They invent an aquaculture device to help small fish farmers increase their aquaculture yield

Fajar Sidik and Abdullah Kelana from the KTH Royal Institute of Technology in Sweden invent Banoo, an affordable and integrated aquaculture technology that helps small-scale aquaculturists increase their yield. But also to promote sustainable aquaculture and solve water quality problems. To create their invention, they were inspired by a poor and small fish farmer from Yogyakarta, Indonesia, named Pak Sadi. During an interview with this fish farmer, they identified the crucial problem that concerns the whole profession: the degradation of water quality due to unsustainable aquaculture practices. This degradation leads to an increase in the amount of ammonia and a decrease in dissolved oxygen in the pond. The consequence being that the fish die and further impoverish the fish farmers who are 2.2 million in Indonesia. Banoo could therefore guarantee them a better future. Presentation.

Banoo what is it exactly?

Banoo is an integrated aquaculture technology, consisting of a microbubble aerator, an IoT water quality sensor and a mobile application, which enables increase the amount of dissolved oxygen in water up to 10 ppm. It has been proven that the performance of fish farmers can increase by 78% compared to other technologies.

Banoo, a microbubble aerator, an IoT sensor and a mobile application. Photo credit: Banoo

How does Banoo work?

Banoo is based on three main technologies: the microbubble aerator, the IoT sensor and the mobile application. The microbubble aerator is an aeration technology capable of produce bubbles of 40 microns in water and increase dissolved oxygen (DO) up to 10 ppm. Concretely, when the water pump starts, it sucks water through the suction pipe and then evacuates it through the delivery pipe. The pressure difference created by the water flow causes the air outside to be drawn into the pipe and into the nozzle. The air then passes through a porous pipe which produces micro-bubbles and oxygenates the water. The microbubble aerator is automated by an IoT sensor which collects data and informs in real time, which allows fish farmers to adjust the water flow if necessary. The Banoo is also automatic: as soon as the level of oxygen in the water is too low, it triggers on its own, then switches off when the level is high enough.

Why is it different?

In aquaculture, there are already different types of aerators such as the paddle wheel aerator, the blower aerator, the turbojet aerator or the venturi aerator. Blowing models are cheap and quite economical. However, they can only increase oxygen up to 3 ppm, and cover small areas. Paddle wheel and venturi aerators have a wider coverage area, but they can only increase dissolved oxygen up to 5 ppm. In addition, they are expensive and very energy-intensive. As for turbojet aerators, they increase oxygen by 7 ppm, but are far too expensive for small fish farmers. Banoo would therefore amplify the oxygen in the water by 10 ppm over an area of ​​approximately 70 m² with a consumption of only 100W. The Banoo 500W potentially covers 500 m² of pond while remaining at an affordable price for fish farmers. More information:

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