Filter Provides Legionella Barrier for Hospitals   Water Quality Products November 2003
Point-of-use units are increasingly gaining acceptance in such applications as hospitals and nursing homes. This technology allows these facilities to produce high-quality water as needed at a lower cost.
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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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E. Coli   Water Quality Products May 2003   Danielle Duclos
This article provides a general overview of E. coli and drinking water as well as current and emerging monitoring and decontamination technologies.
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George Warren Fuller, Industry Pioneer   Water Engineering & Management May 2003   Bill Swichtenberg
The George Warren Fuller Award is presented annually to one member of each section of the American Water Works Association (AWWA). It is based on recommendations from the sections for distinguished service in the water supply field and "in commemoration of the sound engineering skill, the brilliant diplomatic talent and constructive leadership talent" that characterized Fuller's life.
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A New Option in Valve Actuators Strengthens Control of Filtering Operations   Water Engineering & Management January 2003
Water works engineers are now turning to a new generation of pneumatic valve actuators that are capable of executing the instructions of electronic control systems with the necessary precision to accurately control effluent flow. Surprisingly simple but rugged in construction, this new breed of actuators also is meeting the need to reduce downtime, as some of the first ones to debut in 1981 are still in operation without needing a spare (new) part.
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Dried Up: Raisin Producer's New Process Cuts Wastewater and Odors   Water Engineering & Management January 2003   David Pearson
Thanks to a new membrane filtration system, National Raisin Company, Fowler, Calif., not only has been able to cut its wastewater costs, but it also has opened up a potentially lucrative source of additional income.
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ETV Testing Verifies Membrane Filtration Plant Treats Surface Water, Meets D/DBP Rule   Water Quality Products December 2002   PCI Membrane Systems, Inc.
A study published as part of the EPA's Environmental Technology Verification (ETV) Program verifies the performance of a Fyne Process membrane filtration plant tested on high organic-laden surface water in Barrow, Ark. The plant was able to remove significant levels of organics--precursors to disinfection byproducts such as trihalomethanes (THM) and haloacetic acids (HAA)--producing water that easily met the disinfection byproduct standards set by the EPA's stringent Stage 1 D/DBP Rule.
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Stormwater Treatment: A Look at Various Methods, Hydrodynamic Separators   Water & Wastes Digest July 2002
Since the passing of the Clean Water Act, the industry has made great strides in improving the quality of point source discharges to the environment. As treatment technologies continue to improve, non-point source pollution becomes a more significant contributor to environmental degradation.

Small Site Dictates Stormwater Treatment Solution in Mich. Redevelopment   Water & Wastes Digest July 2002
Ann Arbor, a densely populated university town of 180,000, has been seeing an increase in urban redevelopment pressure in recent years as developable land has become scarce and land values have risen. The city of Ann Arbor has worked closely with the County Drain Commissioner’s office to use this redevelopment as an opportunity to improve the quality of stormwater flowing into the county drains.

Membranes: Fouling & Cleaning   Water Quality Products May 2002   Bjarne Nicolaisen
Membrane technology offers the possibility of managing total water resources. The spiral wound membrane element configuration is the most widely used due to its high packing density and relatively low price. This article will describe some technological advances in the area of innovative new membranes and application concepts for spiral wound membrane elements.
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Making the Filtration Buying Process Easier for Your Customers   Water Quality Products March 2002   By David M. Marsh
If you’ve seen it once, you’ve seen it a hundred times—customers who come to you looking for a home filtration system, unaware of what their specific needs are. While many consumers simply want a system that improves their water’s taste and aesthetic qualities, the majority are looking for a product that will make their water healthier. But as you know, “healthier” is a subjective term, and without knowing the issues that are present in the customer’s water, providing them with a system that fits their needs isn’t very easy to do.

Production of High Purity Water From Seawater   Water Quality Products March 2002   Contributed by Ted Prato, Erik Schoepke, Lance Etchison, Tom O’Brien, Brian Hernon and Kit Perry, I
The Diablo Canyon Power Plant at Avila Beach in California utilizes seawater for both cooling water and makeup water for steam generation. Ionics, Inc., Watertown, Mass., designed and built and now operates a complete water treatment system serving the high-purity water needs of this power plant. Over the past eight years, the seawater treatment section has demonstrated excellent long-term performance as a result of strong design, consistent maintenance and qualified operators.

RO Maintenance   Water Quality Products January 2002   Nevin Rudie
Understanding and reacting to the performance of a reverse osmosis (RO) system is necessary for continued successful operation. It is this interaction that allows us to quickly and correctly identify and correct issues that may arise.
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Biofilm Elements Treat Colorado Town   Water Engineering & Management January 2002
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Bioterrorism May Pose Threat to Water Supplies   Water Quality Products December 2001   Wendi Hope King
If our water supplies actually do come under attack, the question remains: Is there any way for consumers to protect themselves? Unfortunately, it seems to be too early to tell, yet some companies are beginning to emerge with products that may be the answer.
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Advanced Treatment for Groundwater: Treating Low-Quality Groundwater for Municipal Use   Water Engineering & Management November 2001   By Ralph Gelvin, P.E., and Don Novak, P.E.
Groundwater sources that can be used for drinking water purposes are requiring increasing degrees of treatment to meet the requirements of both the regulating agencies and the consumer.
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Process Effectively Strips Hydrogen Sulfide Gas from Wastewater   Water Engineering & Management November 2001
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Controlling Mechanisms of Contaminant Ion Leakage in Condensate Polishing Systems   Water Quality Products September 2001   Stephen W. Najmy, The Dow Chemical Co.
Extracting the maximum benefit from condensate polishing systems continues to be a top priority among many electric utility plants. With cost reduction pressures and increasing water quality standards, owners and operators continue to evaluate the resin handling procedures that affect corrosion product transport and contaminant ion impurity levels.
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Editorial Emphasis: Wastewater Treatment   Water & Wastes Digest September 2001   Infiltrator Systems Inc.
Exfiltration System Uses Distribution Chambers To Protect Sensitive Lake Erie

Evaluation of the Use of Crushed Recycled Glass as a Filter Medium: Part 2   Water Engineering & Management August 2001   Richard W. Elliott, P.E.
Performance studies show that crushed recycled glass can provide capital and annual cost savings over traditional sand filter media.
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Evaluation of the Use of Crushed Recycled Glass as a Filter Medium: Part 1   Water Engineering & Management July 2001   Richard W. Elliott, P.E.
When compared with traditional sand filter media, crushed recycled glass can provide significant capital and annual cost savings.
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How to Remove Emulsified Oil from Wastewater with Organoclays   Water Engineering & Management July 2001   George R. Alther
This article defines what organoclays are and details how they are being used to remove oil and grease from wastewater.
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A Leading Team   Water Quality Products March 2001   Wendi Hope King, WQP Staff
After nine months of silence, the Osmonics team emerges renewed and ready for a future full of success.
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Reverse Osmosis Membranes Help Conserve Water At the Sydney 2000 Olympic Games   Water & Wastes Digest March 2001   WWD Staff
During the 2000 Olympic Games, U.S. Filter Australia/Vivendi Water supplied a wastewater reclamation plant that recycled sewage and rainwater runoff at the games site. Part of the purification process involved the use of reverse osmosis (RO) technology.
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Water Reuse for Drought-proof Industrial Water Supply in San Diego   Water & Wastes Digest November 2000
A 200,000 gallon per day (gpd) advanced microfiltration system treats secondary wastewater effluent for reuse as process water for Toppan Electronics, Inc. in San Diego, Calif.

Pennsylvania Filtration Plant Helps Meet NPDES Discharge Requirements   Water & Wastes Digest October 2000
In the early 1990s, the Milford-Trumbauersville Area Sewer Authority in Bucks County, Pennsylvania, recognized the need to upgrade the existing sewage treatment plant. This was necessary to increase capacity and to meet future more stringent requirements set by the Pennsylvania Department of Environmental Protection for Unami Creek.

Legionella: Minimizing Risks   Water Engineering & Management August 2000   W. Craig Meyer
Legionellosis, the disease caused by Legionella spc., is common, though most people would guess it is extremely rare. Outbreaks of Legionellosis, defined as a cluster of three or more cases in a single locale, occur regularly in the United States and much of the developed world.

Nuclear Power Plants Crosslinked Resin Ion Exchange System Provdes the Right Reactor Water Chemistry   Water Quality Products July 2000   James Stahlbush and Stephen Najmy
In the nuclear power industry, finding an ion exchange system that provides the right feedwater and reactor water chemistry is a delicate balancing act. That?s why engineers at Niagara Mohawk?s Nine Mile Nuclear Power Station?Unit Two, a boiling water reactor with deep-bed condensate polishers in central New York, turned to The Dow Chemical Co. for help in meeting stringent industry guidelines for feedwater iron.

Ceramic Filters: The Fight Against Bacteria, Viruses and Protozoa   Water Quality Products April 2000   David Webb
How can someone protect himself from consuming water contaminated with Cryptosporidium or other microorganisms? One durable and competitively priced option is ceramic filters.

Alternative Technology Filtration Plant Based on California Department Regulations   Water Engineering & Management September 1998   David Pafundi and Paul Berry
Faced with exorbitant costs for conventional filtration treatment, one California city tried an alternative technology.

Three Basic Steps for Problem Water   Water Quality Products July 1997   by Robert E. Morgan and Scott Crawford
You, too, can be a hero in your area by successfully treating problem water. Yes, you will have homework and the job may not be as easy as other water conditions in your area, but you will be rewarded not only in accomplishment, but in future sales as other customers learn of your success.