In Peru. where only short—term storage is
required because of the long cane
crushing season and mills have no
chemical recovery, weak black liquor is
sometimes sprayed onto moist bulk storage
piles to neutralize the acids formed;
largely to prevent corrosion of the
storage slab and equipment. As the
storage time is so short, little damage
is done. The use of black liquor on
long—term storage piles is detrimental.