Nitrate/Nitrite Removal News

  • New Nitrate monitor lowers costs

    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 ...


    By OTT HydroMet

  • Xylem Analytics at the analytica in Munich

    According to the slogan we showed our broad range and new developments in our portfolio of measurement solutions to give the best insights into our application know-how. IDS Wireless Modules - cable-free and dependable measurement: The IDS wireless modules generated a lot of interest at analytica again. The small space miracles not only provide ...


    By WTW - a xylem brand

  • COD, NO3, NO2 in surface waters

    The optical spectral sensors of WTW provide the measurement of carbon parameters, nitrate and nitrite or suspended solids in lakes and rivers. The measurements with the maintenance-free sensors are taking place directly in the water body. Besides a maximum durability, the sensors convince by reliable results and the integrated ultrasonic cleaning. The sensors are operated with the IQ SENSOR NET. ...


    By WTW - a xylem brand

  • 50 Years of WTW at the IFAT

    The history of the IFAT began in 1966 with 147 exhibitors and 10,200 visitors. 50 years later, these numbers are quite a bit more impressive: As a world fair for environmental technoloqy, the IFAT welcomed 138,000 visitors from 170 countries between May 30 and June 3. WTW was an exhibitor fifty years ago and has been every year since. In our booth, together with our sister company MJK under the ...


    By WTW - a xylem brand

  • Successful Analytica 2016 for WTW

    On Friday, May 13, the Analytica 2016 closed its doors - 35,000 visitors spread across four show days show the significance of this trade show for the industry. WTW took part in this show with its sister companies SI Analytics, YSI, ebro, Bellingham + Stanley and OI Analytical in the large Xylem booth. The new wireless modules for the IDS sensors quickly attracted great interest. No cables, ...


    By WTW - a xylem brand

  • Spectrophotometer photoLab® 7000: Improvements for optical reagent-free measurement, more languages

    For the spectrophotometers photoLab® 7100 VIS and photoLab® 7600 UV-VIS as well as the former models a new Software-Update Version V2.28 / 2.30 / 2.23 is available for download. It contains many useful enhancements for an even better operation. For optical reagent-free measurement OptRF with photoLab® 7600 UV-VIS an optimized handling has been implemented: From ...


    By WTW - a xylem brand

  • Des Moines struggling with nitrates in water

    Two rivers that supply water to 500,000 people in the Des Moines area show nitrate levels spiking to levels that make it unsafe for some to drink, a concentration experts haven't before seen in the fall that likely stems from especially wet weather in recent months. The utility that supplies Des Moines and most of its suburbs had workers blending river water with other sources to lower the ...


    By Associated Press

  • Silver nanoparticles could pose risk to aquatic ecosystems

    Silver nanoparticles are toxic to common bacteria at concentrations found in many aquatic environments across the globe, new research has found. Bacteria often form a key part of ecosystems and these impacts may be felt by the entire system, the researchers warn. Silver nanoparticles are between one and a hundred nanometres (nm) in size and are now used for their antimicrobial action in a wide ...

  • NECi at NEMC 2014

    The Nitrate Elimination Company, Inc. (NECi), will be attending the National Environmental Monitoring Conference to be held at The Hyatt Regency in Washington, DC August 4th-8th.   NECi will be presenting nitrate analysis by nitrate reductase during the Environmental Measurement Symposiom Technology Showcase on Tuesday, August 5th from 5:00pm-7:30pm.  Visit the NECi table to learn more ...


    By NECi Superior Enzymes

  • Nitrate Reductase

    A proposed new ASTM International test method will present a means to perform nitrate analysis of water without the use of hazardous chemicals. WK27289, Test Methods for Nitrite-Nitrate in Water by Nitrate Reductase, is being developed by Subcommittee D19.05 on Inorganic Constituents in Water, part of ASTM International Committee ...


    By ASTM International

  • EPA and four Yakima Valley dairies reach agreement to reduce nitrate in local groundwater

    The U.S. Environmental Protection Agency has reached legal agreements with four Yakima Valley dairies that will help reduce nitrate in area groundwater and nearby drinking water wells. “This is good news, especially for those working locally to protect Yakima Valley groundwater,” said EPA Regional Administrator Dennis McLerran, in Seattle. “By working constructively with us in ...

  • APTwater to Demonstrate ARoNite™ Nitrate Removal Process for Cucamonga Valley Water District

    APTwater, Inc., an emerging leader in water treatment process technologies and services, has signed an agreement with the Cucamonga Valley Water District to demonstrate its innovative ARoNite™ nitrate removal technology. APTwater has been contracted to Design, Build, and Operate its new technology on-site, in order to revitalize one of the CVWD's long stranded assets in Rancho ...


    By APTwater LLC

  • Biggest UK based nitrate removal system

    Puritech and his U.K. based partner ACWA has started commissioning of the biggest nitrate removal project –KELDGATE– in the United Kingdom. 3x DN80 process valves have been developed, fabricated and tested for removing very efficentely nitrates from portable water.A waste stream of less than 0,5% is achieved on a total flow of ...


    By PuriTech Ltd

  • Seeps important in watershed nitrogen retention

    Globally, the mobilization of nitrogen has increased significantly due to human activities, such as industrial and agricultural development. As a result, over the past decades, eutrophication in coastal ecosystems has increased. Watershed nitrogen retention is an important mechanism to decrease nitrogen loading to downstream water bodies. Generally, in the northeastern U.S., the amount of ...

  • Nitrate concentrations of groundwater increasing in many areas of US

    Nitrate is the most common chemical contaminant in the world’s ground water, including in aquifers used for drinking-water supply. Nitrate in drinking water of the United States is regulated by the U.S. Environmental Protection Agency (USEPA) because of concerns related to infant health and possible cancer risks. Use of man-made synthetic fertilizers has steadily increased since World War II, ...

  • Oak Ridge National Laboratory study finds rivers play natural part in removing nitrogen

    Tiny organisms play a powerful role in removing nitrate, a form of nitrogen pollution caused by human activity, in streams, according to a study by a team led by Oak Ridge National Laboratory and published in Nature. In the first phase of the study, which involved 31 aquatic scientists from across the United States, researchers added small amounts of an uncommon non-radioactive isotope of ...

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