View list of articles from July - December 2004
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Urban Reuse:: Bringing Water Treatment Where It's Needed Most, AWWA Journal, June 2004
Recently, technology advancements have pushed satellite treatment plants into the forefront. This new process allows communities to remotely treatment wastewater--alleviating the need to expand old, centralized wastewater systems in an urban location where expansion can be disruptive and costly.
Casebook: Revolutionary Technology Cuts Biosolids Production and Costs, Pollution Engineering, May 2004
A growing number of U.S. municipal and industrial wastewater treatment plants (WWTPs) are no longer routinely wasting biological solids from their treatment processes.
Membrane Filter Presses Gain Popularity in Asia, Water & Wastewater International, May 2004
Dewatering alum residuals is a worldwide challenge as growing populations and expanding industries call for the construction of more water treatment plants. In Asia, many countries have taken a proactive stand on dewatering alum sludge due to overburdened drying beds and increased public scrutiny.
Microfiltration Lowers Turbidity, Increases Capacity, AWWA OpFlow, April 2004
In October 2001, after repairs were made to the Idaho Springs Dam, turbidities greater than 60 ntu passed through the community's 2-mgd water treatment plant and into the distribution system. .
Age Old Solution for Today's SO2 and NOX, Pollution Engineering, April 2004
Newly mandated pharmaceutical pretreatment standards imposed by U.S. EPA and adopted by the city of Albany, Ore., have led Synthetech Inc. to install a wastewater treatment system.
Don't Send Money Down the Drain, Chemical Processing, April 2004
Wet air oxidation (WAO) was originally called the Zimmermann Process, after its developer, F.J. Zimmermann.1 Today, the hydrothermal treatment process is still widely known as the Zimpro® process, of which more than 200 full-scale systems, treating a variety of municipal and industrial applications, exist worldwide.
Water Agency Reduces Two Contaminants with One Process, Waterworld, Feb. 2004
In the early 1990s, Knoxville Water Works of Knoxville, IA, learned that radium levels in its public drinking water supply exceeded those deemed as safe in the Safe Drinking Water Act. Upgrading its then-current water treatment plant, built in the 1960s, would have been costly.
Myths and Misconceptions Regarding Class "A" Sludge, WaterWorld, Feb. 2004
Though confusion still remains among the public regarding the significant differences between Class "B" and Class "A" sludge, the promise of sludge reuse has begun to blossom fully after years of evolution toward the ideal of a totally sustainable, economically sound, environmentally safe, publicly acceptable large-scale waste-to-product cycle.
Double Dewatering, Water & Wastes Digest, Feb. 2004
Wastewater treatment plant doubles capacity with installation of six new belt filter presses. Completion of this project will make the Broward County facility one of the five largest belt filter press dewatering facilities in the U.S.
The Enemy Within, American City & County, Jan. 2004
Industrial wastes have been silently leaching into soil, air and water for decades. The two that might cause the most harm also are the most persistent in the environment: methyl tertiary butyl ether (MTBE) and perchlorate.