![](3D"domtar-tour-10sep2009_files/image002.jpg")
=
&nbs=
p;
From Rhonda Smith, ET section member and Domtar employee -
&nbs=
p;
Domtar is North AmericaR=
17;s
largest manufacturer and marketer of uncoated freesheet (copy paper) and the
second largest in the world. =
We are
a recognized leader in environmentally-sustainable practices. Our ongoing efforts to achieve For=
est
Stewardship Council (FSC) certification for all of our mills, facilities and
forests is one of the broadest in scope in the industry. While the mill only became a part =
of the
Domtar family in 2007, the plant has a long history in Kingsport. It was started in 1916 as the King=
sport
Pulp Mill and purchased by Mead in 1927.&n=
bsp;
The mill was purchased from Mead by Willamette in 1995, and a
modernization project was announced in 2000. Weyerhaeuser acquired Willamette
Industries in 2002. Our new p=
aper
machine K1 was started in August 2002 and the new pulp mill was started in
2003. A new turbine-generator=
was
brought on line in 2006.
The mill produces over 425,=
000 tons
of paper per year. The sheet =
of
paper produced is 30 feet wide and travels down the paper machine as it is
being formed at 55 mph. The p=
aper
machine is over two football fields in length. At the heart of the new pulp mill =
is a
continuous digester which stands 186 feet tall and 20.5 feet in diameter. It is a pressure reactor that has a
loaded weight of over 4 million lbs.
A modern pulp bleaching system uses a two-stage oxygen delignificati=
on
step followed by a three-stage bleach plant. Cooking chemicals are recovered in=
a
black liquor recovery boiler and re-used after being causticized in a lime
kiln. The chemical recovery c=
ycle is
the key process step in making paper cost effectively with minimal
environmental impact. The Kin=
gsport
mill uses renewable energy for 98.5% of its steam generation.
Attendance at the tour was =
40
people. Prior to the tour, a
detailed technical presentation was made discussing the power plant, fiber
line, and paper making operations.
After the presentations, the group toured the delignification and pa=
per
machine sections of the plant. The
photos below were provided by Dr. Mark Pollack from Northeast State:
![3D"IMG_1540.JPG"](3D"domtar-tour-10sep2009_files/image004.jpg")
![3D"IMG_1541.JPG"](3D"domtar-tour-10sep2009_files/image006.jpg")
![3D"IMG_1542.JPG"](3D"domtar-tour-10sep2009_files/image008.jpg")
![3D"IMG_1543.JPG"](3D"domtar-tour-10sep2009_files/image010.jpg")
![3D"IMG_1568.JPG"](3D"domtar-tour-10sep2009_files/image012.jpg")
=
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