Mar 30, 2012
Lack of capacity leads to wastewater treatment plant upgradesBack
Cape Town|Construction|Engineering|Johannesburg|Tshwane|Africa|Design|PROJECT|Project Management|Projects|Safety|SSI|System|Systems|Water|Africa|South Africa|Nereda Plant|Adequate Services|Equipment|Service|Services|Systems|Apies River|Western Cape|Alfred Schröder|Infrastructure|Japie Van Eeden|Water|Wastewater Treatment
© Reuse this
The firm points out that the country’s WWTW infrastructure is heavily undercapacitated, leading, in some cases, to sewage being discharged into sensitive bodies of water, such as streams.
SSI notes that the City of Johannesburg is one of only a few municipalities with full Green Drop certification, as outlined by the Department of Water Affairs, while many municipalities in the rest of Gauteng and other provinces are struggling to meet these standards.
Green Drop certification is an indication of the state of sewage and effluent treatment in South Africa, says SSI Western Cape water sector area manager Japie van Eeden.
“The practical skills shortage among new municipal engineers has influenced this problem. Many of the new graduates have qualifications but lack practical skills to fully perform their duties,” he adds.
Further, local government is faced with having to balance new infrastructure development and maintain service delivery, which is challenging as a result of the lack of skills.
SSI plans on improving this situation by looking at the infrastructure and service delivery task as a complete cycle from planning to the provision of adequate services to enable sustainable development.
By focusing on the income that the development will raise, in relation to the development cost, the company will develop a sustainable plan to manage infrastructure development.
The undercapacitated WWTW serves the central and northern areas of Tshwane.
SSI is undertaking the preliminary design of the project, which includes two 40 Mℓ/d plant extensions at the north works and a 60 Mℓ/d plant extension at the east works.
The deficient plant is negatively impacting on the Apies river, as well as on the downsteam Themba water treatment plant, which also supplies the City of Tshwane with water.
SSI will also be involved in the project management, civil works and mechanical workings of the project.
The company points out that fast-tracking the project, while managing the client’s expectations as well as managing risk, might prove challenging.
In addition, the systems improve operational efficiency, safety of equipment and personnel and offer long-term data logging and trending at otherwise unattended installations, says SSI Western Cape automation sector consultant Alfred Schröder.
The City of Cape Town’s new Fisantekraal WWTW is an automated plant, along with the Nereda plant at Gansbaai, which has been operating virtually trouble free for more than two years since commissioning.
A second Nereda automated plant is currently under construction at Wemmershoek, in Stellenbosh.
The Nereda plant is controlled using a conventional supervisory control and data acquisition system, a programmable logic controller, and an SSI/DHV Aquasuite Nereda Controller.
Schröder, however, warns against falling prey to illusory simplicity when automating a system, and advises that the upgrade be done in a multidisciplinary, planned and professional manner.
The company’s knowledge in indirect effluent reuse and desalination projects is being used by the Overstrand municipality’s Hermanus WWTW, where designs have been completed for a future upgrade project.
Edited by: Chanel de Bruyn© Reuse this Comment Guidelines (150 word limit)
Other Water News
The Competition Commission would refer a case against Isipani Construction to the Competition Tribunal for its alleged involvement in collusive tendering for the building of the 2010 FIFA World Cup stadia. This followed an investigation of the firms that did not...
Recent Research Reports
Defence 2014: A review of South Africa's defence industry (PDF Report)
Creamer Media’s Defence 2014 report examines South Africa’s defence industry, with particular focus on the key participants in the sector, the innovations that have come out of the sector, local and export demand, South Africa’s controversial multibillion-rand...
Road and Rail 2014: A review of South Africa's road and rail infrastructure (PDF report)
Creamer Media’s Road and Rail 2014 report examines South Africa’s road and rail transport system, with particular focus on the size and state of the country’s road and rail network, the funding and maintenance of these respective networks, and the push to move road...
Real Economy Year Book 2014 (PDF Report)
This edition drills down into the performance and outlook for a variety of sectors, including automotive, construction, electricity, transport, steel, water, coal, gold, iron-ore and platinum.
Real Economy Insight: Automotive 2014 (PDF Report)
This four-page brief covers key developments in the automotive industry over the past 12 months, including an overview of South Africa’s automotive market, trade figures, production and the policies influencing the sector.
Real Economy Insight: Construction 2014 (PDF Report)
This five-page brief covers key developments in the construction industry over the past 12 months. It provides an overview of the sector and includes details of employment in the sector, infrastructure and municipal spending, as well as insight into companies’...
Real Economy Insight: Electricity 2014 (PDF Report)
This five-page brief covers key developments in the electricity industry over the past 12 months, including details of State-owned power utility Eskom’s generation activities, funding and tariffs, independent power producers and prospects for the sector.
This Week's Magazine
Updated 4 hours ago JSE-listed real estate investment trust (REIT) Rebosis Property Fund achieved a distribution growth of 8.1% to 99.45c per linked unit in the financial year ended August 31, despite volatile market conditions.
Updated 4 hours ago A low-cost, inflatable incubator won this year’s international James Dyson design award, which aims to encourage and inspire the next generation of design engineers.
Updated 4 hours ago The World Bank released its ‘Doing Business 2015: Going Beyond Efficiency’ report last month and ranked South Africa 43 out of 189 global economies for its ease of doing business, with Singapore topping the rankings.
Updated 4 hours ago Air Products South Africa officially launched its R300-million Eastern Cape air- separation unit (ASU), at its new manufacturing facility in the Coega Industrial Development Zone (IDZ), earlier this month. It is the second facility that Air Products launched in South...
Updated 4 hours ago BMW South Africa (SA) has signed a power purchasing agreement with energy company Bio2Watt. The offtake partnership will bring renewable energy to the carmaker’s Rosslyn plant, north of Pretoria.