TECHNOLOGY OF RECIRCULATING AQUACULTURE SYSTEMS WITH FLUCTUATION OPTIMIZATION

RAS-FO TECHNOLOGY IS A NEW APPROACH TO BUILDING COMPLEXES FOR HYDROBIONTS BREEDING IN CLOSED SYSTEMS.

TECHNOLOGY

 

RAS complex optimization

Collection of information about the state of equipment and water

Equipment condition forecast

 

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OBJECTIVES

 

Growth enhancement

operational costs reduction

capital investments reduction

 

 

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The following main aquaculture methods of sturgeon breeding exist today:

1

2

Breeding in flowing-water tanks or fish ponds.

Breeding in recirculating aquaculture systems.

Breeding in fish ponds and flowing-water tanks have much in common. Their major advantage is relatively low need for capital investments at the very beginning.

 

The main compelling issue is impossibility to maintain optimum water temperatures throughout the year in the course of breeding. The fastest growth is observed at a temperature of water equal to 24-25°C. As a consequence, sturgeon bred in fish ponds matures faster (8-10 years) than sturgeon bred in natural conditions (12-15 years). But still it is too long for an efficient business.

 

Another serious shortcoming is need for huge volumes of clean flowing water. For example, a farm producing 12 tons of caviar per year would need about 12,000 m3 of fresh water per hour or 228,0000 m3 per day that should be supplied from reliable sources.

Such a farm requires significant capital investments at the very beginning. However, a decision to use recirculating aquaculture systems is based on their advantages. With such an approach a fish farm represents a complex compact structure inside a thermally insulated building in which water is constantly circulating.

 

Water is subject to mechanical and biological treatment. After that it is disinfected by ultraviolet and saturated with oxygen. The optimal chemical composition of water and its temperature is automatically maintained. This approach allows to remove all toxic products of fish metabolism from water and achieve the best water parameters in tanks throughout the year. It will allow to increase the rate of sturgeon growth and maturation by two times, i.e. extract caviar from the hybrid starting with the fourth year of breeding and caviar from Russian sturgeon starting with the sixth year of breeding. It should be noted that a farm producing 35 tons of caviar per year requires fresh water in the amount of up to 3,600 m3 per day.

 

RAS design was developed based on our own technologies that are the best ones in this area. Much attention was paid to safety, minimization of labor cost for operation and power consumption. Requirements for the qualification of workforce were also reduced. Issues related to fish product processing were solved considering the schedule of sturgeon breeding and market needs in compliance with European standards.

Benefits of technology “Recirculating aquaculture system with fluctuation optimization” (RAS-FO)

1,5-2x

40%

300%

hydrobionts breeding

of costs for operation

of capital investments in equipment

rate of

reduction

reduction

Click here to know how RAS works

RAS

RAS design was developed based on our own technologies that are the best ones in this area. Much attention was paid to safety, minimization of labor cost for operation and power consumption.

All developments in the area of RAS are combined in a single technological package “Recirculating aquaculture system with fluctuation optimization” (RAS-FO) protected by 26 patents, certificates and applications for an invention.

RAS-FO technological procedures allow to:

 

  • Optimize the structural construction of RAS complexes.
  • Collect and process information parameters from technological equipment that is a part of a RAS as well as sensors that send signals about the current state of the water environment to monitor the status of equipment and water composition.
  • Forecast the technical state of equipment and select the most favorable scenarios, including sending of single commands for special modes of water parameters adjustment and setting water levels in RAS tanks.

RAS-FO is designed to achieve the following major goals:

 

  • Increase in the rate of hydrobionts breeding by 1.5-2 times and minimal losses in the process of a lifecycle.
  • Reduction of operational costs by 30-40% by means of high-performance equipment, i.e. an increase in service hours by 2-4 times and a decrease in power consumption by 1.5-2 times.
  • Reduction of capital investments in equipment by 200-300% by means of an increase in brood stock density per square meter by 2-3 times.

According to independent expert agency PIT SVETOVANJE d.o.o. RAS-FO technology costs

95 551 000

EUR

CAVIAR Biosistem d.o.o.

Trubarjeva cesta 7, 8310

Šentjernej

SLOVENIA