Abstract
This article presents the results of research on preserving sludge from meat industry waste waters. The sludge precipitated by chemical purification of effluents contains considerable amounts of proteins and fats which under certain conditions can be used for feeding to animals. The preservation of sludge was based on lactic fermentation conducted with the use of Lactobacillus delbrückii. Molasses, as the source of sugars which are necessary in the process of silage, were added to the sludge. Basic conditions for preserving sludge through this method, such as addition of molasses, sludge moisture and fat content, were established. The results of the research imply that silage of sludge from the meat industry effluents can be a good way of preserving sludge and converting it into a fodder.
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