Arsenic Treatment   Water Quality Products June 2003   Ley Hathcock, Ph.D., Rich Cavagnaro & Greg Gilles
A wide range of technologies, some new and some more traditional, is being marketed and applied for arsenic treatment. Each of these technologies has specific properties impacting its suitability for any particular scale of application. While rare, the ability of a single water treatment technology to perform effectively across many treatment platforms is not unique.
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Zero Waste: A Look at the Future of Reverse Osmosis   Water Quality Products March 2003   Josh Hanford, Watts Industries
Most reverse osmosis systems waste as much as 20 gallons just to produce one gallon of product water. The new technology called "ZeroWaste" eliminates this problem by returning the concentrate water from the reverse osmosis system back to the home's plumbing, resulting in 100 percent efficiency.
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Disinfection, Part 1: Developments in Ultraviolet Disinfection   Water Quality Products January 2003   Bruce Laing, Trojan Technologies, Inc.
One of the fastest growing technologies in the water treatment industry is ultraviolet (UV) disinfection. UV disinfection adds no chemicals, and it does not produce byproducts. Additional benefits include easy installation, low maintenance, minimal space requirements and whole-house (point-of-entry) treatment.
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Legionella Solutions   Water Quality Products September 2002   Bernard Banga, Freelance Writer, French Technology Press Office
Legionnaires' disease is considered so catastrophic that, in France, it must be reported to the medical authorities immediately. This practice has been in place since 1987. During the last decade, public health monitoring systems for this disease have been strengthened. Today, this hazard that arises from buildings has become an emerging public health problem in industrialized countries. The resulting respiratory infections are behind the recurrent epidemics emanating from hot water systems in buildings and air-conditioning cooling towers.
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Developments in Ozone Technology   Water Quality Products July 2002   Rip G. Rice, Ph.D., RICE International Consulting Enterprises
Ozone technology developments have opened new applications for these established water treatment technologies. Driving these changes has been the identification of new, more disinfection-resistant microorganisms such as Giardia and Cryptosporidium cysts and governmental regulations designed to protect the public health from the hazards of ingestion of these microorganisms. Additionally, the desire to prevent or minimize the formation of halogenated disinfection byproducts formed during chlorination has stimulated new interest in the use of ozone. Combinations of ozone with hydrogen peroxide and/or ultraviolet (UV) radiation can destroy many contaminants present in ground water.
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The Practical Use of Ozone for the Well Water Application   Water Quality Products July 2002   Roger Nathanson, Ozone Pure Water, Inc.
We?ll discuss the well ozone water treatment application. Each application is a potential business in itself, which means greater revenue and profit. All that is necessary from you is the motivation to boldly go where you have not gone before.
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Advanced Technology Brings the Power to Chlorine Dioxide   Water Quality Products May 2002   Michael Cochran, Engelhard Corp
Chlorine dioxide is an extremely effective and powerful biocide that has been used for many years as a bleaching agent and slimicide in the pulp and paper industry, as a disinfectant in municipal water treatment and in many other industrial water treatment operations. However, significant capital and operating costs have limited the use of chlorine dioxide to large-scale applications. New technology now makes it practical to use the biocide in a wider range of water treatment applications.
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POU Technology Demonstrates Effectiveness   Water Quality Products March 2002   By Jennifer Mathis, Apyron Technologies, Inc.
In March 2001, the U.S. Environmental Protection Agency (EPA) withdrew a proposal for a lower maximum contaminant level (MCL) for arsenic in drinking water that would bring the standard from 50 parts per billion (ppb) to 10 ppb. At that time, the EPA commissioned three studies to examine the benefits, costs and health effects associated with a lower standard for arsenic.

Metering Pump Technology   Water Quality Products March 2002   By Steven Ebersohl, Pulsafeeder, Inc.
Since the introduction of the metering pump, chemical feed for disinfection has been a primary application. As we move into the 21st Century, it again is time to review how we introduce chemicals such as sodium hypochlorite into our water systems. While the goal remains the same, changes in pump technology have been created to provide more accurate and consistent results. This article will discuss current metering pump technologies, proper pump sizing, installation and future enhancements.

Innovations in the Activated Carbon Industry   Water Quality Products February 2002   Henry Nowicki, Barbara Sherman and Homer Yute
Like an international cookbook, the attendees of the Ninth Annual International Activated Carbon Conference (IACC) from around the world contributed to a recipe for a successful future for the activated carbon industry. Speakers brought their new ideas and on-going practices together. This annual conference had guests from all over the United States, Canada, Australia, Sri Lanka, Indonesia, Mexico, South Africa and India. The conference connects buyers, sellers and users of activated carbon and related materials and services.
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Winning Websites   Water Quality Products November 2001   By Walt Denny, Walt Denny, Inc.
If optimally designed, your website can be a powerful customer magnet or, if it is not, a sure-fire customer repellent.
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Can Technology Help You Sell More? Part 2   Water Quality Products November 2001   By Carl Davidson
Last month, I discussed a few ideas on tossing your selling techniques into the new century by utilizing available technologies. This month lists a few more selling ideas that have proved themselves worthy of a salesman’s efforts.
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Ozone for Bottled Water   Water Quality Products October 2001   Andrew Zaske and Aaron Edland, Osmonics, Inc.
The proliferation of bottled beverages worldwide and an increased awareness of consumer health issues have beverage suppliers rethinking how to keep their liquids safe for consumption.
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Commercial, Industrial Ultraviolet Systems   Water Quality Products June 2001   Adam Donnellan
In past articles, we discussed the benefits of ultraviolet (UV) disinfection as well as the many available options. In this article, we will focus on the available technologies and provide an overview of how these technologies are being applied in commercial and industrial applications.
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Flexible Monitoring System Helps Ohio Company Meet Daily EPA Measurement Requirements   Water & Wastes Digest May 2001
An Ohio utility company provides water plant operator services to facilities throughout the state, including several very large travel center operations. Daily monitoring became time consuming and costly, so they sought a more efficient solution by investigating plant monitoring systems.
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Data Acquisition, Legacy Systems and Your Intranet   Water & Wastes Digest February 2001   By Fred Noble
There are lots of parallels between the events of November 2000 and the events that take place in any factory or municipality that runs a process or monitors its effluent. The technology exists to achieve the much-talked-about six sigma (3.4 errors per million events) levels of measurement quality or process integrity. But antiquated legacy systems keep getting in the way. And, as is the case on the American political scene, it just is not that easy to replace those old methods of measuring things.

Basic Essentials   Water Quality Products January 2001   Adam Donnellan, Sunlight Systems
The benefits of ultraviolet (UV) light in destroying waterborne diseases are well established. This article (part one in a continuing series) will focus on explaining the basic terminology associated with the technology.
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Molecular Techniques: Detecting Human Enteric Viruses   Water Quality Products May 2000   Paul S. Warden and Kristen S. Fallon
This article presents an overview of human enteric viruses, reviews traditional and modern molecular detection methods and discusses recent research comparing traditional and molecular techniques.

SCADA Systems Enhance Reliability of Remote Installations   Water & Wastes Digest May 2000
A total system replacement is an expensive proposition – especially when some elements still may be working well. The city of Rome, Georgia, faced this dilemma when they needed to upgrade an existing Supervisory Control and Data Acquisition (SCADA) system used in the municipality’s water treatment facilities.

Pressure Switches Activate Alarms, Control Equipment   Water & Wastes Digest April 2000
Pressure switches are used in process plants around the world for a wide variety of alarm, shutdown and control applications. Often they are the most cost effective way to protect operators, equipment or work-in-progress.

Liquid Regeneration of Spent Activated Carbons   Water Quality Products March 2000   Henry G. Nowicki
New liquid phase-based processes to regenerate spent AC have been conducted. Two liquid processes, competitive adsorbate displacement and supercritical fluid (SCF) regeneration, will be discussed.

Improving the Quality of Deionizers   Water Quality Products March 2000   Jim Sabzali and C.F. Chubb Michaud
Though both the cation and the anion resin are responsible for the quality of a deionization (DI) system effluent, it is the cation resin that is the big contributor to leakage.

Ethernet I/O System Offers Enhanced Communications, Customization Options   Water & Wastes Digest November 1999
In response to the increasing use of its Ethernet products, Opto 22 now offers a program called OptoEngineering Services. This program allows customers to request customization of the company’s SNAP Ethernet I/O products.

Little Rock Plant Serious About Oxygen Management   Water & Wastes Digest October 1999   Clyde Frost
The Fourche Creek Treatment Plant in Little Rock, Arkansas, produces its own electricity. So the staff cannot afford to waste it. This 16 MGD plant runs two 800 horsepower generators powered by a combination of digester gas and purchased natural gas to supply all of their electrical needs.

New Chlorophyll Probe Enables Spot Sampling In Remote Areas   Water & Wastes Digest September 1999
Chlorophyll testing has long been a complicated and time consuming process. A new chlorophyll probe eliminates these problems.

DI-Polar Water Conditioning: Today’s Technology   Water Quality Products July 1999   Bill Herrera and Stephane Hersen
A savvy water treatment professional recognizes changes and reacts for reasons of market potential and, sometimes, just for basic survival. DI-Polar water conditioning is one such innovative response to the changes demanded both environmentally and economically, and not to be confused with magnets.

Membrane Filtration for Water and Wastewater   Water Quality Products February 1999
Membrane filtration, widely used in chemical and biotechnology processes, is already established as a valuable means of filtering and cleaning wastewater and industrial process water.

Innovative Equipment Design Helps Solve Bottling Problems   Water Quality Products February 1999
Unique needs of a Mexico-based water bottlers prompted the search for new equipment. A manufacutrer designed a system specifically to meet their needs.

Ozone Pilot Plant Design:Why Use Ozone?   Water Quality Products January 1999   Gabe Ergler, CWS-III
In this article, some of the many reasons ozone would be chosen over other oxidants such as chlorine are discussed. If you have a reason to apply ozone as part of your water treatment project, you may be required to conduct a pilot study prior to installation of the equipment.
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