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Method for biological fermentation of agricultural solid waste

A biological fermentation and solid waste technology, applied in the direction of microorganism-based methods, biochemical equipment and methods, fermentation, etc., can solve the problems of low utilization rate of agricultural solid waste, narrow sources of raw materials for biogas fermentation, and insufficient utilization of biogas residue and biogas slurry To achieve the effect of shortening the biogas fermentation time, accelerating the degradation reaction rate and maintaining high activity

Inactive Publication Date: 2017-12-29
柳州农投生态农业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method that can use agricultural solid waste for biogas fermentation and utilize biogas residue, biogas Agricultural solid waste biological fermentation method for preparing fertilizer from liquid

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A biological fermentation method for agricultural solid waste, comprising the following steps:

[0028] S1. The agricultural solid waste is crushed first, and the particle size of the crushing process is 5mm; then, it is stacked and retting, and sugar residue, yeast extract, anhydrous disodium hydrogen phosphate, diphosphate diphosphate are added to the agricultural solid waste Potassium Hydrogen, Sodium Chloride, Ammonium Chloride and microbial agent, stir the above materials evenly to obtain a mixed material, add water to adjust the water content of the mixed material to 50%, the time of the stack retting treatment is 10 days, every 2 days Stir once to obtain the stacked retting agricultural solid waste; wherein, by weight, the agricultural solid waste, sugar slag, yeast extract, anhydrous disodium hydrogen phosphate, potassium dihydrogen phosphate, sodium chloride, ammonium chloride and The weight ratio of the microbial inoculum is 1000:200:3:3:4:3:3:5, and the micro...

Embodiment 2

[0034] A biological fermentation method for agricultural solid waste, comprising the following steps:

[0035] S1. The agricultural solid waste is crushed first, and the particle size of the crushing process is 7mm; then, the retting process is carried out, and sugar residue, yeast extract, anhydrous disodium hydrogen phosphate, diphosphate diphosphate are added to the agricultural solid waste Potassium Hydrogen, Sodium Chloride, Ammonium Chloride and microbial agent, stir the above materials evenly to obtain a mixed material, add water to adjust the water content of the mixed material to 65%, the time of the stack retting treatment is 12 days, every 2 days Turn once to obtain heap retting agricultural solid waste. Wherein, by weight ratio, the weight ratio of described agricultural solid waste, sugar residue, yeast extract, anhydrous disodium hydrogen phosphate, potassium dihydrogen phosphate, sodium chloride, ammonium chloride and microbial bacterial agent is 1000: 220: 4: ...

Embodiment 3

[0041] A biological fermentation method for agricultural solid waste, comprising the following steps:

[0042] S1. The agricultural solid waste is crushed first, and the particle size of the crushing process is 9mm; then, the retting process is carried out, and sugar residue, yeast extract, anhydrous disodium hydrogen phosphate, diphosphate diphosphate are added to the agricultural solid waste Potassium Hydrogen, Sodium Chloride, Ammonium Chloride and microbial inoculum, stir the above materials evenly to obtain a mixed material, add water to adjust the water content of the mixed material to 75%, the time for the stacking treatment is 14 days, every 2 days Turn once to obtain heap retting agricultural solid waste. Wherein, by weight ratio, the weight ratio of described agricultural solid waste, sugar residue, yeast extract, anhydrous disodium hydrogen phosphate, potassium dihydrogen phosphate, sodium chloride, ammonium chloride and microbial bacterial agent is 1000: 240: 4.5:...

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Abstract

The invention relates to the technical field of biological fermentation, in particular to a method for biological fermentation of agricultural solid waste. The method includes steps: 1) subjecting the agricultural solid waste to crushing and composting treatment; 2) performing biogas fermentation; 3) filtering and separating biogas residues and biogas slurry; 4) subjecting the biogas slurry to secondary fermentation, and subjecting the biogas residues to ventilation treatment; 5) performing secondary filtration, separating out secondary fermentation liquid, preparing into biogas slurry fertilizers, and composting the biogas residues. By crushing treatment, the specific surface area of the agricultural solid waste is increased; by composting treatment, lignin and cellulose are degraded before biogas fermentation, biogas fermentation efficiency is improved. By fermentation treatment of the biogas residues and the biogas slurry, the directly usable fertilizers are obtained.

Description

【Technical field】 [0001] The invention relates to the technical field of biological fermentation, in particular to a biological fermentation method for agricultural solid waste. 【Background technique】 [0002] Biogas fermentation, also known as anaerobic digestion and anaerobic fermentation, refers to the process in which organic substances are decomposed and metabolized by various microorganisms under anaerobic conditions to finally form mixed flammable gases such as methane and carbon dioxide. Biogas fermentation generally goes through three stages: liquefaction stage, acid production stage, and methane production stage. In the liquefaction stage, microorganisms secrete extracellular enzymes, including cellulase, lipase, peptidase, etc., for enzymatic hydrolysis, and decompose macromolecular polysaccharides, fats, proteins, etc. into soluble small molecular compounds, that is, polysaccharides are decomposed into soluble monosaccharides and disaccharides, decompose protein...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/04C05F17/00C12P39/00C12P5/02C12R1/01C12R1/465C05G3/80
CPCC05B7/00C05F17/50C05G3/00C05G3/80C05G5/20C12P5/023C12P39/00C05C3/00C05D9/00C05F5/00C05F5/002C05F9/04C05F11/00C05F11/08Y02E50/30Y02W30/40
Inventor 何宏悉
Owner 柳州农投生态农业科技有限公司
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