: How do you clean up a polluted river/large bodes of water?

Question

I just went through this big project with my wife, where we produced a podcast for Spokane, WA. We learnt of the big river cleanup in 1974. But I didn’t quite understand the process of how they did it. In general, how does this process work?

In: Planetary Science

Answer 1

Sounds like Spokane removed garbage and demolished abandoned/neglected structures. In other river cleanups you’ll focus on also eliminating sources of pollution such as drain pipes from industrial buildings. And if it’s a big cleanup they will even dig up contaminated sediments from within the river or its banks and add new clean sediment.