Transforming Livestock Manure into a Valuable Organic Fertilizer
A&V Consulting, LLC is introducing an advanced aerobic composting technology developed by Kohshin
Engineering Co., Ltd. (Japan). The technology has been implemented internationally for the treatment of livestock
manure and organic waste, helping producers convert manure into a stable, marketable organic fertilizer while
improving overall manure management.
How the Technology Works
Unlike conventional manure storage or passive composting methods, the Kohshin system uses a fully enclosed,
controlled aerobic fermentation process. Fresh manure is continuously mixed, aerated, and monitored under
carefully controlled conditions to promote rapid microbial decomposition.
The process is designed to:
Accelerate compost stabilization in approximately 24–30 days.
Reduce odors associated with manure handling.
Promote destruction of many weed seeds through sustained thermophilic composting conditions.
Reduce pathogen levels through controlled high-temperature aerobic composting.
Produce a uniform, mature compost suitable for use as an organic soil amendment or fertilizer, subject to
applicable regulatory requirements.
Why This Technology May Be Valuable for Iowa
Iowa is one of the nation’s leading livestock-producing states. As producers face increasing pressure to improve
nutrient management, reduce environmental impacts, and identify new revenue opportunities, advanced
composting technologies may provide an additional management option.
Potential benefits include:
Improved manure management efficiency.
Reduced odor during composting and storage.
Production of a value-added organic fertilizer from livestock manure.
Opportunities to participate in expanding organic and specialty agricultural markets.
Support for sustainable nutrient recycling on farms.
Why This Technology Is Different
The Kohshin system combines decades of engineering experience with an enclosed, controlled composting
process designed to produce a consistent end product. Rather than viewing manure solely as a waste
management issue, the technology is intended to help producers convert manure into a potentially marketable
agricultural product while improving operational efficiency.
Current U.S. Initiative
A&V Consulting is evaluating opportunities to introduce this technology to the United States through strategic
partnerships with universities, livestock producers, agricultural organizations, and industry leaders. Initial efforts are
focused on Florida, with Iowa identified as a key state because of its leadership in livestock agriculture, research,
and innovation.
We are seeking collaborators interested in evaluating the technology’s technical, economic, and commercial
potential under U.S. farming conditions.