FIELD: wood industry.
SUBSTANCE: method includes grinding tree bark to an average particle size of 1-5 mm, mixing the ground bark with manure of farm animals and activated sludge until the homogeneity degree of the resulting mixture is 90-95%. The ratio of the mixture components - ground tree bark / manure / activated sludge - is, %: 40-45 / 45-50 / 5-10. Then aerobic fermentation of the resulting mixture in fermenters is carried out with the forced aerating of the mixture by air flow and recurring stirring.
EFFECT: shortening the processing time of the tree bark and increasing the productivity of the process of its processing in industrial volumes.
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