Norway and the Netherlands are successfully trialling waste-to-energy with carbon capture. If some waste cannot be economically recycled, why not use it as fuel for electricity generation?

We're still going to need some amount of fossil fuels for the foreseeable future. A yoghurt pot or a pizza box might not be recyclable using current processes, but it's perfectly good fuel.

https://www.sciencedirect.com/science/article/pii/S187661021... http://www.vivis.de/phocadownload/Download/2017_eaa/2017_EaA...