Download as PDF, PPTX
Uploaded byNazmus Anik
Aquaponics
Aquaponics is an integrated system combining aquaculture and hydroponics, where fish waste fertilizes plants while plants filter water for fish. Key components include fish tanks, grow beds, and various filtering systems, with suitable fish species such as tilapia and plants like leafy greens and herbs. This sustainable method allows continuous crop harvesting and can yield high production rates of both fish and vegetables year-round.
More Related Content
Aquaponics
- 1.
- 2. 2 • Introduction • Howit works • Components • Types & Design • Cultivable Species • Harvesting & Time period • Why Aquaponics
- 3.
- 4. The combination of aquaculture(raising fish) and hydroponics (the soil-less growing of plants) that grows fish and plants together in one integrated system. The fish waste provides an organic food source for the plants, and the plants naturally filter the water for the fish. 4
- 5.
- 6.
- 7. Components 1. Fish Tank 2.Clarifiers 3. Bio-filters 4. Oxygen Systems 5. Sump Tank 6. Stand Pipes 7. Grow Bed 8. Plants and Fish 9. Pump 10. Bell siphon
- 8.
- 9.
- 10. 10 Bio-filters Keeping the waterclean and balanced in your aquaponics system is essential to keep it running efficiently.
- 11.
- 12.
- 13.
- 14.
- 15.
- 16.
- 17.
- 18.
- 19.
- 20.
- 21. Media Based A media-filledbed system uses a tank or container that is filled with gravel, perlite or another media for the plant bed. This bed is periodically flooded with water from the fish tank. The water then drains back to the fish tank. All waste, including the solids, is broken down within the plant bed. Sometimes worms are added to the gravel-filled plant bed to enhance the break-down of the waste. This method uses the fewest components and no additional filtration, making it simple to operate.
- 22.
- 23.
- 24.
- 25. 25 25 Media Based Selfcleaning A media bed performs three filtering functions: Mechanical ( Solids removal): Constraint
- 26.
- 27. Nutrient Film Technique NFT(Nutrient Film Technique) is a method in which the plants are grown in long narrow channels. A thin film of water continuously flows down each channel, providing the plant roots with water, nutrients and oxygen. As with the raft system, water flows continuously from the fish tank, through filtration components, through the NFT channels where the plants are grown and then back to the fish tank. In NFT, a separate bio filter is required, however, because there is not a large amount of water or surface for the beneficial bacteria to live. In addition, the plumbing used in a hydroponic NFT system is usually not large enough to be used in aquaponics because the organic nature of the system and “living” water will cause clogging of small pipes and tubes.
- 28.
- 29.
- 30.
- 31. NFT Most important stepis that, the flow of the water from fish tank should be continued all the time.
- 32. Important Note forNFT- It is not suitable for all plants but best for leafy green vegetable. Such as NFT
- 33.
- 34.
- 35.
- 36.
- 37. Deep water Important Note: •Water ratio for fish tank and grow bed is 1:1 • In grow bed there should be an air pump for remaining current in water.
- 38. Cultivable Fish Species Fish thatwe have raised in aquaponics with good results: tilapia. blue gill/brim. sunfish. crappie. koi. fancy goldfish. pacu. various ornamental fish such as angelfish, guppies, tetras, swordfish, mollies
- 39. Cultivable Fish Species Other fishraised in aquaponics: • carp • barramundi • silver perch, golden perch • yellow perch • Catfish • Large mouth Bass
- 40. Cultivable Plants Plants thatwill do well in any aquaponic system: • any leafy lettuce • pak choi • kale • swiss chard • arugula • basil • mint • watercress • chives • most common house plants
- 41. Cultivable Plants Plants thathave higher nutritional demands and will only do well in a heavily stocked, well established aquaponics system: • tomatoes • peppers • cucumbers • beans • peas • squash • broccoli • cauliflower • cabbage
- 42. Stocking Density 106/𝒎 𝟑 forTilapia Varies from species to species 1.25 kg of fingerlings per 400 liter of water is very productive for most of the fishes.
- 43. Parameters Parameters Value Range WaterTemperature ( 0 C) 28-33 pH 8.07-8.53 Alkalinity 40-78 Nitrite-Nitrogen (mg/L) 0.01-0.50 Nitrate-Nitrogen (mg/L) 0.03-1.16 Dissolved oxygen (mg/L) 6.2-8.5
- 44. Fish Feed • Commercialfish feeds contain exact protein, carbohydrate & other vitamin according to the requirements of specific fish • Plant proteins can include soya meal, corn meal, wheat meal etc • Most of the feeds are between 10-35% protein • Alternative feeds should be considered like duckweed, insects, worms or black soldier fly larvae • Fish meal based feed needs to be avoided as this source is not sustainable
- 45. Feeding Fish • On anaverage, fish eat about 1.5-2% of their body weight daily • If 35-40 kg fish in the system, daily feed required 0.525-0.6 kg • Don’t just rely on the calculation, observation need to determine the proper amount of fish. • Fish don’t eat in cold and extreme temperature
- 46. Aurum Tons/ha/5 months Red amaranth Tons/ha/5months Tomato Tons/ha/ season Ladies finger Tons/ha/season Lettuce Tons/ha/ 4 months 19.44 5.87 127.74 102.62 571.53 Fish & vegetable production Fish production: 116-142 tons/ha/ 115-150 days One notable thing is that the vegetable grown in aquaponics system not only grows well but fruiting time is longer than the soil grown vegetable.
- 47. Continuous Harvests, 365days per year The vegetable crops from these systems can be harvested daily to meet market demand 365 days/year. Each commercial system uses multiple fish tanks for staggered harvesting. With tilapia that means you will harvest a tank full of fish every 4 or 6 months.
- 48.
- 49. 49 Why Aquaponics 6 78 9 10
- 50. Tips & Tricks • Regularwash gravel media before putting in the system otherwise , it will get dirty • Test pH • Use of air pump to bubble out chlorine and chloramine from tap water • Never use cleaning products, pesticides, fertilizers like substances. • Avoid direct sun light on fish tank. • Never change more than 35% of water at a time. It will destroy bacteria growth. • Cover the out door plants during scorching summer sun. • Make sure to available for pumps and aerators.
- 52.