were necessary for TTC decay. There was a positive correlation between K(b) values for TTC and increasing pH in the effluent from the immobilized algal columns within the range pH 7.2 and 8.9. The potential of immobilized algal technology for wastewater disinfection may warrant further investigation. |
| | |
Authors:
|
H W Pearson; A E Marcon; H N Melo |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: Water science and technology : a journal of the International Association on Water Pollution Research Volume: 63 ISSN: 0273-1223 ISO Abbreviation: Water Sci. Technol. Publication Date: 2011 |
Date Detail:
|
Created Date: 2011-03-25 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 9879497 Medline TA: Water Sci Technol Country: England |
Other Details:
|
Languages: eng Pagination: 1075-80 Citation Subset: IM |
Affiliation:
|
Environmental Sanitation Group, Department of Chemistry, State University of Paraiba, Av das Baraúnas, 351, Bodocongó 58109-753 Campina Grande, PB, Brazil. E-mail: howard_william@uol.com.br. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: CSP patches: an ensemble of optimized spatial filters. An evaluation study.
Next Document: Survival of Mycobacterium tuberculosis and Mycobacterium bovis in human urine.