14—Lancaster Farming, Saturday. July 28. 1973 "Fill 'er Up" (Continued From Page 13) the six-week period needed for complete digestion of the organic wastes. Experimental data show 10 cubic feet of methane can be generated from two-to-three pounds of dry animal waste. It has about two-thirds of the calorific value (BTU’s per cubic foot) of natural gas. Although the first gas from their digester was used to light a gas mantle, it can also be used for heating, lighting, or to fuel farm machinery. The old refrigerator compressor proved to be quite suiutable to force the methane gas into a storage tank which could be mounted on a garden tractor. Subsequently, it was not difficult to design a carburator adapter to run the tractor which Bair uses to mow his lawn. “We hope we have done a lot of the ground work so that some enterprising farmer attending Ag Progress Days will pick up where we leave off and really adapt the idea,” Bair says. “Farmers are radiator no water no water no anti-freeze no Deutzdoesit (SAY DOYTZ) with its air-cooled diesel engine And because it's air-cooled. power . no carbon build-up or smoke. Come see this world-renowned tractor in action Then compare! Tnactoi very enterprising people,” Miller adds. “We are sure the idea will be picked up and improved upon -- and that is our whole purpose.” In addition to the fuel benefit, research indicates that the residue which remains after gas production has a slightly higher nitrogen content than does the raw waste. Ton for ton it has greater value to crops. But Dr. Harter cautions, “Most U. S. researchers claim that the economics of converting agricultural wastes into useable fuel at present is a highly marginal endeavor at best. The additional capital and labor costs involved do not now seem to be offset by the value of the fuel produced. However, as the price of fuel increases and as en vironmental costs are calculated into the equation - for particular sizes of farm enterprises methane production should some day reach a competitive position, he adds. “And many professionals already believe that cheaper methods of con version can be found.” pump hoses your Deutz tractor can run 100° hotter—provide complete fuel combustion. You get more mileage, more Call Us For Free Demonstration of any Size Tractor 32 to 130 H.P. Stauffer Diesel, Inc. 312 W. Main St. New Holland, Pa. 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