Covered Lagoon Digester
© Copyright 2013 RCM International, LLC, All Rights Reserved.
Design by: Djesley Paschoal
Dairy
Pigs
Beef
Manure and Food Waste
RCM's Covered Lagoon Digester produce biogas at ambient temperatures from diluted
manure with less than 2% solids. An impermeable cover covers the the top of the lagoon in
order to trap the biogas from escaping.  Biogas yield varies seasonally.
RCM's References
***Below are fully operational RCM's Complete Mix Digesters***
United States
By State
California
What Is It?
August 2004
Castelanelli Dairy, Lodi, CA
1,400 cows plus replacements,
180 kW generator
July 1995 - 1998
Cal Poly Dairy, San Luis Obispo, CA
Process design, 400 cow capacity
Covered lagoons are used for energy production in warm climates but are limited to odor
control in cold climates.  For detailed information, please click here or Contact Us.
Iowa
June 1998
ICF, Inc./AgSTAR, Boland Farm,
Williamsburg,  IA
2,700 nursery pigs, flare
Mississippi
September 1998
ICF, Inc./AgSTAR, Piney Woods
School,Rankin County, MS
120 pigs, flare
North Carolina
ICF, Inc./ AgSTAR,
Barham Farm, Zebulon, NC
4000 sows, farrow-wean, 120 kW, bldg. heat
Virginia
April 1997
Martin Hog Farm, S. Boston, VA
600 sow, farrow to feeder, flare
Chile
Winter 2004 -2005
Agricola Ltda., Santiago, Chile
18,000 sows farrow to wean, flare
July 2002
Agricola Ltda., Santiago, Chile
90,000 finish hogs, flare






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April 2003
Agricola Ltda., Santiago, Chile
20,000 sows farrow to feeder, flare






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Winter 2004-2005
Agricola Ltda., Santiago, Chile
13,500 sows farrow to wean flare
Ecuador
June 2008
Pronaca S.A. Santo Domingo, Ecuador
6,000 finisher pigs, gas skid, flare
LIVESTOCK
MANURE
BIOGAS
(MAINLY METHANE & CARBON DIOXIDE)
MANURE &
DIGESTION
BIOGAS
LIQUIDS & SOLIDS