Legionella Management and Monitoring: Part I

This article will present an overview of Legionella bacteria, its ecology and sample collection strategies. A discussion of the pros and cons of Legionella monitoring also is included.

Deck: 

Water specialists should make Legionella reduction a top priority.

About The Author: 

Paul Warden is the vice president of Analytical Services, Inc. (ASI). Dr. Kristen Fallon is the laboratory director of ASI. Dr. Colin Fricker is an independent water quality and treatment consultant affiliated with ASI for special projects and research. Warden may be reached at 800-723-4432 ext. 15; pwarden@analyticalservices.com.

Analytical Services, Inc. (ASI) is a microbiology laboratory that performs testing, research and consulting for clients worldwide. ASI serves the water/wastewater industry (drinking water, ultrapure water and waste water/biosolids), the indoor air quality (IAQ) community and other industrial markets. ASI provides site/risk assessment, monitoring plan design and Legionella testing services. ASI specializes in design and execution of microbiological challenge studies to evaluate filtration efficiency, disinfectant/antimicrobial treatment efficacy and/or product optimization. Visit www.analyticalservices.com for additional information.

Activation Date: 
January 1, 2002
Legacy
Legacy ID: 
12829

Water Intake At New Illinois Power Plant Designed for Variable Flows

The intake system that will draw cooling makeup water from the Kaskaskia River for the $250-million Holland energy plant in Shelby County, Illinois, was designed to balance construction cost imperatives against the river’s variable flow, regulatory requirements and the owner’s operating preferences. The result is a state-of-the-art vital element for the gas-fired, combined cycle plant. As more and more closed-cycle plants are proposed, the concepts that Parsons applied along the Kaskaskia River may provide a good starting point on the drawing boards.

Activation Date: 
December 10, 2001
Legacy
Legacy ID: 
12817

Threat of Water Supply Bioterrorism: Who Will It Impact?

The tragic events of September 11th highlighted America’s vulnerability to terrorism and spurred an unprecedented domestic security response. Water treatment facilities were identified almost immediately as a potential target for further attacks and were urged by the FBI to implement security measures, most of which are still in place.

About The Author: 

Nikolai Pitchforth is a research analyst for Frost &
Sullivan’s North America Environmental Group. For further information,
visit www.frost.com.

Activation Date: 
December 10, 2001
Legacy
Legacy ID: 
12816

Biofouling in Raw Water Supply Wells and Its Impact

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.

Deck: 

Membrane Concerns

About The Author: 

Frederick Bloetscher, P.E., is director of engineering, operations and planning for Public Utility Management and Planning Services, Inc. (PUMPS, Inc.), Dania Beach, Fla.

Gerhardt M. Witt, P.G., is the principal of Gerhardt M. Witt & Associates, Inc., West Palm Beach, Fla.

Robert E. Fergan, P.E., is an engineer with Hazen & Sawyer, Raleigh, N.C.

Activation Date: 
October 19, 2001
Legacy
Legacy ID: 
12706

The State of Regulations

As the POU/POE water treatment industry progresses to new levels and meets new challenges, issues regarding regulations and standards continually arise. As the industry waits for the EPA and U.S. government to finalize regulations, the industry is forced to ride out the MCL changes, rule withdrawals and estimated costs that each proposal brings. Listed here is a review of regulation changes the industry has seen in the last year and a brief look at which ones to watch for in the future.

Deck: 

Government Regulations and Safe Drinking Water Act Updates

Activation Date: 
August 10, 2001
Legacy
Legacy ID: 
12531

Continuous Microfiltration System Ensures Safe Drinking Water For Wisconsin Residents

The Kenosha Water Utility treatment facility, located on the shores of Lake Michigan in Wisconsin, needed to upgrade its two plants to meet the expanding water needs of the community it services. Continuous microfiltration helped meet those needs.

About The Author: 

For further information, phone USFilter at 800-525-0658.

Activation Date: 
May 21, 2001
Files: 
Legacy
Legacy ID: 
12342

Ultraviolet System Design

In the last issue, we reviewed ultraviolet (UV) disinfection as a suitable technology for treating biologically unsafe water supplies. In this article, we will focus on system design and understanding the many available options for residential and commercial applications.

Deck: 

Understanding Residential and Commerical UV

About The Author: 

Adam Donnellan is vice president of sales for Sunlight Systems. He represents the third generation of his family to be involved with UV water disinfection. He can be reached at adam@sunlightsystems.com

Activation Date: 
May 10, 2001
Files: 
Issue Reference: 
Legacy
Legacy ID: 
12355

Filter Cartridges

The following is some basic information compiled from industry experts at diverse companies. Additional information is available at the contact information provided.

Deck: 

The Basic Types, Materials and Applications for Various Filter Cartridges.

About The Author: 

Information provided by Ceramic Filters Co., Inc. Contact James Webb at 888-236-8586; fax 517-467-4587; eramic@frontiernet.net.

Activation Date: 
May 10, 2001
Files: 
Issue Reference: 
Legacy
Legacy ID: 
12352

Cooling Tower Solutions

Testing of a new ozonation system for cooling towers

Deck: 

Testing of a new ozonation system for cooling towers

About The Author: 

W. Craig Meyer is professor of Environmental Science at Pierce College, Woodland Hills, Calif. He has been involved with various aspects of water quality research and consults with companies regarding water quality issues.

Activation Date: 
May 9, 2001
Files: 
Issue Reference: 
Legacy
Legacy ID: 
12347

Cryptosporidium - A brief overview of a new technology

The occurrence of Cryptosporidium parvum and other pathogens in water supplies poses a dangerous problem to the water industry and human health. Read about a new technology that is helping rid of this problem.

About The Author: 

Danielle Duclos is a technical writer at Foresight Science & Technology, a firm specializing in bringing people and technology together. The company’s customers range from major corporations and the U.S. government to small firms. Foresight Science & Technology, New Bedford, Mass., is a contractor for EPA, DoD and several other federal agencies tasked with assessing the utility of this new technology work. Foresight maintains an active federally and in-house sponsored research and development program. Additional information can be obtained at www.seeport.com; 508-984-0018, ext. 13.

Activation Date: 
March 14, 2001
Issue Reference: 
Legacy
Legacy ID: 
12204