Reclamation of Real Urban Wastewater Using Solar Advanced Oxidation Processes

An Assessment of Microbial Pathogens and 74 Organic Microcontaminants Uptake in Lettuce and Radish

Yelitza Aguas, Margarita Hincapie, Ana Belén Martínez-Piernas, Ana Agüera, Pilar Fernández-Ibáñez, Samira Nahim-Granados, María Inmaculada Polo-López

Resultado de la investigación: Contribución a una revistaArtículoInvestigaciónrevisión exhaustiva

Resumen

In this study, disinfection of urban wastewater (UWW) with two solar processes (H2O2 -20 mg/L and photo-Fenton 10 mg/L-Fe2+/20 mg/L-H2O2 at natural water pH) at pilot scale using a 60 L compound parabolic collector reactor for irrigation of two raw-eaten vegetables (lettuce and radish) has been investigated. Several microbial targets (total coliforms, Escherichia coli, Salmonella spp., and Enterococcus spp.) naturally occurring in UWW and 74 organic microcontaminants (OMCs) were monitored. Disinfection results showed no significant differences between both processes, showing the following inactivation resistance order: Salmonella spp. < E. coli < total coliforms < Enterococcus spp. Reductions of target microorganisms to concentrations below the limit of detection (LOD) was achieved in all cases with cumulative solar UV energy per volume (QUV) ranged from 12 to 40 kJ/L (90 min to 5 h). Solar photo-Fenton showed a reduction of 66% of OMCs and solar/H2O2 of 56% in 5 h treatment. Irrigation of radish and lettuce with solar treated effluents, secondary effluents, and mineral water was performed for 6 and 16 weeks, respectively. The presence of bacteria was monitored in surfaces and uptake of leaves, fruit, and also in soil. The bacterial concentrations detected were below the LOD in the 81.2% (lettuce) and the 87.5% (radish) of the total number of samples evaluated. Moreover, uptake of OMCs was reduced above 70% in crops irrigated with solar treated effluents in comparison with secondary effluents of UWW.

Idioma originalInglés
PublicaciónEnvironmental Science and Technology
DOI
EstadoPublicada - 1 ene 2019

Huella dactilar

Reclamation
Pathogens
Effluents
Wastewater
pathogen
effluent
oxidation
Oxidation
Salmonella
Disinfection
Irrigation
disinfection
Escherichia coli
irrigation
Mineral Waters
Vegetables
Fruits
Microorganisms
vegetable
Crops

Citar esto

Aguas, Yelitza ; Hincapie, Margarita ; Martínez-Piernas, Ana Belén ; Agüera, Ana ; Fernández-Ibáñez, Pilar ; Nahim-Granados, Samira ; Polo-López, María Inmaculada. / Reclamation of Real Urban Wastewater Using Solar Advanced Oxidation Processes : An Assessment of Microbial Pathogens and 74 Organic Microcontaminants Uptake in Lettuce and Radish. En: Environmental Science and Technology. 2019.
@article{0ade944cb6a041d191978531db30d2ce,
title = "Reclamation of Real Urban Wastewater Using Solar Advanced Oxidation Processes: An Assessment of Microbial Pathogens and 74 Organic Microcontaminants Uptake in Lettuce and Radish",
abstract = "In this study, disinfection of urban wastewater (UWW) with two solar processes (H2O2 -20 mg/L and photo-Fenton 10 mg/L-Fe2+/20 mg/L-H2O2 at natural water pH) at pilot scale using a 60 L compound parabolic collector reactor for irrigation of two raw-eaten vegetables (lettuce and radish) has been investigated. Several microbial targets (total coliforms, Escherichia coli, Salmonella spp., and Enterococcus spp.) naturally occurring in UWW and 74 organic microcontaminants (OMCs) were monitored. Disinfection results showed no significant differences between both processes, showing the following inactivation resistance order: Salmonella spp. < E. coli < total coliforms < Enterococcus spp. Reductions of target microorganisms to concentrations below the limit of detection (LOD) was achieved in all cases with cumulative solar UV energy per volume (QUV) ranged from 12 to 40 kJ/L (90 min to 5 h). Solar photo-Fenton showed a reduction of 66{\%} of OMCs and solar/H2O2 of 56{\%} in 5 h treatment. Irrigation of radish and lettuce with solar treated effluents, secondary effluents, and mineral water was performed for 6 and 16 weeks, respectively. The presence of bacteria was monitored in surfaces and uptake of leaves, fruit, and also in soil. The bacterial concentrations detected were below the LOD in the 81.2{\%} (lettuce) and the 87.5{\%} (radish) of the total number of samples evaluated. Moreover, uptake of OMCs was reduced above 70{\%} in crops irrigated with solar treated effluents in comparison with secondary effluents of UWW.",
author = "Yelitza Aguas and Margarita Hincapie and Mart{\'i}nez-Piernas, {Ana Bel{\'e}n} and Ana Ag{\"u}era and Pilar Fern{\'a}ndez-Ib{\'a}{\~n}ez and Samira Nahim-Granados and Polo-L{\'o}pez, {Mar{\'i}a Inmaculada}",
year = "2019",
month = "1",
day = "1",
doi = "10.1021/acs.est.9b00748",
language = "Ingl{\'e}s",
journal = "Environmental Science and Technology",
issn = "0013-936X",

}

Reclamation of Real Urban Wastewater Using Solar Advanced Oxidation Processes : An Assessment of Microbial Pathogens and 74 Organic Microcontaminants Uptake in Lettuce and Radish. / Aguas, Yelitza; Hincapie, Margarita; Martínez-Piernas, Ana Belén; Agüera, Ana; Fernández-Ibáñez, Pilar; Nahim-Granados, Samira; Polo-López, María Inmaculada.

En: Environmental Science and Technology, 01.01.2019.

Resultado de la investigación: Contribución a una revistaArtículoInvestigaciónrevisión exhaustiva

TY - JOUR

T1 - Reclamation of Real Urban Wastewater Using Solar Advanced Oxidation Processes

T2 - An Assessment of Microbial Pathogens and 74 Organic Microcontaminants Uptake in Lettuce and Radish

AU - Aguas, Yelitza

AU - Hincapie, Margarita

AU - Martínez-Piernas, Ana Belén

AU - Agüera, Ana

AU - Fernández-Ibáñez, Pilar

AU - Nahim-Granados, Samira

AU - Polo-López, María Inmaculada

PY - 2019/1/1

Y1 - 2019/1/1

N2 - In this study, disinfection of urban wastewater (UWW) with two solar processes (H2O2 -20 mg/L and photo-Fenton 10 mg/L-Fe2+/20 mg/L-H2O2 at natural water pH) at pilot scale using a 60 L compound parabolic collector reactor for irrigation of two raw-eaten vegetables (lettuce and radish) has been investigated. Several microbial targets (total coliforms, Escherichia coli, Salmonella spp., and Enterococcus spp.) naturally occurring in UWW and 74 organic microcontaminants (OMCs) were monitored. Disinfection results showed no significant differences between both processes, showing the following inactivation resistance order: Salmonella spp. < E. coli < total coliforms < Enterococcus spp. Reductions of target microorganisms to concentrations below the limit of detection (LOD) was achieved in all cases with cumulative solar UV energy per volume (QUV) ranged from 12 to 40 kJ/L (90 min to 5 h). Solar photo-Fenton showed a reduction of 66% of OMCs and solar/H2O2 of 56% in 5 h treatment. Irrigation of radish and lettuce with solar treated effluents, secondary effluents, and mineral water was performed for 6 and 16 weeks, respectively. The presence of bacteria was monitored in surfaces and uptake of leaves, fruit, and also in soil. The bacterial concentrations detected were below the LOD in the 81.2% (lettuce) and the 87.5% (radish) of the total number of samples evaluated. Moreover, uptake of OMCs was reduced above 70% in crops irrigated with solar treated effluents in comparison with secondary effluents of UWW.

AB - In this study, disinfection of urban wastewater (UWW) with two solar processes (H2O2 -20 mg/L and photo-Fenton 10 mg/L-Fe2+/20 mg/L-H2O2 at natural water pH) at pilot scale using a 60 L compound parabolic collector reactor for irrigation of two raw-eaten vegetables (lettuce and radish) has been investigated. Several microbial targets (total coliforms, Escherichia coli, Salmonella spp., and Enterococcus spp.) naturally occurring in UWW and 74 organic microcontaminants (OMCs) were monitored. Disinfection results showed no significant differences between both processes, showing the following inactivation resistance order: Salmonella spp. < E. coli < total coliforms < Enterococcus spp. Reductions of target microorganisms to concentrations below the limit of detection (LOD) was achieved in all cases with cumulative solar UV energy per volume (QUV) ranged from 12 to 40 kJ/L (90 min to 5 h). Solar photo-Fenton showed a reduction of 66% of OMCs and solar/H2O2 of 56% in 5 h treatment. Irrigation of radish and lettuce with solar treated effluents, secondary effluents, and mineral water was performed for 6 and 16 weeks, respectively. The presence of bacteria was monitored in surfaces and uptake of leaves, fruit, and also in soil. The bacterial concentrations detected were below the LOD in the 81.2% (lettuce) and the 87.5% (radish) of the total number of samples evaluated. Moreover, uptake of OMCs was reduced above 70% in crops irrigated with solar treated effluents in comparison with secondary effluents of UWW.

UR - http://www.scopus.com/inward/record.url?scp=85070866752&partnerID=8YFLogxK

U2 - 10.1021/acs.est.9b00748

DO - 10.1021/acs.est.9b00748

M3 - Artículo

JO - Environmental Science and Technology

JF - Environmental Science and Technology

SN - 0013-936X

ER -