The invention relates to the technical field of
sewage treatment, and discloses a microbial
electricity generation and
energy storage integrated buried
sewage treatment device which comprises an
oil separation tank, a
septic tank, an anaerobic and aerobic zone and a
settling zone which are arranged in sequence, the anaerobic and aerobic zone comprises a plurality of reactors which are sequentially communicated,
sewage sequentially passes through an
anode chamber and a
cathode chamber of each reactor, the
cathode chamber of the reactor located at the upstream is communicated with the
anode chamber of the reactor located at the downstream, an
anode plate attached with microorganisms is arranged in the anode chamber, and a
cathode plate attached with microorganisms is arranged in the cathode chamber; and the anode plate and the cathode plate are electrically connected with the current collection and
energy storage module. Through the current formed by the
potential difference between the anode plate and the cathode plate, a part of electrons can be directly led out to the current collection and
energy storage module for generating
electricity, so that more substrates are used for generating energy, the residual
sludge amount and the yield are reduced, the
environmental protection principle of reduction is met, the environmental friendliness of the
sewage treatment device is improved, and the
sewage treatment efficiency is improved. The device is suitable for being used close to residential areas.