Calcium-free and low-calcium water production for aquaculture research - doi: 10.4025/actascianimsci.v33i1.10686

Detalhes bibliográficos
Autor(a) principal: Pinheiro, Paloma Damasceno
Data de Publicação: 2011
Outros Autores: Cavalcante, Davi de Holanda, Moraes, Manuella Gazzineo de, Sá, Marcelo Vinícius do Carmo e
Tipo de documento: Artigo
Idioma: eng
por
Título da fonte: Acta Scientiarum. Animal Sciences (Online)
Texto Completo: https://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/10686
Resumo: The present work aimed to obtain a mathematical expression to calculate the amount of EDTA required to produce calcium-free and low-calcium water ([Ca2+] < 5 mg L-1). Initially, a pilot test was carried out to confirm the effectiveness of EDTA as a chelating agent of waterborne calcium and to evaluate its effect on water pH. Five application rates of Na-EDTA (25, 50, 75, 100 and 125 mg L-1) were tested. The concentration of calcium in water was determined initially (before the application of EDTA) and after one hour. Linear regression analysis was performed to find out the relationship between the desired calcium concentration in water and the required EDTA: initial calcium hardness ratio. The expression ŷ = -0.0911x + 3.3628 (R² = 0.933) was derived from the linear regression analysis carried out, in which x represents the desired calcium concentration in water and y the required EDTA: initial calcium hardness ratio.
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spelling Calcium-free and low-calcium water production for aquaculture research - doi: 10.4025/actascianimsci.v33i1.10686Calcium-free and low-calcium water production for aquaculture research - doi: 10.4025/actascianimsci.v33i1.10686EDTAcalcium hardnessfish cultureEDTAcalcium hardnessfish cultureThe present work aimed to obtain a mathematical expression to calculate the amount of EDTA required to produce calcium-free and low-calcium water ([Ca2+] < 5 mg L-1). Initially, a pilot test was carried out to confirm the effectiveness of EDTA as a chelating agent of waterborne calcium and to evaluate its effect on water pH. Five application rates of Na-EDTA (25, 50, 75, 100 and 125 mg L-1) were tested. The concentration of calcium in water was determined initially (before the application of EDTA) and after one hour. Linear regression analysis was performed to find out the relationship between the desired calcium concentration in water and the required EDTA: initial calcium hardness ratio. The expression ŷ = -0.0911x + 3.3628 (R² = 0.933) was derived from the linear regression analysis carried out, in which x represents the desired calcium concentration in water and y the required EDTA: initial calcium hardness ratio.The present work aimed to obtain a mathematical expression to calculate the amount of EDTA required to produce calcium-free and low-calcium water ([Ca2+] < 5 mg L-1). Initially, a pilot test was carried out to confirm the effectiveness of EDTA as a chelating agent of waterborne calcium and to evaluate its effect on water pH. Five application rates of Na-EDTA (25, 50, 75, 100 and 125 mg L-1) were tested. The concentration of calcium in water was determined initially (before the application of EDTA) and after one hour. Linear regression analysis was performed to find out the relationship between the desired calcium concentration in water and the required EDTA: initial calcium hardness ratio. The expression ŷ = -0.0911x + 3.3628 (R² = 0.933) was derived from the linear regression analysis carried out, in which x represents the desired calcium concentration in water and y the required EDTA: initial calcium hardness ratio.Editora da Universidade Estadual de Maringá2011-02-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/1068610.4025/actascianimsci.v33i1.10686Acta Scientiarum. Animal Sciences; Vol 33 No 1 (2011); 47-49Acta Scientiarum. Animal Sciences; v. 33 n. 1 (2011); 47-491807-86721806-2636reponame:Acta Scientiarum. Animal Sciences (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMengporhttps://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/10686/10686Ahttps://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/10686/10686Pinheiro, Paloma DamascenoCavalcante, Davi de HolandaMoraes, Manuella Gazzineo deSá, Marcelo Vinícius do Carmo einfo:eu-repo/semantics/openAccess2024-05-17T13:04:21Zoai:periodicos.uem.br/ojs:article/10686Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciAnimSciPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAnimSci/oaiactaanim@uem.br||actaanim@uem.br|| rev.acta@gmail.com1807-86721806-2636opendoar:2024-05-17T13:04:21Acta Scientiarum. Animal Sciences (Online) - Universidade Estadual de Maringá (UEM)false
dc.title.none.fl_str_mv Calcium-free and low-calcium water production for aquaculture research - doi: 10.4025/actascianimsci.v33i1.10686
Calcium-free and low-calcium water production for aquaculture research - doi: 10.4025/actascianimsci.v33i1.10686
title Calcium-free and low-calcium water production for aquaculture research - doi: 10.4025/actascianimsci.v33i1.10686
spellingShingle Calcium-free and low-calcium water production for aquaculture research - doi: 10.4025/actascianimsci.v33i1.10686
Pinheiro, Paloma Damasceno
EDTA
calcium hardness
fish culture
EDTA
calcium hardness
fish culture
title_short Calcium-free and low-calcium water production for aquaculture research - doi: 10.4025/actascianimsci.v33i1.10686
title_full Calcium-free and low-calcium water production for aquaculture research - doi: 10.4025/actascianimsci.v33i1.10686
title_fullStr Calcium-free and low-calcium water production for aquaculture research - doi: 10.4025/actascianimsci.v33i1.10686
title_full_unstemmed Calcium-free and low-calcium water production for aquaculture research - doi: 10.4025/actascianimsci.v33i1.10686
title_sort Calcium-free and low-calcium water production for aquaculture research - doi: 10.4025/actascianimsci.v33i1.10686
author Pinheiro, Paloma Damasceno
author_facet Pinheiro, Paloma Damasceno
Cavalcante, Davi de Holanda
Moraes, Manuella Gazzineo de
Sá, Marcelo Vinícius do Carmo e
author_role author
author2 Cavalcante, Davi de Holanda
Moraes, Manuella Gazzineo de
Sá, Marcelo Vinícius do Carmo e
author2_role author
author
author
dc.contributor.author.fl_str_mv Pinheiro, Paloma Damasceno
Cavalcante, Davi de Holanda
Moraes, Manuella Gazzineo de
Sá, Marcelo Vinícius do Carmo e
dc.subject.por.fl_str_mv EDTA
calcium hardness
fish culture
EDTA
calcium hardness
fish culture
topic EDTA
calcium hardness
fish culture
EDTA
calcium hardness
fish culture
description The present work aimed to obtain a mathematical expression to calculate the amount of EDTA required to produce calcium-free and low-calcium water ([Ca2+] < 5 mg L-1). Initially, a pilot test was carried out to confirm the effectiveness of EDTA as a chelating agent of waterborne calcium and to evaluate its effect on water pH. Five application rates of Na-EDTA (25, 50, 75, 100 and 125 mg L-1) were tested. The concentration of calcium in water was determined initially (before the application of EDTA) and after one hour. Linear regression analysis was performed to find out the relationship between the desired calcium concentration in water and the required EDTA: initial calcium hardness ratio. The expression ŷ = -0.0911x + 3.3628 (R² = 0.933) was derived from the linear regression analysis carried out, in which x represents the desired calcium concentration in water and y the required EDTA: initial calcium hardness ratio.
publishDate 2011
dc.date.none.fl_str_mv 2011-02-02
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.uem.br/ojs/index.php/ActaSciAnimSci/article/view/10686
10.4025/actascianimsci.v33i1.10686
url https://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/10686
identifier_str_mv 10.4025/actascianimsci.v33i1.10686
dc.language.iso.fl_str_mv eng
por
language eng
por
dc.relation.none.fl_str_mv https://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/10686/10686A
https://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/10686/10686
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Editora da Universidade Estadual de Maringá
publisher.none.fl_str_mv Editora da Universidade Estadual de Maringá
dc.source.none.fl_str_mv Acta Scientiarum. Animal Sciences; Vol 33 No 1 (2011); 47-49
Acta Scientiarum. Animal Sciences; v. 33 n. 1 (2011); 47-49
1807-8672
1806-2636
reponame:Acta Scientiarum. Animal Sciences (Online)
instname:Universidade Estadual de Maringá (UEM)
instacron:UEM
instname_str Universidade Estadual de Maringá (UEM)
instacron_str UEM
institution UEM
reponame_str Acta Scientiarum. Animal Sciences (Online)
collection Acta Scientiarum. Animal Sciences (Online)
repository.name.fl_str_mv Acta Scientiarum. Animal Sciences (Online) - Universidade Estadual de Maringá (UEM)
repository.mail.fl_str_mv actaanim@uem.br||actaanim@uem.br|| rev.acta@gmail.com
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