Organic containing sludge to fertilizer alkaline conversion process

摘要

This invention is directed to systems, devices and methods for treating organic-containing sludges and converting such sludges to high value fertilizers containing both inorganic and organic fertilizer components, which creates an inorganically-augmented bioorganic fertilizer. The invention describes methods to create a thixotropic or paste-like material via the application of mixing energy to the organic sludge followed by an alkaline treatment and a subsequent ammoniation. The invention further describes a method to increase the plant nutrient content in the organic containing product to a level which permits the finished granular fertilizer product to compete in the commercial agricultural fertilizer marketplace. Further, the invention reduces odors associated with said organic-containing sludges.

主权项

1. An inorganically-enhanced, bioorganic fertilizer with reduced bioorganic odor, comprising:
dried granules of one or more organic materials containing disinfected biosolids and a nutrient mixture; wherein the dried granules have a dryness of greater than 90%, and are coated with a material to reduce dust formation; wherein the fertilizer contains no active pathogens and organisms, and odors have been substantially reduced or eliminated during processing with the nutrient mixture; wherein the nutrient mixture is comprised of nitrogen and one or more of calcium, phosphorous, potassium, sulfur, or iron; and wherein the nutrient mixture is reacted with chemical components of the organic materials such that the fertilizer does not require further modification or supplementation before use.