just another reason to use the formalin neutralizing solutions and dump down
the drain.....

----- Original Message -----
From: "Gayle Callis" 
To: "Horn, Hazel V" ; 
Sent: Tuesday, September 10, 2002 8:59 AM
Subject: Interesting point! formalin separation from tissues for disposal


> Vinnie,
>
> Hazel brings up a good point.  Next question, is what do you do with the
> separate blood and lipid waste? Has your safety people thought of that?
or
> do you have a way to dispose of these in another manner?
>
> Maybe looking into formalin recycling would be a good choice, since you
> have to do so much work to satisfy the safety people.  Then the only waste
> you have to dispose of is what is left in bottom of recycling unit, small
> by comparison to volumes of formalin.  Personally, I don't think one can
> separate lipid out totally, it makes a colloidal solution (hope I am
> thinking correctly here) and I am sure everyone has seen cloudy formalin
> from very fatty tissue - and if you can't get it all out, what does your
> safety people make you do then??
>
> Good luck
>
>
> At 09:02 AM 9/10/02 -0500, you wrote:
> >I don't know if I can offer a reasonable solution, but wouldn't these
> >elements be harmless as they are fixed?   I don't understand their
reasoning
> >for this.   Is the waste company that hauls the spent formalin away
> >suggesting this?    We have to pour ours off as well.
> >I sure hope this isn't something that will come my way.    I'll be
> >interested in replies to this thread.
> >Hazel
> >
> >> -----Original Message-----
> >> From: Vinnie Della Speranza [SMTP:dellav@musc.edu]
> >> Sent: Tuesday, September 10, 2002 8:43 AM
> >> To: histonet@pathology.swmed.edu
> >> Subject: formalin separation from tissues for disposal
> >>
> >> I know that this topic has been discussed on the list numerous times
> >> before however we are being faced with a slightly different slant that
I
> >> would welcome your input on.
> >>
> >> Our Safety dept. has become conerned that our waste formalin contains
> >> blood and lipid that they feel must be separated from the formalin
before
> >> it can be carted away.
> >> We currently use a filtering funnel when pouring off the waste formalin
> >> but this won't extract the lipid and blood which are in liquid
suspension
> >> in the formalin.
> >>
> >> Has anyone else been required to address this issue? I'm hoping someone
> >> can offer a reasonable solution that will satisfy our Safety folks.
> >>
> >> thanks
> >>
> >>
> >>
> >> Vinnie Della Speranza
> >> Manager for Anatomic Pathology Services
> >> Medical University of South Carolina
> >> 165 Ashley Avenue  Suite 309
> >> Charleston, SC 29425
> >> Ph: 843-792-6353
> >> fax: 843-792-8974
> >
> >
> >
> Gayle Callis
> MT,HT,HTL(ASCP)
> Research Histopathology Supervisor
> Veterinary Molecular Biology - Marsh Lab
> Montana State University - Bozeman
> 19th and Lincoln St
> Bozeman MT 59717-3610
>
> 406 994-6367 (lab with voice mail)
> 406 994-4303 (FAX)
>
> email: gcallis@montana.edu
>
>