Algal bloom research to study efficacy of ultrasonic devices

April 8, 2021
The New York State Department of Environmental Conservation to deploy new technology to study harmful algal blooms at Lake Agawam

SOUTHAMPTON, NY — The New York State Department of Environmental Conservation (DEC), in partnership with the village of Southampton, announced a new research project to evaluate the potential efficacy of ultrasonic technology to mitigate harmful algal blooms (HABs) on Lake Agawam, village of Southampton. This research is part of the HABs Action Plan developed in 2020 by DEC for Lake Agawam. The technology will be deployed later in April 2021.

HABs are a growing environmental problem, affecting all parts of the world. Excessive nutrient pollution entering water bodies, especially phosphorus and nitrogen, drive the growth and spread of harmful algal blooms. Besides unpleasant tastes and odors, excessive HABs can seriously harm humans, pets, and aquatic organisms, and degrade water quality. Additionally, they can disrupt water treatment processes by clogging filters and pipes.

State experts are working closely with the Lake Agawam community, and in collaboration with Stony Brook University. Together, they are set to study the effectiveness of ultrasonic devices on Lake Agawam throughout the summer of 2021. If successful, this technology will be used for other water bodies that are contaminated with HABs. In addition to ultrasound, the lake will be treated with ordinary products.

As summer season is soon to start, it presents the optimal conditions to evaluate the use of ultrasonic treatment for the long-term improvement of the lake's water quality. HABs are more likely to occur and become a problem when temperatures rise. Three ultrasonic devices will be deployed on floating, solar-powered buoys, combining continuous water quality monitoring, a web-based software, and ultrasonic technology to effectively control HABs in real-time.

The technology emits ultrasonic waves that create a sound layer in the top layer of the water, impacting the buoyancy of algae cells. These cells sink to the deeper layers of the water column, where the algae cannot access sunlight anymore, and naturally die.

About LG Sonic

LG Sonic is the leader in algae management, designing innovative and sustainable solutions to combat harmful algal blooms and improve water quality across industries. At last count, 100+ clients in 55+ countries had 10,000+ units installed to keep their algae under control. For over 10 years, LG Sonic has invested in research and development.

Today, the company delivers ultrasonic solutions that restore water ecosystems without the use of chemicals or other pollutants.

This award-winning technology consists of a 3-stage process. First, it monitors algae species and water parameters in real-time; Second, based on the collected data, it predicts new blooms up to 10 days before they occur. Third, it uses a data-driven, learning algorithm to adjust wave frequencies in response to algal mutations and environmental changes.

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