Veolia completes landmark project for Umgeni Water

System Integration & Control Systems Design

Systems - process or technology specific suppliers

October 2018 System Integration & Control Systems Design

Part of the Lower Thukela Bulk Water Supply Scheme (LTBWSS), the plant, constructed at a cost of R1,4 billion and funded by Umgeni Water and the Department of Water and Sanitation, will eventually supply approximately 340 000 people in the iLembe district with potable water. This will be the first time many of these people receive a reliable supply of safe drinking water.

In what is one of the largest municipal potable water treatment plants undertaken by Veolia South Africa, the company was responsible for supplying the required mechanical and electrical components for the treatment plant as well as for the customised abstraction works that will pump water from the river.

“The remote location of the construction site required careful planning and logistical accuracy amongst each of the project stakeholders,” explains Pierre Michallet, senior project manager, Veolia Water Technologies South Africa. Veolia and its EPCM partners, as well as the primary stakeholders of the project – Umgeni Water, engineers and the civil contractors – worked in close collaboration throughout the project to ensure a successful execution and delivery.

Raw water is abstracted from the uThukela River through a boulder and gravels traps system that prevents large matter from being deposited into the water treatment works. The stream is screened as it is split into four canals designed to allow finer sediments and sand particles to settle. The flow is further pumped from the low lift pump station up to the beginning of the water treatment stage, the hydrocyclone. Additional filtering for sediment, grit, organic matter and heavy metals then takes place via gravity using clariflocculators, the Pulsator pulsed sludge blanket clarifier and sand filtration. Underflow sludge accumulated across the treatment processes is dewatered through decanter centrifuges.

As part of the agreement, Veolia was responsible for fostering and developing the relevant professional and technical skills among the region’s communities to be utilised in the operation and maintenance of the water plant. This included a coordinated recruitment plan to identify locally trained engineers, mechanical and electrical fitters, boiler makers, and other vocations required for the plant’s operation.

Veolia worked with Umgeni Water’s operations teams during the handover period in order to provide a seamless delivery of the plant at the end of July 2017. Provision has been made to scale the plant’s potable water production capacity from 55 up to 110 Ml/day, should it be required in the future.

For more information contact Pierre Michallet, Veolia Water Technologies South Africa, +27 72 077 7008, [email protected], www.veoliawatertechnologies.co.za

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System Integration & Control Systems Design

Veolia completes landmark project for Umgeni Water

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