Method for removing fluoroquinolones antibiotics in poultry and livestock excrement

Abstract

The invention discloses a method for removing fluoroquinolones antibiotics in poultry and livestock excrement. The method includes the steps of 1, preparing compost raw materials, wherein chicken excrement, sawdust, sterile distilled water and high-temperature-resistant fungicide are prepared into the compost raw materials, the mass ratio of the chicken excrement to the sawdust is 5-10 to 1, the water content of the compost raw materials ranges from 55% to 60%, and the high-temperature-resistant fungicide is cellulomonas flavigena; 2, carrying out high-temperature composting, wherein the pile overturning frequency is controlled to enable the compost temperature to range from 45 DEG C to 65 DEG C, and high-temperature fermentation is achieved; 3, carrying out intermediate-temperature composting, wherein after high-temperature fermentation, the manual pile overturning frequency is controlled to enable the temperature of a compost product to range from 30 DEG C to 45 DEG C, and intermediate-temperature fermentation is achieved. According to the method, the fluoroquinolones antibiotics in the poultry and livestock excrement are removed sufficiently through the degradation effect of high-temperature-resistant strains and relative microorganisms, and therefore the fluoroquinolones antibiotics in organic fertilizers are reduced to the safe level.

Description

technical field [0001] The invention relates to a method for removing antibiotics in organic manure of poultry manure, in particular to a method for removing six fluoroquinolone (FQs) antibiotics. Background technique [0002] Antibiotics are widely used in human medicine, livestock and poultry farming, aquaculture, etc. As animal growth promoters and therapeutic drugs, animal husbandry has become the industry that uses the largest amount of antibiotics. According to statistics, about 50% to 70% of antibiotics consumed each year are used in animal husbandry. After antibiotics enter the animal body, 40% to 90% enter the environment in the form of the mother or metabolites along with the manure of livestock and poultry. As early as 2007, some scholars investigated 143 livestock farms in 8 provinces of my country and found that the survey samples contained high levels of fluoroquinolone antibiotics, among which the concentration of enrofloxacin in pig manure and cow manure was...

AI Technical Summary

Problems solved by technology

At present, there is a small amount of research on the removal of antibiotics in water, such as ultrasonic degradation, artificial wetland, etc. Ultrasonic degradation is fast and has a wide range of applications, but its energy consumption is high, the cost is high, and the reaction conditions are difficult to control; the artificial wetland is low in cost. Easy to maintain but it occupies a large area and emits a foul smell

The research on fluoroquinolone antibiotics in poultry feces mainly stays in its detection and analysis methods, and there are few studies on their removal methods