Ultrasonic Treatment for Dairy Ponds
Hydro Synergy’s ultrasonic units improve effluent pond clarity, reduce sludge and odour, extend pump life, and lower maintenance costs. This chemical-free solution is engineered specifically for long-term use in dairy pond environments.
Ultrasonic Deployment in Dairy Effluent Ponds
The diagram illustrates the typical placement of Hydro Synergy’s ultrasonic units within a dairy effluent treatment system.
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Dairy Shed: Effluent runoff originating from milking sheds and washdown areas flows into the effluent pond. This runoff contains high levels of organic matter, nutrients, and suspended solids.
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Effluent Pond: The pond collects and holds this effluent for treatment. Over time, solid waste settles at the bottom, forming the sludge zone.
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Sludge Zone: This layer consists of decomposing organic material and is a primary source of odour, gas emissions, and long-term sludge build-up if left unmanaged.
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Ultrasonic Device: Positioned on a solar-powered float or fixed platform, the ultrasonic unit is installed directly in the pond’s water column. It emits targeted sound frequencies that:
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Disrupt algal growth
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Reduce odour-causing biofilms
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Enhance solids settlement
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Improve pond clarity and reduce maintenance demand
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This setup is ideal for anaerobic or facultative pond types, supporting chemical-free, low-energy, and council-compliant dairy wastewater management.
Reduces biofilm and odour
Disrupt anaerobic gas-producing microbial activity
Enhances solids settling
done through acoustic agitation that accelerates floc formation
Lowers sludge accumulation
Improve organic decomposition without mechanical mixing
Improves effluent clarity
And, surface water quality for easier downstream use or discharge
Operates chemical-free
with low energy consumption using solar-powered deployment
Measured Results Delivered in
Dairy Effluent Ponds
Up to 70% reduction in suspended solids (TSS) within 30 days
Faster solids settlement minimises pumping wear and desludging frequency
Noticeable odour drop
≥ 40% reduction
in H₂S and VOC readings
Improves on-farm air quality and neighbour compliance.
Sludge build-up slowed by 25–35% year-on-year
Extends intervals between costly pond dredging or excavation.
Annual pump maintenance costs lowered by up to 30%
Clearer effluent reduces abrasion, cavitation, and clogging of transfer pumps.
Regulatory Compliance and
On-Farm Safety
Chemical-free technology
Generates no copper, alum, or peroxide residues. Satisfies regional council discharge consents under the NZ Resource Management Act (RMA).
Tested 20–250 kHz non-cavitation frequencies
No audible nuisance to livestock or staff; safe for aquatic life. Meets NZ animal-welfare guidelines and Worksafe noise limits.
IP 68, UV-stabilised HDPE & 316 SS construction
Corrosion-resistant and food-grade surfaces. Conforms to AS/NZS 4020 (materials for use in contact with water).
Low-voltage solar platform (< 48V DC)
Eliminates mains power hazards around water. Complies with AS/NZS 3000 electrical safety code.
Non-invasive installation
Floats drop-in; no pond-liner penetration required. Retains existing effluent-pond certification and avoids engineering re-sign-off.
Automated telemetry logging
Records TSS, temperature, and run-time data. Provides an audit trail for council or farm assurance reporting.
Industry Leaders Speak Out
Real-world successin dairy operations
Industries that Benefit from Dairy-Pond Ultrasonics
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