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DISCOLORATION, RECYCLING, ELIMINATION OF TEXTILE EFFLUENTS

Ziel

TO COMPARE DIFFERENT PROCESSES FOR THE TREATMENT OF TEXTILE EFFLUENTS.

THE RESEARCH PROJECT INCLUDES 4 MAIN LINES:

- CHARACTERISATION OF THE EFFLUENTS ACCORDINGLY TO THE TYPE OF MACHINE AND TAKING ADVANTAGE OF THE ALREADY ACQUIRED EXPERIENCE;

- REALISATION OF THE DEVICE WITH THE USE OF GRAFTED CELLULOSES;

- ELABORATION AND TEST OF A PROTOTYPE OF MEAN DIMENSIONS;

- NUMBERING OF THE FUNCTIONING OF THE PROCESS IN TERMS OF RELIABILITY AND REALIZED ECONOMIES.

PROP. 02.510

TWO POSSIBILITIES ARE TESTED:

- SUPERCONCENTRATION BY MEANS OF:

A) ULTRAFILTRATION ON MINERAL MEMBRANES, GIVING A CONCENTRATE WITH A CONTENT OF HIGH DRY MATTERS AND
B) EVAPORATION, BY WHICH THE QUANTITY OF VAPOUR PRODUCED SHOULD BE USED IN THE DYEING PLANT;

- DECOMPOSITION OF ORGANIC MOLECULES INTO CO2, H2O BY CATALYTIC OXIDATION UNDER PRESSURE.

PROP. 02.534

THREE PROCESSES OF DISCOLORATION ARE STUDIED AFTER BIOLOGICAL TREATMENT:

- OZONISATION

- ACTIVE CARBON ADSORPTION

- ION-EXCHANGE GRAFTED CELLULOSE ADSORPTION.

THE COMPARISON OF THE THREE PROCESSES IS MADE FROM THE POINT OF VIEW OF THE YIELD OF DISCOLORATION AND COSTS.

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INSTITUT TEXTILE DE FRANCE
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