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Energy Newsbriefs Blog

This current awareness service is prepared by the WSU Energy Program Library with funding from the U.S. Department of Energy State Energy Program. This information is provided for energy professionals and interested members of the public to highlight recent energy-related news, articles, and reports that discuss energy efficiency, energy conservation, and renewable sources of energy in engineering and policy circles.

 

Category: Agriculture

Agriculture


Building Farm And Food Scrap Digesters (Part I)

BioCycle, June 2014, by Nora Goldstein.
http://www.biocycle.net/2014/06/16/building-farm-and-food-scrap-digesters/

"A steady stream of anaerobic digestion facilities are coming on line, most equipped to process food waste. This first of a two-part series profiles several farm digesters. Part I"

Biofuel Technology Goes Mobile [Pyrolysis]

WSU College of Agricultural, Human, and Natural Resource Sciences (CAHNRS), Press Release, Jun. 2014.
http://news.cahnrs.wsu.edu/2014/06/11/biofuel-technology-goes-mobile/

"Scientists like Manuel Garcia-Perez and his graduate students, who study biosystems engineering at Washington State University, are helping to nurture the emerging biofuels industry by developing pyrolysis technologies. Garcia-Perez and Geraldo Ferreira-David of Brazil calculate material entering and exiting the pyrolysis system."

Effect of the Type of Bean, Processing, and Geographical Location on the Biodiesel Produced from Waste Coffee Grounds

Energy Fuels, 2014, by Rhodri W. Jenkins, et. al.
http://pubs.acs.org/doi/pdf/10.1021/ef4022976

"Waste coffee grounds offer a viable waste feedstock for biodiesel production. Approximately 8 million tonnes of coffee are produced globally each year and contain up to 15 wt % lipid, of which the glyceride portion is predominantly made up of palmitic, stearic, oleic, and linoleic acids. In this investigation, the variation in the oil content, saponifiable lipids, and lipid profile according to the regional location and processing or brewing techniques was assessed. A number of key fuel properties were also investigated."


High Solids Anaerobic Digestion + Composting in San Jose

BioCycle, Mar./Apr. 2014, by Nora Goldstein.
http://www.biocycle.net/2014/03/28/high-solids-anaerobic-digestion-composting-in-san-jose/

"A facility that marries dry anaerobic digestion and composting under the same roof to process the organic fraction of municipal solid waste opened for business late last year at the south end of the San Francisco Bay in San Jose, California. Zero Waste Energy Development Company (ZWEDC) — developer and owner of the 90,000 tons/year facility — recognized the benefits of colocation to enable extraction of the energy value of the food waste, followed by composting of the digestate. The plant, comprised of 16 high-solids dry fermentation digesters and four in-vessel composting tunnels, began receiving organics from the commercial sector in San Jose in mid-December."

From Cow to Car [Manure to CNG]

Manure Manager, Mar./Apr. 2014, by Diane Mettler. http://www.mydigitalpublication.com/publication/index.php?i=0&m=1559&l=1&p=6&pre=&ver=flex

"Using their 6.2 million gallon digester, Fair Oaks Farms [Fair Oaks, IN] has converted waste into enough compressed natural gas (Cng) to run their fleet of milk trucks."

Arid Anaerobics: Colorado Cattle Managers Spurred to Consider Anaerobic Digestion

Manure Manager, Jan./Feb. 2014, by Tony Kryzanowski.
http://www.mydigitalpublication.com/publication/index.php?i=0&m=1559&l=1&p=3&pre&ver=flex (article begins on page 10)

"Anaerobic digestion of cattle manure has not taken off in the arid western United States like it has in other parts of the country. The main reason it hasn’t taken hold in this part of the United States is water scarcity. Water is a critical factor in anaerobic digestion.
Researchers at Colorado State University believe this method of manure disposal might still work under the right circumstances. For that reason, they have created an online decision tool for use by both cattle feedlot and dairy farmers to help them determine if anaerobic digestion of their manure could be a viable optio
n."

Iowa State Engineers Upgrade Fast Pyrolysis Pilot Plant

Biomass Magazine, Jan. 2014.
http://biomassmagazine.com/articles/9978/iowa-state-engineers-upgrade-fast-pyrolysis-pilot-plant

Fast pyrolysis is a pathway to advanced renewable fuels from cellulosic biomass like corn stover, which Iowa has a lot of, and switchgrass, which is well suited to Iowa’s climate and soils,” [Robert C. Brown] said. “What we learn in the lab can help companies commercially develop these Iowa resources.”

Researchers: There is more to biofuel production than yield

Biomass Magazine, Jan. 16, 2014.
http://www.biomassmagazine.com/articles/9901/researchers-there-is-more-to-biofuel-production-than-yield

"When it comes to biofuels, corn leads the all-important category of biomass yield. However, focusing solely on yield comes at a high price. In the current issue of the Proceedings for the National Academy of Sciences, Michigan State University researchers show that looking at the big picture allows other biofuel crops, such as native perennial grasses, to score higher as viable alternatives."

The full paper is available at http://www.pnas.org/content/early/2014/01/08/1309492111.abstract.

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Archives of the weekly Energy Newsbriefs, from Oct. 2012 – Jan. 6, 2014, may be found on the WSU Energy Library web page.

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