[article]
| Titre : |
Evaluation of sludge behavior in upflow anaerobic sludge blanket reactor for tannery wastewater treatment |
| Type de document : |
texte imprimé |
| Auteurs : |
R. Suthanthararajan, Auteur ; E. Ravindranath, Auteur ; T. Ramesh, Auteur ; K. Chitra, Auteur ; B. Umamaheswari, Auteur ; S. Rajamani, Auteur |
| Année de publication : |
2006 |
| Article en page(s) : |
p. 18-22 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Index. décimale : |
675.2 Préparation du cuir naturel. Tannage |
| Résumé : |
Tannery wastewater containing high concentrations of organic and inorganic pollutants and suspended and dissolved solids was treated by anaerobic digestion in a 12.5 m3 capacity pilot scale Upflow Anaerobic Sludge Blanket (UASB) reactor. Tannery wastewater used for treatment was not diluted with domestic wastewater. The performance of the UASB system in terms of Chemical Oxygen Demand (COD) and sulfate removal, gas production, methanogenic activity and the amount of solids present in the reactor was studied at different organic loading rates. The average COD removal efficiency of about 65 % was achieved and the sulfate removal was consistently above 80 %. The organic loading rate was varied between 0.2 kg/m3/d to about 7 kg/m3/d. The average gas production in the reactor was 0.3 m3/kg of COD removed. Specific methane production and methanogenic activity in the reactor increased with the increase in organic load. Sludge profile was estimated by collecting sludge samples from different heights along the reactor. The Volatile Suspended Solids (VSS) concentration in the reactor was about 200 kgs. The average VSS concentration varied between 30-60 % of the Suspended Solids (SS) concentration. Applying a modified Monad equation, the kinetic coefficients of the anaerobic digestion were determined. The calculated amount of non-biodegradable material was about 500 mg/L, which is in agreement with the experimental value. The values for yield and decay coefficients were found to be 0.16 and 0.01, respectively. |
| En ligne : |
https://drive.google.com/file/d/1MDxn8_-30OjgQF2QcYRBJ7GYk7i_yuI4/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=4045 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CI, N° 1 (01/2006) . - p. 18-22
[article]
|
Aller sur edunet
Accueil
Evaluation of sludge behavior in upflow anaerobic sludge blanket reactor for tannery wastewater treatment in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CI, N° 1 (01/2006)
