Further work is still necessary to solve the problems with silicate scaling in this concentration stage. (Quelle: bmb+f Forschungslandkarte Deutschland 1998)
At a pH of the retentate of between 6 and 7, problems with silicate scaling occurred. (Quelle: bmb+f Forschungslandkarte Deutschland 1998)
With a permeate recovery of up to 90%, the reverse osmosis partial desalination stage was operated for a long period (six months) without scaling and fouling problems - the membrane permeability remained constant with more than 96% salt rejection. (Quelle: bmb+f Forschungslandkarte Deutschland 1998)
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