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Article

Process Parameters Optimization of Gallic Acid Removal from Water by MIEX Resin Based on Response Surface Methodology

1
School of Civil Engineering and Architecture, Anhui University of Technology, 59 Hudong Road, Maanshan 243002, China
2
Engineering Research Center of Biomembrane Water Purification and Utilization Technology, Ministry of Education, 59 Hudong Road, Maanshan 243002, China
*
Author to whom correspondence should be addressed.
Processes 2020, 8(3), 273; https://doi.org/10.3390/pr8030273
Received: 26 November 2019 / Revised: 26 January 2020 / Accepted: 27 January 2020 / Published: 27 February 2020
(This article belongs to the Special Issue Green Separation and Extraction Processes)
In this work, the response surface methodology was used to optimize the process parameters of gallic acid adsorption on magnetic ion exchange (MIEX) resin. Based on Box-Behnken Design, a quadratic polynomial model equation including solution pH, gallic acid concentration, MIEX resin dosage and adsorption time was established. The reliability of the established regression equation was tested by variance analysis. Based on the regression equation, the technical parameters for gallic acid adsorption on MIEX resin were optimized and the effects of interaction between variables on the removal of gallic acid were analyzed. The results showed that the established regression equation was reliable and could effectively predict the removal of gallic acid. The optimal technical parameters were determined to be a pH of 9.17, a gallic acid concentration of 8.07 mg/L, a resin dosage of 0.98 mL/L and an adsorption time of 46.43 min. The removal efficiency of gallic acid was 97.93% under the optimal parameters. The interaction between pH and adsorption time had the most significant effect on the removal of gallic acid. The results of this study demonstrated that MIEX resin can remove gallic acid efficiently and relatively quickly under the condition of optimal technical parameters. View Full-Text
Keywords: MIEX resin; gallic acid; process parameters optimization; adsorption; response surface methodology MIEX resin; gallic acid; process parameters optimization; adsorption; response surface methodology
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MDPI and ACS Style

Zhou, Q.; Ding, L.; Zhu, Y.; Zhong, M.; Yang, C. Process Parameters Optimization of Gallic Acid Removal from Water by MIEX Resin Based on Response Surface Methodology. Processes 2020, 8, 273. https://doi.org/10.3390/pr8030273

AMA Style

Zhou Q, Ding L, Zhu Y, Zhong M, Yang C. Process Parameters Optimization of Gallic Acid Removal from Water by MIEX Resin Based on Response Surface Methodology. Processes. 2020; 8(3):273. https://doi.org/10.3390/pr8030273

Chicago/Turabian Style

Zhou, Qiang; Ding, Lei; Zhu, Yunhua; Zhong, Meiying; Yang, Chuchu. 2020. "Process Parameters Optimization of Gallic Acid Removal from Water by MIEX Resin Based on Response Surface Methodology" Processes 8, no. 3: 273. https://doi.org/10.3390/pr8030273

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