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Korean Journal of Chemical Engineering

, Volume 29, Issue 6, pp 804–811 | Cite as

Optimization of lead removal from aqueous solution by micellar-enhanced ultrafiltration process using Box-Behnken design

  • Bashir Rahmanian
  • Majid PakizehEmail author
  • Abdolmajid Maskooki
Separation Technology, Thermodynamics

Abstract

The main objective of this research was to use Box-Behnken experimental design (BBD) and response surface methodology (RSM) for optimization of micellar-enhanced ultrafiltration (MEUF) to remove lead ions from synthetic wastewater using spiral-wound ultrafiltration membrane. The critical factors selected for the examination were surfactant concentration, molar ratio of surfactant to metal (S/M) and solution pH. A total of 17 experiments were accomplished towards the construction of a quadratic model for both target variables. The experimental results were fitted with a second-order polynomial equation by a multiple regression analysis, and more than 95%, 93% of the variation could be predicted by the models for lead rejection and permeation flux, respectively. The optimum condition was found by using the obtained mathematical models. Optimization indicated that in C SDS =2mM, pH=6.57 and S/M= 9.82 maximum flux and rejection efficiency can be achieved, simultaneously.

Key words

MEUF Lead Box-Behnken Design Optimization 

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Copyright information

© Korean Institute of Chemical Engineers, Seoul, Korea 2012

Authors and Affiliations

  • Bashir Rahmanian
    • 1
  • Majid Pakizeh
    • 1
    Email author
  • Abdolmajid Maskooki
    • 2
  1. 1.Department of Chemical Engineering, Faculty of EngineeringFerdowsi University of MashhadMashhad, KhorasanIran
  2. 2.Department of Khorasan Research Institute for Food Science and Technology (KRIFST)MashhadIran

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