Occurrence and elimination of antibiotic resistance genes in a long-term operation integrated surface flow constructed wetland

Fang, Hansun; Zhang, Qin; Nie, Xiaoqin; Chen, Baowei; Xiao, Yong; Zhou, Qingwei; Liao, Wei; Liang, Ximei

doi:10.1016/j.chemosphere.2017.01.027

Cited by 112 publications

(52 citation statements)

References 46 publications

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“…The generation of anaerobic areas should help because the activity of microorganisms is reduced and the transfer of ARG is inhibited [99]. The presence of plants has proven efficient at removing ARGs in constructed wetlands [100]. The plant species selection deserves further research.…”

Section: Antibiotic-resistant Bacteria (Arb) and Antibiotic-resistantmentioning

confidence: 99%

Reactive Barriers for Renaturalization of Reclaimed Water during Soil Aquifer Treatment

Valhondo

Carrera

Martinez-Landa

et al. 2020

Water

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Managed aquifer recharge (MAR) is known to increase available water quantity and to improve water quality. However, its implementation is hindered by the concern of polluting aquifers, which might lead to onerous treatment and regulatory requirements for the source water. These requirements might make MAR unsustainable both economically and energetically. To address these concerns, we tested reactive barriers laid at the bottom of infiltration basins to enhance water quality improvement during soil passage. The goal of the barriers was to (1) provide a range of sorption sites to favor the retention of chemical contaminants and pathogens; (2) favor the development of a sequence of redox states to promote the degradation of the most recalcitrant chemical contaminants; and (3) promote the growth of plants both to reduce clogging, and to supply organic carbon and sorption sites. We summarized our experience to show that the barriers did enhance the removal of organic pollutants of concern (e.g., pharmaceuticals and personal care products). However, the barriers did not increase the removal of pathogens beyond traditional MAR systems. We reviewed the literature to suggest improvements on the design of the system to improve pathogen attenuation and to address antibiotic resistance gene transfer.

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Section: Antibiotic-resistant Bacteria (Arb) and Antibiotic-resistantmentioning

confidence: 99%

Reactive Barriers for Renaturalization of Reclaimed Water during Soil Aquifer Treatment

Valhondo

Carrera

Martinez-Landa

et al. 2020

Water

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“…For example, studies of ARGs in constructed wetlands show variant results. Some studies on constructed wetlands observed the efficient removal of ARGs (Chen et al, ; Fang et al, ), while others only observed a slight effect (Berglund et al, ; Hsu, Mitsch, Martin, & Lee, ). Regardless, our work may serve as a precedent for ARG research in the mangrove ecosystem.…”

Section: Discussionmentioning

confidence: 99%

“…Extensive researches show that different levels of antibiotic resistance genes (ARGs) exist in various aquatic environments, such as sewage treatment plants (Munir, Wong, & Xagoraraki, ), rivers (Ouyang, Huang, Zhao, Li, & Su, ), plateau lakes (Chen, Yuan, et al, ), constructed wetlands (Fang et al, ), and coastal industrial mariculture systems (Wang et al, ). Investigation of ARGs in 18 estuarine sediments across 4,000 km of coastal waters in China shows that there are 1 × 10 6 –1 × 10 8 copies of ARGs per 1 g of sediment (Zhu et al, ).…”

Section: Introductionmentioning

confidence: 99%

Prevalence and proliferation of antibiotic resistance genes in the subtropical mangrove wetland ecosystem of South China Sea

Zhao

Yan

et al. 2019

MicrobiologyOpen

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The emerging pollutants antibiotic resistance genes (ARGs) are prevalent in aquatic environments such as estuary. Coastal mangrove ecosystems always serve as natural wetlands for receiving sewage which always carry ARGs. Currently, the research considering ARG distribution in mangrove ecosystems gains more interest. In this work, we investigated the diversity of ARGs in an urban estuary containing mangrove and nonmangrove areas of the South China Sea. A total of 163 ARGs that classified into 22 resistance types and six resistance mechanisms were found. ARG abundance of the samples in the estuary is between 0.144 and 0.203. This is within the general range of Chinese estuaries. The difference analysis showed that abundances of total ARGs, six most abundant ARGs (mtrA, rpoB, rpoC, rpsL, ef‐Tu, and parY), the most abundant resistance types (elfamycin, multidrug, and peptide), and the most abundant resistance mechanism (target alteration) were significantly lower in mangrove sediment than that in nonmangrove sediment (p < 0.05). Network and partial redundancy analysis showed that sediment properties and mobile genetic elements were the most influential factors impacting ARG distribution rather than microbial community. The two factors collectively explain 51.22% of the differences of ARG distribution. Our study indicated that mangrove sediments have the capacity to remove ARGs. This work provides a research paradigm for analysis of ARG prevalence and proliferation in the subtropical marine coastal mangrove ecosystem.

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“…Wetlands. Constructed wetlands is a cost effective, environmentally friendly and energy efficient wastewater treatment technology (Carvalho et al, 2017).. Fang and coworkers (Fang et al, 2017) Other non-traditional approaches have also been evaluated to a limited extent (Ali et al, 2017, Hemeg, 2017.…”

Section: Disinfection Treatment By Disinfection Treatment Processesmentioning

confidence: 99%

Antimicrobial Resistance in the Environment

Waseem

Williams

Jameel

et al. 2018

Water Environment Research

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This review su mmarizes selected publications from 2017 highlighting the occurrence of antimicrobial resistance (AMR) genes in the environment with emphasis on the aquatic environment. The review also covers different treatment technologies being developed for AMR genes as an environmental contaminant. The progress made in the area of AMR gene databases and tools is also reviewed. Besides a brief introduction, the content is categorized into three main sections: i) Occurrence of AMR in the Environment, ii) Treatment technologies for AMR, and iii) AMR databases and tools.

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Occurrence and elimination of antibiotic resistance genes in a long-term operation integrated surface flow constructed wetland

Cited by 112 publications

References 46 publications

Reactive Barriers for Renaturalization of Reclaimed Water during Soil Aquifer Treatment

Reactive Barriers for Renaturalization of Reclaimed Water during Soil Aquifer Treatment

Prevalence and proliferation of antibiotic resistance genes in the subtropical mangrove wetland ecosystem of South China Sea

Antimicrobial Resistance in the Environment

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