DRINKING WATER DISINFECTION RESOURCES

  • The City of Belleville, Ontario was planning on re-developing downtown waterfront property into a public space containing a park and a green space. Unfortunately, the proposed site had a long history as an industrial site – initially for a coal gasification plant from 1854 to 1947 and then as a bulk oil storage facility from 1930 to 1990.

  • Sigura™ calcium hypochlorite offers cooling tower operators and their service providers a highly effective biocide designed for controlling microorganisms to maintain system cleanliness, achieve associated production efficiency gains, and help guard against biofouling. Learn how a West Coast service provider's switch to Calcium Hypochlorite lead to a more consistent chlorine concentration and eliminated the need for frequent pump adjustments.

  • Disinfection has come a long way — enough so to consider alternative options that can help water suppliers avoid harmful byproducts.

  • The ozonation process for water purification is a powerful option for optimal disinfection and the reduction of micropollutants. Still, it may result in the formation of potentially toxic oxidation byproduct bromate in bromide-containing waters. This paper provides a high-level overview of the problem and highlights the main pathways of ozone decomposition and propositions to control bromates formation.

  • Why are living biofilm super-pathogens spreading in water systems, and what is the best way to defeat them?

  • In many water and wastewater treatment applications, there are a number of pollutants that are difficult to reduce by physical, chemical, or biological means alone. In more recent years, there has been a growing concern regarding pharmaceutical drugs in drinking water and aquatic environments. Pesticides get caught in runoff from farms into freshwater supplies. Personal care products are typically washed down the drain into whatever system they are linked to. Landfill leachate is a toxic cocktail of compounds that can leak into groundwater sources. Such contaminants fall into the category of micropollutants, because they are so small. Their size alone is part of the reason, they are so difficult to remove from water and wastewater by certain means. More efficient removal requires a more powerful oxidation process, this process is called an advanced oxidation process (AOP).

  • The New York State Department of Health has recognized the ultraviolet advanced oxidation process (UV AOP) as a treatment solution for 1,4-dioxane. For water providers located in Nassau County on Long Island, it was necessary to pilot UV AOP technology at the various wells requiring treatment in order to confirm treatment efficacy and obtain state approval.

  • Read the full white paper to learn how testing was performed to confirm that the Preservation B reagent used in LuminUltra® SARS-CoV-2 Environmental Monitoring Kits inactivates the SARS-COV-2 virus to ensure safe handling of samples throughout the assay.

  • Legionella is a genus of bacteria that are found widely in aquatic environments, particularly in constructed water systems with warm temperatures. These bacteria are known for causing Legionnaire’s Disease and Pontiac Fever. This whitepaper focuses on monitoring strategies that can be used as a component of a water management plan for controlling Legionella growth in various types of water systems (cooling towers, hot water, potable water, etc.) and reducing associated risks.

  • Long Beach Township is the largest town on Long Beach Island, New Jersey. With 18 miles of beaches, the town is a major tourist destination. Population exploded during the summer months from approximately 3,000 to over 100,000. This can be a challenge for the town's drinking water facilities, with demand increasing exponentially during the tourist season.

DISINFECTION SOLUTIONS

  • Removal Of Chloramines With Activated Carbon

    In order to reduce the formation of harmful disinfection byproducts in drinking water, alternative disinfectant use has become increasingly widespread. Monochloramine is a leading alternative disinfectant that offers advantages for municipal water. This tech brief details the removal of monochloramine using activated carbon.

  • MiPRO™ Advanced Oxidation Solutions

    As water resources become increasingly stressed due to drought, flooding, population growth and pollution, the close linkage between wastewater, rivers, lakes and groundwater becomes even more important. Our use and reuse of water has become a critical water quality and supply issue, one frequently challenged by the presence of recalcitrant trace organic compounds.

  • UAT™ Membrane Filtration Systems

    UAT™ Pure Pro seawater desalination membrane filtration systems from De Nora Water Technologies are ideal for offshore oil and gas applications. The standard output capacities range from 2,000 GPD to 26,000 GPD (7,570 LPD to 98,410 LPD) and effectively produce fresh treated potable water, free of particulate matter or contaminants from a seawater source. Higher output capacities and custom configurations are available on a project to project basis.

  • NeoTech D428™

    The NeoTech D428™ is specially designed to disinfect water and is an essential component in advanced oxidation processes.

  • Constant Chlor® MC5 Feeder

    The Constant Chlor® MC5 Feeder system provides reliable chlorine solutions for water treatment plants, waste water plants and water reclamation facilities. The Constant Chlor® system consistently delivers liquid available chlorine for disinfection applications that kills bacteria, controls algae and removes organic contaminants. The feeders use EPA registered Constant Chlor® Briquettes that work in conjunction with the feeder to produce a fresh concentrated liquid chlorine solution for clean, clear, sanitized water. Treats facilities with up to 10 MGD ranging from a minimum of 5 lbs a day available chlorine to 83 lbs a day available chlorine.

DRINKING WATER DISINFECTION VIDEOS

Ralph Franco, PE, Applications Engineering Manager North America for WEDECO -- A Xylem Brand discusses the treatment and future regulation of 1,4-dioxane at the Water Online Virtual Water Expo.