Method and apparatus for making organic fertilizer

Claim 1

THE METHOD OF MAKING FORTIFIED ORGANIC FERTILIZER BY THE DECOMPOSITION OF MOIST ORGANIC MATERIAL THROUGH THE PROPAGATION OF AEROBIC BACTERIA WHICH COMPRISES MIXING CRUSHED ROCK WITH ORGANIC MATERIAL, FORCING AIR UNDER PRESSURE THROUGH AN ENCLOSED MASS OF SUCH MATERIAL, ALL OF SAID AIR BEING INTRODUCED INTO THE MASS FROM THE BOTTOM THEREOF, WITHDRAWING SPENT AIR WHICH HAS PASSED THROUGH THE MASS AND GASES INCLUDING CARBON DIOXIDE GAS GENERATED WITHIN THE MASS AT VERTICALLY SPACED INTERVALS THROUGHOUT THE MASS, AND CONTROLLING THE WITHDRAWAL OF SAID AIR AND GASES AT SAID VERTICALLY SPACED INTERVALS TO MAINTAIN A PROGRESSIVELY INCREASING CONCENTRATION OF CARBON DIOXIDE FROM THE BOTTOM TOWARD THE TOP OF THE TANK, THE CARBON DIOXIDE CONTENT BEING MAINTAINED AT NOT LESS THAN 7% WITHIN AN UPPER SECTION OF THE TANK COMPRISING NOT LESS THAN ONE THIRD OF THE VOLUME OF THE TANK.