Nitrate Monitoring Articles

New generation of UV Nitrate Sensors Nutrient monitoring is becoming more important as time goes on – as human activity increases the natural amount of nitrate in water, plants and organisms are more and more negatively affected. ...

Dec. 11, 2018

By OTT HydroMet

Responding to global demand for improved monitoring of nitrate in freshwater, OTT HydroMet has launched a new optical nitrate sensor, the OTT ecoN. “This is fantastic news for scientists, catchment managers, water companies, regulators and environmental consultants,” says Ronan O'Maitiu, Global Product Manager for the OTT ecoN. “In the past, customers have been caught between ...

Dec. 4, 2018

By OTT HydroMet

The effects of acidified-nitrite stress on the growth initiation and intracellular pH (pHi) of individual cells of Debaryomyces hansenii and Candida zeylanoides were investigated. Our results show that 200 µg/ml of nitrite caused pronounced growth inhibition and intracellular acidification of D. hansenii at an external pH (pHex) value of 4.5 but ...

Jul. 31, 2008

By American Society for Microbiology

The CLD 88 enables to detect down to pMol level (nitrite / nitrate levels in drinking water).The new sample tube we are using (type 1), is optimized for this application. The internal flow restriction ismade from stainless steel and it can be cleaned in an ultrasonic cleaner. The sample flow of 110 ml/minminimizes the effect of the helium bubbles in the liquid sampler, which results in very low ...

Feb. 24, 2008

By Eco Physics Inc.

 ABSTRACT Many wastewater facilities use a nitrifying biological process to eliminate or reduce ammonia concentrations which are toxic to fauna in their receiving water. One byproduct of this process is nitrate. Nitrate is generally non-toxic to fauna in receiving streams at levels produced by a nitrification process. However, chronic exposures of 10mg/L NO3-N, or greater, may produce ...

Oct. 12, 2007

By Water Environment Federation (WEF)

Every organism has different potential to accumulate NO3- from the environment. Nitrate reduction processes are perhaps most significant in maintaining water quality by alteration of nitrate to nitrite. A comparative study between the nitrate reductase NR activity of green and blue green algae in presence of heavy metals is being conducted to present a situation where nitrate reductase process ...

Sep. 30, 2005

By Center for Environment and Energy Research & Studies (CEERS)