2013•Journal of Shanghai Second Polytechnic UniversityRequires access

Characteristic Ammonia-Nitrogen Adsorption on Natural Clinoptilolite Zeolite

Naici Bing

Abstract

The ammonin-nitrogen adsorption on natural clinoptilolite zeolite was investigated,and the adsorption properties at different condition were compared.The adsorption isothermal curve was analyzed according to the Langmuir and Freundlich models.The result showed that the ammonia-nitrogen adsorption on natural clinoptilolite is more suitable to the Langmuir model.The results at different pH value and different temperature indicated that they also have significant influence on the adsorption amount of the zeolite,when the pH value is between 4~8,the adsorption capacity is higher than 2 mg.g-1.

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Key concepts: Clinoptilolite, Zeolite, Adsorption, Langmuir, Freundlich equation, Isothermal process, Nitrogen, Chemistry