Dutch Water Technology

Monitor, Predict and Control Algae in Lakes and Reservoirs


Monitor, Predict and Control Algae in Lakes and Reservoirs

Watercycle reference

Blue-green algae cause problems when blooming in lakes and water reservoirs, such as health issues, fish deaths, and odor problems. Solutions such as copper-sulphate are besides costly, labour intensive also harmful for the ecosystem. To provide an environmentally friendly solution to these problems, LG Sonic developed the MPC-Buoy system.  

The MPC-Buoy is a solar-powered system that makes use of real-time water quality data to generate specific ultrasonic programs to effectively control algae in lakes and reservoirs.  Each device can control algae in areas up to 500m/1600ft in diameter.

The system allows to eliminate up to 90% of the algae, reduce the concentration of taste and odors causing compounds (geosmin and MIB), and increase the efficiency of the plant by decreasing chemical doses and increasing filter run times. 

Since the spring of 2014, four solar-powered algae control buoys are operating in the Canoe Brook Reservoir in New Jersey, USA to control algae and cyanobacteria in a raw water reservoir.

Extensive testing conducted during 2014 showed that the buoys had a significant impact on the algae, reducing algal counts, raw water turbidity and total organic carbon in the water. This improved water quality, enabled the plant operations staff to reduce coagulant consumption by more than 20 percent and reduced the concentration of undesirable T&O-causing compounds in the raw water entering the plant.

Key Results 
•    Improvement in the water quality
•    Reduction in chemicals
•    ROI of 1.8 years

The Canoe Brook Reservoir is managed by American Water, America’s largest publicly traded water and wastewater utility company. Currently, LG Sonic is running projects in more than 15 countries worldwide. 

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