Complex microbial inoculant for reducing ammonia emission in composting process and application thereof

Abstract

The invention discloses a complex microbial inoculant for reducing ammonia emission in a composting process and an application thereof, and belongs to the field of the environmental protection. The complex microbial inoculant comprises candida utilis, bacillus subtilis, and bacillus stearothermophilus. The freeze-dried powder mass ratio of the candida utilis, bacillus subtilis, and bacillus stearothermophilus is 1-2:1:1. The complex microbial inoculant is compounded by three strains, and is capable of effectively reducing the ammonia emission in a composting body, wherein the ammonia emissionreduction is up to 53.1%, so the nitrogen loss of the composting body is reduced, the compost quality is improved, the environmental pollution is reduced, and the service life of a composting device is prolonged.

Description

technical field [0001] The invention belongs to the field of environmental protection, and in particular relates to a composite microbial agent for reducing ammonia gas discharge in a composting process and an application thereof. Background technique [0002] At present, the main ways to reduce ammonia emission in composting are adding physical adsorbents, chemical additives, changing the carbon-nitrogen ratio of compost itself, and adding single bacteria. However, the adsorption capacity of physical adsorbents varies greatly, which leads to unstable adsorption effects; chemical additives are easy to cause secondary pollution and the cost is high; changing the carbon-nitrogen ratio of compost has limited effect on reducing ammonia emissions, and an excessively high carbon-nitrogen ratio will cause The growth of microorganisms is slow, the decomposition of organic matter is slow, and the compost fermentation time is longer; the addition of single bacteria has little impact o...

AI Technical Summary

Problems solved by technology

However, the adsorption capacity of physical adsorbents varies greatly, which leads to unstable adsorption effects; chemical additives are easy to cause secondary pollution and the cost is high; changing the carbon-nitrogen ratio of compost has limited effect on reducing ammonia emissions, and an excessively high carbon-nitrogen ratio will cause Slow growth of microorganisms, slow decomposition of organic matter, and longer compost fermentation time; adding single bacteria has little impact on the ecology of compost indigenous flora, and the effect of reducing ammonia emissions is unstable