Authors : Sobhy M. Yakout and Ashraf A. Mostafa
Abstract: Nitritetoxicity has been shown to be approximately 10 fold higher than that of nitrate. Activated carbon from Rice straw has been used for nitrite removal. Data show that increasing nitrite concentration increases the adsorption capacity and decrease the adsorption efficiency. At low anion concentrations, there is larger fraction of higher energy sites becoming unoccupied. At high anion concentration dose the surface gets saturated faster as all types of sites are totally exposed for adsorption. Langmuir-Freundlich Adsorption Isotherm Model gave good fitting to the experimental due to it has three fitting parameters which not restricted to monolayer of molecules. This suggests that straw based activated carbon is efficient nitrite adsorbents and that they possess good potential for nitrite removal in waste water treatment.
Sobhy M. Yakout and Ashraf A. Mostafa, 2014. Nitriteequilibrium Studies onto Activated Carbon as Hazardous Anion in Animal System. Journal of Animal and Veterinary Advances, 13: 797-800.