Automated Chlorine Control Brings Precision to Water Reclamation Operation

Using reclaimed water for non-potable purposes as a means of conserving potable water supplies is the most prevalent method of water reuse in the United States today. One of the significant challenges for water reclamation facilities is to keep up with the demands for safe, compliant chlorine (Cl2) treatment. One utility that is effectively meeting this challenge is Southern California’s Otay Water District.

About The Author: 

Steve Kobler is the water disinfection technician for the Otay Water District, Otay, Calif.

Activation Date: 
May 6, 2002
Legacy
Legacy ID: 
13089

Legionella Management and Monitoring: Part 2

Well-designed water distribution and cooling systems,
coupled with sound management and operational procedures, are essential to
control Legionella in industrial facilities—and a monitoring program
should not be considered as a replacement. However, most experts even those
ill-disposed towards routine Legionella monitoring, would agree that monitoring
should be considered if enough legionellosis risk factors apply to the system
in question. No management program, regardless of its treatment, maintenance or
monitoring components, can guarantee the absence of future legionellosis, but
prudent operational practices combined with ongoing review of risk factors will
allow facility managers to minimize exposure to Legionella and to its legal consequences.

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 or pwarden@analyticalservices.com.

Activation Date: 
January 30, 2002
Issue Reference: 
Legacy
Legacy ID: 
12917

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

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