The O-Zone: Today's Lesson: How Much is Enough?
Water Quality Products
July 2003
Roger Nathanson
This column will discuss two important topics regarding the use of ozone.
* Ozone dosages. How much ozone is "practical" for certain applications?
* Ozone air treatment. How ozone can be used in air treatment, what your liabilities are and precautions you should be taking.
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Bacterial Control with Ozone
Water Quality Products
July 2003
W. Craig Meyer and Partev B. Sarkissian, Pierce College
In the April 2001 issue of Water Quality Products,associates of TCET presented a new method using ozone to treat cooling tower water. Cooling Treatment Systems, Inc. (CTS) of Englewood, Colo., has adapted this method to produce a water treatment system it now is marketing for cooling towers. CTS submitted this new technology to TCET for testing. The results of these tests are presented here.
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The O-Zone: Today's Lesson: Ozonation of Cooling Towers
Water Quality Products
June 2003
Roger Nathanson
The objective of ozone use with cooling towers is to maintain the highest purity of water with the least amount of water waste and chemical use. Chemical use in cooling towers leads to ever-increasing total dissolved solids (TDS), which must be reduced by eliminating water (blow down/bleed off) and then refilling with raw/lower TDS water. This is a vicious circle that will never end unless one of the TDS-increasing culprits (a.k.a. chemicals) is eliminated or reduced.
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Ozone Treatment for Residential Well Water
Water Quality Products
June 2003
Myrle Melligan, Triple O Systems, Inc.
Your customers not only are expecting to have enough water supplied from their water source, but they also demand that it is of superior quality. Ozone's technology coupled with such treatment as filters or softeners can fulfill this expectation. Ozone does not need to be complicated in order to treat small water systems.
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Pool & Spa Disinfection
Water Quality Products
May 2003
Jeff Roseman, CWS-I, Aqua Ion Plus+ Technologies
This article will address the use of ozone, copper ionization and proper injection of chlorine for a reduced approach to chemicals in providing a clean, clear, healthy pool and spa experience.
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The O-Zone: Today's Lesson: To Dry or Not to Dry
Water Quality Products
May 2003
Roger Nathanson
Ozone is a gas made from oxygen. One of the processes used to produce ozone is called corona discharge (CD). The CD method is a combination of high voltage electricity and air, dry air or oxygen in a given space.
The efficiency of the ozone generator (ozonator) is based on the quality of the incoming feed gas.
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Nonchemical Alternatives to Cooling Tower Disinfection
Water Quality Products
April 2003
Jeff Roseman, CWS-I, Aqua Ion Plus+ Technologies
By explaining some tips and tricks, maybe more water treatment dealers can understand these technologies and use them in their arsenal of treatment methods. Filtration, ozonation, copper ionization and UV light may not be an option on some water supplies or applications, but their usefulness and alternatives to chemical dosing should be considered as an option.
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The O-Zone: Today's Lesson: Ozone Installation
Water Quality Products
February 2003
Roger Nathanson
The installation of ozone equipment on well applications utilizes the same principles and techniques as chlorinators, air injection and softener systems. There are only minor variations in sequence, parts and details.
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The O-Zone: Today's Lesson: Ozone and Bottled Water
Water Quality Products
October 2002
Roger Nathanson
The following is the first of 11 articles addressing ozone's
applications, installation, sales, service, basics and more. The 12th and final
installment will be a quiz to test your ozone knowledge—so make sure you
come back each month to brush up. Details and instructions will be given in the
final month.
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Back to the Basics, Part 3
Water Quality Products
July 2002
Jeff Roseman, CWS-1, Aqua Ion Plus+ Technologies
In this last section of a three-part series, the use of
ozone, ionization, distillation and aeration is discussed in a simple fashion
to help the beginner rationalize the importance for a full understanding of
these technologies and the need, again, for a professional water treatment
specialist.
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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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Threat of Water Supply Bioterrorism: Who Will It Impact?
Water & Wastes Digest
December 2001
Nikolai Pitchforth, Research Analyst, Environmental Group, U.S.
The tragic events of September 11th highlighted America’s vulnerability to terrorism and spurred an unprecedented domestic security response. Water treatment facilities were identified almost immediately as a potential target for further attacks and were urged by the FBI to implement security measures, most of which are still in place.
Water and Air UV Treatment
Water Quality Products
November 2001
By Bak Srikanth, Aquafine Corp., and David Witham, UltraViolet Devices, Inc.
UV is an accepted and rapidly growing technology for treating wastewater in the United States. In Europe, it commonly is used as a primary disinfectant in municipal drinking water systems. Other applications include food and beverage, pharmaceutical, semiconductor and power generation. This article will discuss three other commercially successful and growing applications.
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Editorial Emphasis
Water & Wastes Digest
November 2001
Oxygen-fed Ozone Generation Offers Advantages Over Ambient
Air
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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Reclaim Greenhouse Water
Water Quality Products
October 2001
Jeff Roseman, CWS, Aqua Ion Plus+ Technologies
Reclaiming water in the greenhouse industry will soon be something the government will be mandating the growers in the industry to do, as more wells are becoming contaminated from nitrates and phosphorus levels are becoming a concern for public health.
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Cooling Tower Solutions
Water Quality Products
April 2001
W. Craig Meyer, Pierce College
Recently, cooling towers have become recognized as a major source of Legionella infection. This fact has stimulated a growing number of lawsuits and it is expected that this trend will continue.
Bottled Water Makes Headlines
Water Quality Products
January 2001
Wendi Hope King
Recent news regarding the public?s fluoride intake and chromium 6 contamination has made for some alarming headlines. Though several past reports have concentrated on tap water, it is bottled water that is now becoming the current media target.
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An Overview of Ozone in Water, Wastewater Treatment
Water & Wastes Digest
November 2000
There are more than 2,000 installations worldwide that use ozone to treat drinking water. Ozone is an effective disinfectant for treating municipal and industrial wastewater, enabling the end user to meet EPA pre-treatment standards.
Well Water Treatment: Ozone Helps Solve Water Problems at Bassi Ranch
Water Quality Products
September 2000
Ted Rich
An analysis of the raw well water (Table 1) shows a pH of 7.9 and 30 color units with >20 mg/L hydrogen sulfide, 5.6 mg/L iron and 0.6 mg/L manganese. Odor was detected at 10 threshold odor number (TON), indicative of the high hydrogen sulfide levels. To meet these water problems head-on, the homeowners formed the Bassi Ranch Mutual Water Co. in 1992.
Considerations for POE Residential Ozone Treatment
Water Quality Products
February 2000
Gabe Ergler
Residential ozone systems are becoming more common as the preferred method to treat common water problems such as iron, manganese and hydrogen sulfide.
Ozone Generator Improves Cobb Area County Water Quality
Water Quality Products
November 1999
The Cobb Area County Water District of Middleton, Calif., achieved a major improvement in the district’s water quality by approximately 40 percent, from one of its major water sources—a well near one of its pumping stations.
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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