High removal efficiency of antibiotic resistance genes in swine wastewater via nanofiltration and reverse osmosis processes

Lan, Lihua; Kong, Xianwang; Sun, Hongwei; Li, Changwei; Liu, Dezhao

doi:10.1016/j.jenvman.2018.10.073

Cited by 120 publications

(49 citation statements)

References 17 publications

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“…Membrane separation technology has been widely applied in various industries because of its advantages, such as low energy consumption, no phase transition, and easy to scale up [1,2]. This technology is a promising solution for removal of the emerging contaminants [3].…”

Section: Introductionmentioning

confidence: 99%

The effect of Merpol surfactant on the morphology and performance of PES/PVP membranes: antibiotic separation

2019

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The present study used modified nanofiltration (NF) membranes to remove the emerging contaminant of amoxicillin (AMX) from synthetic wastewater. For this purpose, Merpol surfactant and polyvinylpyrrolidone were added to the casting solutions to prepare flat sheet asymmetric polyethersulfone (PES) NF membranes through phase inversion process. Then, the effect of adding Merpol surfactant at different concentrations on the morphology, hydrophilicity, and pure water flux (PWF) of the membranes, as well as the separation of AMX from aqueous solutions was investigated. The characteristics of the prepared membranes were studied by scanning electron microscopy (SEM), field emission scanning electron microscopy (FESEM), contact angle (CA) measurement and performance tests. The obtained results approved the improved hydrophilicity of the PES membranes after adding Merpol surfactant to the casting solution. The findings also revealed a gradual increase in the average size of the membrane pores in sub-layer and thinner top layer, proportional to the increase of surfactant content in the solution. The results also confirmed the increase of PWF under the influence of surfactant increase. As a result, for the membrane containing 8 wt% Merpol additive, the lowest CA (52.08°), the highest PWF (76.31 L/m 2 h), and maximum AMX excretion (97%) were achieved.

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Section: Introductionmentioning

confidence: 99%

The effect of Merpol surfactant on the morphology and performance of PES/PVP membranes: antibiotic separation

2019

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“…Total DNA (including intracellular and extracellular DNA) from each 2 ml sample was precipitated using ethanol solutions ( V Sample / V 3M NaAc / V Ethanol , 10:1:23) as per a previously described precipitation method (Lan, Kong, Sun, Li, & Liu, 2019; Zhang et al, 2017). The pellet was then subjected to routine DNA extraction using an E.Z.N.A.…”

Section: Methodsmentioning

confidence: 99%

“…A standard curve with five points was generated for qPCR using 10‐fold serial dilution of the quantified plasmids. Plasmids carrying these target genes were prepared as described previously (Lan et al, 2019). Each reaction was performed in triplicate (in parallel).…”

Section: Methodsmentioning

confidence: 99%

Investigation of reduction in risk from antibiotic resistance genes in laboratory wastewater by using O₃, ultrasound, and autoclaving

Lan

Xie

Kong

et al. 2020

Water Environment Research

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Biological laboratory wastewater containing both antibiotic‐resistant bacteria (ARB) and antibiotics is a potential source of antibiotic resistance genes (ARGs). Thus, we determined the efficacy of autoclaving, a common disinfection method, in eliminating 5 ARGs (sul1, sul2, tetW, tetM, amp) and the integrase‐encoding gene intI1 from laboratory wastewater. Autoclaving (15 min, 121°C) inactivated all bacteria including ARB, whereas ARGs persisted in the wastewater with limited reduction even after 60 min of treatment. Ozonation (O3), ultrasound (US), O3/US, and autoclaving followed by O3 were investigated for their ability to reduce ARGs in laboratory wastewater. With O3 and O3/US, the reduction rate ranged from 5.44 to 7.13 log for all ARGs investigated. Wastewater treatment with US alone did not reduce ARGs under the present experimental conditions (150 W, 53 kHz). Among the four treatments, autoclaving followed by O3 treatment showed the highest reduction rates in the shortest time; however, further optimization and investigation are needed for the advanced treatment of bio‐laboratory wastewater. Overall, this study provides novel insights into ARG sources and demonstrates that advanced oxidation methods can be useful to optimize laboratory wastewater treatment for ARG inactivation. Practitioner points Bio‐laboratory wastewater is potential reservoir of ARGs. Conventional autoclaving was not able to reduce ARGs to a low level. Autoclaving‐O3 completely eliminate all the bacteria. Autoclaving‐O3 reduced ARGs efficiently (6.12–7.86 logs removal in 60 min).

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“…In addition, membrane technology could also be used for the removal of other pollutants in breeding wastewater. Lan et al found that nanofiltration and reverse osmosis processes can be used to treat swine wastewater and can effectively remove various ARGs, nitrogen, phosphorus, and other pollutants [ 71 ]. Therefore, further studies on the application of membrane technology to remove antibiotics from breeding wastewater were to be conducted.…”

Section: Treatment Technologiesmentioning

confidence: 99%

A Review of Processes for Removing Antibiotics from Breeding Wastewater

Huang

Yan

Lin

et al. 2021

IJERPH

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Antibiotic pollution has become an increasingly serious issue due to the extensive application of antibiotics, their resistance to removal, and the harmful effects on aquatic environments and humans. Breeding wastewater is one of the most important sources of antibiotics in the aquatic environment because of the undeveloped treatment systems in breeding farms. It is imperative to establish an effective antibiotic removal process for breeding wastewater. This paper reviews the treatment methods used to remove antibiotics from breeding wastewater. The mechanisms and removal efficiency of constructed wetlands, biological treatments, advanced oxidation processes (AOPs), membrane technology, and combined treatments are explained in detail, and the advantages and disadvantages of the various treatment methods are compared and analyzed. Constructed wetlands have high removal rates for sulfonamide (SM), tetracycline (TC), and quinolone (QN). The antibiotic removal efficiency of biological treatment methods is affected by various processes and environmental factors, whereas AOPs and combined treatment methods have better antibiotic removal effects. Although it has broad application prospects, the application of membrane technology for the treatment of antibiotics in breeding wastewater needs further research.

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High removal efficiency of antibiotic resistance genes in swine wastewater via nanofiltration and reverse osmosis processes

Cited by 120 publications

References 17 publications

The effect of Merpol surfactant on the morphology and performance of PES/PVP membranes: antibiotic separation

The effect of Merpol surfactant on the morphology and performance of PES/PVP membranes: antibiotic separation

Investigation of reduction in risk from antibiotic resistance genes in laboratory wastewater by using O₃, ultrasound, and autoclaving

A Review of Processes for Removing Antibiotics from Breeding Wastewater

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High removal efficiency of antibiotic resistance genes in swine wastewater via nanofiltration and reverse osmosis processes

Cited by 120 publications

References 17 publications

The effect of Merpol surfactant on the morphology and performance of PES/PVP membranes: antibiotic separation

The effect of Merpol surfactant on the morphology and performance of PES/PVP membranes: antibiotic separation

Investigation of reduction in risk from antibiotic resistance genes in laboratory wastewater by using O3, ultrasound, and autoclaving

A Review of Processes for Removing Antibiotics from Breeding Wastewater

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Investigation of reduction in risk from antibiotic resistance genes in laboratory wastewater by using O₃, ultrasound, and autoclaving