DWI R31 compliant skid mounted water treatment filtration system meets the turbidity challenge set by ageing conventional borehole stations.
Amazon Filters skid mounted or containerised filtration solutions can be deployed quickly off the shelf or custom manufactured for more challenging installations such as the requirements at these two old stations.
What Challenges Arise with Ageing Water Treatment Buildings?
1925 GWS Building (A)
A ‘conventional’ borehole station constructed around 1925 with the kind of issues you would expect from a 94+ year old building. The MCC (Motor Control Centre) is housed in a small control building with kiosks for phosphate dosing and UV treatment. Access to the building is limited creating another, but not insignificant, challenge for the Amazon Filters team and the ongoing maintenance of the works.
Chlorination and UV treatment have been used at this site for disinfection, with MSP dosing to reduce plumbosolvency, however, deterioration of unlined pipes and the location of the sample point are believed to be the cause of high turbidity and as a result this station was taken out of service to prevent any further DWI reportable events.
Grade II Listed GWS Building (B)
The station is a grade II listed building constructed in 1897 with a site-wide tree preservation order. The local city council confirmed that listed building consent would be required to improve the works.
Water is abstracted by duty/standby pumps and UV treated and chlorinated, with MSP dosing to reduce plumbosolvency. The station feeds into a reservoir which supplies the local area or the water is pumped to other local Reservoirs.
How to Recommission Old Water Treatment Stations To DWI R31 Standards of Supply!
Amazon Filters Solution
The project management, design, and manufacture of these custom units was undertaken solely by Amazon Filters providing a cost effective and sustainable solution.
What Type of Filter Is Used To Meet DWI Regulation 31 Standards?
The typical filter used in R31 solutions is the SupaSpun II absolute rated depth filter – These high-performance cartridges excel in dirt holding capacity and give extremely low clean pressure losses as a result of the strictly controlled manufacturing of the fibre matrix.
The performance of the SupaSpun II makes it the ideal cartridge for tackling water turbidity but also extremely effective in controlling cryptosporidium and maintaining quality of supply where the groundwater contains oxidised iron.
DWI Regulation 31
The Drinking Water Inspectorate (DWI) Regulation 31 requires that products used in the production of potable water for public supply must be listed on the Secretary of State’s list of approved products – Amazon Filters’ R31 SupaSpun II filters are on this list!
We also offer flexibility and onsite assistance, providing expert support to contractors and water companies to establish the optimum running and most cost-effective solution to suit your budget and site requirements.