Estudio de la efectividad de un producto biotecnológico comercial para la desinfección de aguas de uso recreativo

Abstract

In this research it was decided to study the use of a commercial biotechnological product as a disinfectant and to compare it with two commercial chemicals such as calcium hypochlorite and colloidal silver for recreational waters. In the experimental phase, the concentration of each disinfectant was varied by identifying the ideal doses for each product (1%/L of the biotech product, 5,0x10-4 %/L of colloidal silver and 0,4%/L of calcium hypochlorite) And its optimal disinfection time (180, 120 and 45minutes respectively). Physicochemical parameters (conductivity, total hardness, alkalinity, pH, nitrites and nitrates) and microbiological parameters (total coliforms and aerobic mesophiles) were evaluated in three different samples of natural recreational waters and each product was evaluated before and after its use as treatment. A 100% effectiveness rate was obtained for the biotechnological product, 77,7% for the colloidal silver and 74% for the calcium hypochlorite, evaluated in compliance with Resolution 1618 of 2010. In the determination of effectiveness, That the treatment with chemicals generates changes in the physicochemical characteristics of the body of water, which does not happen with the biotechnological product with which a nonaffectation to the water resource would be guaranteed.