CN102826722A - Treatment method for wastewater generated by producing cephalosporin medicines - Google Patents

Treatment method for wastewater generated by producing cephalosporin medicines Download PDF

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Publication number
CN102826722A
CN102826722A CN2012103493603A CN201210349360A CN102826722A CN 102826722 A CN102826722 A CN 102826722A CN 2012103493603 A CN2012103493603 A CN 2012103493603A CN 201210349360 A CN201210349360 A CN 201210349360A CN 102826722 A CN102826722 A CN 102826722A
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waste water
hydrolysis
wastewater
water
producing
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CN102826722B (en
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徐畅
齐元峰
戴碧波
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JIANGSU ATK ENVIRONMENTAL ENGINEERING Ltd
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ATK Holdings Group Co Ltd
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Abstract

The invention provides a treatment method for wastewater generated by producing cephalosporin medicines. The method comprises three treatment steps of as anoxic hydrolytic acidification, electrolysis and membrane bioreactor treatment. Specifically, the method comprises the following steps of: (1) firstly carrying out biological hydrolytic acidification on the wastewater generated by producing cephalosporin synthesis pharmacy in an anaerobic pond, so that the biodegradability of the wastewater can be improved; (2) electrolyzing the discharged water of the step (1) in an electrolytic tank, so that COD (chemical oxygen demand) can be further removed, and the biodegradability of the wastewater can be improved; and (3) enabling the discharged out of the step (2) to flow into the membrane bioreactor for the final aerobiotic biotreatment, wherein the treated wastewater is pumped by a water outlet pump through an ultrafiltration membrane in the membrane bioreactor, and is discharged to an external discharge pipeline or recycled in a production technology after reaching the standard.

Description

A kind of to producing the wastewater produced treatment process of cephalosporins medicine
Technical field
The present invention relates to a kind of wastewater produced treatment process of medicine of producing, relate to a kind of wastewater produced treatment process of cephalosporins medicine of producing especially.
Background technology
Production of antibiotics waste water is one type of high density, contain the organic waste water of multiple hardly degraded organic substance and bio-toxicity material.States such as America and Europe just handled its waste water when 20th century, produced penicillium mould the forties, but failed good terms of settlement always.Rise the seventies in 20th century, and developed country shifts large conventional medicine production to developing country, so China has begun the research and the application of relevant production of antibiotics wastewater processing technology.Compare with other microbiotic, cephalosporin analog antibiotic has characteristics such as has a broad antifungal spectrum, anti-microbial activity is strong, curative effect is high, spinoff is little, in the classes of anti-infective drug market, occupies critical role.The production of cephalosporin analog antibiotic is to adopt microbe fermentation method to obtain cynnematin, adopts chemosynthesis to carry out the production of midbody, bulk drug again, and consequent synthetic wastewater has characteristics such as COD height, complicated component, biodegradability difference.
Can reduce following several kinds in the technology of administering the production waste water that cephalosporins medicine produced at present:
(1) the materialization treatment technology comprises flocculation sediment, electrolysis, and the Fenton reagent oxidation is handled, membrane separation technique etc.(2) biologic treating technique comprises aerobic treatment method (traditional activated sludge process), anaerobic treatment method, anaerobic-aerobic combination process, acidication-aerobic combination process etc.In addition; Membrane bioreactor (MBR) can be kept microorganism concn because it divides reason effective, and is strong to influent load flexibility; Excess sludge production is few; Characteristics such as floor space is little receive publicity in water treatment field more and more, in the treatment process to cephalosporin waste water, the instance that uses the MBR technology are arranged also.
In Chinese patent publication number CN101434437, disclose the wastewater produced treatment process of a kind of cephalosporin synthesis pharmaceutical, the present invention makes on its basis.
Summary of the invention
In order to reach better water treatment effect, we through test of many times, find that therein specific link carries out the effect that the illumination of specific wavelength can significantly improve water treatment on the basis of the cephalosporin waste water treatment process of routine.Concrete technology is following:
By the anaerobic hydrolysis acidifying, these three treatment steps of electrolysis and Membrane Bioreactor for Wastewater Treatment constitute.
(1) waste water that produces in the cephalosporin synthesis pharmaceutical production carries out earlier the biological hydrolysis acidifying in anoxic pond, improve the biodegradability of waste water;
(2) electrolysis is carried out in the water outlet of step (1) in electrolyzer, further removes COD, improves the biodegradability of waste water;
(3) water outlet of step (2) flows into and to carry out final aerobe in the membrane bioreactor and handle, and the waste water after the processing pumps out by going out water pump through the ultra-filtration membrane in the membrane bioreactor, and qualified discharge is to outer discharge pipe or be back to use in the production technique.
Specifically, the biological hydrolysis acidifying of above-mentioned steps (1) comprises hydrolysis stage and souring stage, and these two stages are accomplished anaerobic digestion by acidification bacteria.The acidication bacterium utilizes water power to leave hydrogen ion and hydroxide radical is opened the carbon bond in the organic molecule in this course, can long-chain be hydrolyzed to short chain, and side chain is hydrolyzed to straight chain, opens ring texture, thereby is that the processing of ensuing aerobe is ready.
Preferably, at hydrolysis and souring stage, hydrolysis acidification pool is carried out omnidistance illumination.
More preferably, at hydrolysis and souring stage, hydrolysis acidification pool is carried out omnidistance infrared light irradiation.
Most preferably, at hydrolysis and souring stage, hydrolysis acidification pool is carried out the infrared light irradiation of omnidistance light wave scope at 1100~2500nm.
Electrolysis step in the above-mentioned steps (2) is taked iron charcoal internal electrolysis; In waste water, drop into iron filings and air-blowing in waste water simultaneously; Can in waste water, form countless small galvanic cells like this; Redox reaction taking place, produce divalence and ferric ion simultaneously, produces the flocculation sediment effect thereby in waste water, form colloid.After these deposition removals, effluent can get into step (3) and handle.
Membrane bioreactor in the above-mentioned steps (3) is made up of aeration zone and membrane filtration district; The aeration zone adopts the disc type micro porous aeration head to carry out aeration; Ultra-filtration membrane is placed on the membrane filtration district, and through the waste water after aerobic contact oxidation, the anaerobic hydrolysis acidification, organism wherein is basically by biological degradation; Waste water is extracted out through in the ultra-filtration membrane, and the mikrobe in the reactor drum is blocked in the reactor drum.
Inventive point of the present invention mainly is to have introduced illumination in the acidication stage; This illumination operation has significant lifting (concrete experimental data see after literary composition) to the effect of acidication; And can increase work-ing life of membrane bioreactor, reduce the use cost of membrane bioreactor.Thereby promoted the quality of water treatment on the one hand, reduced the cost of whole process flow on the other hand.
Embodiment
The analytical procedure of using among the present invention: adopt potassium dichromate process to measure COD; Adopt the dilution inoculation method to measure BOD 5Adopt Potassium Persulphate oxidation---determined by ultraviolet spectrophotometry total nitrogen (TN); Adopt molybdenum-antimony anti-spectrophotometric method to measure total phosphorus (TP), adopt the filter paper filtering weighting method to measure suspended substance (SS).
Embodiment 1
Wastewater from cephalosporin synthesis pharmaceutical production 415m 3/ d, the COD value 8000mg/l of water inlet, the BOD of water inlet 5Value 740mg/l, the TN value 480mg/l of water inlet, the value 85mg/l of the TP of water inlet, the SS value 110mg/l of water inlet.
Through the balanced water quality and quantity of equalizing tank and after regulating the pH value, be introduced into hydrolysis acidification pool, be 3 hours at the hydraulic detention time of hydrolysis acidification pool, and above hydrolysis acidification pool, set up light source that whole process is carried out the irradiation that wavelength is the 2200nm infrared light.The COD value 4500mg/l of hydrolysis acidification pool water outlet, the BOD of water outlet 5Value 550mg/l, the TN value 275mg/l of water outlet, the value 58mg/l of the TP of water outlet, the SS value 50mg/l of water outlet.
Water after acidication is handled gets into electrolyzer, presses iron filings 2kg/m in the electrolyzer 3Ratio throw in, hydraulic detention time is 10 hours, and in operation process, uses gas blower in the pond, to be blown into air, thereby guarantees in the water of electrolyzer competent oxygen is arranged.
Membrane bioreactor is advanced in water outlet in the electrolyzer, and the residence time of waste water in membrane bioreactor is 20 hours, and volumetric loading is 6kgCOD/m 3.d, sludge concentration is 7-11g/l, and membrane flux is 15L/m 2.h, resistance of membrane filtration is less than 25kPa; COD value≤the 50mg/l of water outlet, the BOD of water outlet 5Value≤8mg/l, the TN value 156mg/l of water outlet, the value 13mg/l of the TP of water outlet, the SS value of water outlet does not detect.
Embodiment 2
Wastewater from cephalosporin synthesis pharmaceutical production 200m 3/ d, the COD value 13000mg/l of water inlet, the BOD of water inlet 5Value 950mg/l, the TN value 625mg/l of water inlet, the value 112mg/l of the TP of water inlet, the SS value 145mg/l of water inlet.
Through the balanced water quality and quantity of equalizing tank and after regulating the pH value, be introduced into hydrolysis acidification pool, be 4.5 hours at the hydraulic detention time of hydrolysis acidification pool, and above hydrolysis acidification pool, set up light source that whole process is carried out the irradiation that wavelength is the 1500nm infrared light.The COD value 6000mg/l of hydrolysis acidification pool water outlet, the BOD of water outlet 5Value 440mg/l, the TN value 315mg/l of water outlet, the value 74mg/l of the TP of water outlet, the SS value 90mg/l of water outlet.
Water after acidication is handled gets into electrolyzer, presses iron filings 2kg/m in the electrolyzer 3Ratio throw in, hydraulic detention time is 10 hours, and in operation process, uses gas blower in the pond, to be blown into air, thereby guarantees in the water of electrolyzer competent oxygen is arranged.
Membrane bioreactor is advanced in water outlet in the electrolyzer, and the residence time of waste water in membrane bioreactor is 20 hours, and volumetric loading is 6kgCOD/m 3.d, sludge concentration is 7-11g/l, and membrane flux is 15L/m 2.h, resistance of membrane filtration is less than 25kPa; COD value≤the 70mg/l of water outlet, the BOD of water outlet 5Value≤10mg/l, the TN value 146mg/l of water outlet, the value 14mg/l of the TP of water outlet, the SS value of water outlet does not detect.
Embodiment 3
Wastewater from cephalosporin synthesis pharmaceutical production 300m 3/ d, the COD value 3000mg/l of water inlet, the BOD of water inlet 5Value 410mg/l, the TN value 380mg/l of water inlet, the value 86mg/l of the TP of water inlet, the SS value 104mg/l of water inlet.
Through the balanced water quality and quantity of equalizing tank and after regulating the pH value, be introduced into hydrolysis acidification pool, be 2.5 hours at the hydraulic detention time of hydrolysis acidification pool, and above hydrolysis acidification pool, set up light source that whole process is carried out the irradiation that wavelength is the 1100nm infrared light.The COD value 1300mg/l of hydrolysis acidification pool water outlet, the BOD of water outlet 5Value 270mg/l, the TN value 198mg/l of water outlet, the value 52mg/l of the TP of water outlet, the SS value 61mg/l of water outlet.
Water after acidication is handled gets into electrolyzer, presses iron filings 2kg/m in the electrolyzer 3Ratio throw in, hydraulic detention time is 10 hours, and in operation process, uses gas blower in the pond, to be blown into air, thereby guarantees in the water of electrolyzer competent oxygen is arranged.
Membrane bioreactor is advanced in water outlet in the electrolyzer, and 18 hours residence time in membrane bioreactor of waste water, volumetric loading is 6kgCOD/m 3.d, sludge concentration is 7-11g/l, and membrane flux is 15L/m 2.h, resistance of membrane filtration is less than 25kPa; COD value≤the 45mg/l of water outlet, the BOD of water outlet 5Value≤8mg/l, the TN value 108mg/l of water outlet, the value 21mg/l of the TP of water outlet, the SS value of water outlet does not detect.
Table 1 is the experimental data tabulation of carrying out the illumination experiment in the acidication process.From the data of table 1, can see, adopt illumination COD clearance, BOD afterwards 5Clearance and SS clearance all are significantly increased, and the clearance of TN and TP slightly improves.And can find out that when adopting the far red light irradiation, clearance is the highest, effect is best.Explain that photo-irradiation treatment has produced significant effect.Playing the reason of effect and analyze theoretically, possibly be because illumination has produced influence to acting microbial growth metabolism in the acidication process, and the result of acidication has been produced influence.And the illumination of different wave length is variant to the microbial growth metabolic effect, therefore can draw best irradiates light wave band through experiment.
Table 1, annotate: above-mentioned data are the MV and the variance of 4 repeated experiments.
Those skilled in the art can make replacement or modification to content of the present invention according to content disclosed by the invention and the art technology of being grasped; But these replacements or modification should not be regarded as breaking away from the present invention's design, and these replacements or modification are all in the interest field that the present invention requires to protect.

Claims (6)

1. one kind to producing the wastewater produced treatment process of cephalosporins medicine, it is characterized in that this method by the anaerobic hydrolysis acidifying, these three treatment steps formations of electrolysis and Membrane Bioreactor for Wastewater Treatment,
The waste water that produces in step (1) the cephalosporin synthesis pharmaceutical production carries out earlier the biological hydrolysis acidifying in anoxic pond, improve the biodegradability of waste water;
Step (2) is carried out electrolysis with the water outlet of step (1) in electrolyzer, further remove COD, improves the biodegradability of waste water;
Step (3) flows into the water outlet of step (2) carries out final aerobe and handles in the membrane bioreactor, the waste water after the processing pumps out by going out water pump through the ultra-filtration membrane in the membrane bioreactor, and qualified discharge is to outer discharge pipe or be back to use in the production technique.
2. a kind of described in the claim 1 is characterized in that to producing the wastewater produced treatment process of cephalosporins medicine the biological hydrolysis acidifying in the step (1) comprises hydrolysis stage and souring stage, at hydrolysis and souring stage, hydrolysis acidification pool carried out omnidistance illumination.
3. a kind of described in the claim 2 is characterized in that at hydrolysis and souring stage producing the wastewater produced treatment process of cephalosporins medicine, and hydrolysis acidification pool is carried out omnidistance infrared light irradiation.
4. a kind of described in the claim 2 is characterized in that at hydrolysis and souring stage producing the wastewater produced treatment process of cephalosporins medicine, and hydrolysis acidification pool is carried out the infrared light irradiation of omnidistance light wave scope at 1100~2500nm.
5. a kind of described in the claim 2 to producing the wastewater produced treatment process of cephalosporins medicine; It is characterized in that wherein said electrolysis step takes iron charcoal internal electrolysis; In waste water, drop into iron filings and air-blowing in waste water simultaneously, thereby in waste water, form countless small galvanic cells, redox reaction takes place; Produce divalence and ferric ion simultaneously, in waste water, form colloid and produce the flocculation sediment effect.
6. a kind of to producing the wastewater produced treatment process of cephalosporins medicine described in the claim 2 is characterized in that wherein iron filings are by 2kg/m 3Ratio throw in, the residence time of waste water in membrane bioreactor is 19 hours, volumetric loading is 6kgCOD/m 3.d, sludge concentration is 7-11g/l, and membrane flux is 15L/m 2.h, resistance of membrane filtration is less than 25kPa.
CN201210349360.3A 2012-09-20 2012-09-20 Treatment method for wastewater generated by producing cephalosporin medicines Expired - Fee Related CN102826722B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104773919A (en) * 2015-04-08 2015-07-15 常州大学 Pharmaceutical wastewater advanced treatment system
CN106007186A (en) * 2016-06-28 2016-10-12 焦作健康元生物制品有限公司 7-aminocephalosporanic acid production wastewater treatment method
CN107032495A (en) * 2017-05-22 2017-08-11 大连理工大学 A kind of biological treatment group technology of the high salinity pharmacy waste waters of high COD

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000237770A (en) * 1999-02-17 2000-09-05 Ebara Corp Purifying method for water by powdery activated carbon and photocatalyst
CN101434437A (en) * 2008-12-02 2009-05-20 浙江双益环保科技发展有限公司 Processing method for wastewater from cephalosporin synthesis pharmaceutical production
CN101941749A (en) * 2010-09-27 2011-01-12 中国环境科学研究院 Method for treating high-concentration copper-containing antibiotic wastewater and recovering copper by iron-carbon micro-electrolysis
CN102372401A (en) * 2011-09-28 2012-03-14 同济大学 Iron-carbon micro-electrolysis-dynamic membrane wastewater deep treatment process
CN102531273A (en) * 2010-12-31 2012-07-04 上海轻工业研究所有限公司 Treatment equipment for ammonia nitrogen and COD (Chemical Oxygen Demand) in surface treatment waste water

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000237770A (en) * 1999-02-17 2000-09-05 Ebara Corp Purifying method for water by powdery activated carbon and photocatalyst
CN101434437A (en) * 2008-12-02 2009-05-20 浙江双益环保科技发展有限公司 Processing method for wastewater from cephalosporin synthesis pharmaceutical production
CN101941749A (en) * 2010-09-27 2011-01-12 中国环境科学研究院 Method for treating high-concentration copper-containing antibiotic wastewater and recovering copper by iron-carbon micro-electrolysis
CN102531273A (en) * 2010-12-31 2012-07-04 上海轻工业研究所有限公司 Treatment equipment for ammonia nitrogen and COD (Chemical Oxygen Demand) in surface treatment waste water
CN102372401A (en) * 2011-09-28 2012-03-14 同济大学 Iron-carbon micro-electrolysis-dynamic membrane wastewater deep treatment process

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104773919A (en) * 2015-04-08 2015-07-15 常州大学 Pharmaceutical wastewater advanced treatment system
CN104773919B (en) * 2015-04-08 2016-06-29 常州大学 A kind of pharmacy waste water advanced treatment system
CN106007186A (en) * 2016-06-28 2016-10-12 焦作健康元生物制品有限公司 7-aminocephalosporanic acid production wastewater treatment method
CN107032495A (en) * 2017-05-22 2017-08-11 大连理工大学 A kind of biological treatment group technology of the high salinity pharmacy waste waters of high COD

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