
In the proposed project the kraft black liquor obtained from the digestion of Prosopis juliflora hard wood, having concentration of around 12-15%, will be concentrated in an ultrafiltration (UF) process combined with a suitable prior treatment. The reject stream from UF, which is expected to have higher concentration will be fed to a double effect evaporator for further concentration up to more than 50%, and finally to a spray drier. The permeate stream from the UF containing much of alkalies an...
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