Method for producing biochemical humate by microbially fermented furfural residues

A technology of microbial fermentation and humate, applied in the direction of fermentation, etc., to achieve good environmental protection effect, strong acidity, and the effect of solving pollution

Active Publication Date: 2012-06-27
黑龙江龙兴肥业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no report on extracting biochemica

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0020] Example 1:

[0021] a. adding the bottom wastewater produced by furfural in the furfural residue, and adjusting the water content of the furfural residue to 50%;

[0022] b. The carbon-nitrogen ratio C / N of furfural residue is adjusted to 25:1 with ammonium hydrogen sulfate and bran;

[0023] C. evenly mix BM bacteria powder into furfural residue, control the mass ratio of furfural residue and bacteria powder to be 2000:1, pile into fermentation tank, ferment for 75 days, control fermentation temperature not to exceed 60 ℃, after fermentation, The humic acid content in furfural residues increased by 78%.

[0024] d. adding the NaOH solution whose mass concentration is 4% to the furfural residue, the mass ratio of the fermentation furfural residue and the NaOH solution is 1:8, and it is left to stand at normal temperature;

[0025] e. In order to separate the slag liquid, carry out three-stage sedimentation, the first-level sedimentation is 24h, and the upper-layer liq...

Example Embodiment

[0026] Embodiment 2:

[0027] a. Add the bottom wastewater produced by furfural to the furfural residue, and adjust the water content of the furfural residue to 65%.

[0028] b. Use ammonium sulfate and bran to adjust the carbon to nitrogen ratio C / N of furfural residue to 27:1.

[0029] C. evenly mix EM bacteria powder into furfural residue, control the mass ratio of furfural residue and bacteria powder to be 8000:1, pile into fermentation tank, ferment for 90 days, control fermentation temperature not to exceed 60 ℃, after fermentation, The content of humic acid in furfural residue is increased by 150%.

[0030] d. Add KOH solution with a mass concentration of 3% to the furfural residue, the mass ratio of the fermented furfural residue to the KOH solution is 1:5, and let it stand at room temperature.

[0031] e. In order to separate the slag liquid, carry out three-stage sedimentation, the first-level sedimentation is 24h, and the upper-layer liquid is subjected to two-sta...

Example Embodiment

[0032] Embodiment three:

[0033] a. add the bottom wastewater produced by furfural in the furfural residue, and adjust the furfural residue moisture content to 60%;

[0034] b. Use urea and bran to adjust the carbon-nitrogen ratio (C / N) of furfural residue to 30:1;

[0035] C. HM bacteria powder is evenly mixed into furfural residue, the mass ratio of control furfural residue and bacteria powder is 20000:1, piled into fermentation pond, fermented for 60 days, controlled fermentation temperature was no more than 60 ℃, after fermentation, The humic acid content in furfural residue was increased by 95%;

[0036] d. Add 1% NH to the furfural residue 3 ??H 2 O solution, fermented furfural residue and NH 3 ??H 2 The mass ratio of the O solution is 1:10, and it is allowed to stand at room temperature;

[0037] e. In order to separate the slag liquid, carry out three-stage sedimentation, the first-level sedimentation is 24h, and the upper-layer liquid is subjected to two-stage ...

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PUM

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Abstract

The invention relates to a method for producing humate, particularly a method for producing biochemical humate by microbially fermented furfural residues, comprising the following steps: a, adding waste water from the bottom a tower of furfural production in furfural residues, and adjusting the water content of the furfural residues; b, using a nitrogen source and a carbon source to adjust the carbon-nitrogen ratio of the furfural residues; c, uniformly stirring in strain powder with the furfural residues, controlling the weight ratio of the furfural residues to the strain powder, piling into a fermenting tank, fermenting for 60-90 days, and controlling the fermentation temperature to no higher than 60 DEG C; d, adding an alkali liquor in the furfural residues, and standing at normal temperature; and e, carrying out three-level settlement to obtain a clear supernatant, drying the supernatant by a spray drier with a drying temperature of 60-70 DEG C to obtain the humate. The method is unique, can reduce environmental pollution, and raises the humic acid content in the furfural residues by microbial fermentation.

Description

technical field [0001] The invention relates to a method for producing biochemical humate, in particular to a method for producing biochemical humate by microbial fermentation of furfural residue. Background technique [0002] my country's furfural industry consumes 11-12 tons of corncobs to produce 1 ton of furfural, and discharges 10-11 tons of furfural slag, with a pH value of 2-3. It not only contains a certain amount of N, P, K, Zn, Mg, Fe and other elements, but also Contains a large amount of organic matter, the content can reach more than 90%, of which the humic acid content reaches 20%. At present, furfural slag from most domestic furfural plants is used as boiler fuel. Taking furfural with an annual output of 5,000 tons as an example, the annual output of furfural slag is 60,000 tons. In addition to burning 30,000 tons, there is still a large amount of furfural residue that is difficult to deal with, causing great pollution to the environment. [0003] In the 1990...

Claims

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Application Information

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IPC IPC(8): C12P1/00
Inventor 张晓忠靳毅刘旭宇杨志坚张茜
Owner 黑龙江龙兴肥业有限公司
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