Bugs? I don't know of any. Bacteria? It seems to come up again every few years.
this post was submitted on 05 Nov 2023
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Cool!
Ideonella sakaiensis would be the name of the bacteria.
What would be ideal IMO is a bug with a gut bacteria exclusive to that species alone that could eat plastics and digest them fully so microplastics aren't an issue. Likely, a species for each type of problem plastic. A natural analogue would be termites, which can only digest wood because of such a relationship.
It would have to be an artificially engineered relationship, and an insect that's not particularly proliferate. Preferably with a narrow set of habitat tolerances. That way they could be farmed, but be unlikely to get into the environment and become a nuisance by eating plastics we don't want them to.
Like black soldier flies?
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Black soldier flies are prolific and when proper conditions to reproduce are met, the females do not wander far from the place they are born and because of this are already used in organic waste disposal.
Using a complex organism to treate waste, even if only plastic, requires specialized infrastructure, designed to contain any event possible to pose a threat to the environment; this is not something we want or can do at home. Specialized infrastructure would make possible ideal conditions for the flies.
Black soldier flies also have the advantage that adults do not live for very long, do not feed, do not pose threat to human beings and the larvas die quickly if no food is available.
These flies also are vulnerable to cold and extreme heat conditions.