Question

how sewage is disposed off in aeroplane???

Answer 1

It depends on the plane. On larger aircraft like airliners (any plane that has room for a separate head or lavatory) the waste is stored for later disposal after landing. Apocryphal tales of crashing clumps of blue ice” are generally the result of a gradual leak from the port from which the waste is intended to be pumped; waste is not simply “dumped overboard.”

Small planes with only a cockpit generally have no provisions for handling solid waste; the pilot must simply exercise prudence in his selection of preflight meals. For liquid waste, there is sometimes a “relief tube.” This is essentially a small funnel attached to a hose, which in turn leads to an exhaust tube or port on the belly of the aircraft. Yes, it just falls from the sky, though such a small amount of liquid, ported into an airstream of 100 mph or more from thousands of feet of altitude, will generally evaporate completely before reaching the surface; you should be more concerned about pigeons.

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Answer 2

YOOOO

Under normal circumstances, the ground crew disposes of the sewage after the plane lands. Even if the pilot and flight attendants wanted to empty a tank midflight, they couldn't, as the valve is located on the outside of the plane, and can only be opened by the ground crew.



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