CASE STUDIES AND WHITE PAPERS

ClorTec Hickory Case Study
The use of gaseous chlorine at water treatment plants has, for many years, been an effective method of disinfection. It is still the most commonly used disinfectant in plants throughout the United States.
  • 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.

  • Small UV Plant Is Designed To Address Cultural And Safe Drinking Water Needs Cost-Effectively
    Small UV Plant Is Designed To Address Cultural And Safe Drinking Water Needs Cost-Effectively

    BI Pure Water worked with University of British Columbia researchers and Lytton First Nation to develop a water disinfection system that addresses the needs of native communities, both cultural values as well as the basic necessity of clean drinking water.

  • Engineering For Safe Chlorine Disinfection
    Engineering For Safe Chlorine Disinfection

    For more than 75 years chlorine has been effectively used to disinfect drinking water, eliminating dangerous bacteria and toxic compounds. Water supply engineers and treatment facility operators are used to necessary risks and problems associated with chlorine disinfection in order to deliver safe water. By Harland R. Pond, Product Manager; Grundfos

  • The UV Uprising: How UV Disinfection Will Claw Its Way To Prominence
    The UV Uprising: How UV Disinfection Will Claw Its Way To Prominence

    Chlorination in all of its forms — gas, liquid, or solid — has been the primary way for treatment plants to disinfect the treated wastewater. The treatment plants that use gas chlorination must face federal regulatory oversight in the form of a Risk Management Program (RMP). Liquid chlorine plants trade in the regulatory oversight for a more expensive and less effective product. While chlorine in its solid form is good for small treatment facilities known as package plants (named for their mobility). However, ultraviolet (UV) technology is rapidly altering the landscape of disinfection throughout the industry.

  • 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

  • On-Site Disinfection Helps Ensure Safety At British Columbia Water Treatment Facility
    On-Site Disinfection Helps Ensure Safety At British Columbia Water Treatment Facility

    Constructed in 1997, the District of Chetwynd Water Treatment Plant (British Columbia, Canada) treats nearly 2,500 cubic meters of water per day using gas chlorination as its primary form of drinking water disinfection

  • Why All The Hype About Chlorine Gas Safety?
    Why All The Hype About Chlorine Gas Safety?

    Remember when “Little Old Lady” Clara Peller rolled up to the drive-through window of Big Bun and asked “Where’s the beef?” She was asking a literal question, but also making a figurative statement. 

  • Color Reduction From RO Concentrate
    Color Reduction From RO Concentrate

    The City of Palm Coast, FL was experiencing elevated color in the concentrate stream being directed to the lime softening facility to recover as drinking water. In an effort to meet secondary color standards at the lime plant, this water quality issue limited the volume of the concentrate able to be recovered.

  • GAC Solution For Ohio's Most Challenging Water
    GAC Solution For Ohio's Most Challenging Water

    Over the course of many years the City of Celina, Ohio has been challenged with supplying drinking water to the 11,647 residents of the city and the East Jefferson District.

  • Disinfection Performance Testing Of High-Efficiency Ultraviolet Water Treatment Chamber
    Disinfection Performance Testing Of High-Efficiency Ultraviolet Water Treatment Chamber

    This is the second in a series of three white papers describing the design and performance of the NeoTech Aqua ReFlex™ treatment chamber. The first describes in detail the theoretical basis for the very high efficiency demonstrated by the chamber. The third paper describes how this chamber design leads to some highly desirable operational advantages beyond just energy ad cost reduction. By J. R. Cooper, Ph. D. and Gwynne Cavender, NeoTech Aqua Solutions, Inc.

  • The Basics Of Disinfection
    The Basics Of Disinfection

    From utility water to wastewater, whether used in industrial processes or for drinking, disinfection plays a prominent role in providing safe and useable water. Water free from pathogens and other microorganisms ensures processes run efficiently and people are kept safe from disease. By Harland R Pond, Business Development Manager – Water Treatment

  • UV Eliminates Cryptosporidium Issues In The Heartland
    UV Eliminates Cryptosporidium Issues In The Heartland

    The City of Moline is now adding validated UV systems to provide an additional barrier for the filtered water, which will improve water quality and ensure that none of the chlorine tolerant organisms such as Cryptosporidium is present. The City of Moline is located in the heart of the Midwest, tucked between the banks of the Mississippi and Rock River in Rock Island.  Moline is one of four cities that make up the Quad Cities that include Rock Island, Illinois and Bettendorf and Davenport Iowa.

UV Disinfection: An Ideal Solution For One Beverage Bottler

A well known bottler of teas and sports drinks uses a dose-paced UV system from ETS to accommodate changes in flow and water quality when switching between water sources.

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DRINKING WATER DISINFECTION PRODUCTS

NeoTech D328™

NeoTech D328™

The NeoTech D328™ is specially designed to disinfect water and is an essential component in advanced oxidation processes.

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.
MC4-400 High Capacity Calcium Hypochlorite Disinfection System

MC4-400 High Capacity Calcium Hypochlorite Disinfection System

Arch Chemicals, Inc., a Lonza company produces the new generation Constant Chlor® Plus calcium hypochlorite briquette feed systems for disinfection.
BatchMaster™ OSHG Batch Process, Electrolytic System

BatchMaster™ OSHG Batch Process, Electrolytic System

PEPCON's BatchMaster™ OSHG is a batch process, electrolytic system. With a simple brine solution (water & salt) and electricity you are able to generate sodium hypochlorite, safely and on-site. The hazards and costs associated with the transportation, storage and handling of chlorine gas or highly concentrated commercial bleach are eliminated.
Sentinel® 18

Sentinel® 18

Designed to treat flows up to 10 million gallons per day (38 MLD), the Sentinel 18 can effectively disinfect drinking water in small- to medium-sized treatment plants.
ETS-UV For Drinking Water Disinfection

ETS-UV For Drinking Water Disinfection

The ETS range of drinking water UV systems are modeled using CFD and FEA emulation tools and have been independently validated to demonstrate performance under a variety of operating conditions.

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DRINKING WATER DISINFECTION PODCASTS

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.

Can’t Keep Up? Partner With A Manufacturers’ Rep To Sustain Growth

Can’t Keep Up? Partner With A Manufacturers’ Rep To Sustain Growth

Rich Cavagnaro, President of AdEdge Water Technologies, and Tom Carmody, President of TC Tech LLC, share how their companies have partnered to successfully grow business in the advanced water treatment technology space.

Let’s Talk Adenovirus With TrojanUV (Audio)

Let’s Talk Adenovirus With TrojanUV (Audio)

Adam Festger, Drinking Water & Environmental Contaminant Treatment market manager for TrojanUV, sat down with Water Online Radio to discuss UV trends and technologies. Hear all about TrojanUV’s “Let’s Talk Adenovirus” campaign, as well as the company’s growing installation base and recent product developments.

A Sustainable Solution For Treating Contaminants

A Sustainable Solution For Treating Contaminants

There are a number of regulations in drinking water centered around emerging contaminants. Hexavalent chromium is one that you’ll see on the national marketplace.

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?

Peristaltic Vs. Diaphragm Pumps

Peristaltic Vs. Diaphragm Pumps

Bill McDowell of Blue-White Industries, a supplier of chemical metering pumps and flow meters, recently sat down with Water Online Radio and explained the difference between peristaltic pumps and diaphragm pumps.

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DRINKING WATER DISINFECTION VIDEOS

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.

Building Water Confidence With UV Disinfection (Video)

Building Water Confidence With UV Disinfection (Video)

TrojanUV is dedicated to providing the world with more efficient, environmentally-friendly water treatment solutions. This video shows how we’re helping municipalities deliver water confidence to their communities.

Open Channel Ultraviolet Disinfection From WEDECO

Open Channel Ultraviolet Disinfection From WEDECO

Water Online’s Bill King talks to Jay Jordan of WEDECO about the Duron UV system, which Jordan describes as an efficient, green solution that requires little maintenance. Suitable for secondary and tertiary wastewater applications, the Duron features a compact design, intelligent dose control, and overall efficiency benefits further described in the video.

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DRINKING WATER DISINFECTION SUPPLIERS

  • Arch Chemicals, Inc., a Lonza company
    Arch Chemicals, Inc., a Lonza company

    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.

  • Membrana
    Membrana

    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.

  • Severn Trent Services
    Severn Trent Services

    Severn Trent Services 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.