Melt Filtration (Multi Bed Filtration/Deep Bed Filter)
The clarified liquor from the melt clarification system shall contain suspended solids which shall plug the interstitial spaces and blind the pores of decolourization resin. Deep bed multimedia filters shall be used to produce the filtered liquor which shall flow through the ion exchange columns without any pressure build up.
The static bed filter of deep bed filtration system removes suspended solids from clarified melt by passing through a carefully selected filter media. As the melt passes through the media the suspended solids get trapped. Periodically the trapped solids are flushed out to clean the filter media.