Experimental Aquaponic Setup using supernatant from anaerobic remineralization practices

The Potential of Anaerobic Remineralization in Aquaponic Systems

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As you guys might have noticed, we are currently running an experiment on the anaerobic remineralization potential of RAS-derived fish sludge. In order to clarify open questions regarding the impact of anaerobic effluents on plant growth, we have conducted a small experiment. In that experiment we compared the lettuce growth (as well as shoot:root ratios) for lettuces grown in RAS water that has been supplemented with either anaerobic or aerobic fish sludge supernatant.  The experimental setup can be seen in Figure 1. Read more

COST Aquaponics Training School Belgium

COST Aquaponics Conference and further Plans

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Yes – we are still alive, and no – we did not forget about posting on Developonics. We are currently just busy with publishing our research as well as already planing new aquaponics related projects. What else have we done? In March, Simon has been presenting the model on decoupled aquaponic systems that he developed at the COST Aquaponics Conference “Research Matters”. Unlike in one-loop recirculating aquaponics systems, decoupled two- or three-loop systems (i.e. comprising of a RAS & hydroponic system, or RAS, hydroponic, and remineralization system respectively) follow the principle of a one-way nutrient flow. This makes it possible to ensure optimal conditions for both fish and plants; i.e. the fish are held in optimal RAS conditions, and the hydroponic water can be supplemented with macro- and micronutrients to ensure an optimal nutrient solution. Read more

Digestion Experiment at ZHAW

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Simon, Boris, and Zala are currently preparing some aquaponics experiments at ZHAW in Wädenswil (Switzerland). Two of them comprise sludge digestion for nutrient and water recycling. We hope to see the performance of both digster types on the nutrient dynamics on the system. The results will be published in a open access peer-review journal. Below some pictures of motivated young scientists. 🙂

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