Commercial Drinking Water Systems
Water Quality Products
July 2005
Adam Donnellan
When designing a commercial drinking water system using ultraviolet (UV) light for disinfection, you will need to know the local regulations, how to determine flow rates, what options may be required and whether you need pre-treatment.
When speaking about commercial establishments, I am referring to restaurants, daycare centers, schools, hospitals, parks and other entities that serve the public.
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UV Disinfection Part II
Water Quality Products
June 2005
Jeff Roseman
Part II of this article covers theoretical calculations of UV transmission rates based on various fluoropolymers and quartz. The article will evaluate bulb protection material costs and review different applications.
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Part I: UV Disinfection
Water Quality Products
May 2005
By Jeff Roseman
All the varying parameters must be analyzed in order to properly design a system that will work effectively on a multitude of water sources and applications, whether the source water is fresh or waste.
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Navigating Changing Feedwater Conditions
Water Quality Products
March 2004
Contributed by Crane Environmental
Crane Environmental installed a reverse osmosis unit to supply clean feedwater to boiler units for electricity at a resource recovery plant.
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'Out of the Box'
Water Quality Products
December 2003
Carla Fisher and Gregory C. Gilles, AdEdge Technologies
Emerging commercial technologies are replacing the "old standards" for small water system (SWS) applications. In contrast to large community systems, competitive economics, simple operation and low waste production will drive changes in technology and engineering. Some out-of-the-box thinking will be necessary in the shift to provide simpler, packaged or preengineered arsenic treatment systems.
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Changing the Face of Ultraviolet
Water Quality Products
December 2003
Jeff Roseman, Aqua Ion Plus+ Technologies
Coiled tubes that enable longer contact times and have excellent UV light transmission, versatility in application and a compact system de sign will revolutionize the UV light arena of water treatment . This method of UV light transfer in applications such as drinking water, icemakers, beverage dispensers, water coolers and aquaculture make the task of changing the tube that protects the UV bulb safer and less costly to the consumer.
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Equipment Leasing
Water Quality Products
October 2003
Barry Siedell, Norland International, Inc.
Leasing makes possible a pay-as-you-go option for companies needing to add full-line bottling systems.
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Lincoln Memorial Avoids Flooding With Stormwater Engineering Software
Water & Wastes Digest
February 2003
The Lincoln Memorial in Washington, D.C., attracts millions of visitors each year and is one the most high profile landmarks in the United States. When it came time to rehabilitate the surrounding stormwater system, StormCAD® was the choice for CH2M Hill and the Eastern Federal Lands Highway Division of the United States Department of Transportation (USDOT).
The Five Most Common Mistakes When Specifying Valves
Water & Wastes Digest
October 2002
Andy Ryan
Some mistakes are the result of a malfunctioning valve ... or so it seems. In reality, the valve probably functioned as it was intended, but was specified improperly. No other component exerts as much control over a piping system -- yet so little time is spent specifying and understanding the humble valve. With a little effort and a few simple questions, you can avoid a lot of the heartaches, such as the top five mistakes.
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