Abstract: A large amount of treated gas containing odor components is efficiently deodorized by performing ozone deodorization after water molecule deodorization, and thereafter performing ion deodorization. A composite deodorization system is provided with a first chamber for performing the water molecule deodorization connected with a fermentation system by a gas introduction opening supplied with the treated gas containing odor components from the fermentation system, a second chamber for performing ozone deodorization connected with the first chamber by a flow passage tube, a third chamber for performing ion deodorization connected with the second chamber by a connection tube, an ozone filter incorporated at a connection position of the second chamber and the connection tube, and a third chamber having a gas discharge opening for discharging the treated gas.

Abstract: The present invention produces excellent compost in a short time by always measuring environmental conditions and measuring the quality of compost being produced. A maturation chamber and a fermentation chamber are each provided with corresponding ones of various sensors for measuring the concentrations of carbon dioxide and oxygen, temperature, humidity, the concentration of ammonia, and the like. The sensors are connected via remote I/O modules to a panel computer provided in the monitoring chamber. A measuring robot installed in the measuring chamber is provided with sensors for the temperature, water content, and PH of compost being produced, and the concentrations of carbon dioxide and ammonia at which the compost is produced. The measuring robot is connected to a panel computer via a remote I/O module.