Aplicação de processo oxidativo avançado na remoção do herbicida atrazina

Detalhes bibliográficos
Autor(a) principal: Dantas, Ádila de Oliveira Sampaio
Data de Publicação: 2021
Tipo de documento: Dissertação
Idioma: por
Título da fonte: Repositório Institucional da UFU
Texto Completo: https://repositorio.ufu.br/handle/123456789/32548
http://doi.org/10.14393/ufu.di.2021.293
Resumo: Brazil is the fifth country with the largest consumption of pesticides in the world and one of the main herbicides used is atrazine (ATZ), with a maximum residue limit (MRL) of 2 μgL-1. Yet, ATZ is banned throughout the European Union and many countries due to its high potential for water and soil contamination, being considered an emerging pollutant (EP) due to its endocrine disruptor characteristic. Current water and wastewater treatments are not suitable to degrade highly recalcitrant organic pollutants such as ATZ, thus, Advanced Oxidative Processes (AOPs) emerge as a viable alternative for mitigating these compounds. This present work has as an object of study the AOPs using photolysis (UV), peroxidation (H2O2), photoperoxidation (UV / H2O2), Fenton, and photo-Fenton in degradation of ATZ. In the UV/H2O2 processes, the condition at pH 5.0 was the most effective with 53.42% degradation of ATZ. Yet, Fenton and photo-Fenton experiments at pH 3.0 have obtained removal efficiencies of ATZ of 69.84 and 78.87%, respectively. The main process variables were analyzed using statistical tools through two factorial designs and one central composite design (CCD). Considerable removals of ATZ obtained for photolysis, peroxidation, photo-peroxidation, and Fenton, however, there was an emphasis for photo-Fenton reactions with an efficiency of 93.77% degradation of ATZ and 17.04% residual H2O2, a condition supposed to be ideal from CCD. Response analysis of ATZ removal percentage, the results were considered statistically significant (p ≤ 0.05). As for the response percentage of residual peroxide hydrogen, the ratio x1 = [Fe2+]/[H2O2] is the source of variation which dictates the response behavior. The ideal multiple response condition was obtained from the Desirability function, and the calculated and real parameters are closely related showing a fit in the validation experiment. However, phytotoxicity with Lactuca sativa suggests that there are toxic byproducts formation in the posttreatment effluent.
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spelling Aplicação de processo oxidativo avançado na remoção do herbicida atrazinaApplication of advanced oxidative process for the degradation of pesticide atrazineAtrazinaProcessos Oxidativos AvançadosUltra-VioletaPeróxido de HidrogênioFoto-fentonDelineamento do Composto CentralAtrazineAdvanced Oxidative ProcessesUltravioletHydrogen PeroxidePhotoFentonCentral Composite DesignCNPQ::ENGENHARIAS::ENGENHARIA QUIMICAEngenharia químicaBrazil is the fifth country with the largest consumption of pesticides in the world and one of the main herbicides used is atrazine (ATZ), with a maximum residue limit (MRL) of 2 μgL-1. Yet, ATZ is banned throughout the European Union and many countries due to its high potential for water and soil contamination, being considered an emerging pollutant (EP) due to its endocrine disruptor characteristic. Current water and wastewater treatments are not suitable to degrade highly recalcitrant organic pollutants such as ATZ, thus, Advanced Oxidative Processes (AOPs) emerge as a viable alternative for mitigating these compounds. This present work has as an object of study the AOPs using photolysis (UV), peroxidation (H2O2), photoperoxidation (UV / H2O2), Fenton, and photo-Fenton in degradation of ATZ. In the UV/H2O2 processes, the condition at pH 5.0 was the most effective with 53.42% degradation of ATZ. Yet, Fenton and photo-Fenton experiments at pH 3.0 have obtained removal efficiencies of ATZ of 69.84 and 78.87%, respectively. The main process variables were analyzed using statistical tools through two factorial designs and one central composite design (CCD). Considerable removals of ATZ obtained for photolysis, peroxidation, photo-peroxidation, and Fenton, however, there was an emphasis for photo-Fenton reactions with an efficiency of 93.77% degradation of ATZ and 17.04% residual H2O2, a condition supposed to be ideal from CCD. Response analysis of ATZ removal percentage, the results were considered statistically significant (p ≤ 0.05). As for the response percentage of residual peroxide hydrogen, the ratio x1 = [Fe2+]/[H2O2] is the source of variation which dictates the response behavior. The ideal multiple response condition was obtained from the Desirability function, and the calculated and real parameters are closely related showing a fit in the validation experiment. However, phytotoxicity with Lactuca sativa suggests that there are toxic byproducts formation in the posttreatment effluent.CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível SuperiorCNPq - Conselho Nacional de Desenvolvimento Científico e TecnológicoFAPEMIG - Fundação de Amparo a Pesquisa do Estado de Minas GeraisDissertação (Mestrado)O Brasil é o quinto país com mais alto consumo de agrotóxicos do mundo e um dos principais herbicidas utilizados é a atrazina (ATZ), com limite máximo de resíduo de 2 μgL-1.Contudo, a ATZ é proibida em toda a União Europeia e em diversos países devido a seu alto potencial de contaminação de água e solo, sendo considerada um dos poluentes emergentes (PE) pela sua característica de disrupção endócrina. Os tratamentos de água e efluente convencionais não são capazes de degradar poluentes orgânicos altamente recalcitrantes como a ATZ, por isso, os processos oxidativos avançados (POA) surgem como uma alternativa viável de mitigação desses compostos. Esse trabalho teve como objeto de estudo os POA do tipo fotólise (UV), peroxidação (H2O2), foto-peroxidação (UV/H2O2), fenton e foto-fenton na degradação da ATZ. Nos processos UV/H2O2 a condição a pH 5,0 foi a mais eficaz com 53,42% de degradação da ATZ. No entanto os experimentos de fenton e foto-fenton a pH 3,0 foram obtidas eficiências de remoção de ATZ de 69,84 e 78,87%, respectivamente. As principais variáveis de processo foram analisadas por ferramentas estatísticas por meio de dois planejamentos fatoriais e um delineamento do composto central (DCC). Elevadas remoções de ATZ foram alcançadas para fotólise, peroxidação, foto-peroxidação e fenton, no entanto, houve um destaque para as reações de foto-fenton com uma eficiência de 93,77% de degradação de ATZ e 17,04% de H2O2 residual, condição dita como ideal a partir do DCC. Para a análise da resposta porcentagem de remoção de ATZ, todos efeitos considerados foram significativos (p ≤ 0,05). Por outro lado, para a resposta de porcentagem de peróxido de hidrogênio residual, a razão x1 = [Fe2+]/[H2O2] é a fonte de variação que comanda o comportamento da resposta. A condição ideal multiresposta foi obtida a partir da função Desirability, e os parâmetros calculados e reais estão intimamente relacionados mostrando um ajuste no experimento de validação. No entanto, a fitotoxicidade com Lactuca sativa sugere que há formação de subprodutos tóxicos no efluente pós-tratamento.2023-07-17Universidade Federal de UberlândiaBrasilPrograma de Pós-graduação em Engenharia QuímicaVieira, Patrícia Angélicahttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4169929D0&tokenCaptchar=03AGdBq2632HFrqpgjns-bk8QUVS3yszvEAeqOltxROgTxoVpX5B834Ydi-sFmTXxpI71hBblQD-QoZM_dj4Kz3J551P9vln1mV-_VQ30hCEp63xLTTFhoX7eJo0DZjwQv-i_sw-CRGmFvQYut3Yx7-fzcAfSdR0-DyI7Lx_gV3no7j4Qm-aUviU4FuenmLPmrE9w_m-i_zakX2o1kT4SL6d_uQdfPG6AWlvt3lylA8zgkKK5njVa7-5We3mR4_ziBs4LSmc-0t5flI5G3-1NOKoVtgqDMeHSJd6RW1_gDJS6E9sZr0WHUCR8lggSOxr98UR-mZbvjD4kkdm9N6pg8Wo8c8fs9P-bacr_ZsUBRO9O17_kV0pt0sT0bB3UjUoK0LyKMFJfTCqkTJfa1XCLVQ1haCl5uEOIP-N_7zmrXwPDZ5XYFYuERcrn9gzMhuUpvZsRT1zRzrzmy7je2nqZYKkg20L5tR_msXzimd7nyoXR6_oeaivMcrwUfEIwzJfpG3TkLpmCMid0im5f9Mpov_v8eAYGQGef1ogCardoso, Vicelma Luizhttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4787074J7&tokenCaptchar=03AGdBq27Wf5pNaRp2HP69BHo_8YID2W0WoRtcael9PHDwwLEMVlavG7biPNgf0zZHczAGzAgSsncXrk4P_sZUFQH9r6lZOCxdrJqvGZCgok8hclhs7LlgXRnKe7OnvMDgwLBK4c4PxJ_SyV6MWccnHW9u0AuPW69UMXCW8uO6EP07slGW-eoEzlfE5A_Knis_x74HCMz0WXhrvvAGy1qcgOSE2cfvZYNABOhBXNHl77CtUDTiQhKU9iQhwjWH03IET-pKENQ7erdf8NzMCAky_aNZHhO9SJRf1WTX8Gmk47tXxhLwzFDPiyt3NvI5nKnI9nBEghqEktS5orxq9JECGrIiME86z4PdHss2ONA3SEfvEvjtfCl8ipG2NOzfIBGLcaElKf1HWJDE9pKPMEKRV3C_IbzR_Ebksb35clkB1N-Ayo7MtwfzQ2q2Pms4nPVnpzLO5gh4UdIy6sVo0t8ydVERnyIjVT3Xnx6qnNYmyp1eHLEpB4Pk0ZhlqbBkhHDxioJknIp3GUmpkW-s2aUt_uosFJohC310IgResende, Miriam Maria dehttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4703538D3&tokenCaptchar=03AGdBq246TkIFWxup4QUB9nnuURQVwyi2ecJfLRhqdHYFCpfgoqIrfp9mKJ1GIGQabfK0lr_B46kFvp03-i-UnVfIvQix7ss0aJ6pIYKhDE-CqqTA2TzAmjc4F7MqWAkLaCczpXKAANg5YLHozqaZk-PGgF181CfALh2h30nrCNNXM-VsOacyG82K3CQlGu-EoAeWelI8dWuVgRF3woYj6UlTPaxaA5Bc3zYimqpYZY3TNkkye3UpmfzrMnFsWHxfjmnbMJWHMGRbvD8SH9vlSpY8UR3PuSoL2100WAHNXkXcg65VmgoTlAqevlAktePpSBMlaexXVLFzwkm41opJbnRkDLPDecWXheY2IqFK5o0TUIVL6dXdtwkm28ECG3Dr53KVhFP_C2bygCwDi14sRfRi0CZuX6F4W0CvXD-422O0F-XLOq0I0ggduQy6IP6Hm1dOdBNtuLxx7MRDYhvuVng8TpzUd67TXejODQZaQfE_kAbdVY_O20WWub7FbzUnlV_TlFFLbN-7gOljKFDBBu5GJxJRSRiI0wCoutinho Filho, Ubirajarahttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4797915J2&tokenCaptchar=03AGdBq27fa-WQmUgiQWc7nK27L7qb_-uODufhTZrrrXj1HgMWA4M95QDqZahQDId_c9K9kUJq_NS8tiJiLBQ3FbMopETPRbhbjt7OdiEW03g3OaAlM-OAh-Ly8oNJgZdXrXl-6XfVlzIdloeM_tU1RIsag6jSAHzU7KOM5alWnW05_88DHCHww6leOKh7sPrxAXvE9m7dA-566jjyudLTLtg7IMD-CKngUfllUgtEM0iBrccbV6ga-M7y7yjsltIrq8lKUjQOK_-WgL2QT2eVdQU2gjQORabl_o-cz5ZShwR21X8wMZwvn1s1-Z_bWj1WMIhRaWWVLlJ-VBfobc69B2s3DMYgeJkW_wuEZ1_z4Oi-haXm6BAHfzKpdslgClOsQprm02Rt05NUckSa4T4eyilcVSS7snNW_vuEWWHD6JJea7jjNI1anVuCQ-N3vJ0QZIhS3BaYR565oVFw-nYVtOlFG0og4l2g6bJ6ZR93DZS0S_r3grsgq4xucqFLVw4LXVQ_tC942PMe42w4nsGgV_qK1L5tm7lI9ACarvalho, Sandra Helena Vieira dehttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4785914D7&tokenCaptchar=03AGdBq27JQKmdOw089ebVYkEPpyrNpE4J5ca8QkVsLMrCDUHjjxO2skMOW1I0EkDlZvHQFoUiw74fxkeJL08ABlFf8DRP0HlC5xc6gGGdgXEkBtQnbQOK373hNsdxxMGo7N9mxIHnwhdKXwbwXiNam2qUMygHAWdaxnVMtSvMN0BknswE3xWWg-Ov7kDGHTAVDN2J760p4e82QiNiStPal01H4PK5kt8LgFwHDhFvLAhN_cX-8OXKpznhxLTb2kUhXTzXn4MNDOuiqvza-KIlazXJJK6K4G3j0AERRKErMlcar65vV8ER1VzbEuKmZIz8EKm2V3ubNIl65oY-xew8STdOcC488yd88lI-9JqnOrVZsWs_5daLn2izDHAPXUEDSdtpoYmad_dEzZC3I7pMX2ohsCu68TaQGDb_a6E8PkbUhs5p90t-lHU4VubCClXgH_lU95KIuvFbKafSsknsOufssJ3ixFaf8JP69QE2DMSR5p8MtAexAqYZq9vG3FXrIAuDBWBe9-Y1uRzIX_S0bdHUxKL_zZkJYwDantas, Ádila de Oliveira Sampaio2021-08-03T19:39:44Z2021-08-03T19:39:44Z2021-06-23info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfDANTAS, Ádila de Oliveira Sampaio. Aplicação de processo oxidativo avançado na remoção do herbicida atrazina. 2021. 122 f. Dissertação (Mestrado em Engenharia Química) - Universidade Federal de Uberlândia, Uberlândia, 2021. DOI http://doi.org/10.14393/ufu.di.2021.293.https://repositorio.ufu.br/handle/123456789/32548http://doi.org/10.14393/ufu.di.2021.293porhttp://creativecommons.org/licenses/by-nc-nd/3.0/us/info:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFUinstname:Universidade Federal de Uberlândia (UFU)instacron:UFU2023-07-31T18:38:01Zoai:repositorio.ufu.br:123456789/32548Repositório InstitucionalONGhttp://repositorio.ufu.br/oai/requestdiinf@dirbi.ufu.bropendoar:2023-07-31T18:38:01Repositório Institucional da UFU - Universidade Federal de Uberlândia (UFU)false
dc.title.none.fl_str_mv Aplicação de processo oxidativo avançado na remoção do herbicida atrazina
Application of advanced oxidative process for the degradation of pesticide atrazine
title Aplicação de processo oxidativo avançado na remoção do herbicida atrazina
spellingShingle Aplicação de processo oxidativo avançado na remoção do herbicida atrazina
Dantas, Ádila de Oliveira Sampaio
Atrazina
Processos Oxidativos Avançados
Ultra-Violeta
Peróxido de Hidrogênio
Foto-fenton
Delineamento do Composto Central
Atrazine
Advanced Oxidative Processes
Ultraviolet
Hydrogen Peroxide
PhotoFenton
Central Composite Design
CNPQ::ENGENHARIAS::ENGENHARIA QUIMICA
Engenharia química
title_short Aplicação de processo oxidativo avançado na remoção do herbicida atrazina
title_full Aplicação de processo oxidativo avançado na remoção do herbicida atrazina
title_fullStr Aplicação de processo oxidativo avançado na remoção do herbicida atrazina
title_full_unstemmed Aplicação de processo oxidativo avançado na remoção do herbicida atrazina
title_sort Aplicação de processo oxidativo avançado na remoção do herbicida atrazina
author Dantas, Ádila de Oliveira Sampaio
author_facet Dantas, Ádila de Oliveira Sampaio
author_role author
dc.contributor.none.fl_str_mv Vieira, Patrícia Angélica
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Cardoso, Vicelma Luiz
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Resende, Miriam Maria de
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Coutinho Filho, Ubirajara
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Carvalho, Sandra Helena Vieira de
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dc.contributor.author.fl_str_mv Dantas, Ádila de Oliveira Sampaio
dc.subject.por.fl_str_mv Atrazina
Processos Oxidativos Avançados
Ultra-Violeta
Peróxido de Hidrogênio
Foto-fenton
Delineamento do Composto Central
Atrazine
Advanced Oxidative Processes
Ultraviolet
Hydrogen Peroxide
PhotoFenton
Central Composite Design
CNPQ::ENGENHARIAS::ENGENHARIA QUIMICA
Engenharia química
topic Atrazina
Processos Oxidativos Avançados
Ultra-Violeta
Peróxido de Hidrogênio
Foto-fenton
Delineamento do Composto Central
Atrazine
Advanced Oxidative Processes
Ultraviolet
Hydrogen Peroxide
PhotoFenton
Central Composite Design
CNPQ::ENGENHARIAS::ENGENHARIA QUIMICA
Engenharia química
description Brazil is the fifth country with the largest consumption of pesticides in the world and one of the main herbicides used is atrazine (ATZ), with a maximum residue limit (MRL) of 2 μgL-1. Yet, ATZ is banned throughout the European Union and many countries due to its high potential for water and soil contamination, being considered an emerging pollutant (EP) due to its endocrine disruptor characteristic. Current water and wastewater treatments are not suitable to degrade highly recalcitrant organic pollutants such as ATZ, thus, Advanced Oxidative Processes (AOPs) emerge as a viable alternative for mitigating these compounds. This present work has as an object of study the AOPs using photolysis (UV), peroxidation (H2O2), photoperoxidation (UV / H2O2), Fenton, and photo-Fenton in degradation of ATZ. In the UV/H2O2 processes, the condition at pH 5.0 was the most effective with 53.42% degradation of ATZ. Yet, Fenton and photo-Fenton experiments at pH 3.0 have obtained removal efficiencies of ATZ of 69.84 and 78.87%, respectively. The main process variables were analyzed using statistical tools through two factorial designs and one central composite design (CCD). Considerable removals of ATZ obtained for photolysis, peroxidation, photo-peroxidation, and Fenton, however, there was an emphasis for photo-Fenton reactions with an efficiency of 93.77% degradation of ATZ and 17.04% residual H2O2, a condition supposed to be ideal from CCD. Response analysis of ATZ removal percentage, the results were considered statistically significant (p ≤ 0.05). As for the response percentage of residual peroxide hydrogen, the ratio x1 = [Fe2+]/[H2O2] is the source of variation which dictates the response behavior. The ideal multiple response condition was obtained from the Desirability function, and the calculated and real parameters are closely related showing a fit in the validation experiment. However, phytotoxicity with Lactuca sativa suggests that there are toxic byproducts formation in the posttreatment effluent.
publishDate 2021
dc.date.none.fl_str_mv 2021-08-03T19:39:44Z
2021-08-03T19:39:44Z
2021-06-23
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.uri.fl_str_mv DANTAS, Ádila de Oliveira Sampaio. Aplicação de processo oxidativo avançado na remoção do herbicida atrazina. 2021. 122 f. Dissertação (Mestrado em Engenharia Química) - Universidade Federal de Uberlândia, Uberlândia, 2021. DOI http://doi.org/10.14393/ufu.di.2021.293.
https://repositorio.ufu.br/handle/123456789/32548
http://doi.org/10.14393/ufu.di.2021.293
identifier_str_mv DANTAS, Ádila de Oliveira Sampaio. Aplicação de processo oxidativo avançado na remoção do herbicida atrazina. 2021. 122 f. Dissertação (Mestrado em Engenharia Química) - Universidade Federal de Uberlândia, Uberlândia, 2021. DOI http://doi.org/10.14393/ufu.di.2021.293.
url https://repositorio.ufu.br/handle/123456789/32548
http://doi.org/10.14393/ufu.di.2021.293
dc.language.iso.fl_str_mv por
language por
dc.rights.driver.fl_str_mv http://creativecommons.org/licenses/by-nc-nd/3.0/us/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/3.0/us/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal de Uberlândia
Brasil
Programa de Pós-graduação em Engenharia Química
publisher.none.fl_str_mv Universidade Federal de Uberlândia
Brasil
Programa de Pós-graduação em Engenharia Química
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFU
instname:Universidade Federal de Uberlândia (UFU)
instacron:UFU
instname_str Universidade Federal de Uberlândia (UFU)
instacron_str UFU
institution UFU
reponame_str Repositório Institucional da UFU
collection Repositório Institucional da UFU
repository.name.fl_str_mv Repositório Institucional da UFU - Universidade Federal de Uberlândia (UFU)
repository.mail.fl_str_mv diinf@dirbi.ufu.br
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