There are several things to note from this article.
1. It seems that all swedes are environmental gurus, not. forget that appeal to authority.
2. incineration has it's own problems, although it has been improving a lot, as i understand it. that is, high temperature incineration causes less pollution than the old bonfire approach.
3. people still won't want one of these things near them.
4. toxic metals will still come pouring out the top from old batteries, etc, even if toxic organic compounds are broken down.
5. the article is written more from the point of 'lets stick this up the greenies' than, lets see if we can improve on what is now being done.
6. the costs of materials are not just the cost of purchasing them, it is also the cost of disposing of them, and garbage collection and landfill still costs money.