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Method for producing biogas slurry fertilizer having advantages of no biogas slurry odor and high fertilizer efficiency

A production method and biogas slurry fertilizer technology are applied in the field of bio-organic fertilizers, which can solve problems such as low fertilizer efficiency and ecological pollution, and achieve the effects of excellent fertilizer efficiency, low cost, and easy popularization and use.

Active Publication Date: 2011-11-02
武汉华中农大资产经营有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of ecological pollution caused by irritating odor and low fertilizer efficiency when biogas slurry is applied to agricultural production, and to provide a method that removes irritating odor and has better fertilizer efficiency than general biogas slurry fertilizer with low cost and simple implementation. A biogas slurry fertilizer production method with mixed bacteria, no smell of biogas slurry and high fertilizer efficiency, which can be applied on a large scale and is easy to popularize

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment one: A biogas slurry fertilizer production method with no smell of biogas slurry and high fertilizer efficiency, the steps are:

[0024] A. Fresh biogas slurry loading: Take fresh biogas slurry from the biogas fermentation tank and put it into the fermentation device; fresh biogas slurry is taken from the biogas fermentation tank with normal gas production for more than 3 to 6 months; the fermentation device is an open fermentation container , is the cement fermentation tank;

[0025] B. Add waste molasses: Add waste molasses to fresh biogas slurry in proportion; the amount of waste molasses added to fresh biogas slurry is to add 1% to 15% (W / V) to fresh biogas slurry according to the mass volume ratio, and mix well. The waste molasses is purchased from a general sugar factory, and the amount of addition is selected according to the consistency of the waste molasses. In this embodiment, 10% (W / V) of mass volume is added to the fresh biogas slurry;

[0026]...

Embodiment 2

[0029] Embodiment two: The difference from Example 1 is: the fermentation device is an open bucket; the amount of waste molasses added is 15% (W / V) according to the mass volume ratio and added to the fresh biogas slurry; the bacillus is selected as Bacillus subtilis, and the inoculation density is 10 4 per mL; the fermentation temperature is 20°C, and the fermentation time is 6 days; the biogas slurry fertilizer with mixed bacteria obtained after fermentation is stored at a refrigeration temperature of 2°C to 8°C, and the validity period is selected as 11 months, and the optional range is 10 to 12 months.

Embodiment 3

[0030] Embodiment three: The difference from Example 1 is: the fermentation device is an open fermenter; the amount of waste molasses added is 1% (W / V) in the mass volume ratio and added to the fresh biogas slurry; the bacillus is selected as Bacillus subtilis, and the inoculation density is 10 6 Individual / mL; The fermentation temperature is 36°C, the fermentation time is 2 days, and it is stored at room temperature, and its validity period is 8 months.

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Abstract

The invention relates to a method for producing a biogas slurry fertilizer having the advantages of no biogas slurry odor and high fertilizer efficiency. The method provided by the invention comprises the following steps: A. charging fresh biogas slurry; B. adding waste molasses; C. inoculating a microorganism leavening agent and inoculating bacillus and photosynthetic bacteria according to the ratio to the fresh biogas slurry; D. shaking or stirring for aerobic fermentation; and E. storing after fermentation, wherein the biogas slurry fertilizer with mixing bacteria obtained after fermentation is stored at normal temperature or refrigeration temperature. The method provided by the invention has the advantages of simplicity in operation procedures, low cost, no pungent odor, high fertilizer efficiency and the like.

Description

technical field [0001] The invention relates to a biogas slurry fertilizer production method with no smell of biogas slurry and high fertilizer efficiency, and belongs to the technical field of biological organic fertilizers. Background technique [0002] Biogas fermentation is a ubiquitous phenomenon in nature that has existed for billions of years. The biogas slurry produced by anaerobic fermentation can be used as a raw material for agricultural production, partially replacing chemical fertilizers and pesticides. Biogas slurry is the residual liquid after biogas fermentation, mainly including organic and inorganic salts released during the fermentation process, such as ammonium salt, potassium salt, phosphate and other soluble substances, with a total solid content of less than 1%. Biogas slurry is not only rich in macronutrients such as nitrogen, phosphorus, and potassium, and micronutrients such as calcium, copper, iron, zinc, and manganese, but also rich in amino acid...

Claims

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Application Information

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IPC IPC(8): C05F15/00
Inventor 杨可梁运祥柯云陈正军赵述淼黄爱新吕恃衡
Owner 武汉华中农大资产经营有限公司
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