- Snohomish, Washington
In 1992, I began my composting career at Bailand Farms in
Snohomish, Washignton. This was a hobby of sorts - an opportunity
to take what I had learned as a consultant working on municipal
composting projects and applying it to dairy manure. I built
turned windrow compost piles and after much time and effort,
I decided to experiment with Aerated Static Pile (ASP) Composting.
The picture shown here was my very first aerated compost pile,
comprised of scraped dairy manure mixed with horse manure
and bedding as a bulking agent. This pilot project was very
successful and ultimately led to what is now "Bailey
Compost", a green waste (90%) and dairy manure (10%)
Wickerink Dairy / Growell Potting
Mix – Duncan, B.C., Canada
300-head dairy herd
Jerry Wickerink utilizes composted dairy manure from his herd
as a component of his topsoil blends for his other business,
Growell Compost. Growell produces both bulk and bagged products
and is the best established brand in their area of Vancouver
Island, British Columbia. Their compost system was designed
with assistance provided by O2Compost and includes aeration
trenches constructed into the concrete base.
State University of New York
(SUNY) – Cobleskill, New York
While working in partnership with the Pennsylvania company
Integrity Nutrient Control Systems, O2Compost designed an
aerated compost system for SUNY Cobleskill to manage their
separated dairy manure. We are continuing to work on this
project, in association with Dr. Robert Rynk, to incorporate
horse manure / bedding from their equine studies department
along with food waste from dining halls around the campus.
Photo not available
Faith Dairy - Puyallup, Washington
Following a year of experimentation with aerated composting,
Terry Mensonides has developed a strong market for his dairy
manure compost and is exploring the possibility of developing
a cooperative with other dairies in Washington State to sell
compost that is produced on each of the participating farms.
Messick Dairy – Midland,
400-head dairy herd
Messick Dairy also utilizes an aerated composting system to
process separated dairy manure from their herd. In this system,
the solids are first composted in one of four active compost
bays for a period of three to four weeks. The material from
each bay is then transferred to an aerated curing and storage
bay for an additional three to four weeks. The finished product
is then screened and distributed to landscapers and nurseries
in a 20-mile radius of the farm.
Twin Oaks Dairy – Emmitsburg,
350-head dairy herd
Twin Oaks utilizes aerated composting to process separated
dairy manure from their 350-head herd of milk cows and heifers.
O2Compost provided design assistance to Integrity Nutrient
Control Systems of Chambersburg, PA for this project. The
dairy manure separator can be seen on the left side of this
photo, with an aerated static pile in Bay No. 2 to the right.
Composting is conducted in a building that incorporates air
distribution in the concrete floor. In addition to design
services, operator training and marketing assistance was also
provided by O2Compost. All of the compost being generated
is now sold to landscapers and homeowners within a 10-mile
radius of the dairy.
Virginia Tech – Blacksburg,
In 2004, Virginia Polytechnic Institute completed construction
on a new dairy sciences facility. This facility is utilized
for research purposes and serves as a state-of-the-art manure
handling equipment demonstration site. In support of the company
Integrity Nutrient Control Systems of Chambersburg, PA, O2Compost
provided comprehensive training to the VT staff and operators.
This is an aerated compost system that utilizes four high
pressure / high volume blowers operated independently by a
programmable logic controller. With this system, separated
dairy manure is stacked for approximately three weeks, giving
it time for excess liquids to drain from the fibrous solids.
The manure is then placed on a simple network of aeration
pipes and airflow is induced through the mix for approximately
With this operation, offensive odors have been controlled
(the compost building is located near one of the entrances
to the university and is subject to complaints when odors
are prevalent). The finished product is being used around
the university in landscaped areas and is land applied in
research corn fields. Plans also include marketing the finished
compost on a wholesale basis to private distributors in and
around Blacksburg, VA.