150 Years of WEM

Combine an active interest in public works, a penchant for writing and four generations of a family willing to work in publishing and what do you get? A magazine, Water Engineering & Management, with 150 years of service to water/wastewater professionals (and 81 years under the Gillette family name).

Deck: 

Tracing a Family's Passion for Publishing and Public Works

About The Author: 

Bill Swichtenberg is the editorial director of WEM.

Activation Date: 
January 9, 2003
Files: 
Legacy
Legacy ID: 
13503

Plastic Pipe Used in RO Project Provides Residents with Clean Water

A competitive price won the attention of a Texas engineering firm to high density polyethylene (HDPE) pipe. However, good performance won its loyalty.

Deck: 

Products at Work

Activation Date: 
November 13, 2001
Legacy
Legacy ID: 
12771

Coping with Resistance to Copper/Silver Disinfection

Numerous facilities have invested in copper/silver disinfection systems to address the limits of traditional water treatment methods. It seems likely that, as bacterial populations develop resistance, many of these systems will become less effective through time.

Deck: 

Biocides

About The Author: 

W. Craig Meyer is a professor of environmental science at Pierce College in Woodland Hills, Calif.

Activation Date: 
November 13, 2001
Legacy
Legacy ID: 
12768

Feasibility Study Proposes Inflatable Dam

>The Wyoming Valley (Pa.) Inflatable Dam Feasibility Study recently received a National Honor Award in the studies, research and consulting engineering services category at the ACEC Engineering Excellence Awards Competition. The annual event celebrates engineering achievements that demonstrate the highest degree of merit and ingenuity.

Deck: 

Flood Protection

About The Author: 

Garnet Daus is the public relations coordinator for Gannett Fleming, Inc., Harrisburg, PA.

Activation Date: 
November 13, 2001
Legacy
Legacy ID: 
12767

Primary Coagulant Aid Outperforms Alum, Slashes Operating Costs

At a water treatment plant in Cleveland a primary coagulant aid slashed the operating costs.

Deck: 

At Work on Chemicals

Activation Date: 
October 19, 2001
Files: 
Legacy
Legacy ID: 
12710

Primary Coagulant Aid Outperforms Alum, Slashes Operating Costs

At a water treatment plant in Cleveland a primary coagulant aid slashed the operating costs.

Deck: 

At Work on Chemicals

Activation Date: 
October 19, 2001
Files: 
Legacy
Legacy ID: 
12709

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

Controlling Nitrification in a Water Distribution System Using Sodium Chlorite

Engineers set out to discover whether the direct addition of sodium chlorite to a water stream might be an effective nitrification control process.

Deck: 

Water Treatment

About The Author: 

Thomas L. O’Connor, BSEE, MBA, is project director, H2O’C Engineering, Columbia, Mo. e-mail: Tom@h2oc.com
 
Bart Murphy, BSCE, is superintendent of Water, Willmar (Minn.) Municipal Utilities.
 
John T. O’Connor, EngD, PE, is principal, H2O’C Engineering, Columbia, Mo. Phone: 877-22-WATER; e-mail: John@h2oc.com.
 

Activation Date: 
September 21, 2001
Legacy
Legacy ID: 
12646

Pipeline Rehab Survives the Elements

Projects rarely are easy. However, throw in a remote site, steep siphon, a limited number of access points, harsh winter conditions and environmental concerns and you have a daunting project.

Deck: 

Products At Work

Activation Date: 
August 22, 2001
Files: 
Legacy
Legacy ID: 
12549

Waterproofing the Montsouris Reservoir: Using Hydraulic Binders and Nonwoven Geotextiles to End Leaks

Leakage problems have plagued the reservoir since it entered service.

Deck: 

At Work on Coatings

Activation Date: 
August 22, 2001
Legacy
Legacy ID: 
12547