I propose using floropolymer bladders with a large alkaline salt solution to draw micro plastic into the bladder. We toss them in the ocean and allow the plastic to diffuse through the bladder wall becoming entrapped as lignin structures. Once they are concentrated enough to harvest we pull out the bladder and treat the contents.

I think it is the only way to leach out the plastic. Logistically it’s like using tampons to clean a area the size of Texas (pacific garbage patch). I don’t see another way to treat the mess we have already made.

Step one is treating the plastic we have before it gets to the sea