Abstract: In order to auto control temperature and humidity of the earthworm biological treatment of municipal sludge treatment reactor. By using of SVM (support vector machine) and MPC (model predictive control) technology, an automatic control model was constructed. The temperature and relative humidity of the earthworm biological reactor could be controlled accurately according to the set point. The method can be used to control the temperature and relative humidity of the reactor.

Key words: earthworms bioreactor, support vector regression, model predictive control