Nitrate/Nitrite Removal News

  • Bringing life back to dead zones

    Dead zones — those regions that can be found in the Great Lakes, Chesapeake Bay, and even the Gulf of Mexico — are a serious problem for U.S. waterways. These hypoxic zones, the result of excess nitrogen and phosphorus run off, can lead to algae blooms that can stifle aquatic life. Regulators are doing their part to reduce these dead zones by mandating the decrease of nutrient runoff ...

  • Nitrate and the U.S. EPA

    The U.S. EPA initiated the Federal Water Pollution Control Act  in 1948 to regulate contaminants in surface waters - which later expanded in 1972 to form the Clean Water Act (CWA). Nitrate is one of the primary contaminants regulated by the U.S. EPA under the CWA as well as the Safe Drinking Water Act (SDWA). The maximum contaminant level set by the ...


    By NECi Superior Enzymes

  • AdEdge Water Technologies Awarded biotttaTM Nitrate Removal Project for the West Valley Water District, California

    AdEdge Water Technologies today announced it has been awarded and is implementing a biotttaTM (biologically tailored two-stage treatment approach) nitrate, perchlorate, and trichloroethylene removal project for the West Valley Water District, California. The West Valley Water District serves several communities in Riverside County, California. Historic levels of ...

  • 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

  • Sulzer Sharpens the Offering of Agitators to the Wastewater Industry with Scaba TreatX

    Scaba TreatX are standardized Scaba agitators, available with short lead times and at competitive prices. The agitators are built of Scaba modules with excellent hydraulics and low energy usage. The agitators have a robust stainless steel design. The Scaba TreatX concept is developed especially for the municipal and industrial water and wastewater industry for the applications flash mixing, ...


    By Sulzer

  • 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

  • Photometry Compendium - Episode 6 is live!

    Besides the methods that use a chemical reaction to create a concentration dependant colour change, which can then be measured, there are many substances that can be measured without a colour reaction provided they absorb light within the wave length range of the photometer. To date, used exclusively in water treatment plants, a technique is available which is able to detect several parameters ...


    By WTW - a xylem brand

  • Photometry Compendium – Episode 5 is live!

    The 5th video on www.photometry-compendium.com  shows the use of the photometer in environmental analysis. Environmental monitoring is of growing importance in view of the European Water Framework Directive. A regular analysis gives a fast and reliable overview of the chemical, biological and environmental condition of your ...


    By WTW - a xylem brand

  • Photometry Compendium – Episode 4 is live!

    A key advantage of photometry is the availability of portable instruments, making the technique suitable for fast analysis in the field. The 4th video on www.photometry-compendium.com shows the use of the photometer in environmental analysis. Environmental monitoring is of growing importance in view of the European Water Framework Directive. A ...


    By WTW - a xylem brand

  • Capillary electrophoresis method according to EPA 6500 and ASTM D6508-10

    Lumex Instruments introduces a capillary electrophoresis method for determination of inorganic anions; fluoride, bromide, chloride, nitrite, nitrate, ortho-phosphate, and sulfate in drinking water, wastewater and ground water according to EPA 6500 and ASTM D6508-10 test methods. This test method is applicable for ...


    By Lumex Instruments Group

  • 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 ...

  • Webinar - NECi Presents: Enzymatic Nitrate Quantitation Using Discrete Analyzer Technology

    NECi will be presenting nitrate analysis by nitrate reductase during a webinar November 5th from 12:00pm-1:00pm.  Vice President of NECi, Ellen R. Campbell, will be featured in a presentation during the webinar on Analytical Grade Enzymes, specifically Nitrate ...


    By NECi Superior Enzymes

  • Household well owners can take free online lesson about nitrate in drinking water

    A free, short online lesson about nitrate in drinking water — and what to do about it — is available to household water well owners on the National Ground Water Association’s website, www.WellOwner.org. The lesson was developed with support from the U.S. Environmental Protection Agency. ...

  • 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

  • Simply Ingenious: Nitrate Measurement Without Wear Parts with the New UV 700 IQ NOx

    With this new IQ SENSOR NET probe, Nitrate can be detected cost-efficiently and completely without any wear parts! The integrated ultrasonic cleaning system of the sensor does entirely work without any moving parts. Thanks to the sealed housing the risk of penetrating water does not even occur. Due to the optical measurement method of the sensor expensive and time-consuming sample preparation as ...


    By WTW - a xylem brand

  • Enzyme Based Nitrate Determination Method for Wastewater Reaches First Step in EPA Approval

    The U.S. Environmental Protection Agency (EPA) has determined that The Nitrate Elimination Company, Inc. (NECi) Method N07-0003 “Method for Nitrate Reductase Nitrate-Nitrogen Analysis” meets all requirements for measurement of nitrate and combined nitrate-nitrite in wastewater. Enzyme-based nitrate analysis will be recommended for inclusion in the list of 40 CFR Part 136 in ...


    By NECi Superior Enzymes

  • Measuring the impacts of the Nitrates Directive on nitrogen emissions

    The EU’s Nitrates Directive has led to significant decreases in nitrogen pollution in Europe, a new study suggests. Modelled scenarios with and without implementation of the Directive showed that it had resulted in a 16% reduction of nitrate leaching by 2008. These improvements could be further increased as implementation becomes stricter, the researchers conclude. More nitrogen is applied ...

  • 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

  • Water pollution is decreasing but a lot remains to be done

    Water pollution caused by nitrates has decreased in Europe over the past two decades, but agricultural pressures are still putting water resources under strain. The latest Report on the implementation of the Nitrates Directive reveals that nitrates concentrations are slightly decreasing in both surface and groundwater and sustainable ...


    By Europa Press Room

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