NOVELTY - Pollutants and sand are removed from sewage and wastewater which are transferred to anaerobic tank (5). Sewage and wastewater are mixed with sludge and flown into contactor (8) and aeration tanks (14,18). Supernatant is separated and discharged, and return sludge is transferred to sporing tank (30). Spores of Bacillus sp. and annihilating microbial cells of Bacillus sp. are generated in sludge. The cells are degraded and the resulting material is dewatered. The sludge is mixed with sewage and wastewater and denitrified.    USE - Advanced treatment of sewage and wastewater.    ADVANTAGE - The method efficiently removes nitrogen, reduces odor of excess sludge, increases dissolved oxygen of effluent, improves effluent quality by effectively removing organic matters, suspended solids, and phosphorus, and reduces the number of Escherichia coli. The method is simple and economical.    DETAILED DESCRIPTION - Pollutants and sand are removed from sewage and wastewater in a pre-processing unit (1), and sewage and wastewater are transferred from a flow equalization tank (2) to an anaerobic tank by an inlet pump (3). Sewage and wastewater introduced from the anaerobic tank are mixed with return sludge passing through a sporing tank, and then flown into a limited aerobic rotary biofilm contactor through an inlet pipe (7) after uniformly distributing sewage and wastewater in a flow rate distribution tub (6). An oxidation-reduction potential (ORP) value of sewage and wastewater is maintained at 300 mV in the limited aerobic rotary biofilm contactor. A rotary biofilm contactor (9) is mounted to be sunk in the water by half, and a sealed rotary biofilm cover (10) covers an upper portion of the limited aerobic rotary biofilm contactor to block atmospheric air. The sealed rotary biofilm cover is mounted with a control valve at an upper portion, an air flow controller (11), and an exhaust pipe (11-1). Sewage and wastewater are introduced from the limited aerobic rotary biofilm contactor to a limited aerobic aeration tank via a limited aerobic rotary biofilm outlet pipe (13) and then to an aerobic aeration tank. The ORP value of sewage and wastewater is maintained at 300 mV uniformly by mounting aerator (15) and automatic air flow controller (17) around the bottom of the limited aerobic aeration tank. Sewage and wastewater are flown from the limited aerobic aeration tank into the aerobic aeration tank to maintain dissolved oxygen of sewage and wastewater to 0.5-2 mg/l. The limited aerobic aeration tank is mounted with a aerator (19) on the bottom for air supply, a detector (20) for dissolved oxygen concentration, and automatic air flow controller (21). Aerators (15,19) are connected to a compression air supply (23) capable of controlling air flow rate by an air pipe (22). The supernatant is separated from sewage and wastewater by a hollow fiber membrane-microfiltration equipment (24) mounted in water at a rear portion of the aerobic aeration tank and discharged through a disc filter (25) and a discharge flow meter (26). The mixture solution (return sludge) of the aerobic aeration tank is transferred to the sporing tank by a return sludge pump (28) via a return sludge pipe (29), with 50-100% inlet flow rate. Spores of Bacillus sp. and annihilating microbial cells of Bacillus sp. are generated in the return sludge by keeping the sporing tank in anaerobic condition. The sludge is partially transferred from the sporing tank to a thickener (35) by a sludge pump (34) to concentrate the sludge. The annihilated microbial cells are completely degraded in an aerobic treatment tank (37), and the resulting material is dewatered in a de-waterer (38) to transfer separated liquid to a pre-processing unit and discharge dewatered cake to the outside. Sludge is prevented from being settled by mounting an agitator (30-1) to the sporing tank and maintaining the sludge in anaerobic state to form spores of Bacillus sp. The return sludge is transferred to the anaerobic tank and uniformly mixed with sewage and wastewater to release phosphorus from the mixture while keeping the mixture in anaerobic state. The resulting material is transferred to the limited aerobic rotary biofilm contactor via the distribution tub to carry out aerobic denitrification of the resulting material. An INDEPENDENT CLAIM is included for advanced treatment device.    DESCRIPTION OF DRAWING(S) - The drawing shows a process diagram of the advanced treatment method.    Pre-processing unit (1)    Flow equalization tank (2)    Inlet pump (3)    Anaerobic tank (5)    Flow rate distribution tub (6)    Inlet pipe (7)    Limited aerobic rotary biofilm contactor (8)    Rotary biofilm contactor (9)    Sealed rotary biofilm cover (10)    Air flow controller (11)    Exhaust pipe (11-1)    Limited aerobic rotary biofilm outlet pipe (13)    Limited aerobic aeration tank (14)    Aerators (15,19)    Automatic air flow controller (17)    Aerobic aeration tank (18)    Dissolved-oxygen-concentration detector (20)    Automatic air flow controller (21)    Air pipe (22)    Compression air supply (23)    Hollow fiber membrane-microfiltration equipment (24)    Disc filter (25)    Discharge flow meter (26)    Return sludge pump (28)    Return sludge pipe (29)    Sporing tank (30)    Agitator (30-1)    Sludge pump (34)    Thickener (35)    Aerobic treatment tank (37)    De-waterer (38)