Differential evolution-based optimization of corn stalks black liquor decolorization using active carbon and TiO2/UV

Abstract In this work, the active carbon adsorption and TiO2/UV decolorization of black liquor were studied through experimental analysis (planned using Design of Experiments), modelling and optimization (with Response Surface Method and Differential Evolution). The aim is to highlight the importanc...

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Autores principales:	Mircea Teodor Nechita, Gabriel Dan Suditu, Adrian Cătălin Puițel, Elena Niculina Drăgoi
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/111879b3ffa344598f336a4bad300a94
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spelling	oai:doaj.org-article:111879b3ffa344598f336a4bad300a942021-12-02T15:33:23ZDifferential evolution-based optimization of corn stalks black liquor decolorization using active carbon and TiO2/UV10.1038/s41598-021-98006-82045-2322https://doaj.org/article/111879b3ffa344598f336a4bad300a942021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-98006-8https://doaj.org/toc/2045-2322Abstract In this work, the active carbon adsorption and TiO2/UV decolorization of black liquor were studied through experimental analysis (planned using Design of Experiments), modelling and optimization (with Response Surface Method and Differential Evolution). The aim is to highlight the importance of optimization methods for increasing process efficiency. For active carbon adsorption, the considered process parameters were: quantity of active carbon, dilution, and contact time. For TiO2 promoted photochemical decolorization the process parameters were: TiO2 concentration, UV path length and irradiation time. The determined models had an R squared of 93.82% for active carbon adsorption and of 92.82% for TiO2/UV decolorization. The optimization of active carbon resulted in an improvement from 83.08% (corresponding to 50 g/L quantity of active carbon, 30 min contact time and 200 dilution) to 100% (corresponding to multiple combinations). The optimization of TiO2/UV decolorization indicated an increase of efficiency from 36.63% (corresponding to 1 g/L TiO2 concentration, 60 min irradiation time and 5 cm UV path length) to 46.83% (corresponding to 0.4 g/L TiO2 concentration, 59.99 min irradiation time and 2.85 cm UV path length). These results show that the experiments and the subsequent standard RSM optimization can be further improved, leading to better performance.Mircea Teodor NechitaGabriel Dan SudituAdrian Cătălin PuițelElena Niculina DrăgoiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Mircea Teodor Nechita Gabriel Dan Suditu Adrian Cătălin Puițel Elena Niculina Drăgoi Differential evolution-based optimization of corn stalks black liquor decolorization using active carbon and TiO2/UV
description	Abstract In this work, the active carbon adsorption and TiO2/UV decolorization of black liquor were studied through experimental analysis (planned using Design of Experiments), modelling and optimization (with Response Surface Method and Differential Evolution). The aim is to highlight the importance of optimization methods for increasing process efficiency. For active carbon adsorption, the considered process parameters were: quantity of active carbon, dilution, and contact time. For TiO2 promoted photochemical decolorization the process parameters were: TiO2 concentration, UV path length and irradiation time. The determined models had an R squared of 93.82% for active carbon adsorption and of 92.82% for TiO2/UV decolorization. The optimization of active carbon resulted in an improvement from 83.08% (corresponding to 50 g/L quantity of active carbon, 30 min contact time and 200 dilution) to 100% (corresponding to multiple combinations). The optimization of TiO2/UV decolorization indicated an increase of efficiency from 36.63% (corresponding to 1 g/L TiO2 concentration, 60 min irradiation time and 5 cm UV path length) to 46.83% (corresponding to 0.4 g/L TiO2 concentration, 59.99 min irradiation time and 2.85 cm UV path length). These results show that the experiments and the subsequent standard RSM optimization can be further improved, leading to better performance.
format	article
author	Mircea Teodor Nechita Gabriel Dan Suditu Adrian Cătălin Puițel Elena Niculina Drăgoi
author_facet	Mircea Teodor Nechita Gabriel Dan Suditu Adrian Cătălin Puițel Elena Niculina Drăgoi
author_sort	Mircea Teodor Nechita
title	Differential evolution-based optimization of corn stalks black liquor decolorization using active carbon and TiO2/UV
title_short	Differential evolution-based optimization of corn stalks black liquor decolorization using active carbon and TiO2/UV
title_full	Differential evolution-based optimization of corn stalks black liquor decolorization using active carbon and TiO2/UV
title_fullStr	Differential evolution-based optimization of corn stalks black liquor decolorization using active carbon and TiO2/UV
title_full_unstemmed	Differential evolution-based optimization of corn stalks black liquor decolorization using active carbon and TiO2/UV
title_sort	differential evolution-based optimization of corn stalks black liquor decolorization using active carbon and tio2/uv
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/111879b3ffa344598f336a4bad300a94
work_keys_str_mv	AT mirceateodornechita differentialevolutionbasedoptimizationofcornstalksblackliquordecolorizationusingactivecarbonandtio2uv AT gabrieldansuditu differentialevolutionbasedoptimizationofcornstalksblackliquordecolorizationusingactivecarbonandtio2uv AT adriancatalinpuitel differentialevolutionbasedoptimizationofcornstalksblackliquordecolorizationusingactivecarbonandtio2uv AT elenaniculinadragoi differentialevolutionbasedoptimizationofcornstalksblackliquordecolorizationusingactivecarbonandtio2uv
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Differential evolution-based optimization of corn stalks black liquor decolorization using active carbon and TiO2/UV

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