Microorganism mixed culture for degrading kitchen wastes, method for producing microorganism mixed culture for degrading kitchen wastes and method for degrading wastes through utilizing culture

Abstract

The invention discloses a microorganism mixed culture for degrading kitchen wastes, a method for producing the microorganism mixed culture for degrading kitchen wastes and a method for degrading wastes through utilizing the culture. The mixed culture comprises at least two or a plurality of bacillus smithii, bacillus stearothermophilus spore and bacillus licheniformis; and the bacillus smithii accounts for 80-90% of the quantity of active viable bacteria in the mixed culture, the bacillus stearothermophilus spore accounts for 0-10% of the quantity of the active viable bacteria in the mixed culture, and the bacillus licheniformis accounts for 0-10% of the quantity of the active viable bacteria in the mixed culture. The method for degrading wastes through utilizing the culture comprises: wood chips which carry the culture are added into a container which is used for heating and is provided with a stirring device, so that the water content of the wood chips can reach 50-70%; the wood chips with the water content of 50-70% are put in the kitchen wastes to be stirred uniformly and heated to 40-80 DEG C, so that the kitchen wastes are degraded; and discharge is carried out after 24 hours. The mixed culture provided by the invention can effectively turn wastes which are mainly kitchen wastes into organic fertilizers.

Description

technical field [0001] The invention relates to the field of environmental protection, in particular to a microbial mixed strain for degrading kitchen waste, a preparation method thereof, and a method for using the mixed strain to degrade kitchen waste. Background technique [0002] Kitchen waste refers to the organic waste produced by humans in the process of ingesting food. If this kind of waste is not treated in time, it will pile up in large quantities, occupying urban space, and then slowly degrade in the natural cycle, producing foul-smelling gases and various toxic and harmful substances, seriously polluting the environment and endangering people's health. With the continuous growth of the population, the efficient disposal of kitchen waste has become a worldwide problem that needs to be solved urgently. The current methods of dealing with kitchen waste mainly include: [0003] 1. Incineration. Under good planning, the heat generated by incineration can be used to g...

AI Technical Summary

Problems solved by technology

[0003] 1. Incineration. Under good planning, the heat generated by incineration can be used to generate electricity or provide heating for residents. However, kitchen waste rich in oil and protein will produce a large amount of carbon dioxide, dioxins, and sulfur compounds during incineration. and other substances, which are harmful to the atmospheric environment

[0004] 2. Landfill. Centralized burial of kitchen waste and other domestic waste without distinction is the simplest and cheapest treatment method. However, with the expansion of the city and the increase in land costs, it becomes difficult to find suitable landfill sites.

At the same time, this method is likely to cause groundwater pollution and the prevalence of infectious diseases.

[0005] 3. Direct recycling, mainly used as feed. This is a traditional kitchen waste treatment method, mainly used for raising pigs, cattle and other livestock. This treatment method has many potential hazards to the environment, which can easily lead to spread of disease

[0006] 4. Composting is to convert kitchen waste into organic fertilizer through microbial degradation, thereby adding to the material and energy cycle of nature. However, traditional composting technology has problems such as long fermentation cycle, large space occupation, and low efficiency, so it is generally applicable In rural areas with low population density, it is rarely used in cities