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AWWA JAW36163
- Journal AWWA - Monitoring the Effect of Zebra Mussels on Raw-Water Intakes
- Journal Article by American Water Works Association, 05/01/1994
- Publisher: AWWA
$15.00$30.00
Many raw-water intakes in the Great Lakes are threatened by infestations of zebra mussels. Hydraulic testing and visual inspection of the intakes tend to be time-consuming and costly. The authors introduce an index (the damping ratio) that can be simply and inexpensively used to monitor the conditions of water intakes by signaling a change in flow resistance. The authors calculated some damping ratios and compared them with hydraulic data from drawdown tests. The results show that the damping ratio index has a direct relationship with the friction coefficient of the intake. Includes 5 references, table, figures.
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