We all know that when a current runs trough a wire or some other conductor, that conductor gets hot. So this is the same with Iron. Iron is a good conductor, rust as well, slack and stone not so much. To separate all the impurities and drive of the Oxygen from the rust you just jolt it with a lot of current and it will melt. This is a much cleaner process than using coal, although that source of energy was certainly the cheapest for the purpose.
Steel mills all over the world are increasingly being discovered to be a source of terrible pollution for the locals who have to live downstream of the chimneys. In Holland people around the TATA steel mills at IJmuiden have more diseases than elsewhere. Not a big surprise you can readily see the soot accummulated on the windows there. The above electric method is a way out of this, but then there is the question where to produce the electricity needed, because a lot is required. Until now moving iron ore and iron itself was the major cost factor determinining the price of iron. The fossil fuel industry subsidized this especially for the EU, which is after all a union of Coal and Steel, simply because all needed it to modernize (modernizing is a synonim of adapting to fossil fuel as a primary energy source). Modernizing Europe went without war because nobody hoarded the coal and steel (too much).
I think we can make TATA Steel clean if we build a solar power plant on the Markermeer. A floating one, that can also include homes and marinas and green patches for birds to land and rest on their trecks. Check out the
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