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פותח על ידי קלירמאש פתרונות בע"מ -
Changes in Antibiotic Resistance Gene Levels in Soil after Irrigation with Treated Wastewater: A Comparison between Heterogeneous Photocatalysis and Chlorination
Year:
2020
Authors :
מראנו, רוברטו
;
.
סיטרין, אדי
;
.
Volume :
54
Co-Authors:

Zammit, I. - Department of Civil Engineering, University of Salerno, Via Giovanni Paolo II 132, Fisciano, 84084, Italy.  
Marano, R.B.M. - Department of Soil Chemistry, Plant Nutrition and Microbiology, Institute of Soil, Water and Environmental Sciences, Volcani Center, Agricultural Research Organization, Israel; Department of Agroecology and Plant Health, Robert H. Smith Faculty of Agriculture, Food and Environment, Hebrew University of Jerusalem, Rehovot, 761001, Israel.
Vaiano, V. - Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II 132, Fisciano, 84084, Italy.   
Rizzo, L. - Department of Civil Engineering, University of Salerno, Via Giovanni Paolo II 132, Fisciano, 84084, Italy.

Facilitators :
From page:
7677
To page:
7686
(
Total pages:
10
)
Abstract:

Wastewater (WW) reuse is expected to be increasingly indispensable in future water management to mitigate water scarcity. However, this increases the risk of antibiotic resistance (AR) dissemination via irrigation. Herein, a conventional (chlorination) and an advanced oxidation process (heterogeneous photocatalysis (HPC)) were used to disinfect urban WW to the same target of Escherichia coli <10 CFU/100 mL and used to irrigate lettuce plants (Lactuca sativa) set up in four groups, each receiving one of four water types, secondary WW (positive control), fresh water (negative control), chlorinated WW, and HPC WW. Four genes were monitored in water and soil, 16S rRNA as an indicator of total bacterial load, intI1 as a gene commonly associated with anthropogenic activity and AR, and two AR genes blaOXA-10 and qnrS. Irrigation with secondary WW resulted in higher dry soil levels of intI1 (from 1.4 × 104 copies/g before irrigation to 3.3 × 105 copies/g after). HPC-treated wastewater showed higher copy numbers of intI1 in the irrigated soil than chlorination, but the opposite was true for blaOXA-10. The results indicate that the current treatment is insufficient to prevent dissemination of AR markers and that HPC does not offer a clear advantage over chlorination.

Note:
Related Files :
antibacterial activity
Halogenation
irrigation
Soils
Wastewater
עוד תגיות
תוכן קשור
More details
DOI :
10.1021/acs.est.0c01565
Article number:
0
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
48534
Last updated date:
02/03/2022 17:27
Creation date:
30/06/2020 13:28
You may also be interested in
Scientific Publication
Changes in Antibiotic Resistance Gene Levels in Soil after Irrigation with Treated Wastewater: A Comparison between Heterogeneous Photocatalysis and Chlorination
54

Zammit, I. - Department of Civil Engineering, University of Salerno, Via Giovanni Paolo II 132, Fisciano, 84084, Italy.  
Marano, R.B.M. - Department of Soil Chemistry, Plant Nutrition and Microbiology, Institute of Soil, Water and Environmental Sciences, Volcani Center, Agricultural Research Organization, Israel; Department of Agroecology and Plant Health, Robert H. Smith Faculty of Agriculture, Food and Environment, Hebrew University of Jerusalem, Rehovot, 761001, Israel.
Vaiano, V. - Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II 132, Fisciano, 84084, Italy.   
Rizzo, L. - Department of Civil Engineering, University of Salerno, Via Giovanni Paolo II 132, Fisciano, 84084, Italy.

Changes in Antibiotic Resistance Gene Levels in Soil after Irrigation with Treated Wastewater: A Comparison between Heterogeneous Photocatalysis and Chlorination

Wastewater (WW) reuse is expected to be increasingly indispensable in future water management to mitigate water scarcity. However, this increases the risk of antibiotic resistance (AR) dissemination via irrigation. Herein, a conventional (chlorination) and an advanced oxidation process (heterogeneous photocatalysis (HPC)) were used to disinfect urban WW to the same target of Escherichia coli <10 CFU/100 mL and used to irrigate lettuce plants (Lactuca sativa) set up in four groups, each receiving one of four water types, secondary WW (positive control), fresh water (negative control), chlorinated WW, and HPC WW. Four genes were monitored in water and soil, 16S rRNA as an indicator of total bacterial load, intI1 as a gene commonly associated with anthropogenic activity and AR, and two AR genes blaOXA-10 and qnrS. Irrigation with secondary WW resulted in higher dry soil levels of intI1 (from 1.4 × 104 copies/g before irrigation to 3.3 × 105 copies/g after). HPC-treated wastewater showed higher copy numbers of intI1 in the irrigated soil than chlorination, but the opposite was true for blaOXA-10. The results indicate that the current treatment is insufficient to prevent dissemination of AR markers and that HPC does not offer a clear advantage over chlorination.

Scientific Publication
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