Howden Supplies Energy Efficient Aeration Solution

Howden has been awarded a contract to supply four high speed single stage integrally geared blowers and a control system for the new Athlone Wastewater Treatment Works (WWTW) located in Cape Town, South Africa.

The City is growing rapidly due to population growth and migrations which triggered the need to the WWTW to upgrade to ensure it can meet increasing demand to clean the water and make it safe before discharging it into the environment.

Howden’s high efficiency SG Blowers and proprietary Bio-Active Response System (BARS), scheduled for installation in 2024, will support the WWTW by efficiently delivering the correct amount of dissolved oxygen reducing the electrical demand and generating energy savings. Howden’s Combined Vane Control systems, which integrates the Inlet Guide Vane and Variable Vane Diffuser, will work in conjunction with a Howden algorithm to deliver the most efficient air required over a large turndown range (100-45%).

“Howden has supported the City of Cape Town over the past ten years. We have worked together to optimise their Fine Bubble Diffuser Aeration systems which consume around 30-50% of the energy requirements for a Waste Water Treatment Plant.” said Eric Vemer, President and General Manager of Africa & Middle East at Howden.

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