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Method for preparing fertilizer by using amino acid production waste liquid

A kind of technology for preparing fertilizer and amino acid

Active Publication Date: 2019-05-24
内蒙古阜丰生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The applicant's previous patented technology "a process for preparing organic-inorganic compound fertilizer by using bio-fermented amino acid wastewater" applied waste liquid to fertilizer preparation, solved the problem of waste liquid treatment, and prepared fertilizer, but this technology still exists Certain deficiencies, such as inability to efficiently utilize bacterial proteins, use of concentrated evaporation steps to waste energy, etc.
[0003] The development and application of fertilizers in my country is from farmyard manure to the use of inorganic fertilizers as the main stage. Because farmyard manure has many pollution sources and large transportation volume, it is time-consuming and laborious to operate and the effect is not particularly obvious; while inorganic fertilizer has a single component and a relatively low utilization rate. Low, and often cause soil compaction and soil erosion to pollute water sources, affecting the ecological environment
At present, inorganic compound fertilizers containing nitrogen, phosphorus and potassium are mostly used in the market. The compound fertilizer has comprehensive fertilizer effects, but there are also defects such as short-lasting fertilizer effects and easy loss; more importantly, the current price of compound fertilizers is relatively high, which brings great harm to farmers. How to reduce fertilizer costs and increase farmers' income is a technical problem that modern agriculture needs to solve

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The method for preparing fertilizer by utilizing amino acid production waste liquid, it comprises the steps:

[0028] Step 1) filtering, step 2) hydrolyzing bacterial protein, step 3) preparing fertilizer component A, step 4) preparing fertilizer component B, and step 5) preparing fertilizer.

[0029] Specifically, the method includes the steps of:

[0030] Step 1) Filtration: use microbial fermentation to obtain a fermented liquid, filter the fermented liquid, collect bacterial protein and filtrate, use the filtrate to extract amino acids, and use the waste water generated during the extraction process for standby;

[0031] Step 2) Hydrolyze bacterial protein: Dry the bacterial protein, pulverize it into dry protein powder, then put it in the reaction tank, add 5 mol / L hydrochloric acid of the same quality as the dry protein powder, subject to the raw material being submerged, in the Stir and hydrolyze at 60°C for 24 hours at a stirring speed of 300 rpm. After the rea...

Embodiment 2

[0040] The method for preparing fertilizer by utilizing amino acid production waste liquid, it comprises the steps:

[0041] Step 1) filtering, step 2) hydrolyzing bacterial protein, step 3) preparing fertilizer component A, step 4) preparing fertilizer component B, and step 5) preparing fertilizer.

[0042] Specifically, the method includes the steps of:

[0043] Step 1) Filtration: use microbial fermentation to obtain a fermented liquid, filter the fermented liquid, collect bacterial protein and filtrate, use the filtrate to extract amino acids, and use the waste water generated during the extraction process for standby;

[0044] Step 2) Hydrolyze bacterial protein: Dry the bacterial protein, pulverize it into dry protein powder, then put it in the reaction tank, add 5 mol / L hydrochloric acid of the same quality as the dry protein powder, subject to the raw material being submerged, in the Stir and hydrolyze at 60°C for 24 hours at a stirring speed of 300 rpm. After the rea...

Embodiment 3

[0053] The field test effect of the biological bacterial fertilizer prepared in Example 2 of the present invention: take wheat as an example.

[0054] Control group: common compound fertilizer (N, P, K content 15:14:12);

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PUM

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Abstract

The invention belongs to the technical field of fertilizers and discloses a method of preparing a fertilizer by using amino acid production wastewater, comprising the steps of 1), filtering; 2), hydrolyzing bacterial proteins; 3), preparing fertilizer component A; 4), preparing fertilizer component B; 5), preparing the fertilizer. In connection with microbial technologies, the method makes effective use of amino acid production wastewater and serves two purposes by single act.

Description

technical field [0001] The invention belongs to the technical field of fertilizers, and in particular relates to a method for preparing fertilizers from amino acid production waste liquid. Background technique [0002] At present, bio-fermentation enterprises produce a large amount of waste liquid in the process of fermentation and production of various amino acids, because the fermentation amino acid waste liquid contains COD, SO 4 2- and NH 3 -High N content and strong acidity, etc. In addition, the waste liquid also contains a large amount of bacterial protein, reducing sugar, and ammonia nitrogen. If it is discharged indiscriminately, it will not only cause serious environmental pollution, but also waste valuable resources. If the waste liquid is processed, the investment is huge, and it does not meet the requirements of circular economy development. The comprehensive utilization of amino acid waste liquid produced by fermentation has important strategic significance ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G1/00C05F17/00
CPCC05B7/00C05F17/00C05B17/00C05C11/00C05D9/00C05F1/005C05F5/002C05F5/006C05F11/00C05F11/08Y02W30/40
Inventor 许传娟王均成杜鹏李晓永刘苏宜孙成菊
Owner 内蒙古阜丰生物科技有限公司
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