[dredmorbius]

"After trash is removed from the Interceptor Barricade using excavators, it is weighed on-site to determine the total catch quantity and passed to local partners and waste management authorities for processing."

Caption to the first photo in TFA.

[sidewndr46]

Sure, I saw that as well. But based on the data in this post, the local trash disposal method is to just dump it in the river.

[dredmorbius]

One would hope that specifically-contracted partners and authorities wouldn't be engaged in such activities, though Ocean Cleanup's site is ... somewhat vague on this point.

Might make for a useful pointed inquiry, as such gaps and loopholes are a stubbornly pervasive aspect of similar initiatives.