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Related Experiment Videos

Antimony in municipal waste.

N Watanabe1, S Inoue, H Ito

  • 1Osaka City Institute of Public Health and Environmental Sciences, Japan.

Chemosphere
|October 16, 1999
PubMed
Summary

Municipal waste in Japan contains significant antimony (40-50 g/t). This study highlights that approximately 20% of Japan's annual antimony production ends up in landfills, raising leaching concerns.

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Area of Science:

  • Environmental Science
  • Analytical Chemistry
  • Waste Management

Background:

  • Antimony is a metalloid with various industrial applications.
  • The environmental fate and disposal of antimony-containing products are not fully understood.
  • Municipal solid waste (MSW) represents a potential sink for discarded antimony.

Purpose of the Study:

  • To quantify the antimony content in municipal waste.
  • To estimate the proportion of annual antimony production disposed of in Japanese landfills.
  • To assess the potential for antimony leaching from waste.

Main Methods:

  • Sampled municipal waste underwent drying and crushing.
  • Antimony determination using Kjeldahl decomposition coupled with batch hydride generation spectrometry.
  • Antimony analysis via neutron activation analysis.

Main Results:

  • The overall antimony content in raw municipal waste ranged from 40 to 50 g/t.
  • An estimated 20% of Japan's annual antimony production is discarded as municipal waste.
  • Antimony leaching from discarded materials in landfills is a potential environmental risk.

Conclusions:

  • Municipal waste is a significant repository for antimony in Japan.
  • The high antimony content necessitates attention to waste management strategies.
  • Potential leaching of antimony from waste requires further investigation to mitigate environmental contamination.

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