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A kind of method that utilizes glutamic acid waste water to produce liquid fertilizer

A technology of liquid fertilizer and glutamic acid, which is applied in the direction of sewage/sludge fertilizer, organic fertilizer, fertilizer mixture, etc., can solve the problems of not particularly obvious effect, single component of inorganic fertilizer, and high price, so as to lock nutrients and control loss, The effect of delaying the release of nutrients and the simple and feasible preparation method

Active Publication Date: 2016-05-25
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

[0004] The development and application of fertilizers in my country is the main stage from farmyard manure to the use of inorganic fertilizers. Because farmyard manure has many pollution sources and a large amount of transportation, 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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  • A kind of method that utilizes glutamic acid waste water to produce liquid fertilizer
  • A kind of method that utilizes glutamic acid waste water to produce liquid fertilizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A method utilizing glutamic acid waste water to produce liquid fertilizer, it comprises the steps:

[0026] Step 1) Filtration of fermentation broth: the glutamic acid fermentation broth is sterilized by microfiltration membrane filtration, and the retentate and filtrate are collected respectively; The retentate and concentrated liquid are combined into feed liquid A for later use; among them, the microfiltration membrane is an inorganic ceramic membrane with a molecular weight cut-off of 2000MW and a microfiltration temperature of 40°C; the ultrafiltration membrane has a molecular weight cut-off of 300MW and an ultrafiltration temperature of 40°C;

[0027] Step 2) Decolorization, concentration and crystallization: The permeate obtained in step (1) is pumped into the decolorization tank for decolorization treatment, and 0.5% activated carbon of the permeate mass is added to the decolorization tank, and the temperature in the decolorization tank is controlled at 45°C. Aft...

Embodiment 2

[0032] A method utilizing glutamic acid waste water to produce liquid fertilizer, it comprises the steps:

[0033] Step 1) Filtration of fermentation broth: the glutamic acid fermentation broth is sterilized by microfiltration membrane filtration, and the retentate and filtrate are collected respectively; The retentate and concentrated liquid are combined into feed liquid A for later use; among them, the microfiltration membrane is an inorganic ceramic membrane with a molecular weight cut-off of 2000MW and a microfiltration temperature of 40°C; the ultrafiltration membrane has a molecular weight cut-off of 300MW and an ultrafiltration temperature of 40°C;

[0034] Step 2) Decolorization, concentration and crystallization: The permeate obtained in step (1) is pumped into the decolorization tank for decolorization treatment, and 0.5% activated carbon of the permeate mass is added to the decolorization tank, and the temperature in the decolorization tank is controlled at 45°C. Aft...

Embodiment 3

[0039] Fertilizer effect test of fertilizer of the present invention

[0040] 1. Take tomato as an example:

[0041] Effect of the liquid fertilizer prepared in Example 1 of the present invention on tomato yield and quality. The test group additionally sprays the preparation of the present invention, and the matched group is sprayed with equal amount of clear water. The tomato variety is ginkgo strong, 100kg per mu of land, and the two groups of other planting conditions are identical. The results are shown in Table 1. The application of this product can increase tomato yield, shorten the time to market, enhance tomato disease resistance, improve fruit quality, and increase the economic value of tomato fruit.

[0042] Table 1

[0043]

[0044] 2. Take cucumber as an example:

[0045] Effect of the liquid fertilizer of Example 1 of the present invention on cucumber yield and quality. The variety of cucumber tested in the spring greenhouse was Jinchun No. 3, which was cul...

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Abstract

The invention belongs to the field of amino acid fermentation wastewater treatment, and discloses a method for producing liquid fertilizer by utilizing glutamic acid wastewater, comprising the following steps: step 1) filtration of fermentation broth, step 2) decolorization, concentration and crystallization, and step 3) separation of ammonium sulfate crystals, step 4) hydrolysis, and step 5) preparation of fertilizer. The method uses glutenic acid fermentation waste water, greatly reduces fertilizer production cost, realizes turning waste into wealth, and the fertilizer effect is better than similar products in the market.

Description

technical field [0001] The invention belongs to the field of amino acid fermentation waste water treatment, and in particular relates to a method for producing liquid fertilizer by utilizing glutamic acid waste water. Background technique [0002] Glutamic acid is an acidic amino acid. The molecule contains two carboxyl groups, and its chemical name is α-aminoglutaric acid. Glutamic acid was discovered by Li Suxun in 1856. It is a colorless crystal with umami taste. It exists in a large amount in cereal protein, and the content in animal brain is also high. Glutamic acid plays an important role in the protein metabolism process in organisms, and participates in many important chemical reactions in animals, plants and microorganisms. Sodium glutamate, commonly known as monosodium glutamate, is an important umami agent that enhances the fragrance. Sodium glutamate is widely used as a food flavoring agent, either alone or in combination with other amino acids. It is used in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/00C01C1/24
CPCC05B17/00C05F7/00C05G3/80C05C9/00C05C11/00C05F11/02
Inventor 张传森卢松包鑫梁晓娟朱心双徐彩凤邵风慧
Owner 内蒙古阜丰生物科技有限公司
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