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Method for improving degradation rate of antibiotics in livestock and poultry manure

A technology of livestock manure and antibiotics, applied in the field of environmental pollution remediation, can solve problems such as loss

Active Publication Date: 2021-08-27
NORTHEAST NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the existing compost products contain a large amount of ammonia nitrogen, and ammonia nitrogen is the main form of N loss, accounting for 79-94% of the total nitrogen loss

Method used

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  • Method for improving degradation rate of antibiotics in livestock and poultry manure
  • Method for improving degradation rate of antibiotics in livestock and poultry manure
  • Method for improving degradation rate of antibiotics in livestock and poultry manure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Example 1 Effect of conditioning agents and compost on antibiotic degradation effects in deer dung

[0037] Experimental material

[0038] The compost material is straw and deer. The deer was taken from a pluma farm in Jilin Province, fully considering the uniformity of the sampling area, and the five-point sampling method is sampled and thoroughly mixed. Remove impurities such as bricks, stones. Straw takes from a farmland in Jilin Province, severely 1-2cm length after air drying. Bioyfine is purchased from an Ecological Energy Co., Ltd., natural zeolite (AR) is purchased from a industrial zone, grinds 1-5 mm fine particles. Compost of the raw materials, total organic carbon (TOC), total nitrogen (TN), and carbon nitrogen ratio (C / N) are shown in Table 1.

[0039] Table 1 Basic physical and chemical properties of compost materials

[0040]

[0041] In order to ensure the experiment is accurate, tetracycline antibiotics are added to deer dung. Adjusts the tetracycline i...

Embodiment 2

[0081] Example 2 Effect of agents on microbial community deer manure composting embodiment

[0082] Dominant strain compost and compost cooling of the dominant strain and temperature of the high temperature phase is significantly different. Dominant strain of compost temperature and high-temperature phase are mainly bacteria Psychrobacter, Tuicibacter, Glutamicibacter and fungi Botryotrichum, Aspergillus, Mucor. Cooling becomes dominant strain of the bacteria Luteimonas, Pseudomonas, Chryseolinea and fungi Mycothermus, Thermomyces. Biochar and zeolite bacterial community structure changes as conditioning agents. Affect the relative abundance of certain microorganisms in the high temperature range, such as fungi Mucor. Microbial community structure changes while influenced by environmental factors. Conditioner cooling reduces the relative abundance of microorganisms.

Embodiment 3

[0083] Example 3 Effect of agents on deer dung tetracyclines residues and compost phytotoxicity embodiment Maturity

[0084] The use of low-quality compost will cause harm to the soil and plants, and produce environmental risks, and therefore prior to administration, must be assessed maturity and quality compost. Seed germination index (Germination Index, GI) is to determine the toxicity of the plant and compost maturity of compost products most commonly used, one of the most sensitive biological indicators. Therefore, by measuring the change in GI during composting, may be combined maturity Evaluation composting physicochemical properties. A pot experiment was to verify the transfer of tetracycline antibiotics feces Compost soil and plants. After the deer manure composting degradation of tetracycline antibiotic products were evaluated.

[0085] Experimental material

[0086] No. 3 fast-growing Brassica seed available from the company Sheng Yiqi; D36 compost sample; Soil In a camp...

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Abstract

The invention discloses a method for improving the degradation rate of antibiotics in livestock and poultry manure, which comprises the following steps: adding a conditioner into the livestock and poultry manure, and composting; wherein the conditioner comprises biochar and zeolite, and the mass ratio of the biochar to the zeolite is (1-2): (1-2), the adding amount of the conditioner is 10-25% of the total mass of the compost material. According to the invention, biochar and zeolite are used as the conditioner, and through the basic physicochemical properties of a compost body and the change rules of tetracycline (TC), aureomycin (CTC) and oxytetracycline (OTC) as tetracycline antibiotics in the compost body in the deer manure-straw composting process, related mechanisms are analyzed from the change of a microbial community structure; the results show that the addition of the composting conditioner has influences on the basic physicochemical indexes of the compost, the degradation of the tetracycline antibiotics and the microbial community structure, can obviously improve the degradation of the tetracycline antibiotics in the composting process, can influence the form of nitrogen at the end of composting, and reduces the nitrogen loss.

Description

Technical field [0001] The present invention relates to the field of environmental pollution repair, in particular to a method of increasing antibiotic degradation rates in poultry. Background technique [0002] At present, there are a large number of tetracycline antibiotics every year for animal husbandry. However, many antibiotics are not fully absorbed and metabolized in the animal, resulting in high activity at the time of excretion. Animal feces produced by animal husbandry did not have sufficient pretreatment. They often use them to use the farm fields, and their biodegradation is insufficient, resulting in elevated antibiotic residual concentrations in the soil, which contains plant toxic components, which can cause environmental damage. These residues were released into the agricultural soil after administration of livestock, and further transported to ground water and groundwater. It can affect the structure and function of natural microbial communities and may promote ...

Claims

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Application Information

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IPC IPC(8): C05F17/80C05G1/00
CPCC05F17/80C05D9/00C05F3/00C05F11/00Y02W30/40
Inventor 徐建玲王汉席冯佳音刘学军孙寄添卢月
Owner NORTHEAST NORMAL UNIVERSITY
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