CASE STUDIES AND WHITE PAPERS

Baja California, Mexico Addresses Water Scarcity, Partnering With Fluence
Baja California, Mexico Addresses Water Scarcity, Partnering With Fluence

When the government of Baja California, Mexico, declared a water emergency for the region of San Quintín in 2014, leaders knew they needed to find a solution to ensure residents a reliable, safe water source.

  • General Electrochemistry
    General Electrochemistry

    All chemical processes involve the loss, gain, or redistribution of electrons on an atom or group of atoms. Electricity is the movement of electrons along a conductor. It is no wonder then that chemical changes can be made to occur by passing an electric current through a solution containing atoms or groups of atoms which will accept or give up electrons. Processes which pass an electrical current through a solution to effect chemical changes are called electrochemical processes. By PEPCON Systems

  • Ohio Water Plant Finds Effective Alternative To Chlorine Gas
    Ohio Water Plant Finds Effective Alternative To Chlorine Gas

    For many years, Huber Heights, OH, searched for an effective and affordable way to eliminate gaseous chlorine (Cl2) use at its 4.46 MGD Needmore Road Water Treatment Plant. An innovative dry calcium hypochlorite makeup and delivery system now provides a safer disinfection method for operators and the community.

  • Stormwater Treatment and Reuse - Toronto, Ontario (Case Study)
    Stormwater Treatment and Reuse - Toronto, Ontario (Case Study)

    Sherbourne Common is an innovative waterfront park that provides the public with green recreational space along Lake Ontario in a former industrial area. 

  • Dissolved Air Flotation System Reduces Costs, Improves Process
    Dissolved Air Flotation System Reduces Costs, Improves Process

    With the town of Johnstown, CO's, water treatment plant began operating its circular clarifier systems at maximum capacity to meet summer peak demand rates, consultants recommeded increasing plant capacity and using dissolved air flotation technology for their clarification process.

  • Treatment Of Cyanotoxins In Drinking Water With Activated Carbon
    Treatment Of Cyanotoxins In Drinking Water With Activated Carbon

    Recently, cyanobacteria and cyanotoxins have become a high profile drinking water quality concern in both the United States and abroad. The combination of weather conditions, agricultural phosphate runoff, and other factors has produced water conditions that have favored the formation of cyanobacteria in surface water supplies.

  • San Jose Water Company Solves Chloramine Residual Problem With The Process Solutions, Inc. Monoclor™ Chloramine Management System
    San Jose Water Company Solves Chloramine Residual Problem With The Process Solutions, Inc. Monoclor™ Chloramine Management System

    A San Jose Water Quality Engineer said, "“I wasn’t convinced that PSI’s Monoclor™ chloramine dosing system would solve our problems after several failed attempts to improve residual, but with PSI offering a trial including installation, operation, and troubleshooting for three months, San Jose Water decided to invest the necessary resources to pilot this system.

  • Hassle-Free Chlorination For Large Municipalities
    Hassle-Free Chlorination For Large Municipalities

    For Robert Stout, general manager of Mid-Arkansas Utilities (MAU), the primary water provider for a three-county rural area spanning 2,220 square miles, the reason to switch to a dry calcium hypochlorite feeding system was simple, “using chlorine gas was not only dangerous for us, it was a big hassle and time-consuming.”

  • Ozone Disinfection System Provides Second Stage Treatment For Water Treatment Plant
    Ozone Disinfection System Provides Second Stage Treatment For Water Treatment Plant

    Tampa Bay Water’s state-of-the-art surface water treatment plant has provided high-quality drinking water to the Tampa Bay region.

  • California Mountain Town Cuts Salt Use, Doubles Disinfection
    California Mountain Town Cuts Salt Use, Doubles Disinfection

    The wastewater treatment facility of the remote mountain resort community of Pinecrest Lake bears the brunt of spring runoff and increased summer demands in the area's beautiful surroundings.

  • Drinking Water Disinfection – A History And Improved Monitoring Techniques
    Drinking Water Disinfection – A History And Improved Monitoring Techniques

    In many countries we take for granted the availability and reliability of safe drinking water.  A recent trip outside of the US reminded me of this fact when I saw notices in the hotel rooms stating the drinking water met specific standards and was safe to drink however, my friends from the country emphatically warned me to not drink the water.

  • An Alternative Mathematical Model For Oxygen Transfer Evaluation In Clean Water
    An Alternative Mathematical Model For Oxygen Transfer Evaluation In Clean Water

    Energy consumption from aeration system is a biggest part of the total energy cost in wastewater treatment plant and account for as much as 60% of the energy consumption for the activated sludge process. Therefore, it is very important to know how effective the aeration system and significant attention has been paid to development and upgrade of standard method for quantifying oxygen transfer efficiency of the aeration system. By Yanjun (John) He, PE, BCEE, Kruger Inc.

  • Generating Disinfectants From Water: Could In Situ Electrolytic Production Be The Future?
    Generating Disinfectants From Water: Could In Situ Electrolytic Production Be The Future?

    Chemical disinfection using strong oxidants involves the transportation, storage, and handling of unstable and/or aggressive and hazardous chemicals. The production of oxidants at the location where they are to be used has therefore been a preferred option, especially in small-scale or remote installations. On-site electrolysis of NaCl for the local production of chlorine or hypochlorite, or the production of ozone-enriched oxygen by silent discharge has been standard for years.  However, it is possible to take the idea of producing chemical disinfectants locally a step further and look at in situ techniques, i.e. at devices, which produce oxidants in and from the water to be treated. By Dr. Samuel Stucki, Scientific Consultant to Innovatec Gerätetechnik GmbH,Germany

Mountain Regional Water District Deploys Next Generation On-Site Hypochlorite And Tank Mixing Technology To Meet Expanding Water Management Needs
Mountain Regional Water District Deploys Next Generation On-Site Hypochlorite And Tank Mixing Technology To Meet Expanding Water Management Needs

The Mountain Regional Water District is a Special Service District of the county that was established by the Summit County Commission in 2000 to regionalize water service by consolidating several public and private water companies.

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DRINKING WATER DISINFECTION PRODUCTS

ETS-UV™ For Drinking Water ETS-UV™ For Drinking Water

Drinking water facilities are under pressure to do more with less. Public safety and water quality cannot be compromised so it's important to incorporate solutions that are proven to perform. A number of ETS-UV™ disinfection systems have been validated by an independent third party for drinking water in accordance with the US EPA Design Guidance Manual and NSF/ANSI Standard 61.

MEMCOR® XS - Submerged Membrane System MEMCOR® XS - Submerged Membrane System

The Memcor® XS is a treatment unit which includes all equipment necesary to operate on a single skid.

TrojanUVSwift™SC — Drinking Water Disinfection System TrojanUVSwift™SC — Drinking Water Disinfection System

The TrojanUVSwift™SC offers a comprehensive and advanced suite of bioassay validations, with models having undergone rigorous USEPA, DVGW and ÖNORM certification using multiple organisms and encompassing a wide dose range.

Brands You Know. Performance You Trust Brands You Know. Performance You Trust

While the Evoqua name is new, the brands you know and the performance you trust are not. Evoqua continues a 100-year tradition of helping consulting engineers and municipalities respond to market needs and evolving water standards for new plants, upgrades and retrofits.

TAK Smart™ UV System: Validated Disinfection Performance For Small Treatment Plants TAK Smart™ UV System: Validated Disinfection Performance For Small Treatment Plants

Cost effective UV disinfection with minimal operator involvement.

ChlorMaster® On-Site Sodium Hypochlorite Generation Systems ChlorMaster® On-Site Sodium Hypochlorite Generation Systems
ChlorMaster seawater systems are commonly used in coastal and offshore installations such as power plants, desalination plants, and oil drilling and production facilities. They effectively control slime and marine organism growth in condenser cooling water, circulating water and service water systems.
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DRINKING WATER DISINFECTION PODCASTS

Is UV Poised For Increased Adoption? Is UV Poised For Increased Adoption?

Disinfection can be achieved through chlorine, membranes, ozonation, or UV (among others), but the latter may be best equipped to serve the changing water treatment market.

UV Disinfection With LEDs UV Disinfection With LEDs

UV LEDs offer the chemical free disinfection of traditional UV while avoiding mercury lamps. In certain applications where customers are concerned about the potential hazards of mercury contamination in the water from a broken lamp, UV LEDs are interesting because they don’t contain any mercury content at all.

TrojanUV + Water Reuse (Audio) TrojanUV + Water Reuse (Audio)

Jennifer Muller, municipal marketing director for TrojanUV, sat down with Water Online Radio for this live interview from the show floor at WEFTEC 2011 in Los Angeles. Muller talked about Trojan’s ultraviolet (UV) disinfection technology and how it lends itself to the important issues of water reuse and sustainability.

Water Quality Comes Under The Consumer Microscope Water Quality Comes Under The Consumer Microscope

Water quality is getting a lot more scrutiny these days. And that’s a good thing says Russ Swerdfeger, Global Director of Memcor Product Management with Evoqua. Alongside his colleague Daryl Weatherup, Director of Marketing with Evoqua, Swerdfeger recently discussed the future of drinking water and the key issues and concerns facing the water industry right now with Water Talk.

The Evolution Of Low-Energy UV Disinfection The Evolution Of Low-Energy UV Disinfection

Conventional ultraviolet (UV) disinfection is a great, but often expensive, solution for the destruction of pathogens in drinking water. All those lamps and power emissions add up. But what if you could perform the same job with 1/10 of the power used by conventional systems?

UV-LED Technology: The Latest In Disinfection UV-LED Technology: The Latest In Disinfection

Dan Shaver, Business Development Manager at Aquionics, talks about the advantages of UV-LED technology for disinfection: low energy requirements, chemical-free and customizable design, and proficiency in solar or battery-powered applications.

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DRINKING WATER DISINFECTION VIDEOS

Safeguarding Source Water: How Online Monitoring Of Algae Leads To Data-Driven Decisions Safeguarding Source Water: How Online Monitoring Of Algae Leads To Data-Driven Decisions

Join Dr. Arash Zamyadi, UNSW Australia, and Kevin Simpson, YSI on July 28 at 2:00 EST for a webinar in which they will discuss recent work deploying optical sensing technology to monitor for harmful algae blooms (HAB’s) in raw water.

5500sc Ammonia Monochloramine Analyzer 5500sc Ammonia Monochloramine Analyzer

The Hach 5500sc Ammonia Monochloramine Analyzer provides all the information you need to eliminate nitrification events and taste and odor issues, giving you total confidence in your process. The analyzer offers an easy to operate, low-maintenance solution with a pressurized reagent delivery system.

TrojanUV at ACE10 - The Launch of Solo Lamp™ Technology (Video) TrojanUV at ACE10 - The Launch of Solo Lamp™ Technology (Video)

Under the big red umbrella, Jennifer Muller of TrojanUV discusses the company’s new solo lamp technology and the TrojanUV Torrent, a large-scale drinking water disinfection system being introduced at the show.

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DRINKING WATER DISINFECTION SUPPLIERS

  • Lonza
    Lonza

    Lonza Microbial Control produces the new generation Constant Chlor® Plus calcium hypochlorite briquette feed systems that provide increased capacity and accuracy that exceeds its first generation system, plus new capabilities and features that further enhance operation, maintenance and safety.

  • Calgon Carbon Corporation
    Calgon Carbon Corporation

    Calgon Carbon Corporation (NYSE:CCC), and its European operation Chemviron Carbon, is a global manufacturer and supplier of granular activated carbon, innovative treatment systems, value added technologies and services for optimizing production processes and safely purifying the environment

  • JCS Industries Inc.
    JCS Industries Inc.

    JCS Industries, Inc. was founded in 2002 as a product development company charged with developing an alternative to the current vacuum feed liquid doser technology for a worldwide manufacturer of water and waste treatment equipment. After one year of design and two years of beta testing, JCS developed the Model 4100 Automatic Vacuum Liquid Feeder.

  • 3M Separation and Purification Sciences Division
    3M Separation and Purification Sciences Division

    3M Liqui-Cel Membrane Contactors are used for degassing liquids. They are most commonly used for O2 removal from water and CO2 removal from water, but they are also capable of controlling a variety of other dissolved gasses as well, such as Nitrogen.

  • MIOX Corporation
    MIOX Corporation

    With a history of scientific innovation, MIOX Corporation began manufacturing on-site generators in 1994. Now with more than 1,700 installations in hundreds of U.S. communities and over 30 countries, MIOX is employed in many markets and applications including potable water, wastewater and reuse, commercial swimming pools, on board military and cruise ships, cooling towers, the beverage industry, oil and gas water treatment, and other commercial and industrial applications.

  • PEPCON Systems
    PEPCON Systems PEPCON Systems (PEPCON) designs, manufactures and services equipment that utilizes a proven electrochemical process to safely and economically treat water and control odor in a variety of applications. These systems are marketed under the names ChlorMaster® and OdorMaster® and are available worldwide.
  • Pinnacle Ozone
    Pinnacle Ozone

    Pinnacle Ozone is the manufacturer and world class integrator of rugged & compact, energy efficient industrial ozone systems. Our Pinnacle systems are used in a diverse array of industrial, commercial and municipal water application areas where treatment requires compact size, system mobility, high efficiency, wide operational pressure, and complex system integration solutions and services.

  • De Nora
    De Nora

    De Nora Water Technologies is a leading supplier of water and wastewater treatment solutions. We provide our clients with some of the industry’s brightest minds, advanced technologies, and quality products to provide you with truly efficient, cost-effective solutions to your water and wastewater challenges

  • TrojanUV
    TrojanUV

    TrojanUV specializes in the design, manufacture and sale of pressurized and open-channel ultraviolet (UV) disinfection systems for municipal wastewater, municipal drinking water and environmental contaminant treatment applications. We are proud to have the largest installed base of UV systems in the world and are committed to reducing water stress and maximizing this invaluable resource for current and future generations.

  • WEDECO -- A Xylem Brand
    WEDECO -- A Xylem Brand

    Using processes that are both future-oriented and ecologically harmless, WEDECO products are committed to improving the foundations on which we live, on a global scale. As a company committed to healthcare, we consider it our duty to create health provisions, especially in the area of water disinfection. The broad outline of our business is to realize the best possible solution for mankind and the environment, and the most economic solution for our clients.

  • UV Pure Technologies
    UV Pure Technologies

    UV Pure® Technologies develops and manufactures technically advanced UV water purification systems. Since 1998, over 12,000 UV Pure systems have been installed in residential, commercial, industrial, public and municipal applications treating wastewater, reuse water, rainwater, and drinking water. The company’s Crossfire Technology is dramatically advantaged compared to conventional ultraviolet systems. UV Pure Systems are self-cleaning, and smart - with multiple sensors and on-board diagnostics. They are engineered to be fail-safe and virtually maintenance-free. Lamps are mounted in air surrounded by elliptical reflectors providing more effective deactivation of pathogens, incorporating easy lamp changes and visual quartz inspection. Remote monitoring is available.

ABOUT DRINKING WATER DISINFECTION

WATER DISINFECTION

Water disinfection is the process of removing unwanted chemicals, biological contaminants, suspended solids and gases from contaminated water. It is also the elimination, deactivation or killing of pathogenic microorganisms.

Methods used include physical processes such as filtration, sedimentation, and distillation, biological processes such as slow sand filters or activated sludge, chemical processes such as flocculation and chlorination and the use of electromagnetic radiation such as ultraviolet light.

Ozonators produce small quantities of ozone which is a strong oxidizing agent that kills pathogens over a short period of time.