Manual vs. Automatic
Water & Wastes Digest
October 2008
By Jonny Barron & Bob Beyer
Weighing the pros and cons of manual and automatic sampling methods
PDF Version
Dose by Numbers
Water & Wastes Digest
September 2008
By Chris Westlake
Dissolved organics analyzer controls coagulant chemical additions at a New Jersey water utility
PDF Version
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.
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.
A Novel Approach Tested in Oregon
Water & Wastes Digest
May 2004
By Rob Baur and Jacques Bourbonnais, Ph.D., P.Eng.
If operators can optimize the use of existing facilities and delay expansion, there could be significant capital savings.
A Reliable Tool
Water & Wastes Digest
April 2004
By Rick Davis
By implementing fluorescent technology in the measurement of DO levels, wastewater professionals may have a reliable tool that allows for the optimization of the biological processes and a reduction in the aeration costs related to energy usage.
Fluid Samplers: Vacuum vs. Peristaltic
Water & Wastes Digest
September 2003
Tim Gregorski
A fluid sampler is essentially a smart pump that takes a liquid sample from a source and deposits it into one or several containers for inspection. Fluid can either be pulled up the intake hose, or pushed from the source. Two types of samplers are typically used, vacuum/compressor and peristaltic. When choosing a sampler, correct analysis of your application is vital.
Odor Control System
Water & Wastes Digest
January 2003
Brent Howe
Odor complaints have become an all too familiar subject to WWTP managers. They are not only expected to manage their plants effectively and efficiently, meeting both regulatory specs and budget requirements – they are also expected to be good neighbors and keep odor under control. This article describes the successful odor control efforts of the South Dearborn Regional Sewer District located in Lawrenceburg, Ind.
New Analyzer Takes Readings During the Treatment Process
Water & Wastes Digest
January 2003
A unique ammonia/phosphate analyzer designed to take readings directly in the wastewater, in other words, precisely where the nutrient concentration needs to be measured, also delivers real-time, online information about nutrient concentration in the process.
Controlling Hospital Grease, Sludge Discharges
Water & Wastes Digest
September 2002
One of the major problem areas in St Petersburg, Florida has two hospitals and a nursing home that discharge to a common sewer line. Historically, the city had to clean this section of the sewer line at least four times a year to avoid blockages and sanitary sewer overflows. Working together, the city and one of the hospitals took action to control the discharge of grease from the hospital's facilities and to reduce the costs of maintenance for both the city and the hospital.
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