CN101434437B - Processing method for wastewater from cephalosporin synthesis pharmaceutical production - Google Patents
Processing method for wastewater from cephalosporin synthesis pharmaceutical production Download PDFInfo
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- CN101434437B CN101434437B CN2008101628506A CN200810162850A CN101434437B CN 101434437 B CN101434437 B CN 101434437B CN 2008101628506 A CN2008101628506 A CN 2008101628506A CN 200810162850 A CN200810162850 A CN 200810162850A CN 101434437 B CN101434437 B CN 101434437B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 230000015572 biosynthetic process Effects 0.000 title claims description 14
- 150000001780 cephalosporins Chemical class 0.000 title claims description 14
- 238000003786 synthesis reaction Methods 0.000 title claims description 14
- 230000002194 synthesizing Effects 0.000 title claims description 14
- 238000003672 processing method Methods 0.000 title 1
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- CBENFWSGALASAD-UHFFFAOYSA-N ozone Chemical compound 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[O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 238000005020 pharmaceutical industry Methods 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 230000001105 regulatory Effects 0.000 description 1
- 230000000452 restraining Effects 0.000 description 1
- 238000009287 sand filtration Methods 0.000 description 1
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Abstract
The invention relates to a treatment method of wastewater produced by cephalo synthetic drug manufacturing, which mainly comprises three parts, namely, aerobe catalytic oxidation, anoxia hydrolytic acidification and a membrane biological reactor; firstly, organic matters having better biodegradability in the wastewater are removed in a biological contact oxidation pond, then biological hydrolytic acidification is carried out in an anoxic pond, and then the wastewater flows into the membrane biological reactor to carry out final aerobic Bioremediation; the wastewater after the treatment passes through an ultrafiltration membrane in the membrane biological reactor and is pumped out by a pump and then discharged to an effluent pipe after reaching standards or recycled to the production technology; the membrane biological reactor consists of an aeration zone and a membrane filtering zone, wherein, the aeration zone carries out aeration by adopting a disc-shaped millipore aeration head, the ultrafiltration membrane is positioned in the membrane filtering zone, the organic matters in the wastewater after being treated with aerobe contact oxidation and anoxia hydrolytic acidification are basically biodegraded, the wastewater is pumped out through the ultrafiltration membrane, and microbes in the reactor are blocked in the reactor. The method has the advantages of simple technique, good effect of treating wastewater, small occupation area, and low treatment cost, and is especially suitable for the wastewater produced by the cephalo synthetic drug manufacturing.
Description
Technical field
What the present invention relates to is a kind of treatment process of wastewater from cephalosporin synthesis pharmaceutical production, belongs to water-treatment technology field.
Background technology
Wastewater from cephalosporin synthesis pharmaceutical production belongs to the high density waste water difficult for biological degradation because composition complexity, organic concentration height, biodegradability are poor, does not still have the rational treatment technology of mature and reliable, investment and running cost at present both at home and abroad.It is external that what generally adopt is to concentrate burning, chemical oxidation and this waste water of wet oxidation technical finesse, concentrate burn and wet oxidation technical finesse effect fine, do not produce secondary pollution substantially, still invest hugely, domestic enterprise is unable substantially to be born.Therefore, still there is not engineering to use at home; Though chemical oxidization method is invested little, running cost is very high, and more than the hundreds of easily units of the processing costs of waste water per ton, and treatment effect is unsatisfactory, generally all as pre-treatment or post-processing technology.Domestic enterprise generally adopts chemical oxidation, flocculation sediment, anaerobic biological treatment and conventional aerobe to handle the bonded Technology, adopt this art breading wastewater from cephalosporin synthesis pharmaceutical production, have technical process length, long, the very high defective of running cost of hydraulic detention time, the waste water of this art breading of process can not long-term stability reach wastewater discharge standard mostly.Therefore, pharmacy waste water is known as the most unmanageable waste water in the wastewater treatment industry, also is the great restraining factors of the domestic and international pharmacy corporation development of influence.
In recent years, membrane bioreactor is obtaining attention as the combination of high performance membrane isolation technique and traditional activated sludge process aspect the pharmaceutical industry wastewater treatment.For hardly degraded organic substance, because the microorganism in the membrane bioreactor can not run off, sludge concentration is high especially, has guaranteed that the kind of microorganism in Russia's reactor is abundant, helps the bacterium of special treatment effect of enrichment those have to(for) hardly degraded organic substance.Combination process based on the Membrane Bioreactor for Wastewater Treatment pharmacy waste water is also further developed, the face and the method that combine as coagulating sedimentation+sand filtration+membrane bioreactor+activated carbon+ozone process, acidication+membrane bioreactor, the separate type membrane bioreactor that upflowing catalytic oxidation post and catalytic oxidation groove are formed in the film system etc.Though it is not above-mentioned method of wastewater treatment has certain treatment effect to general pharmacy waste water, good for the treatment effect of wastewater from cephalosporin synthesis pharmaceutical production.
Summary of the invention
The objective of the invention is to overcome the deficiency of above-mentioned existence, and provide a kind of organism major part in the waste water is removed, and effluent quality is better than state three grade emissioning standard, and can directly discharge, and also can be used for the treatment process of the wastewater from cephalosporin synthesis pharmaceutical production of production technique.
The objective of the invention is to finish by following technical solution, it is mainly by aerobic contact oxidation, and anaerobic hydrolysis acidifying and Membrane Bioreactor for Wastewater Treatment three parts constitute; The waste water that produces in the described cephalosporin synthesis pharmaceutical production method is removed that part of organism of good biodegradability in the waste water earlier by biological contact oxidation pond, in anoxic pond, carry out the biological hydrolysis acidifying then, improve the biodegradability of waste water, and then carry out final aerobe in the inflow membrane bioreactor and handle, waste water after the processing is through the ultra-filtration membrane in the membrane bioreactor, pump out by going out water pump, qualified discharge is to outer discharge pipe or be back to use in the production technique; The hydraulic detention time of membrane bioreactor is 20 hours in the described treatment process, and volumetric loading is 4.5kgCOD/m
3.d, sludge concentration is 6-10g/l, and membrane flux is 10L/m
2.h, resistance of membrane filtration is less than 30kPa; Factory effluent COD 4000-7000mg/l, BOD
550-300mg/l, water outlet COD≤100mg/l, BOD
5≤ 10mg/l, SS is lower than detection limit, turbidity≤0.4NTU.
Described membrane bioreactor is a core processing unit of the present invention, it is made 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, through the waste water after aerobic contact oxidation, the anaerobic hydrolysis acidification, organism wherein is substantially by biological degradation, and waste water is extracted out through in the ultra-filtration membrane, and the microorganism in the reactor is blocked in the reactor.
The present invention is directed to the characteristics of production of raw medicine concentration of organic wastewater height, biodegradability difference, adopt aerobic contact oxidation, anaerobic hydrolysis acidifying and membrane Bio-reactor Technology that this kind waste water is carried out a biological disposal upon, because membrane bioreactor has adopted ultra-filtration membrane, it has following advantage: because the microorganism of membrane bioreactor can not run off, sludge concentration is high especially, and does not need to establish second pond, therefore, it is very high that it handles load, and floor space is little; Effluent quality is good, does not particularly contain suspended substance, might be back to use in the production; Microorganism can not run off in the membrane bioreactor, guaranteed that also the kind of microorganism is extremely abundant in the reactor, some be difficult for growth, have the bacterium of special treatment effect also can in reactor, reach very high amount for hardly degraded organic substance, therefore, membrane bioreactor has special processing power for organic wastewater with difficult degradation thereby; Sludge age is long, and sludge yield is little, has reduced the trouble of sludge treatment.
The present invention is with respect to prior art, and it is simple to have technology, good waste water treatment effect, and floor space is little, and processing cost is low, is particularly useful for the characteristics such as waste water that produce in the cephalosporin synthesis pharmaceutical production.
Description of drawings
Fig. 1 is that the employing membrane bioreactor is the bulk drug sewage treatment technology process figure of core processing unit.
Embodiment
The present invention is further illustrated below in conjunction with Fig. 1 and example: the present invention is mainly by aerobic contact oxidation, anaerobic hydrolysis acidifying and membrane bioreactor three parts constitute, the waste water that produces during cephalosporin synthesis pharmaceutical is produced is removed that part of organism of good biodegradability in the waste water earlier by biological contact oxidation pond, in anoxic pond, carry out the biological hydrolysis acidifying then, improve the biodegradability of waste water, and then carry out final aerobe in the inflow membrane bioreactor and handle, waste water after the processing is through the ultra-filtration membrane in the membrane bioreactor, pump out by going out water pump, qualified discharge is to outer discharge pipe or be back to use in the production technique.In above-mentioned processing bulk drug waster water process, the hydraulic detention time of membrane bioreactor is 20 hours, and volumetric loading is 4.5kgCOD/m
3.d, sludge concentration is 6-10g/l, and membrane flux is 10L/m
2.h, resistance of membrane filtration is less than 30kPa; Factory effluent COD 4000-7000mg/l, BOD
550-300mg/l, water outlet COD≤100mg/l, BOD
5≤ 10mg/l, SS is lower than detection limit, turbidity≤0.4NTU.
Shown in Figure 1, factory effluent flows into the pump well 1 of Waste Water Treatment through piping, sends into equalizing tank 2 by lift pump, balanced water quality and quantity in equalizing tank, and to be adjusted to pH value be 6-8; Waste water in the equalizing tank 2 is sent into contact-oxidation pool 3 by lift pump, remove that part of organism of good biodegradability in the waste water, waste water is removed suspended substance through second pond 4 again and is entered anoxic pond 5 then, hardly degraded organic substance in anoxic pond 5 waste water is through the acidication effect of anaerobic bacterium and facultative bacteria, be decomposed into the small organic molecule of easy degraded, and then carry out final aerobe in the inflow membrane bioreactor 6 and handle, treated waste water is through the ultrafiltration membrance filter in the membrane bioreactor 6, pump out by going out water pump, be discharged into outer discharge pipe or be back to use in the production technique.
Membrane bioreactor 6 of the present invention is core processing units of the present invention, it is made 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 7 is placed on the membrane filtration district, through the waste water after aerobic contact oxidation, the anaerobic hydrolysis acidification, organism wherein is substantially by biological degradation, waste water is extracted out through in the ultra-filtration membrane, microorganism in the reactor is blocked in the reactor, guaranteed like this to form very high microorganism concn and kind in the membrane bioreactor, improved the biological treatment ability.
Embodiment 1
Wastewater from cephalosporin synthesis pharmaceutical production 300m
3/ d comes water COD 4000-7000mg/l, BOD
550-300mg/l through the balanced water quality and quantity of equalizing tank and after regulating the pH value, carries out aerobe at contact-oxidation pool and handles, and removes the partial organic substances of good biodegradability.Contact-oxidation pool hydraulic detention time 19 hours, volumetric loading 3.1kgCOD/m
3.d, water outlet COD2000-3000mg/l, BOD
520-230mg/l; The contact-oxidation pool water outlet enters anoxic pond and membrane bioreactor, and the residence time of waste water in membrane bioreactor is 20 hours, and volumetric loading is 4.5kgCOD/m
3.d, sludge concentration is 6-10g/l, and membrane flux is 10L/m
2.h, resistance of membrane filtration is less than 30kPa; Water outlet COD≤100mg/l, BOD5≤10mg/l, SS is lower than detection limit, turbidity≤0.4NTU.
Ultra-filtration membrane in the membrane bioreactor adopts the PVDF material, and membrane flux is 10L/m
2.h, membrane filtration initial resistance 6kPa moves final resistance less than 30kPa; Do not need to carry out back flushing, carried out on-line cleaning one time in per 60 days, every 12-18 carried out primary chemical cleaning in individual month.
Claims (2)
1. the treatment process of a wastewater from cephalosporin synthesis pharmaceutical production, it is mainly by aerobic contact oxidation, and anaerobic hydrolysis acidifying and Membrane Bioreactor for Wastewater Treatment three parts constitute; The waste water that produces in the described cephalosporin synthesis pharmaceutical production method is removed that part of organism of good biodegradability in the waste water earlier by biological contact oxidation pond, in anoxic pond, carry out the biological hydrolysis acidifying then, improve the biodegradability of waste water, and then carry out final aerobe in the inflow membrane bioreactor and handle, waste water after the processing is through the ultra-filtration membrane in the membrane bioreactor, pump out by going out water pump, qualified discharge is to outer discharge pipe or be back to use in the production technique; The hydraulic detention time of membrane bioreactor is 20 hours in the described treatment process, and volumetric loading is 4.5kgCOD/m
3.d, sludge concentration is 6-10g/l, and membrane flux is 10L/m
2.h, resistance of membrane filtration is less than 30kPa; Factory effluent COD 4000-7000mg/l, BOD
550-300mg/l, water outlet COD≤100mg/l, BOD
5≤ 10mg/l, SS is lower than detection limit, turbidity≤0.4NTU.
2. the treatment process of wastewater from cephalosporin synthesis pharmaceutical production according to claim 1, it is characterized in that described membrane bioreactor is the core processing unit of described method, it is made 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, through the waste water after aerobic contact oxidation, the anaerobic hydrolysis acidification, organism wherein is substantially by biological degradation, waste water is extracted out through in the ultra-filtration membrane, and the microorganism in the reactor is blocked in the reactor.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2011147868A (en) * | 2010-01-20 | 2011-08-04 | Hitachi Plant Technologies Ltd | Waste water treatment system and method |
| CN102503041A (en) * | 2011-11-16 | 2012-06-20 | 成都盛尔嘉科技有限公司 | Method for treating sewage by using flat plate membrane bioreactor |
| CN103449657A (en) * | 2012-05-30 | 2013-12-18 | 天津市北方园林生态科学技术研究所 | Purifying process of domestic sewage in residential centralized area |
| CN102964022B (en) * | 2012-07-23 | 2014-12-24 | 北京水泥厂有限责任公司 | Treatment method of sludge drying generated sewage |
| CN102964048B (en) * | 2012-07-23 | 2015-05-27 | 北京水泥厂有限责任公司 | Method for sludge drying and sewage treatment |
| CN102826722B (en) * | 2012-09-20 | 2014-12-17 | 江苏艾特克环境工程有限公司 | Treatment method for wastewater generated by producing cephalosporin medicines |
| CN104628223A (en) * | 2014-12-22 | 2015-05-20 | 浙江东发环保工程有限公司 | Strengthened biological processing method of wastewater generated in natural gas production from coal |
| CN104628199B (en) * | 2015-01-15 | 2017-01-11 | 珠海保税区丽珠合成制药有限公司 | Treatment method of cephalosporin synthesizing pharmaceutical production wastewater |
| 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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| CN101434437A (en) | 2009-05-20 |
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