EFFECT OF AMINO ACID ON THE ISOTHERM OF THE INTERACTION BETWEEN CD(Ⅱ) AND SUSPENDED PARTICLES IN THE YELLOW RIVER
LI Gaizhi
GUO Bosha
JIAO Xiaobao
HONG Xia
WU Di
Abstract：The isotherms of the iateraction between the suspended particles with Cd2+, and the effects of arginine and tyrosine on the isotherms in the Yellow River were studied. The isotherm is formed by two carves joined together with a "flat portion" in the middle, it belongs to second order exchange reaction. The adsorption equilihrlum constants K1 and K2 were calculated by using the isothermal equation of surface stepwise ion exchange. Amino acid in small amount promotes exchange adsorption of the suspended particles with Cd2+. The degree of promotive action relates to the isoclectric point of amino acid. The promotion of arginine is bigger than tyrosine.
Keywords：exchange adsorptionsuspended particlecadmiumamino acidthe Yellow River
Publication Date：2000-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：5( 8-12 )