Use of an industrial effluent as a carbon source for denitrification of a high-strength wastewater |
| |
Authors: | N. Bernet F. Habouzit R. Moletta |
| |
Affiliation: | (1) Institut National de la Recherche Agronomique, Laboratoire de Biotechnologie de l’Environnement, Avenue des étangs, 11100 Narbonne, France. Fax: (33) 68 42 51 60 e-mail: bernet@ensam.inra.fr, FR |
| |
Abstract: | Denitrification of a high-strength synthetic wastewater (150 g NO- 3 l-1) was carried out using a wine distillery effluent as an example of an industrial carbon source (22.7 g chemical oxygen demand l-1). Two configurations were tested: one consisted of an acidogenesis reactor followed by a denitrifying reactor and the other was a single reactor directly fed with the raw effluents. In both cases, denitrification was achieved at a nitrate load of 9.54 g NO- 3 l-1 day-1 (2.19 g N as NO- 3 l-1 day-1) with good specific reduction rates: 32.6 mg and 35.2 mg N as NO x g volatile suspended solids h-1, calculated on a single day, for the two-step and the one-step process respectively. Dissimilatory nitrate reduction to ammonium did not occur, even in the one-step process. Received: 26 October 1995/Received revision: 15 February 1996/Accepted: 20 February 1996 |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|