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Related Experiment Videos

Control of mercury pollution.

O R Noyes, M K Hamdy, L A Muse

    Journal of Toxicology and Environmental Health
    |January 1, 1976
    PubMed
    Summary

    Mercury (Hg) readily adsorbs onto container walls, but adding a carrier prevents this loss. Rubber effectively adsorbs mercury, offering a simple pollution control method.

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    Area of Science:

    • Environmental Chemistry
    • Analytical Chemistry

    Background:

    • Mercury (Hg) contamination in aqueous solutions poses environmental and health risks.
    • Understanding mercury's adsorption behavior in different containers is crucial for accurate monitoring and effective remediation.

    Purpose of the Study:

    • To investigate the adsorption of mercury (203Hg) onto glass and polypropylene containers.
    • To evaluate the effectiveness of a mercury carrier in preventing adsorption.
    • To explore the potential of rubber as an adsorbent for mercury pollution control.

    Main Methods:

    • Radioactive mercury (203Hg) was used to track adsorption in various solutions and containers.
    • Experiments involved different mercury concentrations, carriers, media (water, broth), and container materials.
    • Adsorption studies with rubber powder and fiberglass were conducted, examining factors like pH and rubber pretreatment.

    Main Results:

    • Significant adsorption of 203Hg onto glass and polypropylene was observed without a carrier, increasing over time.
    • Addition of a mercury carrier (HgCl) effectively prevented radioactivity loss from solutions.
    • Rubber demonstrated high adsorption efficiency for both organic and inorganic mercury, irrespective of pH or rubber pretreatment.

    Conclusions:

    • Container material significantly influences mercury loss from aqueous solutions.
    • Mercury carriers can mitigate adsorption losses, essential for accurate solution concentration measurements.
    • Rubber is a highly effective and practical adsorbent for mercury removal, presenting a viable method for mercury pollution control.

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