Production of High Purity Water From Seawater

The Diablo Canyon Power Plant at Avila Beach in California utilizes seawater for both cooling water and makeup water for steam generation. Ionics, Inc., Watertown, Mass., designed and built and now operates a complete water treatment system serving the high-purity water needs of this power plant. Over the past eight years, the seawater treatment section has demonstrated excellent long-term performance as a result of strong design, consistent maintenance and qualified operators.

Activation Date: 
February 26, 2002
Issue Reference: 
Legacy
Legacy ID: 
12975

Metering Pump Technology

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.

Deck: 

Motor-driven, solenoid and peristaltic metering pumps provide proper control for specific applications and multiple needs.

About The Author: 

Steven Ebersohl is strategic accounts manager for Pulsafeeder, Inc., a manufacturer of metering pumps and controls, Punta Gorda, Fla. He has more than nine years of experience in the water treatment industry working with reverse osmosis systems, demineralizers, softeners, chemicals and equipment. Ebersohl holds a bachelor’s degree in chemistry and biological sciences from Quincy University, Quincy, Ill. He can be reached at 941-575-3855, fax 941-575-4085; sebersohl@idexcorp.com.

Activation Date: 
February 26, 2002
Issue Reference: 
Legacy
Legacy ID: 
12974

Pump Changeout Stops Fouling, Saves Energy

The pumps at the Stony Brook Lift Station in Suffolk County, N.Y. used to clog so often that crews anticipated an event as part of their weekly routine.

Activation Date: 
December 27, 2001
Legacy
Legacy ID: 
12845

Avoiding Possible Problems in Submersible Motors

Typical agricultural, domestic and municipal systems are excellent applications for these motors. Unfortunately, these motors often are used in applications that unknowingly exceed the design criteria of the motors.

Deck: 

Motors

About The Author: 

Tom Sgritta is the global submersible marketing manager-industrial for Franklin Electric, Bluffton, Ind. He also is a member of the faculty of the Belk College of Business Administration at the University of North Carolina at Charlotte.

Activation Date: 
December 27, 2001
Files: 
Legacy
Legacy ID: 
12840

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

Pumping System Helps Town Bring New Development Up to Code

When a Leicester, Mass., developer planned a subdivision of 16 houses at the same elevation as the town’s water tower, he was faced with the problem of how to provide minimum water pressure mandated by the state. He had read about the use of a Goulds Aquavar pump control system in high-rise commercial buildings, and the idea of a variable-speed system appealed to him. He thought a pressure-demand system might do the job cost effectively.

Deck: 

At Work on Pumps

Activation Date: 
November 13, 2001
Legacy
Legacy ID: 
12765

Editorial Emphasis: Valves

New Spring-loaded Check Valve Reduces Valve Failure Risk

About The Author: 

For further information, phone Hayward Industrial Products at 908-351-5400.

Activation Date: 
October 22, 2001
Legacy
Legacy ID: 
12714

Coatings Repair 20-year-old Pump, Save Replacement Costs

When one of four circulating water pumps at the Potomac Electric Power Company (PEPCO) Chalk Point Generating Station began to leak, engineers began to worry.

Activation Date: 
July 25, 2001
Files: 
Legacy
Legacy ID: 
12462

Using Variable Frequency Drives for Sewage Lift Stations

High in the Pocono Mountains of Eastern Pennsylvania, the small town of Tobyhanna was in need of a high head, small flow sewage lift pump.

Activation Date: 
July 25, 2001
Files: 
Legacy
Legacy ID: 
12461

New Pumping System Helps Conserve Water, Energy for Utah Conservation District

The Ogden, Utah, area sought more cost effective and energy efficient ways to optimize and conserve its natural resources.

Activation Date: 
July 25, 2001
Legacy
Legacy ID: 
12460
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