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Degreasing is a necessary step before any other processing in mechanical industry, in the steel industry and generally speaking in the transformation of raw materials.
Degreasing is performed with aid of an aqueous solution containing detergents.
The detergents emulsify oil present on the material to be treated; for this reason, oil concentration tends to increase in degreasing baths until need for renewal and/or replacement, to avoid loss of efficacy.
Using ceramic membrane technology, there has two fluids , one is permeate which is constituted by water and detergents present in the original bath, the other is concentrate which contains oils and suspended solids and that is back to oil removal tank .