B: Oxygen is released.
C: Moisture is both contained and released.
D: Carbon Dioxide molecules escape.
E: Micro-organisms accelerate decomposition.
F: Heat is trapped.
G: Odor is contained.
Dr. Eliot Epstein developed the aerated static pile (ASP) technology at the US Department of Agriculture in 1968. Since then he has been involved in the planning and design of over 200 composting facilities. John Bouey worked with Eliot on the first biosolids composting pilot study in 1980 for the Central Valley Water Reclamation Facility in Salt Lake City, UT. The study showed that even raw biosolids could be successfully composted the kill virtually all pathogens. Today Eliot and John have taken the ASP composting technology one step further by adding a cover system. Now the piles can be aerated in the positive aeration mode eliminating the need for biofilters (odor control) and produce a Class A soil amendment product in less than six weeks.