Mar 30, 2012
Lack of capacity leads to wastewater treatment plant upgradesBack
Cape Town|Construction|Engineering|Johannesburg|Tshwane|Africa|Design|Efficiency|PROJECT|Project Management|Projects|Safety|SSI|Sustainable|System|Systems|Water|Africa|South Africa|Nereda Plant|Adequate Services|Equipment|Service|Services|Systems|Apies River|Western Cape|Alfred Schröder|Infrastructure|Japie Van Eeden|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)
Creamer Media Senior Deputy Editor Online
Other Water News
Article contains comments
Recent Research Reports
Water 2015: A review of South Africa's water sector (PDF Report)
Creamer Media’s Water 2015 Report considers the aforementioned issues, not only in the South African context but also in the African and global context in terms of supply and demand, water stress and insecurity, and access to water and sanitation, besides others.
Input Sector Review: Pumps 2015 (PDF Report)
Creamer Media’s 2015 Input Sector Review on Pumps provides an overview of South Africa’s pumps industry with particular focus on pump manufacture and supply, aftermarket services, marketing strategies, local and export demand, imports, sector support, investment...
Liquid Fuels 2015: A review of South Africa's liquid fuels sector (PDF Report)
Creamer Media’s Liquid Fuels 2015 Report examines these issues in the context of South Africa’s business environment; oil and gas exploration; fuel pricing; the development of the country’s biofuels industry; the logistics of transporting liquid fuels; and...
Road and Rail 2015: A review of South Africa's road and rail sectors (PDF Report)
Creamer Media’s Road and Rail 2015 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 infrastructure and network, the funding and maintenance of these respective networks, and...
Defence 2015: A review of South Africa's defence sector (PDF Report)
Creamer Media’s Coal 2015 report examines South Africa’s coal industry with regards to the business environment, the key participants in the sector, local demand, export sales and coal logistics, projects being undertaken by the large and smaller participants in the...
Real Economy Year Book 2015 (PDF Report)
There are very few beacons of hope on South Africa’s economic horizon. Economic growth is weak, unemployment is rising, electricity supply is insufficient to meet demand and/or spur growth, with poor prospects for many of the commodities mined and exported. However,...
This Week's Magazine
Additive manufacturing, better known as 3D printing, has the potential to completely change the relationships between individual consumers, professional designers and manufacturers. So argued Loughborough University Reader in Computer Aided Product Design Dr Ian...
Airbus Defence and Space: Military Aircraft has highlighted that its A330 Multirole Tanker Transport (MRTT) has significant commonalities with the Airbus A330-200 commercial airliner, upon which it is based. The South African Air Force (SAAF) once operated a fleet of...
Financial services provider Nedbank launched the second edition of its Carbon Footprinting Guide earlier this month, which is aimed at demystifying carbon footprint approaches and help readers grasp the main concepts of carbon measuring, monitoring, reporting and...
This year marks the thirtieth anniversary of Caterpillar’s first backhoe loader. This also coincides with the worldwide release of its latest-generation F2 series backhoe loader, which was launched at supply chain services company Barloworld Logistics’ Big Dig Day in...
A shortage of software engineers is leading to fewer information technology (IT) projects in private and public sector organisations. This also places a dampener on the economy, as IT is an integral part of business and civil service, says University of Witwatersrand...