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Modelling and optimization studies on decolorization of brilliant green dye using integrated nanofiltration and photocatalysis

Donkadokula, Naresh Yadav, Kola, Anand Kishore and Saroj, Devendra (2020) Modelling and optimization studies on decolorization of brilliant green dye using integrated nanofiltration and photocatalysis Sustainable Environment Research, 30, 9.

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Abstract

The current work explores the treatment of dye wastewater using the combination of photocatalysis and ceramic nanofiltration process. Commercial ceramic membrane and titanium dioxide (TiO2) photocatalyst were used in this study to investigate the removal of Brilliant Green (BG) dye from the synthetic dye wastewater solution. The effect of various operating parameters on dye decolorization and total organic carbon removal were investigated. The operating parameters (pH, catalyst loading and time duration) were optimized using an experimental design model namely Response Surface Methodology (RSM). The use of experimental design by RSM resulted in the improvement of dye decolorization at optimum conditions. In addition to these operating parameters, the trend of initial dye concentration and the influence of catalyst loading on permeate flux was also studied. Around 99% of decolorization was obtained by the hybrid system at 500 mg L− 1 of dye concentration, 1 g L− 1 of TiO2 dosage, pH of 4.2 and 90 min. The integrated system i.e. photocatalytic reactor with nanofiltration membrane has shown complete removal of BG dye compared to individual systems. From the present study, it can be concluded that this integrated system is one of the efficient methods for dye treatment.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Civil and Environmental Engineering
Authors :
NameEmailORCID
Donkadokula, Naresh Yadavn.donkadokula@surrey.ac.uk
Kola, Anand Kishore
Saroj, DevendraD.Saroj@surrey.ac.uk
Date : 12 May 2020
DOI : 10.1186/s42834-020-00050-y
Copyright Disclaimer : Open Access. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
Uncontrolled Keywords : Dye degradation; Photocatalysis; Ceramic nanofiltration; Hybrid system; RSM
Depositing User : Clive Harris
Date Deposited : 16 Jun 2020 09:15
Last Modified : 16 Jun 2020 09:15
URI: http://epubs.surrey.ac.uk/id/eprint/857986

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