Process for reducing water consumption during wet processing of

Details Process for reducing water consumption during wet processing of Process for reducing water consumption during wet processing of

1996-12-31

2000-03-14

Fortuna, Ana

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210650, 210660, 210663, 210767, 210805, 8138, 8141, 134 10, B01D 6100

Patent

active

060368640

ABSTRACT:
An economical process for reducing water consumption and, therefore, water discharge during the dyeing of textile goods is disclosed. Processing baths during dyeing, which can be reused directly or after minimal treatment, are segregated from baths which contain a high level of pollutants and color. The reuse baths are combined and stored separately from baths which are to be discharged. The reuse baths are then recycled directly or after minimal treatment to the dyeing process. Baths containing a high level of pollutants and color are either discharged directly to the local public treatment works or are treated in a conventional wastewater treatment plant. The process results in substantial economic benefits because the operating costs of recycling reuse baths are low and because the quantity of wastewater discharged is substantially reduced.

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patent: 5360551 (1994-11-01), Weber

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