Method of preparing all kinds of special fertilizers by removing heavy metals from sludge of sewage treatment plant to ferment

The invention discloses a method of preparing all kinds of special fertilizers by removing heavy metals from sludge of a sewage treatment plant to ferment. The method comprises the following steps of: removing the heavy metals from sludge slurry, dewatering, mixing bacterium and blending materials, fermenting and kill the bacterium, and all kinds of parasitic ova and pathogenic microorganisms through high-temperature mineralization reaction, and on the basis of preparation of an organic raw fertilizer, producing a microorganism organic fertilizer and special fertilizers for all kinds of crops through twice element coordination. The invention provides a feasible scheme for synchronously building a new sewage treatment plant or modifying an assorted sludge treatment facility of the conventional sewage treatment plant, so that the outward transportation cost for a large amount of sludge is saved, high-quality fertilizer products are produced, and the economic benefit is generated; the sludge is treated on the sp