Abstract
This report concerns thermal management in the high grade septic tank. The insulation of the home scale combination septic tank is done. Iron scraps is put, and water purification is carried out using iron bacteria. The temperature in the septic tank must be kept at about 20℃∿30℃ in order to activate the activity of iron bacteria this time. The heater is installed in the purifying chamber in the reason. Heat exchange of entrance and exit is carried out by the heat exchanger in order to raise the efficiency. It tried to make energy balance figure of the whole system.
