AWWA-64083 WSO: Jar Testing DVD
WSO: Jar Testing DVD guides water treatment operators to successful and cost-effective jar-testing
results. Water treatment professionals recognize the jar test as the most
valuable and most commonly used tool for determining correct coagulant dosage
in a water treatment plant. The quality of raw water entering the plant can
change quickly. Jar tests help operators rapidly respond to those changes. Jar
testing is also used to evaluate other process changes, such as chemical
application point within a treatment train, on treated water quality.
Overdosing, under-dosing, or using the wrong combination of pretreatment
chemicals can cost thousands of dollars in wasted materials and personnel
hours. By learning the proper methodology for jar testing and employing it in
everyday use, operators will improve treatment efficiency, and save time and money
for the utility.
Topics:
-Purpose of jar testing
-Recommended jar testing equipment
-Preparation of stock solutions
-Importance of calibrating jar testing equipment
-How to conduct a jar test
-How to evaluate test results
-A working example of jar testing
(19 min.)
ISBN: 9781583216101
Publisher: American Water Works Association
Publication date: 2009
AWWA catalog no: 64083