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Slovak leading producer of aluminium, ZSNP headed to the negative impact of its production activities. The feed water for the sludge bed has very high alkalinity (pH 13–14) and contains free NaOH, anions of OH-, CO3 2-, cations of Na+, K+, metals as Al (1 g/l), heavy metals Cr, As, Mo, V and some organic matters.
The typical electrodialysis mode Feed & Bleed has been chosen for this case. Design of membrane process was done with emphasis to reaching the quality of desalinated water (6 g/l) and maximal concentration of brine (180 g/l). The fundamental advantages are in the flexibility of process control allowing to obtain wanted product quality and quantity.
MEGA has supplied High Purity Water Treatment EDI units as a part of a novel membrane-only water treatment solution. The facility in the company ENERGY in Ústí nad Labem, Czech Republic, needed an upgrade after decades of heavy duty.
Ultrafiltration, reverse osmosis and EDI units were selected to process river water into ultrapure water. MPure™ EDI by MEGA has proven to be able to operate in demanding conditions with high CO2 level, cope with differences in input feed and steadily provide the heating facility with the ultrapure water with 16 MΩ resistivity. Contact us below to find out how a similar solution can help your business.
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