Featured Articles

  1. How To Destroy Pathogens And Micropollutants With Ozone
    10/26/2017

    Utilities continually face new challenges. Where treatment facilities were once expected to simply disinfect the water, they must now avoid creating disinfection byproducts during the process. New and more stringent regulations require removal of additional micropollutants and emerging contaminants. Finding the best technology to accomplish these goals can be difficult.

  2. How To Weigh Your Options For Arsenic Removal
    8/23/2017

    Arsenic is among the most well-known, and most feared, drinking water contaminants. Finding its way into water supplies through natural and man-made avenues, the carcinogen poses particular obstacles to those operations responsible for treating it. To get a grasp on those obstacles and the technologies that can best overcome them, Water Online spoke with De Nora Water Technologies.

  3. You'll Know Them By Their Brands: De Nora Products Have Been Water Market Leaders For Decades
    8/2/2017

    Although you may be seeing and hearing more about De Nora recently, you’ve probably been familiar with their award-winning brands for decades: names like Capital Controls® chlorine gas feed equipment, DE NORA TETRA™ filters, and ClorTec® on-site sodium hypochlorite generators. De Nora, the longtime global manufacturer and supplier of electrochemical solutions, acquired the manufacturing division of Severn Trent Services in 2015. It’s been a couple of years, but you may still have some lingering questions. Let’s clear the air. Water Online spoke with De Nora to learn more about the acquisition. 

  4. “Eureka!” Nevada Community Rushes To Meet U.S. EPA Arsenic Level Standard
    4/13/2017

    With the United States Environmental Protection Agency (USEPA) now requiring arsenic levels of 10 ppb for drinking water, reducing high levels of arsenic in one of its community’s water supply had been a challenge for Eureka County. Find out how a community, who once searched for silver, hunted down a way to remove high levels of arsenic from its drinking water.

  5. Arsenic Successfully Removed In the Mojave Desert With SORB 33 Arsenic Removal Systems
    4/13/2017

    The Moapa Valley is a fertile stretch of land In the Mojave Desert, 50 miles northeast of Las Vegas. Nourished by a network of artesian springs which bubble up from deep underground, the land for years produced carrots, spinach, cantaloupe, tomatoes and potatoes and today produces primarily alfalfa and onions.

  6. De Nora Invests In Core Water Treatment Technologies
    10/29/2016

    Gary Lohse, Regional Sales Manager for De Nora Water Technologies, provides Bill King with a tour of the Company’s WEFTEC 16 booth and explains some of the product enhancements and initiatives that the new company has made since acquiring Severn Trent’s water treatment business last year.

  7. ClorTec On-Site Sodium Hypochlorite Generators
    5/26/2016

    On-site sodium hypochlorite generation is a proven, cost-effective, reliable and safe alternative disinfection treatment method. On-site generated sodium hypochlorite is stable and easy to feed, and less chlorine is lost to the atmosphere because of better mixing and retention in the treated water.

  8. De Nora Brings New Focus To Water Treatment
    10/14/2015

    Following the acquisition of Severn Trent Services’ Water Purification Group, Water Online caught up with John Dyson, Commercialization Manager for the newly-branded De Nora Water Technologies, to understand what the change means for the water and wastewater industry. Dyson discusses how the new organization is enhancing the company’s product lines including the newly redesigned ClorTec on-site sodium hypochlorite generation system.

  9. DE NORA TETRA™ LP Blocks™: Dual Parallel Lateral Clean Water Filter Floor
    10/2/2015

    The TETRA LP Block dual parallel lateral underdrain system delivers distribution of air and water during backwashing to enhance filter cleaning and extend run times. TETRA LP Blocks were developed to overcome problems with air/water distribution experienced with other systems.

  10. DE NORA TETRA™ Wastewater Filtration
    10/2/2015

    De Nora is a global leader in water and wastewater treatment solutions, with more than 90 offices worldwide and $600 million turnover, and state-of-the-art filtration, disinfection and instrumentation technologies.