Bev
Export of first world waste to developing countries is a separate issue.
It goes far beyond the issue of lead, and it needs to be controlled.
Global enforcement of OSHA-like standards for emissions from smelters is
also an issue that needs to be dealt with. Violations of needed
regulations do not justify throwing the electronics industry baby out with
the dirty water.
--- Bev Christian <[log in to unmask]> wrote:
> Harvey,
> You know I have been against lead free from an environmental point of
> view (and have published papers proving aspects of that), but I must
> come to Ron Lasky's defence. Decreasing the number of lead-containing
> boards that go into a recycling plant will undoubtedly make things
> better for the workers. The question is how much and is it worth it?
> For instance, if we are talking about a first world, well run plant like
> the Noranda one in the greater Toronto area (which I have toured twice),
> it makes little difference whether the boards are leaded or lead-free.
> But if we are talking abut a less well run place... So Ron's assertion
> is not false, he should have just used a few qualifiers.
>
> Bev Christian
> RIM
>
> -----Original Message-----
> From: Leadfree [mailto:[log in to unmask]] On Behalf Of Harvey Miller
> Sent: July 17, 2006 10:29 AM
> To: [log in to unmask]
> Subject: [LF] "Safe" recycling Printed Circuits to reclaim solder--does
> that really justify Lead-Free?
>
> The latest lead-free rationalization claims that it makes recycling
> "safer". None other than Dr. Ron Lasky says so.
> One unintended consequence of l-f will demonstrate again how false is
> that
> assertion.
>
> Silver in the mix will finally incentivize commercially viable
> recycling,
> that is true. But the enormous mass of legacy electronics with tin-lead
> solder is all around us. Even today, penetration of lead-free solder is
> probably still less than 50%. Some boards with lead will find their way
> into the same recycling plants as boards with silver.
>
> Boards will be ground up and and the metal content melted out for
> separation of silver,lead, etc. Companies like Noranda have been doing
> this for many years. But there's an better example, primary silver
> extraction.
>
> How is the tiny component of silver separated from the preponderant lead
> when they come all mixed from the mine? That the way it's done and with
> today's pollution controls, done safely to personnel and to the
> environment. Propagators of this latest lead-free lie will have a hard
> time proving otherwise.
>
> The real toll to the environment of their lead-free efforts will be an
> enormous increase in mining of silver and tin to replace lead. They
> have
> the gall to claim that they are care about safety or the environment.
>
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