Apparatus having rotary activated Baccillus contractor for purifying sewage and wastewater and method using the same

A method of purifying sewage and wastewater, comprising the steps of:

• removing suspended solids included in sewage and wastewater by sequentially passing the sewage and wastewater through a general automatic impurity treating apparatus and a equalization tank;
• removing pollutants included in sewage and wastewater by injecting a Bacillus activator into sewage and wastewater that has passed through the general automatic impurity treating apparatus and the equalization tank and then passing the sewage and wastewater including the Bacillus activator through a distribution tank and a microbe contact tank provided with a rotary activated bacillus contactor including a reticular rotator;
• forming MLSS by passing the sewage and wastewater that has passed through the step of removing pollutants through a measuring tank and a bioreaction tank, thus removing organic matter and suspended solids included in the sewage and wastewater;
• controlling the concentration of adhered and suspended microbes included in the sewage and wastewater that has passed through the microbe contact tanks and the bioreaction tank by moving part of the sewage and wastewater that has passed through the step of forming MLSS to a settling tank and recirculating part of the sewage and wastewater to the distribution tank and the measuring tank;
• separating MLSS included in the sewage and wastewater into solids and liquids in the settling tank;
• and
• treating sludge by recirculating part of the solids included in the sewage and wastewater that has passed through the step of separating MLSS to the distribution tank and the measuring tank, passing recirculating solids through a sludge thickener, thus treating the solids, and discharging supernatant liquids to the outside.