Japan Platform for Redesign: Sustainable Infrastructure (JPRSI)

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Soil washing method to the soil contaminated by H.H.Ms(Hazardous Heavy Metals) or oils

Technology / Service Summary

This technology reuses the soil by mechanically washing and classifying the excavated contaminated soil to separate and remove contaminants (heavy metals, oil, agrichemicals, etc.)

Purpose

By washing and classifying soil contaminated with heavy metals and oil, hazardous substances can be concentrated and adverse environmental effects can be reduced, and the washed soil can be reused for effective use of resources.

Feature

a) A large amount of soil can be treated in a short period of time
b) Applicable to complex soil contaminated with oil and heavy metals
c) By washing, it can be separated into fine fractions containing a lot of contaminants and coarse fractions such as sand
d) Although it was difficult to wash mercury by water, it can be washed by using an inorganic solvent

Effect

a) Available to reuse the washed soil as effective resources for embarkment or backfilling
b) Applicable to mercury – contaminated soil

Controlled Substance

Applicable Regions / Countries

  • Japan
  • Southeast Asia
  • Central/South Asia
  • China/ East Asia
  • Middle East
  • Africa
  • Oceania
  • Europe
  • Central/South America
  • ASEAN countries

    Indonesia,Cambodia,Singapore,Thailand,Philippines,Brunei Darussalam,Viet Nam,Malaysia,Myanmar,Lao PDR

Accomplishments

Has multiple accomplishments in Japan, including the soil mercury-contaminated

Related SDGs Goals

  • 6. Clean Water and Sanitation
  • 14. Life Below Water

Soil washing method to the soil contaminated by H.H.Ms(Hazardous Heavy Metals) or oils