颗粒活性炭对味精溶液里色素和铁的吸附特性

The adsorption equilibrium of color and lron in neutrlization liquid of glumatic acid onto granular activated carbon

研究了颗粒活性炭吸附味精中和液里色素和铁的吸附平衡特性，测定了在１５℃，３０℃和５０℃等温度下色素和铁的吸附平衡等温线，分别用Ｈｅｎｒｙ方程、Ｌａｎｇｍｕｉｒ方程和Ｆｒｅｕｎｄｌｉｃｈ方程对色素和铁的吸附平衡等温线进行拟合，用最优化方法得到３种方程在各温度下的拟合参数，并对生产中最佳温度的选取进行了讨论．

The thermodynanmics behavior of adsorption of color iron in neutralization liquid of glumatic acid onto granular activated carbon(GAC) were studied. And the equilidrium isotherms in 15℃, 30℃, 50℃ were obtained. The eduilibrium data were regressed by Henry, Langmiur and Freundlich eqation. And optimization method was employed to evaluate the adsorption equation coefficients. The optimum temperature for the decolorizing and or ironremoving was discussed.