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Page: of 8

_ Brunswick sol
Sawdust has always been an
embarrassment in the lumber
business.
Every day saw mills produce tons
of it. They can’t ignore it because
within a few months their entire ;
operation would be buried in sawdust.
For years the only way to dispose of
sawdust, bark and other waste
products, that make up 50 percent of
every log milled, was burning.
There are a number of reasons why
mill owners have never been quite‘satisfied with this solution to their
sawdust problems.
First it makes the neighbors hard
to live with. When wash comes down off
the line smelling like a forest fire, the
local mill boss is bound to hear about it.
Spurred by environmentalists,
government agencies have also begun
to take a dim view of sawdust burning.
Laws have been passed which prohibit
burning in some areas and have given
some mills only a limited amount of
time to find another disposal method.
Perhaps dearest to the lumber
company is a third reason. If a useful
product can be developed for the 50
percent of logs that cannot be made
into boards there is going to be added
profits.
Spearheading the local lumberman
in a search for waste wood uses is the.
Yuba River Lumber Co. of Grass
Valley. The company has for the past
two years had a Special Products
Division.
‘Under the supervision of Don Ellis,
head of Special Products, a great deal
of progress has already been made. On
Aug. 1 the company was able to
shutdown their last functioning
sawdust burner and they are helping
other local mills shut their’s down too.
According to Ellis, most of the
experimentation done so far has been
in the area of ‘‘soil amendments.” By
the addition of chemicals and the
proper bacteria, sawdust can be used
to enrich soil for plant growth, Ellis
said.
With research carried out by Yuba
River and the help of a number of.
California universities a formula for
soil amendments was found. Various
types of amendments are now being
oduced at the company’s facilities on
Barr Meadows Road.
Sawdust is being brought there for
treatment from the Brunswick and
Lausmann mills on Bennett Street as
well as from mills in Marysville and
Camptonville.
The finished product is not just
junk that Yuba River is trying to get rid
of, Ellis explains. The soil amendments
have been designed to work with poor
soil.
In clay they break down the soils
-tendency to glob together and smother
the roots. Nitrogen can be released
uniformly. Sandy soil can also be made
usable by the addition of a_ soil
amendment.
Soil amendments of many types
are made and stored separately by
Yuba River. The type of amendment
depends upon which tree the sawdust
came from and what chemicals are
used in treatment, according to Ellis.
Cedar and fir trees have proven to .
be the most suitable for soil amendments, he said. The bark of the trees is
also used in making amendments and
potting soil for house plartts.
Soil amendments production have
not resulted in a large profit for Yuba
River so far, Ellis said. Since their. use. , .
" is not widespread, as yet, the company.’
has huge stockpiles of both sawdust
ran
October 8, 1975 Wed., The Nevada County Nugget 5
ution
THE SMOKE BELCHING sawdust burner at Yuba River Lumber Company's
Brunswick Mill has been eliminated which has helped reduce pollution at
the mill. Photo above is the old burner.
and soil amendments. .
Ellis could not give an estimate: of
what the development-had cost or howmuch has been made through sales. He
did indicate that the initial costs for
experimentation, tins of new equipment, shipment and extra personnel
far outstripped the profits.
_ “Eventually we hope to make
money,’’ Ellis said.
Yuba River’s Special Products
Division is also making use of other
waste products that were going up in
smoke a few years ago.
Bark stripped by the mills is now
being shipped all over the country for
use as decoration. If the bark is not
suitable for this purpose it is ground up
for use in soil amendments and potting
soil.
A number of uses have been found
for waste wood chips and shavings.
Shavings, when green, are shipped for
use. in animal pens. Among Yuba
River’s customers is the world’s
largest turkey farm along with a
number of chicken, sheep and horse
hes,
The shavings can now also be sent
to a'particle board plant in Rocklin that :
opened in March. Paper mills also
provide a market for the larger chips of
wood. Much of the local wood chip goes
to a plant in Antioch.
Experimentation at Yuba River is
going on now to find more uses for byproducts, Ellis said: The most hopeful
at this time is a cattle feed made from
sawdust, he said.
Because pine sawdust, which
accounts for much of the Yuba River
stockpile, is not suitable for soil
amendments Ellis hopes that they will
soon be able to feed it to cows.
The sawdust has been treated with
chemicals which break down’ the
hardest materials and make it
digestible to animals with more than
one stomach, according to Ellis. The
experiments are far enough along for
Ellis to think “‘maybe it’s cattle feed”
every time he pulls out a handful of the
treated sawdust for testing.
As far as sawdust ever being used
as food by humans, Ellis isn’t too
hopeful. We couldn’t digest it even with
the fiber broken down, he said.
“Some of the extracts from wood
are good for people but it can’t be
digested in the true form,’’ he said.
He said that it isn’t ,worth the
trouble for the lumber company
because once they have gone to the
expense of getting out all usable extracts they would still be stuck with the
bulk material. That is their problem to
begin with.
A future possibility for the Special
Products Division is production of
methyl] alcohol to be used in gasoline,
Ellis said.
“Although it would be to expensive
now,” he said, “rising gasoline prices
might make it worthwhile in the
future.”
“Wood alcohol” has been around
for a long time and has caused blindness for a lot of people unfortunate
enough to drink it.
“If only it was ethyl alcohol,” Ellis
muses, ‘“Then we could make bourbon
out of it and our problems would be
over.”
‘DON ELLIS, head of Yuba River Lumber Con:zuny's ‘Special Products
Division’' checks sawdust before’ it is prepared for ‘packaging for use in
‘ ‘soil. anidndments.
43
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