Water Treatment with Sodium Nitrite

Save

Water treatment includes the use chemicals including biocides, algaecides, coagulants, disinfectants, neutralizing agents, pH conditioners, and corrosion inhibitors. Sodium Nitrite is a corrosion inhibitor, but has uses beyond this in water treatment.

Heating and Cooling Systems

  • For any closed cooling or heating system where the heat exchange fluid is completely contained within the system, corrosion of pipes and metal surfaces can be a serious problem. For systems that have steel pipes, sodium nitrite is commonly used as an additive. It forms a protective film of iron oxide on the metal surfaces.

Odor Control for Wastewater

  • Sodium nitrite has other uses in water treatment. The Johnstown, Pennsylvania Wastewater Treatment Plant had a chronic hydrogen sulfide odor problem. It was found that the addition of a blend of sodium nitrite and sodium nitrate to the waste sludge has produced a tenfold decrease in hydrogen sulfide and made working conditions more comfortable.

Considerations

  • As with many chemicals, sodium nitrite is toxic in concentrated form. It is a strong oxidizing agent with a risk of fire or explosion in contact with other materials. It can be harmful if swallowed, inhaled, or absorbed through the skin, and can cause irritation to eyes, skin, and the respiratory tract. For this reason, care must be taken when handling the substance.

Related Searches

References

  • Photo Credit Clean water and water bubbles in blue image by Suto Norbert from Fotolia.com
Promoted By Zergnet

Comments

You May Also Like

Related Searches

Check It Out

22 DIY Ways to Update Your Home on a Small Budget

M
Is DIY in your DNA? Become part of our maker community.
Submit Your Work!