Provide PDF Format
AWWA ACE63254
- Oxygenating Upper San Leandro Reservoir: 2002-2005
- Conference Proceeding by American Water Works Association, 06/01/2006
- Publisher: AWWA
$12.00$24.00
This slide presentation outlines a project of oxygenating the Upper San Leandro (USL) Reservoir. Taste and odors from Anabaena producingGeosmin levels several times above designcapacity of ozone feed system were a problem.A 1997 study determined excessive nutrients as thecause of Anabaena blooms, and recommended hypolimneticoxygenation to reduce internally-generatednutrients.The study also recommended destratification duringspring season after heavy runoff years to reduceexternally imported nutrients. A summary of the project concluded that: hypolimnetic oxygen feed for USL Reservoir required3 tons/day after initial demand (0.2 mg/l/day);to distribute the oxygen evenly, higher rates forshorter periods appear to facilitate mixing;the treatment plant experienced lower ozone demand,as much as 50%;manganese levels also decreased, but to a lesserextent;algae composition changed from blue-green todinoflagellates, requiring pre-chlorination;induced mixing and lower oxygen feed resulted infewer dinoflagellates and more diatoms. Includes figures.
Related Products
AWWA WQTC69384
Differential Absorbance Spectroscopy in the Examination of Proton and Copper-Binding Properties of S..
$12.00 $24.00
AWWA WQTC65709
The Influence of Water Chemistry on Dissolution Rates of Lead Corrosion Products..
$12.00 $24.00
AWWA ACE63218
Seasonal Variations in the Contribution of Wastewater to DBP Formation in Drinking Water..
$12.00 $24.00