This invention discloses a composite microbial preparation for
solid fecal degradation, its preparation method, and its application, belonging to the field of microbial preparation technology. The composite microbial preparation comprises a composite
microbial agent and an exogenous composite
enzyme preparation; the composite
microbial agent includes
laccase-producing
bacteria,
keratinase-producing
bacteria, auxiliary degradation
bacteria, and composite probiotics; the exogenous composite
enzyme preparation includes
cellulase,
neutral protease, and
xylanase. This invention employs a mixed strategy of "exogenous
enzyme + enzyme-producing bacteria," rapidly decomposing
cellulose,
protein, and
hemicellulose in the initial stage of composting by adding exogenous
cellulase,
protease, and
xylanase, providing readily available carbon and
nitrogen sources for the microorganisms, shortening the composting start-up time to less than 24 hours; simultaneously, the
laccase-producing bacteria and
keratinase-producing bacteria continuously produce
laccase and
keratinase during composting, achieving deep degradation of
lignin and
keratin. This invention has advantages such as rapid start-up, continuous degradation, good deodorization effect,
high nitrogen retention rate, and low cost, and has good prospects for industrial application.