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DC Cell + Copper Wire + Ground Water produces bubbles from wire and water turns rust red gradually? What is happening?

I can see something is settling down...

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Groundwater contain besides other things $\ce{Fe^2+}$ a lot of organic material Lenntech, Natural Variations in the Composition of Groundwater. Oxygen released during electrolysis denatures organic proteins and the $\ce{Fe^2+}$ oxidize to $\ce{Fe^3+}$ that resulting to the reddish colorization.

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  • $\begingroup$ It also lookes like the copper wire is dissolving!! $\endgroup$ – Sibidharan Jul 1 '16 at 10:31

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