活性炭对柠檬酸及其盐溶液中色素的吸附机理和应用研究

Abstract

Abstract: Contrast tests were performed on relations between activated carbon dosage and its decoloring power to pigments in citric acid and sodium citrate solutions by using powdered activated carbon currently used in citric acid factories and the special activated carbon manufactured by us.The results show that the decoloring power of the special activated carbon is higher than that of the powdered activated carbon.In addition,the pore size-volume distribution curves were determined.It proved that the valid pore volume of the special activated carbon is bigger than that of the currently used powdered activated carbon which is the primary factor of adsorbing organic macromolecular pigment leading to better decoloration effect of the special activated carbon.

Key words: activated carbon, citric acid, sodium citrate, potassium citrate

CLC Number:

TQ424.1

DENG Xian-lun;JIANG Jian-chun;LIU Han-chao;JIANG Zhao-xiong . STUDY ON MECHANISM OF ADSORPTION BY ACTIVATED CARBON ON PIGMENTS IN CITRIC ACID AND CITRATE SOLUTION AND ITS APPLICATION[J]. , 2002, 22(1): 55-58.

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STUDY ON MECHANISM OF ADSORPTION BY ACTIVATED CARBON ON PIGMENTS IN CITRIC ACID AND CITRATE SOLUTION AND ITS APPLICATION

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