The properties of waste shells, which cause pollution problems, are investi
gated in Southern beach, Korea. The absorbent surface area was affected by
the contaminant gas removal efficiency of the waste shell absorbents, pore
structures, absorbent deliquescence and hygroscopicity during the contamina
nt gas reaction. The BET surface area of calcination/hydration waste shell
and limestone samples was increased by hydration in isothermal conditions.
The absorption rate with acid gas is predicted by apparatus for measuring t
he hydration rate. The BET surface area of waste shell samples hydrated at
90 degrees C isothermal condition was greatly increased. And pore size dist
ribution and diameter were increased after calcination/hydration reaction.
Waste seashells can be regarded as a good absorbent for removing acid gases
. Therefore, the recycling of waste seashells as a substitute for limestone
would be profitable.