I. Overview on drying technology
The injected low temperature air dry the sludge with a circle way. Through the sludge layer, the dried air(20% r.H) that is heated up to 50℃ generate wet air(30℃，99% r.H), which condensate and remove the water on the dryer, and then heat the air flow again on the condenser. The dried air moves circularly in the system, and dried air flow moves in the closed-loop, and the waste is removed during the water condensation, so the fetor prevention device is no need.
II. Technology advantages
1.Sludge contains 10% water after drying
2.Low temperature operation, low power consumption, low operation cost, and without waste air drain
3.Break the cell wall by spectrum technology
4.Durability and resistance, easy operation, free pilots cale experiment
