Estudio preliminar de la biodegradación de una mezcla de residuos plásticos pulverizados de origen doméstico en una matriz de suelo a escala laboratorio

Abstract

Plastic materials have been the innovation of the twentieth century thanks to properties such as: durability, versatility and low costs. Due to its negative impact on the environment, final disposal strategies are required that minimize damage to ecosystems. The present investigation evaluated the biodegradation of pulverized household plastic waste (PP, PE and PS) in soil, by measuring the CO2 produced, it obtained biodegradation of 6.38, 8.75 and 9.53%, using native microorganisms, bioaugmentation and biostimulation respectively in 172 days. Through the monitoring of the microbial population, significant changes were observed for the populations of Pseudomonas spp, Actinomyces spp, molds and yeasts, indicating the growth of these. Toxicological tests performed on plant and animal organisms, showed no toxic effect.