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Joined 11 months ago
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Cake day: May 19th, 2024

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  • They are shredded to small pieces. A magnet separates all ferromagnetic parts, like steel casings. There can also be other separation methods such as flotation. Various non-ferromagnetic materials such as zinc and manganese can be dissolved in sulfuric acid. In order to speed things up, leaching is done at an elevated temperature. By tweaking the leaching parameters, it’s possible to dissolve Zn and Mn selectively.

    In the next stage, Mn and Zn are selectively precipitated as hydroxides using something like sodium hydroxide for example. There are other options too. You could also melt the batteries and separate the metals that way. If you use pyrometallurgy instead of hydrometallurgy, you’ll be using a lot more energy, and there can be CO2 emissions.



  • You could also look back. History has many examples of people governing themselves in various ways that differ from the systems used at the moment. Even within the spectrum of contemporary democracy, there are several options to choose from. People could just look up what kinds of democracies are used in other countries and how they differ from the one used (or not used) in your home country.

    I think we need a new radical philosopher who comes up with a new way of government, and starts promoting it actively. Actually, long ago, I heard a small political party do just that. They wanted to switch to the kind of direct democracy used in Switzerland, which sounded nice IMO. If people heard about someone proposing an alternative, they might at least consider it.

    The way I see it, people aren’t really exposed to different ideas of this kind. They see the problems, but not the answers. People aren’t really proposing new solutions that much, now are they?














  • About that family thing. If anyone ever tells you that “we are family” it means you can call them for help when you’re moving. If you have trouble configuring your router, call your new family for help. If you need to drill a hole in a concrete wall, but you do don’t have the right drill bits or other tools, call your new family.

    If your boss doesn’t want to come over to drill some holes in a concrete wall on a Saturday afternoon, they’re not really family, and they can’t expect you to act like family either.