Efficient pumping supports wastewater management in Ibiza

12 May, 2025

Sulzer also provided design expertise to the project by calculating the dimensions of the taper sections, which are crucial
for minimizing vibration and cavitation. Equally important was the support Sulzer supplied for the control system, which needed to carefully start and stop pairs of pumps as the inflow to the wet well increased.

Efficient controls

Operating pumps in series requires a higher level of control to ensure downstream assets operate efficiently and only when the preceding pumps are working. This can be achieved using timers, but this increases the risk of dry running of the top pumps, which must be avoided.

Sulzer suggested a control system that uses pressure sensors to control the drywell pumps in conjunction with variable speed drives, which optimize efficiency and ensure output pressure is maintained. The system also coordinated the operation of the pump pairs to ensure inflow into the wet well was managed effectively.

When the pumping station was commissioned, Sulzer provided support to the operator to ensure all the pumps were correctly set up. Since the project was completed, the pumps have been working without fault for more than a year, ensuring all the wastewater is effectively pumped to the wastewater treatment plant, which is also equipped with Sulzer pumps, mixers, diffusers, Scabas and HST compressors, where it is treated, without impacting the local population. Now, the additional pumping capacity will help to keep the White Isle pristine, even during the busiest holiday season.

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