•A general improvement of the Industrial Liquid Wastes plant from the concentrator of the copper mine was made.
•Two existing circular DAF that were out of service were put into operation.
•The osmosis plant was modified so that it could work with the 3 stages of the original design.
•A pretreatment model was done on an empiric form, the chemical cleaning processes were defined both for the osmosis and for the system ultrafiltration.
•Finally, all the system was automated using the existent PLC.