Customized Professional Recirculating Aquaculture Systems

Customized Professional Recirculating Aquaculture Systems

Advantages of Recirculating Aquaculture System

1. Intensive Production

RAS applies to the broiler house or swine barn concept, so prevalent and effectively used in modern poultry and pork production systems, to rear large numbers of fish in a relatively small space.

This is an excellent alternative to open pond culture where low densities (extensive culture) of fish are reared free in large ponds and are subject to losses from diseases, parasites, predation, pollutants, stress, and seasonally suboptimal growing conditions.

2.Water and Land Conserved

RAS conserve both water and land. They maximize production in a relatively small area of land and use a relatively small volume of water. Since water is reused, the water volume requirements in RAS are only about 20% of what conventional open pond culture demands.

3. Location Flexibility

RAS are particularly useful in areas where land and water are expensive and not readily available. They require relatively small amounts of land and water. They are most suitable in northern areas where a cold or cool climate can slow fish growth in outdoor systems and prevent year-round production. RAS provide growers who are geographically disadvantaged because of a relatively short growing season (less than 200 days) or extremely dry (desert) conditions, a competitive, profitable, year-round fish production system. They can be located close to large markets (urban areas) and thereby reduce hauling distances and transportation costs. RAS can use municipal water supplies (dechlorination is necessary) and discharge waste into sanitary sewer systems. Nearly all species of food fish and sport fish that are commonly reared in ponds including catfish, tout, and striped bass can readily be grown in high densities when confined in tank systems.

4. Species and Harvest Flexibility

RAS are currently being used to grow catfish, striped bass, tilapia, crawfish, blue crabs, oysters, mussels, and aquarium pets. Indoor fish culture systems offer considerable flexibility to (1) grow a wide diversity of fish species, (2) rear a number of different species simultaneously in the same tank (polyculture) or different tanks (monoculture), (3) raise a variety of different sizes of one or several species to another depending on market demand and price.

Basic Equipment you need:

1. Drum Filter: Remove residual feed and fish feces in the water

2. Biological Filter: Convert toxic ammonia nitrogen into low toxic ammonium nitrate

3. Aeration separation: Remove harmful gas in the water (CO2, H2S etc.), and increasing oxygen

4. UV Sterilizer: To kill harmful bacteria in the water to avoid fish diseases and parasite

5. Water Temperature Controller: To adjust the water temperature to the most suitable growth temperature

Except above equipment, you can also put below equipment into your recirculating aquaculture system to meet a higher water quality standard.

1. Protein Skimmer: Remove more than 90% small suspension particle and soluble colloidal organic matter, can work as Ozone reaction tower, and inject Ozone to disinfect water.

2. Ozone Generator: Offer Ozone to disinfect water. It is a powerful oxidizing agent that can be used to break down compounds. Ozone must be used with caution since it is directly toxic to aquatic life and may form harmful biproducts (hypochlorite, hypobromite).

3. Residual Ozone Remover: To remove residual Ozone in the water, to avoid it poisons the fish.

4. Oxygen Generator + Oxygen Cone: Oxygen Generator produces Oxygen and Oxygen cone mix it into water, increase dissolving Oxygen amount.

5. Air Blower + Air Diffuser or Air Stone: Air blower blow air to air diffuser or air stone, increase dissolving Oxygen amount in fish tanks.

What information we needed to know to get a quotation of recalculating aquaculture system?

1. What species will be farmed in the RAS?

2. What’s the aquaculture water volume?

3. What’s the stocking rate? (how many kilograms in 1m3 aquaculture water)

4. What’s the recirculation rate (turnover time)? Recirculation rate (turnover time) is the amount of water exchanged per unit of time (e.g. 20m3/hr)

Our Service

1. Produce profession aquaculture system

2. Can provide customers with design support, on-site installation

3. After sale service: One year repair for free, maintenance for lifetime. Workers travel expense shall be borne by the buyer, or base on actual situation it can be shared with seller.