The environmental pollution removing of silver using nepheline syenite

Environmental pollution can be divided into three sections: the result of organic compounds (colors, pesticides, etc.) are divided into cations and anion, several methods to remove environmental pollution such as ion exchange, bio-chemical,sedimentation and there areelectro-chemical methods one of the adsorption. The existence of heavy metals such as lead, silver, copper, nickel, cadmium, zinc,manganese, etc, in effluent has been one of the mineralcauses dangerous environmental contaminants. Nepheline syenite is a alkalic plutonic igneous rock that it consists of nepheline and alkali feldspar but it doesn’t have any quartz. Nephelinesyenite is a coarse of medium grained stone and has some appearance with granite, but they aredifferent in terms of composition. Study on the adsorption of metal cations on nepheline syeniteis studied. Laboratory results show that the amount of adsorption of metal cations and equal to the removal process as well as the percentage of adsorption at the time, pH, and different concentrations were studied. The result of adsorption isotherm show to fit Langmuir and freundlich models with correlation coefficient (r2) 0.993 and 0.9407 respectively

کلیدواژه ها:

Ion exchange ، adsorption ، electrochemical ، nepheline syenite