Composting is the aerobic, or oxygen-requiring, decomposition of organic materials by microorganisms under controlled conditions. . . It is a means to conserve resources, preserve the environment, and create value.

(“The Composting Handbook,” 2022)

The importance of air in composting is undeniable. In the comprehensive 1,000-page Composting Handbook, terms related to air, aerobic conditions, and oxygen appear over 2,000 times—on average 2x per page— underscoring its significance. In contrast, odor is mentioned about 1,000 times—highlighting the strong link between aeration and odor control.

Air: The Key to Process and Odor Management

Effective odor control is vital for a successful composting facility—not just to comply with regulations, but also to gain community acceptance. Among the many factors influencing odor, aeration and leachate management play critical roles.

Proper oxygenation is essential to suppress odors. Oxygen supports the breakdown of organic matter, regulates temperature, and helps manage moisture, creating an efficient composting process with minimal odor. Additionally, maintaining adequate pore space within the compost matrix ensures effective drainage, preventing excess moisture buildup, which can contribute to foul smells. Dr. Epstein, a leading authority in composting, has emphasized the crucial role oxygen plays in organic matter decomposition.

Advancing Composting with Technology

One of the most effective innovations in composting technology is the Airfloor® system, designed and patented by Bioworks. This forced-aeration system prevents oxygen depletion, a primary cause of odor issues, prolonged processing times, and potential pathogen survival. By integrating aeration with leachate collection directly beneath the compost pile, Airfloor® simultaneously introduces oxygen and removes excess moisture. This dual-function system enhances process control, reduces odors, and accelerates composting.

Visualizing the Science Behind Airflow

Bioworks’ compost process graphic—also the inspiration behind the company’s trademarked bubbles logo—effectively illustrates the dynamic interactions between carbon, nutrients, air, and water throughout composting. The transformation of organic waste into high-quality compost is a result of scientific expertise, technological advancements, and operational best practices. By strategically managing air, moisture, and nutrients, composting remains an environmentally responsible and efficient solution for organic waste management.

In the end, it really is all about air.