Ready for Reuse   Water & Wastes Digest July 2008   By Anthony Galvan
Multibarrier package treatment systems serve nonpotable municipal requirements
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Upgrade Undertaking   Water & Wastes Digest May 2008   By Neda Simeonova
How one city handles plant improvements and funding challenges to comply with new regulations and meet future water needs
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Switch-Mode Success   Water & Wastes Digest May 2008   By Mel Berman
Advances in power supplies for automated electrochemical mini-plants
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A Landmark Improvement Project   Water & Wastes Digest May 2008   By Rebecca Wilhelm
The city of San Diego takes a phased approach to improving its historic Alvarado Water Treatment Plant
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Revitalizing the Feng-Shan Reservoir   Water & Wastes Digest April 2008   By Robert Laing
Using a reservoir-diffused aeration destratification system in Taiwan to control blue-green algae
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LCWA Solves growing drinking water needs   Water & Wastes Digest April 2008   By Dean W. Potratz
Company constructs design-build water treatment plant for water authority
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Using UV for dechlorination   Water & Wastes Digest November 2007   By Jon McClean
UV proves to be an effective dechlorination technique without drawbacks

Tap Water: From Best to Far from Perfect   Water & Wastes Digest October 2007   By Neda Simeonova

Georgia On My Mind   Water & Wastes Digest July 2007   By Tim Gregorski
The Tussahaw Reservoir and Water Treatment Facility opens to serve a fast growing community and a drought-stricken state
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Plant Profile: Treatment with a Touch of Class   Water & Wastes Digest February 2007   By Tim Gregorski
Scottsdale, Ariz.’s Chaparral Water Treatment Plant incorporates membrane filtration technology following the proven performance of membranes at the nearby Scottsdale Water Campus.

Helping Mother Nature   Water & Wastes Digest November 2006   By Evelyn M. Scibelli
East Shoshone County, Idaho, incorporates membrane water treatment system to reduce turbidity and increase drinking water quality

New UV Treatment Systems Improve Water Quality   Water & Wastes Digest November 2006   By Bill Harvey
Kelowna, B.C., completes water treatment facilities

Superior Water Quality   Water & Wastes Digest November 2006   Amy Osgood
Water & Wastes Digest asked David L. Brown, president of the American Membrane Technology Association and director of utilities for Jupiter, Fla., to discuss Jupiter’s pioneering and award-winning water utility, as well as the role membrane technology will play in addressing future water issues.

South Bend Addresses Iron & Manganese   Water & Wastes Digest October 2006   By Leo Zappa
Indiana company discovers a new way to remove iron & manganese from drinking water

Drinking Water Regulatory Update   Water & Wastes Digest September 2006   By Jessica Moorman
Understanding the LT2 rule and Stage 2 DBP rule

A Viable Option for Water Utilities   Water & Wastes Digest May 2006   By Bill Fehrman
Chloramination of drinking water increases as pressure feed systems offer new advantages

World’s Second Largest Potable UF Plant Begins Production   Water & Wastes Digest May 2006   By Chad Hill and Jonathan Pressdee
Membrane filtration plant will provide Minneapolis residents high-quality water for years to come

Alternative Solutions for a Sustainable Future   Membrane Technology March 2006   By Mark W. LeChevallier, Ph.D.
Membrane filtration applications provide sustainable water managementBy Mark W. LeChevallier, Ph.D.

Dissolved Air Flotation   Membrane Technology March 2006   By James E. Farmerie
DAF system proves effective in membrane pretreatment

Port Hope’s Dream Comes True   Water & Wastes Digest February 2006   By Tim Gregorski
Small community home to new water treatment plant that can expand along with population

Pipes Solve Potable Water Problems   Water & Wastes Digest February 2006   Philip R. Snyder
South San Joaquin Water Treatment Plant opts for direct bury installation for potable water pipes

Phoenix Rising   Water & Wastes Digest January 2006   By John Quarendon
Arizona’s Lake Pleasant Water Treatment Plant, the largest DBO water project in North America expected to come online full-time in fall of 2006

A Nod to Port Hope   Water & Wastes Digest January 2006   Tim Gregorski

Follow the footprint   Water & Wastes Digest November 2005   Michael Norton
Kennewick, Wash., water treatment plant doubles capacity following membrane retrofit

Top Hats Prove Effective   Water & Wastes Digest November 2005   Andrew Barr, P.E.
Plant maintains production during UV installation with innovative construction tie-in detail

Trends in Drinking Water Treatment   Water & Wastes Digest November 2005   By Philip J. Brandhuber, Ph.D.
Needs spur the development of new water treatment technologies that may be more effective, less costly

Examining the Latest Technology in Nutrient Analysis & Monitoring Systems   Water & Wastes Digest November 2005   By Mohamed Aboul Eish and Robert Clifford
A solution for better treatment at water and wastewater utilities

Mile High Membranes   Water & Wastes Digest November 2005   By Tim Gregorski
WWD talks with Bud Hart, water supply, treatment and quality manager at the Columbine (Colo.) Water Treatment Plant about the results of their membrane-related upgrades

MBR Package Plant Offers Environmental, Economic Benefits   Membrane Technology November 2005   By Chris Plott & Teresa Sullivan
Affordable and rapid retrofit of existing wastewater treatment plant ends sewer moratorium in Tennessee community

A Model for Muni Treatment of Surface Water   Membrane Technology November 2005
As the first plant in the U.S. to combine the Actiflo pretreatment with the KMS ultra- filtration membranes, Cass County’s Public Water Supply District #7 serves as a model for municipal treatment of surface water.

Membranes Offer Water Plant Flexibility   Membrane Technology November 2005   Lisa Sorgini
Submerged membrane system doubles Kennewick plant’s capacity

Advantages of Pressure MF Systems Over Vacuum Systems   Membrane Technology November 2005
Today, the value of the U.S. membrane market is more than $2 billion & growing at a rate of 8% per year.

Membranes Tailored as Needed   Membrane Technology November 2005   Warren Casey

How to Handle Membrane Reject Water   Membrane Technology November 2005   Van Kile and Susie Kippenberger

Blue Plains Tour in Black & White   Water & Wastes Digest October 2005   Tim Gregorski
Unable to visit the D.C. Water & Sewer Authority’s, Blue Plains Advanced Wastewater Treatment Facility while at WEFTEC.05? Water & Wastes Digest offers this profile of the Blue Plains plant, including current upgrade projects, sans the $40 price of admission.

Set it & Forget it   Water & Wastes Digest August 2005   By Bob Elliott
Keeping the environment clean is a top priority for the authority. Wastewater is processed biologically, with none of the chemicals that are typically used, and achieves complete nitrogen removal. Specifically, the process removes CBOD, suspended solids, ammonia as nitrogen, nitrates, nitrites and phosphorus.

In a League of its Own   Water & Wastes Digest July 2005   07/05/05
The design and aesthetic features of the plant are what overcame any NIMBY objections,” Nespeca said.

In Control & Beyond Expectations   Water & Wastes Digest July 2005   By William F. Verona and Robert Rumelfanger
“This system has been operating beyond expectations,” commented Philip D’Angelo of JoDAN, “The treated water is well within the compliance limits mandated by the utility’s discharge limits, at only a fraction of the cost previously observed.

Industry Insider: Improving the Industry   Water & Wastes Digest May 2005
Involved in numerous water quality and wastewater projects, James Clark a vice president and senior project manager at Black & Veatch, envisions what it takes for our industry to continue to be effective

Just Another Day at the Beach   Water & Wastes Digest May 2005   By Don Richard
Together, these systems were insufficient for near-term demand and they fell far short of the projected future needs for this fast-growing community.

Wisconsin Shaping Water Treatment   Water & Wastes Digest May 2005   By Tom Bunker, Mark White and Scott Lenhardt
Racine WTP opted for membranes because of their ability to provide an extra barrier against waterborne pathogens to the 110,000 people served by the plant.

A Strategy for Optimizing Water Treatment Plant Performance Using Light Scatter Technologies   WWDmag.com January-December 2005   Mike Sadar
This study hypothesizes that filter backwash cycles that are consistently monitored to a set turbidity value will correlate to a high performance filter run. If this is indeed true, the process will save the plant time and money. The costs and benefits of using laser nephelometers will be summarized in this study.
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Controlling Micro-Organisms   Water & Wastes Digest December 2004   By Ivars Jaunakais
This article deals with the control of microorganisms by disinfection with chlorine and DPD chlorine testing.

Measuring Chlorine Disinfection   Water & Wastes Digest December 2004   By Frank Kaiser and Bill Fehrman
This disinfectant is used by more than 90% of the drinking water plants in the U.S., and more than 200 million Americans and Canadians receive chlorine-disinfected drinking water every day.

Beyond Pumping   Water & Wastes Digest December 2004   By Michael Moreau
Is there a solution, besides pumping or other current bacterial or chemical remedies, that offers the system owner real relief without having to resort to system replacement?

Mission Possible   Water & Wastes Digest October 2004   By Megan Larson
When the conditions are right, the Struvite will rapidly form crystals that spread throughout a pipeline forming a concrete-like crust.

Wastewater Treatment for Unserviced Land Development   Water & Wastes Digest October 2004   By James Hotchkies
Residential, industrial, or recreational construction on non-sewered land frequently raises many questions about the most reliable and cost-effective strategy for managing the future wastewater stream.

A Combination Deal   Water & Wastes Digest October 2004
Fountain Hills combines cloth media filtration and membrane system to get quality effluent

The Evolution of Low-Pressure, Immersed Membrane Technology   Membrane Technology October 2004   by T. David Chinn, P.E.
Today, after nearly 25 years of championing the innovation and evolution of low-pressure, immersed membrane technology, ZENON continues to be a leader in this rapidly growing and dynamic market.

Addressing Membrane FAQs   Membrane Technology October 2004   by Karen Decampli
With this growth and discovery stems questions about specific uses and maintenance.

Membranes Meet Total Water Treatment Needs for Growing City   Membrane Technology October 2004   by Tom Foley
After more than two decades of outsourcing its wastewater treatment, city officials in American Canyon began to consider constructing plant of their own.

Science Applied to Optimize Membrane Treatment   Membrane Technology October 2004   by Paul Dittman
CWS hired Black & Veatch (B&V) to evaluate a treatment system to process 20 MGD of water from the Kern River for the city of Bakersfield. B&V selected a treatment system that uses coagulation and sedimentation with ferric chloride as coagulant.

Ten Things You Need to Know   Membrane Technology October 2004   by Charles Liu, Ph.D., P.E., DEE
The removal credit for any membrane system can be only granted as it can be verified by integrity testing.

UF Pretreatment for RO Systems   Membrane Technology October 2004   By John McArdle, Antonia von Gottberg, Ben Antrim and Dawn Halpern
Because of the increasing awareness of the need for adequate pretreatment, there has been significant interest in UF as pretreatment for RO for municipal applications in brackish and seawater desalination plants.

Trouble-Free Operation   Membrane Technology October 2004   By James J. Vecchio and Antonia von Gottberg
Manganese was present in the water at 0.70 mg/l, and iron concentrations were around 0.30 mg/l.

Membranes Offer Flexible & Economical Water Treatment Options   Membrane Technology October 2004   by Stratton Tragellis and Ed Jordan
Innovative and highly adaptable membrane technologies are discussed in the following case studies

Providing a One-Two Punch   Water & Wastes Digest September 2004   Lianna Mah
The Oakville plant treats 109 million liters per day of water from Lake Ontario.

Membrane Filtration Aids Spring Water Clean-up   Water & Wastes Digest May 2004
“It was cost-effective, modular to fit our limited area, had a quiet backwash and filtered prechlorinated water.”

On the Contrary   Water & Wastes Digest November 2003   Keith Bircher and Walter Tramposch, Ph.D.
Since 1993, increased and more stringent water treatment rules by the U.S. EPA have intensified the need for a comprehensive, cost-effective solution to treat Cryptosporidium, Giardia and other waterborne pathogens in drinking water. The solution was not chlorine.

Finding a Sweet Result   Water & Wastes Digest October 2003   David Pearson
A new membrane filtration system manufactured by PCI Membrane Systems, Inc. allowed National Raisin Co. of Fowler, Calif., to not only cut their wastewater costs, but they have also opened up a potentially lucrative source of income.

Silent Treatment   Water & Wastes Digest October 2003   Megan Rapaduski
Michael Goltz, superintendent of the Mt. Horeb, Wis., Wastewater Treatment Plant, settled on the Val-Matic Swing Check Valve because it specifically addressed the slamming and clogging problems exhibited by the previous swing check valves.

Peace of Mind   Water & Wastes Digest October 2003   Frank Kaiser
Under the Bioterrorism Preparedness and Response Act, all emergency response plans, at a minimum, should include plans, procedures, and identification of equipment that can be implemented or used in the event of an intentional attack on a water treatment system. One fast-testing method for evaluating water pollution is Severn Trent Services' Eclox Rapid Response Water Test Kit, which uses chemiluminescence, which is used to measure the amount of light generated when a water sample is combined with reagents.

Water Treatment: Thinking Small   Water & Wastes Digest May 2003   Richard Merwin
As populations grow, as urban, suburban and ex-urban areas expand, demand for water increases and safety standards rise. An effective and creative way to deal with problems of growth and resource management might just be to think small. A case in point is the Olivenhain Municipal Water District's (OMWD) treatment facility in San Diego County, California.

Greensand Process Removes Iron, Manganese, Arsenic from Groundwater   Water & Wastes Digest March 2003
Manganese greensand is a specially processed medium for iron, manganese, and hydrogen sulphide removal. This premium non-proprietary filter medium is processed from glauconitic greensand on which a shiny, hard finite thickness manganese oxide coating is formed and is firmly attached on every grain by a controlled process.

Australian Microfiltration System is World's Largest For Potable Water Treatment   Water & Wastes Digest November 2002
The AQUA 2000 Project is a build-own-operate-transfer (BOOT) project, delivered and operated by Vivendi Water Australia. It includes the construction and operation for 25 years of a water treatment scheme for the Coliban Water Authority in Victoria, located in southeastern Australia.

Mississippi Town Installs Nation's First RO/Ozone System   Water & Wastes Digest November 2002
The City of Pascagoula, Mississippi turned to Osmonics of Minnetonka, Minn., to provide a viable solution for the removal of undesired characteristics from their water supply, ensuring compliance with existing and 2001 EPA regulations. Osmonics' process of combining low energy RO in tandem with ozone generation and contacting equipment proved to be the optimal solution to Pascagoula's water deficiencies.

Filter Housing Design Fits Height, Seismic Stress Needs   Water & Wastes Digest November 2002
Occasionally, height is an issue in a filtration system's housing design. A few years ago, Eden Equipment Company of Huntington Beach, Calif., was approached by a client with just this issue. Due to the client's specific requirements for their system, Eden's original ideas and drawings for this horizontal vessel needed to be redesigned. In addition to the height restrictions on their system, they also needed a design that could withstand a Seismic Zone 4 earthquake.

Packaged Treatment Plant Treats Tough Water Supplies Consistently, Economically   Water & Wastes Digest May 2002   Darin St. Germain
Since the 1960s, municipalities and industries have used packaged water treatment plants to successfully and economically treat small water supplies. These packaged plants have offered a smaller footprint, lower capital cost and easy operation.

Increased Treatment Security, Process Optimization Through Improved Monitoring Techniques   Water & Wastes Digest May 2002   Robert L. Bryant
Recent implementation of the Long Term 1 Enhanced Surface Water Treatment Rule (LT1ESWTR) has increased potable water sampling and analysis requirements for an additional 11,000 treatment plants serving more than 18 million Americans.