[article]
Titre : |
Immobilized micro-organism in mesoporous activated carbon for treatment of tannery waste water |
Type de document : |
texte imprimé |
Année de publication : |
2012 |
Article en page(s) : |
p. 472-480 |
Note générale : |
Bibliogr. |
Langues : |
Anglais (eng) |
Catégories : |
Charbon actif Eaux usées -- Recyclage Matériaux mésoporeux Recyclage (déchets, etc.) Tannage
|
Index. décimale : |
668.1 Agents tensioactifs : savons, détergents |
Résumé : |
Chemo-Autotrophic Activated Carbon Oxidation (CAACO) system was used for the treatment of tannery waste water. It employs activated carbon-immobilised sulphate reducing bacteria for the removal of dissolved organics in wastewater under oxidizing environment. The wastewater characteristics such as COD (1689 mg/L), BOD (377 mg/L), sulphate (915 mg/L) and sulphide (184 mg/L) were applied at an hydraulic loading rate of 0.7376 m3/m3/day and surface loading rate of 0.2438 m3/m2/day to CAACO reactor at 30°C and at atmospheric pressure. The removal of COD, BOD, sulphide and sulphate was 87%, 96%, 100% and 40% respectively after 2 hours of oxidation. The oxidation of dissolved organics in wastewater was accomplished by passing air at flow rate 3 L/min and at pressure 0.5 kg/cm2 through CAACO reactor. The effect of variables COD loading, O2/COD, O2/(COD-BODL), COD/S2–, (COD-BODL)/S2– and [(COD-BODL)i–(COD-BODL)e]/S2– on rate and percentage removal of COD from tannery wastewater was determined. |
Note de contenu : |
- MATERIALS AND METHODS : Source of raw wastewater - Primary clarification - Anaerobic digester and sand filtration - Upflow anaerobic filter (UAF) - Sand filter - Chemo autotrophic activated carbon oxidation (CAACO) reactor - Isolation and identification of bacterial species - Immobilisation of the isolated species
- RESULTS AND DISCUSSION : Characteristics of wastewater - Upflow anaerobic reactor - Chemo autotrophic activated carbon oxidation (CAACO) reactor |
DOI : |
10.3139/113.110219 |
Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16534 |
in TENSIDE, SURFACTANTS, DETERGENTS > Vol. 49, N° 6 (11-12/2012) . - p. 472-480
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