ORGANIC WASTE SLUDGE VOLUME REDUCTION METHOD USING BY COMBINED THERMOPHILIC AEROBIC AND MESOPHILIC ANAEROBIC DIGESTION AND ELECTRO-DESTRUCTION SYSTEM AND APPARATUS THEREOF

摘要

The present invention relates to a method and apparatus for reducing activated sludge using a high temperature aerobic digestion tank, a medium temperature anaerobic digestion tank, and an electrolysis tank, and an object thereof is to deteriorate effluent water quality and accumulation of inorganic matters generated when reducing excess sludge generated in an activated sludge process. To provide a stable and efficient sludge reduction method and apparatus to minimize the.;According to the present invention, it is possible to perform an economical treatment as compared to the conventional sludge treatment method such as incineration or landfill. In addition, since the denitrification and the decomposition of the hardly decomposable organic matter is treated by electrolysis, the overall treatment process can be stabilized and perfect water purification below the discharge standard can be achieved. In addition, it is possible to provide the temperature required in the anaerobic digestion tank and high temperature aerobic digestion tank by using the gas (Biogas) generated from the middle temperature anaerobic digestion tank. In addition, the excess sludge generated in the biological treatment process can be composted through a self-heating thermophilic aerobic digestion tank, and the facility or cost due to the excess sludge treatment can be saved.;High temperature aerobic digester, self-heating thermophilic aerobic digestion, electrolysis, sludge reduction, surplus sludge, mesophilic anaerobic digester