Wastewater Treatment Plants Shrink Carbon Footprint
The West Lafayette (Indiana) Wastewater Treatment Utility installed a receiving station with a platform, integrated cart tipper (left) and a JWC Environmental Macho Monster grinder to handle preconsumer food scraps such as melon rinds and banana peels.

BioCycle series concludes with a look at water resource recovery facilities in California, Indiana and Wisconsin. Part II
Marsha Johnston
BioCycle July 2015, Vol. 56, No. 6, p. 38

 

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Composting • Renewable Energy • Sustainability

 

Shedding Light On High Strength Organics For Codigestion
High strength organics used for codigestion at Jordan Dairy Farms in Rutland, Massachusetts include ice cream waste, processed meat DAF, dairy wash water and buttermilk whey.

Collecting sufficient data on high strength feedstocks for codigestion is essential to the understanding of process impacts and costs, and gaining acceptance from researchers and practitioners.
Vincent Apa and Patrick Evans
BioCycle July 2015, Vol. 56, No. 6, p. 41

 

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Composting • Renewable Energy • Sustainability

 

Oregon WWTP’s Energy Net Zero Journey
Haulers connect to the FOG receiving station, comprised of two tanks, a FOG grinder, unload/tank mixing pump and a feed pump. Tipping fee is $.08/gallon. The plant has two 400 kW CAT engines (right).

Energy efficient digester mixers and treatment plant blowers, as well as installation of a solar array, FOG receiving system and two 400 kW CHP engines, are credited with helping to achieve energy net zero performance.
Nora Goldstein
BioCycle March/April 2015, Vol. 56, No. 3, p. 63

Anaerobic Digest
US EPA AgSTAR U.S. digesters

BioCycle December 2014, Vol. 55, No. 11, p. 16

Water Environment Research Foundation Codigestion Survey

The Water Environment Research Foundation (WERF), the New York State Energy Research and Development Authority, Hazen and Sawyer, Kennedy/Jenks Consultants and Carollo Engineers have collaborated to develop a common survey to obtain information for three separate research projects related to codigestion of high strength wastes.

Anaerobic Digest
Food waste headed for digestion at Sensenig Dairy in Kirkwood, Pennsylvania.

BioCycle October 2014, Vol. 55, No. 9, p. 15

Anaerobic Digest
Storms Hog Power (SHP) facility, Bladenboro, North Carolina

BioCycle July 2014, Vol. 55, No. 6, p. 16

Codigestion In Central Florida
The codigestion facility includes a mixing tank, two complete mix anaerobic digesters operated in parallel, and a post digestion tank with a biogas holder mounted to the top (seen at right).

New digester in the Orlando region processes 130,000 tons/year of biosolids, fats, oils, grease and food waste,

producing power, a Class AA granular fertilizer and phosphorous-rich struvite.
Meredith Sorensen
BioCycle March/April 2014, Vol. 55, No. 3, p. 48

Codigestion Potential At Large-Scale Wastewater Treatment Facility
The Deer Island facility has twelve 3-million gallon mesophilic digesters

A study for the Deer Island treatment plant in Boston Harbor evaluated the feasibility of codigestion, and whether the economic benefits outweigh the costs.
David L. Parry
BioCycle January 2014, Vol. 55, No. 1, p. 55

 

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BioCycle, The Organics Recycling Authority
Composting • Renewable Energy • Sustainability

 

Agricultural Anaerobic Digestion In The U.S.
Figure 2. Technologies at farm AD facilities

The number of digesters at agricultural operations increased in 2012 — although less than 2 percent of dairy and swine operations in the U.S. have AD systems.
Nora Goldstein
BioCycle September 2013, Vol. 54, No. 9, p. 41

Analyzing Food Waste Management Methods
Figure 1. Comparison of greenhouse gas emissions (as CO2e) from food waste management methods

Research was conducted on greenhouse gas emissions and the economics of five different options for communities to manage food waste streams — including codigestion and composting. Part III
David L. Parry
BioCycle June 2013, Vol. 54, No. 6, p. 36

 

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Composting • Renewable Energy • Sustainability

 

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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Composting • Renewable Energy • Sustainability

 

Improving Economics Of Codigestion
Figure 1. Organic waste tipping fee required based on electricity cost

The economics of an organic “waste to energy” facility are strongly dependent on the waste characteristics,
and costs of digestion and solids processing after digestion. Part I
David L. Parry
BioCycle April 2013, Vol. 54, No. 4, p. 48

 

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Renewable Energy From Organics Recycling 2012
BioCycle Renewable Energy From Organics Recycling Conferenc 2012 Preview

BioCycle’s 12th Annual Conference in St. Louis, Missouri focuses on optimizing management of operating facilities, strategies for new project and product development and building biogas markets.
Nora Goldstein
BioCycle September 2012, Vol. 53, No. 9, p. 35