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Agricultural utilization method of edible oil refining waste liquid, organic fertilizer and application

A technology for organic fertilizers and edible oils, which is applied in the fields of organic fertilizers and fertilizers made from biological wastes, applications, etc., can solve the problems of high concentration of organic matter, high biochemical properties, and large oil content in wastewater.

Pending Publication Date: 2021-12-17
ANHUI AGRICULTURAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In view of the deficiencies in the prior art, the purpose of the present invention is to provide an agricultural utilization method, organic fertilizer and application of edible oil refining waste liquid. High problem, and only through the use of fermentation equipment and oil extraction equipment to achieve the treatment of edible oil refining waste liquid, and realize the secondary utilization of edible oil refining waste liquid

Method used

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  • Agricultural utilization method of edible oil refining waste liquid, organic fertilizer and application
  • Agricultural utilization method of edible oil refining waste liquid, organic fertilizer and application

Examples

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Effect test

Embodiment 1

[0027] A method for agricultural utilization of edible oil refining waste liquid, comprising the following steps:

[0028] (1) mixing the edible oil refining waste liquid with the acidic waste water, and adjusting the pH to 7.0 to obtain the treated waste liquid;

[0029] (2) Add the treated waste liquid in step (1) to the rapeseed meal to obtain the mixture and separate the waste liquid, then use the countercurrent spray method to remove the oil from the mixture, and use acetone as the eluting agent in the oil extraction equipment , at 75°C for 90 minutes, to obtain grease and oily bran residue respectively;

[0030] The mass ratio of water-insoluble substances in waste liquid treatment to bran residue is 0.5:1;

[0031] (4) Mix vinegar grains, sludge from a sewage treatment plant rich in anaerobic microbial flora, oily bran residue and separated waste liquid from step (2) and ferment evenly, and ferment at 30°C in a nitrogen atmosphere 10d, get organic fertilizer;

[0032...

Embodiment 2

[0034] A method for agricultural utilization of edible oil refining waste liquid, comprising the following steps:

[0035] (1) Mix edible oil refining waste liquid with acidic waste water, and adjust the pH to 6.0 to obtain treated waste liquid;

[0036] (2) Add the treatment waste liquid of step (1) to the corn germ meal to obtain the mixture and separate the waste liquid, then use the countercurrent spray method to remove the oil from the mixture, and use acetone as the eluting agent in the oil extraction equipment , at 60°C for 120 minutes, to obtain grease and oily bran residue respectively;

[0037] The mass ratio of water-insoluble substances in waste liquid treatment to bran residue is 0.6:1;

[0038] (5) Ferment after mixing vinegar grains, sludge from a sewage treatment plant rich in anaerobic microbial flora, oily bran residue and separated waste liquid from step (2), and ferment in a nitrogen atmosphere at 35°C 8d, get organic fertilizer;

[0039] Among them, the...

Embodiment 3

[0041] A method for agricultural utilization of edible oil refining waste liquid, comprising the following steps:

[0042] (1) Mix edible oil refining waste liquid with acidic waste water, and adjust pH to 5.0 to obtain treated waste liquid;

[0043] (2) Add the treated waste liquid of step (1) into the soybean meal to obtain the mixture and the separated waste liquid, and then adopt the countercurrent spraying method to remove the oil from the mixture, and use acetone as the eluting agent in the oil extraction equipment. Circulating washing at 55°C for 180 minutes to obtain grease and oily bran residue respectively;

[0044]The mass ratio of water-insoluble substances in waste liquid treatment to bran residue is 0.8:1;

[0045] (3) Ferment after mixing vinegar grains, sludge from a sewage treatment plant rich in anaerobic microbial flora, oily bran residue and separated waste liquid from step (2), and ferment in a nitrogen atmosphere at 40°C 6d, get organic fertilizer;

[...

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Abstract

The invention relates to the technical field of agricultural organic fertilizer preparation, in particular to an agricultural utilization method of edible oil refining waste liquid. The method comprises the following steps: mixing the edible oil refining waste liquid with acid wastewater, and adjusting the pH value to 5.0-7.0 to obtain treated waste liquid; (2) adding the treated waste liquid in the step (1) into a carrier to obtain a mixture, and then removing oil from the mixture in a countercurrent spraying manner to respectively obtain grease and oil-containing bran residues; (3) uniformly mixing vinegar residues, inoculated sludge and the oil-containing bran residues obtained in the step (2), and carrying out fermenting to obtain the organic fertilizer. According to the invention, the problems of high oil content, high organic matter concentration and high biodegradability of edible oil industrial wastewater are solved, the treatment of the edible oil refining waste liquid is realized only by adopting fermentation equipment and grease leaching equipment, and the secondary utilization of the edible oil refining waste liquid is realized.

Description

technical field [0001] The invention relates to the technical field of agricultural organic fertilizer preparation, in particular to an agricultural utilization method of edible oil refining waste liquid, an organic fertilizer and its application. Background technique [0002] The oil produced by the oil press after the initial pressing of oil crops is called crude oil. The main component of crude oil is a mixture of triglyceride fatty acids, and it also contains non-glycerin substances. After refining, the water, impurities, and acids in the oil The valency and peroxide value have reached the quality standards stipulated by the state, and it is not easy to go rancid and deteriorate. When cooking, it does not produce a lot of oily smoke and maintains the flavor of oil; and edible oil is a necessary consumer product for people's life. It provides heat energy and essential fatty acids for the human body. An important food for the absorption of fat-soluble vitamins. With the rapi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F17/20C05G3/80C11B13/00
CPCC05F5/002C05F17/20C05G3/80C11B13/00C05F5/006C05F5/008C05F7/00Y02W30/40Y02W30/74
Inventor 周可金肖立宏朱孝天周克海余燕张付贵
Owner ANHUI AGRICULTURAL UNIVERSITY
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