Functional microbial agent for treating livestock and poultry breeding wastewater and method for preparing functional microbial agent

Abstract

The invention relates to the field of wastewater treatment, and particularly discloses a functional microbial agent for treating livestock and poultry breeding wastewater and a method for preparing the functional microbial agent. According to the scheme, the functional microbial agent and the method have the advantages that ammonia and nitrogen in the livestock and poultry breeding wastewater can be effectively decomposed and transformed by aerobic denitrifying bacteria in the functional microbial agent, and accordingly the contents of the ammonia and the nitrogen in the livestock and poultry breeding wastewater can be reduced to a great extent; synergistic effects can be realized by saccharomycetes, bacillus, lactic acid bacteria and photosynthetic bacteria, COD (chemical oxygen demand) in the livestock and poultry breeding wastewater can be decomposed by different levels, and a large quantity of COD in the livestock and poultry breeding wastewater can be effectively and quickly degraded; the COD, the ammonia and the nitrogen in the livestock and poultry breeding wastewater can be effectively reduced by the functional microbial agent.

Description

technical field [0001] The invention belongs to the field of wastewater treatment, and in particular relates to a functional bacterial agent for treating livestock and poultry breeding wastewater. Background technique [0002] With the improvement of people's living standards, my country's livestock and poultry breeding industry has developed rapidly. Because livestock and poultry have a low absorption and utilization rate of the protein feed they are fed, 50-70% of the nitrogen and phosphorus in the feed are excreted with feces and urine, so the feces contain a large amount of nitrogen and phosphorus compounds; if the livestock and poultry breeding wastewater Directly discharged into nature, nitrogen and phosphorus compounds in livestock and poultry wastewater are converted into nitrates and phosphates, causing excessive algae growth and soil compaction in the water, causing serious harm to the water environment and soil; it is easy to cause water pollution, human Drinking...

AI Technical Summary

Problems solved by technology

According to statistics, at least 90 hectares of land are needed to consume the waste water produced by a pig farm with 10,000 live pigs. However, my country is a country with a large population and little land. The land-returning model for treating livestock and poultry waste water is very limited, and it is not properly treated. It will also cause the expansion of pollution sources

②The ecological treatment mode adopts artificial wetlands, stabilizing ponds, etc., and uses the joint action between microorganisms and plants to treat. This mode has many advantages, but its disadvantages are also obvious, such as large area, seasonal and temperature changes. The treatment effect has a great influence. If it is not treated properly, it will cause the release of pollutants and form new pollution.

However, the bioreactor treatment mode has problems such as high cost and difficult control.

[0005] When the livestock and poultry wastewater is treated in the field-returning mode or the ecological treatment mode is constructed wetlands, stabilization ponds, etc., due to the extremely high COD and ammonia nitrogen in the livestock and poultry wastewater, it is difficult for the corresponding fields or wetlands to achieve self-efficacy. The effect of degradation can easily lead to the expansion of pollution sources and damage to fields or wetlands; at the same time, when bioreactors are used to treat livestock and poultry breeding wastewater with high COD and ammonia nitrogen, the cost is extremely high, and the effect achieved is average

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