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Method for preparing single-cell protein powder from biological slurry

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

Active Publication Date: 2014-06-11
协赛(山东)生物科技有限公司
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  • Abstract
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  • Claims
  • Application Information

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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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  • Method for preparing single-cell protein powder from biological slurry
  • Method for preparing single-cell protein powder from biological slurry

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

[0028] a. Biological mud concentration

[0029] Periodically, the remaining biological mud containing microorganisms in the bioreactor is discharged into the biological mud concentration tank through the pipeline, and the biological mud is self-flowed into the tank from the biological system by its own gravity. The diameter of the pool body in this embodiment: 15 meters, depth: 3.5m, effective volume: 477m 3 The pipeline adopts a diameter of 150mm and a flowmeter diameter of 150mm. The pipeline is equipped with flow rate, velocity and TSS concentration measurement devices. The TSS concentration meter uses an online probe to measure, through the Siemens S-200PLC program module, the flow rate and flow rate are taken 10 times per second. TSS concentration data, accurately calculate the total emissions of TSS. The control flow rate is as follows: TSS concentration in sludge: 2-30g / L, TSS concentratio...

Embodiment 2

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

[0040] a. Biological mud concentration

[0041] Periodically, the remaining biological mud containing microorganisms in the bioreactor is discharged into the biological mud concentration tank through the pipeline, and the biological mud is self-flowed into the tank from the biological system by its own gravity. The diameter of the pool body in this embodiment: 15 meters, depth: 3.5 meters, effective volume: 477 meters 3 The pipeline adopts a diameter of 150mm and a flowmeter diameter of 150mm. A flow, velocity and TSS concentration metering device is installed on the pipeline. The TSS concentration meter uses an online probe to measure, through the Siemens S-200PLC program module, the flow rate and flow rate are taken 10 times per second. TSS concentration data, accurately calculate the total emissions of TSS. The control flow is as follows: TSS concentration in sludge: 2-30g / L, TSS concentratio...

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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 using biological mud on a large scale. [Background technique] [0002] In the production process of beer and food processing enterprises, the waste water 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 multiply and produce A large number of remaining microorganisms are produced. After the microorganisms settle in the sedimentation tank, the moisture content is 99%, and the organic matter content is as high as 40%. At present, the production of low-value-added fertilizers is basically done through dehydration, landfill, incineration, and reprocessing. [0003] There are many st...

Claims

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Application Information

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IPC IPC(8): A23K1/00
Inventor 宋建华胡福林
Owner 协赛(山东)生物科技有限公司
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