Enzymatic Versus Chemical Deinking of Old Newspaper

In this study, Deinking of old newspaper was investigated by chemical and enzymatic methods. Chemical treatment was done using chemicals at different times of 10, 20 and 30 minutes, consistency of 10%, temperature of 50±1!C along with washing, flotation and combination of washing/flotation. While, E...

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Autores principales:	Iman Akbarpoor, Hossein Resalti, Ahmad reza Saraeyan
Formato:	article
Lenguaje:	FA
Publicado:	Regional Information Center for Science and Technology (RICeST) 2010
Materias:	Deinking Old newspaper Cellulase Enzyme Optical properties physical properties Forestry SD1-669.5
Acceso en línea:	https://doaj.org/article/4ee7d51391154e81bc94a3c390456b98
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spelling	oai:doaj.org-article:4ee7d51391154e81bc94a3c390456b982021-12-02T04:47:40ZEnzymatic Versus Chemical Deinking of Old Newspaper1735-09132383-112X10.22092/ijwpr.2010.117292https://doaj.org/article/4ee7d51391154e81bc94a3c390456b982010-09-01T00:00:00Zhttp://ijwpr.areeo.ac.ir/article_117292_02b4b3a1da81bdd512364f299647ab96.pdfhttps://doaj.org/toc/1735-0913https://doaj.org/toc/2383-112XIn this study, Deinking of old newspaper was investigated by chemical and enzymatic methods. Chemical treatment was done using chemicals at different times of 10, 20 and 30 minutes, consistency of 10%, temperature of 50±1!C along with washing, flotation and combination of washing/flotation. While, Enzymatic treatment was accomplished at different concentrations of 0.025, 0.05, 0.1 and 0.2% of cellulase enzyme (on the basis of oven dried waste paper), pH range of 5-5.5, different times of 10,15 and 20 minutes, consistency of 10%, temperature of 50±1!C along with washing. The results comparison of optimum chemical and enzymatic treatments showed that, deinked pulp by chemical method had higher brightness and yellowness. Also, deinked pulp by chemical method resulted the papers with higher bulk, higher caliper and higher air resistance.Iman AkbarpoorHossein ResaltiAhmad reza SaraeyanRegional Information Center for Science and Technology (RICeST)articleDeinkingOld newspaperCellulase EnzymeOptical propertiesphysical propertiesForestrySD1-669.5FAتحقیقات علوم چوب و کاغذ ایران, Vol 25, Iss 2, Pp 223-233 (2010)
institution	DOAJ
collection	DOAJ
language	FA
topic	Deinking Old newspaper Cellulase Enzyme Optical properties physical properties Forestry SD1-669.5
spellingShingle	Deinking Old newspaper Cellulase Enzyme Optical properties physical properties Forestry SD1-669.5 Iman Akbarpoor Hossein Resalti Ahmad reza Saraeyan Enzymatic Versus Chemical Deinking of Old Newspaper
description	In this study, Deinking of old newspaper was investigated by chemical and enzymatic methods. Chemical treatment was done using chemicals at different times of 10, 20 and 30 minutes, consistency of 10%, temperature of 50±1!C along with washing, flotation and combination of washing/flotation. While, Enzymatic treatment was accomplished at different concentrations of 0.025, 0.05, 0.1 and 0.2% of cellulase enzyme (on the basis of oven dried waste paper), pH range of 5-5.5, different times of 10,15 and 20 minutes, consistency of 10%, temperature of 50±1!C along with washing. The results comparison of optimum chemical and enzymatic treatments showed that, deinked pulp by chemical method had higher brightness and yellowness. Also, deinked pulp by chemical method resulted the papers with higher bulk, higher caliper and higher air resistance.
format	article
author	Iman Akbarpoor Hossein Resalti Ahmad reza Saraeyan
author_facet	Iman Akbarpoor Hossein Resalti Ahmad reza Saraeyan
author_sort	Iman Akbarpoor
title	Enzymatic Versus Chemical Deinking of Old Newspaper
title_short	Enzymatic Versus Chemical Deinking of Old Newspaper
title_full	Enzymatic Versus Chemical Deinking of Old Newspaper
title_fullStr	Enzymatic Versus Chemical Deinking of Old Newspaper
title_full_unstemmed	Enzymatic Versus Chemical Deinking of Old Newspaper
title_sort	enzymatic versus chemical deinking of old newspaper
publisher	Regional Information Center for Science and Technology (RICeST)
publishDate	2010
url	https://doaj.org/article/4ee7d51391154e81bc94a3c390456b98
work_keys_str_mv	AT imanakbarpoor enzymaticversuschemicaldeinkingofoldnewspaper AT hosseinresalti enzymaticversuschemicaldeinkingofoldnewspaper AT ahmadrezasaraeyan enzymaticversuschemicaldeinkingofoldnewspaper
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Enzymatic Versus Chemical Deinking of Old Newspaper

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