Page 32 - Zero is Possible - Volume 3
P. 32

Żwirownia Ostrowite
                         Water
           POLAND  Cement  French drained stockpiles





                         Opportunity
                                                 •  Resources: Built in-
                         High water usage in
                                                  equipment
                         aggregate processing
                         demanded a more          house using existing
                         efficient solution.     Cost: 470 CHF
                         Reducing freshwater
                         intake and recovering   Results
                         process water became a   •  Water savings:
                         key priority.            795 m³/year recovered
                                                  annually
                         Solution                •  Reduced freshwater
                         A closed-loop drainage   extraction from wells
       Maciej Sypek      system was installed for   •  Payback period: 2 years
          CEO            wet aggregate stockpiles.  •  Improved environmental
                         •  Design: Perforated    performance with
                           pipe in a gravel-filled   minimal cost
                           drainage channel filters
                           water naturally from the
                           stockpiles
                         •  Flow: Recovered water
                           is directed to a settling
                           tank for reuse
    Agnieszka Oksanowicz
       Head of HSE
      & Sustainability







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