The invention relates to a
recovery processing system for dejection and
sewage of a
train, which comprises an inner box and an outer box; an insulating layer and a heat tracing device are arranged between the inner box and the outer box; a plurality of dummy plates are arranged in the inner box, and divide the inner box into a
solid-liquid separation chamber, a first
anaerobic chamber, a second
anaerobic chamber, a first aerobic chamber, a second aerobic chamber and a third aerobic chamber; one end of each dummy plate is fully distributed with holes; according to the
sort order of the dummy plates, the holes are staggered from top to bottom on the dummy plates, so that a zigzag return circuit is formed on a liquid flow path; the
solid-liquid separation chamber is provided with a
discharge pipe and a
breather pipe; the first
anaerobic chamber and the second anaerobic chamber are provided with a plurality of biologic fillers, and the top of the first anaerobic chamber is provided with a strain injecting opening; the first aerobic chamber, the second aerobic chamber and the third aerobic chamber are provided with aerator pipes, and each aerator
pipe is provided with a plurality of ostioles and is connected with an
air pump; a heater and a temperature sensor are arranged in the first aerobic chamber, the third aerobic chamber is provided with a
liquid level sensor and a plurality of membrane components, one end of each membrane component is connected with a water outlet pipe in parallel, and the other end is connected with a supporting tube in parallel; the water outlet pipe is connected with a self-priming pump and a
recoil pump in parallel, the self-priming pump and the
recoil pump are connected with a middle water box in the
train; and the heater, the temperature sensor, the
liquid level sensor, the self-priming pump, the
recoil pump and the
air pump are electrically connected with a CPU. The invention can be widely applied in different trains.