Sludge separation and high-value utilization device and treatment method thereof

The invention discloses a sludge separation and high-value utilization device and a treatment method thereof. The sludge separation and high-value utilization device comprises a tempering sterilization tank, a separation device, a dispensing tank, a dehydration dryer, a microwave oven, a crusher, a granulator, a rotary kiln and a flue gas purification system. According to the method, organic matters and inorganic matters in the sludge are separated, and then the separated organic sludge and inorganic sludge are respectively utilized. Organic sludge is used as a raw material, an activating agent and a magnetic substance are added and mixed with the organic sludge, the mixture is subjected to microwave treatment to obtain carbide, and the carbide is washed and dried to obtain magnetic activated carbon; the method comprises the following steps: dehydrating and drying inorganic sludge serving as a raw material, granulating with auxiliary raw materials, feeding into a rotary kiln, roasting into ceramsite, recoveri