The invention relates to a
sludge composting method and
organic fertilizer. The
sludge composting method comprises the steps that
sludge,
mushroom dregs and wood blocks serve as raw materials, and after the sludge, the
mushroom dregs and the wood blocks are mixed,
pile bodies are formed; the
pile bodies are piled in a gore membrane, composite microbial
enzyme fermented liquid is added, thus a stack is prepared, the surface of the stack is covered with the gore membrane, and the stack is placed in a ventilation
oxygen-supplying environment to be subjected to aerobic
fermentation; and after
fermentation is conducted for 3-4 weeks, discharging and aging are conducted to obtain a coarse
fertilizer product, sterilizing, dehydrating, air pumping for
odor removing,
drying and sieving are conducted sequentially, and thus the
organic fertilizer with the uniform particle size is prepared. The sludge composting method is small in occupied space and easy to popularize, the problem that existing municipal sludge cannot be subjected to efficient harmless treatment and disposal is solved, the sludge composting
fermentation rate is effectively increased, the pressure of treating the municipal sludge is effectively reduced, the production efficiency of converting
organic solid waste into the
organic fertilizer is improved, meanwhile, secondary
pollution of traditional
incineration or sludge landfill to the environment can be reduced, and good
environmental protection significance is achieved.