CASE STUDIES AND WHITE PAPERS

Replacement Of Gas Chlorination System: City Takes Advantage Of Special NaOCl Dosing Unit

Operations management for a municipal direct water filtration plant reports achievement of a reliable and cost-effective change in chlorination systems that has continued to provide for effective disinfection, while better meeting safety and efficiency criteria. By Cliff Lebowitz

  • OSG- On-Site Sodium Hypochlorite (NaOCl) For Drinking Water Applications
    OSG- On-Site Sodium Hypochlorite (NaOCl) For Drinking Water Applications

    Drinking water treatment plants use various forms of chlorine to inactivate pathogens, oxidize metals or metalloids and provide disinfection residual for distribution systems. By Glen Smith, PEPCON Systems

  • Municipality Removes Biofilm, Improves Water Quality, Lowers Dosage With MIOX
    Municipality Removes Biofilm, Improves Water Quality, Lowers Dosage With MIOX

    Looking to reduce potential disinfection byproducts issues that new and difficult regulations were requiring, a Tennessee municipality began investigating alternative water treatment disinfection methods in an effort to reduce the potential liability (RMP) involved with using and storing gas chlorine. Within months of switching to a mix of oxidants (MOS), a difference was noted in the systems residual, residual was no longer dead spotting in low flow areas, and much higher residual was noted in areas that had been difficult to maintain At the end of the first year of operation the municipality had also documented a reduction in their disinfection byproducts formations, specifically both TTHMs and HAAs, which were both reduced by 50% in direct comparison with the quarterly results from the previous year.

  • UV Disinfection Eliminates Groundwater-Borne Pathogens At Water Utility
    UV Disinfection Eliminates Groundwater-Borne Pathogens At Water Utility

    A study led by the Marshfield Clinic Research Foundation set out to prove the growing evidence 'that our groundwater is fairly heavily contaminated with human pathogenic viruses.'

  • North Carolina Treatment Plant Eliminates Taste And Odor Issues With Ozonation
    North Carolina Treatment Plant Eliminates Taste And Odor Issues With Ozonation

    Enactment of the Long Term 2 Enhanced Surface Water Treatment Rule and the Stage 2 Disinfectant-Disinfection Byproduct Rule (D/DBPR) will require both large and small drinking water utilities to reduce total organic carbon (TOC), Cryptosporidium, and disinfection byproducts (DBPs) in the treated drinking water distributed to the public.

  • Systems Work In Series To Increase Filter Run Times, Reduce Water Use, And Improve Finished Water Quality
    Systems Work In Series To Increase Filter Run Times, Reduce Water Use, And Improve Finished Water Quality

    The city of Florence, Colorado Water Treatment Plant (WTP), located 75 miles south of Denver, uses blended surface water taken from the city’s southernmost water reservoir.

  • A Rosemount Chlorine Analyzer Proves Just The Job For Seawater Duty At Dow's Terneuzen Site
    A Rosemount Chlorine Analyzer Proves Just The Job For Seawater Duty At Dow's Terneuzen Site

    The Dow Benelux site in Terneuzen, the Netherlands, uses seawater for process cooling. Environmental regulations require careful control of the concentration of chlorine added to control microbial fouling. The existing chlorine measurement system had become outdated, so after stringent tests Dow decided to replace it with a Rosemount Analytical Model TCL analyzer from Emerson Process Management. By Emerson Process Management, Rosemount Analytical

  • UV Disinfection: An Ideal Solution For One Beverage Bottler
    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.

  • Drinking Water Disinfection: Tianjin, China (Case Study)
    Drinking Water Disinfection: Tianjin, China (Case Study)

    Favorable reviews of UV technology in wastewater applications influenced Tianjin Economic Development Area (TEDA) Water Supply General Company to investigate the potential of using UV for drinking water applications at one of its water treatment plants. With no previous UV installations for drinking water disinfection in the country, TEDA's process of selecting a UV manufacturer was stringent. We are honored that they chose us and our TrojanUVSwift™ system.

  • Removal Of Disinfection Byproducts From Ohio River Water Sources
    Removal Of Disinfection Byproducts From Ohio River Water Sources

    The major cause of water pollution in the Ohio River is attributed to non-point source pollution from urban runoff, agricultural activities, and abandoned mines.

  • 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

  • Water Treatment Plant Solves Taste And Odor Problems And High Toxin Levels
    Water Treatment Plant Solves Taste And Odor Problems And High Toxin Levels

    Phoenix is one of the country’s fastest growing metropolitan areas and has one of the most arid desert climates. Population growth coupled with increasingly stringent water regulations pushed the city to proactively address future water supply concerns. The decision was made to build the Lake Pleasant Water Treatment Plant (WTP) and include oxidation and disinfection treatment barriers.

  • 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.

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.

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DRINKING WATER DISINFECTION PRODUCTS

Selcoperm Electrolytic Chlorination Systems

Selcoperm Electrolytic Chlorination Systems

The particular advantage of on-site generation of chlorine with a Selcoperm system from Grundfos is the fact that no significant unpleasant by-products are generated.
C<sup>3</sup>500&trade;D Ultraviolet Disinfection System

C3500™D Ultraviolet Disinfection System

The C3500™D open channel series is an advanced, cost effective solution for the ultraviolet (UV) disinfection of wastewater using high powered (500W), low-pressure lamps.
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.

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.
Disinfection Technologies

Disinfection Technologies

When determining the best water disinfection method, considering the countless design and operational factors can be daunting, but Severn Trent Services makes it easy

Wallace & Tiernan® Chlorine Gas Feed Systems

Wallace & Tiernan® Chlorine Gas Feed Systems

About 100 years ago, Charles F. Wallace and Martin F. Tiernan installed the first chlorinator in New York, and since, chlorine gas has been the predominant chemical for the disinfection of water.

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DRINKING WATER DISINFECTION PODCASTS

Ozone: An Emerging Star For Disinfection

Ozone: An Emerging Star For Disinfection

There are many places around the country where water shortage is a big issue. Water is the most precious resource we have, and in light of the shortage, people have started trying to investigate creative ways of ‘what’s my next water resource,’ Chris Milligan, vice president, director of engineering with BlueInGreen, told Water Online Radio in an interview.

Advanced Water Treatment Solutions To Solve The Modern Treatment Puzzle

Advanced Water Treatment Solutions To Solve The Modern Treatment Puzzle

Advanced treatment solutions continue to evolve as 1,4-Dioxin, N-Nitrosodimethylamine (NDMA) removal and Pharmaceuticals and Personal Care Products (PPCPs) appear on the regulatory horizon. Many times, advanced treatment requires combinations of different products in the treatment process.

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.

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.

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.

Understanding The Benefits Of Chlorination

Understanding The Benefits Of Chlorination

Fletcher Roche, Product Manager at Evoqua Water Technologies, explains why chlorine gas is a safe and cost-effective disinfection solution.

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DRINKING WATER DISINFECTION VIDEOS

Becancour Water Treatment Plant Video Testimonial

Becancour Water Treatment Plant Video Testimonial

Pinnacle Ozone Solutions is proud to present a new video featuring one of our newest Canadian installations in Becancour, Quebec. The video features the City’s Superintendent of Environmental Health, Mr. Michel Carbonneau. As you’ll see in the video, Michel has high remarks for Pinnacle’s modular capability, built in redundancy and ease of installation. Pinnacle’s vision of INVENTING a BETTER ozone generation platform centers around a technology that is flexible, reliable and efficient. This video exemplifies our vision and Pinnacle’s commitment to deliver, service and support our customers. Special thanks to Mr. Michel Carbonneau and The City of Becancour for entrusting Pinnacle Ozone Solutions with their ozone generation needs.

Severn Trent Services Expands Capabilities For Disinfection, Nutrient Removal, And Filtration

Severn Trent Services Expands Capabilities For Disinfection, Nutrient Removal, And Filtration

Water Online’s Ron Grunsby interviews John Dyson of Severn Trent Services to uncover the latest innovations and developments from the company, including the product line on display at WEFTEC 2012.

Ozone Trending As Reuse Solution

Ozone Trending As Reuse Solution

In many water-scarce parts of the country, today’s wastewater is tomorrow’s drinking water. With reuse increasing rapidly, effective disinfection is more important than ever before. One solution that many wastewater and water utilities are turning towards is ozone.

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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.