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Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received January 9, 2017
Accepted May 25, 2017

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Polyethylenimine-coated polysulfone/bacterial biomass composite fiber as a biosorbent for the removal of anionic dyes: Optimization of manufacturing conditions using response surface methodology

Ha Neul Park¹ Chul-Woong Cho² Han Ah Choi³ Sung Wook Won^{1 3†}

¹Department of Ocean System Engineering, Gyeongsang National University, 38 Cheondaegukchi-gil, Tongyeong, Gyeongnam 53064, Korea ²School of Chemical Engineering, Chonbuk National University, Jeonju, Jeonbuk 54896, Korea ³Department of Marine Environmental Engineering and Institute of Marine Industry, Gyeongsang National University, 38 Cheondaegukchi-gil, Tongyeong, Gyeongnam 53064, Korea

sungukw@gmail.com

Korean Journal of Chemical Engineering, September 2017, 34(9), 2519-2526(8), 10.1007/s11814-017-0149-3

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Abstract

This study aim was to optimize the manufacturing conditions polyethylenimine-coated polysulfone/bacterial biomass composite fiber (PEI-PSBF) to remove anionic pollutants from aqueous solution. The contents of biomass, PEI, and glutaraldehyde (GA) were selected as independent variables, and the response was defined as Reactive Yellow 2 (RY2) uptake. The manufacturing conditions were optimized by response surface methodology (RSM) with the full factorial central composite design (CCD). The determined coefficient of determination (R2) value of the reduced quadratic model was 0.9551, and the optimal manufacturing conditions were predicted as 4.145 g of biomass, 1.104 g of PEI and 3.9 μL of GA, at where the predicted RY2 uptake was 543.78mg/g. For validating the RSM-predicted results, the RY2 sorption capacity of the optimized PEI-PSBF was evaluated through isotherm experiments. The experimentally confirmed maximal uptake was comparable to predicted one. From these studies, the manufacturing conditions for PEI-PSBF were well optimized and its sorption capacity was 3.83 times higher thanthat of the PSBF.

Keywords

Optimization Response Surface Methodology Central Composite Design Adsorption Reactive Dyes

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