Process for preparing bio-stimulant by utilizing swill

The invention belongs to the technical field of kitchen waste swill innocent treatment, and particularly relates to a process for preparing a bio-stimulant by utilizing swill. The process comprises the following steps: (1) separating solid impurities of collected kitchen swill, and removing the oil layer on the surface of the swill; centrifugally dehydrating the swill, and grinding the dehydrated swill precipitate for later use; (2) preparing a basic liquid of bio-stimulant for later use; (3) preparing a stock solution of the bio-stimulant; and (4) regulating the pH value of the prepared stock solution of the bio-stimulant in the step (3) to 5.0-5.5; and concentrating the stock solution of the bio-stimulant to 55-60 times to obtain the bio-stimulant. The process is mainly used in the field of wastewater treatment.