Technological advancement for eliminating antibiotic resistance genes from wastewater: A review of their mechanisms and progress

Ezeuko, Adaora S.; Ojemaye, Mike O.; Okoh, Omobola O.; Okoh, Anthony I.

doi:10.1016/j.jece.2021.106183

Cited by 35 publications

(13 citation statements)

References 161 publications

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“…As current treatment cannot completely remove antibiotics, there are relatively high concentrations of antibiotic residues in the environment. At present, while urban wastewater treatment plants can effectively remove conventional organic pollutants and salts, antibiotics do not fall on the target list of pollutants to be removed, resulting in low removal efficiency [ 93 ]. Table 3 shows the antibiotic concentrations in the inflow and outflow of several wastewater treatment plants.…”

Section: Enhanced Removal Techniquesmentioning

confidence: 99%

Current Progress in Natural Degradation and Enhanced Removal Techniques of Antibiotics in the Environment: A Review

Zheng

Wang

Chen

et al. 2022

IJERPH

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Antibiotics are used extensively throughout the world and their presence in the environment has caused serious pollution. This review summarizes natural methods and enhanced technologies that have been developed for antibiotic degradation. In the natural environment, antibiotics can be degraded by photolysis, hydrolysis, and biodegradation, but the rate and extent of degradation are limited. Recently, developed enhanced techniques utilize biological, chemical, or physicochemical principles for antibiotic removal. These techniques include traditional biological methods, adsorption methods, membrane treatment, advanced oxidation processes (AOPs), constructed wetlands (CWs), microalgae treatment, and microbial electrochemical systems (such as microbial fuel cells, MFCs). These techniques have both advantages and disadvantages and, to overcome disadvantages associated with individual techniques, hybrid techniques have been developed and have shown significant potential for antibiotic removal. Hybrids include combinations of the electrochemical method with AOPs, CWs with MFCs, microalgal treatment with activated sludge, and AOPs with MFCs. Considering the complexity of antibiotic pollution and the characteristics of currently used removal technologies, it is apparent that hybrid methods are better choices for dealing with antibiotic contaminants.

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Section: Enhanced Removal Techniquesmentioning

confidence: 99%

Current Progress in Natural Degradation and Enhanced Removal Techniques of Antibiotics in the Environment: A Review

Zheng

Wang

Chen

et al. 2022

IJERPH

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“…Under the action of a coagulation, the suspended solids present in wastewater are aggregated into larger particles and precipitate, thereby removing many suspended solids from the wastewater and achieving wastewater treatment. Chemical coagulants include polyaluminum chloride, polyaluminum sulfate, aluminum hydroxide iron, polyferric chloride and ferric chloride ( 44 , 45 ). Studies have shown that treatment by coagulation and sedimentation provide successful removal of most ARGs in wastewater and that the abundance of ARGs can be reduced by 0.5–4.7 log ( 46 , 47 ).…”

Section: Efficacy Of Arg Removal By Livestock Wastewater Treatment Pr...mentioning

confidence: 99%

Removal of antibiotic resistance genes during livestock wastewater treatment processes: Review and prospects

Huang

Hong

et al. 2022

Front. Vet. Sci.

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Antibiotic resistance genes (ARGs) are emerging pollutants that have received extensive attention. Many different types of ARGs exist in livestock wastewater. If not effectively treated, they can threaten animal production, public health and the ecological safety of the surrounding environment. To address the high risk of livestock wastewater contamination by ARGs, the effects of different wastewater treatment processes on ARGs and their influencing factors and mechanisms are reviewed herein. Additionally, the current problems associated with removal of ARGs are discussed, and future research is proposed.

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“…During the past decades, the overuse or abuse of antibiotics has led to serious health problems and the "postantibiotic era". [1,2] Various strategies such as antibiotics (Sulfonamides, Aminoglycosides, Tetracyclines, and β-lactam), [3,4] through reversible binding of Lipopolysaccharide (LPS) to clay. [29] Besides, the dissolved Al of a kaolin-rich clay from the Colombian Amazon was proved toxic to bacteria.…”

Section: Introductionmentioning

confidence: 99%

Engineering Nanoclay Edges to Enhance Antimicrobial Property against Gram‐Negative Bacteria: Understanding the Membrane Destruction Mechanism by Contact‐Kill

Wang

Meng

Jiang

et al. 2022

Adv Funct Materials

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The overuse or abuse of antibiotics has led to serious health problems. During the recent decades, among the various methods used in antibacterial applications, some nanoclay minerals are proved antibacterial or inhibitory to the bacterial growth. However, the antibacterial mechanism of contact-kill based on the intrinsic structure of nanoclays is still unclear. Here, the antibacterial ability of pure clay is enhanced by creating more edge surfaces on kaolinite (Kaol) and the antibacterial mechanism is clarified at the atomic level. Based on experiments and density functional theory/molecular dynamics calculations, the positively charged Al(OH) and Al(OH 2 ) species on the edge surfaces of Kaol are confirmed to kill the Escherichia coli cells through direct contact by destroying their outer membrane (OM). The strong hydrogen bonding and van der Waals forces between OM and (110)/(11 10) surfaces of Kaol lead to the folding of OM. Simultaneously, the proton-coupled electron transfer between Lipopolysaccharide (LPS) and (11 10) edge surface of Kaol causes the dissociation of phosphoryl groups on LPS. Considering the similarities of most nanoclayson their edge surfaces, this finding may shed some light on the development of new nanoclay-based antibacterial materials in the future.

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Technological advancement for eliminating antibiotic resistance genes from wastewater: A review of their mechanisms and progress

Cited by 35 publications

References 161 publications

Current Progress in Natural Degradation and Enhanced Removal Techniques of Antibiotics in the Environment: A Review

Current Progress in Natural Degradation and Enhanced Removal Techniques of Antibiotics in the Environment: A Review

Removal of antibiotic resistance genes during livestock wastewater treatment processes: Review and prospects

Engineering Nanoclay Edges to Enhance Antimicrobial Property against Gram‐Negative Bacteria: Understanding the Membrane Destruction Mechanism by Contact‐Kill

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