The main Removal Mechanism of Organic micropollutants and Organisms in an Irrigation System using Untreated Wastewater

DOI: 10.22161/ijeab/4.2.27

Keyword: Endocrine disrupting chemicals, pharmaceuticals, removal mechanisms, soil, unintentional wastewater reuse.

Abstract: The presence of organic micropollutants on residual water used for irrigation is common in development countries, and their human impacts and the ecological consequences are still completely unknown. The aim of this study was to determine the main mechanisms involved during removal of three organic compounds (carbamazepine, ibuporfen, and 4-nonylphenol), and three usually pathogenic organisms (Escherichia coli, Giardia lamblia and Ascaris lumbricoides) contained in untreated wastewater dumped to agricultural soil, based on laboratory studies with inoculated soil, as well as the corroboration with field measurements. The results suggest adsorption and biodegradation as the predominant processes responsible for the removal of all contaminants analyzed, reporting efficiencies greater than 95% during the first 30 cm of the soil depth. Nevertheless, the efficiency depends on the type of pollutant, and also the physicochemical characteristics of the soil. For ibuprofen and 4-nonylphenol occurs mostly by biodegradation, and the adsorption of carbamazepine is associated with the organic matter content, while E. coli is adsorbed to the clay fraction of the soil. Finally, G. lambia and A. lumbricoides removal is due to different processes from adsorption such as colloidal filtration.

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Page No: 436-443

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Alma C. Chávez-Mejía, Rafael Magaña-López, Juan Carlos Durán-Álvarez, Blanca Elena Jiménez-Cisneros et al."The main Removal Mechanism of Organic micropollutants and Organisms in an Irrigation System using Untreated Wastewater". International Journal of Environment Agriculture and Biotechnology(ISSN: 2456-1878),vol 4, no. 2, 2019, pp.436-443 AI Publications doi:10.22161/ijeab/4.2.27

Alma C. Chávez-Mejía, Rafael Magaña-López, Juan Carlos Durán-Álvarez, Blanca Elena Jiménez-Cisneros, P.(2019).The main Removal Mechanism of Organic micropollutants and Organisms in an Irrigation System using Untreated Wastewater. International Journal of Environment Agriculture and Biotechnology(ISSN: 2456-1878).4(2), 436-443.10.22161/ijeab/4.2.27

Alma C. Chávez-Mejía, Rafael Magaña-López, Juan Carlos Durán-Álvarez, Blanca Elena Jiménez-Cisneros, P.(2019).The main Removal Mechanism of Organic micropollutants and Organisms in an Irrigation System using Untreated Wastewater. International Journal of Environment Agriculture and Biotechnology(ISSN: 2456-1878).4(2), pp.436-443.

Alma C. Chávez-Mejía, Rafael Magaña-López, Juan Carlos Durán-Álvarez, Blanca Elena Jiménez-Cisneros. 2019."The main Removal Mechanism of Organic micropollutants and Organisms in an Irrigation System using Untreated Wastewater". International Journal of Environment Agriculture and Biotechnology(ISSN: 2456-1878).4(2):436-443.Doi:10.22161/ijeab/4.2.27

Alma C. Chávez-Mejía, Rafael Magaña-López, Juan Carlos Durán-Álvarez, Blanca Elena Jiménez-Cisneros."The main Removal Mechanism of Organic micropollutants and Organisms in an Irrigation System using Untreated Wastewater", International Journal of Environment Agriculture and Biotechnology,vol.4,no. 2, pp.436-443,2019.

@article { almac.chávez-mejía2019the,
title={The main Removal Mechanism of Organic micropollutants and Organisms in an Irrigation System using Untreated Wastewater},
author={Alma C. Chávez-Mejía, Rafael Magaña-López, Juan Carlos Durán-Álvarez, Blanca Elena Jiménez-Cisneros , R},
journal={International Journal of Environment Agriculture and Biotechnology},
volume={4},
year= {2019} ,
}