nitrate ions News

  • ION EXCHANGE TREATMENT PLANT ENDS NITRATE, ARSENIC, AND URANIUM CONTAMINATION PROBLEM FOR CITY`S DRINKING WATER

    The Purolite Company has announced the availability of a third-party technical case history that describes how theinstallation of a multi-contaminant-removal, ion exchange treatment plant for McCook, NE’s drinking water was specified and installed to end a 15-year old nitrate contamination problem that had increased in scope over the years to also include uranium and arsenic. The two-page ...


    By Purolite Corporation

  • Basin Water receives contract for uranium and nitrate removal at US site

    Basin Water, Inc. (Rancho Cucamonga, CA) has received a contract from the East Valley Water District in San Bernardino County, California, to remove uranium and nitrates from the district’s Well No. 40. Basin Water will use its patented ion exchange technology to perform the work, which will allow the district to bring the out-of-service well back on line. The contract includes a 10-year services ...


  • New `Green` Chemistry Offers Solution to Looming Global Nitrate Crisis

    CEDAR HILL, TEXAS --- Small, minority-owned business in small Texas town is bound to become the “BAT” (best available technology) among nitrate removal technologies. Nitrates are on the increase world-over due to factors that include wastes from municipal, agricultural, and industrial processes. Health and environmental issues associated with nitrates are various and multiple, ranging from human ...


  • Water well owners should check water periodically for bacteria, nitrate

    Bacteria and nitrate are widespread in the environment, so every household water well owner should regularly test their water to make sure no health risk exists, the National Ground Water Association recommended today. While most bacteria found in water do not cause disease, disease-causing bacteria called pathogens can exist in well water given the right circumstances, NGWA said. Nitrate is not ...

  • The basics of IC explained: monograph «Practical Ion Chromatography»

    Over the last decades ion chromatography has become an established method in chemical analysis. «Practical Ion Chromatography» is an introduction to the method with a focus on its practical use in the laboratory. A brief presentation of the theoretical background and an overview of the functional principles are followed by the monograph’s main part, which presents practical ...


    By Metrohm AG

  • 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 ...

  • ASTM C799 - 12 Standard Test Methods for Chemical, Mass Spectrometric, Spectrochemical, Nuclear, and Radiochemical Analysis of Nuclear-Grade Uranyl Nitrate Solutions

    Uranyl nitrate solution is used as a feed material for conversion to the hexafluoride as well as for direct conversion to the oxide. In order to be suitable for this purpose, the material must meet certain criteria for uranium content, isotopic composition, acidity, radioactivity, and impurity content. These methods are designed to show whether a given material meets the specifications for these ...


    By ASTM International

  • 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

  • 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 ...

  • PuriTech dominates this year’s IChemE Water Awards

    Both prizes awarded at this year’s prestigious IChemE (Institution of Chemical Engineers) Water Awards (sponsored by the IChemE Water Subject Group) have recognised PuriTech’s revolutionary development and improvement of the ion exchange process. PuriTech, a leading international separations technology company, won an award specifically fortheir innovative IONEX technology, which has a variety of ...


    By PuriTech Ltd

  • AdEdge Adds Advanced Biological Treatment Technology to Core Product Offerings

    AdEdge Water Technologies announced the addition of biottta advanced biological treatment to their core product offerings. Each biottta system is a pre-engineered, turnkey treatment solution designed to remove nitrate, perchlorate, hexavalent chromium, VOCs, and other contaminants from municipal drinking water supplies. biottta is a low-energy treatment process that uses naturally-occurring ...

  • Determination of fluoride species in etching baths used in the manufacturing process of solar cells

    Metrohm presents a method for the straightforward ion chromatographic determination of HF, HNO3, short-chain organic acids and H2SiF6 in acidic texturing baths used in the manufacturing process of solar cells. Standard ions such as fluoride, nitrate, acetate and sulfate are determined via suppressed conductivity detection while dissolved silicate is spectrophotometrically detected in the same run ...


    By Metrohm AG

  • AdEdge India Is Formed in Joint Venture Between AdEdge Water Technologies and InNow, LLC

    AdEdge Water Technologies (AdEdge) and InNow India Pvt. Ltd. (InNow) today announced a joint venture to provide innovative water treatment solutions for municipalities in India for the removal of arsenic, nitrate, radionuclides, and fluoride among other contaminants. The joint venture will operate under the name AdEdge India and will be based in Gurgaon, India. AdEdge India will ...

  • Envirogen Starts Up First-of-its-Kind Hexavalent Chromium Treatment System for Drinking Water in California

    EEnvirogen Technologies, Inc. (Envirogen) announced the successful start-up of a high-efficiency ion exchange system for the treatment of hexavalent chromium in drinking water supplies for California Water Service (Cal Water) in Salinas, CA. This is the first permitted full-scale system to go online for treating hexavalent chromium since California’s Division of Drinking Water (DDW) ...


    By Envirogen Technologies Inc.

  • Silver nanoparticles in sewage sludge harmful to soil microorganisms

    Recent research has found that silver nanoparticles in sewage sludge, which is used on agricultural land as a fertiliser, can be toxic to soil microorganisms. The researchers calculated that a maximum of 30mg of silver nanoparticles per kilogram of sludge can be applied to land before harm occurs, based on typical application rates in Germany of five tons per hectare of farmland every three ...

  • New DI Water Business Unit in New England

    Burlington, MA -- Applied Water Solutions, Inc. announced its new Deionized Water business unit. The new DI Water unit is chartered with differentiating AWS’ current service and providing integral solution to companies with their production needs for DI Water. Initially, AWS offerings will include: Mixed-Bed De-ionizers, Cation Exchange, Anion Exchange and Carbon Exchange Tanks. These ...

  • Arizona city set for new groundwater treatment plant

    CH2M HILL, a global, full-service, engineering, construction and operations firm, announced it has received a contract from the City of Glendale, Ariz. to provide project management, engineering design, permitting and construction services for the Zone 4 Groundwater Treatment Plant project. “The project will provide the City with not only added supply to meet growth but also operational ...


    By CH2M Hill Companies, Ltd.

  • ASTM C968 - 12 Standard Test Methods for Analysis of Sintered Gadolinium Oxide-Uranium Dioxide Pellets

    The test methods in this method are designed to show whether a given material is in accordance with Specification C922. 1. Scope 1.1 These test methods cover procedures for the analysis of sintered gadolinium oxide-uranium dioxide pellets to determine compliance with specifications. 1.2 The analytical procedures appear in the following order ...


    By ASTM International

  • Fuel cells for powering homes

    One of the applications that fuel cells may have is the supplying of homes with electrical power. When considering applications of this type that call for greater power, a research group in the UPV/EHU’s department of Mineralogy and Petrology has studied the use of one type of material, perovskites, for the design of these cells. Fuel cells are similar to batteries, but they differ from ...

  • Aerobic cometabolism of tetrachloroethylene (PCE)

    Tetrachloroethylene (PCE) is a problem contaminant because of its widespread use, potential toxicity and persistence in the environment. Like other chlorinated solvents, remediation of PCE in soil and ground water has proven to be very difficult. While there has been has been widespread success under anaerobic conditions, the application of bioremediation under aerobic conditions has not been as ...


    By CL Solutions, LLC

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