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Method for producing fulvic acids fertilizer by using alkaline process black liquor

A technology of alkaline pulping and fulvic acid, applied in the direction of organic fertilizer, sewage/sludge fertilizer, application, etc., can solve the problems of small application range of fertilizer, low content of fulvic acid, high production cost, etc., and achieve economic benefits Considerable, no secondary pollution, low one-time investment effect

Active Publication Date: 2008-07-02
吉林泉德秸秆综合利用有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, the main raw material for the production of fulvic acid by using microorganisms is agricultural and forestry organic waste, such as the Chinese patent application number CN02124265, the sweet sorghum straw is crushed and added to potassium dihydrogen phosphate, calcium carbonate, urea or ammonia water, and the Aspergillus niger strain is inserted , active yeast, nitrogen-fixing bacteria, potassium bacteria, phosphorus bacteria and other strains to obtain fulvic acid compound bacterial fertilizer after two fermentations; the Chinese patent application number is CN98114617, with wood chips as auxiliary materials, oil, starch or molasses, Fertilizer, protein, growth factors and water are used as raw materials, and sodium fulvic acid is produced through auxiliary material fermentation → batching → fermentation → water immersion → pressing → adsorption → desorption; but the above patents have high production costs, small application range and fertilizer Disadvantages such as low fulvic acid content

Method used

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  • Method for producing fulvic acids fertilizer by using alkaline process black liquor
  • Method for producing fulvic acids fertilizer by using alkaline process black liquor
  • Method for producing fulvic acids fertilizer by using alkaline process black liquor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] Put the potato dextrose agar medium inoculated with Bacillus licheniformis AS.1.518 into the fermenter for fermentation, the temperature is controlled at 28°C, the ratio of aeration volume to liquid volume is 0.5, the stirring speed is 150 rpm, and the fermentation time is 24 hours , to obtain the strain liquid, which contains 1.5 billion strains per milliliter.

[0065] Cool the black liquor from wheatgrass soda pulping to 40°C in a cooling pool whose length, width and height are 5m, 5m, and 3m respectively, and mix the returned sludge and fresh black liquor at a weight ratio of 8:1. The pH of the liquid is 9.6, and 0.1‰ of diammonium phosphate is added at the same time, and it is passed into the UASB-100 reactor manufactured by Jinan Lufa Environmental Protection Technology Co., Ltd., and the black liquor volume 1 / 35 of Bacillus licheniformis AS.1.518 is added to the UASB reactor When the pH of the system drops to 8.0, the black liquor that has completed the biochemic...

Embodiment 2

[0067] Put the potato comprehensive medium inoculated with Bacillus licheniformis AS1.932, AS.1.518 and Bacillus cereus CFCC1007 into the fermenter for fermentation, the temperature is controlled at 31°C, the ratio of aeration rate to liquid volume is 1.0, and the stirring speed is 250 rev / min, the fermentation time is 36 hours, and the strain liquid is obtained, which contains 2.5 billion strains per milliliter.

[0068] Cool the soda pulping black liquor to 38°C in a cooling pool with a length, width, and height of 5m, 5m, and 3m respectively, and mix the return sludge and fresh black liquor at a weight ratio of 10:1. After mixing, The pH of the black liquor is 10.0, and 15‰ of urea is added at the same time, and it is passed into the UASB-100UASB reactor manufactured by Jinan Lufa Environmental Protection Technology Co., Ltd., and the black liquor volume 1 / 40 of Bacillus licheniformis AS1.932, For the seed solution of AS.1.518 and Bacillus cereus CFCC1007, when the pH of th...

Embodiment 3

[0070] The potato yeast extract medium inoculated with Bacillus licheniformis IFFI10020 and Bacillus pumilus AS1.594 was put into a fermenter for fermentation, the temperature was controlled at 30°C, the ratio of ventilation rate to liquid volume was 0.8, and the stirring speed was 200 rpm. The fermentation time is 32 hours, and the strain liquid is obtained, which contains 2.25 billion strains per milliliter.

[0071] After cooling the cotton stalk alkaline pulping black liquor to 39°C in a cooling pool with a length, width, and height of 5m, 5m, and 3m respectively, mix the return sludge and fresh black liquor at a weight ratio of 5:1, and mix The pH of the final black liquor is 9.0, and 10‰ of phosphate rock powder is added at the same time, and passed into the UASB-100UASB generator manufactured by Jinan Lufa Environmental Protection Technology Co., Ltd., and the black liquor volume 1 / 38 of Bacillus licheniformis IFFI10020 is added to the UASB reactor and the strain soluti...

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Abstract

The invention discloses a preparation method and the products of a fulvic acid fertilizer, pertaining to the organic fertilizer field. The organic fertilizer adopts an alkaline pulping black liquid as material, and is made by cooling, biochemical treatment, evaporation and concentration, and guniting and granulation. The manufactured organic fertilizers have high fulvic acid content, apparent soil improvement and fertility functions, and comprehensive and uniform nutritional components of the organic fertilizer, and have dramatic effects on improving the quality of crops and yield capacity, long fertilizer effect time, strong late effect, no pollution, and the drought resistance, disease resistance and insect resistance can be enhanced after the organic fertilizer is used.

Description

technical field [0001] The invention relates to a biological treatment technology for alkaline pulping black liquor, mainly a method for treating alkaline pulping black liquor and a fertilizer production method by using microorganisms. Background technique [0002] The process of treating plant fiber raw materials with alkaline aqueous solution to make pulp is called alkaline pulping. After alkaline pulping, about 50% of the fiber raw materials and most of the alkaline substances are dissolved in the cooking liquor and become black liquor. The pollutants of papermaking black liquor account for about 90% of the total pollutants in papermaking wastewater. If the black liquor is not effectively treated and directly discharged to zero, it will not only seriously pollute the environment, but also cause a lot of waste of resources. Therefore, the key to solving the pollution discharge of the paper industry lies in the thorough and effective treatment of black liquor. [0003] Bl...

Claims

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Application Information

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IPC IPC(8): C05F7/02
CPCY02W30/40
Inventor 李洪法曹光春宋明信杨吉慧郭良进李晓光
Owner 吉林泉德秸秆综合利用有限公司
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