Investigation on the physical and mechanical properties of waste newspaper deinked pulp by cellulase enzyme compared to conventional method

In this study, deinking of waste newspaper was investigated by conventional and enzymatic methods. Conventional deinking was done in pulping times of 10, 20 and 30 minutes along with different processes of washing, flotation and combined washing/ flotation. Enzymatic deinking was accomplished at d...

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Autores principales:	Iman Akbarpoor, Hossein Resalati, Ahmad reza Saraeian
Formato:	article
Lenguaje:	FA
Publicado:	Regional Information Center for Science and Technology (RICeST) 2011
Materias:	Deinking waste newspaper cellulase physical properties MECHANICAL PROPERTIES Forestry SD1-669.5
Acceso en línea:	https://doaj.org/article/24c6f5f00d054075a55fdac95e661629
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spelling	oai:doaj.org-article:24c6f5f00d054075a55fdac95e6616292021-12-02T05:07:41ZInvestigation on the physical and mechanical properties of waste newspaper deinked pulp by cellulase enzyme compared to conventional method1735-09132383-112X10.22092/ijwpr.2011.117183https://doaj.org/article/24c6f5f00d054075a55fdac95e6616292011-06-01T00:00:00Zhttp://ijwpr.areeo.ac.ir/article_117183_293132132541754279264527ab8e951c.pdfhttps://doaj.org/toc/1735-0913https://doaj.org/toc/2383-112XIn this study, deinking of waste newspaper was investigated by conventional and enzymatic methods. Conventional deinking was done in pulping times of 10, 20 and 30 minutes along with different processes of washing, flotation and combined washing/ flotation. Enzymatic deinking was accomplished at different charges of 0.025, 0.05, 0.1 and 0.2% cellulase enzyme (based on oven-dried waste paper), pulping times of 10,15 and 20 minutes, pH range of 5-5.5 along with one-stage washing process. Optimum compositions were selected from chemical and enzymatic treatments and then physical and mechanical properties of the paper produced in optimum conditions were compared. Achieved results from comparison of the physical properties of optimum chemical and enzymatic treatments showed that, the paper produced from deinked pulp by conventional method had higher calliper, bulk and porosity. Using of 0.1% cellulase resulted the papers with higher tensile and breaking length compared to chemical treatments. The papers could be produced with similar burst and tear indexes compared to chemical treatments using of 0.1% cellulose, as well.Iman AkbarpoorHossein ResalatiAhmad reza SaraeianRegional Information Center for Science and Technology (RICeST)articleDeinkingwaste newspapercellulasephysical propertiesMECHANICAL PROPERTIESForestrySD1-669.5FAتحقیقات علوم چوب و کاغذ ایران, Vol 26, Iss 2, Pp 243-255 (2011)
institution	DOAJ
collection	DOAJ
language	FA
topic	Deinking waste newspaper cellulase physical properties MECHANICAL PROPERTIES Forestry SD1-669.5
spellingShingle	Deinking waste newspaper cellulase physical properties MECHANICAL PROPERTIES Forestry SD1-669.5 Iman Akbarpoor Hossein Resalati Ahmad reza Saraeian Investigation on the physical and mechanical properties of waste newspaper deinked pulp by cellulase enzyme compared to conventional method
description	In this study, deinking of waste newspaper was investigated by conventional and enzymatic methods. Conventional deinking was done in pulping times of 10, 20 and 30 minutes along with different processes of washing, flotation and combined washing/ flotation. Enzymatic deinking was accomplished at different charges of 0.025, 0.05, 0.1 and 0.2% cellulase enzyme (based on oven-dried waste paper), pulping times of 10,15 and 20 minutes, pH range of 5-5.5 along with one-stage washing process. Optimum compositions were selected from chemical and enzymatic treatments and then physical and mechanical properties of the paper produced in optimum conditions were compared. Achieved results from comparison of the physical properties of optimum chemical and enzymatic treatments showed that, the paper produced from deinked pulp by conventional method had higher calliper, bulk and porosity. Using of 0.1% cellulase resulted the papers with higher tensile and breaking length compared to chemical treatments. The papers could be produced with similar burst and tear indexes compared to chemical treatments using of 0.1% cellulose, as well.
format	article
author	Iman Akbarpoor Hossein Resalati Ahmad reza Saraeian
author_facet	Iman Akbarpoor Hossein Resalati Ahmad reza Saraeian
author_sort	Iman Akbarpoor
title	Investigation on the physical and mechanical properties of waste newspaper deinked pulp by cellulase enzyme compared to conventional method
title_short	Investigation on the physical and mechanical properties of waste newspaper deinked pulp by cellulase enzyme compared to conventional method
title_full	Investigation on the physical and mechanical properties of waste newspaper deinked pulp by cellulase enzyme compared to conventional method
title_fullStr	Investigation on the physical and mechanical properties of waste newspaper deinked pulp by cellulase enzyme compared to conventional method
title_full_unstemmed	Investigation on the physical and mechanical properties of waste newspaper deinked pulp by cellulase enzyme compared to conventional method
title_sort	investigation on the physical and mechanical properties of waste newspaper deinked pulp by cellulase enzyme compared to conventional method
publisher	Regional Information Center for Science and Technology (RICeST)
publishDate	2011
url	https://doaj.org/article/24c6f5f00d054075a55fdac95e661629
work_keys_str_mv	AT imanakbarpoor investigationonthephysicalandmechanicalpropertiesofwastenewspaperdeinkedpulpbycellulaseenzymecomparedtoconventionalmethod AT hosseinresalati investigationonthephysicalandmechanicalpropertiesofwastenewspaperdeinkedpulpbycellulaseenzymecomparedtoconventionalmethod AT ahmadrezasaraeian investigationonthephysicalandmechanicalpropertiesofwastenewspaperdeinkedpulpbycellulaseenzymecomparedtoconventionalmethod
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Investigation on the physical and mechanical properties of waste newspaper deinked pulp by cellulase enzyme compared to conventional method

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