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Anything that could filter the plastic at scale would likely block fish migrations and have lots of unintended consequences (not to mention that the bulk of it
by jofer 8y ago
Anything that could filter the plastic at scale would likely block fish migrations and have lots of unintended consequences (not to mention that the bulk of it is probably transported during floods, which are going to be hard to filter).
It's easier and more effective to combat this on the ground than in the water. That's not to say that it's an easy problem to combat on the ground, either, just that it's damned hard to get plastic out of the rivers once it's in them.
- ericd 8y agoSomething like this might help: http://baltimorewaterfront.com/healthy-harbor/water-wheel/ http://baltimorewaterfront.com/healthy-harbor/water-wheel/ Not sure if it has any effect on migrations, though.
- icc97 8y agoSurely the same technology being used in the Ocean Cleanup Machine would work. That is, it's not a net. Also boats could drive around it, it just needs to be in the flow of the river.