Water treatment, aeration and temperature control
Pure and simple Monitoring and maintaining water quality is a crucial part of aquaculture
W
ater quality and factors like dissolved oxygen levels are vital for fish farmers, whether land-based or marine. In this feature, we look at three of the ground-breaking products now on offer. Alvestad Marin was founded in 2003 by Runar Alvestad, with the aim of providing technical and prac�cal solu�ons for the aquaculture industry. The company is based in Oslo and products range from a robot-operated hatchery system to AutoOx, a fully automated system which regulates oxygen levels in water as part of Alvestad’s “GasBuster” system. Now, Alvestad Marin has launched an “almost RAS” concept for land-based fish farming. The idea is to reduce water usage through a “high re-use” system without a biofilter. The system can manage water recycling as much as 90-95%, adding oxygen and removing CO2 and par�cles, as well as controlling temperature. The company says: “There is currently great interest in land-based fish farming, and many are considering building new facili�es. As a result of new technical requirements, there are also a number of established
NEW
CompHatch 2020 ®
Market leading hatchery has been improved! Hatching tray and EasyHatch substrate are molded together in one unit Less components for easier service and cleaning Replaced water tubes with channels to improve water distribution The water pipes have been replaced with built-in water channel
Below: Aquaturu Skaermbilled Opposite: The Alvestad alsmost RAS
WATCH THE
VIDEO!
CompHatch 2020 is AutoTend Ready!
Compact trays are designed for integration with AutoTend, automatic egg and fry tending robot.
facili�es that are planning upgrades in the near future. If one does not have unlimited access to water, it will be natural to consider solu�ons that provide opportuni�es for increased produc�on capacity and be�er u�lisa�on of the water source as part of the upgrade.” Also making use of new technology is Aquaturu, a Danish technology company which has developed innova�ve and environmentally friendly water treatment solu�ons that can help secure sustainable land-based fish farming. The company has introduced a new and revolu�onary method to reduce bacteria, viruses, parasites and algae in freshwater fish farming facili�es. Aquaturu’s water treatment technology helps eliminate the problems of the land-based aquaculture industry by lowering bacteria, parasites and algae in plants, leading to lower costs and thus higher returns. The result, the company believes, is efficient sustainable and responsible aquaculture produc�on. The technology uses a controlled electrical field in the waterflow, which kills and prevents the prolifera�on of a wide range of microscopic organisms including bacteria, viruses, parasites and algae. The equipment works even in very dirty water, without a pre-filtra�on required, and it means the use of chemical treatments can be greatly reduced. Aquaturu aims to supply units by Q2 of this year. Bioflo, produced by Warden Biomedia, is a durable, rugged and highly efficient media
See AutoTend in action at
alvestad.com/en/produkter/autotend/
For more information contact us today
alvestad.com/en
50 HI_ALVESTAD_CompHatch_JANFEB2021_SVA.indd 1
INTRO Water Treatment, Aeration & Temperature Control.indd 50
www.fishfarmermagazine.com 2020-10-29 9:27 AM
11/01/2021 15:55:52
