Residential Nitrate Reduction Systems

Nitrate Reduction Systems From Krudico

Krudico started research in the mid 1960's on Nitrates and the problems they created and introduced Nitrate Reduction Systems during the 70's. In the 1980's, Nitrate Selective Resins were introduced increasing the efficiency of the technology. Present installations average over a 92% reduction of both Nitrates and Nitrites from a water supply.

When nitrate bearing water is passed through the media bed, the nitrates are exchanged for chlorides attached to the resin. The resin now holds the nitrates as the chlorides are released and enter the water supply. After a pre-set gallonage of water has passed through the media, the system is regenerated with sodium chloride (salt) or potassium chloride. Here, the nitrates are flushed to waste and replaced on the resin by the new chloride ions. This process can be transferred back and forth thousands of times providing low cost quality water for years. Note:there is no water softening effect from a Nitrate Reduction System.

Types of Nitrate Reduction Systems From Krudico Single Tank Models for Homes and Small Businesses Designed for water supplies where consumption of daily water usage is not highly erratic and water is not consumed during certain hours of the day. This would include households and businesses open only during daily working hours. These models can be set to regenerate during hours of non-use, which is normally during the night. These models are sized so that there will be several days water consumption before a regeneration is needed. This is to provide an ample reserve in the event of unexpected water usage or power failure. Dual Tank Models Where 24 Hour Protection is Needed For livestock operation, motels, 24 hour restaurants, community wells, camping areas and other such establishments, Krudico has alternating units. One tank is always in service while the other is in regeneration/standby. This alternation of tanks insures continuous nitrate reduced water for all of the people being served. These systems are also metered so that regeneration is always on a pre-set basis for precise and economical treatment of your water.

 

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Nitrates (NO3)--Why do they cause a problem?

Nitrates, when ingested by an infant not yet on solid food, are converted to Nitrites (NO2) in the stomach and small intestine. As the nitrites pass through the small intestine wall and enter the blood stream the hemoglobin in the blood picks them up. The hemoglobin has a stronger attraction for the nitrites than for oxygen and if enough nitrate contaminated water is consumed the baby begins to turn "blue" from oxygen starvation. This is where the term Cyanosis or "Blue Baby" syndrome comes from. Although uncommon, continued consumption of the water can result in death. However, if the infant is taken off the nitrate water supply, normal color will return and other symptoms will vanish within 48 hours.

Nitrates in water normally do not affect older infants, children and adults. However, it is advised that pregnant women do not consume nitrate water as the nitrates may pass through the blood stream to the fetus.

The US Environmental Protection Agency (USEPA) has set a Maximum Contaminate Limit (MCL) for nitrates at 10 mg/l when tested as Nitrogen. It is mandatory that public water supplies and or public businesses provide drinking water under this limit. It is also strongly suggested that private homes also use this MCL as their guidelines.

Nitrates are the most common contaminate found in water, not only in the US but also in many other countries that are heavy in agriculture. It is estimated that over one-half million homes in the US have drinking water supplies that exceed the level set by the USEPA. Private and commercial wells that are in areas exposed to nitrate contamination should have their wells tested at least semi-annually with on test being performed during the heavy rain season and the other during a dry period.

Nitrates have long been suspected of creating a variety of problems for livestock and poultry production. Swine appear to be the most susceptible to nitrate contamination. High levels of nitrates appear to cause poor conception ratios, abnormally high abortion rates, increases in mortality at farrowing along with scours and poor weight gain.

Cattle have conception and abortion problems along with higher cases of both foot rot and pink eye. Cattle being fed with high nitrate water will often have shaggy hides rather than a smooth shiny appearance.

Industrial Nitrate Systems

Municipal Nitrate System (Mapleton, Iowa System)