Composting method for adding auxiliary materials to quickly remove tetracycline antibiotics in biogas residue

A technology of adding auxiliary materials and tetracyclines, which is applied in the preparation of organic fertilizers, organic fertilizers, and fertilization devices, etc., can solve the problems of low aerobic microbial flora and activity, difficulty in starting aerobic composting, and short maintenance time in high temperature periods. , to achieve the effect of shortening the composting cycle, shortening the composting time, and shortening the heating period

Inactive Publication Date: 2018-08-28
ACADEMY OF PLANNING & DESIGNING OF THE MINIST OF AGRI
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Problems solved by technology

At present, there are few technologies for aerobic composting to remove antibiotics in biogas residues. The nutrient content of biogas residues is low, the ratio of carbon and nitrogen is unreasonable, and the amount and activity of aerobic microbial flora are low, which makes it difficult to start aerobic composting. Use biogas residues alone Aerobic composting of materials has problems such as difficulty in heating up and short maintenance time in high temperature periods

Method used

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  • Composting method for adding auxiliary materials to quickly remove tetracycline antibiotics in biogas residue

Examples

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Embodiment 1

[0022] see figure 1 , a composting method for quickly removing tetracycline antibiotics in biogas residues by adding auxiliary materials, comprising the following steps:

[0023] Step 1: collect the solid-liquid mixture produced by the biogas project that uses chicken manure as the main fermentation raw material to obtain solid biogas residue through solid-liquid separation, with a moisture content of 62%; chop dry wheat straw with a moisture content of 10%, and chop The degree is 1–2cm; fresh pig manure is collected with a moisture content of 70%.

[0024] Step 2: Weigh 50% biogas residue by mass, 15% dry wheat stalks, and 10% fresh pig manure and stir, and continuously add 25% wood vinegar (diluted 500 times) and mix evenly to obtain mixture.

[0025] Step 3: Add 1.25% corn stalk biochar to the mixture, stir and mix again, put the mixture into an aerobic fermentation tank, supply air with a small blower, and aerate once every 45 minutes, and the ventilation time is 5 minut...

Embodiment 2

[0030] see figure 1 , a composting method for quickly removing tetracycline antibiotics in biogas residues by adding auxiliary materials, comprising the following steps:

[0031] Step 1: Collect the solid-liquid mixture produced by the biogas project that uses pig manure as the main fermentation raw material to obtain solid biogas residue through solid-liquid separation, with a moisture content of 65%; chop dry wheat straw with a moisture content of 10%, and chop it The degree is 1–2cm; fresh pig manure is collected with a moisture content of 70%.

[0032] Step 2: Take by weighing 50% biogas residue, 18% dry wheat stalks, and 12% fresh pig manure and stir, and continuously add 20% wood vinegar (diluted 500 times) and mix evenly to obtain mixture.

[0033] Step 3: Add 1% sawdust biochar to the mixture, stir and mix again, put the mixture in an aerobic fermentation tank, supply air with a small blower, blow and aerate once every 45 minutes, and the ventilation time is 5 minute...

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Abstract

The invention discloses a composting method for adding auxiliary materials to quickly remove tetracycline antibiotics in biogas residue. The composting method comprises the following steps: mixing biogas residue with fresh pig manure, wheat dry straws and wood vinegar which is diluted by 500 times according to parts by weight, evenly stirring to obtain mixture, adding charcoal into the mixture, and evenly mixing to obtain composting raw materials, wherein the dry substance ratio of the mixture to the charcoal is (80-100):1; putting the composting raw materials in an aerobic fermentation tank to be subjected to aerobic composting to obtain a composting product of which the antibiotics are removed. According to the composting method, the auxiliary materials can be added to shorten compost body warming time and prolong a high temperature phase, antibiotic degradation in a biogas residue composting process is accelerated, antibiotic residues in the composting product can be lowered, and the subsequent utilization risk of the biogas residues is lowered.

Description

technical field [0001] The invention relates to the technical field of agricultural environmental protection, and specifically relates to a composting method for quickly removing tetracycline antibiotics in biogas residues by adding auxiliary materials. Background technique [0002] In 2013, the total consumption of antibiotics in China reached 162,000 tons, of which 52% was used in livestock and poultry breeding. Most of these antibiotics are not directly absorbed by animals, and about 30%–90% are excreted with livestock and poultry feces in the form of original form and metabolites. If a large amount of feces is discharged into the environment without treatment, it will not only cause environmental pollution, but also the residual antibiotics will be absorbed by plants with the direct application of feces, and it will also lead to the proliferation of drug-resistant bacteria in the environment and induce antibiotic resistance. sex. Tetracycline antibiotics mainly include...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05F17/00
CPCC05D9/00C05F17/00C05G3/00C05F3/00C05F9/04C05F11/00Y02W30/40
Inventor 赵立欣王健孟海波沈玉君王玥伟
Owner ACADEMY OF PLANNING & DESIGNING OF THE MINIST OF AGRI
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