Many passenger trains (usually medium and long distance) have toilet facilities, often at the end of the carriage. Toilets are suitable for larger wheelchair users, and hence trains with such facilities may not have toilets in each carriage.
Video Passenger train toilet
Toilet hopper
The traditional method of removing human waste from a train is by depositing waste into a track or, more often, to the ground nearby using what is known as a toilet hopper . These range from a hole in the floor to a full-flush system (possibly with sterilization). The hole in the floor (also known as toilet drop chute toilet ) is still used in many parts of the world, especially on older rolling stock. The main disadvantage is that it can be considered raw or unhygienic and harmful to health and the environment - it pollutes the railway line and can convey serious health risks when the train passes or under navigable waterways. Passengers can be discouraged from flushing or using the toilet while the train is at the station or standing with a red signal. To enforce this restriction, the toilet can be automatically locked when the train pulls into the station or stops at a red signal. In the United States, railroad employees are required to lock closed toilets whenever a passenger train stands at a station or at another location designated by instruction in a time schedule. The toilet will be opened shortly after departure.
A properly designed fallout parachute will draw air like a chimney, draw air through the toilet door and down and out through the toilet, reducing the odor.
Toilet hopper is similar to ancient sea toilets where they release excreta directly into the environment, not treated.
Rule
United Kingdom
In October 2017, it was announced that the United Kingdom would abolish the hopper toilet on all scheduled passenger services, to protect railroad workers and reduce health risks.
Maps Passenger train toilet
Chemical retaining tank
Chemical retention tanks (retention tanks) are usually included in newer wagons and carriages in richer and populated areas of the world. One of the problems is that the tank must be emptied regularly, often at the terminal station or a prolonged termination. If the train needs to be used again quickly, the tanks may not be emptied. In this case, the toilet can be backed up, which can cause the toilet to close.
Vacuum toilets
The vacuum system used in the latest carriages is similar to those on planes: waste is pulled into a retaining tank with a high-pressure pump. The disadvantages are the same as the chemical retaining tanks, in addition they require a stable supply of electricity to work, and milking anything but water and human waste (eg toilet paper) can easily break down the pump.
Composting toilets
Some trains may have composting toilet tanks, which use bacterial action to break solid and liquid waste before releasing them to the trackbed by means of a chlorine sanitary tank.
Cultural reference
In United States, Dvo song? ÃÆ'¡k "Humoresque Number 7" sets the stage for a series of light humor verses about the toilet of the passenger train:
In The Good Soldier Svejk , writer Jaroslav Ha? Ek uses hypocatastasis to show the fruit of the hopper toilet, while conveying envy and humiliation of soldiers to their general officers:
At the station's restaurant, the generals began talking again about the toilet and saying how ugly it was when there were cactus everywhere on the track. Meanwhile he ate a beef steak and everyone imagined that he had a cactus in his mouth.
Gallery
References
Source of the article : Wikipedia
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