Page 181 - 營建產業循環經濟發展研討會-論文集

Improvement of IBA after metals removal
Sato and Fujikawa, Fukuoka U
Aging method
Immobilization and/or washing of heavy metals contained in the bottom ash by natural rain and carbon dioxide in the air
Rain
CO2
CO2
Cover soil: 4cm
Upper layer:30cm Middle layer:30cm
Under layer:30cm
90 cm
Cr(VI) Cr(VI)
Cr(VI)
IBA
Pb
Pb Pb
Surface part of final disposal site
✓ Heavy metal contaminants removal by washing ✓ Low solubility carbonate formation by CO2