By Johan Potgieter, Cluster Industrial Software leader, and Ettienne van Niekerk, Cluster Water Segment leader at Schneider Electric.
Ettienne van Niekerk.
South Africa’s water and wastewater (WWW) woes are well documented and mimic what can be described as a worldwide crisis, with the United Nations citing that on a global scale, 1,8 billion people are using contaminated water, and 2,3 billion people live in water-stressed countries.
The country’s water infrastructure challenges are further exacerbated by loadshedding, which now sees residents from municipalities such as Johannesburg, Tshwane and Cape Town urged to use water sparingly as reservoirs are not filling up fast enough due to power interruptions.
In addition, wastewater treatment faces ongoing challenges. For example, many wastewater treatment plants are not operating at full capacity, leading to the release of untreated or partially treated wastewater into rivers and other water bodies. This has a significant impact on the environment and public health, leading to high rates of water-borne diseases such as cholera and typhoid.
The above directly impacts communities, particularly those residing in rural and informal settlements that don’t have access to clean water or adequate sanitation facilities – a basic human right.
To mitigate water quality issues, South Africa has adopted the Blue and Green Drop Programme which has been effective in raising awareness of WWW management issues in the country.
The good news is many municipalities have taken steps to improve their services in line with the Blue and Green Drop Programme. However, it has also faced some criticism, with some municipalities raising concerns about the high cost of compliance and subsequent lack of support.
Whichever way you look at it, South Africa’s WWW are facing major challenges and require firm investment in infrastructure and technology to stabilise and future-proof its operations.
Johan Potgieter.
A unified approach
Digitalisation and digitisation can bring significant benefits to WWW such as improving efficiency and reliability of water supply, reducing water loss, and optimising the use of water resources.
A good place to start is investing in a robust Unified Operating Centre (UOC). For one, it provides a centralised facility that brings together all the information and tools needed to monitor, control and optimise WWW operations. A UOC can go a long way in improving the efficiency, reliability and safety of WWW services.
A UOC typically incorporates a range of digital technologies and systems such as:
• Scada systems that collect data from remote WWW infrastructure and provide real-time information on the status of operations.
• Geographic Information Systems (GIS) that use maps and spatial data to provide a visual representation of WWW infrastructure, enabling operators to easily identify and locate issues.
• Advanced analytical and modelling tools that allow for the analysis of large amounts of data on water usage, infrastructure and environmental factors, which can be used to optimise operations and identify potential issues.
• Remote monitoring and control systems that enable the remote monitoring and control of water and wastewater infrastructure such as pumps, valves, and treatment plants.
• Alarm and event management systems. These systems provide real-time notifications of alarms and events, enabling operators to quickly respond to issues.
Through Schneider Electric’s innovative smart water technologies and services, we aim to make water safe, reliable, sustainable, and efficient across the entire water cycle.
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