Where do the contents of the toilet go after flushing the toilet on a plane?

Before the advent of modern vacuum toilet systems, airplane toilets required large amounts of blue disinfectants made from formalin and fragrances to help "digest" human debris. This toilet system is a chemical toilet; And today's aircraft usually use vacuum toilet systems. However, the "digestive system" of such toilets is not very good, and usually wets the pants.

A leaking mixture of blue disinfectant and human excrement can sometimes form solids. This solid, called "blue ice", can fall into the air and contaminate flowers and plants. In addition, the transportation of this disinfectant will consume valuable fuel, so many airlines will no longer use this toxic blue liquid to save manure.

A vacuum toilet does not require a blue liquid, its main magic weapon is a powerful suction and a smooth and silky inner surface of the toilet, and when you press the flush button, the valve under the toilet bowl opens. Below a certain height, a vacuum cleaner-like vacuum motor will run for 15 seconds, carefully vacuuming the toilet. However, if the aircraft has reached a certain altitude (4877 meters or more for the Airbus A320), the vacuum motor will be cut off and the aircraft will use another, smarter (economical) method to empty the toilet.

Because the air pressure at high altitude is very low and the air pressure inside the aircraft is relatively high, there is a big difference between the air pressure inside and outside the aircraft. Taking advantage of this natural air pressure difference, the digested final product in the toilet bowl can be quickly sucked away. In fact, the plane cannot take off again without emptying the stomach, because if the poop box is full, the level sensor inside the box will stop the vacuum system controller.

If the passengers can't go to the toilet, the scene is quite touching.

In the standard toilets of large commercial aircraft, small amounts of clean water flow out of the toilet walls when passengers press a button "conveniently", some of which are diluted and flushed with fecal chemicals. At the same time, a huge vacuum suction sucks the feces into the double-layered "manure tank" carried by the aircraft. Once it reaches the ground, the manure will be collected and disposed of by a dedicated manure storage vehicle.

Before the advent of modern vacuum toilet systems, airplane toilets needed large quantities of blue disinfectant made of formalin and fragrance to help "digest" human residue. This toilet system is a chemical toilet.

I think this thing must still be on the plane, because he couldn't have dropped it out of the air.

All of these things were washed off the plane by the water, but they would evaporate in mid-air.

Those things are broken down and then they become something and then they are volatilized.

There is a special container for sewage, which is not discharged outside the aircraft, which is not environmentally friendly.

One possibility is that there is a separate area for storing household waste, but it is being cleaned up to a certain extent.

After going to the toilet on the plane, the contents of his toilet are very large in the plane with a special garbage basket, so it fell into the special garbage box.

This is usually a stored thing that will be cleaned up once it hits the ground.