ISU scientists discover new use for cow manure

Zayira Jordan

A group of ISU scientists have discovered a new use for cow manure that could aid in conserving natural resources.

Deland Myers, associate professor of food sciences and human nutrition, said the research conducted by the ISU Biocomposities Research Group has concluded that animal-processed fiber can be substituted for the fiber that’s usually used.

“In my opinion, animal-processed fiber could be used as a supplement to other fiber that is going into a fiberboard,” Myers said.

This is the first time the BRG has worked with animal fibers, and Myers said he hopes this development will be helpful to Iowa farmers.

“[The] ultimate goal is to add value to what farmers grow in this state,” he said.

The research used in processing the new fiberboard was conducted using only ruminants manure because of its higher contents of fiber.

Douglas Stokke, member of the BRG, said the manure board is made just like regular fiber.

“The material was processed through disk refiners in a way very similar to the process used to produce wood fiber,” said Stokke, assistant professor of forestry.

Myers said using manure to make fiberboards is helpful in reducing destruction of the environment, since the new method uses a product that’s readily available.

Stokke agreed that the new method could help conserve the environment.

“Seventy-million dry tons of manure coming from beef, dairy, swine and poultry is generated in the United States,” Stokke said, “[and] 23.5 tons of fiber can be produced out of this material.”

The project’s financing was provided by Larry Johnson, director of the Center for Crops Utilization Research, Myers said, and “at least one major forest products company” has expressed an interest in the biocomposite boards.