 | EDITORIAL CATEGORY - MONITORING |
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Wireless Automation Opens Door to New Monitoring Options
Water & Wastes Digest
November 2002
Donala Water and Sanitation serves a large community of upscale homes in suburban Colorado Springs. In 1995, Donala turned to GMS Engineering of Colorado Springs to create a Request for Proposal for a comprehensive radio-based telemetry network that would grow with the rapidly expanding district. From the RFP, a Motorola MOSCAD wireless telemetry system was selected. Once it was installed, the district began to realize benefits from the new technology.
The Invisible Sewage Plant
Water Engineering & Management
September 2002
Carl Dorsch
If you go looking for a particular sewage treatment plant in Cincinnati, Ohio, the first thing you'll notice is--you might not notice it at all. In fact, you might drive right by the facility, dismissing it as just another office building. It just does not look like a treatment plant.
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Controlling Hospital Grease, Sludge Discharges
Water & Wastes Digest
September 2002
One of the major problem areas in St Petersburg, Florida has two hospitals and a nursing home that discharge to a common sewer line. Historically, the city had to clean this section of the sewer line at least four times a year to avoid blockages and sanitary sewer overflows. Working together, the city and one of the hospitals took action to control the discharge of grease from the hospital's facilities and to reduce the costs of maintenance for both the city and the hospital.
Automated Chlorine Control Brings Precision to Water Reclamation Operation
Water Engineering & Management
May 2002
By Steve Kobler
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.
Metering Pump Technology
Water Quality Products
March 2002
By Steven Ebersohl, Pulsafeeder, Inc.
Since the introduction of the metering pump, chemical feed for disinfection has been a primary application. As we move into the 21st Century, it again is time to review how we introduce chemicals such as sodium hypochlorite into our water systems. While the goal remains the same, changes in pump technology have been created to provide more accurate and consistent results. This article will discuss current metering pump technologies, proper pump sizing, installation and future enhancements.
Cutting Grease With Ongoing Monitoring and Maintenance
Water Engineering & Management
March 2002
James M. Russell
Grease is clogging sewers nationwide, creating a costly mess to clean up and a dilemma for officials and regulators. Recently, the Wall Street Journal reported that 75 percent of the sewer systems in the United States work at only half capacity because of grease clogs. The cost of keeping sewers open, a cost borne by taxpayers at a local level, is $25 billion per year. The increase in grease in sewer lines is a direct result of the phenomenal growth in dual-income households who choose to eat out or take-out rather than cook at home.
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Legionella Management and Monitoring: Part 2
Water Quality Products
February 2002
Paul S. Warden, Kristen S. Fallon, Ph.D., M.S.E.L., & Colin R. Fricker, Ph.D.
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.
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High-Tech Products: Instrumentation
Water & Wastes Digest
October 2001
Sensors and Analyzers Prove Instrumental in Preserving Civil War Sub: Recovered Submarine Requires Chloride Removal to Prevent Rust and Corrosion
Riding the Tides to Information Integration and Improved Performance
Water Engineering & Management
March 2001
Paul Borzo
San Diego Water has taken a giant technological leap forward. It has gone from a 15-year-old monitoring system operating with tone telemetry on leased lines to a state-of-the-art supervisory control and data acquisition (SCADA) system that integrates numerous technology systems throughout the enterprise.
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