Delivering Cost Savings For Wastewater Treatment

By Sulzer

Air is one of the most important elements used in wastewater treatment processes. Activated sludge systems require proper aeration of the wastewater to ensure the biological decomposition of organic compounds. However, while air costs nothing, the systems required to deliver it can account for 50 to 90% of the energy consumption of a plant. Therefore, the decisions made with respect to this equipment can have a significant impact on running costs.

Edward Paro, Portfolio Manager Compressors & Aeration for Sulzer, looks at the choices that need to be considered when reviewing aeration technology.

The combination of energy intensity and process importance means the selection, specification and operation of aeration technologies are key decisions in wastewater system design. The best solution depends upon multiple factors, including the variability of system demand and the geometry of the wastewater treatment vessel.