City of Cape Town innovates through technology with help from SSI

May 2012 News

The recently completed Fisantekraal waste water treatment works in Durbanville features use of today’s most innovative and up-to-date electrical, control and instrumentation technology. The plant is an advanced biological reactor and works with automated inlet screening and degritters, surface aerated biological reactors, secondary settling tanks, sludge dewatering system and final effluent disinfection system using ultra-violet.

In addition to being responsible for the plants civil and hydraulic design and contract supervision – in joint venture with PD Naidoo – SSI was responsible for the electrical, drives, control and instrumentation design of the works, having designed, selected and specified the latest technology available from the City’s preferred suppliers. The control system and associated electrical/electronic equipment consists of the following: medium voltage switchgear; low voltage switchgear; programmable logic controllers and instrumentation.

The complete works is operated from a single central scada system of client-server architecture that can later be upgraded to a hot-standby arrangement for redundancy as well as multi-client operator workstations for greater operability as the plant is extended. The system includes an advanced web-based reporting package and will be accessible from the municipality’s offices via the City’s planned region-wide fibre-optic network.

For more information contact Hilary Erasmus, SSI, +27 (0)11 798 6000, www.ssi-dhv.com

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