Treatment of fish stick water with ceramic membranes

Production of high quality fish meal, saving energy and increasing production in fish processing and fish oil production pose new challenges for producers.

Membrane filtration to increase profitability

The fish processing industry can benefit using ceramic membrane filtration to address many challenges to increase profitability. Today the fish processing industry faces many challenges. The challenges vary depending on site location.

Advantages of atech ceramic membranes in treatment of fish stick water

  • Reduce energy consumption: possibility to eliminate evaporators
  • Ability to treat more waste material
  • Improves fishmeal quality by removing salts and Biogenic Amine
  • Reduction of environmental impact: less fish waste is discharged into the ocean
  • High reliability under difficult operating conditions
  • Long service life, high sustainability
  • Constant process stability
  • Low operating costs

Energy savings and reduction of trimethylamine

Ceramic membrane filtration resulted in 100% of the fishmeal being processed to be Grade A Meal. Previously, up to 30% of the production could not be sold because the corresponding specifications were not met. Energy savings up to 54% could be achieved by eliminating the use of evaporators. Up to 65% reduction of TMA chemical (Trimethylamine)


Channel Diameter (mm) Pore size Permeate performance (l/m²h) Temperature TMP Velocity in channel (m/s)
3-4 UF approx. 50 - 100 (depending on pollution level) uup to 80 °C up to 176 °F approx. 1,5 – 3 bar approx. 21,7 - 43,5 PSI approx. 4 - 6

Advantages and added value for the customer:

  • The ceramic membranes are capable of treating fish stick water in a stable long-term operation and the membranes were successfully regenerated.
  • Cleaning intervals were able to keep the FLUX value constant over a long period of time.
  • The ceramic membranes are chemical resistance – ready for use in a range between 0 – 14.