Agrilab Technologies, Inc. – Heat from Compost
Compost Powered Heat
About the Company:
Agrilab Technologies, Inc. (AGT) is a Vermont-based company with a patented compost aeration and heat recovery technology that has been successfully used on livestock farms since 2006. The team provides design, development, installation and operating support services to complement its line of modular equipment. The products and services save farms labor, space, and energy while reducing odors and producing compost products. The company’s clients included dairy farms, commercial and municipal composters, and institutions.
About the Solution:
Agrilab Technologies Inc. standard products include the Drum Dragon, Hot Skid, Hot Box and AerSkid units. This technology incorporates aeration to accelerate the composting process for manure, bedding, forest residuals, food scraps and other biomass. AGT equipment is modular to meet a range of scales and applications. On-site and remote data acquisition and automated controls reduce labor, optimize the composting process and end-product quality while specialized heat exchangers recover thermal energy for facility heating, material drying and process water demands. Vapor recirculation features extend wintertime operations, enable material drying and management of multiple compost batches.
Solution Strengths, Weaknesses and Critical Indicators
- Requires manure fiber moisture content <80%
- Volume reduction of 30 to 50% typical
- Produces a stable, odor free product with market value
- Requires significant space and time to create highest product value
- Different technologies and approaches result in a wide range of compost characteristics
AgriLab Technologies offers an intriguing option for capturing heat, carbon dioxide and ammonia from an aerated static compost pile to provide to an onsite greenhouse. This technology could be used with an existing greenhouse or composting operation. There are several of these systems currently operating on dairies in Vermont.
Newtrient completed a review of this technology in late 2021. The data from one commercial installation at Vermont Natural Ag Products, Inc. (VNAP), a subsidiary of the Foster Brothers Farm, Inc. in Middlebury, Vermont, is available on this page as an Expert Evaluation it is the final report for a USDA NRCS Conservation Innovation Grant. The sampling and analysis of laboratory results was done by the University of Vermont as part of this grant.
1. OPERATIONAL HISTORY