Competitive adsorption of tetracycline, oxytetracycline and chlortetracycline on soils with different pH value and organic matter content

Conde-Cid, Manuel; Ferreira-Coelho, Gustavo; Núñez‐Delgado, Avelino; Fernández‐Calviño, David; Arias‐Estévez, Manuel; Álvarez‐Rodríguez, Esperanza; Fernández‐Sanjurjo, María J.

doi:10.1016/j.envres.2019.108669

Cited by 70 publications

(15 citation statements)

References 62 publications

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“…Analyzing desorption data presented in percentage (Table 2), CFX desorption was always below 8% (and below 1% in most cases), evidencing that adsorption has low reversibility in the soils of the current study, as previously observed in other Galician soils for tetracycline antibiotics [40], and contrary to what was found for sulfonamides, in which desorption exceeded 50% in some cases [41]. The marked differences among adsorption and desorption scores indicate the relevance of hysteresis affecting these processes.…”

Section: Desorptionsupporting

confidence: 69%

Retention of the Antibiotic Cefuroxime onto Agricultural and Forest Soils

et al. 2021

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Antibiotics in wastewater, sewage sludge, manures, and slurries constitute a risk for the environment when spread on soils. This work studies the adsorption and desorption of the antibiotic cefuroxime (CFX) in 23 agricultural and forest soils, using batch-type experiments. Our results show that the adsorption values were between 40.75 and 99.57% in the agricultural soils, while the range was lower (from 74.57 to 93.46%) in forest soils. Among the Freundlich, Langmuir, and Linear models, the Freundlich equation shows the best fit for the adsorption results. In addition, agricultural soils with higher pH are the ones that present the highest adsorption. Further confirmation of the influence of pH on adsorption is given by the fact that Freundlich’s KF parameter and the Linear model Kd parameter shows a positive correlation with pH and with the exchangeable Ca and Mg values, which are known to affect the charges of the soil colloids and the formation of cationic bridges between adsorbents and adsorbate. In addition, Freundlich’s n parameter shows a positive and significant correlation with the organic matter content, related to the high adsorption taking place on forest soils despite their pH < 5. Regarding desorption, in most cases, it is lower than 1%, which indicates that CFX is adsorbed in a rather irreversible way onto these soils. Overall, these results can be considered relevant regarding their potential impact on environmental quality and public health.

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Section: Desorptionsupporting

confidence: 69%

Retention of the Antibiotic Cefuroxime onto Agricultural and Forest Soils

et al. 2021

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“…It is well known that the pH of soils and sediments influences the rate and mechanisms of adsorption for veterinary medicines, for example publications have detailed an increase in the adsorption coefficients at lower pHs for tetracycline, spectinomycin and florfenicol (Hu et al, 2008;Conde-Cid et al, 2019;Wang et al, 2014). Whilst an adsorption study alone was not conducted, the differences between the abioticbiotic degradation assessments (non-sterile, sterile and hydrolysis) indicate that adsorption processes could have contributed to the differing rates of degradation that was observed between the pH treatments.…”

Section: Adsorption and Hydrolysismentioning

confidence: 99%

Assessing the influence of pig slurry pH on the degradation of selected antibiotic compounds

et al. 2022

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“…A comparison study, performed by Wu et al, of the n values in single solute system with that in binary solute system, showed that a more significant competitive effect results in a higher n value but a lower K value (Wu, Kuo et al 2002). In addition, the same results were observed in the case of competitive adsorption with a Freundlich isotherm or in the case of heavy metals (Park, Ok et al 2016, Zhang, Wei et al 2016, Wang, Liu et al 2018, or organic matter on solid supports (Yu, Wang et al 2016, Conde-Cid, Ferreira-Coelho et al 2019, Conde-Cid, Fernández-Sanjurjo et al 2020 Treated Orange Peel (Senthil Kumar, Fernando et al 2014). However, according to Mohan et al, 1/n above one indicates a cooperative adsorption process (Mohan andKarthikeyan 1997, Dada, Olalekan et al 2012), and is an adsorption validity index if n is between one and ten (Goldberg 2005).…”

Section: Adsorption Isothermsmentioning

confidence: 76%

New Cellulose based pH-Sensitive Hydrogel for Highly Efficient Dyes Removal in Water Treatment: Kinetic, Thermodynamic, Theoretical and Computational Studies

Jabir

El-Hammi

Nor

et al. 2021

Preprint

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In this paper, a new green pH-sensitive cellulose based hydrogel (swelling rate ~ 1005 %) was successfully elaborated. However, the new EDTA crosslinked HEC was investigated as adsorbent materiel, which it showed high removal efficiency (~2000 mg.g-1) to aquatic micropollutants, especially methylene blue as cationic dyes model. The synthesis of HEC-EDTA at high advanced crosslinking degree (up to 92 %) that confirmed using structural analyzes (FTIR and 13C CP/MAS-NMR), was cried out using DAEDT and DMAP as acyl transfer agent, where the lamellar morphology (2D- microstructure) was highly suggested basing on the average functionality of the reaction system. The kinetic study showed that the adsorption process was better described by pseudo-second-order kinetic, where the thermodynamic parameters exhibited a negative effect of temperature indicating a physical adsorption process. In addition, the adsorption capacity was studied according to the experimental conditions (pH, contact time, concentration, etc.), and the Freundlich model revealed a strong correlation to the experimental results indicating an energetic heterogeneity of the surface active sites. In the other hand, molecular dynamics (MD) simulations were conducted and optimized using COMPASS II, where the results showed a good agreement with the experiment, and that basing on the intermolecular Non-covalent interaction, molecular structure and cluster configurations.

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Competitive adsorption of tetracycline, oxytetracycline and chlortetracycline on soils with different pH value and organic matter content

Cited by 70 publications

References 62 publications

Retention of the Antibiotic Cefuroxime onto Agricultural and Forest Soils

Retention of the Antibiotic Cefuroxime onto Agricultural and Forest Soils

Assessing the influence of pig slurry pH on the degradation of selected antibiotic compounds

New Cellulose based pH-Sensitive Hydrogel for Highly Efficient Dyes Removal in Water Treatment: Kinetic, Thermodynamic, Theoretical and Computational Studies

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