Compound microbial agent for degrading antibiotic and pesticide residues as well as preparation and application thereof

Abstract

The invention relates to a compound microbial agent for degrading antibiotic and pesticide residues as well as preparation and application thereof, and belongs to the field of biotechnology and environmental protection. Multi-thallus compound microbial powder is prepared from the compound microbial agent according to the weight percentage of living microbes to the total amount of compound microbial powder as follows: 10%-15% of bacillus subtilis, 10%-15% of aspergillus niger, 10%-15% of bacillus mucilaginosus, 10%-15% of enterococcus faecalis, 8%-12% of bacillus licheniformis, 8%-12% of bacillus megaterium, 8%-12% of pseudomonas fluorescens, 5%-8% of lactobacillus plantarum, 5%-8% of bacillus polymyxin and 6%-8% of streptococcus thermophiles. The compound microbial agent has the effects of degrading antibiotic and pesticide residues, fermenting and composting organic matter, acting as functional fertilizer and repairing the environment, and can solve the problems of secondary pollution caused by antibiotic residues in culture feces and resource utilization of organic waste and realizes biodegradation of the antibiotic and pesticide residues in soil when applied to the agricultural ecological environment, thereby being of great value and practical significance in restoration of agricultural ecological environment and protection of human health.

Description

technical field [0001] The invention belongs to the field of biotechnology and environmental protection, and relates to biological fermentation treatment of breeding excrement pollution and resource utilization of organic waste, microbial degradation of antibiotics and pesticide residues for restoration of agricultural ecological environment, and in particular to a composite microorganism that degrades antibiotics and pesticide residues Bacteria and its preparation and application. Background technique [0002] With the large-scale and industrialization of the breeding industry in our country, animal diseases frequently occur in the breeding process. In order to prevent and control animal diseases, various chemical drugs, vaccines, antibiotics, etc. Some drugs are excreted through feces and urine, and high concentrations of antibacterial drug residues are formed in feces and urine. [0003] According to the existing aquaculture manure treatment technology, there are two way...

AI Technical Summary

Problems solved by technology

[0003] According to the existing aquaculture manure treatment technology, there are two ways to deal with livestock and poultry manure and excrement: the first is natural composting and fermentation to form compost. The disadvantages of this method are long cycle, serious environmental pollution and fertilizer efficiency. Low, easy to form secondary pollution; the second method is to inoculate the microbial starter into the excrement, ferment and decompose it to make organic fertilizer

Although the second treatment method can achieve organic matter returning to the field through decomposing and deodorizing, the antibiotics and other chemicals remaining in the organic matter have not been decomposed. The organic fertilizer obtained in this way has not been degraded after being applied to the farmland. Chemical drug residues will still destroy the balance of beneficial microbial colonies in the soil, weakening the ability of plants to resist pests and diseases, and are potential threats and pollution in the agricultural ecological environment

These two types of compound microbial agents only act on the fermentation and decomposing function of organic matter, microbial nitrogen fixation, phosphorus dissolution, potassium dissolution and partial biological control effects, and are effective on chemical drugs and antibiotic residues in livestock and poultry manure and agricultural ecological environment. Pesticide residues in the can not be degraded

According to the existing preparation technology and product efficacy of agricultural microbial agents, there are obvious technical defects, that is, it cannot solve the residual pollution of pesticides and antibiotics in the agricultural ecological environment

At present, the long-term excessive use of chemical fertilizers and pesticides has caused the imbalance of soil beneficial microbial communities, soil compaction, weakened soil sustainable fertilizer supply capacity, high incidence of diseases and insect pests, and the carrying capacity of the agricultural ecological environment has reached its limit. Therefore, ecological restoration and construction of new ecological balance