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Prof. Dr. Avelino Núñez-Delgado
Dept. Soil Sci. and Agric. Chem., Eng. Polytech. School, Univ. Santiago de Compostela

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0 Wastewater Treatment
0 soil remediation
0 waste recycling
0 Soil Degradation

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Editorial
Published: 12 August 2021 in Processes
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The increasing trends in gas pollution, water pollution, and solid waste pollution have an adverse impact on human health and ecological habitats

ACS Style

Wenxiang Zhang; Zhien Zhang; Avelino Núñez-Delgado. Gas, Water and Solid Waste Treatment Technology. Processes 2021, 9, 1397 .

AMA Style

Wenxiang Zhang, Zhien Zhang, Avelino Núñez-Delgado. Gas, Water and Solid Waste Treatment Technology. Processes. 2021; 9 (8):1397.

Chicago/Turabian Style

Wenxiang Zhang; Zhien Zhang; Avelino Núñez-Delgado. 2021. "Gas, Water and Solid Waste Treatment Technology." Processes 9, no. 8: 1397.

Journal article
Published: 11 August 2021 in Environmental Research
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To mitigate greenhouse gas (GHG) emissions, different strategies have been proposed, including application of dolomite, crop straw and biochar, thus contributing to cope with the increasing global warming affecting the planet. In the current study, pristine wheat straw biochar (WBC) and magnesium (MgCl2.6H2O) modified wheat straw biochar (MWBC) were used. Treatments included control (CK), two WBC dosages (1% and 2.5%), and two MWBC doses (1% and 2.5%). After 90 days of incubation, WBC and MWBC improved the soil physiochemical properties, being more pronounced with increasing rates of biochar. MWBC2.5 significantly decreased microbial biomass carbon (MBC), while microbial biomass nitrogen (MBN) increased when both biochar materials (WBC1 and MWBC1) were applied at low rate. Compared to control soil, Urease and Alkaline phosphatase activities increased with the increasing rate of WBC and MWBC. The activities of dehydrogenase and β-glucosidase decreased with the WBC and MWBC application, compared to CK. The fluxes of all the three GHGs evaluated (CO2, CH4 and N2O) decreased with time for both biochar amendments, while cumulative emission of CO2 increased by 58% and 45% for WBC, and by 54% and 41% for MWBC, as compared to CK. The N2O cumulative emissions decreased by 18 and 34% for WBC, and by 25 and 41% for MWBC, compared to CK, whereas cumulative methane emission showed non-significant differences among all treatments. These findings indicate that Mg-modified wheat straw biochar would be an appropriate management strategy aiding to reduce GHG emissions and improving the physiochemical properties of affected soils, and specifically of the red dry land soil investigated in the current work.

ACS Style

Muhammad Numan Khan; Jing Huang; Asad Shah; Dongchu Li; Nano Alemu Daba; Tainfu Han; Jiangxue Du; Muhammad Qaswar; Christian Kofi Anthonio; Tanveer Ali Sial; Abdul Haseeb; Lu Zhang; YongMei Xu; Zhongqun He; Huimin Zhang; Avelino Núñez-Delgado. Mitigation of greenhouse gas emissions from a red acidic soil by using magnesium-modified wheat straw biochar. Environmental Research 2021, 203, 111879 .

AMA Style

Muhammad Numan Khan, Jing Huang, Asad Shah, Dongchu Li, Nano Alemu Daba, Tainfu Han, Jiangxue Du, Muhammad Qaswar, Christian Kofi Anthonio, Tanveer Ali Sial, Abdul Haseeb, Lu Zhang, YongMei Xu, Zhongqun He, Huimin Zhang, Avelino Núñez-Delgado. Mitigation of greenhouse gas emissions from a red acidic soil by using magnesium-modified wheat straw biochar. Environmental Research. 2021; 203 ():111879.

Chicago/Turabian Style

Muhammad Numan Khan; Jing Huang; Asad Shah; Dongchu Li; Nano Alemu Daba; Tainfu Han; Jiangxue Du; Muhammad Qaswar; Christian Kofi Anthonio; Tanveer Ali Sial; Abdul Haseeb; Lu Zhang; YongMei Xu; Zhongqun He; Huimin Zhang; Avelino Núñez-Delgado. 2021. "Mitigation of greenhouse gas emissions from a red acidic soil by using magnesium-modified wheat straw biochar." Environmental Research 203, no. : 111879.

Journal article
Published: 14 July 2021 in Processes
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A novel manganese-rich pokeweed biochar was prepared at different temperatures from manganese-rich pokeweed plants collected at manganese tailings, resulting in materials identified as BC300, BC400, and BC500. The synthetized biochar materials were investigated as regards their potential for removing Cu2+, Pb2+, and Cd2+, specifically in terms of adsorption performances, adsorption kinetics, adsorption isotherms, and potential environmental pollution risk. The results showed that the sorption process fitted well to the pseudo-second-order kinetic and Langmuir models, and the maximum adsorption capacities of BC500 were 246, 326, and 310 mg·g−1 for Cu2+, Pb2+, and Cd2+ respectively. The physicochemical characteristics of the biochars, and the adsorption mechanisms, were revealed by using scanning electron microscopy-energy spectrometer, elemental analysis, Brunauer–Emmett–Teller techniques, X-ray diffraction, X-ray photoelectron spectroscopy, and Fourier transform infrared spectroscopy. The sorption mechanism of these three heavy metal ions onto biochars included ion exchange, electrostatic adsorption, chemical adsorption, and precipitation. Besides, the potential pollution risk of manganese-rich pokeweed biochars was significantly reduced after pyrolysis. Therefore, it is feasible to transform manganese-rich pokeweed biomass into manganese-rich pokeweed biochar with potential for heavy metals removal, showing high adsorption capacity, recyclability, and low environmental pollution.

ACS Style

Zhe Yang; Wenyong Hu; Bin Yao; Liangchen Shen; FeiFeng Jiang; Yaoyu Zhou; Avelino Núñez-Delgado. A Novel Manganese-Rich Pokeweed Biochar for Highly Efficient Adsorption of Heavy Metals from Wastewater: Performance, Mechanisms, and Potential Risk Analysis. Processes 2021, 9, 1209 .

AMA Style

Zhe Yang, Wenyong Hu, Bin Yao, Liangchen Shen, FeiFeng Jiang, Yaoyu Zhou, Avelino Núñez-Delgado. A Novel Manganese-Rich Pokeweed Biochar for Highly Efficient Adsorption of Heavy Metals from Wastewater: Performance, Mechanisms, and Potential Risk Analysis. Processes. 2021; 9 (7):1209.

Chicago/Turabian Style

Zhe Yang; Wenyong Hu; Bin Yao; Liangchen Shen; FeiFeng Jiang; Yaoyu Zhou; Avelino Núñez-Delgado. 2021. "A Novel Manganese-Rich Pokeweed Biochar for Highly Efficient Adsorption of Heavy Metals from Wastewater: Performance, Mechanisms, and Potential Risk Analysis." Processes 9, no. 7: 1209.

Journal article
Published: 01 July 2021 in Processes
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Environmental pollution due to antibiotics is a serious problem. In this work, the adsorption and desorption of the antibiotic cefuroxime (CFX) were studied in four by-products/residues from the forestry and food industries. For this, batch-type experiments were carried out, adding increasing concentrations of CFX (from 0 to 50 µmol L−1) to 0.5 g of adsorbent. The materials with a pH higher than 9 (mussel shell and wood ash) were those that presented the highest adsorption percentages, from 71.2% (23.1 µmol kg−1) to 98.6% (928.0 µmol kg−1). For the rest of the adsorbents, the adsorption was also around 100% when the lowest concentrations of CFX were added, but the percentage dropped sharply when the highest dose of the antibiotic was incorporated. Adsorption data fitted well to the Langmuir and Freundlich models, with R2 greater than 0.9. Regarding desorption, the materials that presented the lowest values when the highest concentration of CFX was added were wood ash (0%) and mussel shell (2.1%), while pine bark and eucalyptus leaves presented the highest desorption (26.6% and 28.6%, respectively). Therefore, wood ash and mussel shell could be considered adsorbents with a high potential to be used in problems of environmental contamination by CFX.

ACS Style

Raquel Cela-Dablanca; Carolina Nebot; Lucia Rodríguez López; David Fernández-Calviño; Manuel Arias-Estévez; Avelino Núñez-Delgado; María Fernández-Sanjurjo; Esperanza Álvarez-Rodríguez. Efficacy of Different Waste and By-Products from Forest and Food Industries in the Removal/Retention of the Antibiotic Cefuroxime. Processes 2021, 9, 1151 .

AMA Style

Raquel Cela-Dablanca, Carolina Nebot, Lucia Rodríguez López, David Fernández-Calviño, Manuel Arias-Estévez, Avelino Núñez-Delgado, María Fernández-Sanjurjo, Esperanza Álvarez-Rodríguez. Efficacy of Different Waste and By-Products from Forest and Food Industries in the Removal/Retention of the Antibiotic Cefuroxime. Processes. 2021; 9 (7):1151.

Chicago/Turabian Style

Raquel Cela-Dablanca; Carolina Nebot; Lucia Rodríguez López; David Fernández-Calviño; Manuel Arias-Estévez; Avelino Núñez-Delgado; María Fernández-Sanjurjo; Esperanza Álvarez-Rodríguez. 2021. "Efficacy of Different Waste and By-Products from Forest and Food Industries in the Removal/Retention of the Antibiotic Cefuroxime." Processes 9, no. 7: 1151.

Editorial
Published: 25 June 2021 in Environmental Research
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The title of the Virtual Special Issue (VSI) “SARS-CoV-2 and other pathogenic microorganisms in the environment”, clearly indicates a main focus not only on the virus causing the current pandemic, but also on other pathogenic microorganisms and their spatial and temporal dynamics in environmental compartments. Overall, the VSI has received more than 100 submissions relating to most of the possible fields connected to the pandemic, many of them of high scientific value. A rigorous peer-reviewing process has been carried out, with a panel of experts making a great work to evaluate that important number of submissions. As a result, those manuscripts reaching the highest scientific standards were selected for publication. We think that the papers included constitute a set of high-quality contributions, which should help to improve the overall scientific perspective regarding this crucial issue. In this piece, the Editors comment some issues on the papers accepted for publication, and include additional reflections.

ACS Style

Avelino Núñez-Delgado; Elza Bontempi; Mario Coccia; Manish Kumar; Kata Farkas; José L. Domingo. EDITORIAL (VSI) SARS-CoV-2 and other pathogenic microorganisms in the environment. Environmental Research 2021, 201, 111606 .

AMA Style

Avelino Núñez-Delgado, Elza Bontempi, Mario Coccia, Manish Kumar, Kata Farkas, José L. Domingo. EDITORIAL (VSI) SARS-CoV-2 and other pathogenic microorganisms in the environment. Environmental Research. 2021; 201 ():111606.

Chicago/Turabian Style

Avelino Núñez-Delgado; Elza Bontempi; Mario Coccia; Manish Kumar; Kata Farkas; José L. Domingo. 2021. "EDITORIAL (VSI) SARS-CoV-2 and other pathogenic microorganisms in the environment." Environmental Research 201, no. : 111606.

Editorial
Published: 25 June 2021 in Environmental Research
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The Virtual Special Issue (VSI) “New research on reduction and/or elimination of hazardous substances in the design, manufacture and application of chemical products” was initially associated to the “International Conference on Green Chemistry and Sustainable Engineering, GreenChem-20” that was postponed due to the COVID-19 pandemic. Anyway, the international conference will take place in the near future. However, the VSI was maintained in this journal, received a high number of submissions, and selected manuscripts have been accepted after peer-reviewing. The published papers constitute a set of high-quality contributions, which, in the future, could be complemented with others related to additional conferences about similar topics. In this editorial piece, the Editors include brief comments on papers accepted for publication in the Special Issue, as well as additional aspects of interest related to the subject.

ACS Style

Avelino Núñez-Delgado; Joaquín R. Dominguez; Yaoyu Zhou; Marco Race; José L. Domingo. New research on reduction and/or elimination of hazardous substances in the design, manufacture and application of chemical products. Environmental Research 2021, 201, 111601 .

AMA Style

Avelino Núñez-Delgado, Joaquín R. Dominguez, Yaoyu Zhou, Marco Race, José L. Domingo. New research on reduction and/or elimination of hazardous substances in the design, manufacture and application of chemical products. Environmental Research. 2021; 201 ():111601.

Chicago/Turabian Style

Avelino Núñez-Delgado; Joaquín R. Dominguez; Yaoyu Zhou; Marco Race; José L. Domingo. 2021. "New research on reduction and/or elimination of hazardous substances in the design, manufacture and application of chemical products." Environmental Research 201, no. : 111601.

Editorial
Published: 24 June 2021 in Environmental Research
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The Editors of the Virtual Special Issue (VSI) “New Research on Water, Waste and Energy Management, with Special Focus on Antibiotics and Priority Pollutants” (VSI WWEM-20) here present details corresponding to papers that have been accepted, as well as further comments on the matter. It should be noted that the VSI should be associated to a Conference that had been initially programmed to be held in Rome during the summer of 2020, Unfortunately, it was postponed due to the COVID-19 pandemic. That conference was one of those within the series called “International Congress on Water, Waste and Energy Management”. Although the Conference was postponed, the Call for Papers for the VSI was maintained by this journal. As a result, a set of very interesting papers were accepted after a careful peer-review process. We hope that it will be complemented with additional VSIs associated to future conferences corresponding to the series, increasing the knowledge on the topic.

ACS Style

Avelino Núñez-Delgado; Joaquín R. Dominguez; Yaoyu Zhou; Marco Race; José L. Domingo. EDITORIAL (VSI) New Research on Water, Waste and Energy Management, with Special Focus on Antibiotics and Priority Pollutants. Environmental Research 2021, 201, 111582 .

AMA Style

Avelino Núñez-Delgado, Joaquín R. Dominguez, Yaoyu Zhou, Marco Race, José L. Domingo. EDITORIAL (VSI) New Research on Water, Waste and Energy Management, with Special Focus on Antibiotics and Priority Pollutants. Environmental Research. 2021; 201 ():111582.

Chicago/Turabian Style

Avelino Núñez-Delgado; Joaquín R. Dominguez; Yaoyu Zhou; Marco Race; José L. Domingo. 2021. "EDITORIAL (VSI) New Research on Water, Waste and Energy Management, with Special Focus on Antibiotics and Priority Pollutants." Environmental Research 201, no. : 111582.

Journal article
Published: 19 June 2021 in Journal of Environmental Management
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Ecosystem degradation as a result of coal mining is a common phenomenon in various regions of the world, especially in arid and semi-arid zones. The implementation of appropriate revegetation techniques can be considered crucial to restore these degraded areas. In this regard, the additions of spent mushroom compost (SMC) and wood biochar (WB) to infertile and degraded soils have been reported to enhance soil fertility and plant growth under water (W) deficit conditions. However, the combined application of W, SMC and WB to coal mine degraded soils, to promote Althaea rosea growth and facilitate subsequent restoration, has not been explored yet. Hence, in the current study a pot experiment was carried out by growing A. rosea on coal mine spoils to assess the influence of different doses of W, SMC and WB on its morpho-physiological and biochemical growth responses. The results indicated that several plant growth traits like plant height, root length and dry biomass significantly improved with moderate W-SMC-WB doses. In addition, the simultaneous application of W-SMC-WB caused a significant decrease in hydrogen peroxide (H2O2) (by 7–56%), superoxide anion (O2●‒) (by 14–51%), malondialdehyde (MDA) (by 23–46%) and proline (Pro) contents (by 23–66%), as well as an increase in relative water content (by 10–27%), membrane stability index (by 2–24%), net photosynthesis rate (by 40–99%), total chlorophylls (by 43–113%) and carotenoids (by 31–115%), as compared to the control treatment. The addition of SMC and WB under low-W regime enhanced leaf water use efficiency, and soluble sugar content, also boosting the activity of superoxide dismutase, catalase, peroxidase and ascorbate peroxidase in leaf tissues, thus reducing the oxidative stress, as proved by low levels of H2O2, O2●‒, MDA and Pro contents. Finest growth performance under optimum doses of W (60% field capacity), SMC (1.4%) and WB (0.8%) suggest that revegetation of A. rosea with the recommended W-SMC-WB doses would be a suitable and eco-friendly approach for ecological restoration in arid degraded areas.

ACS Style

Rana Roy; Avelino Núñez-Delgado; Shirin Sultana; Jinxin Wang; Ammara Munir; Martin L. Battaglia; Tanwne Sarker; Mahmoud F. Seleiman; Milon Barmon; Ruiqi Zhang. Additions of optimum water, spent mushroom compost and wood biochar to improve the growth performance of Althaea rosea in drought-prone coal-mined spoils. Journal of Environmental Management 2021, 295, 113076 .

AMA Style

Rana Roy, Avelino Núñez-Delgado, Shirin Sultana, Jinxin Wang, Ammara Munir, Martin L. Battaglia, Tanwne Sarker, Mahmoud F. Seleiman, Milon Barmon, Ruiqi Zhang. Additions of optimum water, spent mushroom compost and wood biochar to improve the growth performance of Althaea rosea in drought-prone coal-mined spoils. Journal of Environmental Management. 2021; 295 ():113076.

Chicago/Turabian Style

Rana Roy; Avelino Núñez-Delgado; Shirin Sultana; Jinxin Wang; Ammara Munir; Martin L. Battaglia; Tanwne Sarker; Mahmoud F. Seleiman; Milon Barmon; Ruiqi Zhang. 2021. "Additions of optimum water, spent mushroom compost and wood biochar to improve the growth performance of Althaea rosea in drought-prone coal-mined spoils." Journal of Environmental Management 295, no. : 113076.

Journal article
Published: 16 June 2021 in Processes
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When a commercial vehicle is driving with the sunroof open, it is easy for the problem of sunroof buffeting noise to occur. This paper establishes the basis for the design of a commercial vehicle model that solves the problem of sunroof buffeting noise, which is based on computational fluid dynamics (CFD) numerical simulation technology. The large eddy simulation (LES) method was used to analyze the characteristics of the buffeting noise with different speed conditions while the sunroof was open. The simulation results showed that the small vortex generated in the cab forehead merges into a large vortex during the backward movement, and the turbulent vortex causes a resonance response in the cab cavity as the turbulent vortex moves above the sunroof and falls into the cab. Improving the flow field characteristics above the cab can reduce the sunroof buffeting noise. Focusing on the buffeting noise of commercial vehicles, it is proposed that the existing accessories, including sun visors and roof domes, are optimized to deal with the problem of sunroof buffeting noise. The sound pressure level of the sunroof buffeting noise was reduced by 6.7 dB after optimization. At the same time, the local pressure drag of the commercial vehicle was reduced, and the wind resistance coefficient was reduced by 1.55% compared to the original commercial vehicle. These results can be considered as relevant, with high potential applicability, within this field of research.

ACS Style

RongJiang Tang; HongBin He; Zengjun Lu; Shenfang Li; Enyong Xu; Fei Xiao; Avelino Núñez-Delgado. Control of Sunroof Buffeting Noise by Optimizing the Flow Field Characteristics of a Commercial Vehicle. Processes 2021, 9, 1052 .

AMA Style

RongJiang Tang, HongBin He, Zengjun Lu, Shenfang Li, Enyong Xu, Fei Xiao, Avelino Núñez-Delgado. Control of Sunroof Buffeting Noise by Optimizing the Flow Field Characteristics of a Commercial Vehicle. Processes. 2021; 9 (6):1052.

Chicago/Turabian Style

RongJiang Tang; HongBin He; Zengjun Lu; Shenfang Li; Enyong Xu; Fei Xiao; Avelino Núñez-Delgado. 2021. "Control of Sunroof Buffeting Noise by Optimizing the Flow Field Characteristics of a Commercial Vehicle." Processes 9, no. 6: 1052.

Journal article
Published: 21 May 2021 in Molecules
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In view of the rising relevance of emerging pollutants in the environment, this work studies the photodegradation of three antibiotics, evaluating the effects of the pH of the medium and the concentration of dissolved organic matter. Simulated light (with a spectrum similar to that of natural sunlight) was applied to the antibiotics Ciprofloxacin (Cip), Clarithromycin (Cla) and Trimethoprim (Tri), at three different pH, and in the presence of different concentrations of humic acids. The sensitivity to light followed the sequence: Cip > Cla > Tri, which was inverse for the half-life (Tri > Cla > Cip). As the pH increased, the half-life generally decreased, except for Cla. Regarding the kinetic constant k, in the case of Cip and Tri it increased with the rise of pH, while decreased for Cla. The results corresponding to total organic carbon (TOC) indicate that the complete mineralization of the antibiotics was not achieved. The effect of humic acids was not marked, slightly increasing the degradation of Cip, and slightly decreasing it for Tri, while no effect was detected for Cla. These results may be relevant in terms of understanding the evolution of these antibiotics, especially when they reach different environmental compartments and receive sunlight radiation.

ACS Style

Lucía Rodríguez-López; Raquel Cela-Dablanca; Avelino Núñez-Delgado; Esperanza Álvarez-Rodríguez; David Fernández-Calviño; Manuel Arias-Estévez. Photodegradation of Ciprofloxacin, Clarithromycin and Trimethoprim: Influence of pH and Humic Acids. Molecules 2021, 26, 3080 .

AMA Style

Lucía Rodríguez-López, Raquel Cela-Dablanca, Avelino Núñez-Delgado, Esperanza Álvarez-Rodríguez, David Fernández-Calviño, Manuel Arias-Estévez. Photodegradation of Ciprofloxacin, Clarithromycin and Trimethoprim: Influence of pH and Humic Acids. Molecules. 2021; 26 (11):3080.

Chicago/Turabian Style

Lucía Rodríguez-López; Raquel Cela-Dablanca; Avelino Núñez-Delgado; Esperanza Álvarez-Rodríguez; David Fernández-Calviño; Manuel Arias-Estévez. 2021. "Photodegradation of Ciprofloxacin, Clarithromycin and Trimethoprim: Influence of pH and Humic Acids." Molecules 26, no. 11: 3080.

Journal article
Published: 19 May 2021 in Applied Sciences
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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.

ACS Style

Raquel Cela-Dablanca; Carolina Nebot; Lucia López; David Ferández-Calviño; Manuel Arias-Estévez; Avelino Núñez-Delgado; Esperanza Álvarez-Rodríguez; María Fernández-Sanjurjo. Retention of the Antibiotic Cefuroxime onto Agricultural and Forest Soils. Applied Sciences 2021, 11, 4663 .

AMA Style

Raquel Cela-Dablanca, Carolina Nebot, Lucia López, David Ferández-Calviño, Manuel Arias-Estévez, Avelino Núñez-Delgado, Esperanza Álvarez-Rodríguez, María Fernández-Sanjurjo. Retention of the Antibiotic Cefuroxime onto Agricultural and Forest Soils. Applied Sciences. 2021; 11 (10):4663.

Chicago/Turabian Style

Raquel Cela-Dablanca; Carolina Nebot; Lucia López; David Ferández-Calviño; Manuel Arias-Estévez; Avelino Núñez-Delgado; Esperanza Álvarez-Rodríguez; María Fernández-Sanjurjo. 2021. "Retention of the Antibiotic Cefuroxime onto Agricultural and Forest Soils." Applied Sciences 11, no. 10: 4663.

Journal article
Published: 05 May 2021 in Agronomy
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A laboratory experiment was performed to examine the medium-term influence of three tetracycline antibiotics (chlortetracycline, CTC; tetracycline, TC and oxytetracycline, OTC) at different concentrations in four agricultural soils with similar pH and different soil organic content. After a 42-days incubation period, three different soil enzymes (β-glucosidase, urease, and phosphomonoesterase) were estimated, as well as the phospholipid fatty acids (PLFAs). A residual effect was observed on all microbial parameters measured in the four soils affecting to the soil enzymes activity and soil microbial communities structure (PLFA pattern). A different microbial sensitivity to antibiotics was detected depending on both, soil type and the microbial property considered. Specifically, in general, no antibiotic effect or even a slight positive effect was observed for phosphomonoesterase and β-glucosidase enzyme activities, respectively, while a negative effect was detected for urease activity values, particularly at higher doses of the antibiotics in a soil with a low organic matter content. The principal component analysis performed with the PLFAs data obtained for all soil samples showed different microbial communities depending mainly on soil type, followed by the antibiotic added to the soil (CTC, TC or OTC) and, in a lesser extent, by its concentration. In general, the PLFA patterns showed similar microbial communities structure due to OTC and TC addition in comparison to the microbial communities structure of soil treated with CTC. These results could be environmentally relevant, especially as regards potential effects of antibiotics on the soil microbiome and hence on health risk assessment of these antibiotics in soils.

ACS Style

Vanesa Santás-Miguel; Montserrat Díaz-Raviña; Angela Martín; Elena García-Campos; Ana Barreiro; Avelino Núñez-Delgado; Esperanza Álvarez-Rodríguez; Manuel Arias-Estévez; David Fernández-Calviño. Soil Enzymatic Activities and Microbial Community Structure in Soils Polluted with Tetracycline Antibiotics. Agronomy 2021, 11, 906 .

AMA Style

Vanesa Santás-Miguel, Montserrat Díaz-Raviña, Angela Martín, Elena García-Campos, Ana Barreiro, Avelino Núñez-Delgado, Esperanza Álvarez-Rodríguez, Manuel Arias-Estévez, David Fernández-Calviño. Soil Enzymatic Activities and Microbial Community Structure in Soils Polluted with Tetracycline Antibiotics. Agronomy. 2021; 11 (5):906.

Chicago/Turabian Style

Vanesa Santás-Miguel; Montserrat Díaz-Raviña; Angela Martín; Elena García-Campos; Ana Barreiro; Avelino Núñez-Delgado; Esperanza Álvarez-Rodríguez; Manuel Arias-Estévez; David Fernández-Calviño. 2021. "Soil Enzymatic Activities and Microbial Community Structure in Soils Polluted with Tetracycline Antibiotics." Agronomy 11, no. 5: 906.

Journal article
Published: 20 March 2021 in Environmental Research
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In the context of the current COVID-19 pandemic, and mostly taking a broad perspective, it is clearly relevant to study environmental factors that could affect eventual future outbreaks due to coronaviruses and/or other pathogenic microorganisms. In view of that, the authors of this manuscript review the situation of SARS-CoV-2 and other main pathogenic microorganisms in the environment, focusing on Galicia and Spain. Overall, in addition to showing local data, it is put in evidence that, summed to all efforts being carried out to treat/control this and any other eventual future epidemic diseases, both at local and global levels, a deep attention should be paid to ecological/environmental aspects that have effects on the planet, its ecosystems and their relations/associations with the probability of spreading of eventual future pandemics.

ACS Style

Raquel Cela-Dablanca; Vanesa Santás-Miguel; David Fernández-Calviño; Manuel Arias-Estévez; María J. Fernández-Sanjurjo; Esperanza Álvarez-Rodríguez; Avelino Núñez-Delgado. SARS-CoV-2 and other main pathogenic microorganisms in the environment: Situation in Galicia and Spain. Environmental Research 2021, 197, 111049 -111049.

AMA Style

Raquel Cela-Dablanca, Vanesa Santás-Miguel, David Fernández-Calviño, Manuel Arias-Estévez, María J. Fernández-Sanjurjo, Esperanza Álvarez-Rodríguez, Avelino Núñez-Delgado. SARS-CoV-2 and other main pathogenic microorganisms in the environment: Situation in Galicia and Spain. Environmental Research. 2021; 197 ():111049-111049.

Chicago/Turabian Style

Raquel Cela-Dablanca; Vanesa Santás-Miguel; David Fernández-Calviño; Manuel Arias-Estévez; María J. Fernández-Sanjurjo; Esperanza Álvarez-Rodríguez; Avelino Núñez-Delgado. 2021. "SARS-CoV-2 and other main pathogenic microorganisms in the environment: Situation in Galicia and Spain." Environmental Research 197, no. : 111049-111049.

Editorial
Published: 01 March 2021 in Journal of Environmental Management
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ACS Style

Joaquin R. Dominguez; Avelino Núñez-Delgado; Juan García-Rodríguez. Treatment technologies for emerging contaminants in water. Journal of Environmental Management 2021, 286, 112256 .

AMA Style

Joaquin R. Dominguez, Avelino Núñez-Delgado, Juan García-Rodríguez. Treatment technologies for emerging contaminants in water. Journal of Environmental Management. 2021; 286 ():112256.

Chicago/Turabian Style

Joaquin R. Dominguez; Avelino Núñez-Delgado; Juan García-Rodríguez. 2021. "Treatment technologies for emerging contaminants in water." Journal of Environmental Management 286, no. : 112256.

Journal article
Published: 30 January 2021 in Environmental Research
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This work focuses on studying the efficacy of three different by-products to adsorb three antibiotics (sulfadiazine, SDZ; sulfamethazine, SMT; sulfachloropyridazine, SCP). These antibiotics can be considered pollutants of the environment when they reach water, as well as in cases where they are spread on soils through irrigation or contained in sewage sludge or livestock manure. In this study, batch-type adsorption/desorption experiments were performed for each of the three sulfonamides, adding 7 different concentrations of the antibiotics, going from 1 to 50 μmol L−1, and with contact time of 24 h. The results indicate that pine bark is the most efficient bioadsorbent among those studied, as it adsorbs up to 95% of the antibiotics added, while desorption is always less than 11%. However, for “oak ash” and mussel shell the adsorption is always lower than 45 and 15%, respectively, and desorption is high, reaching up to 49% from “oak ash” and up to 81% from mussel shell. Adsorption data showed good fitting to the Linear and Freundlich models, with R2 values between 0.98 and 1.00 in both cases. Kd and KF adsorption parameters showed similar values for the same sorbent materials but were much higher for pine bark than for the other two bioadsorbents. The Freundlich's n parameter showed values in the range 0.81–1.28. The highest KF values (and therefore the highest adsorption capacities) were obtained for the antibiotic SCP in pine bark. Pine bark showed the highest capacity to adsorb each of the antibiotics, increasing as a function of the concentration added. When the concentration of sulfonamide added was 50 μM, the amounts adsorbed were 780 μmol kg−1 for SDZ, 890 μmol kg−1 for SMT, and 870 μmol kg−1 for SCP. “Oak ash” and mussel shell have low adsorption capacity for all three sulfonamides, showing values always lower than 150 μmol kg−1 (oak ash) and 20 μmol kg−1 (mussel shell) when a concentration of 50 μmol L−1 of antibiotic is added. The results of this study could aid to make an appropriate management of the by-products studied, in order to facilitate their valorization and recycling in the treatment of environmental compartments polluted with sulfonamide antibiotics.

ACS Style

M. Conde-Cid; R. Cela-Dablanca; G. Ferreira-Coelho; D. Fernández-Calviño; A. Núñez-Delgado; M.J. Fernández-Sanjurjo; M. Arias-Estévez; E. Álvarez-Rodríguez. Sulfadiazine, sulfamethazine and sulfachloropyridazine removal using three different porous materials: Pine bark, “oak ash” and mussel shell. Environmental Research 2021, 195, 110814 .

AMA Style

M. Conde-Cid, R. Cela-Dablanca, G. Ferreira-Coelho, D. Fernández-Calviño, A. Núñez-Delgado, M.J. Fernández-Sanjurjo, M. Arias-Estévez, E. Álvarez-Rodríguez. Sulfadiazine, sulfamethazine and sulfachloropyridazine removal using three different porous materials: Pine bark, “oak ash” and mussel shell. Environmental Research. 2021; 195 ():110814.

Chicago/Turabian Style

M. Conde-Cid; R. Cela-Dablanca; G. Ferreira-Coelho; D. Fernández-Calviño; A. Núñez-Delgado; M.J. Fernández-Sanjurjo; M. Arias-Estévez; E. Álvarez-Rodríguez. 2021. "Sulfadiazine, sulfamethazine and sulfachloropyridazine removal using three different porous materials: Pine bark, “oak ash” and mussel shell." Environmental Research 195, no. : 110814.

Correspondence
Published: 07 January 2021 in Environmental Pollution
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In the current COVID-19 pandemic, SARS-CoV-2 has been quantified in wastewater in various countries, and wastewater based epidemiology has been proposed as a potential early warning tool for new outbreaks. However, even taking into account that poorly treated wastewater and sewage sludge may be spread on soils, there is no published paper dealing with the quantification of the virus in soil-related liquid samples, as could be runoff, leachates, or soil solution. To fill this gap, the authors of this piece propose reflections on the development of a methodological approach for the quantification of SARS-CoV-2 (and eventually other pathogens) in soil-related liquid samples.

ACS Style

Manuel Conde-Cid; Manuel Arias-Estévez; Avelino Núñez-Delgado. SARS-CoV-2 and other pathogens could be determined in liquid samples from soils. Environmental Pollution 2021, 273, 116445 -116445.

AMA Style

Manuel Conde-Cid, Manuel Arias-Estévez, Avelino Núñez-Delgado. SARS-CoV-2 and other pathogens could be determined in liquid samples from soils. Environmental Pollution. 2021; 273 ():116445-116445.

Chicago/Turabian Style

Manuel Conde-Cid; Manuel Arias-Estévez; Avelino Núñez-Delgado. 2021. "SARS-CoV-2 and other pathogens could be determined in liquid samples from soils." Environmental Pollution 273, no. : 116445-116445.

Journal article
Published: 24 December 2020 in Processes
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Different antibiotics contained in manure, slurry, wastewater or sewage sludge are spread into the environment. The harmful effects of these antibiotics could be minimized by means of immobilization onto bioadsorbent materials. This work investigates the competitive adsorption/desorption of tetracycline (TC) and sulfadiazine (SDZ) onto pine bark, oak ash and mussel shell. The study was carried out using batch-type experiments in binary systems (with both antibiotics present simultaneously), adding 5 equal concentrations of the antibiotics (between 1 and 50 µmol L−1). The adsorption percentages were higher for TC (close to 100% onto pine bark and oak ash, and between 40 and 85% onto mussel shell) than for SDZ (75–100% onto pine bark, and generally less than 10% on oak ash and mussel shell). Pine bark performed as the best adsorbent since TC adsorption remained close to 100% throughout the entire concentration range tested, while it was between 75 and 100% for SDZ. Desorption was always higher for SDZ than for TC. The results of this study could be useful to design practices to protected environmental compartments receiving discharges that simultaneously contain the two antibiotics here evaluated, and therefore could be relevant in terms of protection of the environment and public health.

ACS Style

Raquel Cela-Dablanca; Manuel Conde-Cid; Gustavo Ferreira-Coelho; Manuel Arias-Estévez; David Fernández-Calviño; Avelino Núñez-Delgado; María J. Fernández-Sanjurjo; Esperanza Álvarez-Rodríguez. Adsorption of Tetracycline and Sulfadiazine onto Three Different Bioadsorbents in Binary Competitive Systems. Processes 2020, 9, 28 .

AMA Style

Raquel Cela-Dablanca, Manuel Conde-Cid, Gustavo Ferreira-Coelho, Manuel Arias-Estévez, David Fernández-Calviño, Avelino Núñez-Delgado, María J. Fernández-Sanjurjo, Esperanza Álvarez-Rodríguez. Adsorption of Tetracycline and Sulfadiazine onto Three Different Bioadsorbents in Binary Competitive Systems. Processes. 2020; 9 (1):28.

Chicago/Turabian Style

Raquel Cela-Dablanca; Manuel Conde-Cid; Gustavo Ferreira-Coelho; Manuel Arias-Estévez; David Fernández-Calviño; Avelino Núñez-Delgado; María J. Fernández-Sanjurjo; Esperanza Álvarez-Rodríguez. 2020. "Adsorption of Tetracycline and Sulfadiazine onto Three Different Bioadsorbents in Binary Competitive Systems." Processes 9, no. 1: 28.

Journal article
Published: 26 November 2020 in International Journal of Environmental Research and Public Health
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The toxicity exerted by the antibiotic sulfadiazine on the growth of soil bacterial communities was studied in two agricultural soils for a period of 100 days. In the short-term (2 days of incubation), the effect of sulfadiazine on bacterial growth was low (no inhibition or inhibition −1). However, sulfadiazine toxicity increased with time, achieving values of 40% inhibition, affecting bacterial growth in both soils after 100 days of incubation. These results, which were here observed for the first time for any antibiotic in soil samples, suggest that long-term experiments would be required for performing an adequate antibiotics risk assessment, as short-term experiments may underestimate toxicity effects.

ACS Style

Vanesa Santás-Miguel; Laura Rodríguez-González; Avelino Núñez-Delgado; Montserrat Díaz-Raviña; Manuel Arias-Estévez; David Fernández-Calviño. The Toxicity Exerted by the Antibiotic Sulfadiazine on the Growth of Soil Bacterial Communities May Increase over Time. International Journal of Environmental Research and Public Health 2020, 17, 8773 .

AMA Style

Vanesa Santás-Miguel, Laura Rodríguez-González, Avelino Núñez-Delgado, Montserrat Díaz-Raviña, Manuel Arias-Estévez, David Fernández-Calviño. The Toxicity Exerted by the Antibiotic Sulfadiazine on the Growth of Soil Bacterial Communities May Increase over Time. International Journal of Environmental Research and Public Health. 2020; 17 (23):8773.

Chicago/Turabian Style

Vanesa Santás-Miguel; Laura Rodríguez-González; Avelino Núñez-Delgado; Montserrat Díaz-Raviña; Manuel Arias-Estévez; David Fernández-Calviño. 2020. "The Toxicity Exerted by the Antibiotic Sulfadiazine on the Growth of Soil Bacterial Communities May Increase over Time." International Journal of Environmental Research and Public Health 17, no. 23: 8773.

Review
Published: 17 November 2020 in Processes
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Veterinary antibiotics are widely used worldwide to treat and prevent infectious diseases, as well as (in countries where allowed) to promote growth and improve feeding efficiency of food-producing animals in livestock activities. Among the different antibiotic classes, tetracyclines and sulfonamides are two of the most used for veterinary proposals. Due to the fact that these compounds are poorly absorbed in the gut of animals, a significant proportion (up to ~90%) of them are excreted unchanged, thus reaching the environment mainly through the application of manures and slurries as fertilizers in agricultural fields. Once in the soil, antibiotics are subjected to a series of physicochemical and biological processes, which depend both on the antibiotic nature and soil characteristics. Adsorption/desorption to soil particles and degradation are the main processes that will affect the persistence, bioavailability, and environmental fate of these pollutants, thus determining their potential impacts and risks on human and ecological health. Taking all this into account, a literature review was conducted in order to shed light on the current knowledge about the occurrence of tetracycline and sulfonamide antibiotics in manures/slurries and agricultural soils, as well as on their fate in the environment. For that, the adsorption/desorption and the degradation (both abiotic and biotic) processes of these pollutants in soils were deeply discussed. Finally, the potential risks of deleterious effects on human and ecological health associated with the presence of these antibiotic residues were assessed. This review contributes to a deeper understanding of the lifecycle of tetracycline and sulfonamide antibiotics in the environment, thus facilitating decision-making for the application of preventive and mitigation measures to reduce its negative impacts and risks to public health.

ACS Style

Manuel Conde-Cid; Avelino Núñez-Delgado; María José Fernández-Sanjurjo; Esperanza Álvarez-Rodríguez; David Fernández-Calviño; Manuel Arias-Estévez. Tetracycline and Sulfonamide Antibiotics in Soils: Presence, Fate and Environmental Risks. Processes 2020, 8, 1479 .

AMA Style

Manuel Conde-Cid, Avelino Núñez-Delgado, María José Fernández-Sanjurjo, Esperanza Álvarez-Rodríguez, David Fernández-Calviño, Manuel Arias-Estévez. Tetracycline and Sulfonamide Antibiotics in Soils: Presence, Fate and Environmental Risks. Processes. 2020; 8 (11):1479.

Chicago/Turabian Style

Manuel Conde-Cid; Avelino Núñez-Delgado; María José Fernández-Sanjurjo; Esperanza Álvarez-Rodríguez; David Fernández-Calviño; Manuel Arias-Estévez. 2020. "Tetracycline and Sulfonamide Antibiotics in Soils: Presence, Fate and Environmental Risks." Processes 8, no. 11: 1479.

Discussion
Published: 12 November 2020 in Environmental Research
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Wastewater based epidemiology is increasingly being considered as a potentially useful tool for early warning about eventual new COVID-19 outbreaks. In addition, some authors are investigating on the detection and quantification of SARS-CoV-2 in sewage sludge. However, no paper has been published up to date indicating how this virus could be quantified in soil samples. In view of that, we review available data searching for methodological approaches that could guide on the quantification of SARS-CoV-2 (and even other pathogenic microorganisms) in soils.

ACS Style

Manuel Conde-Cid; Manuel Arias-Estévez; Avelino Núñez-Delgado. How to study SARS-CoV-2 in soils? Environmental Research 2020, 110464 .

AMA Style

Manuel Conde-Cid, Manuel Arias-Estévez, Avelino Núñez-Delgado. How to study SARS-CoV-2 in soils? Environmental Research. 2020; ():110464.

Chicago/Turabian Style

Manuel Conde-Cid; Manuel Arias-Estévez; Avelino Núñez-Delgado. 2020. "How to study SARS-CoV-2 in soils?" Environmental Research , no. : 110464.