To answer the question about recycling, nothing can be done with it from a recycling standpoint.
Also, I wouldn't trust a repaired carbon fiber bike, as someone who has fabricated some parts, played around with failures on scrap pieces, etc.. Maybe someone could add enough layers of new fabric to make a "patch", but it won't be chemically bonded to the old frame. Once epoxy is cured, new epoxy doesn't bond with it... the best you can do is a physical bond, using texture (like sanding). If the patch is strong enough by itself... I guess it's possible to make it safe, but it's still a weak point, and I sure as hell wouldn't ride a repaired frame.