PLANT FOR AEROBIC AND ANAEROBIC DIGESTION TREATMENT

PURPOSE: An anaerobic and aerobic water treating apparatus and method are provided to improve the diversity of apparatus designs and to reduce a time and a cost required for installing processes. CONSTITUTION: A water treating apparatus(10) includes a reactor(3), a plurality of sludge separating units(5), an aerating unit(7), a precipitating part(6), and an organic material eliminating bath(8). Wastewater is introduced into the reactor, and an aerating process and a denitrifying process are implemented. The sludge separating units are stacked in the reactor. A retention space is formed to collect gas which rises from the lower side of the reactor. The sludge separating units separate sludge from treating water generated from the wastewater. The aerating unit introduces the gas into the reactor. An ammonia eliminating bath eliminates ammonia. The organic material eliminating bath eliminates organic materials by introducing ozone into the treating water.