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Antibiotic residue treatment and utilization technological method

A technology of antibiotic bacteria residues and bacteria residues, applied in the direction of combustion methods, lighting and heating equipment, combustion types, etc., can solve the problems of poor biodegradability, high energy consumption, high cost, etc., and achieve a high degree of reduction and reduction The effect of reducing the chemical cost and improving the utilization rate of organic matter

Active Publication Date: 2019-01-08
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a complete set of high-efficiency treatment for the characteristics of high moisture content, poor dehydration and poor biodegradability of antibiotic bacteria residues and the high cost and high energy consumption of the "direct drying + hazardous waste incineration" process route The method of antibiotic bacteria residue, through the treatment of "hydrothermal pretreatment + pressure filter dehydration + supernatant upflow anaerobic sludge bed digestion + anaerobic pyrolysis of high-dry mud cake", the reduction of antibiotic bacteria residue, Harmless and resourceful treatment

Method used

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  • Antibiotic residue treatment and utilization technological method

Examples

Experimental program
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Effect test

Embodiment 1

[0045] Coordinated with reference to the following table 1, the following table 1 is the comparison of the detection test data of bacitracin. .

[0046]

[0047] The moisture content of bacitracin residue is 90.5% (TS=95060mg / L, VS=82540mg / L, VS / TS=86.8%, SS=72373mg / L, VSS=59942mg / L, COD=115596mg / L, pH=4.0, Chemical potency = 92u / mL), without dilution during the slurry reaction period, it is directly passed into the hydrothermal reactor after being stirred evenly, and the slag is heated to 180°C by passing in 200°C, 1.6MPa saturated steam, and the reaction time is After 60 minutes, the colloid and cell structure in the bacteria residue were destroyed, and the water-heated bacteria residue was leaked into the flash tank, the colloid and cell structure in the bacteria residue were further destroyed, and the hydrothermal bacteria residue in the flash reactor was sampled for detection (TS =73444mg / L, VS=60519mg / L, VS / TS=82.4%, SS=48870mg / L, VSS=36740mg / L, COD=96740mg / L, pH=4.4...

Embodiment 2

[0053] Referring to the following table 2, the following table 2 is a comparison of the detection test data for streptomycin.

[0054]

[0055] The moisture content of streptomycin residue is 94.7% (TS=53021mg / L, VS=43583mg / L, VS / TS=82.2%, SS=33164mg / L, VSS=24273mg / L, COD=58472mg / L, pH=3.75 , chemical potency = 1083u / mL), there is no need to dilute during the slurry reaction period, after stirring evenly, it is directly passed into the hydrothermal reactor, and the saturated steam of about 200°C and 1.6MPa is passed through to heat the bacterial residue to 180°C, and the reaction The time is 60 minutes, the colloid and cell structure in the bacteria residue are destroyed, and the water-heated bacteria residue is leaked into the flash tank, the colloid and cell structure in the bacteria residue are further destroyed, and the hydrothermal bacteria residue in the flash reactor is sampled for detection (water content=96.5%, TS=34776mg / L, VS=26531mg / L, VS / TS=76.3%, SS=20227mg / L,...

Embodiment 3

[0061] The moisture content of gentamicin bacteria residue is 96.9% (TS=31333mg / L, VS=25882mg / L, VS / TS=82.6%, SS=16227mg / L, VSS=14068mg / L, COD=44563mg / L, pH= 6. Chemical potency = 31u / mL), no need to dilute during the slurry reaction period, after stirring evenly, it is directly passed into the hydrothermal reactor, and the saturated steam of about 200°C and 1.6MPa is passed through to heat the bacterial residue to 180°C, The reaction time is 30 minutes, the colloid and cell structure in the bacteria residue are destroyed, and the water-heated bacteria residue is leaked into the flash tank, the colloid and cell structure in the bacteria residue are further destroyed, and the hydrothermal bacteria residue in the flash reactor is sampled Detection (moisture content=97.4%, TS=25820mg / L, VS=22060mg / L, VS / TS=85.4%, SS=13380mg / L, VSS=11621mg / L, COD=33088mg / L, pH=5.76, chemical Titer = 0 u / mL).

[0062] Pass the bacitracin slag at 105°C in the flash reactor into a small plate-and-fr...

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Abstract

The invention discloses an antibiotic residue treatment and utilization technological method. The method comprises the following steps: performing hydro-thermal treatment on antibiotic residues to allow the moisture content of the residues to be 90 to 95 percent and the temperature to be between 100 and 110 DEG C; directly performing pressure filtration on the residues subjected to the hydro-thermal treatment without cooling, setting the material feeding pressure at 1.0 to 1.2 MPa, the pressure filtering pressure at 1.4 MPa and the pressure filtering time at 1.5 to 3 h, and dividing the pressure-filtered residues into a pressure-filtered mud cake with the moisture content of 30 to 55 percent and residue filtrate with a COD content of 24,000 to 65,000 mg / L; drying and smashing the pressure-filtered mud cake to allow the moisture content of the dried residue particles to be reduced to 20 percent or less than 20 percent, and performing pyrolysis treatment and anaerobic digestion. Through'hydro-thermal pretreatment+ pressure-filtering dewatering+ upflow anaerobic sludge bed digestion of supernate+ anaerobic pyrolysis of a high-dryness mud cake', the antibiotic residue treatment and utilization technological method realizes reducing, harmless and recycling treatment of the antibiotic residues.

Description

technical field [0001] The invention belongs to the technical field of biomass waste treatment and disposal, and in particular relates to a technical method for the treatment and utilization of antibiotic bacteria residues. Background technique [0002] A large amount of fungal residues are produced during the production of antibiotics, with an average of 8 to 10 tons of wet fungal residues (80% to 90% water content) produced per ton of antibiotic products. Antibiotic residues are included in the national list of hazardous wastes due to their antibiotic residues and potential drug resistance genes. Their collection, storage, and disposal must be strictly implemented in accordance with hazardous waste standards. At this stage, the process of "direct drying + hazardous waste incineration" The cost of disposal along the route is as high as 2,000 to 4,000 yuan / ton, which exceeds the capacity of the enterprise. In view of the characteristics of high moisture content, poor dehydr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P5/02F23G7/02
CPCC12P5/023F23G7/02Y02E50/30Y02P20/129
Inventor 王伟王一迪胡霜
Owner TSINGHUA UNIV
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