Karmakar, Sankha and Mondal, Mrinmoy and Ghosh, Sourja and Bandyopadhyay, Sibdas and Majumdar, Swachchha and De, Sirshendu (2016) Removal of reactive dyes using a high throughput-hybrid separation process. Desalination and Water Treatment , 57 (22). pp. 10295-10311. ISSN 1944-3994

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Abstract

Toxic and carcinogenic reactive dyes are abundantly used in textile industries due to their wide variety of colour and texture. In this study, a hybrid separation process was used to remove four common reactive dyes (reactive yellow, red, black and brown) from aqueous solution. Synthetic solution of these dyes was subjected to adsorption by activated carbon followed by microfiltration (MF), using a ceramic membrane module. Dyes were completely removed by adsorption at pH 4.5 and the dye-loaded adsorbents were removed by cross-flow MF. Maximum Langmuir adsorption capacity of activated carbon for these four dyes was in the range of 88-106mg/g. Effects of trans-membrane pressure drop and cross-flow rate on the throughput of the combined process was investigated. Membrane fouling was due to the cake type of layer formed by the activated carbon particles. Five different washing protocols were tested for their efficiency and the acid-alkali wash was found to be the most effective.

Item Type:	Article
Subjects:	Engineering Materials
Divisions:	Ceramic Membrane
Depositing User:	Bidhan Chaudhuri
Date Deposited:	10 Nov 2016 07:32
Last Modified:	10 Nov 2016 07:32
URI:	http://cgcri.csircentral.net/id/eprint/3697

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