Anaerobic Digest
ermont Technical College held a groundbreaking ceremony on April 30 for its Central Vermont Recovered Biomass Facility Anaerobic Digester (CVRBFAD).

Tweet BioCycle May 2013, Vol. 54, No. 5, p. 15 Randolph, Vermont: Groundbreaking For Food & Farm Waste Biogas Plant Vermont Technical College held a groundbreaking ceremony on April 30 for its Central Vermont Recovered Biomass Facility Anaerobic Digester (CVRBFAD). The facility, colocated with the farm fields on the college’s Randolph Campus, will produce electricity
Farm Digester Progress In Pennsylvania
Pennsylvania has 30 dairy digesters, including the one shown at Oregon Dairy, as well as around 5 swine digesters. About 10 of those have been installed since 2010.

Deputy Secretary of Agriculture Jay Howes and Center for Dairy Excellence Director John Frey share insights on farm digester trends in the Keystone State.
Nora Goldstein
BioCycle May 2013, Vol. 54, No. 5, p. 26
Art And Science Of Digester Heat Exchange
Combined heat and power (CHP) systems produce both thermal and electric energy. The unit selected is dependent on the amount of heat required and the goals of the AD facility.

Providing sufficient thermal energy is a fundamental requirement to successful AD operation. This primer reviews temperature requirements and methods to attain and maintain recommended values.
Kevin Jankowski
BioCycle May 2013, Vol. 54, No. 5, p. 36

 

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Anaerobic Digestion In The United Kingdom
Of the UK’s nonwater industry plants, 44 use agricultural feedstocks such as slurries and crops. One example is the Spring Farm anaerobic digester in Norfolk, UK.

The AD sector in the UK has grown exponentially with 108 nonwater industry plants as of April — up from 74 a year ago. The ADBA outlines key steps needed to continue this pace.
Matt Hindle
BioCycle May 2013, Vol. 54, No. 5, p. 41
Connections: Kevin Bacon Compost Equivalents
Sally Brown

Sally Brown
BioCycle May 2013, Vol. 54, No. 5, p. 45

 

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Texas Composter Grows With Biosolids
With last year’s drought and ban on burning, New Earth began doing off-site grinding. Its new Morbark horizontal grinder on tracks facilitates processing at other locations.

New Earth Compost and Soils upgraded its Conroe facility to process biosolids and added a mobile horizontal grinder to increase its off-site processing services.
Larry Trojak
BioCycle May 2013, Vol. 54, No. 5, p. 24
Design Considerations In Covered Aerated Static Pile Composting
The Gore cover system uses fabric covers made of a layer of ePTFE (see close-up) sandwiched between two layers of polyester for structure.

Synthetic covers include polyethylene (PE) tarps, flexible vinyl fabrics, PE fleece blankets and expanded polytetrafluoroeth-ylene. Covers are used with both forced and induced aeration. Part III
Craig Coker and Tom Gibson
BioCycle May 2013, Vol. 54, No. 5, p. 21

 

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Commentary: Biogas Council State Legislative Update
Norma_McDonald

Norma McDonald
BioCycle May 2013, Vol. 54, No. 5, p. 44
Anaerobic Digestion And Algal Raceway System
Figure 1. Flowchart of Novel Integrated Farm-Based Biorefinery

Michigan State University integrates AD with other biological processes to convert organic wastes into value-added fuels that are needed to enhance the economic and environmental performance of organic waste management.
Louis Faivor, Wei Liao and Dana Kirk
BioCycle May 2013, Vol. 54, No. 5, p. 29

 

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Codigestion Research Builds Facility Operator Confidence
Figure 2. Nutrient limits in food waste digestion

Research can improve the economic viability of codigestion facilities and ease concerns of managers of water reclamation facilities about receiving additional organic waste and the potential for digester upsets. Part II
David L. Parry
BioCycle May 2013, Vol. 54, No. 5, p. 32

 

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Equipment News
Quasar's q-bio adsorption technology binds nutrient-rich anaerobic digester effluent with woody waste materials such as yard trimmings to create a high value compost product.

BioCycle May 2013, Vol. 54, No. 5, p. 47

Editorial: Getting It
Nora Goldstein, BioCycle

Nora Goldstein
BioCycle May 2013, Vol. 54, No. 5, p.4
Composting Roundup
Agri Service, Inc.’s newly relocated El Corazon Compost Facility in San Diego

BioCycle May 2013, Vol. 54, No. 5, p.12
Kitchen Academy Combines Food Rescue + Job Training
Since 2009, twelve 13-week sessions have been conducted at the Community Kitchen Academy, graduating 87 students with an 86 percent success rate in job placement or continuing education.

Nate Clark
BioCycle May 2013, Vol. 54, No. 5, p. 18
BioCycle World
BioCycle_REFOR13_Conference

BioCycle May 2013, Vol. 54, No. 5, p. 6