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    Case Study: Nanobubble Aeration Transforms a Golf Course Lake in FL

    by: SOLitude Lake Management   |   Aug 15, 2019

    Nanobubble Aeration

    Nanobubble aeration is an exciting new technology that is helping restore water quality in some of the most problematic lakes and ponds. One such lake that greatly benefitted from the infusion of these tiny bubbles is located in a large development district in Bonita Springs, FL. This 1.3-acre lake was persistently plagued by multiple species of algae—including filamentous green algae and potentially toxic cyanobacteria (blue-green algae). The pond is located adjacent to a golf course and has multiple homes around its perimeter, making water quality restoration a priority. Historically, the 8 ft deep lake underwent extensive algaecide treatments with little long-term success.

    Due to difficulties faced in conventional control management, the lake was deemed a candidate for control using new nanobubble aeration technology. Nanobubble technology is designed to exceed the oxygenation capabilities of traditional aeration systems. Nanobubbles produced by on-shore generators are ultra-fine—about 400 times smaller in diameter than human hair and 1 million times smaller than ordinary bubbles. As a result of their microscopic size, nanobubbles have no natural buoyancy and remain within the water column for extended periods of time, allowing them to provide an incredible amount of oxygenation to a waterbody.

    Nanobubble aeration results

    The nanobubble aeration device ran from August through November of 2018, with a few intermittent down times for repairs and maintenance. The device uses a 7.5hp pump to circulate water from the lake while injecting beneficial nanobubbles into the water column. Algaecide treatment was discontinued to allow for an objective measure of success. Within 2 weeks, there was no visible algae on the surface of the lake and the algae on the lake bottom was observed to be dying off. The algae remained absent from the lake during the entirety of the test.

    Dissolved oxygen (DO) measurements taken before and during the test indicated that the DO had risen over 50% in the water just above the lake bottom. It is hypothesized that the nanobubbles have also diffused into the organic muck, providing oxygen for aerobic bacteria.

    Based on a monthly average of the algaecides used to treat the lake prior to the test, approximately $1,000 was saved in algaecide application costs alone. This does not include labor or equipment. Residents commented that the lake looked better than it ever had and were ecstatic about the results.

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    Contact the experts at 888-480-LAKE (5253) for all of your lake, stormwater pond, wetland and fisheries management needs. 

    SOLitude Lake Management is a nationwide environmental firm committed to providing sustainable solutions that improve water quality, enhance beauty, preserve natural resources and reduce our environmental footprint. SOLitude’s team of aquatic resource management professionals specializes in the development and execution of customized lake, stormwater pond, wetland and fisheries management programs that include water quality testing and restoration, nutrient remediation, algae and aquatic weed control, installation and maintenance of fountains and aeration systems, bathymetry, shoreline erosion restoration, mechanical harvesting and hydro-raking, lake vegetation studies, biological assessments, habitat evaluations, and invasive species management. Services and educational resources are available to clients nationwide, including homeowners associations, multi-family and apartment communities, golf courses, commercial developments, ranches, private landowners, reservoirs, recreational and public lakes, municipalities, drinking water authorities, parks, and state and federal agencies. SOLitude Lake Management is a proud member of the Rentokil Steritech family of companies in North America.

    Topics: Aquatic Weeds and Algae, Aeration