Removal of antibiotic resistance genes in various water resources recovery facilities

Date

2020-06-01

Author

Kucukunsal, Serkan
İçgen, Bülent

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

199
views

0
downloads

Water resources recovery facilities (WWTPs) are hotspots for antibiotic resistance genes (ARGs) and pose a significant threat to environments. Therefore, ARG removal efficiencies of WWTPs are of great importance. In this study, conventional activated sludge (CAS), biological nutrient removal (BNR), sequencing batch reactor (SBR), membrane bioreactor (MBR), package MBR, and WWTP with coagulation-flocculation and UV disinfection units were investigated in terms of their removal efficiencies on overall bacterial genes with 16S rDNA and seven ARGs including the genes aadA, bla(CTX-M), cmlA, ermB, sul1, tetA, and qnrS corresponding to commonly used antibiotics aminoglycosides, beta-lactams, amphenicols, macrolides-lincosamides-streptogramins, sulfonamides-trimethoprim, tetracyclines, and quinolones, respectively. Seasonal abundance of overall genes and ARGs in influents and effluents of each WWTPs was determined by quantitative polymerase chain reaction. Membrane bioreactor and package MBR systems showed the highest removal efficiency up to 5-log reductions. Seasonal changes affected ARG removal efficiencies of BNR and CAS significantly (p < 0.05). The lowest log reductions were determined in summer for BNR and in both autumn and winter for CAS. The abundance of the genes increased in sludge treatment of CAS. In all WWTPs tested, ARG removal rates were correlated with the 16S rDNA gene removal (p > 0.05). The results elucidated that the removal mechanism was not ARG-specific. Practitioner points

Subject Keywords

Water Science and Technology, Environmental Chemistry, General Medicine

URI

https://hdl.handle.net/11511/41158

Journal

WATER ENVIRONMENT RESEARCH

DOI

https://doi.org/10.1002/wer.1286

Collections

Department of Environmental Engineering, Article

Suggestions

OpenMETU
Core

Control of trichloroethylene emissions from sparging systems by horizontal bio- and chemo-barriers Tezel, U; Demirer, Göksel Niyazi; Uludag-Demirer, S (Informa UK Limited, 2005-02-01) The scope of this study was to develop a continuous system to clean-up a trichloroethylene (TCE) contaminated gas stream, where biotic and abiotic removal mechanisms are undertaken sequentially simulating the horizontal bio- and chemo-barriers proposed for the in-situ remediation of the contaminated sites. The bio- and chemo-barriers were simulated by using glass columns packed with granular anaerobic mixed culture and Fe(0) filings, respectively. The effect of gas residence time, which is adjusted by the g...
Modeling biogeochemical dynamics in porous media: Practical considerations of pore scale variability, reaction networks, and microbial population dynamics in a sandy aquifer King, E. L.; Tuncay, Kağan; Ortoleva, P.; Meile, C. (Elsevier BV, 2010-03-01) Prediction of the fate and environmental impacts of groundwater contaminants requires the identification of relevant biogeochemical processes and necessitates the macroscopic representation of microbial activity occurring at the microscale. Using a well-studied sandy aquifer environment, we evaluate the importance of pore distribution on organic matter respiration in a porous medium environment by performing spatially explicit simulations of microbial metabolism at the sub-millimeter scale. Model results us...
Assessment of seawater intrusion in a coastal aquifer by using correlation, principal component, and factor analyses Karahanoğlu, Nurkan (Wiley, 1997-05-01) Hydrogeochemical characterization of the Erzin Plain coastal aquifer has been accomplished in this research to investigate the spatial and transient behavior of its water quality. The aquifer is located along the Mediterranean coast and forms one of the most productive aquifers in Turkey. Chemical analyses of groundwater samples collected from the aquifer during 1964-1968 (128 samples), May 1993 (30 samples), October 1993 (37 samples), and June 1994 (20 samples) constitute the available groundwater quality ...
Performance of ozone and peroxone on the removal of endocrine disrupting chemicals (EDCs) coupled with cost analysis Ölmez Hancı, Tuğba; Dogruel, S.; Emek, A. D. Allar; Yilmazer, C. Eropak; Cinar, S.; Kiraz, O.; Citil, E.; Orhon, A. Koc; Siltu, E.; Gucver, S. M.; Ozgun, O. Karahan; Tanık, Ayşe Gül; Yetiş, Ülkü (IWA Publishing, 2020-08-01) Micropollutants such as endocrine disruptors are one of the most important groups of chemicals polluting water resources. Conventional treatment systems may not be effective for the removal of endocrine disrupting chemicals (EDCs), and the fate of these chemicals should be carefully monitored in the effluent of wastewater treatment plants (WWTPs). Additional treatment methods such as advanced oxidation processes can be used for the removal of endocrine disruptors. This study presents the existence of endocr...
Modification of a Conventional Anaerobic Digester for Improving the Effluent and Sludge Characteristics Uludag-Demirer, S.; Demirer, Göksel Niyazi; Othman, M. (Wiley, 2009-12-01) The aim of this study was to enrich the composition of anaerobic digester sludge in terms of nitrogen and phosphorus by struvite (MgNH4PO4) formation. Waste activated sludge was anaerobically digested in batch reactors under the conditions that the minimum stoichiometric requirement for struvite formation was satisfied in all reactors. For this purpose, different amounts of magnesium (Mg2+) and phosphate (PO43-) ions were added initially to the batch reactors. The results showed the effects of adding Mg2+ a...

Citation Formats

S. Kucukunsal and B. İçgen, “Removal of antibiotic resistance genes in various water resources recovery facilities,” WATER ENVIRONMENT RESEARCH, pp. 911–921, 2020, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/41158.