18 Dec
2011
18 Dec
'11
11:50 a.m.
On 18 Dec 2011 at 20:21, Holm Tiffe wrote:
Some sayed that the lead that gets trough the bullets
of hunters and
as plummet of fishing rods into the environment is much more than that
from solder in electric waste...
That could be true. Old electronics solder is mostly tin by volume,
which is relatively more valuable than lead. Reclamation of the bulk
of solder from electronics trash would seem to be fairly simple.
On the other hand, we still have tons of lead buried along highways
because of years of use of tetraehyl lead as a gasoline additive. In
his later years, Charles Kettering as president of Ethyl Corporation
spent large amounts of money blocking investigation into harmful
effects of organic lead. Since General Motors was a partner in this
venture, it's likely that hey're sitting on old documents that could
be very embarrassing.
For years, bridges and battleships were painted with lead-bearing
paints; the water line connecting my childhood home to the street
main was constructed of lead. Lead is still being used for roof
flashing, fishing sinkers and auto batteries. Simply responsibly
processing electronic waste would eliminate the need for RoHS-type
solder, I'd think.
--Chuck