Treatment method of antibiotic fermenting bacterial residues

A treatment method and fermentation bacteria technology, which is applied in the field of high-efficiency fermentation treatment process of lincomycin hydrochloride and gentamicin residues, can solve the problems of increasing the load of anaerobic fermentation tanks, residual precipitation of bacteria residues, and increasing gas production, etc. , to achieve the effect of improving biodegradability, reducing pollution and increasing work efficiency

Active Publication Date: 2014-12-17
ZHENGZHOU UNIV
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0010] The purpose of the present invention is to provide a kind of treatment method of antibiotic fermentation slag aiming at the technical problems existing in the treatment technology of existing antibiotic slag, and the method of the invention solves the problem of antibiotic slag in the anaerobic gas production resource reuse of antibiotic slag at present. Technical problems such as the inhibition of microorganisms by residues, residual precipitation of bacteria residues, and difficulty in separating sludge and residues make full use of the organic resources of antibiotic fermentation bacteria residues, improve the efficiency of anaerobic fermentation of antibiotic residues, and increase the load of anaerobic fermentation tanks , increase gas production, is an economical and efficient fermentation treatment method for treating antibiotic fermentation residues, especially gentamicin and lincomycin hydrochloride residues

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Embodiment 1

[0061] 1. Preparation of fermentation suspension

[0062] Put the gentamicin residue and lincomycin hydrochloride residue into the batching tank 1 according to the weight ratio of 1:2, the total weight of gentamicin residue and lincomycin hydrochloride is 0.33kg, then pass into water in batching tank 1, stir and mix evenly, be mixed with the bacterium residue suspension that solid content is 6.6%, the chemical oxygen demand COD of bacterium residue suspension is 33000mg / L;

[0063] In the present invention, the water passed into the batching tank can be selected from tap water, reused water, and the effluent of the secondary sedimentation tank for sewage treatment of relevant antibiotic production units. Except for tap water, other chromaticity≤30; pH: 6.5-7.5; COD≤100mg / L; SS≤30mg / L; NH 3 - Water with N≤20mg / L; TP≤1mg / L is applicable to the present invention.

[0064] 2. Hydrolysis and acidification treatment

[0065] Pass the suspension of bacterial residue into the hydr...

Embodiment 2

[0083] 1. Raw material preparation

[0084] Put the gentamicin residue and lincomycin hydrochloride residue into the batching pool 1 according to the weight ratio of 1:2.5, the total weight of gentamicin residue and lincomycin hydrochloride is 0.35kg, then pass into water in batching tank 1, stir and mix evenly, be mixed with the bacterium slag suspension that solid content is 7%, the chemical oxygen demand COD of bacterium slag suspension is 35000mg / L;

[0085] 2. Hydrolysis and acidification treatment

[0086] Pass the suspension of bacterial residue into the hydrolytic acidification tank 2 and carry out hydrolysis and acidification treatment on the suspension of bacterial residue under stirring state to obtain a mixed solution of hydrolyzed bacterial residue, wherein the hydrolytic acidification tank is filled with Akeman ecological base filler, and the filling ratio of the filler is 32%; the lignin-degrading bacteria Bacillus licheniformis CH15 cultivated by the Institute...

Embodiment 3

[0092] 1. Raw material preparation

[0093] The gentamicin slag and lincomycin hydrochloride slag are put into batching pool 1 according to the weight ratio of 1:1.5, the total weight of gentamicin slag and lincomycin hydrochloride is 0.25kg, then pass into water in batching tank 1, stir and mix evenly, be mixed with the bacterium residue suspension that solid content is 6%, the chemical oxygen demand COD of bacterium residue suspension is 30000mg / L;

[0094] 2. Hydrolysis and acidification treatment

[0095] Pass the suspension of bacterial residue into the hydrolytic acidification tank 2 and carry out hydrolysis and acidification treatment on the suspension of bacterial residue under stirring state to obtain a mixed solution of hydrolyzed bacterial residue, wherein the hydrolytic acidification tank is filled with Akeman ecological base filler, and the filling ratio of the filler is 28%; the lignin-degrading bacteria Bacillus licheniformis CH15 cultivated by the Institute of...

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Abstract

The invention discloses a treatment method of antibiotic fermenting bacterial residues. The treatment method comprises the following steps: uniformly mixing the fermenting bacterial residues of lincomycin hydrochloride and gentamicin with water, and preparing a suspension; performing anaerobic fermentation treatment on the suspension. The treatment method is an efficient fermentation treatment process of the fermenting bacterial residues of lincomycin hydrochloride and gentamicin and belongs to the technical field of resource utilization of the bacterial residues. By adopting the method disclosed by the invention, the toxicity, the harm and an inhibition effect of residual antibiotics to fermenting bacteria in an anaerobic fermentation process of the traditional antibiotic bacterial residues are overcome, the problems of blockage, short flow and the like which are produced when a traditional filler is fed are simultaneously avoided, the biomass of a hydrolysis acidification pool and an L-fermentation tank is ensured, the gas production is improved and the method further has the advantages of low treatment cost, easiness in control of operation process, high load of a reactor matched with the method, small occupied area and the like.

Description

technical field [0001] The invention belongs to the technical field of resource utilization of fungus residues, and in particular relates to a high-efficiency fermentation treatment process of lincomycin hydrochloride and gentamicin bacteria residues. Background technique [0002] Antibiotic fermentation slag is the solid fermentation waste produced in the process of fermenting and producing antibiotics. Its main components are the mycelium of antibiotic-producing bacteria, unused medium, metabolites produced during fermentation, and degradation products of the medium. As well as a small amount of antibiotics, it is a special kind of hazardous waste. If it is not disposed of properly, it will cause potential harm to the ecological environment and human health. The harm has the characteristics of concealment, lag, accumulation, synergy and jointness. [0003] In the waste bacterial residue of antibiotic fermentation, there is potential harm to the ecological environment due t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P5/02C12R1/10
Inventor 李海松王岩代吉华闫阳刘伟鹏
Owner ZHENGZHOU UNIV
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