Sistema de tratamento para solução hidropônica baseado em radiação ultravioleta

Abstract

This project presents a treatment method for hydroponic systems by ultraviolet (UV) radiation. The cultivation system chosen is NFT (Nutrient Film Techinique). Although hydroponics is a technique that requires less pest and disease control from traditional cultivation, there is still an incidence of fungi that hinder plant development and quality. In order to reduce the appearance of these pathogens, you can create a prototype to treat the nutrient solution using ultraviolet radiation. A germicidal UV lamp was installed inside the reservoir, with pH, conductivity and temperature sensors, in order to maintain greater control of the essential parameters for the nutrient solution. Then add to the reservoir or Pithyum fungus. After performing or experimenting, he performed laboratory tests to verify the efficiency of fungal treatment and to change the amount of iron present in the nutrient solution after exposure to UV radiation. These analyzes are reduced by approximately 98% in the incidence of fungi after 10 minutes of exposure and about 24% increase in iron concentration in the nutrient solution over 30 minutes of exposure.