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Microalgae removal with Moringa oleifera.

M M Barrado-Moreno1, J Beltran-Heredia1, J Martín-Gallardo2

  • 1Department of Chemical Engineering and Physical Chemistry, University of Extremadura, Avda, De Elvas, s/n, 06071 Badajoz, Spain.

Toxicon : Official Journal of the International Society on Toxinology
|December 22, 2015
PubMed
Summary
This summary is machine-generated.

Moringa oleifera seed extract effectively removes algae from water using a jar-test method. This natural coagulant shows promise for drinking water treatment, even in complex water matrices.

Keywords:
AlgaeCoagulation–flocculationFreshwaterMoringa oleiferaNatural coagulation agents

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Area of Science:

  • Environmental Science
  • Water Treatment Technologies
  • Phycology

Background:

  • Algal blooms pose significant challenges in drinking water sources.
  • Conventional water treatment methods may require optimization for effective algae removal.
  • Natural coagulants offer a sustainable alternative for water purification.

Purpose of the Study:

  • To evaluate the efficacy of Moringa oleifera seed extract as a natural coagulant for removing various algae species.
  • To investigate the influence of operational parameters on the coagulation process.
  • To assess the applicability of Moringa oleifera in real surface water treatment.

Main Methods:

  • Jar-test experiments were conducted to assess algae removal efficiency.
  • The study examined variables including coagulant dosage, initial algae concentration, pH, agitation time, and water matrix.
  • Langmuir and Freundlich adsorption models were applied to analyze the coagulation process.

Main Results:

  • Moringa oleifera seed extract demonstrated significant algae removal capacity, particularly in highly contaminated water.
  • The coagulation process was found to be robust, with minimal impact from variations in pH and water matrix.
  • The coagulation process could be effectively modeled using Langmuir and Freundlich adsorption isotherms, yielding acceptable coefficients of determination (r2).

Conclusions:

  • Moringa oleifera seed extract is a viable natural coagulant for removing algae in drinking water treatment.
  • The effectiveness of this natural coagulant is confirmed in real surface water conditions.
  • The study supports the use of Moringa oleifera as a sustainable and efficient solution for managing algal contamination in water resources.