PROCESS FOR THE ACTIVATED SLUDGE TREATMENT OF SEWAGE WATER OR INDUSTRIAL WASTEWATER USING BLAST FOUR DAIRY PARTICLES AS FIXATORS

摘要

A fluidized-bed type activated-sludge treatment of sewage or industrial waste water characterized in that a fine powder of a granulated blast furnace slag is added to an aeration tank of the activated-sludge treatment installation to facilitate the treatment. In a fixed-bed type activated-sludge treatment of the sewage or industrial waste water, the granulated blast furnace constitutes the main constituent element of a ceramic material to be mounted in the aeration tank so as to serve as a fixing carrier for the activated sludge.