Method for utilizing biological enzyme pretreatment + potassium hydroxide alkaline process straw pulping to extract black liquor to produce potassium fulvic acid organic fertilizer

A potassium hydroxide alkali method and potassium humate technology, applied in the field of papermaking, can solve problems such as unclear, unspecific, and difficult to implement, and achieve the effects of reducing waste liquid discharge, less moisture, and reducing sewage treatment costs.

Inactive Publication Date: 2017-05-24
宁夏同创秸科生物科技有限公司
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Problems solved by technology

"Method of Producing Fertilizer Using Potassium Hydroxide Alkaline Papermaking Black Liquor" (patent application number: 03122742.2), although it talks about the use of potassium hydroxide alkali method to produce fertilizers from papermaking pulping black liquor, but the mentioned raw materials and preparation The process is too broad, not specific and clear, and it is difficult to implement it in actual operation

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  • Method for utilizing biological enzyme pretreatment + potassium hydroxide alkaline process straw pulping to extract black liquor to produce potassium fulvic acid organic fertilizer
  • Method for utilizing biological enzyme pretreatment + potassium hydroxide alkaline process straw pulping to extract black liquor to produce potassium fulvic acid organic fertilizer

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Embodiment Construction

[0040] The specific embodiment of the technical scheme of the present invention is three parts: bio-enzyme pretreatment straw extraction black liquor, potassium hydroxide alkali pulping black liquor extraction and potassium fulvic acid organic fertilizer finished product production:

[0041] 1. Bioenzyme pretreatment of black liquor extracted from rice straw

[0042] 1.1 Wet preparation:

[0043] The straw purchased from the farmers is used, transported to the grass cutter and cut into 15-30mm long pieces, after being dedusted by the claw dust collector, it is washed by a drum washing machine and a hydraulic grass washing machine with a belt conveyor, and then dehydrated. next process.

[0044] 1.2 Bio-enzyme pretreatment of straw to extract black liquor:

[0045] The washed and dehydrated rice straw pieces prepared by the wet method are transported to the biological enzyme pretreatment bin by the belt conveyor, and the washed rice straw is subjected to biological enzyme pre...

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Abstract

The invention relates to a method for utilizing biological enzyme pretreatment + potassium hydroxide alkaline process straw pulping to extract black liquor to produce a potassium fulvic acid organic fertilizer and belongs to the field of organic fertilizer production. The method for producing the organic fertilizer comprises black liquor extraction after biological enzyme pretreatment, black liquor extraction after potassium hydroxide alkaline process straw cooking and production of the finished potassium fulvic acid organic fertilizer. According to the method, waste is turned into wealth, the novel biological enzyme pretreatment technology is utilized to extract the natural bioactive substance - fulvic acid which is very high in chemical activity and biological activity from the straw. Besides, inorganic nutrient such as nitrogen, potassium, calcium, magnesium, sulfur and silicon in straw stalk is reserved.

Description

technical field [0001] The invention belongs to the extension of the technical field of papermaking and extends to the field of agricultural production of organic fertilizers, and specifically relates to a method for extracting potassium fulvic acid organic fertilizer from black liquor produced in the process of biological enzyme pretreatment + potassium hydroxide alkali method for pulping rice straw method. Background technique [0002] At present, the cooking of paper mills generally uses the reaction process of chemical dissolution and lignin removal. The general chemical pulping not only needs to use various chemicals, but also has high cost and high energy consumption. If the black pulp produced If the liquid is directly discharged into the sewage treatment plant, the cost of sewage treatment will be greatly increased. [0003] Fertilizer is a direct or indirect supplier of nutrients needed for crop growth, and has the function of improving soil properties and improvin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F7/00C05G3/00C05G3/04D21C1/06D21C5/00D21C7/00C05G3/80
CPCC05F7/00C05G3/00C05G3/80D21C1/06D21C5/005D21C7/00Y02A40/20
Inventor 刘海斌张东红杨发学李世杰
Owner 宁夏同创秸科生物科技有限公司
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