Tanzania to develop wastewater treatment plant

Dar Es Salaam Water Supply and Sanitation Authority (DAWASA) has awarded Metito, a leading provider of intelligent water management solutions, the contract to design, build and operate a new wastewater treatment plant (WWTP) in Dar es Salaam region, Tanzania

Construction is expected to commence in April 2023, with the commissioning date set for October 2024. (Image source: Metito)

Located in the Mbezi Beach area, the 16,000 cu/m per day wastewater treatment plant will have state-of-the-art engineering and technologies to enhance operational and maintenance costs, improve sludge quality, and minimise the overall carbon footprint. Additionally, the plant will be designed in almost half of the allocated area, optimising land usage and maximising savings.

Metito’s scope of work involves three years of operation and maintenance for the wastewater treatment plant with the full participation of DAWASA staff members in all operational sections of the treatment plant. Metito will utilise conventional activated sludge technology and implement anaerobic digestors to produce biogas followed by Combined Heat and Power (CHP) generation system which will reduce electric power consumption by almost 40% at ultimate plant capacity. Metito will also use the sludge anaerobic digestion process in the first treatment phase to ensure the sludge is stabilised and the quality of the sludge is maintained.

The Mbezi Wastewater Treatment project will contribute to Dar Es Salaam region’s sustainable economic and industrial development by creating skilled jobs and safeguarding the health and well-being of the community by providing efficient wastewater treatment.

Karim Madwar, Metito Africa managing director, said, “The project is a true milestone towards modernising Dar es Salaam’s wastewater system and bolstering the resilience of its water infrastructure, all while safeguarding its natural ecosystems. Metito’s founding principles are Impact, Sustainability, and Innovation, and this project ticks all the boxes. We are proud to be working with Dar Es Salaam Water Supply and Sanitation Authority on this project and are looking forward to making this a benchmark to similar projects in the region.”