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
Switch-Mode Success
Water & Wastes Digest
May 2008
By Mel Berman
Advances in power supplies for automated electrochemical mini-plants
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
Using UV for dechlorination
Water & Wastes Digest
November 2007
By Jon McClean
UV proves to be an effective dechlorination technique without drawbacks
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
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.
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
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
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
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.
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.
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.
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.
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