CN103146762B - Treatment method of penicillin mushroom dregs - Google Patents
Treatment method of penicillin mushroom dregs Download PDFInfo
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- CN103146762B CN103146762B CN201310095896.1A CN201310095896A CN103146762B CN 103146762 B CN103146762 B CN 103146762B CN 201310095896 A CN201310095896 A CN 201310095896A CN 103146762 B CN103146762 B CN 103146762B
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- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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Abstract
The invention discloses a treatment method of penicillin mushroom dregs. The treatment method comprises the following process steps of: (A), pyrohydrolysis and separation treatment: uniformly mixing the penicillin mushroom dregs with water to perform constant-temperature hydrolysis reaction, and performing solid-liquid separation at a room temperature after the reaction is finished to obtain sediments for later use; and (B), anaerobic digestion treatment: inoculating anaerobic activated sludge in an anaerobic fermentation tank, mixing the sediments obtained in the step (A) with surplus sludge caused by wastewater biological treatment and injecting a mixture into the fermentation tank to stir at a constant temperature, and draining biogas residues and feeding during fermentation. By using the treatment method, residues of drugs in the penicillin mushroom dregs can be completely eliminated, so that the problem that anaerobic fermentation of single penicillin mushroom dreg cannot be efficiently sustained is solved, and minimization and innocent treatment to the penicillin mushroom dregs are realized; and moreover, biogas residues obtained by treatment of the penicillin mushroom dregs can be used as raw materials of organic fertilizers, and biogas generated during anaerobic reaction can be used as cleaning fuels, so that safe and effective treatment and resource utilization of the penicillin mushroom dregs are realized.
Description
Technical field
The present invention relates to a kind for the treatment of technology of antibiotic bacterium dregs, particularly relate to a kind for the treatment of process of penicillin mushroom dregs.
Background technology
China is penicillin production big country, the solid waste produced in penicillin production process is penicillin mushroom dregs, its water ratio is high, complicated component, not only containing nutritive substances such as a large amount of tropina (accounting for more than 40% of dry weight), abundant VITAMIN, somatomedin and substratum residues, and various toxic metabolic products containing microorganism and downstream processing additive etc.Penicillin mushroom dregs has the features such as easy corruption, instability, foul smelling, and under the condition of high temperature and long storage periods, very easily fermentation produces niff, and long storage periods also can cause thalline self-dissolving, and then produces large amount of sewage, causes serious environmental pollution.In addition, owing to containing residual substratum and micro-microbiotic in penicillin mushroom dregs, there is very wide antimicrobial spectrum, if do not deal carefully with loss entered environment, likely suppress the normal growth of certain micro-organisms kind in environment and realm, procreation, the eubiosis that welding is intrinsic, also exists potential harm to ecotope, food chain may be entered time serious, and then harm humans is healthy.
According to investigations, the penicillin mushroom dregs amount that the pharmacy corporation of each production penicillin medicine produces every year is between several ten thousand tons to tens0000 tons, and quantity is big causes great difficulty to penicillin mushroom dregs process.For a long time, people are actively seeking economy, efficiently and process the method for penicillin mushroom dregs up hill and dale always.At present, mainly contain following several to the method for disposal of penicillin rhzomorph bacterium slag both at home and abroad: 1) agricultural and livestock industry utilize: owing to containing a large amount of polysaccharide, protein and multiple amino acids and trace element in penicillin mushroom dregs, therefore, from the sixties in last century five, feed, additive or fertilizer is widely used as.The developed country such as European Union, Japan, through studying discovery for a long period of time, after penicillin mushroom dregs pyroprocessing, can be used for producing poultry and livestock feed and agriculture fertilizer.Holland DSM N. V. be namely adopt high-temperature technology by after penicillin mushroom dregs harmless treatment for the production of feed.But micro-microbiotic residual in bacterium slag may enrichment in animal and plant body, and then forms potential impact and risk to the ecosystem, food safety and HUMAN HEALTH etc.On August 1st, 2008, antibiotic bacterium dregs is clearly classified as " Hazardous wastes " by China, forbids that antibiotic bacterium dregs is directly used as feed, fertilizer; 2) burn: the incineration disposal of penicillin mushroom dregs can promptly make bacterium slag turn to dust and ashes, thus reach minimizing, innoxious object, but because penicillin mushroom dregs has the features such as output is large, water ratio is high, calorific value is low, bacterium slag is dry and burn the heat energy needing consumption a large amount of, therefore burns cost high; And the processing power of existing danger waste burning facility can not satisfy the demands far away, penicillin mushroom dregs incineration disposal is difficult to carry out; 3) landfill: landfill is the technology of a comparative maturity, and this method of disposal is simple, easy, but have that floor space is large, cost of disposal is high, the large and transudate of big area landfill site selection difficulty, shipment distance may the problem such as polluted underground water.
The specification of antibiotic bacterium dregs disposes one of important factor having become restriction pharmaceutical industry development at present, and the recycling realizing it while carrying out harmless treatment to antibiotic bacterium dregs has become in the urgent need to the emphasis with research and development.
CN01106380.7 discloses a kind of detoxification penicillin mushroom dregs and preparation method thereof and as the application of tropina in feed.Its preparation method comprises the steps: the preparation of 1. bacterial classification: the bacterial classification of use is cereuisiae fermentum and Rhodopseudomonas, in the two compound criteria liquid medium within, culture condition: 15 DEG C ~ 35 DEG C, interval ventilation, air flow 1:0.4 ~ 1:0.8vvm, intermittent stirring, mixing speed 100rpm ~ 220rpm, culture cycle 1 ~ 5 day; 2. pre-treatment: by penicillin wet bacteria slag acid liquid, example hydrochloric acid or other acid solution adjust pH2 ~ 5, and 60 DEG C ~ 80 DEG C process 4 ~ 8 hours, with alkali lye as in sodium hydroxide solution or other alkali lye and pH6.0 ~ 6.5; 3. ferment tank: the wet bacteria slag after above-mentioned process is entered in fermentor tank, charge amount accounts for 60% ~ 80% of fermentation volume, separately add account for bacterium slag weight 1% ~ 10% carbon source material as glucose or other glucide, 121 DEG C of sterilizings 30 minutes, when temperature is down to 30 DEG C ± 2 DEG C, the seed liquor of access 0.5% ~ 25%, at 15 DEG C ~ 35 DEG C, interval ventilation, air flow 1:0.4 ~ 1:0.8vvm, intermittent stirring, cultivates 2 ~ 7 days under mixing speed 100 ~ 220rpm, puts fermented liquid and enter in basin; 4. spraying dry: control inlet temperature at 160 DEG C ~ 190 DEG C, collects dry powder and is detoxification penicillin mushroom dregs finished product.This invention solves the penicillin mushroom dregs not easily thorough problem such as low, the contaminate environment of detoxification and drying treatment, feed safety.But in this invention, the preparation of detoxification penicillin mushroom dregs needs the preparation carrying out bacterial classification in advance, and preparation method is loaded down with trivial details, not easy to operate; Also need during fermentative processing to add carbon source material, increase processing cost; And the product after process is used for feed, still there is certain technology and policy risk.At present, have a lot of research adopting the mode of anaerobically fermenting to dispose penicillin mushroom dregs, but the fermentation of the fermentation processing method ubiquity of existing penicillin mushroom dregs is difficult to continue to carry out, and processes not thorough, the drawback that drug residue is difficult to remove completely etc., limits its application.
Summary of the invention
The technical issues that need to address of the present invention be to provide a kind of can economical, efficiently, up hill and dale to the method that penicillin mushroom dregs processes.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A treatment process for penicillin mushroom dregs, comprises following processing step:
A, thermal hydrolysis and separating treatment: by penicillin mushroom dregs and water Homogeneous phase mixing, carry out constant temperature hydrolysis reaction, leave standstill at normal temperatures after completion of the reaction, carry out solid-liquid separation process, form supernatant liquor and sediment, supernatant liquor is introduced Conventional waste water treatment system and process, sediment is for subsequent use;
B, Anaerobic Digestion: first in anaerobic fermentation tank, inoculate anaerobic activated sludge, then the excess sludge that the sediment of steps A gained and biological wastewater treatment produce is mixed, obtain sediment mud mixture, and described sediment mud mixture is injected anaerobic fermentation tank, finally under agitation carry out ferment at constant temperature, in fermenting process, carry out row natural pond slag and feed operation.
Further improvement of the present invention is: the concrete reaction conditions stating steps A joins in reactor by the penicillin mushroom dregs 100 parts ~ 200 parts counted by weight, 400 parts ~ 800 parts, water; The temperature of hydrolysis reaction is 60 DEG C ~ 80 DEG C, and the time of hydrolysis reaction is 0.5h ~ 2.0h; Reaction product left standstill at normal temperatures after completion of the reaction, carry out solid-liquid separation process, time of repose is 15h ~ 25h; The solid content of gained sediment is 6% ~ 9%.
Further improvement of the present invention is: in described step B, and in anaerobic fermentation tank, the injection rate of anaerobic activated sludge is 20% ~ 50% of anaerobically fermenting tank volume; In described sediment mud mixture, the volume ratio of the excess sludge that the sediment of steps A gained and biological wastewater treatment produce is 1:1 ~ 4:1; In anaerobic fermentation tank, the add-on of sediment mud mixture is 3% ~ 7% of anaerobically fermenting tank volume; The intensity of described stirring is 60rpm ~ 100rpm, and anaerobically fermenting temperature is 30 DEG C ~ 40 DEG C; Described row natural pond slag and feed operation are that continous way is carried out or intermittent type carries out.
Further improvement of the present invention is: the timed interval of described intermittent type row's natural pond slag and feed operation be that the row natural pond slag total amount of 6h ~ 12h, every 24h and charging total amount are 3% ~ 7% of anaerobically fermenting tank volume.
Further improvement of the present invention is: in the row natural pond slag that described continous way is carried out and feed operation, the row natural pond slag total amount of every 24h and charging total amount are 3% ~ 7% of anaerobically fermenting tank volume.
Further improvement of the present invention is: by the biogas produced in described step B in order to produce steam, with the heat source of this steam as thermal hydrolysis and Anaerobic Digestion.
Further improvement of the present invention is: carry out collecting also as the raw material preparing fertilizer to the natural pond slag that step B produces.
Owing to have employed technique scheme, the technical progress acquired by the present invention is:
The treatment process of penicillin mushroom dregs of the present invention can realize the efficient, economic of penicillin mushroom dregs and process up hill and dale, solves single penicillin mushroom dregs anaerobically fermenting and is difficult to efficiently, continues the problem of carrying out.The present invention realizes minimizing to penicillin mushroom dregs, harmless treatment by thermal hydrolysis and separating treatment and Anaerobic Digestion two processing steps, easy and simple to handle, treatment effect is good, there is significant environmental and social benefits and certain economic benefit, completely eliminate the drug residue in penicillin mushroom dregs and the Pollution risk to environment thereof.The biogas of penicillin mushroom dregs gained after process of the present invention can as energy utilization, and natural pond slag can be used as raw material and prepares fertilizer, achieves the recycling of penicillin mushroom dregs, for the safe disposal of antibiotic bacterium dregs and Appropriate application provide effective way.
Thermal hydrolysis in the present invention and separating treatment technique, first pass through amount of water, temperature of reaction, reaction times isoparametric control, microbiotic residual in penicillin mushroom dregs and triumphant nitrogen are tentatively cut down, make the Penicillin Residues < 0.5mg/kg entered in the penicillin mushroom dregs of anaerobic digestion, triumphant nitrogen reduction is greater than 48%, essentially eliminate the impact of Penicillin Residues on Anaerobic Digestion, effectively alleviate the impact of ammonia nitrogen on anaerobic digestion, for the efficient, stable of subsequent anaerobic digestion creates favorable conditions.Then by separating treatment, the product after thermal hydrolysis process is left standstill 15h ~ 25h at normal temperatures, and be separated into supernatant liquor and sediment, the solid content of gained sediment is 6% ~ 9%.Due to after thermal hydrolysis process, seldom, the wastewater treatment through routine can realize the harmless treatment to it to the drug residue in the supernatant liquor of separating treatment gained.Therefore, only need after separating treatment to carry out anaerobic digestion to sediment, significantly reduce the amount of solid of penicillin mushroom dregs, penicillin mushroom dregs solid reduction after thermal hydrolysis and separating treatment is greater than 54% after testing, greatly reduces the processing cost of penicillin mushroom dregs.
Anaerobic digestion process in the present invention, first the excess sludge that penicillin mushroom dregs and biological wastewater treatment produce is mixed, further improve the nutritional condition of anaerobically fermenting matrix, reduce the impact of ammonia nitrogen on Anaerobic Digestion, and contribute to the maintenance of anaerobic digester system biomass, for efficient, the lasting anaerobically fermenting of penicillin mushroom dregs creates favourable condition.Then by the control to factors such as the solid content of sediment mud mixture and dosing ratio, stirring intensity, temperature of reaction, the row natural pond quantity of slag and inlet amounies, realize stable, the Effec-tive Function of penicillin mushroom dregs anaerobically fermenting, completely eliminate microbiotic residual in penicillin mushroom dregs, reduce the solid masses of penicillin mushroom dregs further.
In the present invention, the anaerobic digestion of penicillin mushroom dregs can steady running under high loading, high solid content condition, in the natural pond slag that anaerobic digestion produces, Penicillin Residues is extremely low, Penicillin Residues < 0.05mg/kg, the residual of this dosage can not work the mischief to plant and human body.And owing to containing a large amount of polysaccharide, protein and the nutritive substance such as multiple amino acids and trace element in the slag of gained natural pond, not containing heavy metal and toxic and harmful substance, can be used as the raw material producing agriculture fertilizer, make penicillin mushroom dregs resource obtain rationally, fully, effectively utilizing, and reduce environmental pollution.
In Anaerobic Digestion of the present invention, the product methane quantity of unit sediment mud mixture is greater than 450m
3/ ton (butt), the biogas produced can in order to produce steam, and gained steam can be used for heat hot hydrolysis reaction and anaerobic digestion, achieves the recycle of resource.
Embodiment
Be described in further detail the present invention below in conjunction with embodiment, number involved in following embodiment is parts by weight.
Embodiment 1
A, thermal hydrolysis and separating treatment: first penicillin mushroom dregs 200 parts, 800 parts, water are joined in reactor, stir above-mentioned material and make its Homogeneous phase mixing; Then steam-heated mode is adopted to make material in reactor temperature rise to 60 DEG C, isothermal reaction 0.5h; After completion of the reaction solid-liquid separation process is carried out to material in reactor, leave standstill 15h at normal temperatures by material in reactor, make it form supernatant liquor and sediment; Finally supernatant liquor is introduced Conventional waste water treatment system to process, stay sediment for subsequent use, the solid content of gained sediment is 9%.
B, Anaerobic Digestion: first the anaerobic activated sludge for anaerobically fermenting tank volume 20% is seeded in anaerobic fermentation tank; The ratio of the excess sludge simultaneously sediment of steps A gained and biological wastewater treatment produced 3:1 by volume carries out Homogeneous phase mixing, obtains a kind of sediment mud mixture; Then the above-mentioned sediment mud mixture for anaerobically fermenting tank volume 3% is injected to anaerobic fermentation tank by the slag inlet on anaerobic fermentation tank; Meanwhile, open whipping appts and heating unit, stirring intensity is 60rpm, and controlling leavening temperature is 30 DEG C.In fermenting process, utilize pump to carry out the operation of continous way charging and row natural pond slag, namely discharge from the slag-drip opening of anaerobic fermentation tank at the natural pond slag of gained after Anaerobic Digestion in 24h by total amount being anaerobically fermenting tank volume 3% uninterruptedly; Be simultaneously that the sediment mud mixture of anaerobically fermenting tank volume 3% injects anaerobic fermentation tank from slag inlet uninterruptedly by total amount in 24h.The biogas produced in Anaerobic Digestion process is discharged from the methane outlet of anaerobic fermentation tank, and enters methane boiler burning and make to produce steam in boiler, and gained steam is in order to heating hydrolysis reactor and anaerobic fermentation tank.
The sediment of gained and supernatant liquor after penicillin mushroom dregs in Example 1, thermal hydrolysis and separating treatment, after Anaerobic Digestion, the natural pond slag of gained carries out detection and analyzes, and result is as shown in table 1 below:
Table 1
| Material | Penicillin Residues | Triumphant nitrogen remains | Amount of solid decrement |
| Penicillin mushroom dregs | 4841mg/kg | 18.6mg/g | |
| Thermal hydrolysis and separating treatment gained sediment | 0.43mg/kg | 4827mg/L | 50.2% |
| Thermal hydrolysis and separating treatment gained supernatant liquor | 0.18mg/kg | 2982mg/L | |
| Anaerobic Digestion gained natural pond slag | ＜0.05mg/kg | 4630mg/L | 64.2% |
From upper table 1, the penicillin mushroom dregs in embodiment 1 after thermal hydrolysis and separating treatment, Penicillin Residues clearance > 99.99%, solid decrement 50.2%, triumphant nitrogen abatement 48.1%; Penicillin mushroom dregs in embodiment 1 is after thermal hydrolysis and separating treatment and Anaerobic Digestion, and overall treatment effect is: Penicillin Residues clearance > 99.99%, solid decrement 64.2%.
Embodiment 2
A, thermal hydrolysis and separating treatment: first penicillin mushroom dregs 100 parts, 400 parts, water are joined in reactor, stir above-mentioned material and make its Homogeneous phase mixing; Then steam-heated mode is adopted to make material in reactor temperature rise to 70 DEG C, isothermal reaction 2h; After completion of the reaction solid-liquid separation process is carried out to material in reactor, leave standstill 25h at normal temperatures by material in reactor, make it form supernatant liquor and sediment; Finally supernatant liquor is introduced conventional water treatment system and carry out subsequent disposal, stay sediment for subsequent use, the solid content of gained sediment is 6%.
B, Anaerobic Digestion: first the anaerobic activated sludge for anaerobically fermenting tank volume 50% is seeded in anaerobic fermentation tank; The sediment of steps A gained and biological wastewater treatment are produced simultaneously the ratio of excess sludge 4:1 by volume carry out Homogeneous phase mixing, obtain a kind of sediment mud mixture; Then being divided in 24h by the above-mentioned sediment mud mixture for anaerobically fermenting tank volume 7% is injected in anaerobic fermentation tank by the slag inlet on anaerobic fermentation tank four times; Open whipping appts and heating unit, stirring intensity is 100rpm simultaneously, and controlling leavening temperature is 35 DEG C.In fermenting process, natural pond slag operation is once arranged every 6h, each bed drain purge is 1.7% ~ 1.8% of anaerobically fermenting tank volume, namely divides four slag-drip openings from anaerobic fermentation tank to discharge at the natural pond slag of gained after Anaerobic Digestion in 24h by total amount being anaerobically fermenting tank volume 7%; Carry out a feed operation immediately after each deslagging, each inlet amount is 1.7% ~ 1.8% of anaerobically fermenting tank volume, is namely that the sediment mud mixture of 7% of anaerobically fermenting tank volume divides four times from slag inlet injection anaerobic fermentation tank by total amount in 24h.The biogas produced in Anaerobic Digestion process is discharged from the methane outlet of anaerobic fermentation tank, and enters methane boiler burning and make to produce steam in boiler, and gained steam is in order to reacting by heating still and anaerobic fermentation tank.
Penicillin mushroom dregs in Example 2, through the sediment of thermal hydrolysis and separating treatment gained and supernatant liquor, after Anaerobic Digestion, the natural pond slag of gained carries out detection and analyzes, and result is as shown in table 2 below:
Table 2
| Material | Penicillin Residues | Triumphant nitrogen remains | Amount of solid decrement |
| Penicillin mushroom dregs | 5285mg/kg | 19.5mg/g | |
| Thermal hydrolysis and separating treatment gained sediment | ﹤0.1mg/kg | 3744mg/L | 63.3% |
| Thermal hydrolysis and separating treatment gained supernatant liquor | ＜0.1mg/kg | 4004mg/L | |
| Anaerobic Digestion gained natural pond slag | ＜0.05mg/kg | 3149mg/L | 74.6% |
From upper table 2, the penicillin mushroom dregs in embodiment 2 after thermal hydrolysis and separating treatment process, Penicillin Residues clearance > 99.99%, solid decrement 63.3%, triumphant nitrogen abatement 61.6%; Penicillin mushroom dregs in embodiment 2 is after thermal hydrolysis and separating treatment and Anaerobic Digestion, and overall treatment effect is: Penicillin Residues clearance > 99.99%, solid decrement 74.6%.
Embodiment 3
A, thermal hydrolysis and separating treatment: first penicillin mushroom dregs 180 parts, 600 parts, water are joined in reactor, stir above-mentioned material and make its Homogeneous phase mixing; Then steam-heated mode is adopted to make material in reactor temperature rise to 80 DEG C, isothermal reaction 1.5h; After completion of the reaction solid-liquid separation process is carried out to material in reactor, leave standstill 20h at normal temperatures by material in reactor, make it form supernatant liquor and sediment; Finally supernatant liquor is introduced Conventional waste water treatment system to process, stay sediment for subsequent use, the solid content of gained sediment is 7%.
B, Anaerobic Digestion: first the anaerobic activated sludge for anaerobically fermenting tank volume 30% is seeded in anaerobic fermentation tank; The ratio of the excess sludge simultaneously sediment of steps A gained and biological wastewater treatment produced 1:1 by volume carries out Homogeneous phase mixing, obtains a kind of sediment mud mixture; Then being divided in 24h by the above-mentioned sediment mud mixture for anaerobically fermenting tank volume 5% is injected in anaerobic fermentation tank by the slag inlet on anaerobic fermentation tank three times; Open whipping appts and heating unit, stirring intensity is 80rpm simultaneously, and controlling leavening temperature is 40 DEG C.In fermenting process, natural pond slag operation is once arranged every 8h, each bed drain purge is 1.6% ~ 1.7% of anaerobically fermenting tank volume, namely divides three slag-drip openings from anaerobic fermentation tank to discharge at the natural pond slag of gained after Anaerobic Digestion in 24h by total amount being 5% of anaerobically fermenting tank volume; Carry out a feed operation immediately after each deslagging, each inlet amount is 1.6% ~ 1.7% of anaerobically fermenting tank volume, is namely that the sediment mud mixture of 5% of anaerobically fermenting tank volume divides three times from slag inlet injection anaerobic fermentation tank by total amount in 24h.The biogas produced in Anaerobic Digestion process is discharged from the methane outlet of anaerobic fermentation tank, and enters methane boiler burning and make to produce steam in boiler, and gained steam is in order to heating hydrolysis reactor and anaerobic fermentation tank.
Penicillin mushroom dregs in Example 3, through the sediment of thermal hydrolysis and separating treatment gained and supernatant liquor, after Anaerobic Digestion, the natural pond slag of gained carries out detection and analyzes, and result is as shown in table 3 below.
As shown in Table 3, the penicillin mushroom dregs in embodiment 3 after thermal hydrolysis and separating treatment, Penicillin Residues clearance > 99.99%, solid decrement 59.1%, triumphant nitrogen abatement 58.5%; Penicillin mushroom dregs in embodiment 3 is after thermal hydrolysis and separating treatment and Anaerobic Digestion, and overall treatment effect is: Penicillin Residues clearance > 99.99%, solid decrement 73.3%.
Table 3
| Material | Penicillin Residues | Triumphant nitrogen remains | Amount of solid decrement |
| Penicillin mushroom dregs | 5102mg/kg | 17.9mg/g | |
| Thermal hydrolysis and separating treatment gained sediment | 0.34mg/kg | 3714mg/L | 59.1% |
| Thermal hydrolysis and separating treatment gained supernatant liquor | 0.1mg/kg | 3491mg/L | |
| Anaerobic Digestion gained natural pond slag | ＜0.05mg/kg | 3455mg/L | 73.3% |
Embodiment 4
A, thermal hydrolysis and separating treatment: penicillin mushroom dregs 150 parts, 500 parts, water are joined in reactor, stirs above-mentioned material and make its Homogeneous phase mixing; Then steam-heated mode is adopted to make material in reactor temperature rise to 80 DEG C, isothermal reaction 1.0h; After completion of the reaction solid-liquid separation process is carried out to material in reactor, leave standstill 18h at normal temperatures by material in reactor, make it form supernatant liquor and sediment; Finally supernatant liquor is introduced Conventional waste water treatment system to process, stay sediment for subsequent use, the solid content of gained sediment is 8%.
B, Anaerobic Digestion: first the anaerobic activated sludge note for anaerobically fermenting tank volume 40% is seeded in anaerobic fermentation tank; The ratio of the excess sludge simultaneously sediment of steps A gained and biological wastewater treatment produced 2:1 by volume carries out Homogeneous phase mixing, obtains a kind of sediment mud mixture; Then the above-mentioned sediment mud mixture for anaerobically fermenting tank volume 4% is injected in anaerobic fermentation tank by the slag inlet on anaerobic fermentation tank at twice in 24h; Open whipping appts and heating unit, stirring intensity is 70rpm simultaneously, and controlling leavening temperature is 40 DEG C.In fermenting process, natural pond slag operation is once arranged every 12h, each bed drain purge is 2% of anaerobically fermenting tank volume, namely discharges from the slag-drip opening of anaerobic fermentation tank at twice at the natural pond slag of gained after Anaerobic Digestion in 24h by total amount being 4% of anaerobically fermenting tank volume; Carry out a feed operation immediately after each deslagging, each inlet amount is 2% of anaerobically fermenting tank volume, is namely that the sediment mud mixture of 4% of anaerobically fermenting tank volume injects anaerobic fermentation tank from slag inlet at twice by total amount in 24h.The biogas produced in anaerobic fermentation process is discharged from the methane outlet of anaerobic fermentation tank, and enters methane boiler burning and make to produce steam in boiler, and gained steam is in order to heating hydrolysis reactor and anaerobic fermentation tank.
Penicillin mushroom dregs in Example 4, through the sediment of thermal hydrolysis and separating treatment gained and supernatant liquor, after Anaerobic Digestion, the natural pond slag of gained carries out detection and analyzes, and result is as shown in table 4 below:
Table 4
| Material | Penicillin Residues | Triumphant nitrogen remains | Amount of solid decrement |
| Penicillin mushroom dregs | 4923mg/kg | 18.9mg/g | |
| Thermal hydrolysis and separating treatment gained sediment | ﹤0.1mg/kg | 4640mg/L | 54.5% |
| Thermal hydrolysis and separating treatment gained supernatant liquor | ﹤0.1mg/kg | 5612mg/L | |
| Anaerobic Digestion gained natural pond slag | ＜0.05mg/kg | 4300mg/L | 70.1% |
From upper table 4, the penicillin mushroom dregs in embodiment 4 after thermal hydrolysis and separating treatment, Penicillin Residues clearance > 99.99%, solid decrement 54.5%, triumphant nitrogen abatement 50.9%; Penicillin mushroom dregs in embodiment 4 is after thermal hydrolysis and separating treatment and Anaerobic Digestion, and overall treatment effect is: Penicillin Residues clearance > 99.99%, solid decrement 70.1%.
Carried out the detection of Hazardous wastes identification beacon to the natural pond slag that the various embodiments described above produce, detected result display natural pond slag unhazardous waste, may be used for the raw material preparing agriculture fertilizer.
Claims (3)
1. a treatment process for penicillin mushroom dregs, is characterized in that comprising following processing step:
A, thermal hydrolysis and separating treatment: by penicillin mushroom dregs and water Homogeneous phase mixing, carry out constant temperature hydrolysis reaction, leave standstill at normal temperatures after completion of the reaction, carry out solid-liquid separation process, form supernatant liquor and sediment, supernatant liquor is introduced Conventional waste water treatment system and process, sediment is for subsequent use;
B, Anaerobic Digestion: first in anaerobic fermentation tank, inoculate anaerobic activated sludge, then the excess sludge that the sediment of steps A gained and biological wastewater treatment produce is mixed, obtain sediment mud mixture, and described sediment mud mixture is injected anaerobic fermentation tank, finally under agitation carry out ferment at constant temperature, in fermenting process, carry out row natural pond slag and feed operation;
The concrete reaction conditions of described steps A joins in reactor by the penicillin mushroom dregs 100 parts ~ 200 parts counted by weight, 400 parts ~ 800 parts, water; The temperature of hydrolysis reaction is 60 DEG C ~ 80 DEG C, and the time of hydrolysis reaction is 0.5h ~ 2.0h; Reaction product left standstill at normal temperatures after completion of the reaction, carry out solid-liquid separation process, time of repose is 15h ~ 25h; The solid content of gained sediment is 6% ~ 9%;
In described step B, in anaerobic fermentation tank, the injection rate of anaerobic activated sludge is 20% ~ 50% of anaerobically fermenting tank volume; In described sediment mud mixture, the volume ratio of the excess sludge that the sediment of steps A gained and biological wastewater treatment produce is 1:1 ~ 4:1; In anaerobic fermentation tank, the add-on of sediment mud mixture is 3% ~ 7% of anaerobically fermenting tank volume; The intensity of described stirring is 60rpm ~ 100rpm, and anaerobically fermenting temperature is 30 DEG C ~ 40 DEG C; Described row natural pond slag and feed operation are that continous way is carried out or intermittent type carries out;
The timed interval of described intermittent type row's natural pond slag and feed operation is 6h ~ 12h, and the row natural pond slag total amount of every 24h and charging total amount are 3% ~ 7% of anaerobically fermenting tank volume;
In the row natural pond slag that described continous way is carried out and feed operation, the row natural pond slag total amount of every 24h and charging total amount are 3% ~ 7% of anaerobically fermenting tank volume.
2. the treatment process of penicillin mushroom dregs according to claim 1, is characterized in that: by the biogas produced in described step B in order to produce steam, with the heat source of this steam as thermal hydrolysis and Anaerobic Digestion.
3. the treatment process of penicillin mushroom dregs according to claim 1, is characterized in that: carry out collecting also as the raw material preparing fertilizer to the natural pond slag that step B produces.
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| CN103820315B (en) * | 2014-03-07 | 2015-09-02 | 河北科技大学 | A kind of device and method of cephalosporin dreg harmless treatment |
| CN104212840B (en) * | 2014-09-03 | 2017-12-12 | 郑州大学 | A kind of processing method of antibiotic fermentation bacteria residue |
| CN104387183B (en) * | 2014-11-14 | 2016-08-24 | 砀山县沃福农业发展有限公司 | A kind of bio-organic fertilizer containing rice husk duck excrement and preparation method thereof |
| CN104593436A (en) * | 2015-03-03 | 2015-05-06 | 哈尔滨工业大学 | Pretreatment method for improving anaerobic biogas-production by penicillin slag |
| CN106216348A (en) * | 2016-06-30 | 2016-12-14 | 北京首创北科环境科技研究院有限公司 | A kind of bio-pharmaceuticals dreg catalytic oxidation treatment system and method |
| CN107119079B (en) * | 2017-07-03 | 2021-02-09 | 南京农业大学 | Method for mixed wet anaerobic digestion co-treatment of echinocandin bacterial residues and sludge |
| CN110041142A (en) * | 2019-05-31 | 2019-07-23 | 上海化工研究院有限公司 | A method of amino acid Water soluble fertilizer is prepared using antibiotic fermentation waste residue |
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| CN1041927A (en) * | 1988-10-15 | 1990-05-09 | 华北制药厂 | Method for the treatment of penicillin waste water |
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| CN1041927A (en) * | 1988-10-15 | 1990-05-09 | 华北制药厂 | Method for the treatment of penicillin waste water |
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