Caustic Soda in water purification
Water purification or water treatment means remove the harmful substance or chemical mixed from water for different uses, and provides purified water.
In the early stages of water purification, refineries use some chemicals.
Such as chlorine, iodine, bromine, silver, non-toxic organic acids, lime and mild alkali such as soda ash in water purification, neutralizing chemicals such as Caustic soda or sodium hydroxide and ion exchange.
What is Sodium hydroxide or Caustic Soda?
Sodium hydroxide (NaOH), also known as lye and caustic soda is an inorganic compound. It is a white solid and highly caustic metallic base and alkali salt, which is available in pellets, flakes, granules, and as prepared solutions at a number of different concentrations.
Base on caustic soda features, this chemical is useful in many different industries such as food, pulp and paper, textile and etc.
How Caustic soda in water purification work?
Unconfined water is an acidic environment and it has corrosive affection and this effect on pipes. Mostly pipes are made of iron and copper.
Acidic water cause solubility of lead and copper and iron in water, so at the end this disaster cause health and hygiene problem.
Because Sodium Caustic Soda (Sodium Hydroxide) is an alkaline substance and has a neutralizing affection, it is added to the well water to neutralize the acidic water.
Caustic Soda in water purification process should be added directly to well water.
By neutralizing acid water, it prevents the destruction of pipes and pumps during transportation to the refinery factory.
Adding Caustic Soda in water purification, to acidic water reduces the acids in water.
Consequently, Caustic Soda in water purification prevent the corrosion of the pipes and water transport system. .
In this reduction corrosion helps to neutralize hard constituents and prepares water for the next steps of purification.