|
Aquaponic Systems - Application
UVI has designed a commercial-scale aquaponic system for the production of tilapia and vegetables
System Design - Four fish rearing tanks, 2,060 gallons each
- Two cylindro-conical clarifiers, 1,000 gallons each
- Four filter tanks, 185 gallons each
- One degassing tank, 185 gallons
- Six hydroponic tanks, 3,000 gallons each
- Total plant growing area, 2,300 ft2
- One sump, 160 gallons
- Base addition tank, 55 gallons
- Total water volume, 29,000 gallons
- Land area – 1/8th acre
Tank Dimensions -
Rearing tanks: Diameter: 10 ft, Height: 4 ft, Water volume: 2,060 gallon
- Clarifiers: Diameter: 6 ft, Height of cylinder: 4 ft, Depth of cone: 3.5 ft,
- Slope: 45 degrees, Water volume: 1,000 gallons
- Filter and degassing tanks: Length: 6 ft, Width: 2.5 ft, Depth: 2 ft,
- Water volume: 185 gallons
- Hydroponic tanks: Length: 100 ft, Width: 4 ft, Depth: 16 inches,
- Water volume: 3,000 gallons
- Sump: Diameter: 4 ft, Height: 3 ft, Water volume: 160 gallons
- Base addition tank: Diameter: 2 ft, Height: 3 ft, Water volume: 50 gallons
- Total system water volume: 29,375 gallons
- Flow rate 100 gpm
- Pump: ½ hp
- Blowers: 1½ hp (fish) and 1 hp (plants)
- Total land area: 1/8th acre
Operation
|
Aeration
|
Feeding
|
|
·
A floating polytube manifold contain 22 air
stones (6 in x 1.5 in x 1.5 in)
·
Clean air stones every week with high water
pressure and replace another set of air stones that has been dried for a week
·
Install manifold loosely so it does not touch
tank sides or else feed will accumulate between manifold and side wall
·
Cut threads into manifold and use Teflon tape
as nipples are screwed into manifold
·
Use plastic ties or wire for extra security so
that a nipple will not dislodge
·
If a nipple pops out, air to the other lines
will be cut off and fish can die
|
·
Feed three times daily with floating feed.
·
Use complete diet with 32% protein, ¼ inch
pellets
·
Feed ad libitum an amount of feed fish
can consume in 30 minutes
·
When fish finish feed faster increase ration
by 100 g per feeding
·
If feeding takes longer than 30 minutes,
reduce feed ration
·
Aeration around perimeter of tank keeps feed
in the middle of tank and it is not splashed out of tank during the feeding
frenzy
|
Production
|