Reagent-free technology for intensifying the process of growing microgreens in aquaponic systems

Abstract

An assessment is made of the current state of the global food security, which arises as a result of new challenges, in order to achieve the UN Sustainable Development Goals. Currently, aquaponic technologies are considered quite promising for providing regional consumers with food (hydrobionts and phytoproducts). Reagent-free technologies for intensifying plant growth and development (electromagnetic influence, ultrasonic waves, corona discharge) are analyzed. The use of installations for the electrolysis treatment of aqueous solutions for growing hydrobionts before feeding them into hydroponic modules is substantiated. The results indicate a significant increase in plant productivity by more than 30% after electrochemical treatment. Changes in the hydrochemical and hydrophysical properties of water after electrolysis are analyzed. A scheme of an aquaponic system for intensifying reagent-free electrolysis of growing microgreen plants is proposed and verified. It is substantiated that further research should be aimed at building process-control systems in aquaponic installations and creating specialized energy-efficient DC power supplies.