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Related Experiment Videos

Optimization of coagulation-flocculation process for palm oil mill effluent using response surface methodology.

A L Ahmad1, S Ismail, S Bhatia

  • 1School of Chemical Engineering, Engineering Campus, Universiti Sains Malaysia, Pulau Pinang, Malaysia. chlatif@eng.usm.my

Environmental Science & Technology
|May 12, 2005
PubMed
Summary

This study optimizes palm oil mill effluent (POME) treatment using coagulation-flocculation and membrane separation. The research achieved 78% water recovery and 20 NTU turbidity, enabling water reuse.

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Area of Science:

  • Environmental Engineering
  • Water Treatment Technologies

Background:

  • Palm oil mill effluent (POME) poses significant environmental challenges.
  • Membrane separation is a promising technology for POME treatment and water reclamation.
  • Membrane fouling remains a critical issue in POME treatment.

Purpose of the Study:

  • To optimize the coagulation-flocculation pretreatment process for POME.
  • To mitigate membrane fouling and enhance water recovery in POME treatment.
  • To achieve low turbidity and high water recovery for water reuse.

Main Methods:

  • Utilized jar tests and Response Surface Methodology (RSM) for treatment optimization.
  • Employed a 2(3) full-factorial central composite design (CCD).
  • Investigated the effects of coagulant dosage, flocculent dosage, and pH.

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Main Results:

  • Determined optimal parameters for coagulation-flocculation pretreatment.
  • Achieved 78% water recovery with a turbidity value of 20 NTU.
  • Identified optimal coagulant dosage (15,000 mg/L), flocculent dosage (300 mg/L), and pH (6).

Conclusions:

  • Coagulation-flocculation is an effective pretreatment for POME treatment via membrane separation.
  • Optimized parameters significantly improve water recovery and reduce turbidity.
  • The integrated approach enables efficient POME treatment and water reuse.