Recovery processing system for dejection and sewage of train

Abstract

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.

Description

technical field [0001] The invention relates to a sewage recovery and treatment system, in particular to a train waste water recovery and treatment system. Background technique [0002] Train fecal sewage not only has high COD (chemical oxygen demand, chemical oxygen demand) content, but also high ammonia nitrogen content, and its pollutant concentration is much higher than that of ordinary fecal sewage. Such heavily polluted train excrement and sewage are discharged directly to the railway through pipes. This will not only seriously corrode the rails and shorten the service life of the rails, but also pollute the environment of the excrement discharge site. In addition, although the water consumption for a single flushing is not large, it is used once, and high-frequency flushing will also cause a huge waste of water resources. [0003] At present, with the enhancement of people's awareness of environmental protection, the treatment method of fecal sewage on trains has gr...

AI Technical Summary

Problems solved by technology

Although the vacuum suction type is more environmentally friendly, the maintenance of the system is complicated, and the cost is high, and there are often phenomena such as blockage and air leakage.

The latter two treatment methods need to be chemically disinfected and then discharged directly. The discharged products will inevitably cause secondary environmental pollution

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