OKADA Dryer Schematics

The OKADA Dryer operates through dehydration principle by circulating dry hot air at 50°C to 60°C through a designated volume of wet sludge cake. Water moisture from the wet sludge cake is adsorbed into the dry air is then pass through the dehumidifying unit where water moisture in the air is then condensed via an evaporator coil. The dry air is then reheat with a condenser coil which now have enormous water adsorbing capacity; it is then reintroduced into the drying chamber. The air is circulated in a closed-loop through the entire system without the need for an air emission control system. The refrigeration cycle of the combined energy of both cold and hot heat exchangers; gives an advantage of high energy efficiency in the drying process. Energy consumption is approximately 0.26 to 0.36 kWh for every kilogram of sludge dried.