Case Study

Sulzer Equipment Increases Wastewater Treatment Capacity And Efficiency


The Kujawy Wastewater Treatment Plant (WWTP) in Kraków, Poland, was built in 1999. The capacity of this mechanical-biological plant ranged from 80’000 m³/d in dry weather up to 223’000 m³/d during rainy periods. The plant was originally built using ABS aerators, agitators, pumps, and mixers.

After twelve years of operation, a modernization of the treatment plant was needed for the removal of nitrogen and phosphorous pollutants, as well as an enlargement by another 100’000 PE (population equivalent). After a thorough quality and efficiency analysis, Sulzer was selected to make the final proposal for the plant modernization.

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Sulzer Pumps Solutions Inc.