Energy-saving consumption-lowering shortcut nitrification-denitrification sequence-batch active sludge treatment process and device

The invention discloses an energy-saving consumption-lowering shortcut nitrification-denitrification sequence-batch active sludge treatment device which comprises an SBR reactor, a first dissolved oxygen automatic controller, a second dissolved oxygen automatic controller, a first stirrer, a second stirrer, an embedding carrier and an aeration device. An anoxic area and an aerobic area are arranged in the SBR reactor, the first dissolved oxygen automatic controller and the first stirrer are arranged in the anoxic area, the second dissolved oxygen automatic controller, the second stirrer, the embedding carrier and the aeration device are arranged in the aerobic area, the aeration device is mounted at the inner bottom of the aerobic area, sludge which is cultured and domesticated and is rich in nitrosomas is embedded in the embedding carrier, and the aeration device is an aeration sand strip. The embedding carrier rich in nitrosomas is added to promote accumulating of nitrite, shortcut nitrification-denitrifica