There is a button in the toilet. As soon as the button is pressed, the small hole will produce huge suction, and the feces will be directly sucked away by vacuum. In general, as long as it is not a big solid, it can be handled.
Ordinary trains are discharged along the track and naturally purified; Don't open the toilet when you arrive in the city to prevent the city from polluting. Except for the EMU, the excrement is collected by the excrement collector, and centralized treatment is carried out by the special sewage suction vehicle after arriving at the station.
The origin of train vacuum toilet;
In the past, the green leather trains in China were basically straight toilets, and the excrement directly fell on the track by gravity. This practice is not only unsightly, but also very unsanitary. With the speed increase of the train, the sewage directly discharged from the toilet will splash, which makes feces everywhere under the carriage, which brings difficulties to vehicle maintenance.
In order to prevent the pollution of train defecation to the track environment, countries all over the world are actively developing car toilets to replace the traditional direct-row toilets.
Compared with the traditional gravity toilet, vacuum toilet has the characteristics of saving water and deodorizing, so it has outstanding economic and social benefits. For example, the EMUs and high-speed trains that we often ride now are all vacuum toilet systems imported from foreign technologies, which have received good response.