Anaerobic Digest

BioCycle October 2017, Vol. 58, No. 9, p. 14

Poultry Litter Digestion
Poultry litter contains valuable major and minor plant nutrients, and a significant amount of energy.

Poultry litter — a heterogeneous and fairly dry mix that includes manure and bedding — can be diluted to improve its digestibility. Part I
Craig Coker
BioCycle September 2017, Vol. 58, No. 8, p. 50

Liquid Manure And Digestate Composting
Figure 2. Turning and aeration screws along the bottom of the traveling bridge

Researchers in Italy examined fate of nitrogenous compounds during composting to meet EU nitrate limit of 152 lbs/acre.
Alessandro Chiumenti and Craig Coker
BioCycle July 2017, Vol. 58, No. 6, p. 23

Anaerobic Digest

BioCycle  June 2017, Vol. 58, No. 5, p. 14

Anaerobic Digest

BioCycle December 2016, Vol. 57, No. 11, p. 14

Florida Dairy Succeeds With AD System
Screen separators at the mixing pit.

North Florida dairy with 6,100 mature cows and 5,500 replacements installed anaerobic digestion system that is yielding multiple benefits.
Molly Farrell Tucker
BioCycle September 2016, Vol. 57, No. 8, p. 47

Dairy Beds With Manure Solids

Vern-Mont Farm installed solids separation equipment and a rotary compost drum to produce bedding for its milking cows.
Robert Spencer
BioCycle September 2016, Vol. 57, No. 8, p. 62

Anaerobic Digest

BioCycle July 2016, Vol. 57, No. 6, p. 14
DC Water Introduces Digestate Product; Tractor Runs On Biomethane; Grocery Chain Creates Slurry For Digester

Growing A Dairy … And A Digester
As part of the expansion, Norm-E-Lane installed a combined heat-and-power unit made by MTU Onsite Energy. The engine is rated at 763 kW, but is limited to producing 600 kW per the dairy’s power purchase agreement.

Norm-E-Lane Dairy in Wisconsin installed an anaerobic digester in 2007, and “outgrew” it several years later, prompting expansion and a new engine.
Nora Goldstein
BioCycle March/April 2016, Vol. 57, No. 3, p. 38

Egg Laying Operation Finds Solutions Via Composting
A Brown Bear PTO composting aerator attached to a farm tractor is used to blend the feedstocks and agitate and aerate the composting piles. Photo courtesy of Brown Bear Corp.

Baer Brothers Egg composts manure from approximately 1.2 million laying hens. In 2015, composting also took care of birds killed by the avian flu outbreak.
Dan Emerson
BioCycle January 2016, Vol. 57, No. 1 p.34

Advancing Organics Recycling On The East Coast
Demo plots have been installed on the Turf Valley Country Club grounds (adjacent to Conference hotel) to compare standard treatment for turf establishment to “suburban subsoiling” via decompaction and compost amendment. Inset image features core sample of soil prior to treatment.

Meeting demand for organics processing infrastructure, building climate-resilient communities and restoration of the Chesapeake Bay watershed are hot topics for discussion at BioCycle East Coast Conference 2014.
Nora Goldstein
BioCycle September 2014, Vol. 55, No. 8, p. 28

Digested Dairy Manure To High-End Potting Soil
Magic Dirt is blended with natural recycled materials and packaged in one cubic foot bags that are currently sold in Idaho and parts of several other Western states.

An anaerobic digester development company launched a bagged potting soil product to utilize digested dairy manure fibers and improve long-term success of facilities.
Nora Goldstein
BioCycle July 2014, Vol. 55, No. 6, p. 48

Connections: Manure Universe
Sally Brown

Sally Brown
BioCycle May 2014, Vol. 55, No. 4, p. 45

Anaerobic Digest
Glenfiddich Distillery in Dufftown

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

Managing Swine Manure In Utah
Liquid effluent is pumped from finishing barns to a one million gallon influent basin (above left). Submersible pumps transfer the liquid via a series of pump lift stations (above right) to the covered digesters.

The Blue Mountain Biogas plant installed two covered digesters with a total capacity of 22 million gallons to manage manure from about one million hogs raised annually.
Bryan Orchard
BioCycle March/April 2014, Vol. 55, No. 3, p. 54

Anaerobic Digest
Rosendale Dairy's digesters in Pickett, Wisconsin

BioCycle October 2013, Vol. 54, No. 10, p. 12

Composters Defend Against Persistent Herbicides

To mitigate exposure, composting facility operators are modifying feedstock recipes and increasing use of plant bioassays of finished compost. Part II
Craig Coker
BioCycle August 2013, Vol. 54, No. 8, p. 21

Illinois Compost Manufacturer Controls The Elements
To better control the composting process, a ClearSpan fabric building was installed. The building accommodates four 450-foot long windrows.

LHF Compost, Inc. in Peoria processes yard trimmings, food waste and manure. Recently, it erected a fabric building, and does active composting under roof.
Nora Goldstein
BioCycle April 2013, Vol. 54, No. 4, p. 26

Composting Feedlot Manure
Manure is removed from the feedlot with a bucket loader and hauled to laydown yards adjacent to the individual lots. Windrows are formed approximately 14 to 16 feet wide at the base, and 5 to 6 feet tall.

Texas-based composter converts feedlot waste into organic fertilizers and soil amendments.
Randy Happel
BioCycle September 2012, Vol. 53, No. 9, p. 48

Farms, Vineyards And Groves Reap Compost’s Benefits
Compost is spread heavily to focus fertility for row crops on Gardens of Eagan farm in Eureka Township, Minnesota.

Water retention, disease suppression and improved soil health are just a few of the perks of amending agricultural soils with recycled organics.
Dan Sullivan
BioCycle August 2012, Vol. 53, No. 8, p. 33

Biomass Energy Outlook: Understanding Concentrated Manure
Mark Jenner

Mark Jenner
BioCycle July 2012, Vol. 53, No. 7, p. 45

Building Solutions For Composting, Anaerobic Digestion

From feedstock receiving and mixing to finished product storage, organics recycling facilities are investing in fully and partially enclosed structures.
Nora Goldstein
BioCycle June 2012, Vol. 53, No. 6, p. 30

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

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

Farm Digester Industry In America
Figure 1. Anaerobic Digester Projects 2000-2011

Growth in facility installations is steady, but lack of capital and antiquated energy policies remain obstacles to realizing the broad suite of benefits that manure-based digester systems could achieve.

Allison Costa and Chris Voell
BioCycle February 2012, Vol. 53, No. 2, p. 38

Dairy Digester Evolution In New York State
New York State dairy farm plug-flow digester

Cornell University has been involved with anaerobic digestion systems on dairy farms for almost 40 years. A member of its PRO-DAIRY team discusses the past, present and future of AD in the Empire State.

Nora Goldstein
BioCycle February 2012, Vol. 53, No. 2, p. 41

Dry Lot Dairy Manure To Energy
dairy manure samples measured for content

Dry lot dairies have replaced feedlots in New Mexico’s Pecos Valley. A recent study evaluated the feasibility of anaerobically digesting manure from these operations.

Diane Greer
BioCycle February 2012, Vol. 53, No. 2, p. 46

New Life For Texas Manure Digester Complex
Huckabay Ridge digesters

Huckabay Ridge was shuttered in 2010, but after the facility was purchased at a public auction, operations restarted in 2011.

Diane Greer
BioCycle February 2012, Vol. 53, No. 2, p. 49

Biomass Energy Outlook: Waste By Any Other Name May Still Be Waste
Mark Jenner

I have spent most of my professional life as a manure economist adding value to undervalued organics. For years I have preached and goaded folks not to use the word ‘waste.’ Six months ago I started moving away from that position, because moving waste materials back into the economy is progressing so slowly.

Mark Jenner
BioCycle February 2012, Vol. 53, No. 2, p. 53