| 摘要 |
<p>A process for disposal of organic waste containing large quantities of fat or oil. A sample of the waste is decomposed in soil containing ample quantities of nutrients required for decomposition, specifically nitrogen and phosphorus. Resulting test data indicates how much nutrient material is required for decomposition, and how much, and when, nutrient material is released to the soil after decomposition. The waste is then incorporated into soil in a field, and nutrients are applied to induce a rapid decomposition phase in which soil organisms absorb and immobilize the applied nutrients to decompose the waste and a subsequent mineralization phase in which the soil organisms release nutrients to the soil. A crop is appropriately selected and planted to begin absorbing significant quantities of soil available nutrients during the mineralization phase. The amount of applied nutrient material corresponds to crop growth requirements plus waste decomposition requirements less nutrients released during the mineralization phase, effectively reducing nutrient requirements for rapid waste decomposition. Soil organisms and crop growth tend to immobilize soil available nutrients through the process, and no soil available nutrients remain after completion of the process. Leaching of nutrients to groundwater is minimized.</p> |
