Aquaculture Water Reuse Solution

Aquaculture ponds generate large volumes of nutrient- and organic-rich wastewater. Many Australian pond-based aquaculture facilities, rely primarily on settlement ponds for wastewater management. While effective for solids settling, these systems do little to remove pathogens, dissolved organics, colour, odour, or microbial contaminants.

Our modular OHX Advanced Oxidation Process (AOP) system with polishing enables fish farms to reclaim a portion of pond water for internal reuse. This reduces fresh water extraction, supports stable pond operations, and improves sustainability metrics.

A single module of this modular system treats a 100 kL/day side-stream, allowing aquaculture farms to reclaim ~33 million Litres of high-quality water per year—without disrupting existing pond infrastructure.

Estimated Financial Gains (33 ML/year Case)*

- Treatment Capacity: 100 kL/day (33 ML/year)

- System CapEx: ~$180,000 (installed, skid mounted)

- Annual OpEx: ~$20,000/year

Annual Savings / Value:

- Fresh water replacement (33 ML × $2/kL): $66,000

- Reduced discharge fees/levies: $10,000

- Sustainability/brand value: $5,000

Total Annual Benefit: $81,000

Net Annual Benefit (after OpEx): $61,000*

Payback Period: ~3 years*

10-Year Net Benefit: Over $600,000*

*Estimated costs and earnings are based on one particular fish farm's case. Yours will be different! Might be more, might be less so to nail it down, get in touch.