Nitreat® the Optimum Solution
NITREAT® THE OPTIMUM SOLUTION FOR ANGLIAN WATER
Advanced optimisation of ACWA Services’ robust Nitreat® ion exchange process has enabled significant Capex and Opex savings for Anglian Water, the Society of Chemical Industry’s IEx (Ion Exchange) 2012 conference in Cambridge heard recently.
Robert Ingham, ACWA Services Manager-Membrane Systems, and Glyn Spencer, Anglian Water Services (AWS), Senior Operational Scientist explained to the audience that the solution, which has gained almost universal acceptance in the UK water industry as a highly-reliable and competitive technology for removing nitrate from drinking water, has had its day-to-day efficiency improved by an AWS Optimisation Team with input from ACWA.
With nitrate levels at many sites lower than the extrapolated data had predicted, the removal plants were operating at or close to maximum turn-down and some were not operating at best efficiency under startup conditions, the duo told the conference.
The aim was to increase the efficiency of operation at all sites where the solution was in operation of which there are currently 15. And to further develop the skills and capability of AWS technicians and service personnel to enable an ongoing optimisation process.
As well as this work, Ingham and Spencer discussed the ‘Efficiency Challenge’ that the economic regulator OFWAT has set for water utilities during the current AMP 5 period. To tackle this, AWS and ACWA set up a joint team with the aim of confronting preconceived design standards.
The presenters explained that the in-depth design review had produced significant Capex savings. The Nitreat® plants had been designed as two streams – one duty, one standby – but the robustness and reliability of the system, proved in operation during AMP 4, enabled a decision to opt for full redundancy only on the most critical site in AMP 5.
The reduced need for redundancy, coupled with other design changes, meant the plant rooms could be smaller,
Advanced optimisation of ACWA Services’ robust Nitreat® ion exchange process has enabled significant Capex and Opex savings for Anglian Water, the Society of Chemical Industry’s IEx (Ion Exchange) 2012 conference in Cambridge heard recently.
Robert Ingham, ACWA Services Manager-Membrane Systems, and Glyn Spencer, Anglian Water Services (AWS), Senior Operational Scientist explained to the audience that the solution, which has gained almost universal acceptance in the UK water industry as a highly-reliable and competitive technology for removing nitrate from drinking water, has had its day-to-day efficiency improved by an AWS Optimisation Team with input from ACWA.
With nitrate levels at many sites lower than the extrapolated data had predicted, the removal plants were operating at or close to maximum turn-down and some were not operating at best efficiency under startup conditions, the duo told the conference.
The aim was to increase the efficiency of operation at all sites where the solution was in operation of which there are currently 15. And to further develop the skills and capability of AWS technicians and service personnel to enable an ongoing optimisation process.
As well as this work, Ingham and Spencer discussed the ‘Efficiency Challenge’ that the economic regulator OFWAT has set for water utilities during the current AMP 5 period. To tackle this, AWS and ACWA set up a joint team with the aim of confronting preconceived design standards.
The presenters explained that the in-depth design review had produced significant Capex savings. The Nitreat® plants had been designed as two streams – one duty, one standby – but the robustness and reliability of the system, proved in operation during AMP 4, enabled a decision to opt for full redundancy only on the most critical site in AMP 5.
The reduced need for redundancy, coupled with other design changes, meant the plant rooms could be smaller,