Great, I really applaud the effort, this will however NOT solve anything with regards to all the plastic already in the ocean. As I understand it this could be used for wastewater treatment, the problem is that almost none of the plastic in the ocean comes from treated waste water. In fact [90% of all plastic comes from just 10 river systems](https://www.weforum.org/agenda/2018/06/90-of-plastic-polluting-our-oceans-comes-from-just-10-rivers/), 8 of which is located in Asia. Also, fishing nets account for 46 percent of the great pacific garbage patch. That the bulk of all plastic in the ocean comes from just a few sources is also kind of good thing I suppose, since clean up efforts can be concentrated to just a few critical points to to have a major effect on how much plastic is getting into the ocean.