DEWATERING OF SLUDGE FORMED DURING THE REAGENT DECOMPOSITION OF WASTE EMULSION FLUIDS

Abstract

The article presents the results of studies on mechanical dewatering of sludge formed during
the decomposition of waste emulsion fluids by a solid-phase reagent based on modified bentonite
clay and flocculants. The sludge on the basis of emulsion fluids, produced in metallurgical and mechanical
engineering enterprises, in the liquid form are discharged into the “dirty” recycling of water
supply in industrial companies. It’s inadmissible, as it leads to their accumulation in the solid state.
This work presents the results of laboratory experiments on dehydration of the sludge by filtering
under gravitational conditions, vacuum and extra pressure, with the use of flocculants of various actions.
The simulation of the manufacturing equipment operation is made in accordance with well
known techniques. The best results are obtained by sludge filtration on the models of a drum vacuum
filter and a chamber filter press. The article presents main technological parameters of industrial
equipment for dehydration, specified according to the results of laboratory experiments and
recommendations for choosing the technology of mechanical dewatering of the considered sediment.
These data can be used when designing facilities for treatment of waste water in metallurgical
and mechanical engineering companies.
Keywords: waste emulsion fluid, modified bentonite clay, flocculants, sludge, dewatering.