Adsorptive decontamination of paper mill effluent by nano fly ash: response surface methodology, adsorption isotherm and reusability studies

In the present study, adsorption of colour and other pollutants from agro-based paper mill effluent onto fabricated coal fly ash nanoparticles (CFA-N) have been investigated. Response surface methodology was applied to evaluate the operational conditions for maximum ouster of colour from effluent by...

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Autores principales:	Divya Bisht, Surbhi Sinha, Sonal Nigam, Kavya Bisaria, Tithi Mehrotra, Rachana Singh
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	adsorption isotherm bbd design model colour removal column adsorption study nano fly ash pulp and paper mill effluent Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/efa978fb3e074dac8e27887249ddb064
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spelling	oai:doaj.org-article:efa978fb3e074dac8e27887249ddb0642021-11-06T10:54:19ZAdsorptive decontamination of paper mill effluent by nano fly ash: response surface methodology, adsorption isotherm and reusability studies0273-12231996-973210.2166/wst.2021.066https://doaj.org/article/efa978fb3e074dac8e27887249ddb0642021-04-01T00:00:00Zhttp://wst.iwaponline.com/content/83/7/1662https://doaj.org/toc/0273-1223https://doaj.org/toc/1996-9732In the present study, adsorption of colour and other pollutants from agro-based paper mill effluent onto fabricated coal fly ash nanoparticles (CFA-N) have been investigated. Response surface methodology was applied to evaluate the operational conditions for maximum ouster of colour from effluent by nano structured CFA-N. Maximum reduction in colour (92.45%) and other pollutants were obtained at optimum conditions: 60 min interaction time, 60 g/L adsorbent dosage and 80 rpm agitation rate. The regression coefficient values (adjusted R2 = 0.7169; predicted R2 = 0.7539) established harmony between predicted and the experimental data. The adsorption equilibrium results matched perfectly with both Langmuir and Freundlich isotherms with maximum adsorption capacity of 250 platinum–cobalt/g. Additionally, the efficacy of CFA-N was also assessed in a continuous column mode. Furthermore, the feasibility of treated effluent for irrigation purpose was checked by growing the plant Solanum lycopersicum. Overall, the findings demonstrated the outstanding role of inexpensive and abundantly available CFA-N in treatment of paper mill effluent to the required compliance levels. HIGHLIGHTS Nano fly ash was successfully utilized for removal of colour and other pollutants from agro-based paper mill effluent.; RSM using BBD was used to optimize the operational conditions.; Quadratic models have been established for the response variables.; Fixed-bed column adsorption studies illustrated the feasibility of nano fly ash for pilot-scale applications.; The reusability of treated effluent for irrigation was examined.;Divya BishtSurbhi SinhaSonal NigamKavya BisariaTithi MehrotraRachana SinghIWA Publishingarticleadsorption isothermbbd design modelcolour removalcolumn adsorption studynano fly ashpulp and paper mill effluentEnvironmental technology. Sanitary engineeringTD1-1066ENWater Science and Technology, Vol 83, Iss 7, Pp 1662-1676 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	adsorption isotherm bbd design model colour removal column adsorption study nano fly ash pulp and paper mill effluent Environmental technology. Sanitary engineering TD1-1066
spellingShingle	adsorption isotherm bbd design model colour removal column adsorption study nano fly ash pulp and paper mill effluent Environmental technology. Sanitary engineering TD1-1066 Divya Bisht Surbhi Sinha Sonal Nigam Kavya Bisaria Tithi Mehrotra Rachana Singh Adsorptive decontamination of paper mill effluent by nano fly ash: response surface methodology, adsorption isotherm and reusability studies
description	In the present study, adsorption of colour and other pollutants from agro-based paper mill effluent onto fabricated coal fly ash nanoparticles (CFA-N) have been investigated. Response surface methodology was applied to evaluate the operational conditions for maximum ouster of colour from effluent by nano structured CFA-N. Maximum reduction in colour (92.45%) and other pollutants were obtained at optimum conditions: 60 min interaction time, 60 g/L adsorbent dosage and 80 rpm agitation rate. The regression coefficient values (adjusted R2 = 0.7169; predicted R2 = 0.7539) established harmony between predicted and the experimental data. The adsorption equilibrium results matched perfectly with both Langmuir and Freundlich isotherms with maximum adsorption capacity of 250 platinum–cobalt/g. Additionally, the efficacy of CFA-N was also assessed in a continuous column mode. Furthermore, the feasibility of treated effluent for irrigation purpose was checked by growing the plant Solanum lycopersicum. Overall, the findings demonstrated the outstanding role of inexpensive and abundantly available CFA-N in treatment of paper mill effluent to the required compliance levels. HIGHLIGHTS Nano fly ash was successfully utilized for removal of colour and other pollutants from agro-based paper mill effluent.; RSM using BBD was used to optimize the operational conditions.; Quadratic models have been established for the response variables.; Fixed-bed column adsorption studies illustrated the feasibility of nano fly ash for pilot-scale applications.; The reusability of treated effluent for irrigation was examined.;
format	article
author	Divya Bisht Surbhi Sinha Sonal Nigam Kavya Bisaria Tithi Mehrotra Rachana Singh
author_facet	Divya Bisht Surbhi Sinha Sonal Nigam Kavya Bisaria Tithi Mehrotra Rachana Singh
author_sort	Divya Bisht
title	Adsorptive decontamination of paper mill effluent by nano fly ash: response surface methodology, adsorption isotherm and reusability studies
title_short	Adsorptive decontamination of paper mill effluent by nano fly ash: response surface methodology, adsorption isotherm and reusability studies
title_full	Adsorptive decontamination of paper mill effluent by nano fly ash: response surface methodology, adsorption isotherm and reusability studies
title_fullStr	Adsorptive decontamination of paper mill effluent by nano fly ash: response surface methodology, adsorption isotherm and reusability studies
title_full_unstemmed	Adsorptive decontamination of paper mill effluent by nano fly ash: response surface methodology, adsorption isotherm and reusability studies
title_sort	adsorptive decontamination of paper mill effluent by nano fly ash: response surface methodology, adsorption isotherm and reusability studies
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/efa978fb3e074dac8e27887249ddb064
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Adsorptive decontamination of paper mill effluent by nano fly ash: response surface methodology, adsorption isotherm and reusability studies

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