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Defluoridation studies using laterite material.

K S Jayantha1, G R Ranjana, H R Sheela

  • 1Maland College of Engineering, Hassan, Karnataka.

Journal of Environmental Science & Engineering
|May 3, 2006
PubMed
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This study demonstrates a cost-effective defluoridation method using local materials like laterite, sand, and gravel for safe drinking water. The adsorption technique effectively removes excess fluoride, offering a viable solution for rural areas.

Area of Science:

  • Environmental Science
  • Water Treatment Technologies
  • Materials Science

Background:

  • High fluoride levels in drinking water pose significant health risks.
  • Conventional defluoridation methods are often expensive and labor-intensive.
  • There is a need for affordable and accessible water purification solutions.

Purpose of the Study:

  • To investigate the efficacy of using locally available materials for fluoride removal from drinking water.
  • To develop a cost-effective and sustainable defluoridation technique.
  • To assess the performance of laterite, sand, and gravel as adsorbent materials.

Main Methods:

  • Adsorption column studies were conducted using varying depths of laterite with a constant gravel depth.
  • Different flow rates were tested to optimize fluoride removal efficiency.

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  • The performance of the developed system was compared against established defluoridation techniques.

    • Main Results:

    • The adsorption process using laterite, sand, and gravel showed encouraging results in removing excess fluoride.
    • The technique proved effective across various laterite depths and flow rates.
    • The developed method demonstrated comparable or superior performance to costly established techniques.

    Conclusions:

    • Locally sourced laterite, sand, and gravel provide an effective and economical solution for drinking water defluoridation.
    • This adsorption-based technique is suitable for implementation in rural and resource-limited settings.
    • The study highlights a sustainable approach to addressing water quality issues related to fluoride contamination.