[article]
| Titre : |
Anaerobic treatment of tannery wastewater with sulfide removal and recovery of sulfur from wastewater and biogas |
| Type de document : |
texte imprimé |
| Auteurs : |
R. Suthanthararajan, Auteur ; T. Ramesh, Auteur ; S. Rajamani, Auteur ; B. Umamaheswari, Auteur ; E. Ravindranath, Auteur ; K. Chitra, Auteur |
| Année de publication : |
2004 |
| Article en page(s) : |
p. 67-72 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
Tannery wastewater contains high concentrations of sulfur compounds. Feasibility studies of pilot plant Sulfur Recovery Unit (SRU) integrated with Upflow Anaerobic Sludge Blanket (UASB) reactor, which is first of its kindin India, were carried out to study the sulfide removal efficiency for tannery wastewater. SRU consists of a stripper column, absorber column, regeneration unit and sulfur separator. Stripper efficiency of about 80-95 percentage in terms of sulfide removal was achieved for a sulfide load of 1-4 kg/d at a influent pH between 7.5-8.5. At sulfide load of 10 kg/d sulfide removal efficiency of about 65 percent was observed in the stripper unit. The absorber efficiency was more than 99.8 percent throughout the study period. The presence of SRU improved the COD removal efficiency in the UASB reactor. Elemental sulfur was obtained as a useful byproduct. Sulfate present in the wastewater is converted to sulfide in the UASB reactor. The sulfide in the dissolved form is stripped, absorbed and converted to elemental sulfur in the SRU. By this process, total dissolved solids (TDS) due to sulfate 'in the wastewater is also reduced. Biogas generated can be used as a fuel after scrubbing the hydrogen sulfide from it in the sulfur recovery system. |
| En ligne : |
https://drive.google.com/file/d/1joezX_rhT0mjJzNbvvCRtb4uG4RWmoxu/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=4181 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. XCIX, N° 2 (02/2004) . - p. 67-72
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Anaerobic treatment of tannery wastewater with sulfide removal and recovery of sulfur from wastewater and biogas in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCIX, N° 2 (02/2004)
