Industrial wastewater from liquid detergent production

Multinational company with more than 250 production sites worldwide

THE CLIENT
The Client is a multinational company with more than 250 production sites worldwide. The factory is the only location in Italy of this corporation for the production of cosmetics for personal care (cream or liquid). 80% of the production is for foreign markets.
Production lines work 24 hours a day, 6 days per week.

THE CHALLENGE
The Client’s environmental targets, concerning water use and raw material use reduction, were the main drive to find a solution to reduce water consumption and sludge from the biologic plant.

 

Parameters (UM)InletDistillateConcentr.
COD (ppm)>50000<3000>200000
Conduct. (uScm)2900<100
Surfactant (ppm)>30000<10
Silica (ppm)70<5>1000

 

THE SOLUTION
Evaporation technology: RV F 30
Construction material: UNS S32750
Overall dimensions: 14 sqm

Evaporation technology: AC R 12
Construction material: UNS S32750
Overall dimensions: 14.5 sqm

ANALYSIS OF MAIN PARAMETERS

PROCESS DIAGRAM

RESULTS

- Water reuse: ∼90%
- Concentration factor: ∼10 times
- Reduction of sludge from biological plant
- disposal costs reduction
Heat pump and forced circulation evaporators