Dose by Numbers
Water & Wastes Digest
September 2008
By Chris Westlake
Dissolved organics analyzer controls coagulant chemical additions at a New Jersey water utility
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Reliable, Repeatable Results
Water & Wastes Digest
September 2006
By Mohamed Abouleish & Robert Clifford
Sampling techniques in the water and wastewater industry
Selecting The Best Fluid Sampler For Your Needs
Water & Wastes Digest
September 2005
By Patsie Wyatt
This article focuses on the two main types, peristaltic and vacuum/compressor, though other types do exist such as a dipper and gravity flow.
Adapting to Arsenic Rules
Water & Wastes Digest
August 2005
By Wendy L. Chambers and Roman J. Aguirre
The proposal consisted of supplying more than 300 tons of GFH adsorption media and 35 large diameter pressure vessels, including instrumentation and controls as well as backwash storage tanks.
Parameters for Water Quality Field Testing
Water & Wastes Digest
October 2004
By Tony Pagliaro
The most important clues for a water treatment professional’s decision-making process come from accurate water quality analysis information.
Let the Debating Begin
Water & Wastes Digest
September 2004
By Larry Kolbert
Less maintenance translates into less money being spent from a water or wastewater maintenance budget for both spare parts and labor.
The Nuts and Bolts of Chemical Oxygen Demand
Water & Wastes Digest
May 2003
Biochemical Oxygen Demand (BOD) is a definitive indicator of required treatment in wastewater, and estimating BOD is an important part of wastewater treatment process control. The U.S. Environmental Protection Agency (USEPA) requires wastewater treatment plants to bring BOD within limits before discharging treated wastewater, and accurate test results must be recorded for regulatory reporting. Thus, measuring BOD in treated water is an important part of the monitoring process. Many wastewater treatment facilities use a faster Chemical Oxygen Demand (COD) test to estimate BOD levels.
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