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Arsenic Remediation with Dried Plant

Quantity vs. Time Experiment

For this experiment, we want to analyze for 2 things:

  • The time to reduce the arsenic contamination level below 10μg/L (WHO standard).
  • Adsorbent quantity vs. level of contamination.
  • Various experiments of contamination level vs. amount of adsorbent was conducted and the results are as follow:

    Water Hyacinth Water Lily Duckweed Fern

    Fern (Pteridophytes)

    Arsenic contamination level = 200 ppb

    In previous experiments, all adsorbents was sun-dried for 3 days with approximately 10% moisture remain. We have proven Dr. Truyets' theory of dried plant has faster results than live plant. In this experiment, we want to confirm that theory by comparing with a less dried adsorbent.
    A batch of adsorbent was sun-dried for only one day with approximately 50% moisture remain and will be compares with a standard 10% moisture.


    As we predicted, the moisture in the adsorbent does vary the rate of adsorption. We drawn a conclusion that at 10% moisture remaining, it is the optimum dryness condition for the adsorbent.


    Pteridophyte (commonly known as fern) is a member of a group of vascular plants that reproduce via spores and have neither seeds nor flowers. Fern stems are often referred to as "rhizomes", even though they grow underground only in some of the species. Ferns are not of major economic importance, but some are used for food, medicine, ornamentals and even for remediating contaminated soil. They have been the subject of research for their ability to remove some chemical pollutants from the atmosphere.