In conventional treatment, colloidal silica is concentrated by evaporation method. This conventional method causes increase in steam & power consumption resulting in high operational cost to concentrate colloidal silica from 15% to 40%.

Newly developed, Ultra filtration (UF) tubular membrane system is used as an intermediate process/ step to concentrate Colloidal Silica from 15% to 25%. 25% concentrated stream is fed to evaporator to increase concentration up to 40%. Ultra filtration (UF) tubular membrane system saves cost of fuel/ energy consumption of evaporator and hence makes the process economically feasible compared to conventional treatment.

Published on: 24 Aug. 2019 Uploaded on: 10 July 2020
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