Supplier Knowledge · Aeration Systems

Aeration Systems for Aquaculture — Buyer's Knowledge Page

Aeration keeps commercial farms alive. Choose aerators on Standard Aerator Efficiency (kg O₂/kWh) at your actual salinity, temperature and altitude — not the marketing datasheet.

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Typical applications

  • Shrimp and fish ponds (paddlewheel, splash, propeller-aspirator)
  • Fine-bubble diffusers for intensive tanks
  • Down-flow bubble contactors for high-DO RAS

Project sizes

  • Small ponds: <20 HP
  • Semi-intensive: 20–100 HP/ha
  • Super-intensive: 100+ HP/ha

Selection criteria

  • kg-O₂/kWh at your operating salinity
  • Depth and mixing pattern coverage
  • Motor IP rating and marine corrosion class
  • Noise, birds and biosecurity

Questions buyers should ask

  • What is the SAE / SOTR at my salinity?
  • What HP/ha do you recommend and why?
  • What is your mean time between failure in coastal conditions?

Common procurement mistakes

  • Buying by HP without oxygen transfer data
  • Ignoring altitude correction (0.15% loss per 100 m)
  • Under-sizing emergency aeration

RFQ recommendations

  • Tender against kg-O₂/hr required, not HP installed
  • Require third-party SOTR test data

Related tools & guides

Frequently asked questions

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