Antibiotic-metal complexes in wastewaters: fate and treatment trajectory

Khurana, Pratishtha; Pulicharla, Rama; Brar, Satinder Kaur

doi:10.1016/j.envint.2021.106863

Cited by 88 publications

(16 citation statements)

References 181 publications

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“…The present work described the interaction among MPs, Cr metal, and BP-type UV filters. It is worth noting that several other classes of pharmaceuticals and personal care products (PPCPs), such as antibiotics and nonsteroidal anti-inflammatory drugs (NSAIDs), are also able to form stable coordination complexes with transition metals. − With the growing evidence of the co-occurrence and interactions of MPs, heavy metals, and PPCPs in aquatic systems, ,,, elucidating the transformation mechanisms of metal–organic complexes by MP particles, together with toxicity assessments, under various conditions (e.g., types of polymers and metals) appears to be an important and urgent research challenge in the studies of MP–metal interactions.…”

Section: Resultsmentioning

confidence: 99%

Sorption Behavior, Speciation, and Toxicity of Microplastic-Bound Chromium in Multisolute Systems

Law

et al. 2022

Environ. Sci. Technol. Lett.

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The unexpectedly high affinity of microplastics (MPs) for heavy metals has attracted increasing attention in recent years. However, there is a scarcity of information on the effects of coexisting constituents on plastic–metal interactions, especially in terms of metal speciation. This study aimed to explore the role of benzophenone-type UV filters on the sorption, oxidation state, and toxicity of chromium (Cr) by pristine and UV-irradiated polystyrene MPs (PSMPs). Results showed that Cr uptake by PSMPs was remarkably higher when UV filters were present. This enhanced affinity was attributed to the formation of Cr–UV filter complexes together with multilayer sorption on PSMPs’ surfaces. Subsequent chemical state measurements indicated alteration of the oxidation state of MP-bound metals as a higher Cr(VI) abundance was identified on the PSMPs with coexisting UV filters. More importantly, our toxicity assessments found that PSMP-bound Cr with a higher oxidation state displayed more severely inhibited microalgae growth. It is noteworthy that toxicological effects of Cr–UV filter complexes were observed only with PSMPs, which thus reaffirms the unique role of MPs in accumulating and transforming contaminants in natural environments. Overall, this study provides the first evidence into the effects of coexisting constituents on the oxidation states and toxicities of MP-bound heavy metals.

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Section: Resultsmentioning

confidence: 99%

Sorption Behavior, Speciation, and Toxicity of Microplastic-Bound Chromium in Multisolute Systems

Law

et al. 2022

Environ. Sci. Technol. Lett.

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“…Recently, a report suggested that interactions between antimicrobials and heavy metals influenced toxic effects; for example, the complexation of Cu 2+ /Cd 2+ with chlortetracycline produced antagonistic toxicity to cyanobacteria [ 103 ]. In addition, some studies have revealed that residues in the environment of tetracycline and sulfonamides could bind metal ions such as Fe 2+ /Cu 2+ formation of antimicrobial-metal complexes, which had more serious persistence and toxicity [ 104 , 105 ]. Not only that, but the photodegradation of enrofloxacin was impeded by iron complexation [ 106 ].…”

Section: The Usage and Fate Of Antimicrobials In The Environmentmentioning

confidence: 99%

Antimicrobial and the Resistances in the Environment: Ecological and Health Risks, Influencing Factors, and Mitigation Strategies

Wang

Weng

Luo

et al. 2023

Toxics

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Antimicrobial contamination and antimicrobial resistance have become global environmental and health problems. A large number of antimicrobials are used in medical and animal husbandry, leading to the continuous release of residual antimicrobials into the environment. It not only causes ecological harm, but also promotes the occurrence and spread of antimicrobial resistance. The role of environmental factors in antimicrobial contamination and the spread of antimicrobial resistance is often overlooked. There are a large number of antimicrobial-resistant bacteria and antimicrobial resistance genes in human beings, which increases the likelihood that pathogenic bacteria acquire resistance, and also adds opportunities for human contact with antimicrobial-resistant pathogens. In this paper, we review the fate of antimicrobials and antimicrobial resistance in the environment, including the occurrence, spread, and impact on ecological and human health. More importantly, this review emphasizes a number of environmental factors that can exacerbate antimicrobial contamination and the spread of antimicrobial resistance. In the future, the timely removal of antimicrobials and antimicrobial resistance genes in the environment will be more effective in alleviating antimicrobial contamination and antimicrobial resistance.

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“…However, current anaerobic treatment technologies still have limits such as vulnerability to environmental impacts, long conversion time of intermediates fermentation and low organic matter conversion rates ( Meng et al, 2017a ; Zhao et al, 2017 ; Huang et al, 2021 ). In addition, the bactericidal or bacteriostatic properties make it inevitable that antibiotics entering the biological treatment unit will markedly reduce the efficiency of the biological treatment system and even collapse it ( Khurana et al, 2021 ). Therefore, breaking the bottleneck of traditional anaerobic biological treatment technology to further improve the treatment efficiency becomes a challenge.…”

Section: Introductionmentioning

confidence: 99%

Electron shuttles enhanced the removal of antibiotics and antibiotic resistance genes in anaerobic systems: A review

et al. 2022

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The environmental and epidemiological problems caused by antibiotics and antibiotic resistance genes have attracted a lot of attention. The use of electron shuttles based on enhanced extracellular electron transfer for anaerobic biological treatment to remove widespread antibiotics and antibiotic resistance genes efficiently from wastewater or organic solid waste is a promising technology. This paper reviewed the development of electron shuttles, described the mechanism of action of different electron shuttles and the application of enhanced anaerobic biotreatment with electron shuttles for the removal of antibiotics and related genes. Finally, we discussed the current issues and possible future directions of electron shuttle technology.

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Antibiotic-metal complexes in wastewaters: fate and treatment trajectory

Cited by 88 publications

References 181 publications

Sorption Behavior, Speciation, and Toxicity of Microplastic-Bound Chromium in Multisolute Systems

Sorption Behavior, Speciation, and Toxicity of Microplastic-Bound Chromium in Multisolute Systems

Antimicrobial and the Resistances in the Environment: Ecological and Health Risks, Influencing Factors, and Mitigation Strategies

Electron shuttles enhanced the removal of antibiotics and antibiotic resistance genes in anaerobic systems: A review

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