Chemical Free
Algae Control for Lakes & Reservoirs

Surface Water Management

Reduce Cyanobacteria & Diatoms up to 95%

Lower pH, TSS & Chemical Consumption

Ultrasound Technology

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Trusted by 100+ water & energy utilities globally

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Trusted by 100+ water & energy utilities

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For water industries worldwide

Drinking Water Reservoirs
Recreational Lakes
Power Generation
Irrigation Reservoirs
Wastewater Reservoirs
Hydroelectric Dams
Oil & Gas

Drinking Water Reservoirs

Improve operations of filters and pipes
Reduce chemical expenses
Prevent taste and odour events

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Recreational Lakes

No closing of the lake needed
No permits required for installation
Safe for humans and aquatic life

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Recreational lake treatment and algae control

Power Generation

Reduce pH and TSS levels
Comply with NPDES regulations
Reduce chemicals and maintenance

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Algae control in power generation industry

Irrigation Reservoirs

Prevent clogging of drip systems
Improve agricultural operations
Chemical-free solution with minimal maintenance

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Wastewater Reservoirs

Lower Biochemical Oxygen Demand (BOD)
Improve effluent treatment
Comply with wastewater regulations

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Hydroelectric Dams

Treat large dams
Reduce algae growth sustainably
Lower chemical consumption

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Oil & Gas

Control algal blooms and TSS levels
Treat large reservoirs
Minimal maintenance

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How LG Sonic technology works

Without treatment

Algae move to the water surface for photosynthesis to grow, and to the bottom of the water column for nutrients.

LG Sonic treatment

Ultrasonic wave blocks algae's access to sunlight & nutrients. Algae sinks to the bottom and dies off without releasing toxins.

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Our Customers

Read the full case study

Seven years ago, American Water was the first customer to believe in LG Sonic’s technology. We’re proud of our ongoing, strong partnership.

Algae were degrading the water quality in a water source for 1.3 million citizens. The company achieved 50% algae reduction within 2 months.

With the help of MPC-Buoy technology, EPM could control algal blooms even in extreme environmental conditions caused by “El Niño’’ in 2015-2016.

Since using the MPC-Buoy, NIPSCO’s TSS levels have never exceeded the monthly average for compliance. This year, they won the Power Mag Water Award.

CAASD’s Valdesia reservoir has a surface of 7km²/1700 acres. After years of algae bloom contamination, the utility achieved 87% chlorophyll a reduction.

Vallecitos Water District significantly improved TSS, pH, and DO levels. Vallecitos can now provide even higher quality water to their customers.

To improve water visibility in Sellafield's storage ponds, 4 LG Sonic systems were installed. These systems have 12 ultrasonic programs that control algae.

Latest News and Events

September 01,2026

Bringing Chemical-Free Water Treatment to World Water Week 2026

LG Sonic Vertical Profiler buoy on El Limón reservoir, Salta, Argentina

August 20,2026

Two years on, Aguas del Norte adds depth monitoring at El Limón

Cost of algae control: algal accumulation on a clarifier surface at a water treatment plant

August 17,2026

The Cost of Algae Control: Building the Budget Case at a Water Utility

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Proven
Algae Control

Our business's success is grounded in customer care, which means we stand behind our products and services.

100⁺

Clients make use of
LG Sonic Ultrasound

60⁺

Countries

10K⁺

Units sold worldwide

12⁺

Industries served

10m

Invested in R&D

Data sets a day

About LG Sonic Contact

Award-Winning Innovation

Innovation Award for LG Sonic in sustainable algae control

BlueTech - LG Sonic award for sustainable method for Algae Control

Developed by leading researchers

LG Sonic has spent over a decade conducting research and development in collaboration with renowned academic institutions to be an expert in water industry.