Re: Two Questions: endometriosis & chlorine bleaching

[GCJeffrey@aol.com]

Mike

You wrote:
Subj:    Two Questions: endometriosis & chlorine bleaching
Date:   9/10/99 9:58:49 PM Eastern Daylight Time
From:   catalyst@envirolink.org (Mike Ewall)
Sender: dioxin-l@essential.org
Reply-to:   catalyst@envirolink.org
To: dioxin-l@essential.org (Multiple recipients of list DIOXIN-L)

1) How established is the link between dioxin and endometriosis?  Should it
be referred to as a "probable" link or are we more confident than that?

Suggest you check references to Rachels #463
"Dioxin and Health"
http://www.rachel.org  (has #463 and other dioxin articles)
or find same article go to:
<A HREF="http://sites.netscape.net/GeorgeCJeffrey/463dandh">Dioxin & Health   
http://sites.netscape.net/GeorgeCJeffrey/463dandh</A>

And check references in Chapter 9, Health
Assessment for TCDD Dioxin (Draft for over
10 years in two revisions) 
See link on:
<A 
HREF="http://sites.netscape.net/georgecjeffrey/homepage">http://sites.netscape
.net/georgecjeffrey/homepage</A>
(Also check ED Briefing Book for Elected Officials
link on this page)

and check original research on Nat. Lib. of Medicine
<A HREF="http://www.student.ibg.uu.se/cellen/genteknik/literature.html">NLM 
www.student.ibg.uu.se/cellen/genteknik/literature.html</A> 


2) How are dioxins formed when bleaching paper products and tampons?  Are
there dioxins contaminating the bleaches themselves or are dioxins formed
in the bleaching process?  I understand that dioxins are formed in
temperature ranges around 400-750 degrees Fahrenheit (200-400 Celcius).
Does the bleaching process get to that temperature range or are dioxins
formed some other way?

Chlorine is "recycled" in to combustion
zones.


The caustic chemical loop passes:
1. digesters
2.  washers-bleaching units.
3.  evaporators
4.  recovery boiler
5.  lime kiln

Some of the fiber (carbon) makes its way
to the recovery section (steps 3,4,5 etc)

Most of the fiber, but not all exits at the
washers separate from the caustic but
caustic goes through recovery (steps 3,4,5
etc above) and IS REINTRODUCED AT
THE DIGESTERS WITH DIOXIN CONTAMINATION.    

How?

Recycled fiber
There are also interconnected water loops
throughout a paper mill.  The water has
fine fibers and chemicals and must be cleaned
up and part recycled.

Chlorine is introduced in the bleaching section
and for killing slime-bacteria (along with other
nasties including metals) and can be "recycled"
into the recovery boilers and lime kilns where 
the temperatures are high and air-
oxygen is introduced for combustion.
As the mixtures cool, dioxin is formed.

VaLa, you have competed the dioxin "fire triangle"


      Chlorine
          .
       .     .
     .         .
  .  .  .  .  .  .
Carbon      Oxygen
In presence of metals for catalyzation
and elevated temperatures that cool
through the range where dioxin is formed
and gases pass out exhaust system
and a mixture of organics and water
condense out.  Also caustic recycled
out of recovery boilers and evaporators
can have dissolved Cl and O2....on its
way back to the digesters.



Almost all paper mills in Europe use
ozone-peroxide for bleaching.



George C. Jeffrey BS ChE
Fellow "Lab Human" in the 100 year halide experiment-bromine, chlorine, 
florine.
Citizens Reaction Against Pollution
PO Box 11622
Jacksonville FL 32239
(904)564-2620
GCJeffrey@aol.com

Citizens Reaction Against Pollution was
started in 1986 by John Austin after finding
PCB's leaking on a childrens play area at the
Jacksonville Naval Air Station.

Citizens Reaction Against Pollution is
listed in the Poison Control Center and
library book "Chemical Exposure and
Human Health" by Cynthia Wilson
http://biz-comm.com/CIIN/   click on Book


NEVER EVER COMPLETE THE DIOXIN
FIRE TRIANGLE.