Sustainability. Affordability. Efficiency

Maximising Operating Efficiency in Water and Wastewater Facilities

Water utilities require enhanced methods of engineering, energy supply optimisation and contextualised compliance monitoring.

Water Utilities – The Challenges

Operators of water and wastewater facilities face many challenges. They are not only required to provide affordable, reliable water and wastewater services, they must also be compliant with various government regulations while ensuring that their operations are sustainable.

As they endeavour to expand the availability of water to the general population at an affordable cost, water utilities are in need of more efficient methods of engineering, energy supply optimisation and contextualised compliance monitoring.

There are many global challenges. How would it be possible for engineers to find ways to create and reticulate clean, affordable water and wastewater services in developing countries using standard technologies? How can engineers balance the new cost equation between energy and water quality introduced by energy-hungry reclaiming and desalination technologies? What intelligent infrastructure options are available to enable automation vendors to deliver real-time data for multi-user operations decision-making?

Water and Wastewater

In conversation with global power industry leaders, shared insights have revealed three areas of strategic importance. These are the areas where AVEVA can assist in accelerating the Digital Transformation journey, so helping to shape a new energy future.

Water

As a semi-arid, water-stressed country, it is estimated (based on current usage trends) that South Africa’s demand for water will exceed availability by 2025

The population’s continuing industrialisation and urbanisation trends are expected to place the country’s water supply sources under further pressure, unless appropriate, corrective measures are put in place. The six major water use sectors are: irrigation; urban use; rural use; power generation; mining and bulk industrial and forestation. *The combined total water requirement for all user sectors for the year 2000 was 13 280 million m3/a.

Wastewater

South Africa has 986 wastewater treatment plants. Most of these are relatively small systems (half of these plants treat less than 0.5 Ml/day).

Although these plants operate using ageing infrastructure, an in-depth survey revealed that the need for additional or upgraded plant infrastructure; or the need for additional funding is not the root cause of the poor performance at the majority of surveyed plants. The most urgent challenge these plants are facing is the critical shortage of trained, skilled and experienced process controllers and mechanical/electrical maintenance staff – as well as the information required to guide optimised operations.

Water and Wastewater Industry Challenges

Water Industry

Minimising waste to balance supply and demand

The capability for instant municipal leak detection – and how to address the issue – can be made automatically available to qualified personnel using any mobile device. The automatic, remote monitoring and logging of meters greatly conserve human resources and cost – as well as facilitate billing.

  • AVEVA System Platform
  • Intelligence
  • InTouch
  • InTouch Access Anywhere
  • Historian
  • Mobile Operator Rounds
  • SmartGlance

Water availability and quality

Monitoring water quality from source to destination, through remote but collated measurements, using contemporary, wireless SCADA and IIoT technologies, can assist in the early detection of anomalies.

  • InTouch
  • AVEVA System Platform
  • Intelligence
  • Historian

Optimised use of effluent

As a result of water scarcity, all pollutants and effluent streams will increasingly require treatment to ever-higher standards, before being disposed of.

  • AVEVA System Platform
  • InTouch
  • Intelligence
  • Historian

Lack of necessary skills

In order to maximise efficacy, many geographically distributed companies are concentrating their knowledge base and information resources in a central location.

  • AVEVA System Platform
  • Historian
  • InTouch
  • Skelta BPM Workflow
  • Intelligence

Wastewater Industry

The establishment of new skills and competencies is especially relevant to economically disadvantaged communities. The single biggest challenge facing the wastewater industry in South Africa is the lack of trained personnel. Industrial automation and industrial IT technology can have a drastic impact to help address this challenge in the short term while providing the breathing room required for devising long-term solutions.

  • AVEVA System Platform
  • Historian
  • InTouch
  • Intelligence

Mechanical, electrical and infrastructural maintenance

These aspects depend on personnel, which can be guided remotely on proper maintenance procedures through mobile devices, even if they don’t have the necessary training.

  • Intouch Access Anywhere
  • PRiSM
  • Mobile Operator Rounds

Infrastructure and network information

Geographically distributed systems benefit from centralised SCADA and information systems. These systems are backed by a centralised pool of expertise, for event resolution and guidance.

  • AVEVA System Platform
  • Intelligence
  • InTouch
  • Historian
  • Skelta BPM Workflow

Residue and sludge – management and disinfection

The inadequate disposal and use of sludge were recorded at 81% of the surveyed plants, while it was found that none of the surveyed plants was compliant with new SA Sludge Guidelines. While training will be of assistance, measurement leads to quantifying performance against regulations.

  • AVEVA System Platform
  • Historian
  • InTouch
  • Intelligence

Environmental impacts and regulatory compliance

It has been established that 30% of plants require immediate intervention in order to avoid crisis situations, such as outbreaks of waterborne diseases. In the short to medium term, intervention would be necessary at more than 66% of the plants.

The Department of Water Affairs and Forestry requires a 95-percentile compliance to the conditions stipulated in the authorisation. However, if these performance criteria were strictly enforced, only 4% of the surveyed plants are proven to be adequately maintained and operated.

  • AVEVA System Platform
  • Historian
  • InTouch
  • Intelligence

Trusted, Proven Smart Water Solutions and Services

Digitally transform your water and wastewater operations and achieve operational excellence by applying AVEVA’s proven, trusted industry-leading technology solutions and services.

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