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A kind of gentamicin fermentation waste liquid solid-liquid separation treatment method

A technology of fermentation waste liquid and gentamicin, which is applied in separation methods, filtration separation, filtration treatment, etc., can solve the problems of solid-liquid separation of Qingda fermentation waste liquid, reduce the amount of slag produced, and increase the filtration speed , the effect of large granularity

Active Publication Date: 2022-04-08
福安药业集团烟台只楚药业有限公司
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The solid-liquid separation of Qingda fermentation waste liquid is very difficult

Method used

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  • A kind of gentamicin fermentation waste liquid solid-liquid separation treatment method
  • A kind of gentamicin fermentation waste liquid solid-liquid separation treatment method
  • A kind of gentamicin fermentation waste liquid solid-liquid separation treatment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Adjust the different pH values ​​of Qingda fermentation waste liquid to study the effect on the filtration speed. The experimental design is as follows:

[0048] Experiment 1: Blank (the gentamicin fermentation waste liquid was directly subjected to plate and frame filtration).

[0049] Experiment 2: Add calcium oxide to adjust the pH to 7.0-8.5 while stirring the gentamicin fermentation waste liquid, and perform plate and frame filtration after stirring for 5 minutes.

[0050] Experiment 3: The gentamicin fermentation waste liquid was stirred by adding calcium oxide to adjust the pH to 9.0-10.5, stirred for 5 minutes, and then plate-and-frame filtered.

[0051] Experiment 4: Add calcium oxide to adjust the pH to 11-12.5 in the gentamicin fermentation waste liquid while stirring, and perform plate and frame filtration after stirring for 5 minutes.

[0052] Record the filtration time, take a sample to detect the COD of the filtrate, calculate the COD removal rate, and d...

Embodiment 2

[0056]Adding calcium oxide to the gentamicin fermentation waste liquid under stirring to adjust the pH to 9.0-10.5, adding lovastatin waste residue as a filter aid (lovastatin waste residue 1%, V / W, moisture ≤ 20%), Then filter through the plate and frame, and study the influence of the filtering speed.

[0057] The experimental design is as follows:

[0058] Experiment 5: Blank (add calcium oxide to adjust the pH to 9.0-10.5 in the gentamicin fermentation waste liquid while stirring, and perform plate and frame filtration after stirring for 5 minutes).

[0059] Experiment 6: After adding calcium oxide to adjust pH 9.0-10.5 to gentamicin fermentation waste liquid under stirring state, add lovastatin waste residue as filter aid (lovastatin waste residue 1%, V / W, moisture≤ 20%), and then filtered through the plate frame.

[0060] Record the filtration time, take a sample to detect the COD of the filtrate, calculate the COD removal rate, and detect the water content of the filt...

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Abstract

The invention discloses a solid-liquid separation treatment method for gentamicin fermentation waste liquid. After conditioning and modifying the gentamicin fermentation waste liquid, the filtration specific resistance of the fermentation waste liquid is reduced, and then filtered through a plate and frame. It can effectively intercept suspended solids (SS), increase the filtration speed of fermentation waste liquid, and prevent suspended solids in fermentation waste liquid from entering the water treatment biochemical system and causing serious impact on the biochemical system. The key technology of conditioning modification is to add lovastatin fermented bacteria residue, which belongs to the waste of fermented raw materials, and has the characteristics of large particle size, light weight after drying, and water swelling. The water content of the fungus residue obtained after filtration in the invention can reach below 70%, which reduces the amount of residue produced and is beneficial to the subsequent drying and incineration of the fungus residue. At the same time, the filtered filtrate is clarified, free of SS, and COD can be reduced by 50%, which is beneficial to the subsequent entry into the biochemical treatment system.

Description

technical field [0001] The invention relates to a solid-liquid separation treatment method for gentamicin fermentation waste liquid. The invention belongs to the technical field of industrial wastewater treatment. Background technique [0002] The production process of gentamicin is biological fermentation, and the fermentation waste liquid contains a large amount of mycelium, residual medium, sugars that are not fully utilized by microorganisms, inorganic salts, proteins, bacterial micelles and other microbial metabolites. Its characteristic is that the solid content of the fermentation suspension is low, generally about 1-3%, and most of the suspension is water. The suspended particles are small, the relative density is not much different from that of the liquid phase, and the liquid phase has a high viscosity, which is a non-Newtonian fluid. It is unstable in nature and changes with time and temperature. The solid-liquid separation of Qingda fermentation waste liquid i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D37/02C02F9/04C02F103/34
CPCB01D37/025C02F1/001C02F1/66C02F2103/343
Inventor 张家俊周英楠马东松岳红霞
Owner 福安药业集团烟台只楚药业有限公司
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