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STABILITY INDICES AND EQUILIBRIUM CRITERIA OF CALCIUM- HYDROCARBONATE WATER SYSTEMS »« ANALYSIS OF ABILITY TO APPLICATION OF EFFECTIVE SORBTION MATERIALS FOR LIQUID WASTE TRAETMENT ON THE NUCLEAR PLANTS OF UKRAINE

SORPTION REMOVAL DYES FROM WATER BY NANOCOMPOSITE MAGNETICALLY MINERAL SORBENTS

O. V Makarchuk, T. A Dontsova

National Technical University of Ukraine “Kyiv Polytechnic University”, Kyiv

xtfhn9207@ukr.net, dontsova@ua.fm

The sorption of dyes from aqueous solutions by magnetically sorbent based on saponite and nanomagnetite are considered and shown that it is effective adsorbent for dyes as cationic and anionic nature. The suitability of various kinetic models (pseudo-first and pseudo-second-order) and models of sorption isotherms (Langmuir, Frendlih, Tiomkin and Dubinin-Radushkevych) to describe the adsorption interaction between dyes and adsorbent are analyzed. The rate constants are calculated and found that process of organic dyes adsorption by nanocomposite magnetically sorbent describes the kinetics model of pseudo-second order. Revealed that the process of sorption Malachite green, Congo red, Indigo carmine by magnetically sorbent described Langmuir model.

Keywords: magnetically sorbent, saponite, magnetite, dyes, kinetics, adsorption, magnetic separation.

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07.04.2016 at 9:04 pm