Comparison between effects of manothermosonication and isolated ultrasonic techniques on microbial inactivation of a hospital laundry effluent

Detalhes bibliográficos
Autor(a) principal: Andrade Filho , Manoel Pereira de
Data de Publicação: 2022
Outros Autores: Silva, Rita de Cássia Freire Soares da, Araújo , Gleice Paula de, Santos, Leonardo Bandeira dos, Pedrosa Junior, Leonildo Pereira, Francisco da Costa Neto, Benjamim, Asfora Sarubbo, Leonie, Benachour , Mohand, Santos, Valdemir Alexandre dos
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Research, Society and Development
Texto Completo: https://rsdjournal.org/index.php/rsd/article/view/32792
Resumo: Microbial inactivation using only Ultrasound (US) vibrations presents considerable advantages by applying green techniques with non-generation of greenhouse gases, eliminating chemicals, and operating conditions close to environmental conditions. However, industrial effluent treatment systems have been investigated as a microbial inactivation step, using isolated US associated with thermal (T) and manometric (P) microbial inactivation techniques. A stainless-steel bench prototype was built for the present study, operating in continuous mode, with a 2.5 L volume test chamber. The indicator microorganism detected in the effluent of a hospital laundry located in the Agreste region of the state of Pernambuco, Brazil, was the E. coli bacterium. In addition to the isolated US effect, US/T, US/P, and US/T/P combinations were obtained using a central composite design (CCD). The factors used for the CCD were frequency, hydraulic detention time, temperature, and pressure. The results showed that the lethality rate increased with the frequency and time of hydraulic detention but was reduced when increasing temperature from 30°C to 50°C and increasing pressure between 1.0 bar and 1.8 bar. Isolated ultrasonic vibrations, at 120 kHz and with 10-minute HRT, reached an inactivation efficiency of 98%. Such a value was found using the thermomannosonic condition around 40 min. The use of the isolated US vibration technique proved advantageous, mainly due to the efficient inactivation results and potential energy and chemical reductions.
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spelling Comparison between effects of manothermosonication and isolated ultrasonic techniques on microbial inactivation of a hospital laundry effluent Comparación entre los efectos de la manotermosonicación y las técnicas ultrasónicas aisladas en la inactivación microbiana de un efluente de lavandería hospitalaria Comparação entre os efeitos da manotermossonicação e das técnicas ultrassônicas isoladas na inativação microbiana de um efluente de lavanderia hospitalar Vibraciones ultrasónicasLavandería hospitalariaInactivación microbianaDCCRTecnología verde.Vibrações ultrassônicasLavanderia hospitalarInativação microbianaDCCRTecnologia verde.Ultrasonic vibrationsHospital laundryMicrobial inactivationRCCDGreen technology.Microbial inactivation using only Ultrasound (US) vibrations presents considerable advantages by applying green techniques with non-generation of greenhouse gases, eliminating chemicals, and operating conditions close to environmental conditions. However, industrial effluent treatment systems have been investigated as a microbial inactivation step, using isolated US associated with thermal (T) and manometric (P) microbial inactivation techniques. A stainless-steel bench prototype was built for the present study, operating in continuous mode, with a 2.5 L volume test chamber. The indicator microorganism detected in the effluent of a hospital laundry located in the Agreste region of the state of Pernambuco, Brazil, was the E. coli bacterium. In addition to the isolated US effect, US/T, US/P, and US/T/P combinations were obtained using a central composite design (CCD). The factors used for the CCD were frequency, hydraulic detention time, temperature, and pressure. The results showed that the lethality rate increased with the frequency and time of hydraulic detention but was reduced when increasing temperature from 30°C to 50°C and increasing pressure between 1.0 bar and 1.8 bar. Isolated ultrasonic vibrations, at 120 kHz and with 10-minute HRT, reached an inactivation efficiency of 98%. Such a value was found using the thermomannosonic condition around 40 min. The use of the isolated US vibration technique proved advantageous, mainly due to the efficient inactivation results and potential energy and chemical reductions.La inactivación microbiana usando solo vibraciones de Ultrasonido (US) presenta ventajas considerables al aplicar técnicas verdes con no generación de gases de efecto invernadero, eliminación de químicos y condiciones de operación cercanas a las ambientales. Sin embargo, los sistemas de tratamiento de efluentes industriales han sido investigados como un paso de inactivación microbiana, usando US aislados asociados con técnicas de inactivación microbiana térmica (T) y manométrica (P). Para el presente estudio se construyó un prototipo de banco de acero inoxidable, operando en modo continuo, con cámara de ensayo de 2,5 L de volumen. El microorganismo indicador detectado en el efluente de una lavandería hospitalaria ubicada en la región de Agreste, estado de Pernambuco, Brasil, fue la bacteria E. coli. Además del efecto US aislado, se obtuvieron combinaciones US/T, US/P y US/T/P utilizando un diseño compuesto central (DCC). Los factores utilizados para el DCC fueron frecuencia, tiempo de detención hidráulica, temperatura y presión. Los resultados mostraron que la tasa de letalidad aumentó con la frecuencia y el tiempo de detención hidráulica pero se redujo al aumentar la temperatura de 30°C a 50°C y aumentar la presión entre 1,0 bar y 1,8 bar. Las vibraciones ultrasónicas aisladas, a 120 kHz y con TRH de 10 minutos, alcanzaron una eficiencia de inactivación del 98%. Tal valor se encontró usando la condición termomanosónica alrededor de 40 min. El uso de la técnica de vibración aislada de EE. UU. resultó ventajoso, principalmente debido a los resultados de inactivación eficientes y las reducciones químicas y de energía potencial.A inativação microbiana utilizando apenas vibrações de Ultrassom (US) apresenta vantagens consideráveis ao aplicar técnicas verdes com não geração de gases de efeito estufa, eliminação de produtos químicos e condições de operação próximas às condições ambientais. No entanto, sistemas de tratamento de efluentes industriais têm sido investigados como uma etapa de inativação microbiana, utilizando US isolados associados a técnicas de inativação microbiana térmica (T) e manométrica (P). Um protótipo de bancada de aço inoxidável foi construído para o presente estudo, operando em modo contínuo, com uma câmara de teste de 2,5 L de volume. O microrganismo indicador detectado no efluente de uma lavanderia hospitalar localizada no Agreste do estado de Pernambuco, Brasil, foi a bactéria E. coli. Além do efeito de US isolado, combinações de US/T, US/P e US/T/P foram obtidas usando um delineamento composto central (DCC). Os fatores utilizados para o DCC foram frequência, tempo de detenção hidráulica, temperatura e pressão. Os resultados mostraram que a taxa de letalidade aumentou com a frequência e o tempo de detenção hidráulica, mas foi reduzida ao aumentar a temperatura de 30°C para 50°C e aumentar a pressão entre 1,0 bar e 1,8 bar. Vibrações ultrassônicas isoladas, a 120 kHz e com TRH de 10 minutos, atingiram uma eficiência de inativação de 98%. Tal valor foi encontrado usando a condição termomanosônica em torno de 40 min. A utilização da técnica de vibração US isolada mostrou-se vantajosa, principalmente devido aos resultados de inativação eficientes e potenciais reduções energéticas e químicas.Research, Society and Development2022-08-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/3279210.33448/rsd-v11i10.32792Research, Society and Development; Vol. 11 No. 10; e379111032792Research, Society and Development; Vol. 11 Núm. 10; e379111032792Research, Society and Development; v. 11 n. 10; e3791110327922525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIenghttps://rsdjournal.org/index.php/rsd/article/view/32792/27894Copyright (c) 2022 Manoel Pereira de Andrade Filho ; Rita de Cássia Freire Soares da Silva; Gleice Paula de Araújo ; Leonardo Bandeira dos Santos; Leonildo Pereira Pedrosa Junior; Benjamim Francisco da Costa Neto; Leonie Asfora Sarubbo; Mohand Benachour ; Valdemir Alexandre dos Santoshttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccess Andrade Filho , Manoel Pereira deSilva, Rita de Cássia Freire Soares da Araújo , Gleice Paula de Santos, Leonardo Bandeira dos Pedrosa Junior, Leonildo Pereira Francisco da Costa Neto, Benjamim Asfora Sarubbo, Leonie Benachour , Mohand Santos, Valdemir Alexandre dos2022-08-12T22:23:03Zoai:ojs.pkp.sfu.ca:article/32792Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-01-17T09:48:39.683870Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false
dc.title.none.fl_str_mv Comparison between effects of manothermosonication and isolated ultrasonic techniques on microbial inactivation of a hospital laundry effluent
Comparación entre los efectos de la manotermosonicación y las técnicas ultrasónicas aisladas en la inactivación microbiana de un efluente de lavandería hospitalaria
Comparação entre os efeitos da manotermossonicação e das técnicas ultrassônicas isoladas na inativação microbiana de um efluente de lavanderia hospitalar
title Comparison between effects of manothermosonication and isolated ultrasonic techniques on microbial inactivation of a hospital laundry effluent
spellingShingle Comparison between effects of manothermosonication and isolated ultrasonic techniques on microbial inactivation of a hospital laundry effluent
Andrade Filho , Manoel Pereira de
Vibraciones ultrasónicas
Lavandería hospitalaria
Inactivación microbiana
DCCR
Tecnología verde.
Vibrações ultrassônicas
Lavanderia hospitalar
Inativação microbiana
DCCR
Tecnologia verde.
Ultrasonic vibrations
Hospital laundry
Microbial inactivation
RCCD
Green technology.
title_short Comparison between effects of manothermosonication and isolated ultrasonic techniques on microbial inactivation of a hospital laundry effluent
title_full Comparison between effects of manothermosonication and isolated ultrasonic techniques on microbial inactivation of a hospital laundry effluent
title_fullStr Comparison between effects of manothermosonication and isolated ultrasonic techniques on microbial inactivation of a hospital laundry effluent
title_full_unstemmed Comparison between effects of manothermosonication and isolated ultrasonic techniques on microbial inactivation of a hospital laundry effluent
title_sort Comparison between effects of manothermosonication and isolated ultrasonic techniques on microbial inactivation of a hospital laundry effluent
author Andrade Filho , Manoel Pereira de
author_facet Andrade Filho , Manoel Pereira de
Silva, Rita de Cássia Freire Soares da
Araújo , Gleice Paula de
Santos, Leonardo Bandeira dos
Pedrosa Junior, Leonildo Pereira
Francisco da Costa Neto, Benjamim
Asfora Sarubbo, Leonie
Benachour , Mohand
Santos, Valdemir Alexandre dos
author_role author
author2 Silva, Rita de Cássia Freire Soares da
Araújo , Gleice Paula de
Santos, Leonardo Bandeira dos
Pedrosa Junior, Leonildo Pereira
Francisco da Costa Neto, Benjamim
Asfora Sarubbo, Leonie
Benachour , Mohand
Santos, Valdemir Alexandre dos
author2_role author
author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Andrade Filho , Manoel Pereira de
Silva, Rita de Cássia Freire Soares da
Araújo , Gleice Paula de
Santos, Leonardo Bandeira dos
Pedrosa Junior, Leonildo Pereira
Francisco da Costa Neto, Benjamim
Asfora Sarubbo, Leonie
Benachour , Mohand
Santos, Valdemir Alexandre dos
dc.subject.por.fl_str_mv Vibraciones ultrasónicas
Lavandería hospitalaria
Inactivación microbiana
DCCR
Tecnología verde.
Vibrações ultrassônicas
Lavanderia hospitalar
Inativação microbiana
DCCR
Tecnologia verde.
Ultrasonic vibrations
Hospital laundry
Microbial inactivation
RCCD
Green technology.
topic Vibraciones ultrasónicas
Lavandería hospitalaria
Inactivación microbiana
DCCR
Tecnología verde.
Vibrações ultrassônicas
Lavanderia hospitalar
Inativação microbiana
DCCR
Tecnologia verde.
Ultrasonic vibrations
Hospital laundry
Microbial inactivation
RCCD
Green technology.
description Microbial inactivation using only Ultrasound (US) vibrations presents considerable advantages by applying green techniques with non-generation of greenhouse gases, eliminating chemicals, and operating conditions close to environmental conditions. However, industrial effluent treatment systems have been investigated as a microbial inactivation step, using isolated US associated with thermal (T) and manometric (P) microbial inactivation techniques. A stainless-steel bench prototype was built for the present study, operating in continuous mode, with a 2.5 L volume test chamber. The indicator microorganism detected in the effluent of a hospital laundry located in the Agreste region of the state of Pernambuco, Brazil, was the E. coli bacterium. In addition to the isolated US effect, US/T, US/P, and US/T/P combinations were obtained using a central composite design (CCD). The factors used for the CCD were frequency, hydraulic detention time, temperature, and pressure. The results showed that the lethality rate increased with the frequency and time of hydraulic detention but was reduced when increasing temperature from 30°C to 50°C and increasing pressure between 1.0 bar and 1.8 bar. Isolated ultrasonic vibrations, at 120 kHz and with 10-minute HRT, reached an inactivation efficiency of 98%. Such a value was found using the thermomannosonic condition around 40 min. The use of the isolated US vibration technique proved advantageous, mainly due to the efficient inactivation results and potential energy and chemical reductions.
publishDate 2022
dc.date.none.fl_str_mv 2022-08-04
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://rsdjournal.org/index.php/rsd/article/view/32792
10.33448/rsd-v11i10.32792
url https://rsdjournal.org/index.php/rsd/article/view/32792
identifier_str_mv 10.33448/rsd-v11i10.32792
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://rsdjournal.org/index.php/rsd/article/view/32792/27894
dc.rights.driver.fl_str_mv https://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Research, Society and Development
publisher.none.fl_str_mv Research, Society and Development
dc.source.none.fl_str_mv Research, Society and Development; Vol. 11 No. 10; e379111032792
Research, Society and Development; Vol. 11 Núm. 10; e379111032792
Research, Society and Development; v. 11 n. 10; e379111032792
2525-3409
reponame:Research, Society and Development
instname:Universidade Federal de Itajubá (UNIFEI)
instacron:UNIFEI
instname_str Universidade Federal de Itajubá (UNIFEI)
instacron_str UNIFEI
institution UNIFEI
reponame_str Research, Society and Development
collection Research, Society and Development
repository.name.fl_str_mv Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)
repository.mail.fl_str_mv rsd.articles@gmail.com
_version_ 1797052796947660800

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