Staying Ahead of Our Changing Industry
Water Quality Products
March 2007
by Peter J. Censky
WQA Aquatech USA 2007 offers attendees valuable information and insight into the water treatment industry future
Laboratory Testing: Certification and sampling protocols
Water Quality Products
June 2005
By Marianne R. Metzger and Robert Ramnarine
A reputable laboratory should be able to help you determine what type of laboratory certification is required, if any, for the specific sample testing you are looking to have performed. Laboratories will typically provide all the sampling containers and collection instructions to ensure the accuracy of the sampling.
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Water Conservation
Water Quality Products
December 2004
Contributed by Savewater Alliance, Inc.
This short-term problem provided the groundwork for a whole new approach to water management at the resort.
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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Feasibility Study Proposes Inflatable Dam
Water Engineering & Management
November 2001
By Garnet Daus
>The Wyoming Valley (Pa.) Inflatable Dam Feasibility Study recently received a National Honor Award in the studies, research and consulting engineering services category at the ACEC Engineering Excellence Awards Competition. The annual event celebrates engineering achievements that demonstrate the highest degree of merit and ingenuity.
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Coping with Resistance to Copper/Silver Disinfection
Water Engineering & Management
November 2001
By W. Craig Meyer
Numerous facilities have invested in copper/silver disinfection systems to address the limits of traditional water treatment methods. It seems likely that, as bacterial populations develop resistance, many of these systems will become less effective through time.
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Biofouling in Raw Water Supply Wells and Its Impact
Water Engineering & Management
October 2001
Frederick Bloetscher, P.E., Gerhardt M. Witt, P.G. and Robert E. Fergan, P.E.
As membrane systems become more prominent in the treatment of well water supplies, more care must be taken to review the effects of microbiological contamination.
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August 2001 Editor's Desk
Water Engineering & Management
August 2001
Bill Swichtenberg
Water Matters! was the slogan of a rally dedicated to communicating the importance of safe and clean drinking water and securing support for promoting water issues with government leaders.
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Pipeline Rehab Survives the Elements
Water Engineering & Management
August 2001
Projects rarely are easy. However, throw in a remote site, steep siphon, a limited number of access points, harsh winter conditions and environmental concerns and you have a daunting project.
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New Water Meter Thrives in Harsh Environment
Water & Wastes Digest
July 2001
The Nevada desert: grit, dust, blazing hot sun by day and ground frosts by night. Just the place to stake out a water meter in an open pit and see how long it can last. That is what happened to a new SmartMeter -- with some revealing results.
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Duty Calls For Local Awareness
Water Quality Products
May 2001
Wendi Hope King
Editorial: May 6—12 is National Drinking Water Week (NDWW). It is our duty and opportunity as water professionals to make this week work for us by incorporating local companies, expertise and even the Water Quality Association (WQA) into NDWW.
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Design-Build Model Helps Home Developer Meet Demands
Water Engineering & Management
May 2001
Forty miles west of Chicago in a growing urban area, the village of Huntley is dealing with a typical growth issue. The problem is providing high-quality water and wastewater utilities to an ever-growing community quickly and cost-effectively.
Environmental Control Speeds Water Tank Project
Water Engineering & Management
April 2001
Concerns about expenses, deadlines and the environment all came into play when the Helix Water District near San Diego, Calif., had to recoat a four-million-gallon water storage tank.
Verification Testing: The First Step to Clean Water
Water Engineering & Management
April 2001
Gene C. Koontz, P.E., and Andrea L. Santa
Who is testing manufacturers’ purification systems and equipment? This article describes EPA’s Environmental Technology Verification Program.
Pumping Up Big John
Water Quality Products
April 2001
Metropolitan Industries
The John Hancock building, located on Chicago’s Magnificent Mile, needed to revamp its entire pumping and reservoir system without shutting off water to the building’s residents.
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Old Water Line Meets New Technology
Water Engineering & Management
March 2001
Tom Gigliotti
The City of Pittsburgh is in the process of a renaissance. Builders must raze the old to make way for the new. In the spring of 1997, the City of Pittsburgh imploded an old building in the center of the downtown shopping district and built the new Lazarus department store. The stores main entrance is located on 5th Avenue, Pittsburghs main retail street. Oliver Avenue, the street adjacent to the new building, is the location of the main water line feeding the new building as well as several adjoining structures.
The Stormwater Challenge
Water Quality Products
February 2001
Greg Gilles, Apyron Technologies, Inc.
Apyron Technologies, Inc., a material synthesis company in Atlanta, and Keystone Environmental, an environmental engineering consulting company in Vancouver, B.C., recently worked together to launch an arsenic remediation project for J.H. Baxter, one of the nation’s leading wood preservation companies.
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Innovative Odor Control -- A Good Neighbor Program
Water & Wastes Digest
February 2001
The Water and Wastewater Utility Department of the city of Austin, Texas, manages the operation of a regional sludge processing facility where they faced an odor problem. Working with a consultant, they purchased a fixed bed, iron oxide based odor control system from The SulfaTreat Company.
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Packed-Bed Ion Exchange Trains Create Water Treatment Efficiency
Water Engineering & Management
February 2001
Packed-bed ion exchange trains in a new demineralized (DI) water treatment system at the OxyVinyls, LP-managed multi-plant site in Pasadena, Texas, have keyed a dramatic gain in treatment efficiency for both boiler feed and process water.
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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Products At Work: Company Lowers Operating Costs with Predictive Maintenance
Water Engineering & Management
January 2001
When you have to ensure service to 4,000,000 customers, predictive maintenance is a must," said Michel Mercier, technical director of Syndicat des Eaux de I’Ile de France (SEDIF), the water treatment and distribution company serving major portions of Paris and suburbs.
Water Quality Deterioration in Distribution Systems: Part 3
Water Engineering & Management
January 2001
Thomas L. O’Connor and John T. O’Connor
This article summarizes studies directed at controlling microbial growths in distribution systems supplied by groundwaters containing ferrous ion and naturally occurring microbial nutrients.
Remote Water Treatment Process System Benefits
Water Engineering & Management
January 2001
Andy Harris
Conventional water treatment control systems often lack the ability to communicate all process parameters from a centralized location to the point of operation. Thus, standardized control of all the facilities within a water district is difficult. Process adjustments performed onsite may not conform to federal, state or municipal regulations for water quality control.
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Air Chamber Eliminates Water Distribution System Main Breaks
Water Engineering & Management
April 2000
Burr Ridge, Ill., has celebrated its fifth year of nearly eliminating main breaks in its water distribution system thanks to an innovative concept developed by a water superintendent who studied the problem for more than 20 years.
Desalination System Brings Water to Small Island Off Washington Coast
Water & Wastes Digest
February 2000
Off the coast of Washington, 32 families on Guemes Island were faced with an aging well that was drawing salt water into its system. Because groundwater is scarce on the island, residents had to rely on what little rain water soaks into the ground.
Open Channel Flow Reporting Improved and Streamlined
Water Engineering & Management
January 2000
FlowReporter programs can be adapted to operate with other microprocessor-based flowmeters provided the necessary technical specifications are supplied to accommodate such adaptations or program developments.
New Ductile Iron Check Valve Stops Water Hammer In Louisiana Municipality
Water & Wastes Digest
August 1999
After suffering years of water hammer problems and the resulting effect on maintenance personnel and equipment, the St. Charles Parish Municipality in Louisiana needed a product that would save them both time and money. Milliken Valve Company of Bethlehem, Pa., provided the answer.
Traveling Bridge Filter Problems Eliminated
Water & Wastes Digest
March 1999
Bethel Park, Pennsylvania installed two 4MGD traveling bridge filters in 1980. According to Joe Witkowski, who manages the facility, "We had serious media leakage with our old filters. We had continuous backwashing and mechanical problems - they just couldn't handle high flows. Plus, they had serious media leakage problems."
Filtration Process Restores Murky Pools
Water Engineering & Management
March 1999
Jim Jebbia and David Simon
One Hawaiian hotel was able to quickly fix a filter problem that was turning its tropical ponds into a milky and murky mess.
Flowmeter Helps Industry Measure Success
Water Engineering & Management
December 1998
Many industrial companies rely on accurate metering of the liquid they process through their plants. When the metering fails, so does the process. A paper mill in West Monroe, Louisiana, Riverwood International, discovered this a few years ago when operators found that existing flowmeters were unreliable.
Plunging into Protection
Water Engineering & Management
October 1998
Todd Hart
An innovative maintenance program maintained the aesthetic and functional appeal of one of the community's tallest structures.
Generating Chlorine Dioxide Gas:Chlorate vs. Chlorite
Water Engineering & Management
September 1998
Douglas Rittmann, P.E. and Joel Tenney
Is a new method of generating chlorine dioxide gas using sodium chlorate more effective than the typical sodium chlorite system?
Large Anthracite Media Does the Job
Water & Wastes Digest
September 1998
Bill Scully
Tertiary Filtration Piloting conducted at two different WWTPs demonstrate improved performance of large anthracite media compared to dual and single sand media filtration.
Lead-Based Paint Removal Presents Challenges
Water Engineering & Management
February 1998
Blake Elliott, Peter Zanoni, Ed Ralle and Brad Fuller
Shrouded power tool technology efficiently removes paint without the health concerns and high disposal cost of abrasive blasting.
New Coating Technology Protects Underground Steel Tanks
Water & Wastes Digest
January 1998
Highland Tank, one of the founders of the Steel Tank Institute and a leading producer of underground protected steel storage tanks, has developed a new innovation in protective coating technology.
Filter Media Rids Iron from Groundwater
Water Engineering & Management
December 1997
Yun H. Zhang
The most common process for iron removal from water is to allow water-soluble ferrous iron (FE2+) in water to turn into water-insoluble ferric iron (Fe3+), and then capture FeIII (iron oxide) particles by filtration.
The Effect of Nitrification on Sampling Sites
Water Engineering & Management
November 1997
Shin-Ichi Tokuno and Floyd Baker
This article reports on chloramine dissipation with regard to nitrification and how it affects the CT value in plant operation
Inbound Technology and Wireless AMR
Water Engineering & Management
September 1997
Larry Sears
With their wireless installation and better efficiency, automatic meter reading systems are destined to become a neccessity.
Recovering the Costs of Water-Supply Cleanup
Water Engineering & Management
September 1997
David Terry
Recovering contaminants caused by industry from public water-supply wells can be expensive, but there are ways water suppliers can recoup all or part of these costs.
Understanding and Solving Fracture Flow Problems
Water Engineering & Management
September 1997
Dr. Thomas Doe
This article compares fracture flow with flow in more conventional porous systems and suggests solutions to fracture flow problems.
How to Select the Right Groundwater Sampler
Water & Wastes Digest
September 1997
Before selecting a sampler, all of the particulars in the project must be considered to determine which pump is most suitable. In some applications, custom units may be designed for specialized uses.
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