By Lisa Mussman
Public Affairs Manager for northwest Kansas
For decades, KDOT has used a combination of sand, salt and
salt brine as part of their snow fighting efforts, but crews in parts of
northwest Kansas have added a new tool to their arsenal in recent years: Beet
juice.
Beet juice is an agricultural by-product from the process to
make goods such as table sugar and cattle feed. As a standalone product, beet
juice has little to no melting properties, but when mixed with salt brine, it
will help the brine continue to work at lower temperatures to treat icy and snow-packed
surfaces. Regular salt brine begins to lose effectiveness at around 15 degrees
Fahrenheit. When beet juice is added, the freezing point can be lowered by
another 15 to 20 degrees.
Colby Subarea Supervisor Brad Reeh says his crew has been
using the product for about five years and has had success with it.
“We have been mixing it at a 10 percent ratio with brine and
only using it when the temps are going to be below 15 degrees.” Reeh said.
“When combining it with brine and salt and sand, it seems to stick to the
snow-pack better and keep the product working on the road longer.”
That stickiness and staying power is important in allowing
KDOT crews more time to work on other routes if needed. But don’t expect to see
the roads turning red or purple. The solution is actually brown in color and
can be easily washed off vehicles.
While beet juice is still relatively new to Kansas, it has
been used in the Northeast and Upper Midwest since the early 2000's. It is among
a handful of alternative products including molasses, beer waste, pickle brine
and cheese brine that other departments of transportation are experimenting
with to reduce salt usage.
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