Polyethylene Pipe Chosen for Delicate Northwest Estuary/Aquarium

Two plants separated by Oregon's Yaquina Bay needed to be connected with two separate pipelines: one line to bring raw sewage to the new plant and one line to carry the finished refuse back to the old plant.

Activation Date: 
July 25, 2001
Files: 
Legacy
Legacy ID: 
12458

Long-Term Settlement of a Large Water Standpipe

When tank settlement is anticipated, certain precautions must be taken to assure that the tank settles properly.

Deck: 

Water Tanks

About The Author: 

Steven Law, Ph.D., P.E., is a principal engineer and John Kasprzak is a design technician of the Infrastructure Systems Group of the Washington Suburban Sanitary Commission, Laurel, Md.

Activation Date: 
May 21, 2001
Legacy
Legacy ID: 
12392

Flexible Monitoring System Helps Ohio Company Meet Daily EPA Measurement Requirements

An Ohio utility company provides water plant operator services to facilities throughout the state, including several very large travel center operations. Daily monitoring became time consuming and costly, so they sought a more efficient solution by investigating plant monitoring systems.

Activation Date: 
May 21, 2001
Files: 
Legacy
Legacy ID: 
12348

Duty Calls For Local Awareness

Editorial: May 6—12 is National Drinking Water Week (NDWW). It is our duty and opportunity as water professionals to make this week work for us by incorporating local companies, expertise and even the Water Quality Association (WQA) into NDWW.

Activation Date: 
May 10, 2001
Issue Reference: 
Legacy
Legacy ID: 
12351

Pumping Up Big John

The John Hancock building, located on Chicago’s Magnificent Mile, needed to revamp its entire pumping and reservoir system without shutting off water to the building’s residents.

Activation Date: 
May 9, 2001
Files: 
Issue Reference: 
Legacy
Legacy ID: 
12345

Basic Essentials

The benefits of ultraviolet (UV) light in destroying waterborne diseases are well established. This article (part one in a continuing series) will focus on explaining the basic terminology associated with the technology.

Deck: 

Understanding Ultraviolet Terminology

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 9, 2001
Legacy
Legacy ID: 
12346

Insertable Electromagnetic Flowmeter Solves Difficult Piping Problem

A difficult piping arrangement that included limited distance between the metering site and pipe fittings posed a dilemma for the engineering staff at a city of Frederick, Maryland, raw water pumping station.

Activation Date: 
April 25, 2001
Files: 
Legacy
Legacy ID: 
12341

Desalination of Seawater Helps Meet Fresh Water Demand

Three French companies are meeting the water demands of large populations through the use of seawater desalination.Distillation and reverse osmosis are two competing techniques in the desalination of seawater. While each method has pros and cons, both provide a vital service in making seawater drinkable. Three French water companies (Saur, Degremont and Sidem) are working to improve the quality of fresh water created by both these methods and have invested heavily in the Mediterranean and Middle East markets with these technologies.

 

Las Palmas, Spain

Deck: 

Water Sources

About The Author: 

J.L. Martin-Lagardette is a free-lance environmental writer in Paris, France.

Publication Date: 
March 30, 2012
Activation Date: 
April 20, 2001
Legacy
Legacy ID: 
12334

Remote Water Treatment Process System Benefits

Conventional water treatment control systems often lack the ability to communicate all process parameters from a centralized location to the point of operation. Thus, standardized control of all the facilities within a water district is difficult. Process adjustments performed onsite may not conform to federal, state or municipal regulations for water quality control.

Deck: 

Control Systems

About The Author: 

Andy Harris is vice president of marketing for Burkert, Irvine, Calif.

Activation Date: 
March 19, 2001
Files: 
Legacy
Legacy ID: 
12241

Municipal Plant Upgrades Wastewater Treatment With New Magnetic Flowmeters

Wisconsin's Madison Metropolitan Sewerage District needed to replace its aging electromagnetic flowmeters at 32 points in its Nine Springs Wastewater Treatment Plant. After carefully weighing its options, the district decided to purchase UniMag magmeters from Isco, Inc.

Activation Date: 
February 28, 2001
Files: 
Legacy
Legacy ID: 
12201