Adsorption of chromium from wasterwater by platanus orientalis leaves
Iranian Journal of Environmental Health Science and Engineering. 2007; 4 (3): 191-196
Dans Anglais
| IMEMR
| ID: emr-123236
ABSTRACT
The Cr [VI] adsorption characteristics of platanus orientalis leaves and their ash were examined as a function of contact time, initial pH and metal ion concentration. Batch adsorption experiments were performed. The effects of Ca[2+], Mg[2+], Na[+] and K[+] on adsorption were studied. The effect of this adsorbent on COD in wastewater showed that 2g/L of adsorbent caused increase of 110 mg/L and 76mg/L COD in deionized water in 120 minutes for platanus orientalis leaves and their ash, respectively. The maximum removal took place in the pH range of 6-7, contact time of 60 minutes and initial concentration of 2mg/L. Studies showed that the Freundlich adsorption model better fitted with the results than Langmuir with R[2]>0.85. The study showed platanus orientalis leaves ash was more favorable than living ones as well as in removing chromium fro the aqueous solution
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Indice:
Méditerranée orientale
Sujet Principal:
Pollution de l'eau
/
Détoxication par sorption
/
Gestion des déchets
/
Feuilles de plante
/
Adsorption
langue:
Anglais
Texte intégral:
Iran. J. Environ. Health Sci. Eng.
Année:
2007
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