The Tampa Water Department, after seeing positive results from a pilot initiative, is forging ahead with the adoption of ultrasonic technology to fight algae growth in the Hillsborough River Reservoir. A two-year test saw the installation of two ultrasonic buoys that send out low-power ultrasound waves across the river's top layer, which disrupts the algae's ability to surface and photosynthesize. This tech measure turned out to be both cost-effective and non-disruptive to the local ecosystem, making it a win-win for the department.
The pilot program, which launched in March 2023, was not only about trying out new methods but also about reducing the reliance on chemicals. The buoys, located strategically within the reservoir, led to a significant drop in chemical use during the first year. In the second year of the program, the areas around the buoys saw no chemical interventions at all. According to Tampa's official website, Mayor Jane Castor praised the department's innovative spirit and dedication to delivering top-notch drinking water.
Algae blooms are a familiar sight in the reservoir, particularly from April to June - a period characterized by less rain, diminished water flow, and higher temperatures. The growth of algae is more than a visual issue; it can also affect the taste and smell of water, making the department's proactive measures all the more crucial for maintaining the water's quality for Tampa's citizens.
The funding for the ultrasonic buoy pilot came through a grant of $115,254 from the Florida Department of Environmental Protection. With results from the pilot showing promise, the Tampa Water Department plans to keep the current buoys in operation and is considering expanding the program. "This is yet another example of the innovative mindset that sets the Tampa Water Department apart and gives the team a pioneering reputation," Mayor Castor explained, as per the the City of Tampa.
