Advanced Treatment for Groundwater: Treating Low-Quality Groundwater for Municipal Use

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.

Deck: 

Disinfection

About The Author: 

Ralph Gelvin, P.E., is a senior engineer with Burns & McDonnell.
Don Novak, P.E., is a project manager with Burns & McDonnell.

Activation Date: 
November 13, 2001
Legacy
Legacy ID: 
12769

Coping with Resistance to Copper/Silver Disinfection

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.

Deck: 

Biocides

About The Author: 

W. Craig Meyer is a professor of environmental science at Pierce College in Woodland Hills, Calif.

Activation Date: 
November 13, 2001
Legacy
Legacy ID: 
12768

Water and Air UV Treatment

UV is an accepted and rapidly growing technology for treating wastewater in the United States. In Europe, it commonly is used as a primary disinfectant in municipal drinking water systems. Other applications include food and beverage, pharmaceutical, semiconductor and power generation. This article will discuss three other commercially successful and growing applications.

Deck: 

Successful Ultraviolet for Commercial Applications

About The Author: 

Bak Srikanth is manager of applications and project proposals at Aquafine Corp. He has been with Aquafine since 1994, where he previously was senior applications engineer. He manages all applications engineering, process R&D and capital project proposal functions. He has several years of work experience in the water treatment and purification industry. He may be reached at 800-423-3015, ext. 651; Bak@AquafineUV.com.
David Witham is vice president of new technology at UltraViolet Devices, Inc. where he has been since 1996. Previously, he was director of engineering. He is responsible for developing UV technology, intellectual property and new business opportunities. Witham has spent a large portion of the last three years in developing the application of UV in indoor air as well as special water applications and the development of modeling and software to assist in UV dosing and system design. He may be reached at 661-295-8140; davew@uvdi.com.

Activation Date: 
November 9, 2001
Files: 
Issue Reference: 
Legacy
Legacy ID: 
12760

Natural Bacteria Treat Pollution at Industrial Sites

An environmental consulting firm used bacteria found naturally in soil to treat toxic substances located in contaminated industrial sites.

Deck: 

Products at Work

Activation Date: 
October 19, 2001
Files: 
Legacy
Legacy ID: 
12712

Reclaim Greenhouse Water

Reclaiming water in the greenhouse industry will soon be something the government will be mandating the growers in the industry to do, as more wells are becoming contaminated from nitrates and phosphorus levels are becoming a concern for public health.

Deck: 

Copper Ionization, Ozone Provide Effective Pythium Treatment

About The Author: 

Jeff Roseman is a CWS-I with the Water Quality Association. He is the owner of Aqua Ion Plus+ Technologies and has designed and developed ionization and ozone systems for use in the greenhouse and agriculture industries. With a background in chemistry and physics from studies at Purdue University in electrical engineering, he is poised and ready to help the industry find methods to control pathogens and disease. For more information he can be reached at jeff@aquaionplus.com. More information is available at www.aquaionplus.com.

Activation Date: 
October 12, 2001
Legacy
Legacy ID: 
12699

Ozone for Bottled Water

The proliferation of bottled beverages worldwide and an increased awareness of consumer health issues have beverage suppliers rethinking how to keep their liquids safe for consumption.

Deck: 

Advances in Ozone Generation Technology Yield Big Benefits for Bottled Water Industry

About The Author: 

Andrew Zaske is the market manager of standard products and components and Aaron Edland is an application engineer for Osmonics, Inc.

Activation Date: 
October 12, 2001
Files: 
Legacy
Legacy ID: 
12697

Troubleshooting Bottled Water Complaints

Customer complaints are an unfortunate but unavoidable part of business. Bottled water complaints typically arise when a customer perceives an off taste, odor or appearance in the water.

About The Author: 

Barbara L. Marteney and Kristin M. Safran, of National Testing Laboratories, Ltd., specialize in consulting with bottled water companies regarding testing requirements. They maintain contacts with bottled water regulators, industry associations, and the FDA regarding regulatory changes and bottled water issues. They have authored numerous articles and given presentations regarding state, federal and international bottled water regulations.
Marteney and Safran can be reached by phone at 800-458-3330 or 440-449-2525. Marteney at extension 217 and Safran at extension 215. E-mail food-bev@watercheck.com

Activation Date: 
October 12, 2001
Files: 
Legacy
Legacy ID: 
12695

Controlling Nitrification in a Water Distribution System Using Sodium Chlorite

Engineers set out to discover whether the direct addition of sodium chlorite to a water stream might be an effective nitrification control process.

Deck: 

Water Treatment

About The Author: 

Thomas L. O’Connor, BSEE, MBA, is project director, H2O’C Engineering, Columbia, Mo. e-mail: Tom@h2oc.com
 
Bart Murphy, BSCE, is superintendent of Water, Willmar (Minn.) Municipal Utilities.
 
John T. O’Connor, EngD, PE, is principal, H2O’C Engineering, Columbia, Mo. Phone: 877-22-WATER; e-mail: John@h2oc.com.
 

Activation Date: 
September 21, 2001
Legacy
Legacy ID: 
12646

High-tech: Samplers

New Analyzer Offers Continuous Measurement, Dual Stream Sample

About The Author: 

For further information, phone Hach Company at 800-227-4224.

Activation Date: 
September 20, 2001
Legacy
Legacy ID: 
12643

Gas Chlorine Education

The Gas Chlorine Education Committee announced the launch of an industry-wide campaign entitled, "Gas Chlorine: The One and Only Choice for Water Disinfection." The year-long campaign takes aim at unsubstantiated reports questioning the safety of gas chlorination.

Deck: 

Committee launches chlorine safety campaign

Publication Date: 
September 11, 2001
Activation Date: 
September 11, 2001
Files: 
Issue Reference: 
Legacy
Legacy ID: 
12620
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