Anaerobic Digest
Glenfiddich Distillery in Dufftown

BioCycle March/April 2014, Vol. 55, No. 3, p. 27

Feedstock Seasonality Impact On Biogas Production
May food waste (top, left) May yard trimmings (top, right) October yard trimmings (bottom, left) November food waste (bottom, right)

First graduate student to work on-site at University of Wisconsin-Oshkosh dry fermentation digester describes feedstock variations and biogas production trends.
Brooke Koenig
BioCycle February 2014, Vol. 55, No. 2, p. 43

Solid Waste District Pilots Dry Fermentation Digester
The SmartFerm containers, now manufactured in the U.S., were dropped into place using a crane.

Small-scale anaerobic digester on Monterey Peninsula is processing 5,000 tons/year of source separated organics. Power is sold to an adjacent wastewater treatment plant.
Abbie Beane
BioCycle November 2013, Vol. 54, No. 11, p. 32

Entrepreneuring In The AD Industry
Four quasar digesters upgrade biogas to “qng” compressed natural gas, which retails for an average of $2.25/gasoline gallon equivalent (fueling station at left). About 30 quasar vehicles, including some tanker trucks, are equipped with CNG engines (see arrow above).

What seemed like a “slam dunk” in 2006 — bringing the European model of digester success to the U.S. and rapidly building a company — turned out to be a longer haul, but one that has been rewarding for quasar energy group.
Nora Goldstein
BioCycle September 2013, Vol. 54, No. 9, p. 44

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

 

To continue reading this article, Log In
or Sign Up (if you are a paid BioCycle subscriber).

If you are not a subscriber, join BioCycle today!
the one and only magazine and website on
Composting, Organics Recycling, Anaerobic Digestion

 

Anaerobic Digester Expands Treatment Options
The Food to Fuel project takes waste grease and oil from restaurants and food processing facilities and separates the oil from the water (left) to produce a heating oil. Residuals from that process, along with food waste and municipal sludge, are anaerobically digested in a 1.23 million gallon Biothane continuously-stirred reactor (below).

What began as a septic tank pumping company in 1955 has expanded into a full-service wastewater treatment company — and renewable energy producer.
Barb Culton and Richard Mattocks
BioCycle September 2012, Vol. 53, No. 9, p. 41

 

To continue reading this article, Log In
or Sign Up (if you are a paid BioCycle subscriber).

If you are not a subscriber, join BioCycle today!
the one and only magazine and website on
Composting, Organics Recycling, Anaerobic Digestion

 

Anaerobic Digestion In The Northwest
Anerobic digester, Lochmead Farms, Junction City, Oregon

In addition to dairy digesters, some operated as codigesters, two projects in development are designed to process source separated food waste streams.

Dan Sullivan
BioCycle March 2012, Vol. 53, No. 3, p. 33

Wastewater Treatment Facilities As Renewable Resource Centers
Seattle, King County Wastewater Treatment

One of the great public health triumphs of the last century — wastewater treatment — is poised for transformation into a community sustainability centerpiece.

Sally Brown
BioCycle March 2012, Vol. 53, No. 3, p. 41

 

To continue reading this article, Log In
or Sign Up (if you are a paid BioCycle subscriber).

If you are not a subscriber, join BioCycle today!
the one and only magazine and website on
Composting, Organics Recycling, Anaerobic Digestion

 

County Clusters Farms For Renewable Power Project
Dane county dgiester tanks

Green energy, job creation, dairy manure management and environmental protection all factor in to community digester in Dane County, Wisconsin.

Dan Sullivan
BioCycle February 2012, Vol. 53, No. 2, p. 31

 

To continue reading this article, Log In
or Sign Up (if you are a paid BioCycle subscriber).

If you are not a subscriber, join BioCycle today!
the one and only magazine and website on
Composting, Organics Recycling, Anaerobic Digestion