Lilongwe, the rapidly growing capital of Malawi, faces increasing challenges in wastewater treatment. Until recently, the Kauma municipal wastewater treatment plant relied on a natural lagoon system. However, with the city’s fast-growing population, these ponds reached capacity, and the quality of the effluents no longer met environmental standards, leading to a critical pollution issue.
To address this situation, a decision was made to upgrade the facility by converting the natural lagoons into aerated lagoons. This required the installation of an equipment that is efficient, reliable, and adapted to the local constraints. As a result, 8 high-speed surface aerators AER-AS 1500-24 (15 kW) were installed at the plant.
These aerators were specifically adapted to the project’s needs. An anti-erosion plate was added to protect the clay layer ensuring the lagoon’s watertightness, while an increased tolerance between the SCREWPELLER and the float allows for better handling of solids in the water. Thanks to their stainless-steel construction, these units ensure essential durability in an environment where reliability is key.
The installation was accompanied by comprehensive training for local teams to ensure optimal operation and maintenance.
This project, funded by the World Bank, aims to enhance wastewater management, protect the environment, and support the development of Lilongwe.
We are proud to have contributed to this development project, which represents a great collective success!
Learn more about AER-AS: https://www.sfa-enviro.com/products/aer-as/
