CN102372358A - Method for processing anti-aging agent 4-dibenzyloxybenzene waste water - Google Patents
Method for processing anti-aging agent 4-dibenzyloxybenzene waste water Download PDFInfo
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- CN102372358A CN102372358A CN2011103166166A CN201110316616A CN102372358A CN 102372358 A CN102372358 A CN 102372358A CN 2011103166166 A CN2011103166166 A CN 2011103166166A CN 201110316616 A CN201110316616 A CN 201110316616A CN 102372358 A CN102372358 A CN 102372358A
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Abstract
The invention belongs to the fine chemical field, and relates to a method for processing anti-aging agent 4-dibenzyloxybenzene waste water. The ozone oxidation treatment way is adopted for processing the waste water, under the normal temperature, a stationary bed form is adopted, manganese-based catalyst adopting active carbon as a carrier is adopted, the quantity of ozone-air mixed gas is 10BV/h to 40 BV/h, the pH value of the waste water is adjusted to be acid, the water fed chemical oxygen demand (COD) is controlled below 5000mg/L, water is fed continuously according to a flow rate of 50ml/h to 400ml/h, removal rate of COD after being processed can reach more than 85 percent, wherein the removal rate of methylisobutylketone which is difficult to biochemical and is a characteristic pollutant can reach more than 85 percent, and the removal rate of methyl isobutyl carbinol can reach more than 95 percent. Compared with the prior art, the relative test stability is high, the relative decolor effect is good, and the removal rate of the COD is relatively high; and the relative test process is simple, the cost is low, and the method is suitable for the industrialized operation.
Description
Technical field
The invention belongs to field of fine chemical and handle method for waste water, relate to and handle difficult biochemical organic waste water, particularly adopt the ozone oxidation method to handle anti-aging agent 6PPD waste water.
Background technology
In recent years, people are to the research of ozone with use increasing.Ozonation technology has many good qualities: the ozone oxidation ability is strong, but instantaneous reaction in the lower concentration, and oxidation capacity is 2 times of chlorine; Do not produce mud and stink, non-secondary pollution; Oxidizing reaction only takes place in ozone, is prone to use with other technical tie-up, and wastewater treatment equipment is control easily also.The ozone oxidation mechanism of action generally believes it is ozone disassociation and generate hydroxyl radical free radical, and it is the most active oxygenant in the known oxygenant in water, is easy to various types of oxidation operations.
Ozone is as a kind of strong oxidizer, with organism in the waste water oxidizing reaction only takes place, and can not produce harmful organic composition and secondary pollution, aspect water treatment, receives in recent years widely and paying close attention to.At present, the development trend of ozonation technology, just progressively from single use ozonize to gac, ydrogen peroxide 50 (H
2O
2), the direction of photochemical catalysis, metal catalytic, compounding technology such as ultrasound-enhanced develops.
The heterogeneous catalytic oxidation ozonation technology has overcome the insufficient place of independent ozone oxidation, can decompose the organic pollutant of independent ozone oxidation difficult degradation in the waste water.Much extensively carrying out to the ozone Oxidation Treatment Study on wastewater at present, some researchs wherein comprise: TiO
2Photocatalysis and ozone oxidation Witcizer 300; O
3/ H
2O
2Combined action pre-treating difficultly-degradable pharmacy waste water under top condition, reaches 65% to the waste water COD clearance, if carry out second-stage treatment with SBR, can make the final outflow water index reach discharging standards; O
3/ UV (ultraviolet ray)-biochemistry combination treatment of dyeing and printing, water outlet can reach the first grade discharging requirement of textile dyeing and finishing industry relevant emission standards.
But all there is technology cost cost problem of higher in aforesaid method, for anti-aging agent 6PPD [N-(1, the 3-dimethylbutyl)-N
＇-diphenyl-para-phenylene diamine] waste water, it is too complicated that above-mentioned technology industrializing implementation seems.
Summary of the invention
The object of the invention is to overcome above technical deficiency, and a kind of processing anti-aging agent 6PPD is provided [N-(1, the 3-dimethylbutyl)-N
＇-diphenyl-para-phenylene diamine] method of waste water.This method catalytic performance height, life cycle length, the dosage that reduces ozone, saving cost and easy handling are the efficiently catalyzing and oxidizing factures that is fit to large-scale industrialization production.
The present invention realizes like this: handle the method for anti-aging agent 6PPD waste water, adopt ozone Oxidation Treatment waste water, it is characterized in that: at normal temperatures; With the form of fixed bed, adopting with the gac is the manganese series catalyzer of carrier, feeds the ozone-air gas mixture scale of construction at 10-40BV/h; Waste water ph is adjusted to acidity; Water inlet COD is controlled at below the 5000mg/L, and 50ml/h-400ml/h is intake continuously by flow, and the COD clearance arrives more than 85% after treatment; Wherein difficult biochemical characteristic pollutent MIBK clearance reaches more than 85%, and the clearance of methyl isobutyl alcohol reaches more than 95%.
Usually, the preferred scheme of the inventive method is: select the form of fixed bed, be difficult for causing the loss of manganese content in the catalyzer, and make test operation be easy to control; The employing gac is a support of the catalyst, and its cost is lower, and catalytic activity is higher, and good stability adopts loaded metal manganese further to improve the catalytic activity of gac, thereby improved the clearance of COD; The feeding amount of control ozone and air is 20-25BV/h; Waste water ph is adjusted to 4-5, under acidic conditions, helps the absorption of manganese series catalyzer; Water inlet COD is controlled at 4000mg/L-5000mg/L, flooding velocity 200ml/h.
After adopting the inventive method to handle, COD is best, and clearance reaches 90.28%, and wherein difficult biochemical characteristic pollutent MIBK clearance reaches 87.89%, and the clearance of methyl isobutyl alcohol reaches 97.28%.
It is a kind of to containing organic a kind of efficiently catalyzing and oxidizing method that MIBK and this type of methyl isobutyl alcohol can not biochemistry in the 6PPD waste water that the present invention provides, and improves the biodegradability ability of oxidation water outlet greatly.For waste water hard to manage provides a preferable treatment process.
Compared with prior art, the present invention has following advantage:
1) test stability relatively is high.
2) relative good decolorizing effect.The COD clearance is than higher.
3) process of the test is simple relatively, and cost is lower, is fit to the industriallization operation.
Embodiment
Below in conjunction with embodiment the present invention is described in detail.
Embodiment adopts following method: get 6PPD waste water; COD concentration is formulated into desired concn; Get into the oxide pillars top by the volume pump dominant discharge; The ozone of ozonizer generation simultaneously and Air mixing gas get into through the sparger of oxide pillars bottom, catalytic oxidation under the effect of oxide pillars inner catalyst, and water outlet is through U type pipe overflow entering receiving flask.Following embodiment is a fixed bed device, selects the carrier of bar-shaped gac as manganese series catalyzer.
Embodiment 1
Get 6PPD waste water; Record its COD 44740mg/L; Dilute 10 times of after vulcanization acid and regulate its pH value to 4-5; The 415.5g tap density of in oxide pillars, packing into is the manganese series catalyzer of 0.69g/ml, and the sparger bottom oxide pillars feeds ozone and the Air mixing gas that ozonizer produces, and it is 20-25BV/h that control feeds gas vol.The 6PPD waste water that feeding prepares is 200ml/h by its flow of volume pump control, gets the moment water sample analysis after 8 hours, and recording its COD is 496.17mg/L, and clearance reaches 88.07%.Wherein characteristic pollutent MIBK clearance reaches 83.94%; The methyl isobutyl alcohol clearance reaches 97.04%.
Embodiment 2
Get 6PPD waste water; Record its COD 44740mg/L, dilute 10 times of after vulcanization acid and regulate its pH value to 4-5, the 415.5g tap density of in oxide pillars, packing into is the manganese series catalyzer of 0.69g/ml; From a sparger bubbling air of oxide pillars bottom, it is 20-25BV/h that control feeds gas vol.The 6PPD waste water that feeding prepares is 200ml/h by its flow of volume pump control, gets the moment water sample analysis after 8 hours, and recording its COD is 1429.44mg/L, and clearance is 68.05%.Wherein characteristic pollutent MIBK clearance reaches 83.50%; The methyl isobutyl alcohol clearance reaches 97.28%.
Embodiment 3
Get 6PPD waste water; Record its COD 44740mg/L; Dilute 10 times of after vulcanization acid and regulate its pH value to 4-5; The 415.5g gac of in oxide pillars, packing into only feeds ozone and the Air mixing gas that ozonizer produces from the sparger of oxide pillars bottom, and control feeding gas vol is 20-25BV/h.The 6PPD waste water that feeding prepares is 200ml/h by its flow of volume pump control, gets the moment water sample analysis after 8 hours, and recording its COD is 816.05mg/L, and clearance is 81.76%.Wherein characteristic pollutent MIBK clearance reaches 83.72%; The methyl isobutyl alcohol clearance reaches 96.94%.
Embodiment 4
Get 6PPD waste water, record its COD 44740mg/L, dilute 10 times of after vulcanization acid and regulate its pH value to 4-5, this moment, the waste water pH value was about 8.The 415.5g tap density of in oxide pillars, packing into is the manganese series catalyzer of 0.69g/ml, and the sparger bottom oxide pillars feeds ozone and the Air mixing gas that ozonizer produces, and it is 20-25BV/h that control feeds gas vol.The 6PPD waste water that feeding prepares is 200ml/h by its flow of volume pump control, gets the moment water sample analysis after 16 hours, and recording its COD is 680.04mg/L, and clearance is 84.80%.Wherein characteristic pollutent MIBK clearance reaches 82.62%; The methyl isobutyl alcohol clearance reaches 97.24%.
Can find out that from above embodiment result the ozone oxidation method that the present invention adopted shows the oxidation stable effluent quality through continuous oxidation test; Colorless and odorless; The COD clearance is more than 85%, and the characteristic pollutants removal rate reaches more than 85%, and percent of decolourization reaches more than 95%; And beds is stable, is fit to industriallization.
Claims (5)
1. a method of handling anti-aging agent 6PPD waste water adopts ozone Oxidation Treatment waste water, it is characterized in that: at normal temperatures; With the form of fixed bed, adopting with the gac is the manganese series catalyzer of carrier, feeds the ozone-air gas mixture scale of construction at 10-40BV/h; Waste water ph is adjusted to acidity; Water inlet COD is controlled at below the 5000mg/L, and 50ml/h-400ml/h is intake continuously by flow, and the COD clearance arrives more than 85% after treatment; Wherein difficult biochemical characteristic pollutent MIBK clearance reaches more than 85%, and the clearance of methyl isobutyl alcohol reaches more than 95%.
2. according to the said method of claim 1, it is characterized in that: ozone-air mixed gas feeding amount is 20-25BV/h.
3. according to the said method of claim 1, it is characterized in that waste water ph is adjusted to 4-5.
4. according to the said method of claim 1, it is characterized in that into water COD is controlled at 4000mg/L-5000mg/L, flooding velocity 200ml/h.
5. according to the said method of claim 1, it is characterized in that after treatment that the COD clearance reaches 90.28%, wherein difficult biochemical characteristic pollutent MIBK clearance reaches 87.89%, and the clearance of methyl isobutyl alcohol reaches 97.28%.
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| CN2011103166166A CN102372358A (en) | 2011-10-18 | 2011-10-18 | Method for processing anti-aging agent 4-dibenzyloxybenzene waste water |
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|---|---|---|---|
| CN2011103166166A CN102372358A (en) | 2011-10-18 | 2011-10-18 | Method for processing anti-aging agent 4-dibenzyloxybenzene waste water |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090107919A1 (en) * | 2007-10-31 | 2009-04-30 | Chevron U.S.A. Inc. | Apparatus and process for treating an aqueous solution containing chemical contaminants |
| CN101910055A (en) * | 2007-10-31 | 2010-12-08 | 莫利康普矿物有限责任公司 | Process and apparatus for treating a gas containing a contaminant |
| CN102049253A (en) * | 2009-10-28 | 2011-05-11 | 中国石油化工集团公司 | Preparation method of special catalyst for waste water treatment by ozone oxidation |
-
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- 2011-10-18 CN CN2011103166166A patent/CN102372358A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090107919A1 (en) * | 2007-10-31 | 2009-04-30 | Chevron U.S.A. Inc. | Apparatus and process for treating an aqueous solution containing chemical contaminants |
| CN101910055A (en) * | 2007-10-31 | 2010-12-08 | 莫利康普矿物有限责任公司 | Process and apparatus for treating a gas containing a contaminant |
| CN102049253A (en) * | 2009-10-28 | 2011-05-11 | 中国石油化工集团公司 | Preparation method of special catalyst for waste water treatment by ozone oxidation |
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Application publication date: 20120314 |
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