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2 Responses

  1. Avril Sainsbury 17 November 2017 at 12:42 | | Reply

    Hi Can you tell me if PHA needs to be put in an industrial composter to biodegrade please? If left in the environment or landfill how long will it take to biodegrade then? Thank you.

  2. Phil 16 June 2019 at 19:50 | | Reply

    The decomposition testing has a big flaw, the article under test is always placed in perfect soil, and not in a medium of other manmade waste such as what actually happens in landfills. Does the testing ever include anaerobic conditions where there is no actual dirt present, just a medium of other materials such as newspaper & petrochemical plastics? I suspect a lot of these ‘biodegradable’ plastics will not actually breakdown in real-world conditions. They rely too much on microbes living in soils

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