Who is using the Solvita Compost test?
The Solvita Compost Maturity Test is used by many compost facilities and soil amendment producers in North America and abroad.
Montgomery County Yard Trim Composting Facility in MD
Montgomery County Yard Trim Composting Facility, (MCYTCF) is a large composting facility that receives on average 70,000+ tons a year of leaves and grass from a county that represents approximately one million single-family home, multifamily dwellings and business establishments. It is for this reason that their composting process must not only be thorough but also efficient and where Solvita’s compost maturity test has become an integral part of this process.
“After a Solvita carbon dioxide (CO2) reading of at least 6 is achieved, the material is considered ready for consolidation into large piles in the field for curing. After curing, compost is moved under a 2-acre pavilion, where it is allowed to fully mature. The pavilion keeps the material dry, and consolidation also makes room at the site for the next cycle’s incoming material. Curing is considered complete after all compost exhibits at least a 7 on the Solvita CO2 scale (and 5 on the ammonia scale), and there is no odor that could concern buyers. If the same parameters are already met while the material is still in windrows, that compost may be screened directly”.
Rhode Island Resource Recovery Corporation
Initially, RIRRC relied on visual inspection to determine when a windrow is cured and ready to be moved for screening. The visual inspection was not a reliable method due to the subjectivity of color discrimination.
By adding the use of a Digital Color Reader to Solvita’s Compost Maturity Test, RIRRC has improved the scale of readability. The process is no longer subjective. Using the maturity test provides a better method and rapid interpretation of determining when a windrow is cured and when it can be moved off the pad for screening. This provides a consistent process for assuring compost is stable and ready for sale to their customers.
Their Class A Rhode Island Compost is approved for use in certified organic crop production. To read full article go to Biocycle.