Alternative Approaches to Determine the Efficiency of Biomixtures Used for Pesticide Degradation in Biopurification Systems

Destination of pesticide residues on biobeds: State of the art and future perspectives in Latin America

“…Additional studies have involved the removal of highly recalcitrant products (Rodríguez- and complex pesticide mixtures (Masís-Mora et al, 2019). This group published a chapter in a Springer Protocols book that proposes methods to evaluate pesticide toxicity and biodegradation (Rodríguez-Rodríguez et al, 2018), including ecotoxicity tests as well as chemical and mineralization analysis for monitoring the biomixture efficiency throughout the maturation process.…”

“…The agricultural soil used in the biomixture provides the microbiota in charge of pesticide degradation. This natural microbiota is already adapted to pesticides exposure, when primed-soil is employed (G ongora-Echeverría et al, 2018;Rodríguez-Rodríguez et al, 2018). Regarding alternative materials to replace the use of wheat straw, Saez et al (2018) tested sugarcane bagasse, with positive results for lindane degradation.…”

“…That sensitivity allows to estimate detoxification, from the response of these organisms to the contact with the substrate from a contaminated biobed. Therefore, ecotoxicity tests combined to chemical analysis results allow to evaluate the environmental safety of contaminated and aged substrates (Masin et al, 2018;Rodríguez-Rodríguez et al, 2018).…”

“…However, when this happens while filling the spraying equipment or handling pesticide residues, it is called point-source contamination. Inadequate practices generate residues that may cause contamination of surface water, groundwater, soil and biota (Briceño et al, 2014;Rodríguez-Rodríguez et al, 2018). Through good agricultural practices, the contamination can be reduced or even avoided, and the biobed comprises one of those practices.…”