Construction underway creating energy from manure

Press release
August 15, 2014
By Press release

August 15, 2014, St. Louis, MO – Construction is underway in northern Missouri on an $80 million renewable energy project, developed and constructed by Roeslein Alternative Energy, LLC (RAE) in collaboration with Murphy-Brown of Missouri, LLC.

Crews are installing impermeable covers on 88 existing lagoons to harvest biogas from MBM hog finishing farms using anaerobic digestion technology developed and installed by RAE. The project is the largest of its kind, utilizing manure from one of the biggest concentrations of finishing hogs in the Midwest to create several hundred million cubic feet of renewable natural gas (RNG) annually for regional distribution.

"We are excited to see the results of our collaboration with Smithfield and Murphy-Brown begin to take shape,” said Rudi Roeslein, president of Roeslein Alternative Energy and CEO of Roeslein & Associates. “This project can be a model to show how both economic and environmental benefits can be gained by using manure in a different way."

Impermeable synthetic covers will be placed on existing nutrient treatment lagoons where barn scraper technology will deliver raw nutrients of livestock manure to covered lagoons. The covers turn the lagoons into anaerobic digesters, where naturally occurring microorganisms decompose the manure in an oxygen free environment. Biogas rises to the top where it will be collected and cleaned of impurities. What remains is more than 98 percent methane with approximately the same chemical composition as natural gas that can be used for vehicle fuel or injected into the natural gas grid system. The undigesteable solid residue can be used by local farmers as a natural fertilizer and the water can be safely used for irrigation.

"This project fits perfectly with our mission to not only to be responsible environmental stewards, but create a direct benefit to the community by helping create a product such as natural gas – a renewable, clean-burning fuel," said Bill Homann, director of administration for Murphy Brown Missouri.

"There is value in the gas we capture as alternative vehicle fuel,” said Roeslein. “There is even more value to the environment from reduced greenhouse gas emissions, eliminating rainfall effects on treatment systems, and odor reduction."

RAE retained Industrial & Environmental Concepts Inc. (IEC) to design and install the high density polyethylene (HDPE) lagoon covers with the initial 21 being installed at MBM Valley View and South Meadows farms in northern Missouri by fall 2014. RNG production is expected to begin in late 2014.

Video - http://www.youtube.com/watch?v=XQigOnv4-00

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