EMPIRICAL MODELS FOR PERFORMANCE OF DRIPPERS APPLYING CASHEW NUT PROCESSING WASTEWATER
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Caatinga |
Texto Completo: | https://periodicos.ufersa.edu.br/caatinga/article/view/4159 |
Resumo: | The objective of this work was to develop empirical models for hydraulic performance of drippers operating with cashew nut processing wastewater depending on operating time, operating pressure and effluent quality. The experiment consisted of two factors, types of drippers (D1=1.65 L h-1, D2=2.00 L h-1 and D3=4.00 L h-1), and operating pressures (70, 140, 210 and 280 kPa), with three replications. The flow variation coefficient (FVC), distribution uniformity coefficient (DUC) and the physicochemical and biological characteristics of the effluent were evaluated every 20 hours until complete 160 hours of operation. Data were interpreted through simple and multiple linear stepwise regression models. The regression models that fitted to the FVC and DUC as a function of operating time were square root, linear and quadratic, with 17%, 17% and 8%, and 17%, 17% and 0%, respectively. The regression models that fitted to the FVC and DUC as a function of operating pressures were square root, linear and quadratic, with 11%, 22% and 0% and the 0%, 22% and 11%, respectively. Multiple linear regressions showed that the dissolved solids content is the main wastewater characteristic that interfere in the FVC and DUC values of the drip units D1 (1.65 L h-1) and D3 (4.00 L h-1), operating at work pressure of 70 kPa (P1). |
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EMPIRICAL MODELS FOR PERFORMANCE OF DRIPPERS APPLYING CASHEW NUT PROCESSING WASTEWATERMODELOS EMPÍRICOS DO DESEMPENHO DE GOTEJADORES APLICANDO ÁGUA RESIDUÁRIA DA CASTANHA DE CAJUEffluent. Emitters. Operating pressure. Flow variation coefficient. Distribution uniformity coefficient.Efluente. Emissores. Pressão de serviço. Coeficientes de variação da vazão e de uniformidade de distribuição.The objective of this work was to develop empirical models for hydraulic performance of drippers operating with cashew nut processing wastewater depending on operating time, operating pressure and effluent quality. The experiment consisted of two factors, types of drippers (D1=1.65 L h-1, D2=2.00 L h-1 and D3=4.00 L h-1), and operating pressures (70, 140, 210 and 280 kPa), with three replications. The flow variation coefficient (FVC), distribution uniformity coefficient (DUC) and the physicochemical and biological characteristics of the effluent were evaluated every 20 hours until complete 160 hours of operation. Data were interpreted through simple and multiple linear stepwise regression models. The regression models that fitted to the FVC and DUC as a function of operating time were square root, linear and quadratic, with 17%, 17% and 8%, and 17%, 17% and 0%, respectively. The regression models that fitted to the FVC and DUC as a function of operating pressures were square root, linear and quadratic, with 11%, 22% and 0% and the 0%, 22% and 11%, respectively. Multiple linear regressions showed that the dissolved solids content is the main wastewater characteristic that interfere in the FVC and DUC values of the drip units D1 (1.65 L h-1) and D3 (4.00 L h-1), operating at work pressure of 70 kPa (P1).Este trabalho objetivou obter modelos empíricos do desempenho hidráulico de gotejadores operando com água residuária da castanha de caju em função do tempo de operação, da pressão de serviço e da qualidade do efluente. O experimento foi montado com dois fatores: três tipos de gotejadores (D1 - 1,65 L h-1; D2 - 2,00 L h-1 e D3 - 4,00 L h-1) e quatro pressões de serviço (70, 140, 210 e 280 kPa), com três repetições. Avaliaram-se a cada 20 h os valores dos coeficientes de variação de vazão (FVC) e da uniformidade de distribuição (DUC), além das características físico-químicas e biológicas do efluente até completar o tempo de operação de 160 h. Os dados foram interpretados por meio das análises de regressão simples e linear múltipla stepwise. Para os dados de FVC e DUC em função do tempo de operação, 17, 17 e 8% e 17, 17 e 0% dos modelos de regressão ajustados foram o raiz quadrada, o linear e o quadrático, respectivamente. Na relação de FVC e DUC com pressões de serviço, 11, 22 e 0% e 0, 22 e 11% dos modelos de regressão ajustados foram o raiz quadrada, o linear e o quadrático, respectivamente. As regressões lineares múltiplas mostraram que o teor de sólidos dissolvidos foi a característica da água residuária que mais interferiu nos valores de FVC e DUC das unidades gotejadoras D1e D3 operando na pressão de serviço de 70 kPa.Universidade Federal Rural do Semi-Árido2016-05-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufersa.edu.br/caatinga/article/view/415910.1590/1983-21252016v29n217rcREVISTA CAATINGA; Vol. 29 No. 2 (2016); 405-414Revista Caatinga; v. 29 n. 2 (2016); 405-4141983-21250100-316Xreponame:Revista Caatingainstname:Universidade Federal Rural do Semi-Árido (UFERSA)instacron:UFERSAenghttps://periodicos.ufersa.edu.br/caatinga/article/view/4159/pdf_376Copyright (c) 2023 Revista Caatingainfo:eu-repo/semantics/openAccessSilva, Ketson Bruno daBatista, Rafael OliveiraMesquita, Francisco de OliveiraCoelho, Daniela da Costa LeiteSantos, Wesley de Oliveira2023-07-19T14:00:14Zoai:ojs.periodicos.ufersa.edu.br:article/4159Revistahttps://periodicos.ufersa.edu.br/index.php/caatinga/indexPUBhttps://periodicos.ufersa.edu.br/index.php/caatinga/oaipatricio@ufersa.edu.br|| caatinga@ufersa.edu.br1983-21250100-316Xopendoar:2024-04-29T09:46:13.223964Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA)true |
dc.title.none.fl_str_mv |
EMPIRICAL MODELS FOR PERFORMANCE OF DRIPPERS APPLYING CASHEW NUT PROCESSING WASTEWATER MODELOS EMPÍRICOS DO DESEMPENHO DE GOTEJADORES APLICANDO ÁGUA RESIDUÁRIA DA CASTANHA DE CAJU |
title |
EMPIRICAL MODELS FOR PERFORMANCE OF DRIPPERS APPLYING CASHEW NUT PROCESSING WASTEWATER |
spellingShingle |
EMPIRICAL MODELS FOR PERFORMANCE OF DRIPPERS APPLYING CASHEW NUT PROCESSING WASTEWATER Silva, Ketson Bruno da Effluent. Emitters. Operating pressure. Flow variation coefficient. Distribution uniformity coefficient. Efluente. Emissores. Pressão de serviço. Coeficientes de variação da vazão e de uniformidade de distribuição. |
title_short |
EMPIRICAL MODELS FOR PERFORMANCE OF DRIPPERS APPLYING CASHEW NUT PROCESSING WASTEWATER |
title_full |
EMPIRICAL MODELS FOR PERFORMANCE OF DRIPPERS APPLYING CASHEW NUT PROCESSING WASTEWATER |
title_fullStr |
EMPIRICAL MODELS FOR PERFORMANCE OF DRIPPERS APPLYING CASHEW NUT PROCESSING WASTEWATER |
title_full_unstemmed |
EMPIRICAL MODELS FOR PERFORMANCE OF DRIPPERS APPLYING CASHEW NUT PROCESSING WASTEWATER |
title_sort |
EMPIRICAL MODELS FOR PERFORMANCE OF DRIPPERS APPLYING CASHEW NUT PROCESSING WASTEWATER |
author |
Silva, Ketson Bruno da |
author_facet |
Silva, Ketson Bruno da Batista, Rafael Oliveira Mesquita, Francisco de Oliveira Coelho, Daniela da Costa Leite Santos, Wesley de Oliveira |
author_role |
author |
author2 |
Batista, Rafael Oliveira Mesquita, Francisco de Oliveira Coelho, Daniela da Costa Leite Santos, Wesley de Oliveira |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Silva, Ketson Bruno da Batista, Rafael Oliveira Mesquita, Francisco de Oliveira Coelho, Daniela da Costa Leite Santos, Wesley de Oliveira |
dc.subject.por.fl_str_mv |
Effluent. Emitters. Operating pressure. Flow variation coefficient. Distribution uniformity coefficient. Efluente. Emissores. Pressão de serviço. Coeficientes de variação da vazão e de uniformidade de distribuição. |
topic |
Effluent. Emitters. Operating pressure. Flow variation coefficient. Distribution uniformity coefficient. Efluente. Emissores. Pressão de serviço. Coeficientes de variação da vazão e de uniformidade de distribuição. |
description |
The objective of this work was to develop empirical models for hydraulic performance of drippers operating with cashew nut processing wastewater depending on operating time, operating pressure and effluent quality. The experiment consisted of two factors, types of drippers (D1=1.65 L h-1, D2=2.00 L h-1 and D3=4.00 L h-1), and operating pressures (70, 140, 210 and 280 kPa), with three replications. The flow variation coefficient (FVC), distribution uniformity coefficient (DUC) and the physicochemical and biological characteristics of the effluent were evaluated every 20 hours until complete 160 hours of operation. Data were interpreted through simple and multiple linear stepwise regression models. The regression models that fitted to the FVC and DUC as a function of operating time were square root, linear and quadratic, with 17%, 17% and 8%, and 17%, 17% and 0%, respectively. The regression models that fitted to the FVC and DUC as a function of operating pressures were square root, linear and quadratic, with 11%, 22% and 0% and the 0%, 22% and 11%, respectively. Multiple linear regressions showed that the dissolved solids content is the main wastewater characteristic that interfere in the FVC and DUC values of the drip units D1 (1.65 L h-1) and D3 (4.00 L h-1), operating at work pressure of 70 kPa (P1). |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-05-03 |
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://periodicos.ufersa.edu.br/caatinga/article/view/4159 10.1590/1983-21252016v29n217rc |
url |
https://periodicos.ufersa.edu.br/caatinga/article/view/4159 |
identifier_str_mv |
10.1590/1983-21252016v29n217rc |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://periodicos.ufersa.edu.br/caatinga/article/view/4159/pdf_376 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2023 Revista Caatinga info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2023 Revista Caatinga |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal Rural do Semi-Árido |
publisher.none.fl_str_mv |
Universidade Federal Rural do Semi-Árido |
dc.source.none.fl_str_mv |
REVISTA CAATINGA; Vol. 29 No. 2 (2016); 405-414 Revista Caatinga; v. 29 n. 2 (2016); 405-414 1983-2125 0100-316X reponame:Revista Caatinga instname:Universidade Federal Rural do Semi-Árido (UFERSA) instacron:UFERSA |
instname_str |
Universidade Federal Rural do Semi-Árido (UFERSA) |
instacron_str |
UFERSA |
institution |
UFERSA |
reponame_str |
Revista Caatinga |
collection |
Revista Caatinga |
repository.name.fl_str_mv |
Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA) |
repository.mail.fl_str_mv |
patricio@ufersa.edu.br|| caatinga@ufersa.edu.br |
_version_ |
1797674025008234496 |