Improving TCO of Blowers in Wastewater Industry

Energy accounts for up to 30% of operational costs in wastewater treatment plants. Air management systems—especially blowers and pumps—are central to this energy use. Yet many operators still prioritize upfront cost over long-term value. This white paper from Gardner Denver and Robuschi reframes the conversation around total cost of ownership (TCO), showing how smarter pump investments reduce energy consumption, maintenance, and downtime.

The guide outlines how centrifugal pump technology, particularly horizontal configurations, can outperform traditional submersible systems in both reliability and cost-efficiency. It also highlights design features that extend equipment life, such as wide inlet nozzles, spiral ring casing, and oil-lubricated bearings.

• Energy Efficiency: Centrifugal pumps help reduce energy costs by optimizing sludge transfer and minimizing wear.
• Design Advantages: Robuschi pumps feature impeller blade configurations for solids, wide inlet nozzles, and spiral casing to reduce liquid speed and component erosion.
• Maintenance Savings: Horizontal centrifugal pumps require less servicing than submersible alternatives.
• Genuine Parts Matter: Using non-original parts can void warranties and increase failure risk. Genuine components maintain performance and reliability.
• Circular Economy Alignment: Technologies like thermal hydrolysis and membrane-based water reuse support sustainability and cost recovery.