UK FOCUS iii
obtained from other instruments, such as ammonia and turbidity analyzers, the company now has a complete picture of its water quality at all times.
Obtaining real-time data on phosphate levels helps ensure the company never strays outside its consented limits. The data is also a boon when it comes to planning future investments designed to further improve effluent quality.
Taking the wider view
The drive to greater efficiency and accountability in the water sector makes it desirable for measurement data to be able to be shared as widely and as easily as possible. For this to happen requires a shift in both mindsets and infrastructures that have until now allowed data to effectively be locked into location or application-specific silos with limited opportunities for wider dissemination.
AWT420 front view - pH & cond
Continuous measurement helps compliance
With the introduction of increasingly stringent regulations governing the discharge of water to the the environment, it quite literally pays to use the best available technology to minimise the risk of any infringements.
The need to measure phosphate levels was behind one UK water company’s decision to install 120 Aztec 600 phosphate analysers in wastewater treatment plants throughout its operating area. With the ability to accurately measure phosphate levels down to 0.0016ppm, the analysers are helping to ensure that the company keeps within the increasingly stringent consent limits set by the UK Environment Agency.
Operating as part of a dosing control system alongside ammonia analyzers, iron analyzers and turbidity monitors, the phosphate analysers have reduced the company’s reliance on manual sampling.
Connected to the company‘s eSCADA system, the analysers provide continuous real-time data, including any alarms generated by issues such as high phosphate levels. Combined with the data
Whilst digital instrumentation brings great benefits to the management and monitoring of individual processes, it offers even greater advantages if seen as part of a more strategic, company-wide process of digitalization. The rise of web- connected devices allows companies to benchmark their various facilities against each other to tease out best practice.
In this way, data can be used not only to maximize process performance but also to address other key areas, including improving customer satisfaction, determining the most effective allocation of capital and enabling better decision-making to improve day-to-day business, financial, and operational activities.
Sharing this data is being assisted by the growing capabilities of artificial intelligence and machine learning. With these technologies, the traditional challenge of data – how it is analysed, processed and shared – is increasingly being addressed. The wealth of data produced by digital and connected instruments across a company can be collected and analysed by software solutions that share inputs from sensors, analysers, and control systems. The result is a better, overall view of what is happening, helping operations achieve tighter integration across functions.
This is particularly beneficial for meeting the water industry’s total expenditure (TOTEX) approach, with its emphasis on holistic network management. Here, the ability to share data between
AWT210 Front View pH
instruments in a network more efficiently makes it easier to obtain a clearer picture of what is happening throughout a network rather than being focused on a few specific parts of it.
Connected with this is the ability to to use maintenance resources more effectively. Data from instruments can be used to create predictive maintenance routines based on actual performance, enabling employees to be deployed more effectively, with the knowledge and tools needed to address any potential issues.
Summary
More information, better control, less cost, more focused maintenance, fewer breakdowns and a substantially reduced chance of water quality incidents – when it comes to wastewater treatment, the all-round benefits offered by the latest generation of online digital sensors and analyser systems make them the ideal solution for water companies needing to find ways to keep a continuous eye on process performance and regulatory compliance.
For more information, visit
www.abb.com/measurement, call 0870 600 6122 or email
enquiries.mp.uk@
gb.abb.com ref. ‘digital water quality sensors’.
Author Contact Details Julian Edwards, Continuous Water Analysis Product Manager, UK & IE, ABB Measurement & Analytics • Howard Road, St Neots, Cambs, PE19 8EU • Tel: +44 (0)870 600 6122 • Email:
enquiries.mp.uk@
gb.abb.com • Web:
www.abb.com/measurement
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