"In-vessel composting" is done by feeding organic materials into a drum, silo, tunnel or similar structure where temperatures, moisture and aeration are controlled and the materials are mechanically agitated while the composting process takes place. In-vessel composting requires less space for operating than traditional outdoor windrow/pile composting, is not disrupted by weather changes, eliminates odor issues, eliminates liquid rill-off from composting site, reducing fire danger and greatly accelerates the composting process. The BW process is simple. BW Organics in-vessel composters are rotating drums, made out of one-quarter inch thick steel pipe. Unit sizes have ranged from small 4 foot diameter/8 foot long models to 10 foot diameter 50 foot long models. Units are loaded at one end from a conveyor belt attached to a mixer/hopper. The mixer/hopper is loaded with a mix of waste product and a bulking agent (wood chips, sawdust, corn stoved, hay, etc.) B W units compost the mixture in 72 hours. During the aerobic composting process, temperatures inside the drum are at least 1300 Fahrenheit. An electric motor (1/6 HP to 5 HP) and gear box underneath drum rotate it gently from side to side during the composting process. At the end of the process, a conveyor belt feeds the compost from the drum into trailers of trucks, for delivery to users.

Our composters are sturdy and repair and maintenance costs are minimal. Units placed in the field ten years ago still function perfectly. There are no moving parts inside of the rotating drums where most of the work is going on. We believe that it can introduce significant savings in the manufacturing process by (a) buying its steel pipe in bulk, and (b) designing a drum consisting of three-foot long steel pipe segments fastened together by external bolts, thereby allowing the composters to be more easily and cheaply shipped and more easily and cheaply installed at customers sites.


Compost can be used in lieu of chemical fertilizers to greatly increase crop production and at the same time help retain moisture in the soil. It has the potential of being used on arid land to grow crops in areas not currently useful for farming. The potential market is world-wide for both the in-vessel equipment and the compost. The equipment has been tested and recommended by many notable persons on the staffs of prestigious agricultural colleges and universities.
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