Abstract One pilot-scale portable Nutrient Film Technique (NFT) aquaponic system has been designed, developed, and tested at ICAR-CIFA, Bhubaneswar for a period of 90 days (October to December 2018) to study the efficiency of the new design. The experimental setup has three separate units, each consisting of four major components, such as Fibreglass Reinforced Plastic (FRP) round fish culture tank (o2.15 × 0.9 m) with operational capacity 2800 L, biofilter unit made up of Polypropylene (PP) of 100 L capacity, FRP rectangular hydroponics tank (4 × 0.9 × 0.35 m) having 2.64 m2 plantation area and High-density Polyethylene (HDPE) sump (o0.6 × 0.7 m) of 200 L capacity. Implementation of custom designed and calibrated automatic water recirculation system gives an average flow rate of 94.7 L/h for continuous flow of nutrients from fish culture tank to hydroponics tank. The designed system harnesses gravity flow in 75 % of the cycle. For performance assessment, the system was initially stocked with 54 numbers of fish fry/m3 (153.7 g/m3) of pangas (Pangasius hypophthalmus) in culture tank and 27 marigold (Tagetes erecta) plants/m2 in hydroponics tank. Length and weight gain of fish were by 77.04 % and 397.2 % from initial, respectively, and marigold plant harvested 107 number of flowers/m2. The Total Ammoniacal Nitrogen (TAN) reduction in biofilter was found to be 61.97 %.

中文翻译：

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便携式和流线型营养膜技术 (NFT) 鱼菜系统的设计和开发

摘要 在布巴内斯瓦尔 ICAR-CIFA 设计、开发和测试了一个中试规模的便携式营养膜技术 (NFT) 鱼菜共生系统，为期 90 天（2018 年 10 月至 2018 年 12 月），以研究新设计的效率。实验装置有三个独立的单元，每个单元由四个主要部件组成，例如玻璃纤维增​​强塑料 (FRP) 圆形鱼类养殖罐 (o2.15 × 0.9 m)，操作容量为 2800 L，由聚丙烯 (PP) 组成的生物过滤器单元100 升容量，玻璃钢矩形水培罐（4 × 0.9 × 0.35 米），种植面积为 2.64 平方米，高密度聚乙烯 (HDPE) 水槽（o0.6 × 0.7 米），容量为 200 升。定制设计和校准的自动水再循环系统的实施提供了 94 的平均流速。7 L/h 养分从养鱼池到水培池的连续流动。设计的系统在 75% 的循环中利用重力流。为了进行性能评估，系统最初在养殖池中放养了 54 条鱼苗/m3 (153.7 g/m3) pangas (Pangasius hypophthalmus) 和 27 株万寿菊（Tagetes terminatea）植物/m2 在水培池中。鱼的体长和体重分别比初始增加了 77.04% 和 397.2%，万寿菊植株收获了 107 朵花/m2。发现生物过滤器中的总氨氮 (TAN) 减少了 61.97%。7 g/m3) 的 pangas (Pangasius hypophthalmus) 在培养罐中和 27 株万寿菊 (Tagetes standa) 植物/m2 在水培罐中。鱼的体长和体重分别比初始增加了 77.04% 和 397.2%，万寿菊植株收获了 107 朵花/m2。发现生物过滤器中的总氨氮 (TAN) 减少了 61.97%。7 g/m3) 的 pangas (Pangasius hypophthalmus) 在培养罐中和 27 株万寿菊 (Tagetes standa) 植物/m2 在水培罐中。鱼的体长和体重分别比初始增加了 77.04% 和 397.2%，万寿菊植株收获了 107 朵花/m2。发现生物过滤器中的总氨氮 (TAN) 减少了 61.97%。