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Cleaning plastic of Smell

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Andrew munro

Cleaning plastic of Smell

01/12/2017 at 10:46

Hey all

Currently new so just a query which came to mind reading in one of the forum questions which came up got me pondering.

The person got contaminated plastic from a local recycling firm and the smell was very aggressive.

Wouldn’t the smell be burnt off when the plastic goes through the heating process? It may give off a lot of fumes while doing so but by using a ventilation unit you could extract this into open air so to not affect ones lungs. On the other hand there would be an issue with the fumes affecting the environments air, so could someone give me a heads up on the idea for future knowledge?

Also just one other thought, if you had a ventilation unit which went through a water tank, so as to bubble through water, wouldn’t this cut back on the contamination to the air and leave all the rubbish in the water. Once the water is spent one could allow evaporation to occur leaving behind the soot?

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hero
02/12/2017 at 03:15

Question: Wouldn’t the smell be burnt off when the plastic goes through the heating process? It may give off a lot of fumes while doing so but by using a ventilation unit you could extract this into open air so to not affect ones lungs.

Answer: ABS and PVC plastic (among others) are known to produce irritant gases when heated. The smell will never burn off during heating, and it should not. The plastic should only be heated for the amount of time required to melt it and as soon as its melted then it should be shaped and cooled off. If your intention is to keep heating the plastic until it stops releasing fumes, you will end up with a chunk of burnt plastic.

On regards of capturing the fumes, you need to have fume extractors with an appropriate chemical filter. Water might hold a few heavy particles but most of the gases will just exit the water through the bubbles.

More info: https://www.sentryair.com/plastic-polymers-fumes-control-hazards.htm

new
05/12/2017 at 12:07

Thank You

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