This pilot test demonstrated that high-quality compost, defined
as exceeding EPA regulatory requirements and suitable for unrestricted
use, can be produced using the windrow method for naturel
casings treatment. Additive composting materials supply and
processing, site preparation, and initial setup required a significant
effort, but once the compost pile had been constructed, the day-today
monitoring requirements were minimal (1 to 2 person-hours
per day).
After some early complaints from neighbors during the initial
mixing process and transport from the facility to the composting
site, odors were successfully controlled using straw and wood chip
cover.
No runoff was observed during the active composting phase.
However, water was added to maintain optimal moisture content.
During wetter weather, the compost pile may require tarping to
control runoff if operations are not covered or enclosed in a building.
Careful management of moisture is recommended at curing
phase completion so that the compost stays dry enough for
screening.
To evaluate the feasibility of managing natural casing through a
full-scale composting operation, we recommend study of amendment
requirements, end use, and capital and operational costs.