Aquaculture projects in Chile

Local production context

• ▸The industry has moved decisive volume into land-based post-smolt production, so freshwater RAS is the growth area rather than additional sea-site capacity.
• ▸Regulatory and welfare scrutiny — density limits, mortality reporting, sea-lice management — makes monitoring, oxygenation redundancy and handling systems purchasing requirements.
• ▸Remote southern sites raise the value of reliability, service coverage and spare-part availability over headline equipment price.
• ▸Processing and cold chain are export-driven, with plate freezing, IQF and value-added lines on a planned replacement cycle.

Chile project questions, answered

What equipment does a post-smolt RAS facility require?

Mechanical filtration (typically drum filters), biological filtration sized to the daily feed load, CO2 degassing, oxygenation with backup, UV or ozone disinfection, temperature control, pumping, sludge handling and a control system with alarms. Sizing follows from peak biomass and daily feed input, not tank volume alone — and emergency oxygen and power backup are part of the base design, not an upgrade.

How much water does a RAS system exchange?

Recirculating systems typically replace only a small percentage of system volume per day, with the exact figure set by the biofilter's nitrogen removal, CO2 stripping capacity and the water-quality target for the species and life stage. Lower exchange increases treatment duty — the trade-off must be designed, not assumed.

What should a salmon cage RFQ include?

Site exposure data (wave, current, depth), planned biomass per site, cage circumference and net depth, mooring conditions, feed barge capacity, and the monitoring and welfare systems required by the operating licence.