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A method for preparing single-cell protein powder using biological mud

A bio-sludge, protein powder technology, applied in the application, animal feed, animal feed and other directions, can solve the problems of only landfill, building materials or incineration, secondary pollution, low added value, etc., and is conducive to animal digestion and absorption. , the effect of reducing the amount of feed and energy consumption

Active Publication Date: 2015-11-04
ICELL SUSTAINABLE SHANGHAI NUTRITION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a large amount of waste gas is produced during the carbonization process. If it is not properly disposed of, it will cause secondary pollution, and the dry sludge produced can only be disposed of by landfill, building materials or incineration, and the added value is relatively low.

Method used

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  • A method for preparing single-cell protein powder using biological mud
  • A method for preparing single-cell protein powder using biological mud

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] See attached figure 1 , the preparation method comprises the following steps:

[0028] a. Bio-sludge concentration

[0029] Periodically, the remaining bio-sludge containing microorganisms in the bioreactor is discharged into the bio-sludge concentration tank through the pipeline, and the bio-sludge flows from the biological system into the pool by its own gravity. The pool body diameter in this embodiment: 15 meters, depth: 3.5m, effective volume: 477m 3 , the pipeline adopts a diameter of 150mm, and the diameter of the flowmeter is 150mm. The flow rate, flow rate and TSS concentration measurement device are installed on the pipeline. The TSS concentration meter is measured by an online probe. Through the Siemens S-200PLC program module, the flow and flow rate are taken 10 times per second. The data of TSS concentration can accurately calculate the total emission of TSS. The control flow rate is: TSS concentration of incoming sludge: 2-30g / L, TSS concentration of sl...

Embodiment 2

[0039] See attached figure 2 , the preparation method comprises the following steps:

[0040] a. Bio-sludge concentration

[0041] Periodically, the remaining bio-sludge containing microorganisms in the bioreactor is discharged into the bio-sludge concentration tank through the pipeline, and the bio-sludge flows from the biological system into the pool by its own gravity. The pool body diameter in this embodiment: 15 meters, depth: 3.5m, effective volume: 477m 3 , the pipeline adopts a diameter of 150mm, and the diameter of the flowmeter is 150mm. The flow rate, flow rate and TSS concentration measurement device are installed on the pipeline. The TSS concentration meter is measured by an online probe. Through the Siemens S-200PLC program module, the flow and flow rate are taken 10 times per second. The data of TSS concentration can accurately calculate the total emission of TSS. The control flow rate is: TSS concentration of incoming sludge: 2-30g / L, TSS concentration of s...

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Abstract

The invention relates to a method for preparing single-cell protein powder from biological slurry. The method is characterized by comprising the following steps: a, concentration of biological slurry, namely periodically discharging residual biological slurry containing microorganisms in a bio-reactor into a biological slurry concentration tank through a pipeline to concentrate the biological slurry till the water content is 97% below; b, dehydration, namely dehydrating the biological slurry by dehydration equipment till the water content is 75%-85%; c, airflow flashing drying, namely drying the dehydrated biological slurry by airflow flashing drying equipment till the water content is 10%-50%, wherein the inlet air temperature, the outlet air temperature and the material contact temperature of the airflow flashing drying equipment are controlled to ensure that the pepsase digestibility is not lowered; and d, sterilization by microwave drying, namely conveying the biological slurry to microwave drying sterilization equipment, and standing for 1-10 minutes till the water content of the slurry is 5%-15%. The protein solubility and the pepsase digestibility of the single-cell protein powder prepared by the method are improved greatly and are not lowered during processing, and the single-cell protein powder is good in mobility and can be a quality raw material of livestock and aquatic feed.

Description

[technical field] [0001] The invention relates to the field of single-cell protein feed processing, in particular to a process method for preparing and producing single-cell protein powder by utilizing biological mud on a large scale. [Background technique] [0002] In the production process of beer and food processing enterprises, the wastewater containing a large amount of organic soluble waste is discharged, and then it is digested and absorbed by single-cell microorganisms in the aerobic biological treatment system to reduce the concentration of organic matter in the water, and the microorganisms grow and reproduce in large numbers and produce A large number of remaining microorganisms are produced. After the microorganisms are settled in the sedimentation tank, the water content is 99%, and the organic matter content is as high as 40%. At present, it is basically through dehydration landfill, incineration and through reprocessing to produce low value-added fertilizers. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23K1/00
Inventor 宋建华胡福林
Owner ICELL SUSTAINABLE SHANGHAI NUTRITION CO LTD