Рет қаралды 154,182
I'm going to show you how what they sell as a water electrolyzer works. An electrical device with an iron electrode and an aluminum electrode. When immersed in purified water, it does not change color. On the other hand, with tap water it is colored brown and green. They attribute it to the presence of heavy metals, but it is really due to the oxidation of the iron in the anode, which releases Fe2+ and Fe3+ ions, which combine with the hydroxide groups (-OH) from the cathode and give rise to iron III hydroxide. and iron II hydroxide, which precipitate giving the aforementioned respective colors.
Here are the links you provided translated into English:
1. [Electrolysis - Wikipedia](en.wikipedia.o... Electrolysis is a chemical process that uses an electric current to drive non-spontaneous chemical reactions. It involves the decomposition of electrolytes (ionic compounds) into their constituent elements or ions.
2. [Water treatment - Wikipedia](en.wikipedia.o... Water treatment is the process of improving the quality of water to make it suitable for various purposes, including drinking, irrigation, industrial processes, and environmental applications. It involves a combination of physical, chemical, and biological methods to remove contaminants and impurities from water.
3. [Heavy metal - Wikipedia](en.wikipedia.o... Heavy metals are metallic elements that have a high atomic weight and density. They are toxic to living organisms and can cause harmful effects on human health and the environment. Heavy metals are often present in industrial wastewater and can contaminate water sources if not properly treated.
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