ISSN (print) 1995-2732
ISSN (online) 2412-9003




The modern coal preparation businesses constantly face the problem of concentration and dewatering of sludge. Solution of this problem is largely connected with the correct selection of the most efficient flocculants and flotation reagents which provide a high efficiency of the entire plant in the conditions of tightly closed water slurry circuit. The aim of this paper is to investigate the most efficient flocculants to enhance cleaning of recycled water from coal slurry at the coal preparation plant.

This paper presents experimental data on the study of the flotation of coal slurry using different reagents – gatherers after pre-flocculation using Magnafloc type flocculants.

It has been found that the most efficient agent for sludge water purification is M-10 flocculant, which sig-nificantly improves the quality of recycled water and increase the yield of the underflow.


Coal slurry, sludge water, flocculants, precipitation technology, adsorption.

Petukhov Vasily Nikolaevich – D.Sc. (Eng), Professor, Nosov Magnitogorsk State Technical University, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..

Subbotin Vladislav Vladimirovich – Postgraduate Student, Nosov Magnitogorsk State Technical University, Rus-sia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..

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