CN100417604C - Fully biological treatment of wastewater of nitrobenzol or aniline or their mixture - Google Patents
Fully biological treatment of wastewater of nitrobenzol or aniline or their mixture Download PDFInfo
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- CN100417604C CN100417604C CNB2004100658402A CN200410065840A CN100417604C CN 100417604 C CN100417604 C CN 100417604C CN B2004100658402 A CNB2004100658402 A CN B2004100658402A CN 200410065840 A CN200410065840 A CN 200410065840A CN 100417604 C CN100417604 C CN 100417604C
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Abstract
The present invention relates to a fully biological treatment method of nitrobenzene wastewater or aniline wastewater or mixed wastewater generated in the production, and the waste water is treated by fully depending on a mixed bacteria agent composed of various microorganisms from the nature. The present invention mainly uses taiwan H. S. B high resolution power bacteria, and the nitrobenzene waste water which comprises high nitrobenzene (not bigger than 100 mg/g), aniline (not bigger than 500 mg/l) and COD (not bigger than 1500 mg/l), or aniline wastewater or the mixed wastewater is treated by a fully biological flow to reach a standard to be discharged. The present invention can be used for treating the same wastewater or organic wastewater with similar property, and an application technology and a relevant matching device have durability in China.
Description
Technical field:
The invention belongs to the chemical engineering environmental technology field, be specifically related to the full biochemical processing method of the composite waste of generation in nitrobenzene waste water or aniline waste water or its production.
Background technology:
Oil of mirbane and Aniline Production are discharged a fairly large number of waste water, though through the stripping recycling, its content is still very high, and oil of mirbane and aniline chemical property are stable, and be big to bio-toxicity, the strict control of national environmental protection its discharging quantity and concentration.Nitrobenzene waste water particularly is because conventional bacterial classification is difficult to produce rapidly the needed enzyme of degrading nitrobenzene, so its BOD
5Almost nil, the biodegradability extreme difference is a great problem of international and domestic Industrial Wastewater Treatment.The method of present domestic treatment of Nitrobenzene waste water adopts physico-chemical process more, as electrolytic process, resin or active carbon adsorption, and catalyst oxidation method, multistage complexing abstraction etc.The method that adopts materialization-biochemistry is also arranged, and it is (general＜as 50ppm), and then to use Wastewater Treated by Activated Sludge Process promptly with physico-chemical process oil of mirbane in the waste water to be reduced to low concentration earlier.Above treatment process ubiquity long flow path, the running cost height discharges drawback not up to standard.
H.S.B (High solution Bacteria high definition bacterium) is No. 52123 disclosed a kind of bacterial classifications of Taiwan patent, is a kind of complex micro organism fungicide of handling sanitary sewages such as pig farm, oil pressing factory in Taiwan.Do not see both at home and abroad the report that adopts H.S.B microbial inoculum and complete biochemical flow process to be successfully applied to handle aniline waste water or nitrobenzene waste water or oil of mirbane, aniline composite waste as yet.
Summary of the invention:
The purpose of this invention is to provide a kind of microbial strains that utilizes, the method for complete biochemical flow high efficiency low-cost processes nitrobenzene waste water, aniline waste water and composite waste thereof.
Technical essential of the present invention is to be used to the natural blended waste water that the full biochemical process of the composite fungus agent formed from the multiple microorganism of the Nature comes treatment of Nitrobenzene waste water or aniline waste water or its production equipment to discharge, and the degraded of objectionable impurities relies on microorganism to carry out fully in the waste water.
Treatment scheme of the present invention is made up of the structures of holding concurrently oxygen reactor and aerobic reactor and have a subsidiary function, and the treatment system temperature is controlled at 15 ℃-40 ℃; PH value is 7.0 ± 1.0; Double oxygen reactor dissolved oxygen≤0.5mg/l, aerobic reactor dissolved oxygen 2-4mg/l; Double oxygen retention time of sewage 30-40h, aerobic retention time of sewage 20-30h; Contain so higher oil of mirbane (≤100mg/l) and aniline (≤500mg/l), the nitrobenzene waste water of COD≤1500mg/l or aniline waste water or its composite waste are after above-mentioned complete biochemical flow processing, but qualified discharge.
The full biochemical processing method of the present invention, the bacterial classification of selection are the H.S.B microbiobacterial agent in Taiwan, and this is a kind of composite fungus agent of forming from the multiple microorganism of the Nature, rather than the genetic engineering bacterium of any kind of.
Technical conceive of the present invention is that the degraded of objectionable impurities in the waste water need not physicochemical method but rely on aerobic-anaerobic microbe to finish fully.Breathing pattern according to microorganism, the sequence flow (A-O-O technology) that treatment process is divided into anaerobic-aerobic, like this microorganism is carried out the clear and definite division of labor, make each quasi-microorganism utilize in different environment respectively that self characteristics is ingested, degradation compound, until innoxious fully.
Complete biochemical flow path device of the present invention often mainly is made of wastewater collection pond, even matter pond, oxygen compatibility pool, Buffer Pool, Aerobic Pond etc.Double oxygen reactor generally is designed to the upflow sludge blanket anaerobic reactor, i.e. UASB formula oxygen reactor or the many lattice square groove diving stirring-type oxygen reactor of holding concurrently continuously of holding concurrently; Aerobic reactor generally is designed to the aerobic reactor of two-stage tandem micro-pore aeration, and sequence bioreactor, i.e. SBR mode are adopted in its operation.
Biochemical basis of the present invention is: waste water in collecting tank, even matter pond through temperature control, homogenizing, adjusting PH, add step such as nutrition agent, enter oxygen compatibility pool after making it meet the suitable life condition of microorganism.The oxygen bacterium of holding concurrently will contain aromatic hydrocarbons structure pollution substance by hydrolysis and acidifying and change straight chain or short chain solubility small organic molecule into.Waste water enters Buffer Pool and two placed in-line Aerobic Ponds then.Aerobic Pond carries out aeration, sedimentation, emissions operation by the SBR sequential, and aerobic bacteria is further resolved into CO with organic substance in the waste water
2, H
2Harmless object materials such as O make discharged wastewater met the national standard.
The inventive method can be distinguished outside treatment of Nitrobenzene waste water, the aniline waste water, but the composite waste that produces of treatment of Nitrobenzene and Aniline Production device does not also need to carry dense or pre-treatment such as dilution.Generally speaking, nitrobenzene waste water can be biochemical poor, and the aniline waste water biodegradability is good, after two kinds of waste water mixing, the biodegradability of waste water is improved, and not only can save biochemical treatment facility expense, also can simplify the waste water delivery technology, reduce facility investments such as transferpump, pipeline, pipe fitting.
Full biochemical processing method of the present invention, the flco that the glue plumage of holding concurrently oxygen, aerobic reaction part mud and relying on microorganism fully separating of water forms, and need not add any flocculating settling agent; Treatment scheme has complete mud to reflux and Digestive tract, can not produce the secondary pollution that effluxes mud and cause.
In the method for the present invention, bacterial classification, carrier is disposable feeds intake, and need not to replenish; At ordinary times easy and simple to handle, what need is artificial few, so running cost is cheap.
Method of the present invention can be used to handle organic waste water similar or that characteristic is similar, and its utilisation technology and relevant auxiliary facility have persistence at home.
Embodiment:
The invention will be further described below in conjunction with the composite waste Processing Example.
Composite waste from 80kt/a nitrobenzene plant and 55kt/a aniline device, flow with 12.5t/h enters collecting tank, nitrobenzene≤100mg/l, aniline content≤500pm, CODcr≤1500mg/l in the former water, PH=10-12, colourity≤3000 (doubly).Waste water enters even matter pond by collecting tank and regulates water quality and quantity, adds acid simultaneously pH value is adjusted to 6.0-8.0, and add nutrition agent.Be no lack of carbon (C), nitrogen (N) in the composite waste, get final product so only need replenish the necessary carbamate additives for low phosphorus of bacterium (P).Even matter pond waste water temperature control enters three placed in-line oxygen compatibility pools for 15～35 ℃ continuously, and the oxygen bacterium of holding concurrently to waste water open loop decolouring, produces organic acid at this, so oxygen compatibility pool water outlet COD also descends waste water COD≤1000 at this moment to some extent.The oxygen compatibility pool water outlet enters Buffer Pool after the liquid-solid separation of settling tank, after Buffer Pool water enters two placed in-line Aerobic Ponds, adopt the SBR mode, advance water, aeration, sedimentation, the cyclical operation of releasing successively, discharged wastewater met the national standard, at this moment, nitrobenzene≤2g/l in the waste water, aniline content≤1mg/l, CODcr≤100mg/l, PH=6 ∽ 9, colourity≤50 (doubly).
Oxygen compatibility pool, settling tank, Buffer Pool are flow by gravity, and settling tank lower floor mud continuous backflow is to oxygen compatibility pool.The excess sludge of Aerobic Pond also by sludge pumping to oxygen compatibility pool, oxygen compatibility pool is the double as sludge digestion tank again.The total system sludge quantity keeps balance, and mud was not outwards discharged in operation more than 2 years.
The mode that even matter pond adopts stirring arm to combine with perforated pipe aerating regulation is carried out the waste water quality homogenizing.Oxygen compatibility pool adopts submersible agitator to stir, and Aerobic Pond then adopts blast aeration, and aeration mode is that the micro-pore aeration dish is in conjunction with perforated pipe, to guarantee each unit mixing fully, mud formation suspended state.
Like this, the inventive method adopts complete biochemical flow process that oil of mirbane, aniline or its composite waste are handled, (GB8978-1996) up to standard discharging, its COD clearance 〉=95%, satisfactory for result, simultaneously because easy and simple to handle, working cost is cheap, composite waste processing cost per ton is below 2 yuan.
Claims (8)
1. the full biochemical processing method of a nitrobenzene waste water or aniline waste water or its composite waste, the full biochemical process that it is characterized in that being used to the composite fungus agent formed from the multiple microorganism of the Nature is handled above-mentioned independent or blended factory effluent, the degraded of objectionable impurities relies on microorganism to carry out fully in the waste water, and composite fungus agent adopts the H.S.B microbiobacterial agent in Taiwan; The treatment scheme device is made up of the structures of holding concurrently oxygen reactor and aerobic reactor and have a subsidiary function, and the treatment system temperature is controlled at 15 ℃-40 ℃; PH value is 7.0 ± 1.0; Double oxygen reactor dissolved oxygen≤0.5mg/l, aerobic reactor dissolved oxygen 2-4mg/l; Double oxygen retention time of sewage 30-40h, aerobic retention time of sewage 20-30h; Nitrobenzene-containing≤100mg/l and aniline≤500mg/l like this, the composite waste of CODcr≤1500mg/l is after above-mentioned full biochemical method is handled, but qualified discharge.
2. the full biochemical processing method of nitrobenzene waste water or aniline waste water or its composite waste according to claim 1 is characterized in that the treatment scheme device is made of wastewater collection pond, even matter pond, oxygen compatibility pool, Buffer Pool and Aerobic Pond.
3. full biochemical processing method of nitrobenzene waste water or aniline waste water or its composite waste according to claim 1, the oxygen reactor that it is characterized in that holding concurrently is the upflow sludge blanket anaerobic reactor, i.e. the UASB formula oxygen reactor of holding concurrently.
4. full biochemical processing method of nitrobenzene waste water or aniline waste water or its composite waste according to claim 1, the oxygen reactor that it is characterized in that holding concurrently are many lattice square groove diving stirring-type oxygen reactors of holding concurrently continuously.
5. full biochemical processing method of nitrobenzene waste water or aniline waste water or its composite waste according to claim 1, it is characterized in that aerobic reactor is the aerobic reactor of two-stage tandem micro-pore aeration, sequence bioreactor, i.e. SBR mode are adopted in its operation.
6. the full biochemical processing method of nitrobenzene waste water or aniline waste water or its composite waste according to claim 1 is characterized in that the composite waste that oil of mirbane and Aniline Production device produce, and does not need to carry dense or the dilution pre-treatment, can full biochemical treatment.
7. full biochemical processing method of nitrobenzene waste water or aniline waste water or its composite waste according to claim 1, the flco that the glue plumage that it is characterized in that holding concurrently oxygen, aerobic reactor mud and rely on microorganism fully separating of water forms, and need not add any flocculating settling agent.
8. the full biochemical processing method of nitrobenzene waste water or aniline waste water or its composite waste according to claim 1 is characterized in that treatment scheme has complete mud to reflux and Digestive tract, can not produce the secondary pollution that effluxes mud and cause.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100658402A CN100417604C (en) | 2004-12-22 | 2004-12-22 | Fully biological treatment of wastewater of nitrobenzol or aniline or their mixture |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100658402A CN100417604C (en) | 2004-12-22 | 2004-12-22 | Fully biological treatment of wastewater of nitrobenzol or aniline or their mixture |
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| CN1644529A CN1644529A (en) | 2005-07-27 |
| CN100417604C true CN100417604C (en) | 2008-09-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101781024B (en) * | 2009-12-01 | 2012-02-29 | 吉林大学 | Composite microbial inoculum for quickly degrading nitrobenzene and phenylamine, and preparation method and application thereof |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100341797C (en) * | 2005-09-22 | 2007-10-10 | 南京大学 | Amino benzene analog waste water biological treatment method |
| CN100368322C (en) * | 2006-02-27 | 2008-02-13 | 南京大学 | Double function resin process for treating toluidine-containing effluent |
| CN100447101C (en) * | 2006-03-17 | 2008-12-31 | 江阴市倪家巷化工有限公司 | Treatment technology of mesitylene amine |
| CN100391874C (en) * | 2006-03-17 | 2008-06-04 | 江阴市倪家巷化工有限公司 | Treatment technology of p-aminotoluene waste water |
| CN104478093B (en) * | 2007-04-12 | 2016-06-01 | 诺维信生物股份有限公司 | Wastewater treatment |
| CN102730840A (en) * | 2012-06-14 | 2012-10-17 | 辽宁大学 | Method for degrading nitrobenzene in waste water |
| CN105293713A (en) * | 2014-05-29 | 2016-02-03 | 上海安赐机械设备有限公司 | Device and method for carrying out enhanced biological treatment on nitrobenzene wastewater |
| CN106698860B (en) * | 2017-03-06 | 2021-02-05 | 山东省环境保护科学研究设计院有限公司 | Nitrobenzene wastewater treatment process |
| CN114702192B (en) * | 2022-01-24 | 2023-10-24 | 艾特克控股集团股份有限公司 | Benzene ring-containing substance waste liquid treatment device and treatment method |
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| JPS61220795A (en) * | 1985-03-27 | 1986-10-01 | Bunji Kurosaki | Treatment of high-concentration organic waste water |
| CN1132725A (en) * | 1995-10-20 | 1996-10-09 | 清华大学 | Waste water processing method for prodn of nitrobenzene and nitro-chlorobenzene |
| CN1544351A (en) * | 2003-11-20 | 2004-11-10 | 广东省微生物研究所 | Biological treatment method of waste water from printing and dying |
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2004
- 2004-12-22 CN CNB2004100658402A patent/CN100417604C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61220795A (en) * | 1985-03-27 | 1986-10-01 | Bunji Kurosaki | Treatment of high-concentration organic waste water |
| CN1132725A (en) * | 1995-10-20 | 1996-10-09 | 清华大学 | Waste water processing method for prodn of nitrobenzene and nitro-chlorobenzene |
| CN1544351A (en) * | 2003-11-20 | 2004-11-10 | 广东省微生物研究所 | Biological treatment method of waste water from printing and dying |
Non-Patent Citations (2)
| Title |
|---|
| 含硝基苯类衍生物的废水处理. 姚方等.浙江工业大学学报，第31卷第6期. 2003 |
| 含硝基苯类衍生物的废水处理. 姚方等.浙江工业大学学报，第31卷第6期. 2003 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101781024B (en) * | 2009-12-01 | 2012-02-29 | 吉林大学 | Composite microbial inoculum for quickly degrading nitrobenzene and phenylamine, and preparation method and application thereof |
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| CN1644529A (en) | 2005-07-27 |
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