[     Markets listing ](/en/references "  Markets listing")



 

 

 

**THE CLIENT**

The Client is a multinational company operating in various areas: components, lift technology, industrial solutions, material services, steel. The Central American site manufactures stainless steel.

**THE CLIENT'S REQUEST**

The Client aims to achieve Zero Liquid Discharge (ZLD) by recycling the distillate in the process, alongside the reverse osmosis permeate that escapes from the pre-treatment of waste water produced by the stainless steel pickling process.  
A further challenge is the variability of waste concentrations to be treated.

**THE SOLUTION**

Evaporation technology: 4x RV F 60  
Construction material: UNS S32750  
Overall dimensions: 4x 18 sqm

Evaporation technology: 6x AC R 6  
Construction material: UNS S32750  
Overall dimensions: 6x 11 sqm



 

 

 



**ANALYSIS OF MAIN PARAMETERS**



 

 

 

 

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**PROCESS DIAGRAM**



 

 

 

 

   ![](/sites/g/files/dvc4561/files/styles/media/public/image/2023/05/Caso%2048__Schema%20di%20processo_EN.png.webp?itok=772YNA7k)   





 

 



 

 

 





RESULTS  
   
 - Water recovery: ~85%  
 - Concentration factor: ~7 times  
 - Recycled distillate in the production process  
 - Reduction of salty solid sludge disposal costs  
 - Zero Liquid Discharge (ZLD)  
 - Return on investment: 2 years  
   
 

 





 

 

 

 





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 [    ![](/sites/g/files/dvc4561/files/styles/content_push_teaser/public/image/2025/02/RV%20F%2060_noSq.jpg.webp?itok=0kOd0o-H)   



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 [RV F evaporators for industrial waste water treatment](/en/evaporators/rv-mvr/rv-f-series "RV F evaporators for industrial waste water treatment") 

 Evaporators with mechanical vapour recompression and forced circulation 

 

 

    

 

 

 

 

 

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 [AC R - AC S evaporators for industrial waste water treatment](/en/evaporators/ac-hot-cold-water/ac-r-series "AC R - AC S evaporators for industrial waste water treatment") 

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 [Surface treatment](/en/applications/wastewater-treatment-surface-treatment-processes "Surface treatment") 

 Wastewater treatment in surface treatment processes  
 

 

 

    

 

 

 

 

 

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