Environment-friendly catalyst prepared from livestock and poultry manure as well as synthesis method and application of environment-friendly catalyst

The invention relates to the technical field of waste recycling, and discloses a synthesis method and application of an environment-friendly catalyst prepared from livestock and poultry manure, and the synthesis method is characterized by mainly comprising the following steps: S1, calcining the livestock and poultry manure subjected to excessive moisture drying treatment in a 25% oxygen atmosphere to form a precursor; s2, soaking a certain amount of the precursor in a hydrochloric acid impregnation liquid, adding deionized water and a copper element, uniformly stirring, adjusting the pH value of the system by using stronger ammonia water, transferring into a water bath, stirring, and evaporating to dryness; and S3, placing the evaporated system in a 25% oxygen atmosphere, calcining-annealing again, alternately washing with deionized water and absolute ethyl alcohol, and drying to obtain the target catalyst. According to the environment-friendly catalyst prepared from the livestock and poultry manure, the wast