FIELD: chemistry.
SUBSTANCE: method of processing distillery stillage from grain material includes flocculation thereof at the initial pH of the processed stillage and separating into a residue and a clarified aqueous phase, the flocculant used being an inorganic salt flocculant - sodium chloride or calcium chloride with salt concentration of 35-40 g/l in amount of 4-5 m3 per 18-20 m3 stillage.
EFFECT: invention avoids a step of neutralising the initial stillage, provides maximum purity of the obtained protein concentrate and enables to recycle the inorganic flocculant.
1 dwg
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