Page 9 - ImmoCem-PCT-CE Geochem.pdf
P. 9
LEACHING ASSESSMENTS – A PROBLEM OF SIZE
Whether under advective or diffusive control, contaminants can only be released at the surface!
THE SMALLER THE PARTICLE SIZE THE BIGGER THE SURFACE AREA
BIGGER SURFACE AREA = MORE MASS TRANSFER
Artificial reduction of particle size exaggerates leaching behaviour
Monolithic waste forms provide a significant reduction in mass
transfer rates due to the reduction in surface area available for
leaching
