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Method for preparing biodegradable oil residue fertilizer

A technology of biodegradation and oil residue, applied in the direction of organic fertilizer, fertilizer form, fertilizer mixture, etc., can solve the problems of difficulty in crushing, hard dry oil residue, affecting fertilizer effect, etc., and achieve a good effect of increasing production

Inactive Publication Date: 2010-10-20
SHANDONG GUANGDA FERTILIZER INDAL TECHCO
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AI Technical Summary

Problems solved by technology

This patent treats the oil residue as an ordinary organic matter for fermentation. The existing problems are that the dry oil residue is hard and difficult to crush; the second is that the conventional fermentation method is easy to completely decompose a large amount of protein in the oil residue, and cannot stay in the amino acid state, which affects the fertilizer effect.

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  • Method for preparing biodegradable oil residue fertilizer

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preparation example Construction

[0008] A method for preparing a biodegradable oil residue fertilizer, comprising four fermentation liquids of Bacillus subtilis fermentation liquid, Yarrowia lipolytica fermentation liquid, Geotrichum candidum fermentation liquid and Lactobacillus plantarum fermentation liquid, characterized in that,

[0009] (1) The four strains of fermentation broth were respectively selected from the China Industrial Microorganism Culture Collection and Management Center. (Geotrichum candidum) No. 31418, Lactobacillus plantarum (Lactobacillus plantarum) No. 6026;

[0010] (2) According to parts by mass, get 100~150 parts of Bacillus subtilis fermented liquid, 100~150 parts of Yarrowia lipolytica fermented liquid and add in 1000 parts of oil residue, adjust water content 45~55wt%, pH 6.5~7.0, fully Mix well, control the temperature of the material at 35°C-40°C, and let it stand for 6-8 hours; pass in steam, and count when the temperature rises to 100°C, and keep it for 25-35 minutes.

[001...

specific Embodiment approach

[0035] The present invention will be further described below in conjunction with the examples, but not limited thereto.

[0036] Oil residue is the residue left after oil production by Shandong Everbright Sun Moon Co., Ltd., including soybean oil residue, peanut oil residue, cottonseed oil residue or rapeseed oil residue.

[0037]The strains used in the examples are: Bacillus Subtilis (Bacillus Subtilis) China Industrial Microorganism Preservation Management Center strain catalog number 10210, Yarrowia lipolytica (Yarrowia lipolytica) China Industrial Microorganism Preservation Management Center strain catalog number 1444, Baidi Mold (Geotrichum candidum) China Industrial Microbiology Collection Management Center strain catalog number 31418, Lactobacillus plantarum (Lactobacillus plantarum) China Industrial Microbiology Collection Management Center strain catalog number 6026, purchased from China Industrial Microbiology Culture Collection Management Center.

[0038] The amount...

Embodiment 1

[0040] (1) Preparation of Bacillus subtilis fermentation liquid

[0041] Take 200 grams of peeled potatoes, add 1000 grams of water and boil for 20 minutes, filter with gauze, add water to the filtrate to 1000 grams, then add 15 grams of glucose and 2 grams of peptone, heat until all ingredients are dissolved, and sterilize at 0.11 MPa for 30 minutes , prepared into a liquid medium, and the activated Bacillus subtilis and Yarrowia lipolytica were cultured for 2 days in a shaking flask at 28°C and 180 rpm; kg, 8 kg of glucose, 30 kg of oil residue, and 1000 kg of water in a fermenter, cultivated for 4 days at 28°C to obtain a Bacillus subtilis fermentation liquid.

[0042] (2) The preparation method of the Yarrowia lipolytica fermentation liquid is the same as that of the Bacillus subtilis fermentation liquid, except that the Yarrowia lipolytica strain is inserted.

[0043] (3) Take 150 kg of Bacillus subtilis fermentation liquid and 100 kg of Yarrowia lipolytica fermentation ...

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Abstract

The invention relates to a method for preparing a biodegradable oil residue fertilizer, which comprises the following steps of: degrading grease in oil residue by using microbial fermentation liquor of bacillus subtilis and microbial fermentation liquor of Yarrowia lipolytica; performing high-temperature treatment at normal pressure on the oil residue of which the grease is degraded; and decomposing proteins in the oil residue by using protease generated by microbial fermentation liquor of geotrichum candidum and microbial fermentation liquor of lactobacillus plantarum so as to generate various amino acids and bioactive substances favorable for crop growth. The method has the advantages of short time for treating the oil residue, reducing environmental pollution, and fully utilizing specific nitrogen nutrition of the oil residue; and the prepared fertilizer has obvious yield increasing effect through field experiments.

Description

technical field [0001] The invention relates to a method for producing fertilizer by using the by-product oil residue of an oil mill through biodegradation, and belongs to the technical field of fertilizer production. Background technique [0002] my country is a country with a large population, and it is also a country dominated by cooking and food culture. Therefore, my country's vegetable oil consumption is considerable. According to incomplete statistics, there are currently more than 1,000 vegetable oil mills in my country, with an annual output of more than 20 million tons of vegetable oil. At the beginning of this century, my country's vegetable oil production process is mainly based on leaching, and the by-products of this process are a large number of oil feet and soap feet. There was a small amount of reports on the comprehensive utilization of these by-products at that time, as the patent document CN100412180C (200410050605.8) discloses a method for producing fa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F11/08C05G5/00
Inventor 姜兴民李涛张诚孙应胜李大刚
Owner SHANDONG GUANGDA FERTILIZER INDAL TECHCO
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