How does the urine and other garbage on the plane get out of the plane?

There is not only one toilet on the plane, but also toilet paper, disinfectant wipes, soap, perfume and other items in the toilet, which is both hygienic and convenient. But many people don't know that the products of our "Gong" on the plane have all arrived. Many people think that it is like a train to just open a small hole and line it outside.

Ouch, it feels disgusting to think about. After a child took a plane, he said to his mother, "I will never open my mouth again when I go to the street."

There are also people who have made such a "scientific explanation": the distance of the plane from the ground is 10,000 meters, and those "things" have long been weathered when they are in free fall.

This is actually a very unhygienic assumption. In fact, the sewage equipment on the aircraft consists of a bedpan, a sewage tank, a filter, an electric pump, a sewage canister, an inflatable pipe, and an exhaust pipe. After the defecation is defecated, the electric pump works, and the water in the sewage tank passes through the filter, the electric pump reaches the bedpan and washes the feces down.

After the feces enter the sewage tank, the water can be recycled again after chemical sterilization, deodorization, dyeing and separation. At the end of each flight, these items are taken to the ground for handling, rinsing and changing.

How to deal with the feces produced by going to the toilet on the plane, listen to what the flight attendant has to say.

Want to know? Do as I say.

Get a taxi.

Open the window. Unzip it.

Squirt your pee and all that kind of garbage.

Look closely. Get out.

Go home and write 500 words about how to look at it.

All the feces and urine on the plane are discharged into the storage box in the belly of the aircraft.

Aircraft toilets now use today's vacuum toilet drain systems for safety and environmental reasons. The excrement inside the aircraft toilet bowl is sent by the high-pressure air flow generated by the vacuum to the storage box in the belly of the aircraft, where it is treated by the addition of blue chemicals that have a deodorizing and decomposing effect.

The opening and closing valve of the storage tank is located on the outside of the fuselage, which ensures that the excrement can only be "thrown" in mid-air by the ground crew** after the aircraft has landed.

In other words, the aircraft has a special sewage treatment system to deal with the toilet problem: the dock of each toilet is connected to the cesspool on the aircraft by pipes. Small planes have only one cesspool, and large planes have two passages.

Garbage is discharged from the cesspool whenever it is pumped from the toilet into the cesspool and when sewage is treated on the ground. There are two ways to pump garbage from the toilet to the cesspool. One is on the ground, when the flight altitude exceeds a certain altitude, through the aircraft, due to the pressure difference between the inside and outside of the aircraft, the waste is pumped into the cesspool.

To be precise, the feces on the plane are "baled" and brought back to the ground for disposal. Objects falling from a high altitude have a lot of inertia and a lot of energy after a long period of acceleration, which should be said to be very dangerous. And, it's the last thing people want to fall from the sky.

Therefore, for the sake of safety and hygiene, the waste from the aircraft will be brought back to the ground.

After the excretion of the people on the plane, how to dispose of the excrement has gone through a long period of development, and it varies from period to period.

In the beginning, the planes were very rudimentary, and some of the pilots on the planes were exposed, and you still wanted to have a closed toilet? Either just endure it, or just drain it out, or pull it in a bucket and pour it out. So in those days, you could really be ...... from the skyXiang hit his head.

In the beginning, deodorants were used on airplanes, but they leaked easily, so they were not used for a long time. And the deodorants were all blue (pictured below), so during that time it was common for people to claim to see blue hail falling from the sky – this is what leaked out of the airplane toilet.

Later this structure was improved. As shown in the figure below, it is a small storage tank for excrement. We can see that this tank is connected to the outside world by an interface, simply put, because the high-altitude air is thin and the pressure is low, the high pressure in the cabin is used to prevent the gas produced by the excrement from returning to the cabin.

When the plane arrives at its destination, there will be a special ground crew to clean up all the poop in the storage tank, so sometimes we see someone under the plane holding a tube to connect to the plane [as shown in the picture below], don't get too close, because it may be rolling dirty outside.

This is an interesting question, and I'm going to explain it briefly.

I believe that students who have used the toilet on the plane have experienced that when the flush is pressed, the dirt in the toilet will be instantaneous."Suck it up”。Don't think that it was sucked out of the cabin by the low air pressure of the outside world and thrown into the air - although in the forties and fifties of the 20th century, the toilets on airplanes wereIn-lineOf: The toilets on early airplanes were just funnels connected to pipesDirect access to the exterior of the aircraft；During World War II, the hopper was replaced with a barrel, which was emptied by an unlucky crew member during the voyage.

There is also a theory that it was used by pilots during World War IIFecal bottlesThese bottles filled with excrement will be sent directly from the windows that are not pressurizedThrow it out。Living in that era, it was really possible to be attacked by "urine ice and rain".

Nowadays the siphon toilet in the household is:Relies on sumps to create a passive water absorption effectThis washes away the dirt。However, once the sink runs out of water, whether it's due to design or the bump of the aircraft causing the water to spill out, there will be no water to flush the toilet. So the aircraft is adoptedActive powered evacuation systemsWith an electric pump, clean water flows out every time you flush the toilet, while dirty water drains from the sink to the storage pool on the machine.

The modern toilet system is beginning to take shape, bidding farewell to the "in-line" stage.

But such a system requires an additional deodorizing liquid, anotec, which increases fuel consumption and reduces the number of passengers carried. Sometimes it also flows out of the fuselage, and the blue liquid mixes with feces to form a low-temperature ball that adheres to the surface of the fuselage. When the plane lands, these balls partially melt and break away from the plane and fall to the ground, forming "blue ice".

Now we use the toilet system on the aircraft adoptsPowerful vacuum suctionwithSmooth walls, simplyA small amount of waterYou can rinse the dirt off. The belly of the plane was fitted with oneLarge storage tanks, the system sucks the contents of the toilet into the belly of the machineChemical storage tanksAt the same time, the filtered chemicals are injected into the bedpan to flush the excrement down, similar to the inner wall of the toiletPTFE is a non-stick materialThis ensures that dirt can be easily washed out. The dirt remains in the storage tank throughout the flight, and after landing, the storage tank is pumped out and removed by the ground staff.

And the plug on the outside of the storage pool ensures that the pilot will not accidentally drop dirt to the ground during the flight.

So, now we don't have to worry about "** rain" in the air!

Airplanes and trains are full of people and one after another, and the excrement of passengers is naturally a lot, so some people will be curious, how to deal with the excrement on it? Is it really directly into the air or on the foundation? Or is there a manure tank on a plane or train?

I think it tastes, how to deal with it, let's take a look.

Aircraft are stored first and then arranged.

There are toilets on the plane, and the toilets on the ground are discharged through the kinetic energy of the water, but it is impossible for the plane to carry such heavy water to flush the toilet, and vacuum sewage is used.

This word sounds lofty, but in fact, it is not difficult to understand, that is, after you go to the toilet, press the button, a little bit of water will flow out of the toilet wall, and some of the water has been added with septic agent (with dilution and flushing effect), and at the same time, the small valve below will open, and there is a huge vacuum suction force that will suck the feces into the special "fecal tank" behind the plane, and wait for the plane to land, and the sewage unloader will clean it up.

But sometimes something goes wrong, and some of them leak out, freeze into urine pucks, and fall. So in the past, there was sometimes news of being hit by a urine ice hockey in foreign countries, commonly known as a huge spherical with a foul smell, an egg falling from dozens of floors can kill people, and the urine ice hockey is so high, it is normal to smash a garden.

When the plane is flying, because the air pressure at high altitude is relatively low, in order to ensure that the air pressure in the cabin is suitable for the human body, the aircraft needs to be sealed, so it is basically impossible to directly row it.

The old train was a piece of.

In the past, technology was not so advanced, and the feces on the train were basically discharged directly to the foundation, so from the toilet hole, you could see the rails rushing by and the sleepers on the rails.

But no one had ever seen a lump of things on the tracks, or smelled anything particularly bad. This is because when the train is running at high speed, the pressure generated by the rapid air flow around it is very high, and the dirt disintegrates instantly, and basically becomes extremely fine aerosol-like particles that drift into the air. If the train enters the station at a slower speed or does not move, the toilet will be locked and cannot be used, because the air pressure at this time is not large, and any excrement will fall directly on the tracks, and the picture is unbearable.

So in the past, you dropped your mobile phone, money, keys or something on the train, and it was difficult to get it back without spending a few hours without dispatching the staff, because it didn't fall on the train at all.

Trains are now like airplanes.

The train has been straight row is not very good, although it will not turn the foundation into a septic tank, but it will have a certain impact on the air, so it is not good for local residents and the staff on the tracks, so at home and abroad began to use the "set toilet" toilet, there is a squatting toilet on the train, but the principle of sewage is similar to that on the plane, there is a special dirt box under the car, and it is sucked away with a sewage suction device when it arrives at the destination.

At the same time, the small valve below will be opened, and there will be a huge vacuum suction force that will suck the feces into the special "fecal tank" behind the plane, and when the plane lands, the unloader will clean it up.

Vacuum toilets are now used, reducing the need for blue liquid, and the excrement is sent to a large storage tank in the belly of the plane, where a crew member drives it away when the plane lands.

The excrement on the plane is not discharged directly from the plane into the air as we think, it is installed in the hidden part of the airplane, and then put the plane to land and dispose of it intensively.

If it is the waste water in the washbasin, it will be discharged directly in the air, and if it is the garbage in the toilet, there will be a special vehicle to pull the waste away and dispose of it when the plane arrives.

Where did all the excrement on the plane end up, and was it really thrown in the air? It's too disgusting to read it.

If there are toilets on the plane, where does the poop go? The flight attendant accidentally said that she leaked her mouth!

Modern aircraft are all using vacuum toilets, the high-pressure air flow generated by the vacuum will send the passenger's excrement to the storage box in the belly of the aircraft, by adding deodorizing and decomposing chemicals for treatment, and finally stored in a special storage box, the switch valve of the storage box is located outside the fuselage, to ensure that the excrement can only be after the aircraft landing, by the ground staff ** to the treatment vehicle, and will not be "thrown" in mid-air.

Aircraft sewage is generally equipped with modern vacuum toilets, using strong suction and smooth walls, the belly of the aircraft is equipped with a large storage tank, like a large wet and dry vacuum cleaner, the vacuum cleaner system sucks the contents of the toilet into the chemical storage tank in the belly, and at the same time injects the filtered chemicals into the bedpan, and the non-stick material similar to PTFE on the inner wall of the toilet ensures that the dirt can be easily flushed out.

1. Urine treatment method on the aircraft: The excrement in the aircraft toilet is sent to the storage box in the belly of the aircraft by the high-pressure air flow generated by the vacuum, and is processed by adding blue chemicals with deodorization and decomposition effect, so as to ensure that the excrement can only be sent to the treatment vehicle by the ground staff after the aircraft lands.

2. For the sake of safety and environmental protection, the aircraft toilet now adopts the current vacuum toilet discharge system, and the wastewater from washing hands in the aircraft toilet and the rainwater collected from the boarding gate and other places are called gray water, which can be discharged through the drainage port of the fuselage at high altitude. Due to the high altitude, the unpolluted water will be broken down by the air currents without any effect.

The excrement of passengers on the plane will first enter the vacuum pump device and be treated without pollution after arriving at the station.

The excrement will enter the sewage box, and when the train arrives at the terminal station, the crew will use a special pipeline to connect the waste in the sewage box to the vacuum sewage suction pumping station for pollution-free treatment.

Most of today's airplanes will be carried to the ground for disposal, and the standard toilets of large civil aviation are very advanced, after passengers press the button after going to the toilet, just like a household toilet will flow out of water, but it is not the water that takes away the excrement, but the vacuum device under the toilet.

The vacuum device will pump the excrement into a special tank carried by the plane, and when it arrives, a special fecal collection truck will collect the feces.