Study on Function of Phosphorus Preserving and Supplying Clinoptilolite

doi:10.3321/j.issn:1000-7091.2001.03.022

Abstract

Abstract: When an exchange reaction takes place between clinoptilolite and solube phosphate solutions,companied with cation exchange between the zeolite and solution,it occurred also for the zeolite to adsorb phosphoric ions.Adsorption of the zeolites to phosphoric ions may be related to a weak bonding action of Al in the zeolitic anionic framework with phosphoric ions,besides that it is related to exchangeable Ca²⁺ of the zeolites.Phosphoric ions adsorbed by the zeolites can be eluted with some solutions.Cation exchange propeties of clinoptilolite and its adsorption and desorption to phosphoric ions have a function of storage for nutritive elements in soil improvement,so that the zeolite has important useful values in agricultural production.

Key words: Clinoptilolite, Phosphoricions, Adsorption, Desorption

CLC Number:

S158.3

HAN Cheng. Study on Function of Phosphorus Preserving and Supplying Clinoptilolite[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2001, 16(3): 114-117. doi: 10.3321/j.issn:1000-7091.2001.03.022.

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