Modelling and optimisation of coagulation of highly concentrated industrial grade leather dye by response surface methodology

High consumption of process water and water scarcity has motivated industry to reuse their wastewater. Membrane processes are vital to produce water for reuse from dyeing baths in the tanning industry. In this regard, synthetic dye was recognised as the major foulant. To minimise the membrane foulin...

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Main Authors:	Khayet M, Abu Zahrim Yaser, N.Hilal
Format:	Article
Language:	English
Published:	Elsevier 2011
Subjects:	TA Engineering (General). Civil engineering (General)
Online Access:	http://eprints.ums.edu.my/20671/ http://eprints.ums.edu.my/20671/ http://eprints.ums.edu.my/20671/1/Modelling%20and%20optimisation%20of%20coagulation%20%20of%20highly%20concentrated%20industrial%20grade%20leather%20dye%20by%20response%20surface%20methodology.pdf

id	ums-20671
recordtype	eprints
spelling	ums-206712018-08-03T02:58:11Z http://eprints.ums.edu.my/20671/ Modelling and optimisation of coagulation of highly concentrated industrial grade leather dye by response surface methodology Khayet M, Abu Zahrim Yaser, N.Hilal, TA Engineering (General). Civil engineering (General) High consumption of process water and water scarcity has motivated industry to reuse their wastewater. Membrane processes are vital to produce water for reuse from dyeing baths in the tanning industry. In this regard, synthetic dye was recognised as the major foulant. To minimise the membrane fouling, coagulation/flocculation process is an important pre-treatment. Due to the complex nature of the process involving dyes-coagulant, the modelling is challenging. In this study, statistical experimental design and response surface methodology, RSM, have been applied to optimize removal of C.I. Acid Black 210 dye from highly concentrated solutions by means of a coagulation/floculation process. Aluminium sulphate was used as the coagulant. Central composite design (CCD) using as input variables the experimental temperature, the concentration of aluminium sulphate and the initial pH of the solution have been considered. Based on the design of experiment the quadratic response surface models have been developed to link the output response, which is the dye removal factor, with the input variables via mathematical relationships. The constructed response model has been tested using the analysis of variance (ANOVA). A Monte Carlo simulation method has been conducted to determine the optimum operating conditions. The obtained optimal point corresponds to a temperature of 40 °C, a concentration of aluminium sulphate of 0.82 g/L and an initial pH value of 5.61. The maximal value of the dye removal obtained under optimal process conditions has been confirmed experimentally. Elsevier 2011 Article PeerReviewed text en http://eprints.ums.edu.my/20671/1/Modelling%20and%20optimisation%20of%20coagulation%20%20of%20highly%20concentrated%20industrial%20grade%20leather%20dye%20by%20response%20surface%20methodology.pdf Khayet M, and Abu Zahrim Yaser, and N.Hilal, (2011) Modelling and optimisation of coagulation of highly concentrated industrial grade leather dye by response surface methodology. Chemical Engineering Journal, 167 (1). pp. 77-83. ISSN 13858947 https://doi.org/10.1016/j.cej.2010.11.108
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Sabah Malaysia
building	UMS Institutional Repository
collection	Online Access
language	English
topic	TA Engineering (General). Civil engineering (General)
spellingShingle	TA Engineering (General). Civil engineering (General) Khayet M, Abu Zahrim Yaser, N.Hilal, Modelling and optimisation of coagulation of highly concentrated industrial grade leather dye by response surface methodology
description	High consumption of process water and water scarcity has motivated industry to reuse their wastewater. Membrane processes are vital to produce water for reuse from dyeing baths in the tanning industry. In this regard, synthetic dye was recognised as the major foulant. To minimise the membrane fouling, coagulation/flocculation process is an important pre-treatment. Due to the complex nature of the process involving dyes-coagulant, the modelling is challenging. In this study, statistical experimental design and response surface methodology, RSM, have been applied to optimize removal of C.I. Acid Black 210 dye from highly concentrated solutions by means of a coagulation/floculation process. Aluminium sulphate was used as the coagulant. Central composite design (CCD) using as input variables the experimental temperature, the concentration of aluminium sulphate and the initial pH of the solution have been considered. Based on the design of experiment the quadratic response surface models have been developed to link the output response, which is the dye removal factor, with the input variables via mathematical relationships. The constructed response model has been tested using the analysis of variance (ANOVA). A Monte Carlo simulation method has been conducted to determine the optimum operating conditions. The obtained optimal point corresponds to a temperature of 40 °C, a concentration of aluminium sulphate of 0.82 g/L and an initial pH value of 5.61. The maximal value of the dye removal obtained under optimal process conditions has been confirmed experimentally.
format	Article
author	Khayet M, Abu Zahrim Yaser, N.Hilal,
author_facet	Khayet M, Abu Zahrim Yaser, N.Hilal,
author_sort	Khayet M,
title	Modelling and optimisation of coagulation of highly concentrated industrial grade leather dye by response surface methodology
title_short	Modelling and optimisation of coagulation of highly concentrated industrial grade leather dye by response surface methodology
title_full	Modelling and optimisation of coagulation of highly concentrated industrial grade leather dye by response surface methodology
title_fullStr	Modelling and optimisation of coagulation of highly concentrated industrial grade leather dye by response surface methodology
title_full_unstemmed	Modelling and optimisation of coagulation of highly concentrated industrial grade leather dye by response surface methodology
title_sort	modelling and optimisation of coagulation of highly concentrated industrial grade leather dye by response surface methodology
publisher	Elsevier
publishDate	2011
url	http://eprints.ums.edu.my/20671/ http://eprints.ums.edu.my/20671/ http://eprints.ums.edu.my/20671/1/Modelling%20and%20optimisation%20of%20coagulation%20%20of%20highly%20concentrated%20industrial%20grade%20leather%20dye%20by%20response%20surface%20methodology.pdf
first_indexed	2018-09-05T09:45:37Z
last_indexed	2018-09-05T09:45:37Z
_version_	1610760309907128320

Modelling and optimisation of coagulation of highly concentrated industrial grade leather dye by response surface methodology

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