INDUSTRIAL WASTES TREATMENT: evaporaTION, deacidificaTION, concentraTION, neutraliSATION, distillaTION, deamminaTION, stripping, squeezing OF ACQUEOUS MIXTURES AND SOLVENTS

wastes treatment in the chemical and sYnthetic leathers industries

In the chemical industry and in the synthetic leather production a different number of liquid wastes are originated, depending from the production processes. These wastes are containing acids, salts, alkali, liquid drain from impregnation, water emulsions, special liquid mixtures and mixtures entraining solid particles, with often also a thermal pollution.

The plants manufactured by OMNIATEX are:

Vacuum concentrators	Squeezing plants
Distilling and evaporating plants	Neutralization reactors
Heat pump evaporators	Gravity settlers

Three effects evaporation plant	Salts reactor	High boiling stripping	Bottom squeezing	Resins solvent treatment

Resins reactor	Solvent filtering and distilling	Neutralizing reactor	High boiling stripping	Primers reactor

LIQUID WASTES TREATMENT IN THE SIDERURGICAL AnD MECHANICAL INDUSTRIES

Several liquid wastes are originated in the siderurgica and mechanical industry, wastes containing surface active agents, alkali, oils, mixtures, emulsions, special cutting oils, entrained and suspended metal. The first components to be recovered are water, oils, metals and chemical products like solvent, with much attention to the energy consumption and the volume reduction of the wastes, to minimize the residual amount that has to be conferred for disposal.

Within this scope, the plants manufactured by OMNIATEX are:

Vacuum concentrators	Membranes separation
Distilling and evaporating plants	Gravity settler
Heat pump evaporators	Cellulose roll separators
Micro filtration plants	Ultra filtration

Micro filtration plant	Waste treatment from die casting of light alloys	Evaporation and recovery of oil from cutting emulsion

treatment plants for wates from the painting industy

The wastes produced by the paint industry are liquid and solid wastes containing a large number of polluting elements like phosphates, metals, acid solution, alkali solution, surface active agents, oils, solvents and other organic and inorganic elements.

In this range, the plants manufactured by OMNIATEX are:

v Chemical and physical treatment process for the discharge in sewer or river waters, following the local Law.

v Multiple separation, centrifuge separation, filtration and ultra filtration for the recovery of degreasing baths and mud elimination from

phosphating baths.

v Reduction plants for minimizing the waste quantity, with vacuum evaporation, different filtration and crystallization.

Chemical Physical plant	Baths crystallization plant	Degreasing baths ultra filtration	Cataphoresis evaporation and crystallization plant

The different plants produced in this field are:

Distilling, concentrating and vacuum evaporating plants	Gravity settlers
Osmotic separation	Centrifuge separation
Membrane separation	Ultra filtration
Chemical and physical treatment plants

Wastes treatment in the galvanic industry

The wastes produced by the galvanic industry are liquids containing several pollutants like phosphates, metals, acid solution, alkali solution, surface active agents, and cyanides.

The scope of the manufactured plants is the recovery of the polluting elements and the range is:

v Plants with chemical and physical treatment for the discharging in the sewage system or in the river of the water, respecting the local Law.

v Reduction plants for minimizing the waste quantity, with vacuum evaporation, different filtration and crystallization.

Evaporation plant for copper solution	Water recycling with metals separation	Water recycling for zinc plating washing	Metal degreasing bath ultra filtration

Waste chemical and physical treatment plant	Atex two effects vacuum evaporation plant	Vacuum evaporation	Vacuum concentrator

Chromic acid recovery	Water recovery from rolling mill