Sewage treatment system

A sewage treatment system comprising:

• a treatment tank that is a tank for receiving sewage, having a funnel disposed in the treatment tank on the bottom side thereof, a valve disposed on an outlet of the funnel and a drain pipe connected to the valve correspondingly;
• a stirring apparatus mounted in the treatment tank and including a first power motor that drives a shaft with blades while the shaft is extendable so that the blades rotate and stir the sewage;
• a spray part that is disposed with a second power motor for transmission of chemicals through a pipe having small holes therearound and the pipe located in an upper part of the treatment tank;
• and
• a centrifuge separator that is connected to the treatment tank for receiving water from the treatment tank in which contaminants in the sewage have been removed;
• the centrifuge separator having an inner drum arranged with filter cloth and an outer drum connected to an outlet pipe;
• the inner drum is driven to rotate by a third power motor thereunder so as to filter the water by centrifugation and the water is moved to the outer drum;
• the outlet pipe conveys the water purified.