Removal of arsenic and COD from industrial wastewaters by electrocoagulation
The paper deals with the treatment of arsenic-containing industrial wastewaters by electrocoagulation. The waste issued from a paper mill industry downstream of the biological treatment by activated sludge was enriched with arsenic salts for the purpose of investigation of the treatment of mixed pol...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
International Association of Physical Chemists (IAPC)
2011-08-01
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| Series: | Journal of Electrochemical Science and Engineering |
| Online Access: | http://pub.iapchem.org/ojs/index.php/JESE/article/view/54 |
| _version_ | 1818144946593464320 |
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| author | S. Zodi O. Potier C. Michon H. Poirot G. Valentin J. P. Leclerc F. Lapicque |
| author_facet | S. Zodi O. Potier C. Michon H. Poirot G. Valentin J. P. Leclerc F. Lapicque |
| author_sort | S. Zodi |
| collection | DOAJ |
| description | The paper deals with the treatment of arsenic-containing industrial wastewaters by electrocoagulation. The waste issued from a paper mill industry downstream of the biological treatment by activated sludge was enriched with arsenic salts for the purpose of investigation of the treatment of mixed pollution. First, the treatment of single polluted waters, i.e. containing either the regular organic charge from the industrial waste or arsenic salts only, was studied. In the case of arsenic-containing waters, a broad selection of experimental data available in the literature was compiled and interpreted using an adsorption model developed previously. The same technique was used in the case of industrial waste. Arsenic-enriched paper mill wastewaters with various amounts of As salts were then treated by electrocoagulation with Fe electrodes. The set of data obtained were interpreted by a model developed on the basis of the separate models. The agreement between predicted and experimental variations of the As concentrations ranging from 0.3 µg/L to 730 µg/L showed that both the organic matter and As salt can be removed from the liquid independently from each other. |
| first_indexed | 2024-12-11T11:55:39Z |
| format | Article |
| id | doaj.art-b2a6eb1e6a024110b182179c8162dca4 |
| institution | Directory Open Access Journal |
| issn | 1847-9286 |
| language | English |
| last_indexed | 2024-12-11T11:55:39Z |
| publishDate | 2011-08-01 |
| publisher | International Association of Physical Chemists (IAPC) |
| record_format | Article |
| series | Journal of Electrochemical Science and Engineering |
| spelling | doaj.art-b2a6eb1e6a024110b182179c8162dca42022-12-22T01:08:14ZengInternational Association of Physical Chemists (IAPC)Journal of Electrochemical Science and Engineering1847-92862011-08-011110.5599/54Removal of arsenic and COD from industrial wastewaters by electrocoagulationS. Zodi0O. Potier1C. Michon2H. Poirot3G. Valentin4J. P. Leclerc5F. Lapicque6Laboratoire Réactions et Génie des Procédés, CNRS – Nancy Université , ENSIC- BP 20451, F-54001 Nancy, FranceLaboratoire Réactions et Génie des Procédés, CNRS – Nancy Université , ENSIC- BP 20451, F-54001 Nancy, FranceLaboratoire Réactions et Génie des Procédés, CNRS – Nancy Université , ENSIC- BP 20451, F-54001 Nancy, FranceLaboratoire Réactions et Génie des Procédés, CNRS – Nancy Université , ENSIC- BP 20451, F-54001 Nancy, FranceLaboratoire Réactions et Génie des Procédés, CNRS – Nancy Université , ENSIC- BP 20451, F-54001 Nancy, FranceLaboratoire Réactions et Génie des Procédés, CNRS – Nancy Université , ENSIC- BP 20451, F-54001 Nancy, FranceLaboratoire Réactions et Génie des Procédés, CNRS – Nancy Université , ENSIC- BP 20451, F-54001 Nancy, FranceThe paper deals with the treatment of arsenic-containing industrial wastewaters by electrocoagulation. The waste issued from a paper mill industry downstream of the biological treatment by activated sludge was enriched with arsenic salts for the purpose of investigation of the treatment of mixed pollution. First, the treatment of single polluted waters, i.e. containing either the regular organic charge from the industrial waste or arsenic salts only, was studied. In the case of arsenic-containing waters, a broad selection of experimental data available in the literature was compiled and interpreted using an adsorption model developed previously. The same technique was used in the case of industrial waste. Arsenic-enriched paper mill wastewaters with various amounts of As salts were then treated by electrocoagulation with Fe electrodes. The set of data obtained were interpreted by a model developed on the basis of the separate models. The agreement between predicted and experimental variations of the As concentrations ranging from 0.3 µg/L to 730 µg/L showed that both the organic matter and As salt can be removed from the liquid independently from each other.http://pub.iapchem.org/ojs/index.php/JESE/article/view/54 |
| spellingShingle | S. Zodi O. Potier C. Michon H. Poirot G. Valentin J. P. Leclerc F. Lapicque Removal of arsenic and COD from industrial wastewaters by electrocoagulation Journal of Electrochemical Science and Engineering |
| title | Removal of arsenic and COD from industrial wastewaters by electrocoagulation |
| title_full | Removal of arsenic and COD from industrial wastewaters by electrocoagulation |
| title_fullStr | Removal of arsenic and COD from industrial wastewaters by electrocoagulation |
| title_full_unstemmed | Removal of arsenic and COD from industrial wastewaters by electrocoagulation |
| title_short | Removal of arsenic and COD from industrial wastewaters by electrocoagulation |
| title_sort | removal of arsenic and cod from industrial wastewaters by electrocoagulation |
| url | http://pub.iapchem.org/ojs/index.php/JESE/article/view/54 |
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