Two of the biggest issues faced by commercial composting operators are emissions (odor and VOCs) and moisture management. Odors and Volatile Organic Compound (VOC) emissions from compost facilities can be highly variable and are influenced by factors such as composting technology, feedstock mix, and operational parameters (initial grind, porosity, saturation, aeration, etc.). Moisture management issues are also complex, ranging from the moisture in the compost to managing the leachate and stormwater runoff, and are also influenced by feedstock mix and many of the same operational parameters.<\/p>\n
\nAcross North America, the clock is ticking on how we manage organic waste. Landfills are filling faster, emissions targets are tightening, and communities are being challenged to do more with less. The solution isn\u2019t in bigger buildings or more complex machinery \u2014 it\u2019s in smarter, cleaner, and more efficient composting systems.<\/p>\n
As communities, states, and providences prepare for ambitious organics diversion goals; the spotlight is on innovative composting. Aerated Static Pile (ASP) systems, enhanced with highly engineered membrane covers, are revolutionizing the future of SSO composting.<\/p>\n
Reducing the amount of organic waste sent to landfills by rolling out source separated organics (SSO) collection services to metropolitan households and businesses is a key waste diversion goal for many municipalities, states and providences in North America and elsewhere. With growing urgency, communities are facing mounting pressure to adopt scalable, reliable composting technologies for SSO.<\/p>\n
Scott Woods, Founder and Chief Executive Officer of Sustainable Generation, explains that constructing large buildings with biofilters, to house composting operations are capital intensive, breeds complexity, and increase operational costs. In contrast, aerated static pile (ASP) composting has emerged as a practical, cost-effective, and high-performing solution<\/p>\n
\nASP composting relies on forced aeration to maintain aerobic conditions and optimize biological activity. There are two primary methods: negative aeration, which uses simple timed motors to pull air through the pile and exhaust through a biofilter; and positive aeration with temperature feedback. Developed in the 1980s, this method pushes air into the pile and uses real-time temperature monitoring to regulate blower activity, improving process consistency. Both approaches typically require a biolayer cap \u2013 6 inches or more of woodchips or finished compost \u2013 to manage odors and retain heat. Scott says this traditional approach adds operational complexity and does not always deliver consistent results. The latest evolution in ASP systems involves highly engineered membrane covers that are semi-permeable, waterproof, and breathable. \u201cThese advanced systems offer in-vessel performance without the cost and complexity of enclosed facilities, consistently outperforming basic biolayer cap systems when evaluated on a true apples-to-apples basis,\u201d he says.\n<\/p>\n\n\t\t