Relationships among Physicochemical, Microbiological, and Parasitological Parameters, Ecotoxicity, and Biochemical Methane Potential of Pig Slurry

Background: Pig slurry can negatively impact on the environmental, animal, and human health. Knowing the relationship between the organic and inorganic loads, pathogens, and toxicity allows identifying the main parameters to be removed or treated before final disposal. The aim of this study was to e...

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Main Authors: Beily, María Eugenia, Young, Brian Jonathan, Bres, Patricia Alina, Riera, Nicolas Iván, Wang, Wenguo, Crespo, Diana Elvira, Komilis, Dimitrios
Format: Artículo
Language:Inglés
Published: MDPI 2023
Subjects:
Online Access:http://hdl.handle.net/20.500.12123/14056
https://www.mdpi.com/2071-1050/15/4/3172
https://doi.org/10.3390/su15043172
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author Beily, María Eugenia
Young, Brian Jonathan
Bres, Patricia Alina
Riera, Nicolas Iván
Wang, Wenguo
Crespo, Diana Elvira
Komilis, Dimitrios
author_browse Beily, María Eugenia
Bres, Patricia Alina
Crespo, Diana Elvira
Komilis, Dimitrios
Riera, Nicolas Iván
Wang, Wenguo
Young, Brian Jonathan
author_facet Beily, María Eugenia
Young, Brian Jonathan
Bres, Patricia Alina
Riera, Nicolas Iván
Wang, Wenguo
Crespo, Diana Elvira
Komilis, Dimitrios
author_sort Beily, María Eugenia
collection INTA Digital
description Background: Pig slurry can negatively impact on the environmental, animal, and human health. Knowing the relationship between the organic and inorganic loads, pathogens, and toxicity allows identifying the main parameters to be removed or treated before final disposal. The aim of this study was to evaluate the relationships between the physicochemical properties, microbiological, and parasitological content, ecotoxicological effects, and biochemical methane potential (BMP) of pig slurries. Methods: Ten pig slurry samples at two production stages were characterized and a BMP test at two substrate/inoculum (S/I) ratios was conducted to compare the methane yields. Results: We found high content of Cu, Zn, quaternary ammonium, pathogenic microorganisms (E. coli and Salmonella), and parasites (Trichuris and Trichostrongylus). Toxicity on lettuce, radish, and Daphnia was observed with a slurry concentration greater than 1.35%. Positive correlations were found between toxicity on Daphnia and chemical oxygen demand (COD), sulfate, Zn, and Cu, as well as between phytotoxicity and COD, NH4, Na, K, and conductivity. The lowest S/I ratio showed 13% more methane yield. It was associated with high removals of COD and volatile fatty acids. Conclusions: We recommend using a low S/I ratio to treat pig slurry as it improves the efficiency of the anaerobic process.
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institution Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina)
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publishDateRange 2023
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spelling INTA140562023-02-24T10:23:41Z Relationships among Physicochemical, Microbiological, and Parasitological Parameters, Ecotoxicity, and Biochemical Methane Potential of Pig Slurry Beily, María Eugenia Young, Brian Jonathan Bres, Patricia Alina Riera, Nicolas Iván Wang, Wenguo Crespo, Diana Elvira Komilis, Dimitrios Cerdo Estiércol Fluido Ecotoxicidad Swine Slurry Ecotoxicity Waste Management Manejo de Desechos Background: Pig slurry can negatively impact on the environmental, animal, and human health. Knowing the relationship between the organic and inorganic loads, pathogens, and toxicity allows identifying the main parameters to be removed or treated before final disposal. The aim of this study was to evaluate the relationships between the physicochemical properties, microbiological, and parasitological content, ecotoxicological effects, and biochemical methane potential (BMP) of pig slurries. Methods: Ten pig slurry samples at two production stages were characterized and a BMP test at two substrate/inoculum (S/I) ratios was conducted to compare the methane yields. Results: We found high content of Cu, Zn, quaternary ammonium, pathogenic microorganisms (E. coli and Salmonella), and parasites (Trichuris and Trichostrongylus). Toxicity on lettuce, radish, and Daphnia was observed with a slurry concentration greater than 1.35%. Positive correlations were found between toxicity on Daphnia and chemical oxygen demand (COD), sulfate, Zn, and Cu, as well as between phytotoxicity and COD, NH4, Na, K, and conductivity. The lowest S/I ratio showed 13% more methane yield. It was associated with high removals of COD and volatile fatty acids. Conclusions: We recommend using a low S/I ratio to treat pig slurry as it improves the efficiency of the anaerobic process. Instituto de Microbiología y Zoología Agrícola (IMYZA) Fil: Beily, María Eugenia. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola; Argentina Fil: Young, Brian Jonathan. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola; Argentina Fil: Bres, Patricia Alina. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola; Argentina Fil: Riera, Nicolas Iván. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola; Argentina Fil: Wang, Wenguo. Biogas Institute of Ministry of Agriculture and Rural Affairs. Key Laboratory of Development and Application of Rural Renewable Energy; China Fil: Crespo, Diana Elvira. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola; Argentina Fil: Komilis, Dimitrios. Democritus University of Thrace. Department of Environmental Engineering; Grecia 2023-02-24T10:15:46Z 2023-02-24T10:15:46Z 2023-02-09 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/14056 https://www.mdpi.com/2071-1050/15/4/3172 2071-1050 https://doi.org/10.3390/su15043172 eng info:eu-repograntAgreement/INTA/PNNAT-1128042/AR./Tecnologías y estrategias de gestión de residuos y efluentes en sistemas agropecuarios y agroindustriales. info:eu-repograntAgreement/INTA/2019-PD-E2-I518-002/2019-PD-E2-I518-002/AR./Estudio del impacto ambiental, gestión y tratamiento de residuos y efluentes sobre sistemas agropecuarios y agroindustriales para su valorización agronómica info:eu-repograntAgreement/INTA/2019-PE-E7-I149-001/2019-PE-E7-I149-001/AR./Bioenergía generada en origen como aporte al desarrollo territorial info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf MDPI Sustainability 15 (4) : 3172 (Febrero 2023)
spellingShingle Cerdo
Estiércol Fluido
Ecotoxicidad
Swine
Slurry
Ecotoxicity
Waste Management
Manejo de Desechos
Beily, María Eugenia
Young, Brian Jonathan
Bres, Patricia Alina
Riera, Nicolas Iván
Wang, Wenguo
Crespo, Diana Elvira
Komilis, Dimitrios
Relationships among Physicochemical, Microbiological, and Parasitological Parameters, Ecotoxicity, and Biochemical Methane Potential of Pig Slurry
title Relationships among Physicochemical, Microbiological, and Parasitological Parameters, Ecotoxicity, and Biochemical Methane Potential of Pig Slurry
title_full Relationships among Physicochemical, Microbiological, and Parasitological Parameters, Ecotoxicity, and Biochemical Methane Potential of Pig Slurry
title_fullStr Relationships among Physicochemical, Microbiological, and Parasitological Parameters, Ecotoxicity, and Biochemical Methane Potential of Pig Slurry
title_full_unstemmed Relationships among Physicochemical, Microbiological, and Parasitological Parameters, Ecotoxicity, and Biochemical Methane Potential of Pig Slurry
title_short Relationships among Physicochemical, Microbiological, and Parasitological Parameters, Ecotoxicity, and Biochemical Methane Potential of Pig Slurry
title_sort relationships among physicochemical microbiological and parasitological parameters ecotoxicity and biochemical methane potential of pig slurry
topic Cerdo
Estiércol Fluido
Ecotoxicidad
Swine
Slurry
Ecotoxicity
Waste Management
Manejo de Desechos
url http://hdl.handle.net/20.500.12123/14056
https://www.mdpi.com/2071-1050/15/4/3172
https://doi.org/10.3390/su15043172
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