Horse Manure Composting
Aerated Static Pile Composting
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With true aerated static pile composting, the raw material can
be placed over a simple network of pipe instead of being confined
to a structure. Generally, each pile consists of approximately 1-month's
worth of manure. While one pile is actively composting, a second
1-month pile is constructed in an adjoining area. As with aerated
bay composting, the pile of raw material is covered with a layer
of finished compost, however this layer is applied as the pile is
being constructed. There are several approaches for removing the
compost from on top of the pipes so that the pipes can be reused.
The advantages to this approach to composting are that it is: 1)
simple and inexpensive to construct; 2) easily accessible from two
sides; and 2) easily expanded. The primary disadvantage is that
the piles are exposed to the elements making it more susceptible
to leachate (contaminated water) runoff. In addition, working out
in the open can be a daunting challenge in cold, rainy and windy
climates.
Extended Aerated Static Pile Composting
Extended ASP Systems are seldom used with horse manure composting,
however, for the sake of completing this discussion on aerated composting
systems we have provided the following summary:
An EASP compost system is constructed by placing a new (i.e., individual)
aerated static pile directly on the flank of the preceding pile,
thereby producing a progressively longer flat topped pile. With
EASP composting, multiple blowers are often used with each blower
controlling the airflow into its aeration zone. With this approach,
very large individual piles can be constructed to produce a batch
flow-through process. Alternatively, the "old" end of
the pile can be removed while new material is added to opposite
end of the pile, resulting in a true flow-through process.
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