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The Technical Area of the AWWOA web site is provided for any Operator that would like some insight into various topics of interest within the field of water and wastewater treatment. Most all of the papers presented come from technical sessions held during the Associations' Annual Seminars. However, if any of you would like to have a paper published on this site, we would welcome your effort. E-mail awwoa@awwoa.ab.ca with your information and arrangements can be made to publish your paper.
Here you will find a number of papers that were presented at the AWWOA 1998 Annual Seminar held in Banff. A short synopsis details each of the papers presented.
The following papers are in an Adobe Acrobat PDF file format. You will need to have the Acrobat Reader installed in your computer in order to view these files or be using the latest browser with the Adobe plug-in installed.
Papers presented are the opinion of the author and not that of the Operators Association (AWWOA).
Jar Testing for Potassium Permanganate Demand
Bob Vatcher, C.E.T.
ABSTRACT
A review of why jar testing is such an important tool to an operator, and how to specifically use this tool to determine the optimum dosage rate for Potassium Permanganate.
15 kb
Particle Counting:
How, Why, Where,
& What Equipment
Erika E. Hargesheimer, PhD & Carrie M. Lewis, M. Sc.
The City of Calgary
Engineering and Environmental Services Department,
Waterworks Division (#35)
ABSTRACT
Particle counting, a sensitive indicator of water quality, is rapidly gaining acceptance as a tool for monitoring water treatment processes. In this paper, instrumentation specifications (particle count sensors and components for on-line particle counting networks) are described. Important installation and operating considerations, including monitoring frequencies and data collection formats, for on-line particle counting are also presented.
97 kb
The Impact of Pipe Coatings on Drinking Water Quality
The City of Calgary
Trevor Satchwill, Chemist
Services Engineering and Environmental Department
ABSTRACT
The City of Calgary routinely monitors drinking water for traces of organic chemical contamination. Compounds such as hydrocarbons, plasticizers and solvents are targeted in the screening program.
This presentation will review some representative case histories of trace chemical contamination in the City of Calgary's distribution system. Topics covered will include the type of complaint, what compounds were identified and how these incidents were resolved. In several cases, contamination was traced to internal pipe coating materials. The role of Calgary's Water Quality Monitoring Lab in selecting pipe coating materials land the analytical strategies used in the investigation will also be discussed.
96 kb
How to Select a Chemical Coagulant and Flocculent
Anthony S. Greville
Easy Treat Environmental
Calgary, Alberta
ABSTRACT
In many water treatment Processes the selection of the chemical regime is of critical importance. The mechanical equipment will remove water contaminates to a reasonable level, but to meet the increasingly stringent Federal and Provincial licensing requirements chemical coagulation, flocculation, and disinfection are necessary. This paper will address several topics that will help the water treatment plant operator select the most appropriate chemical treatment program for the needs of the community that the plant services.
127 kb
Conservation of Water
Using Non-Flushing Mechanical Seals
at the City of Edmonton
Goldbar Wastewater Treatment Plant
Bryce Dreger, P. Eng.
John Crane Canada Inc.
Edmonton, Alberta
ABSTRACT
Conservation of water has become an important issue in the last several years. Society as a whole and specifically commercial and industrial groups are continually looking to find ways of reducing water consumption. The Edmonton Goldbar Wastewater Treatment Plant has been reducing their need for mechanical seal flush water for about the last 8-1/2 years. The purpose of this paper is to provide details of what they have done and are continuing to do in order to restrict their usage of water for mechanical seals. A brief history of their water requirements, their seal applications, a description of their original seal designs, and a description of the Non-Flushed Mechanical Seal will make up the contents of this paper.
65 kb