Veuillez utiliser cette adresse pour citer ce document : http://hdl.handle.net/123456789/1229
Titre: ELIMINATION DES NITRATES PAR ADSORPTION SUR CHARBON ACTIF EN POUDRE
Auteur(s): ABD EL KADER OUAKOUAK
LEILA YOUCEF
SAMIA ACHOUR
Mots-clés: Nitrates
adsorption
powdered activated carbon
reaction parameters
Date de publication: 11-jan-2013
Résumé: The aim of this work is to test the effectiveness of powdered activated carbon (PAC) as adsorbent for retention of nitrates, and to study the effect of various reaction parameters on the removal of this compound by the PAC in synthetic solutions of distilled water. The results we obtained indicated that the use of PAC result at a good retention of nitrate after 1 hour 30 minutes of contact. The pH of treatment affects the nitrate removal efficiencies. The maximum removal is obtained at pH 4. Denitrification rates increase with increasing the dose of the adsorbent in the range 0,1 to 4 g/l for an initial content of nitrate equal to 40 mg/l. Langmuir and Freundlich models are perfectly appropriate to the results obtained. In the initial concentration of nitrate ranging from 5 to100 mg / liter of distilled water and a constant dose of adsorbent (1 g/l), the use of the PAC appears to be effective for waters loaded by this pollutant
URI/URL: http://hdl.handle.net/123456789/1229
ISSN: 1112 - 3338
Collection(s) :CS N 17

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