This interesting article was found at www.rpowersource.com
“The Value of Auto Shredder Residue” explains that the life of an automobile does not have to end at the crusher.
The Value in Auto Shredder Residue
In North America every year, almost 12 million
automobiles reach the end of their useful lives. As
new cars continue to be manufactured and sold, the
disposal of old vehicles represents a growing issue and
environmental threat. Fortunately, 75 percent of an
end-of-life vehicle (ELV) can be recycled.
Automobiles consist of primarily ferrous metals, such
as steel and iron as well as non-ferrous metals like
aluminum and zinc. Automobile recyclers have long
been able to recover up to 85 percent of a vehicle’s total
materials just by collecting the residual ferrous and non-ferrous metals
that are left behind after shredding. The remaining materials—a mixture
of plastics, wood, fabric and glass—are known as automotive shredder
residue (ASR) or auto fluff.
ASR usually consists of a Mixture of plastics, rubber; glass, wood
products, cloth, paper, foam, dirt and electric wiring, as well as, a variety
of ferrous and non-ferrous metals. The U.S. generates around five million
tons of ASR every year. While most ASR is currently disposed of in landfills,
up to 60 percent of auto shredder residue can actually be recovered as
An ASR separation system can be a continuous dry process that
separates ASR into a mixture of polymers, wood, glass, metals, sand, rocks
and dirt. Once the oversized material is removed, the residue may go
through a shredder to further reduce its size. The ASR is then separated
with the use of a trommel screen before a magnetic separator recovers
the ferrous metals and an eddy current separator and other separators
recover the non-ferrous metals. The end product contains more than 90
percent of the recycled polymers that were present in the original ASR.
In 2013, the EPA announced a new interpretation of their regulations
on ASR that allows plastics to be recovered during the recycling process,
provided that the materials do not contain levels of PCBs exceeding 50
parts per million. This new interpretation has the potential to reduce the
amount of ASR that is consigned to landfills every year by more than one
million tons and may improve the material recovery rate for ELVs to more
than 90 percent.
Worldwide Recycling Equipment Sales, LLC in Moberly, Missouri,
can supply a full range of equipment to dry, sort and move automotive
shredder residue. Our new and used dryers are designed specifically to
dry ASR, making the material easy to transport, separate and handle. We
can size and build a dryer to best suit your specific project needs. In the
past, we have designed plants for industry clients that process 40 and 80
tons per hour.
Our Vulcan® Dryer Systems consist of a correctly sized drum and a
burner mounted to a combustion chamber. After passing through the
dryer, the dried material is discharged to a transfer conveyor for further
sorting and separation. The vapor from the process is pulled through a
cyclone that is specifically designed to deal with the fine ASR dust, as
well as a high-temperature baghouse which removes all fine particulates
from the vapor stream. All ductwork, cyclone and other high-wear areas
in the system have abrasive resistant plates to reduce lifetime wear and
Recycling the polymers and residual metals in ASR would save the
equivalent of 24 million barrels of oil each year and would reduce carbon
dioxide emissions by 12 million tons. As recyclers around the world strive
to recycle as much of old vehicles as possible, the value of auto shredder
residue is only increasing and growing more apparent.
For more information on ASR drying systems, contact Worldwide
Recycling Equipment Sales, LLC at (660) 263-7575 or wwrequip@
wwrequip.com. View our complete inventory online at www.wwrequip.com.
Writer/Copy/Social Media Specialist, Worldwide Recycling Equipment Sales, LLC
Photo created from combination Pintrest post and R.H. Willson