MechChem Africa May-June 2025

⎪ Water, wastewater and pumping solutions ⎪

system, which need to be addressed to improve operations. Vogelzang notes: “We have the additional problem of concerns about high organic carbon concentrations in the water affecting taste and odour. We are considering solutions such as UV disinfection combined with chlorination to enhance water quality.” The original water treatment plant was built in the 1920s, so the team has to address the challenges associated with an ageing plant, although some improvements have been made to the plant over time. De Wet underscores the need for envi ronmental assessments and cost estimates for feasibility, as well as the consideration of social impacts, despite time constraints that limit comprehensive studies. “The upgrades will also include optimisation of the poly-electrolyte dosing for effective coagulation, flocculation and sedimentation; the introduction of new sedimentation tanks; increasing the effective filtration capacity required and the potential need for granular-activated carbon filters; as well as adding the essential tertiary process of UV disinfection,” he says. This milestone project involves weigh ing various competing socio-economic and developmental needs, ensuring water supply security, and delivering services to communi

The full scope of the project will be to improve the Umzonyana water supply system for sustainable water management by considering construction of a Bridle Drift Dam intake tower, along with a gravity pipeline and upgrades to the Umzonyana water treatment works.

ties in a manner that is both cost-effective and environmentally sustainable. With GIBB’s commitment to achieving this objective in conjunction with its German coun

terparts, not only will Buffalo’s residents be able to enjoy a better life, but other similar projects could become possible in the future. www.gibb.co.za

May-June 2025 • MechChem Africa ¦ 19