Abstract: The invention relates to a method for preserving aqueous solutions or dispersions containing organic substances, and to an apparatus for carrying out this method and the application of the method. Also a method of preserving aqueous solutions or dispersions comprising glue or starch is disclosed.
Abstract: The invention relates to a method for reducing slime and film formation in plants in which the water of paper and pulp machines is circulated and in plants in which cooling water is circulated. By adding specific nutrients one influences the growth of the mixed microorganism population present in the circulating water, i.e. shifts it in favor of the microorganisms which do not form slime and film.