Caracterização de cenários de exposição a perigos microbiológicos relacionados ao uso agrícola de biossólidos
Autor(a) principal: | |
---|---|
Data de Publicação: | 2010 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | LOCUS Repositório Institucional da UFV |
Texto Completo: | http://locus.ufv.br/handle/123456789/5032 |
Resumo: | Sewage sludge is the major residue produced in Sewage Treatment Stations (STS). One of its possible applications, agricultural use of biosolids - a term which characterizes sewage sludge submitted to hygienization process - presents productive and reduced cost advantages. However, there is a concern of environmental contamination and risk of disease transmission through pathogenic microorganisms. This work aimed to evaluate the decay of pathogenic organisms in hygienized sewage sludge by solarization and lime addition, at field scale, and to estimate the time of permanence of microorganisms in soils fertilized by biosolids in experiments in laboratory conditions. Sewage sludge from a UASB reactor was fortnightly disposed in drying beds and three different lots were monitored, out of which samples were collected for analysis of microbiological parameters every seven days until class B biosolid characteristics were reached, following CONAMA 375/2006 specifications. The parameters monitored were: total solids, pH, humidity, total coliforms, Escherichia coli, Salmonella sp. and helminth eggs. Mixtures in the proportion of 75, 50 and 25% of biosolid with soil were prepared in the laboratory experiments, besides a biosolid treatment. The treatments were placed in 2 kg vases, with 3 repetitions, and submitted to 100 mL irrigation, weekly. The results indicated that hygienization was faster when the lime addition process was applied. Besides, the laboratory experiments confirmed that the biosolid+limed soil mixtures presented a drastic reduction of the remaining pathogenic microorganisms, even after hygienization. The concentrations found at 90 days of treatment with 75% of biosolid were 1.85x102 NMP/g of S.T. (?) for total coliforms, absence of E. coli since the start of monitoring and 0.07 helminth eggs per g of S.T. (?) In the treatment with 75% of solarized biosolid, total coliform concentrations of 5.15x104 NMP/g of S.T. (?) were found at 90 days of experiment; absence of E. coli, at the end of the experiment and between 0.48 and 0.12 helminth eggs per g of S.T. The results obtained in this work indicate the efficiency of both hygienization processes and continuity in pathogen reduction even after their application in the soil, confirming their viability for agricultural use. |
id |
UFV_d3adc7813f655410cc1827c434e40626 |
---|---|
oai_identifier_str |
oai:locus.ufv.br:123456789/5032 |
network_acronym_str |
UFV |
network_name_str |
LOCUS Repositório Institucional da UFV |
repository_id_str |
2145 |
spelling |
Argel, Ketty Del Rosário ViloriaMoreira, Maria Aparecida Scatamburlohttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4797678J6Bastos, Rafael Kopschitz Xavierhttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4781284H6Bevilacqua, Paula Diashttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4727999P6Nero, Luís Augustohttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4763792E2Salcedo, Joaquín Hernán Patarroyohttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4783313T42015-03-26T13:46:52Z2011-08-262015-03-26T13:46:52Z2010-03-24ARGEL, Ketty Del Rosário Viloria. Characterization of scenarios of exposure of microbiological hazards related to the agricultural use of biosolids. 2010. 112 f. Dissertação (Mestrado em Biotecnologia, diagnóstico e controle de doenças; Epidemiologia e controle de qualidade de prod. de) - Universidade Federal de Viçosa, Viçosa, 2010.http://locus.ufv.br/handle/123456789/5032Sewage sludge is the major residue produced in Sewage Treatment Stations (STS). One of its possible applications, agricultural use of biosolids - a term which characterizes sewage sludge submitted to hygienization process - presents productive and reduced cost advantages. However, there is a concern of environmental contamination and risk of disease transmission through pathogenic microorganisms. This work aimed to evaluate the decay of pathogenic organisms in hygienized sewage sludge by solarization and lime addition, at field scale, and to estimate the time of permanence of microorganisms in soils fertilized by biosolids in experiments in laboratory conditions. Sewage sludge from a UASB reactor was fortnightly disposed in drying beds and three different lots were monitored, out of which samples were collected for analysis of microbiological parameters every seven days until class B biosolid characteristics were reached, following CONAMA 375/2006 specifications. The parameters monitored were: total solids, pH, humidity, total coliforms, Escherichia coli, Salmonella sp. and helminth eggs. Mixtures in the proportion of 75, 50 and 25% of biosolid with soil were prepared in the laboratory experiments, besides a biosolid treatment. The treatments were placed in 2 kg vases, with 3 repetitions, and submitted to 100 mL irrigation, weekly. The results indicated that hygienization was faster when the lime addition process was applied. Besides, the laboratory experiments confirmed that the biosolid+limed soil mixtures presented a drastic reduction of the remaining pathogenic microorganisms, even after hygienization. The concentrations found at 90 days of treatment with 75% of biosolid were 1.85x102 NMP/g of S.T. (?) for total coliforms, absence of E. coli since the start of monitoring and 0.07 helminth eggs per g of S.T. (?) In the treatment with 75% of solarized biosolid, total coliform concentrations of 5.15x104 NMP/g of S.T. (?) were found at 90 days of experiment; absence of E. coli, at the end of the experiment and between 0.48 and 0.12 helminth eggs per g of S.T. The results obtained in this work indicate the efficiency of both hygienization processes and continuity in pathogen reduction even after their application in the soil, confirming their viability for agricultural use.O lodo de esgoto é o principal resíduo produzido nas Estações de Tratamento de Esgotos (ETEs). Entre os destinos possíveis, o uso agrícola de biossólidos, nome este que caracteriza o lodo de esgoto submetido a processo de higienização, apresenta vantagens produtivas e de redução de custos; contudo, há preocupação com a possibilidade de contaminação ambiental e risco de transmissão de doenças por microrganismos patogênicos. Este trabalho teve como objetivos avaliar o decaimento de organismos patogênicos em lodo de esgoto higienizado por solarização e caleação, em escala real, e estimar o tempo de permanência dos microorganismos em solos adubados com biossólido em experimentos de bancada. O lodo de um reator UASB era descartado quinzenalmente em leitos de secagem. Foram acompanhados três lotes diferentes, dos quais amostras foram coletadas para análise de parâmetros microbiológicos, a cada sete dias, até alcançar características de biossólido classe B, conforme especificação da CONAMA 375/2006. Os parâmetros monitorados foram: sólidos totais, pH, umidade, coliformes totais, Escherichia coli, Salmonella sp. e ovos de helmintos. Nos experimentos de bancada, foram realizadas misturas na proporção de 75, 50 e 25% de biossólido com solo, além de um tratamento sem biossólido. Os tratamentos foram colocados em vasos com capacidade de 2 kg, com três repetições, e submetidos à irrigação semanal de 100 mL. Os resultados indicaram que a higienização foi mais rápida, quando foi aplicado o processo de caleação. Além disso, constatou-se, nos experimentos de bancada, que as misturas biossólido + solo caleado apresentaram drástica redução dos microrganismos patogênicos remanescentes, mesmo após o processo de higienização. As concentrações encontradas aos 90 dias do tratamento, com 75% de biossólido, foram de 1,85x102 NMP/g de S.T para coliformes totais; ausência de E. coli, desde o princípio do monitoramento; e 0,07 ovos de helmintos por g de S.T. No tratamento com 75% de biossólido solarizado, foram encontradas, aos 90 dias, concentrações de coliformes totais de 5,15x104 NMP/g de S.T.; ausência de E. coli no final do experimento; e ovos de helmintos entre 0,48 e 0,12 ovos por g S.T. Os resultados obtidos indicam que há eficiência em ambos os processos de higienização e continuidade na redução de patógenos, mesmo após a sua aplicação no solo, o que ratifica a sua viabilidade para o uso agrícola.application/pdfporUniversidade Federal de ViçosaMestrado em Medicina VeterináriaUFVBRBiotecnologia, diagnóstico e controle de doenças; Epidemiologia e controle de qualidade de prod. deLodo de esgotoBiossólidosMicroorganismos patogênicosSewage sludgeBiosolidsPathogenic microorganismsCNPQ::CIENCIAS BIOLOGICAS::MICROBIOLOGIA::MICROBIOLOGIA APLICADACaracterização de cenários de exposição a perigos microbiológicos relacionados ao uso agrícola de biossólidosCharacterization of scenarios of exposure of microbiological hazards related to the agricultural use of biosolidsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/openAccessreponame:LOCUS Repositório Institucional da UFVinstname:Universidade Federal de Viçosa (UFV)instacron:UFVORIGINALtexto completo.pdfapplication/pdf1174662https://locus.ufv.br//bitstream/123456789/5032/1/texto%20completo.pdfb8d279c4ce9aa576070293eaf8594b88MD51TEXTtexto completo.pdf.txttexto completo.pdf.txtExtracted texttext/plain176566https://locus.ufv.br//bitstream/123456789/5032/2/texto%20completo.pdf.txt11ea10e1eaa1693515b111c1e2fa7072MD52THUMBNAILtexto completo.pdf.jpgtexto completo.pdf.jpgIM Thumbnailimage/jpeg3575https://locus.ufv.br//bitstream/123456789/5032/3/texto%20completo.pdf.jpgf90ea032478ea653d4e9923194429fa2MD53123456789/50322016-04-11 23:07:22.85oai:locus.ufv.br:123456789/5032Repositório InstitucionalPUBhttps://www.locus.ufv.br/oai/requestfabiojreis@ufv.bropendoar:21452016-04-12T02:07:22LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)false |
dc.title.por.fl_str_mv |
Caracterização de cenários de exposição a perigos microbiológicos relacionados ao uso agrícola de biossólidos |
dc.title.alternative.eng.fl_str_mv |
Characterization of scenarios of exposure of microbiological hazards related to the agricultural use of biosolids |
title |
Caracterização de cenários de exposição a perigos microbiológicos relacionados ao uso agrícola de biossólidos |
spellingShingle |
Caracterização de cenários de exposição a perigos microbiológicos relacionados ao uso agrícola de biossólidos Argel, Ketty Del Rosário Viloria Lodo de esgoto Biossólidos Microorganismos patogênicos Sewage sludge Biosolids Pathogenic microorganisms CNPQ::CIENCIAS BIOLOGICAS::MICROBIOLOGIA::MICROBIOLOGIA APLICADA |
title_short |
Caracterização de cenários de exposição a perigos microbiológicos relacionados ao uso agrícola de biossólidos |
title_full |
Caracterização de cenários de exposição a perigos microbiológicos relacionados ao uso agrícola de biossólidos |
title_fullStr |
Caracterização de cenários de exposição a perigos microbiológicos relacionados ao uso agrícola de biossólidos |
title_full_unstemmed |
Caracterização de cenários de exposição a perigos microbiológicos relacionados ao uso agrícola de biossólidos |
title_sort |
Caracterização de cenários de exposição a perigos microbiológicos relacionados ao uso agrícola de biossólidos |
author |
Argel, Ketty Del Rosário Viloria |
author_facet |
Argel, Ketty Del Rosário Viloria |
author_role |
author |
dc.contributor.author.fl_str_mv |
Argel, Ketty Del Rosário Viloria |
dc.contributor.advisor-co1.fl_str_mv |
Moreira, Maria Aparecida Scatamburlo |
dc.contributor.advisor-co1Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4797678J6 |
dc.contributor.advisor-co2.fl_str_mv |
Bastos, Rafael Kopschitz Xavier |
dc.contributor.advisor-co2Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4781284H6 |
dc.contributor.advisor1.fl_str_mv |
Bevilacqua, Paula Dias |
dc.contributor.advisor1Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4727999P6 |
dc.contributor.referee1.fl_str_mv |
Nero, Luís Augusto |
dc.contributor.referee1Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4763792E2 |
dc.contributor.referee2.fl_str_mv |
Salcedo, Joaquín Hernán Patarroyo |
dc.contributor.referee2Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4783313T4 |
contributor_str_mv |
Moreira, Maria Aparecida Scatamburlo Bastos, Rafael Kopschitz Xavier Bevilacqua, Paula Dias Nero, Luís Augusto Salcedo, Joaquín Hernán Patarroyo |
dc.subject.por.fl_str_mv |
Lodo de esgoto Biossólidos Microorganismos patogênicos |
topic |
Lodo de esgoto Biossólidos Microorganismos patogênicos Sewage sludge Biosolids Pathogenic microorganisms CNPQ::CIENCIAS BIOLOGICAS::MICROBIOLOGIA::MICROBIOLOGIA APLICADA |
dc.subject.eng.fl_str_mv |
Sewage sludge Biosolids Pathogenic microorganisms |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS BIOLOGICAS::MICROBIOLOGIA::MICROBIOLOGIA APLICADA |
description |
Sewage sludge is the major residue produced in Sewage Treatment Stations (STS). One of its possible applications, agricultural use of biosolids - a term which characterizes sewage sludge submitted to hygienization process - presents productive and reduced cost advantages. However, there is a concern of environmental contamination and risk of disease transmission through pathogenic microorganisms. This work aimed to evaluate the decay of pathogenic organisms in hygienized sewage sludge by solarization and lime addition, at field scale, and to estimate the time of permanence of microorganisms in soils fertilized by biosolids in experiments in laboratory conditions. Sewage sludge from a UASB reactor was fortnightly disposed in drying beds and three different lots were monitored, out of which samples were collected for analysis of microbiological parameters every seven days until class B biosolid characteristics were reached, following CONAMA 375/2006 specifications. The parameters monitored were: total solids, pH, humidity, total coliforms, Escherichia coli, Salmonella sp. and helminth eggs. Mixtures in the proportion of 75, 50 and 25% of biosolid with soil were prepared in the laboratory experiments, besides a biosolid treatment. The treatments were placed in 2 kg vases, with 3 repetitions, and submitted to 100 mL irrigation, weekly. The results indicated that hygienization was faster when the lime addition process was applied. Besides, the laboratory experiments confirmed that the biosolid+limed soil mixtures presented a drastic reduction of the remaining pathogenic microorganisms, even after hygienization. The concentrations found at 90 days of treatment with 75% of biosolid were 1.85x102 NMP/g of S.T. (?) for total coliforms, absence of E. coli since the start of monitoring and 0.07 helminth eggs per g of S.T. (?) In the treatment with 75% of solarized biosolid, total coliform concentrations of 5.15x104 NMP/g of S.T. (?) were found at 90 days of experiment; absence of E. coli, at the end of the experiment and between 0.48 and 0.12 helminth eggs per g of S.T. The results obtained in this work indicate the efficiency of both hygienization processes and continuity in pathogen reduction even after their application in the soil, confirming their viability for agricultural use. |
publishDate |
2010 |
dc.date.issued.fl_str_mv |
2010-03-24 |
dc.date.available.fl_str_mv |
2011-08-26 2015-03-26T13:46:52Z |
dc.date.accessioned.fl_str_mv |
2015-03-26T13:46:52Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
ARGEL, Ketty Del Rosário Viloria. Characterization of scenarios of exposure of microbiological hazards related to the agricultural use of biosolids. 2010. 112 f. Dissertação (Mestrado em Biotecnologia, diagnóstico e controle de doenças; Epidemiologia e controle de qualidade de prod. de) - Universidade Federal de Viçosa, Viçosa, 2010. |
dc.identifier.uri.fl_str_mv |
http://locus.ufv.br/handle/123456789/5032 |
identifier_str_mv |
ARGEL, Ketty Del Rosário Viloria. Characterization of scenarios of exposure of microbiological hazards related to the agricultural use of biosolids. 2010. 112 f. Dissertação (Mestrado em Biotecnologia, diagnóstico e controle de doenças; Epidemiologia e controle de qualidade de prod. de) - Universidade Federal de Viçosa, Viçosa, 2010. |
url |
http://locus.ufv.br/handle/123456789/5032 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Viçosa |
dc.publisher.program.fl_str_mv |
Mestrado em Medicina Veterinária |
dc.publisher.initials.fl_str_mv |
UFV |
dc.publisher.country.fl_str_mv |
BR |
dc.publisher.department.fl_str_mv |
Biotecnologia, diagnóstico e controle de doenças; Epidemiologia e controle de qualidade de prod. de |
publisher.none.fl_str_mv |
Universidade Federal de Viçosa |
dc.source.none.fl_str_mv |
reponame:LOCUS Repositório Institucional da UFV instname:Universidade Federal de Viçosa (UFV) instacron:UFV |
instname_str |
Universidade Federal de Viçosa (UFV) |
instacron_str |
UFV |
institution |
UFV |
reponame_str |
LOCUS Repositório Institucional da UFV |
collection |
LOCUS Repositório Institucional da UFV |
bitstream.url.fl_str_mv |
https://locus.ufv.br//bitstream/123456789/5032/1/texto%20completo.pdf https://locus.ufv.br//bitstream/123456789/5032/2/texto%20completo.pdf.txt https://locus.ufv.br//bitstream/123456789/5032/3/texto%20completo.pdf.jpg |
bitstream.checksum.fl_str_mv |
b8d279c4ce9aa576070293eaf8594b88 11ea10e1eaa1693515b111c1e2fa7072 f90ea032478ea653d4e9923194429fa2 |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 MD5 |
repository.name.fl_str_mv |
LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV) |
repository.mail.fl_str_mv |
fabiojreis@ufv.br |
_version_ |
1801213002441031680 |