Aerated static pile (ASP) composting is a commercial approach that uses a network of pipes and blowers to push or pull air through a large pile, so the material does not need to be physically turned.
How it works
Organic waste is mixed with a bulking agent for airflow and placed over an aeration system. The EPA notes ASP can produce compost relatively quickly and works well for larger, more uniform volumes.
Pros and cons
It is efficient and reduces labor compared to turning, but it needs specialized equipment and careful management, making it a facility-scale method.