CN104016468A - Method for pretreating wastewater generated by cephalosporin antibiotics drugs - Google Patents
Method for pretreating wastewater generated by cephalosporin antibiotics drugs Download PDFInfo
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- CN104016468A CN104016468A CN201310066472.2A CN201310066472A CN104016468A CN 104016468 A CN104016468 A CN 104016468A CN 201310066472 A CN201310066472 A CN 201310066472A CN 104016468 A CN104016468 A CN 104016468A
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Abstract
The invention relates to a method for pretreating wastewater generated by cephalosporin antibiotics drugs. The problems that the intermittent operation time is long, the equipment volume is large, personnel protection is bad, secondary pollution is easily caused, manual metering is not accurate and the treatment endpoint cannot be effectively controlled in the prior art are mainly solved. By adoption of the technical scheme, the wastewater is automatically mixed by adopting a self-suction pipeline mixing reactor, and a degradation reagent is added according to a ratio, so that the degradation reagent is timely and effectively dispersed in the wastewater, the degradation reagent and the wastewater are fully contacted and mixed, the reaction solution is discharged to a subsequent wastewater treatment station for performing biochemical treatment after the pH value of the endpoint reaction solution is controlled to be more than or equal to 13, the problem is well solved, and the method can be applied to industrial production of pretreatment of wastewater generated by cephalosporin antibiotics drugs.
Description
Technical field
The present invention relates to a kind of cephalosporins drug manufacture pretreatment method for wastewater.
Background technology
Microbiotic is a kind of antibacterials conventional in people's daily life, is commonly used to treat various bacteriums infection or suppresses pathogenic microorganism infection.The mankind, from the nineteen twenties therapeutic action of discovery of penicillin first, have had been found that nearly ten thousand kinds of microbiotic up to now, and the antibiotics that is wherein used for the treatment of human diseases reaches nearly hundred kinds.
Cephalosporins is the semisynthetic antibiotics that contains cephem in molecule, and it belongs to β-lactam antibitics, is the derivative of the 7-amino-cephalosporanic acid (7-ACA) in β-lactam antibitics.Cynnematin is efficient, low toxicity, clinical application are extensive, have that has a broad antifungal spectrum, anti-microbial effect are strong, penicillin resistant enzyme, anaphylaxis be compared with advantages such as penicillins are rare, it not only can destroy the cell walls of bacterium, can also sterilization within the nursery stage of bacterium, and body is not almost had to toxicity, therefore clinical, be widely used.
Adopt the technique of chemosynthesis mode synthetic antibiotic, again referred to as semisynthetic antibiotics, most of cephalosporinses are all adopted in this way and are obtained, as cephalo azoles beautiful jade, Cephradine, cefoperazone, ceftriaxone etc.
In the production process of this type of semisynthetic antibiotics, reason due to production technique, inevitably can produce a large amount of organic liquid wastes, as the production process of cefazolin, starting raw material 7-ACA and thiadiazoles, acetic acid etc. at ethyl acetate, boron trifluoride, Glacial acetic acid, lay particular stress under the effect such as sulfurous acid, hydrochloric acid, sodium hydroxide, acetone, through polystep reaction, finally make cefazolin.In this production process, can produce a large amount of waste liquids, the content of COD is up to 3000～40000mg/L, and BOD5 content reaches 10000-15000mg/L.These waste liquids must pass through certain waste water treatment process, make its COD/BOD content reach the wastewater discharge standard of national regulation, can be discharged.
The waste water of production of antibiotics adopts biochemical method to process mostly at present.Document CN101746919A discloses the metabolism of utilizing microorganism, makes the organic pollutant that is dissolving and colloidal state in waste water be converted into innoxious substance.Biochemical treatment process can be divided into anaerobic biological treatment and aerobiont is processed, by cultivating specific anaerobism, become reconciled and support microorganism, make the long-chain microorganism (as celloglobulin) in waste water under the effect of microorganism, rupture and decompose, thereby reduced the content of the COD/BOD in waste water, and reached the emission concentration of national regulation.
Cephalosporin analog antibiotic factory effluent, except containing large amount of organic matter, remains the composition of cephalosporin analog antibiotic toward contact.Because cephalosporins is a kind of broad-spectrum antibiotics, it can destroy the cell walls of bacterium, and bacterium is lost activity.Therefore, containing cephalosporin analog antibiotic medicine waste water, must be in advance through DeR, remove the activity of cephalosporin composition, so just can enter follow-up biochemical treatment process, in anaerobism/well, support under the acting in conjunction of microorganism, carry out biochemical reaction, thereby reduce the content of the COD/BOD in its waste water, make it the emission standard that reaches national.
In conventional cephalosporins semisynthetic antibiotics is produced, to the waste water producing, can make the pH value of its solution be alkalescence by adding the method for sodium hydroxide solution at present, remove the biological activity of cephalosporin material.
But, in traditional chemical degradation method, add the process of sodium hydroxide mostly to adopt manual operation, whole process is all exposed in environment, add the quantity of alkali lye and mode, operative employee's safeguard procedures, the equal imperfection of the judgement of degradation results exists very large room for improvement.The shortcoming of this technique is: a) periodical operation, and purification tank for liquid waste volume expands; B) wastewater disposal basin opens wide, and is subject to rainwater impact, and overflow pollutes; C) alkali lye manually adds, metering out of true; D) processing terminal can not effectively control.
Summary of the invention
Technical problem to be solved by this invention is that prior art exists the periodical operation time long; equipment volume is large; personal protection is poor; easily cause secondary pollution; human metering out of true; process the problem that terminal can not effectively be controlled, a kind of new cephalosporins drug manufacture pretreatment method for wastewater is provided.The method can be processed continuously the waste water containing antibiotic activity composition producing in antibiotic medicine production process and can immediately degrade, and has guaranteed the safe and effective controlled of Wastewater Pretreatment process.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows: a kind of cephalosporins drug manufacture pretreatment method for wastewater, comprises the following steps:
A) provide auto-suction pipe mixing reactor, described auto-suction pipe mixing reactor comprises suction casing 1 and mixing section 2 successively along fluid flow direction; Suction casing 1 comprises fluid intake pipeline 3, suction chamber section 4 and expansion section 5; Fluid intake pipeline 3 stretches in suction chamber section 4, and end is punctured into taper shape; On the tube wall of suction chamber section 4, be provided with and suck logistics pipeline 6, the end that suction logistics pipeline 6 gos deep in suction chamber section 4 is provided with fluid distributor 7; On mixing section 2 tube walls, be provided with flow apron; Along fluid flow direction, the dead in line of fluid intake pipeline 3, suction chamber section 4, expansion section 5 and mixing section 2;
B) factory effluent containing cephalosporins medicine enters auto-suction pipe mixing reactor from fluid intake pipeline (3), and degraded medicine enters auto-suction pipe mixing reactor from sucking logistics pipeline (6); Described waste water and degraded medicine mix, react in auto-suction pipe mixing reactor;
C) ratio control device of wastewater flow, degraded drug flux is set, and in auto-suction pipe mixing reactor exit, automatic pH meter is set, by monitoring, export the pH value of reaction solution, the degraded medicine liquid measure that control adds, when outlet effluent stream keeps, behind pH >=13, draining into follow-up waste water processing station and carrying out biochemical treatment.
In technique scheme, the Length Ratio preferable range of the suction chamber section 4 of described auto-suction pipe mixing reactor, expansion section 5 and mixing section 2 is 1: (2～4): (10～20).Fluid intake pipeline 3 is 3～6 with the internal diameter of suction chamber section 4 than preferable range.Sucking logistics pipeline 6 is 5～10 with the internal diameter of suction chamber section 4 than preferable range.Suction chamber section 4, expansion section 5 are identical with the internal diameter of mixing section 2.The location optimization scope that described fluid distributor 7 gos deep into suction chamber section 4 is 1/4～1/2 of suction chamber section 4 internal diameters.Described fluid distributor 7 preferred versions are the hollow cavity 72 of semisphere that comprises feed-pipe 71 and its end, on the hollow cavity 72 of semisphere, are provided with at least one circular hole; Wherein, the central axis of the hollow cavity 72 of semisphere and the angle theta preferable range of fluid flow direction are 120 °～135 °.The diameter D of feed-pipe 71
1diameter D with the hollow cavity 72 of semisphere
2preferred version is for meeting D
1/ D
2≤ 0.5, on the hollow cavity 72 of semisphere, the quantity n of circular hole and the diameter d preferred version of circular hole are for meeting (D
1/ d)
2≤ n≤0.5 (D
2/ d)
2.On the hollow cavity 72 of semisphere, the diameter d preferable range of circular hole is 1～4 millimeter, and more preferably scope is 2～3 millimeters.According to containing the factory effluent characteristic of a full constituents, the selected degraded medicine concentration that is weight percentage is 2～5% NaOH solution.Cephalosporins medicine preferred version is for being selected from cephalo azoles beautiful jade, Cephradine, cefoperazone or ceftriaxone.
Venturi effect, refers near swiftly flowing fluid and can produce low pressure, thereby produces adsorption.This phenomenon is with its discoverer's Italy's physicist's Venturi (Giovanni Battista Venturi) name, so the Venturi effect of crying.The equipment of making according to this effect, is again Venturi tube.Venturi tube is used widely at industrial circle at present, as the water-jetting type vacuum pump for generation of vacuum, utilizes exactly venturi principle to produce vacuum.
Auto-suction pipe mixing reactor in the inventive method, suction casing essence is wherein Venturi tube, by Venturi effect, makes by Venturi tube, to produce negative pressure, the medicine intake system of degrading containing the factory effluent of cephalosporins medicine.Then in follow-up line mixer, carry out the raw reaction of abundant hybrid concurrency, its outlet obtains reaction product.The proportioning of two kinds of fluids can regulate by imported valve, makes it meet the requirement of reactant ratio.
In the inventive method, the suction casing 1 of auto-suction pipe mixing reactor, a fluid distributor 7 is set, by the aperture of particular design, degraded medicine is dispersed into tiny liquid stream in advance, when main streams waste water high speed flow out-of-date, produce negative pressure, be inhaled into material under the effect of negative pressure, by decollator, disperse to form the streams of several strands tiny at a high speed, and flow to into mixing section 2 with principal goods material.Under flow apron effect in mixing section, fluid is by further dispersion, mixing, shock etc., thereby completed hybrid reaction process.Wherein, on fluid distributor the diameter d of small sircle hole be inhaled into the viscosity, density, solid content of fluid, degree of scatter in main fluid, relevant with the factors such as mutual solubility of main fluid.Diameter is too little, can increase resistance to flow, slowing down fluid mixing velocity, and easily blocked.And diameter is too large, can not play the effect of prior dispersion.General diameter preferable range can be 1～4 millimeter, and more preferably scope is 2～3 millimeters.The quantity n of small sircle hole, relevant with the surface-area of suction velocity and the hollow cavity of dome-type, quantity very little, because the tiny amount of fluid forming is less, makes fluid soakage little, and pre-mixing is insufficient.And quantity is too many, affect the intensity of hollow cavity.N must meet: (D
1/ d)
2≤ n≤0.5 (D
2/ d)
2.
The inventive method is after suction casing increases fluid distributor, the medicine that makes to degrade can be dispersed into the streams of several strands tiny in advance, strengthened its degree of scatter in waste water streams, both contacts area have been increased, shortened and reached well-mixed time (time can reduce 30～60%), the carrying out of favourable follow-up hybrid reaction.After having adopted special fluid distributor, due to the shortening of mixing time, can greatly reduce the physical length of mixing tank simultaneously, facilitate the installation of mixing tank, reduce the investment of mixing tank.
The inventive method has adopted automatic pipeline to mix and reaction technology, in the auto-suction pipe mixing reactor of particular design, by containing cephalosporins medicine waste water and sodium hydroxide solution, automatically by certain proportioning, in pipeline reactor, mix fully, react, final by the judgement of reaction end pH value, automatically stop hybrid reaction process, completed the pre-treatment degradation process of waste water, for follow-up wastewater treatment qualified discharge is laid a good foundation.Whole process stabilizing, efficient, energy-conservation, and operation automatically under controllable state, obtained good technique effect.
Accompanying drawing explanation
Fig. 1 is the inventive method schematic flow sheet.
The auto-suction pipe mixing reactor schematic diagram using in Fig. 2 the inventive method.
Fig. 3 is the fluid distributor schematic diagram in auto-suction pipe mixing reactor.
In Fig. 1,8 is waste water streams, and 9 is the logistics of degraded medicine, and 10 is reacted logistics, and 12 is waste water basin, and 13 is degraded medicine basin, and 14 is auto-suction pipe mixing reactor.
In Fig. 2,1 is suction casing, and 2 is mixing section, and 3 is fluid intake pipeline, and 4 is suction chamber section, and 5 is expansion section, and 6 for sucking logistics pipeline, and 7 is fluid distributor, and 11 is flow apron.
In Fig. 3,71 is feed-pipe, and 72 is the hollow cavity of semisphere, and θ is the central axis of the hollow cavity 72 of semisphere and the angle of fluid flow direction.
After waste water basin, be furnished with a transferpump for tank liquid level interlock therewith, waste liquid is delivered to auto-suction pipe mixing reactor.Be provided with degraded medicine basin, corrosion resisting centrifugal pump and the ratio adjusting valve of energy degrading waste water.When reactor of the present invention is used, main streams 8 enters reactor suction casing 1 from fluid intake pipeline 3 at a high speed containing antibiotic waste water, will suck logistics 9 sodium hydroxide solutions and suck from sucking logistics pipeline 6.Due to the dissemination of fluid distributor, the sodium hydroxide liquid of suction is dispersed into the streams of several strands tiny after by fluid distributor, and flows to into mixing section 2 with principal goods material.In mixing section, under the effect of flow apron, fluid, by further dispersion, mixing, turbulent flow and shock, reaches well-mixed effect.By being arranged on the pH detection instrument of line-blending reactor discharge port, the pH value of detection reaction liquid, by regulating the open degree of the ratio adjusting valve on sodium hydroxide flow in pipes 6, make reactor outlet mixed solution 10 remain at pH >=13, so that waste water loses activity, and then drain into follow-up waste water processing station and carry out biochemical treatment, until qualified discharge.
Below by embodiment, the invention will be further elaborated.
Embodiment
[embodiment 1]
Adopt auto-suction pipe mixing reactor of the present invention to process containing cephalo azoles beautiful jade class antibiotic waste water.Dissemination due to sparger, the 4% weight percent sodium hydroxide liquid sucking is tiny shape after by fluid distributor and mixes with waste water, and then after further mixing by follow-up line mixer, after pH meets the requirements after measured, (pH value >=13) can directly enter follow-up biochemical treatment station and further process.
The overall length of whole suction mixing reactor is 2m, mixing section diameter 100mm, and built-in corrugated filler, valid circulation area is 50%.The Length Ratio of suction chamber section 4, expansion section 5 and mixing section 2 is 1: 3: 15, fluid intake pipeline 3 diameter 25mm, the internal diameter of suction chamber section 4 is 100mm, ratio between two is 4, sucking logistics pipeline 6 diameters is 15mm, with the internal diameter ratio of suction chamber section 4 be 6.7.The flow velocity of pending waste water in mixing section is 0.2m/s.Waste water from suction casing to the whole residence time of discharging section be only 10s, can reach and mix effect.Whole device is per hour can Continuous Wastewater Treatment amount 3m
3/ h.
The position that fluid distributor 7 gos deep into suction chamber section 4 is 1/3 of suction chamber section 4 internal diameters.On the hollow cavity 72 of semisphere of fluid distributor 7, be provided with n=40 circular hole, the diameter of circular hole is d=3mm, the central axis of the hollow cavity 72 of semisphere and angle theta=120 ° of fluid flow direction.The diameter D of feed-pipe 71
1=15mm, the diameter D of the hollow cavity 72 of semisphere
2=30mm, meets D
1/d
2≤ 0.5 and (D
1/ d)
2≤ n≤0.5 (D
2/ d)
2.) mutual relationship.
[embodiment 2]
The same cephalo azoles beautiful jade class production of antibiotics waste water of processing, treatment process is with [embodiment 1], and treatment capacity requires to reach 10m
3/ h.The overall length of whole suction mixing reactor is 2.6m, mixing section diameter 125mm, and built-in corrugated filler, valid circulation area is 50%.The Length Ratio of suction chamber section 4, expansion section 5 and mixing section 2 is 1: 3: 15, fluid intake pipeline 3 diameter 40mm, the internal diameter of suction chamber section 4 is 125mm, ratio between two is 40:125=3, sucking logistics pipeline 6 diameters is 15mm, with the internal diameter ratio of suction chamber section 4 be 15: 125=1: 8.3.
The position that fluid distributor 7 gos deep into suction chamber section 4 is 1/3 of suction chamber section 4 internal diameters.On the hollow cavity 72 of semisphere of fluid distributor 7, be provided with n=60 circular hole, the diameter of circular hole is d=3mm, the central axis of the hollow cavity 72 of semisphere and angle theta=135 ° of fluid flow direction.The diameter D of feed-pipe 71
1=15mm, the diameter D of the hollow cavity 72 of semisphere
2=40mm, meets D
1/d
2≤ 0.5 and (D
1/ d)
2≤ n≤0.5 (D
2/ d)
2.) mutual relationship.
Waste water from suction casing to the whole residence time of discharging section be 4.8s, can reach and mix effect.Whole device is per hour can Continuous Wastewater Treatment amount 10m
3, mixing section inner fluid speed is 0.45m/s.
[embodiment 3]
Process waste water classification and technique with example 1,2, treatment capacity is increased to 20m
3/ h.The overall length of whole suction mixing reactor is 2.6m, mixing section diameter 200mm, and built-in corrugated filler, valid circulation area is 50%.The Length Ratio of suction chamber section 4, expansion section 5 and mixing section 2 is 1: 4: 21, fluid intake pipeline 3 diameter 50mm, the internal diameter of suction chamber section 4 is 200mm, ratio between two is 4, sucking logistics pipeline 6 diameters is 20mm, with the internal diameter ratio of suction chamber section 4 be 20: 200=1: 10.
The position that fluid distributor 7 gos deep into suction chamber section 4 is 1/2 of suction chamber section 4 internal diameters.On the hollow cavity 72 of semisphere of fluid distributor 7, be provided with n=60 circular hole, the diameter of circular hole is d=4mm, the central axis of the hollow cavity 72 of semisphere and angle theta=120 ° of fluid flow direction.The diameter D of feed-pipe 71
1=20mm, the diameter D of the hollow cavity 72 of semisphere
2=50mm, meets D
1/d
2≤ 0.5 and (D
1/ d)
2≤ n≤0.5 (D
2/ d)
2.) mutual relationship.
The about 0.4m/s of mixing section inner fluid speed, waste water from suction casing to the whole residence time of discharging section be 6.5s, can reach and mix effect.Whole device is per hour can Continuous Wastewater Treatment 20m
3.
[comparative example 1]
Directly adopt common Venturi tube (not being with follow-up line mixer), waste water is sent into Venturi tube through force (forcing) pump, and sodium hydroxide lye mixes with waste water after being inhaled into by Venturi effect.Because Venturi tube only plays material suction function, the pH of actual measurement discharging liquid presents fluctuation situation, illustrates that mixed effect is not good, so must increase a mixing tank, after being uniformly mixed and making the pH value stabilization of mixed solution and meet the requirements, then deliver to waste water processing station and carry out biochemical treatment.Because waste liquid need be mixing in-tank mixing, so whole process cannot complete continuously.
[comparative example 2]
Adopt the auto-suction pipe mixing reactor of [embodiment 3], processing per hour is containing a full waste water 20m
3.Owing to sucking the end of logistics pipeline 6, fluid distributor is not set.Think the abundant mixing that reaches fluid, need to increase liquid mixing time to the above guarantee of 20s outlet liquid pH value and be stabilized in more than 13.Now the length ratio of suction casing, expansion section and mixing section need reach 1: 4: 75, just can make the material pH of discharge end be stabilized in preset value.Thereby reach the effect of abundant hybrid reaction.Because length of mixing increases, equipment is taken up an area and also corresponding increase of investment.
Claims (10)
1. a cephalosporins drug manufacture pretreatment method for wastewater, comprises the following steps:
A) provide auto-suction pipe mixing reactor, described auto-suction pipe mixing reactor comprises suction casing (1) and mixing section (2) successively along fluid flow direction; Suction casing (1) comprises fluid intake pipeline (3), suction chamber section (4) and expansion section (5); Fluid intake pipeline (3) stretches in suction chamber section (4), and end is punctured into taper shape; On the tube wall of suction chamber section (4), be provided with and suck logistics pipeline (6), the end that suction logistics pipeline (6) gos deep in suction chamber section (4) is provided with fluid distributor (7); On mixing section (2) tube wall, be provided with flow apron; Along fluid flow direction, the dead in line of fluid intake pipeline (3), suction chamber section (4), expansion section (5) and mixing section (2);
B) factory effluent containing cephalosporins medicine enters auto-suction pipe mixing reactor from fluid intake pipeline (3), and degraded medicine enters auto-suction pipe mixing reactor from sucking logistics pipeline (6); Described waste water and degraded medicine mix, react in auto-suction pipe mixing reactor;
C) ratio control device of wastewater flow, degraded drug flux is set, and in auto-suction pipe mixing reactor exit, automatic pH meter is set, by monitoring, export the pH value of reaction solution, the degraded medicine liquid measure that control adds, when outlet effluent stream keeps, behind pH >=13, draining into follow-up waste water processing station and carrying out biochemical treatment.
2. cephalosporins drug manufacture pretreatment method for wastewater according to claim 1, is characterized in that containing the factory effluent of cephalosporins medicine and the weight ratio of degraded medicine be (5: 1)～(50: 1).
3. cephalosporins drug manufacture pretreatment method for wastewater according to claim 1, is characterized in that the Length Ratio of suction chamber section (4), expansion section (5) and the mixing section (2) of described auto-suction pipe mixing reactor is 1: (2～4): (10～20); Fluid intake pipeline (3) is 3～6 with the internal diameter ratio of suction chamber section (4); Sucking logistics pipeline (6) is 5～10 with the internal diameter ratio of suction chamber section (4); Suction chamber section (4), expansion section (5) are identical with the internal diameter of mixing section (2).
4. cephalosporins drug manufacture pretreatment method for wastewater according to claim 1, is characterized in that the position that described fluid distributor (7) gos deep into suction chamber section (4) is 1/4～1/2 of suction chamber section (4) internal diameter.
5. cephalosporins drug manufacture pretreatment method for wastewater according to claim 1, it is characterized in that described fluid distributor (7) comprises the hollow cavity of semisphere (72) of feed-pipe (71) and its end, is provided with at least one circular hole on the hollow cavity of semisphere (72); Wherein, the central axis of the hollow cavity of semisphere (72) and angle theta=120 of fluid flow direction °～135 °.
6. cephalosporins drug manufacture pretreatment method for wastewater according to claim 5, is characterized in that the diameter D of feed-pipe (71)
1diameter D with the hollow cavity of semisphere (72)
2meet D
1/ D
2≤ 0.5, the upper quantity n of circular hole of the hollow cavity of semisphere (72) and the diameter d of circular hole meet (D
1/ d)
2≤ n≤0.5 (D
2/ d)
2.
7. cephalosporins drug manufacture pretreatment method for wastewater according to claim 6, is characterized in that above diameter d=1～4 millimeter of circular hole of the hollow cavity of semisphere (72).
8. cephalosporins drug manufacture pretreatment method for wastewater according to claim 7, is characterized in that above diameter d=2～3 millimeter of circular hole of the hollow cavity of semisphere (72).
9. cephalosporins drug manufacture pretreatment method for wastewater according to claim 1, is characterized in that the described degraded medicine concentration that is weight percentage is 2～5% NaOH solution.
10. cephalosporins drug manufacture pretreatment method for wastewater according to claim 1, is characterized in that described cephalosporins medicine is selected from cephalo azoles beautiful jade, Cephradine, cefoperazone or ceftriaxone.
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|---|---|---|---|
| CN201310066472.2A CN104016468B (en) | 2013-03-01 | 2013-03-01 | Cephalosporins drug manufacture pretreatment method for wastewater |
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| CN104016468B CN104016468B (en) | 2016-04-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109704942A (en) * | 2018-12-29 | 2019-05-03 | 山东罗欣药业集团股份有限公司 | A kind of method of cephalosporins medicine disposing mother liquor methanol and acetone |
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| CN103706319A (en) * | 2012-10-08 | 2014-04-09 | 中国石油化工集团公司 | Self-suction pipeline mixing reactor |
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2013
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| US5037616A (en) * | 1987-10-14 | 1991-08-06 | Compagnie De Raffinage Et De Distribution Total France | Device for injection of a hydrocarbon feedstock into a catalytic cracking reactor |
| CN1095695A (en) * | 1993-05-27 | 1994-11-30 | 中国纺织大学 | The biochemical treatment of antibiotic waste water |
| CN101157510A (en) * | 2007-09-19 | 2008-04-09 | 北京盖雅环境科技有限公司 | Process for treating antibiotic waste water and usage thereof |
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| CN109704942A (en) * | 2018-12-29 | 2019-05-03 | 山东罗欣药业集团股份有限公司 | A kind of method of cephalosporins medicine disposing mother liquor methanol and acetone |
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