Application of a biosorbent to soil: a potential method for controlling water pollution by pesticides

Environmental Science and Pollution Research International
Alba Álvarez-MartínMaría J Sánchez-Martín

Abstract

Different strategies are now being optimized to prevent water from agricultural areas being contaminated by pesticides. The aim of this work was to optimize the adsorption of non-polar (tebuconazole, triadimenol) and polar (cymoxanil, pirimicarb) pesticides by soils after applying the biosorbent spent mushroom substrate (SMS) at different rates. The adsorption isotherms of pesticides by three soils and SMS-amended soils were obtained and the adsorption constants were calculated. The distribution coefficients (K d) increased 1.40-23.1 times (tebuconazole), 1.08-23.7 times (triadimenol), 1.31-42.1 times (cymoxanil), and 0.55-23.8 times (pirimicarb) for soils amended with biosorbent at rates between 2 and 75 %. Increasing the SMS rates led to a constant increase in adsorption efficiency for non-polar pesticides but not for polar pesticides, due to the increase in the organic carbon (OC) content of soils as indicated by K OC values. The OC content of SMS-amended soils accounted for more than 90 % of the adsorption variability of non-polar pesticides, but it accounted for only 56.3 % for polar pesticides. The estimated adsorption of SMS-amended soils determined from the individual adsorption of soils and SMS was more consistent with...Continue Reading

References

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Citations

Jan 31, 2017·The Science of the Total Environment·Alba Álvarez-MartínM Sonia Rodríguez-Cruz
Feb 19, 2017·Ecotoxicology and Environmental Safety·J M Marín-BenitoM J Sánchez-Martín
Jun 21, 2020·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Mohammed Umar MustaphaMohamed Yunus Abd Shukor
Oct 8, 2020·Environmental Science and Pollution Research International·Begoña MayansEnrique Eymar
Aug 28, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Marcin SiekUrszula Wojcieszek

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