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Dec 28 2000
When I ended my interview with Dr. Abba G. Lichtenstein, P.E., following his acceptance of the John A. Roebling Medal for Lifetime Achievement at…
Dec 28 2000
Reverse osmosis plants increasingly are being installed in outlying and remote areas. By providing water they can sustain life and/or provide…
Dec 28 2000
The most valuable asset any company has today is not its facilities. It’s not the inventory in the warehouse or on the production line. It’s not the…
Dec 28 2000
Backhoes/loaders Allmand Bros. Inc. The Allmand Contractor TLB-35 compact backhoe/loader from Allmand Bros. Inc., Holdrege, Neb., offers a 35-hp…
Dec 28 2000
It is estimated that road-user costs on a typical urban highway rehabilitation project can exceed $50,000 or more per day. Since 1973, the number of…
Dec 28 2000
With the increasing cost of chemical regeneration and waste neutralization, as well as the liabilities of storing and handling hazardous chemicals,…
Dec 28 2000
Thirty years ago saw the beginning of fiber reinforced plastic (FRP) pressure vessels and tanks. These were made the same way as today­p;­p;layering…
Dec 28 2000
This article will take a look at some of the thorny issues of price and some techniques for working around common problems. The first point to get…
Dec 28 2000
Ultraviolet disinfection is a means of killing or rendering harmless,microorganisms in a dedicated environment. These microorganisms can range from…
Dec 28 2000
Numerous other dangers lurk around a plant, awaiting the unwary. Electrical shock injury is common, as are injuries from falls and accidents…
Dec 28 2000
Membrane filtration, widely used in chemical and biotechnology processes, is already established as a valuable means of filtering and cleaning…
As water passes through a chloride-form anion resin, alkalinity will be removed from the water.
As water passes through a chloride-form anion resin, alkalinity will be removed from the water. This results in tannins removal.
Dec 28 2000
Tannin removal is an application that some dealers have felt uncomfortable tackling. Tannins, until several years ago, were treated with standard…
Dec 28 2000
With the promulgation of the USEPA's restrictions on disinfection by-products (DBPs) permitted in America's drinking water attributable to…
Dec 28 2000
Hydrogen sulfide (H2S) emission often causes corrosion and odor problems in wastewater collection and treatment systems. The Vortex Solution Due to…
Dec 28 2000
Bethel Park, Pennsylvania installed two 4MGD traveling bridge filters in 1980. According to Joe Witkowski, who manages the facility, "We had serious…
Dec 28 2000
The Westin Maui resort hotel on Hawaii's island of Maui is known for its exotic landscaping. Unfortunately, a filter problem was turning its handsome…
Dec 28 2000
"We need more leads, Boss." It never stops. You need leads every day to feed your sales force or they will wither and go somewhere else. Where can…
Dec 28 2000
The nation's water systems are increasingly cited for causing illness due to water-borne bacteria and organisms, creating distrust in the quality of…
Dec 28 2000
The removal of impurities and contamination from water supplies or industrial chemicals is a process existing all over the world to varying degrees…
Dec 28 2000
The American Water Works Association Research Foundation (AWWARF) makes available copies of their completed research projects. These reports may be…
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