Pretreatment of swine manure containing β-lactam antibiotics with whole-cell biocatalyst to improve biogas production

Liu, Minrui; Ni, Hongyuhang; Yang, Ling; Chen, Gang; Yan, Xiaojun; Leng, Xiaojing; Liu, Pu; Li, Xiangkai

doi:10.1016/j.jclepro.2019.118070

Cited by 29 publications

(11 citation statements)

References 44 publications

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“…The combined pasteurization and AD of swine manure reduced sole archaeal communities, whereas simple AD affected bacteria and archea ( Fubin et al, 2020 ). Manure pretreatment with bacterial strains is effective in degrading antibiotics ( Liu et al, 2019 ) and enhancing biogas production, but the overall effect on ARB and ARGs was not addressed.…”

Section: Manure Treatmentsmentioning

confidence: 99%

Exploring the Animal Waste Resistome: The Spread of Antimicrobial Resistance Genes Through the Use of Livestock Manure

et al. 2020

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Antibiotic resistance is a public health problem of growing concern. Animal manure application to soil is considered to be a main cause of the propagation and dissemination of antibiotic residues, antibiotic-resistant bacteria (ARB), and antibiotic resistance genes (ARGs) in the soil-water system. In recent decades, studies on the impact of antibioticcontaminated manure on soil microbiomes have increased exponentially, in particular for taxonomical diversity and ARGs' diffusion. Antibiotic resistance genes are often located on mobile genetic elements (MGEs). Horizontal transfer of MGEs toward a broad range of bacteria (pathogens and human commensals included) has been identified as the main cause for their persistence and dissemination. Chemical and bio-sanitizing treatments reduce the antibiotic load and ARB. Nevertheless, effects of these treatments on the persistence of resistance genes must be carefully considered. This review analyzed the most recent research on antibiotic and ARG environmental dissemination conveyed by livestock waste. Strategies to control ARG dissemination and antibiotic persistence were reviewed with the aim to identify methods for monitoring DNA transferability and environmental conditions promoting such diffusion.

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Section: Manure Treatmentsmentioning

confidence: 99%

Exploring the Animal Waste Resistome: The Spread of Antimicrobial Resistance Genes Through the Use of Livestock Manure

et al. 2020

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“…ABR is the ability to live and to multiply in the presence of antibiotic concentrations, which have previously been thought to be successful against a given bacterium or another microorganism [5]. New research has found that antibiotic resistance is responsible for 700,000 deaths per year worldwide [6]. They are now generally recognized as a significant threat to public health [7].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of ZnBi2O4 Nanoparticles: Photocatalytic Performance for Antibiotic Removal under Different Light Sources

et al. 2021

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This work aims to synthesize a photocatalyst with high photocatalytic performances and explore the possibility of using it for antibiotic removal from wastewater. For that, the spinel ZnBi2O4 (ZBO) was produced with the co-precipitation method and its optical, dielectric, and electrochemical characteristics were studied. The phase has been determined and characterized by X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FT-IR). For the ZBO morphology, a Scanning Electron Microscopy (SEM) has been used. Then, the optical and dielectric properties of ZBO have been evaluated by calculating refractive index n (λ), extinction coefficient (k), dissipation factor (tan δ), relaxation time (τ), and optical conductivity (σopt) using the spectral distribution of T(λ) and R(λ). An optical gap band of 2.8 eV was determined and confirmed. The electrochemical performance of ZBO was investigated and an n-type semiconductor with a flat band potential of 0.54 V_SCE was found. The photocatalytic efficiency of ZBO was investigated in order to degrade the antibiotic Cefixime (CFX) under different light source irradiations to exploit the optical properties. A high CFX degradation of approximately 89% was obtained under solar light (98 mW cm−2) only after 30 min, while 88% of CFX degradation efficiency has been reached after 2 h under UV irradiation (20 mW cm−2); this is in line with the finding of the optical characterizations. According to the obtained data, solar light assisted nanoparticle ZBO can be used successfully in wastewater to remove pharmaceutical products.

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“…ABR is the ability to survive and multiply in the presence of antibiotic doses that are eventually deemed effective against a bacterial population or other microorganisms (Elder et al 2020). A statistics study indicates that antibiotic resistance causes 700,000 deaths globally each year (Liu et al 2019). ABR is now, in the 21st century, widely recognized as a grave threat to global health in the 21st century (Littmann et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Artificial neural network modeling of cefixime photodegradation by synthesized CoBi2O4 nanoparticles

Baaloudj

Nasrallah

Kebir

et al. 2020

Environ Sci Pollut Res

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CoBi2O4 (CBO) nanoparticles were synthesized by sol-gel method using Polyvinylpyrrolidone (PVP) as a complexing reagent. For a single-phase with the spinel structure, the formed gel was dried and calcined at four temperatures stages. Various methods were used to identified and characterized the obtained spinel, such as X-ray diffraction (XRD), Scanning Electron Micrograph (SEM-EDX), Transmission electron microscope (TEM), Fourier transform infrared (FT-IR), X-ray fluorescence (XRF), Raman and UV-Vis spectroscopies. The photocatalytic activity of CBO was examined for the degradation of a pharmaceutical product Cefixime (CFX). Furthermore, for the prediction of the CFX degradation rate an artificial neural network model was used.The network was trained using the experimental data obtained at different pH with different CBO doses and initial CFX concentrations. To optimize the network, various algorithms and transfer functions for the hidden layer were tested. By calculating the REVISED MANUSCRIPT mean square error (MSE), 13 neurons were found to be the optimal number of neurons and produced the highest coefficient of correlation R 2 of 99.6 %. The relative significance of the input variables was calculated and the most impacting input was proved to be the initial CFX concentration. The effects of some scavenging agents were also studied. The results confirmed the dominant role of hydroxyl radical OH • in the degradation process. With the novel CoBi2O4/ZnO hetero-system, the photocatalytic performance has been enhanced, giving an 80% degradation yield of CFX (10 mg/L) at neutral pH in only 3 hours.

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Pretreatment of swine manure containing β-lactam antibiotics with whole-cell biocatalyst to improve biogas production

Cited by 29 publications

References 44 publications

Exploring the Animal Waste Resistome: The Spread of Antimicrobial Resistance Genes Through the Use of Livestock Manure

Exploring the Animal Waste Resistome: The Spread of Antimicrobial Resistance Genes Through the Use of Livestock Manure

Synthesis and Characterization of ZnBi2O4 Nanoparticles: Photocatalytic Performance for Antibiotic Removal under Different Light Sources

Artificial neural network modeling of cefixime photodegradation by synthesized CoBi2O4 nanoparticles

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