Friday, October 24, 2008

Membrane filtration halogenated by-product control

A common disinfectant used for water treatment is a 15% solution of Sodium Hypochlorite NaClO (Chlorination). It is made by reacting Sodium Hydroxide with Chlorine

2NaOH + Cl2 = NaCl + NaClO + H2O

Chlorination of drinking water can oxidize organic contaminants, producing trihalomethanes (also called haloforms), which are carcinogenic.
Source: Wikipedia

One way to solve this problem is to use membrane filtration to filter off the precursors of halogenated products.

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