Anodes & Cathodes

Anodes and cathodes are forms of electrochemical process in water and wastewater treatment to remove traces of organic pollutants or dangerous compounds so that they become clean.

How does it work?
Water is a covalent molecule held together by shared electrons in the covalent chemical bonds. The water molecule in the hydrogen and oxygen is held together to process the separation also called electrolysis. During electrolysis, the molecule is reduced at the cathode to hydrogen gas and oxidized at the anode to oxygen gas. Hydrogen is attracted to the cathode because it is an anion so it is negative. Oxygen is attracted to anode so it is positive. In other terms, Oxygen forms at anode (the positive electrode) and Hydrogen forms at cathode (the negative electrode).

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