Optimization of Coagulation Flocculation Process for the Removal of Heavy Metals from Real Textile Wastewater

  • Dalila SakhiEmail author
  • Younes Rakhila
  • Abedellah Elmchaouri
  • Meriem Abouri
  • Salah Souabi
  • Amane Jada
Conference paper
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 913)


The coagulation flocculation process with ferric chloride as coagulant and polymer as a flocculant was optimized for the elimination of heavy metals from a real textile wastewater using 42 composite central and surface response method. The effect of the three factors (pH, dose of coagulant and volume of flocculant) on the elimination of heavy metals was investigated and found to be positive. The optimal conditions obtained from the compromise of the desirable responses such as Cd removal, Pb removal, As removal, Ni removal and Se removal were 0.64 g/L of coagulant dosage, 2.6 g/L of flocculant dosage at pH 8.1. The maximum removal of Cd, Pb, Ni, As and Se in this study achieve respectively 38.49%, 78, 88% and 61.88% 60.63%, 81.76%, 47.01% in optimal conditions.


Real textile wastewater Coagulation flocculation Heavy metals Optimization Experimental design Surface response methodology 



Authors are thankful to Ministry of National Education, Vocational Training, Higher Education and Scientific Research (MNEVTHESR) (Morocco) for the financial support (This work is part of ERANETMED-Water Project “SETPROpER” project.).


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© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Dalila Sakhi
    • 1
    Email author
  • Younes Rakhila
    • 1
  • Abedellah Elmchaouri
    • 1
  • Meriem Abouri
    • 2
  • Salah Souabi
    • 2
  • Amane Jada
    • 3
  1. 1.Laboratory of Physical and Bioorganic Chemistry, Faculty of Sciences and Technics of MohammediaHassan II UniversityMohammediaMorocco
  2. 2.Laboratory of Process Engineering and Environment, Faculty of Sciences and Technics of MohammediaHassan II UniversityMohammediaMorocco
  3. 3.Institute of Materials Sciences of Mulhouse (IS2M-UMR 7361 CNRS - UHA)MulhouseFrance

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