Removing antibiotic resistance genes under heavy metal stress with carbon-based materials and clay minerals: By sorption alone?

Huang, Hai; Huang, Danlian; Chen, Sha; Wang, Guangfu; Chen, Yashi; Tao, Junli; Chen, Haojie; Gao, Lan

doi:10.1016/j.cej.2022.137121

Cited by 39 publications

(5 citation statements)

References 128 publications

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“…The removal rates at 5 °C and 35 °C were 83% and 89%, respectively, representing an increase of approximately 6% (figure 4). The results of this experiment showed that the increased temperature was conducive to the adsorption of TC by Fe 3 O 4 /BC, and the high temperature was conducive to the diffusion of organic pollutant molecules in the pores of biochar and the contact of surface sites, which ultimately leaded to an increasing in adsorption capacity [52,53]. However, considering energy saving, an ambient temperature of 25 °C was selected instead of maintaining the high temperature used in this experiment, which required heating the wastewater.…”

Section: Effect Of Temperature On Adsorption Performance Of Tetracycl...mentioning

confidence: 93%

Effect on the adsorption performance and mechanism of antibiotics tetracyclines by the magnetic biochar used peanut shells as raw materials

Zhang,

Hua

et al. 2024

Mater. Res. Express

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Widespread environmental pollution caused by the misuse of tetracyclines (TCs) has become a global issue, necessitating the development of water treatment materials for antibiotic removal. Magnetic biochar (MBC) possesses several advantages, including a wide range of raw material sources and low cost, making it a potential adsorbent that overcomes the limitations of biochar (BC) regarding solid-liquid separation. In this study, peanut shell-derived magnetic biochar loaded with Fe3O4 (Fe3O4/BC) was prepared to study its adsorption performance and environmental factors for TCs. The adsorption mechanism was revealed using adsorption isotherms, adsorption kinetics and thermodynamics. The results showed that the total pore volume was increased, and surface oxygen-containing functional groups were formed of that before BC modification. In a wide pH range, Fe3O4/BC showed high adsorption performance for TCs, with an adsorption rate of over 85%. Chemical adsorption was the main adsorption mechanism, including hydrogen bonding, as well as π-π interactions, electrostatic interactions, intrapore diffusion and hydrophobic interactions. Moreover, reusability and obtaining cost of the material were analyzed, demonstrating its promising application prospects. This study will promote the application of Fe3O4/BC in the removal of antibiotics pollutants from water.

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Section: Effect Of Temperature On Adsorption Performance Of Tetracycl...mentioning

confidence: 93%

Effect on the adsorption performance and mechanism of antibiotics tetracyclines by the magnetic biochar used peanut shells as raw materials

Zhang,

Hua

et al. 2024

Mater. Res. Express

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“…Another notable advantage of carbon-based nanomaterials is their excellent antimicrobial properties, which have been attributed to their ability to generate reactive oxygen species upon exposure to light. These properties has been leveraged to develop photocatalytic materials that can effectively disinfect water, thereby mitigating the risk of waterborne diseases [ 37 , 38 ].…”

Section: Nanostructured Materials For Membrane Developmentmentioning

confidence: 99%

Recent advances and applications of nanostructured membranes in water purification

AYDIN,

GÜBBÜK,

Ersöz

2024

Turkish Journal of Chemistry

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In recent years, water pollution caused by hazardous materials such as metals, drugs, pesticides, and insecticides has become a very serious environmental and health problem that needs to be addressed urgently. The nutritional needs associated with the increasing population also increase the demand for water use and rapidly increase the rate of freshwater consumption. Since most of the water in the universe is in the form of sea water, which cannot be directly used, freshwater resources are limited, compared to the existing available water. When addressing the purification of all kinds of pollution in environmental research, nanostructured membranes attract attention as alternative solutions for water treatment. Nanostructured membranes, which can be used for filtration and water treatment process, are summarized in recent research. Various types of nanostructured membranes are presented and used to remove salts and metallic ions in water treatment processes. The representations and application areas of these membrane systems are explained. Consequently, new water treatment nanostructured membranes that can be developed and their effective separation performances are described. The benefits of nanostructured membranes for water treatment and their progress in purification are discussed.

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“…Microbial resistance to heavy metals can also be influenced by the physicochemical aspects of the environment, such as pH, temperature, and redox potential (Huang et al, 2022). Heavy metal speciation, microbiological activity, and growth can all be impacted by the pH of the environment (Li and Song, 2020).…”

Section: Physicochemical Parameters Of the Environmentmentioning

confidence: 99%

Mechanisms of Bacterial Resistance to Heavy Metals: A Mini Review

Yusuf Fardami,

Balarabe Ibrahim,

Sabitu

et al. 2023

USci

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Because of rising levels of heavy metal pollution in the environment, microbial resistance to heavy metals has become an increasing concern. Heavy metal resistance in bacteria is typically achieved through a combination of passive and active mechanisms, including heavy metal sequestration, efflux, or transformation within the microbial cell. During the efflux mechanism, a membrane protein's energy-dependent ion efflux from the cell is necessary for heavy metal removal. Understanding the physicochemical parameters of the environment, structure and diversity of microbial communities, nature and concentration of heavy metals is critical for developing effective strategies for the remediation of heavy metal-contaminated sites. Many microbes play a significant part on functioning ecosystem more especially in the biogeochemical cycling of heavy metals by removing the metals from the environment. As, Pb, Cd, and Hg are among heavy metals that are associated with the most common ecologically hazardous metals that can be toxic to microbes and still nature has evolved few groups of microbes that were found to resist the effect of heavy metals while thriving within their ecosystem such as Pseudomonas sp., Escherichia coli and Serratia marcescens that can resist Hg. Pseudomonas putida, Cupriavidus necator, Exiguobacterium sp., Bacillus aquimaris, Bacillus cereus and Alcaligenes sp. can also resist Cu, Cd, Pb, Cr and Ni. The exposure of local and regional soil with heavy metal pollution due to smelting causes which poses major environmental issues that is currently on rise in human ecosystem. Therefore, studying the mechanisms of bacterial resistance to heavy metal is critical for developing strategies to reduce the environmental impact of heavy metal pollution.

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Removing antibiotic resistance genes under heavy metal stress with carbon-based materials and clay minerals: By sorption alone?

Cited by 39 publications

References 128 publications

Effect on the adsorption performance and mechanism of antibiotics tetracyclines by the magnetic biochar used peanut shells as raw materials

Effect on the adsorption performance and mechanism of antibiotics tetracyclines by the magnetic biochar used peanut shells as raw materials

Recent advances and applications of nanostructured membranes in water purification

Mechanisms of Bacterial Resistance to Heavy Metals: A Mini Review

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