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| Titre: | Alfa stems (stipatenacissima L as substrate for water denitrification |
| Auteur(s): | Benrachedi, Abdellah Lokman
Selatnia, A.
Benrachedi, K. |
| Mots-clés: | Alfa stems
Nitrate
Biological treatment
Heterotrophic denitrification
Natural support |
| Date de publication: | 2018 |
| Editeur: | Université M'Hamed Bougara Boumerdes |
| Collection/Numéro: | Algerian Journal of Environmental Science and Technology / Vol. 4 , N° 1(2018);pp. 649-653 |
| Résumé: | Biologicaldenitrification of drinking water was studied in up-flow laboratory reactors packed with alfa stems (stipatenacissima L) which served as the sole carbon source as well as the only physical support for the microorganisms. The highest rates of denitrification were observed in fresh reactors during their first week of operation and the efficiency of the process declined thereafter.The addition of fresh alfa stems brought about a temporary improvement of the denitrification performance and a regime of one weekly addition prevented the deterioration of a reactor which was operated for 5 months. The rate of denitrification was affected by the water velocity and decreased at velocities above 0.054 m.d-1 .Colour and soluble organic carbon associated with fresh alfa stems removed by adsorption on powdered activated carbon |
| URI/URL: | https://www.asjp.cerist.dz/en/article/117954
http://dlibrary.univ-boumerdes.dz:8080/handle/123456789/12523 |
| ISSN: | 2437-1114 |
| Collection(s) : | Publications Nationales
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