Chemical-free cyanobacteria suppression for safer recreation, stronger community trust, and lower reactive remediation.
Lake Ultrasonic Algae Control (CSR)
Hydro Synergy applies low-power Critical Structural Resonance (CSR) ultrasound to suppress cyanobacteria and nuisance algae, reduce bloom persistence, and support clearer water without chemical dosing, dredging, or disruptive mechanical works. Outcomes are site dependent and guided through assessment, configuration, and monitoring.
Serving distributors in lake management, reservoir water quality, and environmental technology markets.
Home > Applications > Lake
This application page is designed for:
Lake Owners & Operators
Evaluate whether non-chemical ultrasonic lake algae control is suitable for your site through an assessment-led pathway focused on cyanobacteria risk, recreational use, and informed deployment decisions.
Environmental & Recreational Distributors
Partner to deliver ultrasonic algae control solutions for lakes and reservoirs using a repeatable, assessment-led deployment model for councils, lake authorities, and environmental water projects.
Consultants & Project Managers (WSP/Beca/GHD etc.)
A spec-friendly solution that supports lake remediation designs without adding chemical or dredging risk.
Council & Lake-Trust Decision Makers
Support recreational lake water quality and reduce cyanobacteria-related closures and complaints through non-chemical lake algae management designed for public-access lakes.
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Industry-level Environmental & Recreational ultrasonic solutions are covered on the
Why cyanobacteria becomes an operational risk in lakes
Public health warnings and lake closures
Reputational damage and community trust loss
Emergency remediation and ongoing testing costs
Tourism and local business disruption
How CSR ultrasound works in lakes?
CSR targets buoyant cyanobacteria by disrupting gas vesicles. Cells lose buoyancy, sink out of the photic zone, and bloom persistence reduces. CSR also disrupts biofilm adhesion and supports natural settling of suspended solids, improving aesthetics and reducing infrastructure biofouling.
Deployment Strategy (site-specific)
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Cyanobacterial speciation (microscopy or qPCR)
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Bathymetric and flow mapping
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Nutrient profiling + historical bloom records
Typical placements:
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Land-based solar or SolaRAFTs (line of sight for sonic efficacy)
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Along inflow points (pre-treat nutrient entry)
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Near intake heads (protect downstream assets)
Ultrasonic control scope for lakes
Cyanobacteria Control
Suppresses buoyant cyanobacteria, reducing surface scums and bloom persistence.
Water Clarity Improvement
Supports clearer water appearance and improved visual amenity over time.
Biofilm Reduction
Limits biofilm formation on intake structures, weirs, and lake infrastructure.
Sediment & Nutrient Support
Disrupts internal nutrient cycling linked to settled algal biomass.
What Hydro Synergy CSR Does Not Replace
Hydro Synergy’s ultrasonic lake algae control system is designed to support cyanobacteria management and water quality improvement, but it does not replace the following lake management requirements:
Catchment nutrient management programs
Regulatory lake water quality monitoring
Farm-specific lice management strategies
Mandatory physical lake works
Long-term lake restoration still requires nutrient load reduction, land-use controls, and upstream runoff management.
Councils and lake authorities must continue cyanobacteria testing, toxin monitoring, and compliance reporting as required by environmental regulators.
Councils and lake authorities must continue cyanobacteria testing, toxin monitoring, and compliance reporting as required by environmental regulators.
Where specified, inflow engineering, dredging, aeration, or structural remediation must still be implemented as part of an approved lake management plan.
Hydro Synergy CSR ultrasound is applied as a non-chemical algae control solution that integrates into existing lake restoration strategies, rather than replacing statutory or catchment-wide interventions.
Technical Benefits of Ultrasonic Algae Control in Lakes
CSR Ultrasonic Range
Broad-spectrum ultrasonic algae control using CSR frequencies designed for lake water treatment applications.
Non-Chemical Treatment
A chemical-free lake algae control system that operates without dosing, substrates, or physical disturbance.
Solar-Ready Deployment
Supports off-grid ultrasonic lake treatment using solar-ready configurations for remote or sensitive sites.
Silent Continuous Operation
Provides continuous ultrasonic lake management with silent operation suitable for public and cultural environments.
Commercial & Deployment Pathway
Step 1: Lake Assessment
Initial lake algae assessment to evaluate cyanobacteria risk, site conditions, and suitability for ultrasonic treatment.
Step 2: Site Profiling
Detailed lake water quality profiling, including bloom history, bathymetry, and deployment mapping.
Step 3: Ultrasonic Trial
Controlled ultrasonic lake algae control trial to validate performance under real site conditions.
If you require ESG or sustainability reporting alignment, we can define the trial metrics and documentation format during assessment.
For Environmental & Recreational Distributors
If you distribute ultrasonic algae control technologies for lakes and reservoirs, this application is structured to support lake algae control projects delivered to councils, lake authorities, and environmental operators.
Distributor discussions cover:
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Territory and market focus for lake and reservoir algae control
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Assessment-led ultrasonic lake treatment deployment
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Training, technical support, and partner enablement
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Commercial structure for non-chemical lake management solutions
Regulatory, Safety & Operational Alignment
Chemical-Free Operation
No chemical dosing is introduced, supporting non-chemical lake treatment requirements where ecological or public-use sensitivity applies.
Electrical & System Safety
Low-power ultrasonic systems are deployed in line with standard electrical safety and operational requirements for public and remote environments.
Aquatic & Ecological Considerations
Designed for continuous operation without cavitation effects, supporting ecological safety expectations in lakes and recreational waterways.
Operational Compatibility
Deployment is structured to integrate with normal lake operations and monitoring programs, without disrupting existing management activities.
Improve Operational Control of Algae in Lakes
If you are assessing non-chemical lake algae control solutions for cyanobacteria management, recreational water quality, or council-managed lakes, a site assessment is the first step to determine suitability and deployment approach.
Hydro Synergy’s CSR ultrasonic lake treatment is applied through an assessment-led, trial-based pathway, supporting informed decision-making before commercial deployment.
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Talk to Our Environmental & Recreational Water Team
Whether you’re a council, lake authority, environmental consultant, or distributor evaluating non-chemical lake algae control, Hydro Synergy supports CSR ultrasonic solutions for lakes and recreational waterways through an assessment-led, deployment-ready approach.
Our team works with stakeholders responsible for cyanobacteria management, recreational water quality, and long-term lake stewardship.
Contact us directly at support@hydrosynergy.co.nz.
Local Number: 0800 NoAlgae
or WhatsApp us at: +64 21 445 777