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My idea is to install a filtration system to clean the process water so this can be used in the flocculent system, saving approximately 12,500m3 of fresh water a year, Water shortages was highlighted as a potential issue in the national news on the 19th March 2019.
I have determined that my employer’s site used 14,083m3 of fresh water over the last year to supply the site flocculent make down system. The cost of an m3 of water comes to approximately £1.83. This means the cost of this water is £25,771.89 to site, but more importantly a valuable resource.
My employers site has its own water circuit that is used for multiple processes. This water is stored in onsite lagoons and pumped around the processes; it would have negligible cost to use this water instead of fresh water. However, the reason fresh water is used is due to the quality of this water compared to the site process water circuit – the water used for the mixture of flocculent has to be completely clean.
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