Nitrate as a Water Contaminant

Nitrates are classified as inorganic compounds that are usually present in surface water as well as in groundwaters depending on the location. Nitrates can originate from both the sources, the natural as well as the man-made. Nitrate is especially formed by fertilizer residues and the decomposition of waste that enters the water supplies directly or indirectly through the soil. Nitrate removal from drinking water can be fulfilled via anion exchange method, using WETS conventional ion exchange systems. Sometimes you can also use the nanofiltration (NF) method for Nitrate removal from water, as it employs a low-pressure spiral membrane, to soften the water and make it clean as desired.

Nitrate removal from water can be attained via either the Physical-Chemical method or the Biological method.

Physical-chemical method

You can use Electrodialysis, Reverse osmosis, and Ion exchange methods for the Nitrate water treatment processes that can easily separate nitrate from the contaminated water and make it clean for drinking or cooking purposes.

Neither Reverse osmosis nor Electrodialysis are considered NO3-Ion-specific, hence, they can only be used when you want to desalinate the water at the same time of the cleaning process.

Nitrate removal from water can be done by using Ion exchange method and the resins used for producing clean drinking water are also approved in several countries.

Nitrate Content in Drinking Water

Nitrate occurs naturally in the surface water as well as in the groundwater at a certain level that doesn’t cause any health problem in humans. There are many sources that play a vital role in determining the levels of nitrate in water, which often depends on the improper construction of well, its location, overuse of chemicals and fertilizers in nearby areas, or any improper disposal of human waste done in that area. Wells are said to be more exposed to contamination after being affected by floods, or they might have been dug, or stay submerged by the flood water for a long time.

Nitrate Removal from Drinking Water

Nitrate removal from drinking water can successfully be done using the treatment methods such as Distillation, Ion exchange, and Reverse osmosis. You can contact any health department in your area to know the recommended methods of treatment.

It’s a myth that boiling or heating the water will remove the nitrate content from it, No it won’t, it doesn’t work like that. Because when you heat or boil the water, some of it will evaporate but not the nitrate compounds. They will stay inside the water and it may increase the nitrate concentration levels in water. There are many mechanical filters or chemical disinfectants available in the market such as chlorination, but it DOES NOT remove the nitrate content from the water.

Contact WETS Engineers for Nitrate Water Treatment