|
SolarBee®
Fresh
Water
Potable
Water
Wastewater
Industrial
Applications
Specifications
Case
Studies/
Testimonials
News
Articles
Videos
Photos
|
Case Studies and
Testimonials
Case Study for Customer Location
UT102:
Reservoir or Lake Use:
Raw water reservoir for the city.
System Overview and Reservoir:
The reservoir has a total surface area of 60 acres, a maximum
depth of 80 ft and an average depth of 65 ft. The reservoir is
separated for management purposes into two parts: the Upper
Reservoir and Lower Reservoir. Water intake to the water
treatment plant is from near the dam in the Lower Reservoir.
Reported Problem Before SolarBee Installation:
There had been significant taste and odor problems during the
summer associated with the accumulation of manganese (Mn) and
hydrogen sulfide (H2S) in anoxic sediments and bottom waters.
The reservoir also had a long history of taste and odor problems
associated with blue-green algae blooms, and copper sulfate was
applied extensively until the 1990s. The lake’s fishery,
including native cutthroat trout, was not healthy. Surface and
bottom water flushing helped somewhat, but at the expense of
releasing valuable water downstream. Water releases ended in
1999 as drought conditions worsened, and the reservoir’s water
quality deteriorated significantly.
SolarBee Installation:
Date: July 2004, installed one (1) SB10000v12 near the dam in
the Lower Reservoir. The unit's down hose was set at 45 ft below
the water surface, keeping it 10 ft below the intake.
Results:
The water quality steadily improved following the installation
of the SolarBee, and has remained good ever since. The city DPU
reports that algal blooms are gone, there has been no need to
apply copper sulfate in the area around the intake to the
treatment plant, and there have been no treatment or taste and
odor problems. In addition, water clarity (Secchi depth
visibility) has reached about 30 ft, the fish are "fat and
lively", and the reservoir is much healthier than before. The
city DPU presented these results at both the 2005 Water Quality
Technology Conference and in an article in the May 2006 issue of
Opflow (American Water Works Association). They are very happy
to have consistently good water quality without having to
release water, particularly during recent drought years.
Back
to Case Studies Index
|
