Hershey State of the Art Waste Water Treatment Plant
Argument by Executive Mayor Gesie van Deventer
4 March 2020
The Stellenbosch WWTW is the single biggest capital expenditure item and majority infrastructure projection in the history of Stellenbosch and will serve our communities for generations to come.
Executive Mayor Gesie van Deventer today unveiled the brand new Stellenbosch WWTW. "The opening of this facility is truly a highlight in my term as Mayor. The thing of the WWTW was one of the first issues that constitute its way to my desk when I took part in 2016. What I establish was very distressing and bordered on an economic and environmental disaster. It is for this reason that the WWTW project was prioritised and expedited, said Mayor van Deventer.
Prior to the upgrade, the WWTW was severely constrained, dilapidated, struggling to meet effluent compliance and a nuisance to the surrounding community and environment. The principal bug were odours and pollution of the downstream water resource which also impacted the agronomical and tourism sectors. The rapid urban expansion of Stellenbosch also placed pressure on the old WWTW, hampering developments and economic growth within the urban edge of the boondocks.
The new facility has greatly improved our wastewater treatment capacity and the incorporation of innovative engineering science will make whatsoever future upgrades easy and cost effective. This facility makes utilize of a membrane biological reactor (MBR) process – an advanced wastewater handling process that uses ultrafiltration membranes for liquid solid separation instead of conventional clarifiers. The utilise of MBR technology is benign in terms of the small footprint of the bioreactor and the production of a high-quality effluent which presents opportunities for the re-use of treated effluent in future. The incorporation of membrane technology has significantly improved the country of the downstream river and the quality of water available for users.
The municipality worked with engineers to replace conventional chlorine disinfection methods with more than environmentally friendly UV disinfection technology. This applied science is likewise more than constructive as it kills a wider spectrum of harmful microorganisms. The facility has as well been designed to be free energy efficient past tailoring the technologies used and minimising pumping through the works. This reduces energy costs.
Initial construction of the WWTW started in 2015 and the total budget for the projection was R 394 1000000 (excluding VAT). The project was funded by Stellenbosch Municipality and co-funded past the Department of H2o and Sanitation through the Regional Bulk Infrastructure Grant.
Phase one of the projection was operational in December 2017 and the facility was fully operational in early February 2020. The total upkeep for the projection was R 394 million (excluding VAT). The project was funded by Stellenbosch Municipality and co-funded by the Section of Water and Sanitation (DWS) through the Regional Bulk Infrastructure Grant (RBIG).
Quick facts:
• This is the largest ultrafiltration membrane biological reactor WWTW in South Africa
• The plant is capable of treatment up to 35 Mℓ per solar day (average dry weather condition flow)
• The facility is fully compliant with the National Water Deed
• The facility is fully automated, allowing it to exist monitored, recorded and controlled via a centralised Supervisory Control and Data Conquering (SCADA) system.
• High odour generation areas on the plant were equipped with an advanced odor treatment system, thus mitigating any odour nuisances from the found.
"Today nosotros tin proudly say that nosotros have one of the most sophisticated waste h2o handling facilities in the country, making use of country of the art technology. This is something that nosotros tin all be incredibly proud of," said Mayor van Deventer.
The Municipality has already begun with upgrades at several other waste water treatment facilities across our municipal surface area, to ensure that all our facilities are able to meet the growing demands of our communities and are able to deliver the highest quality services.
Last modified: December 14, 2020
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Source: https://stellenbosch.gov.za/2020/03/04/stellenbosch-launches-state-of-the-art-waste-water-treatment-works/
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