Abstract
This study aims to apply an intermittent aeration composting system with time-varying ON/OFF control to a composting facility in operation and demonstrate the composting characteristics such as temperature and moisture content and the effect of reducing blower power consumption. The results showed that the system sustained high-temperature periods of 60 ℃ or more than conventional continuous aeration and simple intermittent aeration methods, leading to a more uniform fermentation of the compost material. The persistence of this high-temperature period resulted in a moisture content reduction comparable to that of continuous aeration, contributing to the drying of the compost. Furthermore, the power consumption of the blower with this system was reduced by 81 % compared to continuous aeration and by 60 % compared to simple intermittent aeration. The practical advantages of these time-varying intermittent aeration systems are sufficiently high compared to conventional aeration methods.
