Mycoremediation of Atrazine in a Contaminated Clay-Loam Soil and its Adsorption-Desorption Kinetic Parameters

Wilberth Chan Cupul and Refugio Rodriguez Vazquez

A chapter in Soil Contamination - Current Consequences and Further Solutions from IntechOpen

Abstract: Clean-up of contaminated soils with atrazine is an ecological responsibility. The objectives of this study are to evaluate atrazine degradation in a clay-loam soil microcosm using fungal enzyme extracts from Trametes maxima and its co-culture with Paecilomyces carneus and to determine the kinetic parameters of the adsorption-desorption of atrazine in soil. Fungal co-culture extract (T. maxima-P. carneus) and monoculture (T. maxima) were able to degrade 100% of atrazine. However, we observed variation in atrazine degradation over the course of the evaluated time period, which suggests that an adsorption-desorption process is occurring in the soil. Adsorption-desorption kinetic parameters of the Freundlich model revealed that the studied soil has a significant capacity to adsorb atrazine (KF = 8.2148; r2 = 0.992 and P-value

Keywords: bioremediation; fungal enzyme extract; laccase; soil organic matter (search for similar items in EconPapers)
JEL-codes: Q57 (search for similar items in EconPapers)
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Persistent link: https://EconPapers.repec.org/RePEc:ito:pchaps:105675

DOI: 10.5772/64743

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