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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Fox, Shalom Oren, Yoram Gilron, Jack Ronen, Zeev |
| Description | Author Affiliation: Fox S ( Zuckerberg Institute for Water Research, Department of Desalination and Water Treatment Research, Albert Katz International School for Desert Studies, The Jacob Blaustein Institutes for Desert Research, Ben Gurion University of the Negev, Sede Boqer Campus, 84990, Israel. Electronic address: foxshal); Oren Y ( Zuckerberg Institute for Water Research, Department of Desalination and Water Treatment Research, Albert Katz International School for Desert Studies, The Jacob Blaustein Institutes for Desert Research, Ben Gurion University of the Negev, Sede Boqer Campus, 84990, Israel.); Ronen Z ( Zuckerberg Institute for Water Research, Department of Environmental Hydrology and Microbiology, Albert Katz International School for Desert Studies, The Jacob Blaustein Institutes for Desert Research, Ben Gurion University of the Negev, Sede Boqer Campus, 84990, Israel.); Gilron J ( Zuckerberg Institute for Water Research, Department of Desalination and Water Treatment Research, Albert Katz International School for Desert Studies, The Jacob Blaustein Institutes for Desert Research, Ben Gurion University of the Negev, Sede Boqer Campus, 84990, Israel.) |
| Abstract | Perchlorate contamination of groundwater is a worldwide concern. The most cost efficient treatment for high concentrations is biological treatment. In order to improve and increase the acceptance of this treatment, there is a need to reduce the contact between micro organisms in the treatment unit and the final effluent. An ion exchange membrane bioreactor (IEMB), in which treated water is separated from the bioreactor, was suggested for this purpose. In this study, the IEMB's performance was studied at a concentration as high as 250mgL(-1) that were never studied before. In the bioreactor, glycerol was used as a low cost and nontoxic carbon and energy source for the reduction of perchlorate to chloride. We found that high perchlorate concentrations in the feed rendered the anion exchange membrane significantly less permeable to perchlorate. However, the presence of bacteria in the bio-compartment significantly increased the flux through the membrane by more than 25% in comparison to pure Donnan dialysis. In addition, the results suggested minimal secondary contamination (<3mgCL(-1)) of the treated water with the optimum feed of carbon substrate. Our results show that IEMB can efficiently treat groundwater contaminated with perchlorate as high as 250mgL(-1). |
| ISSN | 03043894 |
| Volume Number | 264 |
| e-ISSN | 18733336 |
| Journal | Journal of Hazardous Materials |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2014-01-15 |
| Publisher Place | Netherlands |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Bioreactors Perchlorates Isolation & Purification Water Pollutants, Chemical Water Purification Glycerol Ion Exchange Membranes, Artificial Evaluation Studies Journal Article Research Support, Non-u.s. Gov't Discipline Environmental Science Discipline Environmental Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Environmental Chemistry Pollution Waste Management and Disposal Health, Toxicology and Mutagenesis Environmental Engineering |
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