The region of El-Ghrous is located in the territories of wilaya of Biskra. It is characterized by a very important agricultural development particularly during the last decades. The objective of this study is to give an idea of presence of nitrates in the groundwater of this region and to observe the capacity of adsorption of a granular activated carbon (GAC) in the denitrification of contaminated waters in this region. The adsorption tests showed that nitrates desorption was observed beyond the equilibrium time. This equilibrium time varies according to the tested water from 2 hours and 30 minutes to 3 hours. The optimal yields are obtained at pH 4. The variation of adsorbent dose in the range 0,1 to 4 g/L, resulted in improved denitrification yields. The models of Langmuir and Freundlich are perfectly applicable for the results obtained.Nitrates in groundwater of El-Ghrous region (Biskra) and treatment possibilities


: nitrates, eaux souterraines, adsorption, charbon actif en grains.

Full Text:

PDF (Français)


BAALI F., ROUABHIA A., KHERICI N., DJABRI L., BOUCHAOUL., HANI A. (2007). Qualité des eaux souterraines et risque de pollution en milieu semi-aride. Cas de la cuvette de Chéria (NE Algérien). Journal d’Estudios Geolégicos 63: 127-133.

BHATNAGAR A., JI M., CHOI Y.H., JUNG W., LEE S.H., KIM S.J., LEE G.,SUK H., KIMH S.J., MIN B., KIM S.H., JEON B.H., KANG J.W.( 2008). Removal of Nitrate from Water by Adsorption onto Zinc Chloride Treated Activated Carbon. Separation Science and Technology 43 : 886-907.

BLIFFERT C., PERRAUD R. (1997). Chimie de l’environnement : Techniques de l’ingénieur. Paris. 3940 pp.

CHO D.W., CHON C.M., KIM Y., JEON B.H., SCHWARTZ F.W., E.S. LEE E.S., SONG H. (2011). Adsorption of nitrate and Cr (VI) by cationic polymer-modified granular activated carbon. Chemical Engineering Journal 175: 298-305.

DEMIRAL H., GUNDUZOGLU G. (2010). Removal of nitrate from aqueous solution by activated carbon prepared from sugar beet bagasse. Bioresource Technology 101: 1675-1680.

DROUICHE A., REZEG A., BOUGHERIRA N, HAMZAOUI W., DJABRI L. (2011). Mise en évidence d’une pollution des eaux par les nitrates au niveau de la nappe du Mio-pliocène d’El-Ghrous (Biskra). 1er séminaire international d’étude sur l’agriculture biologique et développement durable. Oran, Algérie, 13-14 Février.

DROUICHE A., CHAIB W, REZEG A, BOUGHERIRA N, HAMZAOUI W., DJABRI L. (2013). Risque de contamination des eaux souterraines par les nitrates en régions arides ; cas d’El-Ghrous (Région Des Ziban-Sud-Est Algérien). Journal Algérien des Régions Arides, N° Spécial 2013, CRSTRA, 65-75.

HAZZAB A. (2011). Eaux minérales naturelles et eaux de sources en Algérie. Comptes Rendus Geoscience 343: 20-31.

LEVINE S.N., SCHINDLER D.W. (1989). Phosphorus, nitrogen, and carbon dynamics of Experimental Lake 303 during recovery from eutrophication. Canadian Journal of Fisheries and Aquatic Sciences 46 : 2-10.

MASEL R.I. (1996). Principles of Adsorption and Reaction on Solid Surfaces, New York: Wiley Interscience, 818.

MOŞNEAG S.C., POPESCU V., A. DINESCU A., BORODI G. (2013). Utilization of granular activated carbon adsorber for nitrates removal from groundwater of the Cluj region. Journal of Environmental Science and Health 48 : 918-924.

REJSEK F. (2002). Analyse des eaux. Aspects réglementaires et techniques, Collection biologie technique, Série Sciences et techniques de l’environnement. Centre régional de documentation pédagogique d’Aquitaine. Canopé-CRDP de Bordeaux, France 99-100 pp.

RODIER J. (2009). L'analyse de l’eau : eaux naturelles, eaux résiduaires, eau de mer. 9ème édition. Dunod, Paris, France 1526 pp.

YOUCEF L., A. OUAKOUAK A., ACHOUR S. (2013). Dénitrification des eaux par adsorption sur charbon actif. 4th International Congress Water, Waste & Environment (EDE4). Agadir, Maroco, 18-20 December.


  • There are currently no refbacks.

Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 License.