Use of Central Composite Design for Optimization of ultrasonic pre-treatment parameters on chemical deinking of old newspaper

To reuse recycled cellulosic fibers in paper production, contaminated particles and other impurities of the fibers can be greatly removed using a de-inking stage which is considered as a supplementary step in waste paper recycling technology. The effect of using ultrasonic pretreatment on the deinki...

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Autores principales:	Seyed Hassan Sharifi, nouredin Nazarnezhad
Formato:	article
Lenguaje:	FA
Publicado:	Regional Information Center for Science and Technology (RICeST) 2019
Materias:	Old newspaper Deinking Ultrasonic Optical and mechanical properties Central composite design Forestry SD1-669.5
Acceso en línea:	https://doaj.org/article/6017ab32fad14f10bc622ef83f573829
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spelling	oai:doaj.org-article:6017ab32fad14f10bc622ef83f5738292021-12-02T07:18:52ZUse of Central Composite Design for Optimization of ultrasonic pre-treatment parameters on chemical deinking of old newspaper1735-09132383-112X10.22092/ijwpr.2018.122366.1480https://doaj.org/article/6017ab32fad14f10bc622ef83f5738292019-01-01T00:00:00Zhttp://ijwpr.areeo.ac.ir/article_117555_8191378371897f2b42f21ccb667e1e87.pdfhttps://doaj.org/toc/1735-0913https://doaj.org/toc/2383-112XTo reuse recycled cellulosic fibers in paper production, contaminated particles and other impurities of the fibers can be greatly removed using a de-inking stage which is considered as a supplementary step in waste paper recycling technology. The effect of using ultrasonic pretreatment on the deinking of old newspapers was investigated utilizing the common conventional chemical method across this research work. Experimental design method was served to optimize the amount of ultrasonic bath temperature and sonication time. Therefore, 13 tests were designed using Response Surface Methodology (RSM) and Central Composite Design with Design Expert 7.0.0 Trial software. Ultrasonic bath temperature and sonication time at three different levels (1, 0 and 1+) and two axial points (α + and α-) were used as independent variables, and the optical and mechanical properties of handsheets were used as dependent variables. Response surfaces and contour plots were served to show the interaction between the independent variables and the response variable. ANOVA test showed that the quadratic model is the best model to explain the interaction among the studied variables. The predicted values of the obtained model had much conformity with the experimental results (R2=0.98). According to ANOVA results, it can be concluded that the effect of each of the variables on the optimal properties is significant and the ultrasonic time is the most effective factor on the response. According to the results, the proposed optimum conditions to achieve the highest amount of mechanical and optical properties (43.43) are the ultrasonic bath temperature 47 oC and the ultrasonic time of 31 min.Seyed Hassan Sharifinouredin NazarnezhadRegional Information Center for Science and Technology (RICeST)articleOld newspaperDeinkingUltrasonicOptical and mechanical propertiesCentral composite designForestrySD1-669.5FAتحقیقات علوم چوب و کاغذ ایران, Vol 33, Iss 4, Pp 489-500 (2019)
institution	DOAJ
collection	DOAJ
language	FA
topic	Old newspaper Deinking Ultrasonic Optical and mechanical properties Central composite design Forestry SD1-669.5
spellingShingle	Old newspaper Deinking Ultrasonic Optical and mechanical properties Central composite design Forestry SD1-669.5 Seyed Hassan Sharifi nouredin Nazarnezhad Use of Central Composite Design for Optimization of ultrasonic pre-treatment parameters on chemical deinking of old newspaper
description	To reuse recycled cellulosic fibers in paper production, contaminated particles and other impurities of the fibers can be greatly removed using a de-inking stage which is considered as a supplementary step in waste paper recycling technology. The effect of using ultrasonic pretreatment on the deinking of old newspapers was investigated utilizing the common conventional chemical method across this research work. Experimental design method was served to optimize the amount of ultrasonic bath temperature and sonication time. Therefore, 13 tests were designed using Response Surface Methodology (RSM) and Central Composite Design with Design Expert 7.0.0 Trial software. Ultrasonic bath temperature and sonication time at three different levels (1, 0 and 1+) and two axial points (α + and α-) were used as independent variables, and the optical and mechanical properties of handsheets were used as dependent variables. Response surfaces and contour plots were served to show the interaction between the independent variables and the response variable. ANOVA test showed that the quadratic model is the best model to explain the interaction among the studied variables. The predicted values of the obtained model had much conformity with the experimental results (R2=0.98). According to ANOVA results, it can be concluded that the effect of each of the variables on the optimal properties is significant and the ultrasonic time is the most effective factor on the response. According to the results, the proposed optimum conditions to achieve the highest amount of mechanical and optical properties (43.43) are the ultrasonic bath temperature 47 oC and the ultrasonic time of 31 min.
format	article
author	Seyed Hassan Sharifi nouredin Nazarnezhad
author_facet	Seyed Hassan Sharifi nouredin Nazarnezhad
author_sort	Seyed Hassan Sharifi
title	Use of Central Composite Design for Optimization of ultrasonic pre-treatment parameters on chemical deinking of old newspaper
title_short	Use of Central Composite Design for Optimization of ultrasonic pre-treatment parameters on chemical deinking of old newspaper
title_full	Use of Central Composite Design for Optimization of ultrasonic pre-treatment parameters on chemical deinking of old newspaper
title_fullStr	Use of Central Composite Design for Optimization of ultrasonic pre-treatment parameters on chemical deinking of old newspaper
title_full_unstemmed	Use of Central Composite Design for Optimization of ultrasonic pre-treatment parameters on chemical deinking of old newspaper
title_sort	use of central composite design for optimization of ultrasonic pre-treatment parameters on chemical deinking of old newspaper
publisher	Regional Information Center for Science and Technology (RICeST)
publishDate	2019
url	https://doaj.org/article/6017ab32fad14f10bc622ef83f573829
work_keys_str_mv	AT seyedhassansharifi useofcentralcompositedesignforoptimizationofultrasonicpretreatmentparametersonchemicaldeinkingofoldnewspaper AT nouredinnazarnezhad useofcentralcompositedesignforoptimizationofultrasonicpretreatmentparametersonchemicaldeinkingofoldnewspaper
_version_	1718399516994961408

Use of Central Composite Design for Optimization of ultrasonic pre-treatment parameters on chemical deinking of old newspaper

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