Organic waste treatment apparatus

PURPOSE: A combination of a high efficient 2-phase anaerobic digestion process and an evaporation-concentration process reusing vapor for high concentration organic waste treatment is provided to save energy while organic waste and wastewater are treated. CONSTITUTION: Methane gas is generated by digesting organic waste using anaerobic microorganisms and is used as energy. The generated methane gas is used as fuel for a gas boiler or a gas generator. The methane gas is converted into thermal energy and is used as auxiliary thermal energy for an evaporation-concentration process reusing vapor. High temperature vapor is re-compressed, and the re-compressed vapor is used as thermal energy. [Reference numerals] (AA) Vapor compressor; (AAA) Methane fermentation bath; (BB) Vapor; (BBB) Methane fermentation bath transferring pump; (CC) Abbreviation; (CCC) Storing tank; (DD) TC: automatic temperature controller; (DDD) Methane fermentation bath heat exchanger; (EE) LT: automatic water level controller; (EEE) Biological secondary treatment process; (FF) LI: thermometer; (GG) Evaporator; (HH) Introducing water automatic valve; (II) Heat exchanger; (JJ) Circulating pump; (LL) Vacuum pump; (MM) Vacuum condenser; (NN) Treated water automatic valve; (OO) FROM: acid fermentation bath heat exchanger; (PP) TO: storage tank; (QQ) Treated water circulating pump; (RR) Concentrated liquid automatic valve; (SS) Primary treatment(pressure floatation or centrifugal dehydration) organic waste; (TT) Bio gas out(using boiler fuel); (UU) FROM: treated water circulating pump; (VV) Acid fermentation bath; (XX) Acid fermentation bath heat exchanger; (YY) TO: vacuum condensor; (ZZ) Acid fermentation bath transferring pump