Coagularea suspensiilor minerale în câmp electric

Adrian Corui, Ilie Vlaicu, Adina Păcală and Romulus Iosif Sârbu
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Adrian Corui: AQUATIM S.A.
Ilie Vlaicu: AQUATIM S.A.
Adina Păcală: AQUATIM S.A.
Romulus Iosif Sârbu: Universitatea din Petroşani

Romaqua, 2011, vol. 73, issue 1, 32-37

Abstract: The water resulted from mining industry and coal processing is characterized by a high concentration in argillaceous colloidal suspensions, which do not precipitate free not even in weeks. Because the dispersion grade is high, these particles have a big specific surface, this explaining the high value of surface energy and their high capacity for absorption ions from water. The most efficient process is electrical discharge of the particles. Some research show that between electrodes happen similar phenomena to those from water electrolyze, liberating H+ ions, which are absorbed at the hydrated part of the micelle, changing its sign, or liberating Al3+ ions from consumables electrodes, who in their way to cathode meeting some minerals particles negative charged, they partially neutralize this particles and produced their coagulation by decreasing the electro- kinetic potential Zeta. In this context, this paper aims to present aspects of replacement coagulation with chemical reagents, in the water rinsing process, through coagulation in electric field.

Keywords: coagulation; electric field; electrolysis; coal processing (search for similar items in EconPapers)
Date: 2011
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