CN204434394U - A kind of high density is containing phenol treatment of Organic Wastewater equipment - Google Patents
A kind of high density is containing phenol treatment of Organic Wastewater equipment Download PDFInfo
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- CN204434394U CN204434394U CN201520013750.2U CN201520013750U CN204434394U CN 204434394 U CN204434394 U CN 204434394U CN 201520013750 U CN201520013750 U CN 201520013750U CN 204434394 U CN204434394 U CN 204434394U
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Abstract
The utility model discloses a kind of high density containing phenol treatment of Organic Wastewater equipment, the first aeration head (19) and pH probe (18) is provided with in regulating tank (11), regulating tank (11) is connected with extraction tank (12), the second aeration head (3) is provided with in extraction tank (12), air dissolved pump (25) and oil level probe (16), the bottom of extraction tank (12) connects catalyzed oxidation groove (13) by water pump, the 2nd pH probe (10) and the 3rd aeration head (20) is provided with in catalyzed oxidation groove (13), second overflow port (5) of catalyzed oxidation groove (13) upper end connects the upper end of settling bath (14), the centre of settling bath (14) is provided with swash plate (6), the bottom of settling bath (14) is provided with mud mouth (7), 3rd overflow port (24) of settling bath (14) upper end connects medial launder (15), medial launder (15) is provided with water outlet (8).The utility model be a kind of recycle high, process flexibly, the low high density of operation cost is containing phenol treatment of Organic Wastewater equipment.
Description
Technical field
The utility model relates to a kind of wastewater treatment equipment, particularly relates to a kind of high density containing phenol treatment of Organic Wastewater equipment.
Background technology
Phenolic compound is a kind of prototype matter poisonous substance, all biologically active bodies all can produce toxicity, by with skin, the contact of mucous membrane directly enters blood circulation without liver detoxification, cause cytoclasis and lose vigor, also human body is invaded by oral cavity, cause cell injury, the phenol liquid of high density can make protein coagulating, and can continue to permeate in body, deep tissue is caused to damage, if people's long-term drinking can be caused chronic poisoning by phenol polluted water, phenolic wastewater not only brings serious threat to human health, also harm is produced to animals and plants, can be that fish are poisoning even dead, with phenolic wastewater irrigated farmland, then can make crop production reduction or withered, suppress the self-sow speed of other biology, destroy the eubiosis.
The method now processing high-concentration phenolic wastewater is divided into two steps usually: first, by the phenol of high-content in waste water and derivative through pre-treatment, makes phenol in wastewater mass concentration be down to below 1000mg/L; Then, carry out second-stage treatment, reach emission request.
The pretreatment process of 1 high-concentration phenolic wastewater mainly contains:
1.1 burning disposal
This method is generally used for the waste water of phenol mass concentration higher than 7000mg/L, and wastewater treatment expense is 167 dollars/t, and handling is high, and in China, application is less.
1.2 solvent extraction
The extraction partition ratio of some organic solvent Pyrogentisinic Acid is greater than benzene and other extraction agents, thus can the phenol in waste water be extracted, when phenol mass concentration is greater than 500mg/L, single-stage extraction rate can reach about 95%, but the content of phenol in waster after extraction does not still meet emission standard, and can contain microextraction agent in waste water, so there is the selection of extraction agent and the secondary treatment problem of extract remainder in method.The efficient extraction agent of further exploitation excellent property is still developing direction from now on.
1.3 polycondensations are reclaimed
Under certain temperature, pressure condition, phenol and formaldehyde generate resol through catalyzed reaction.Usually, when phenol mass concentration is greater than 30g/L, acid polycondensation method or the process of basic polycondensation method can be adopted, the method can reduce the content of phenol in wastewater and formaldehyde simultaneously, and the resin of some amount can be reclaimed, a kind of economical and effective method of phenolic resin wastewater process, comparatively applicable to middle-size and small-size resol factory.
1.4 coagulating treatment
By adding coagulating agent, utilize the settlement action of coagulating agent suspended particle, by the Adsorption of Phenol in waste water, phenol (mass concentration is generally 500 ~ 1000mg/L) in waste water and formaldehyde content are reduced, meet the requirement of subsequent disposal, but the phenol clearance of this method is not high, is generally about 33.8%.
1.5 photoelectrocatalysis
This method is a kind of method the most frequently used at present, is generally used for the process of lower concentration phenolic wastewater.Through improving, also can be used for pre-treatment height phenolic wastewater.Its main method is: with the HNO of 0.5mol/L
3, controlling the pH value of solution is 3.0, and total organic carbon mass concentration controls at more than 0.5g/L, blowing air, with the ultraviolet lamp of 800W as light source, carries out light-catalyzed reaction.Be the phenol solution of 5g/L to mass concentration, get the Photo2Fenton reagent of 200mL, add the Fe of 0.02g/L
2+, add H three times in 0h, 2h, 4h time-division respectively
2o
22g/L.During beginning, solution becomes orange, has thereafter the precipitation of same color to generate.After 4h, the phenol degrading of about 90% ~ 95%.Second-stage treatment is carried out with biological process after filtration.
The second-stage treatment method of 2 phenolic wastewater mainly contains:
The phenolic wastewater of high density is after pre-treatment, and phenol mass concentration is usually also higher than the emission standard of 0.5mg/L, and still can not directly discharge, need carry out second-stage treatment to it, conventional method has following several.
2.1 adsorption treatment
2.1.1 charcoal absorption
Three coefficient results of process below the absorption mainly of gac Pyrogentisinic Acid: the anionresin of the reversible adsorption of non-polar compound, the pi-pi bond between sorbent material and aromatics interface and charcoal.Due to the existence of above-mentioned three kinds of processes, gac, under neutrality and acidic conditions, have high adsorption, but the absorption of Pyrogentisinic Acid does not need acidic conditions to the toxicant in water.This is because the positive charge Pyrogentisinic Acid of activated carbon surface has extremely strong interaction, can adsorbing phenol effectively.Find in research, to the absorption of polarity and nonpolar phenol, depend on the kind of gac to a great extent, but from gac, wash phenol be the very difficult work of part.On-the-spot with dynamic countercurrent activated carbon and fixed bed adsorption treatment wastewater containing phenol, content of phenol in waster can be made to reach discharging standards.The method has the advantages such as floor space is little, flow process is simple, treatment effect is stable, but its main shortcoming be gac easily stifled, not easily regenerate.If control the turbidity of water outlet well, the method is adopted also to be good.
2.1.2 resin absorption
Main employing macroporous resin makes sorbent material.Macroporous resin Pyrogentisinic Acid molecule produces larger Van der Waals force and forms π key, and adsorptive power is comparatively strong, after pretreatment, can reach discharging standards containing phenol amount.But the cost of this method is high, apply less.
2.1.3 carbon fiber adsorption and catalytic combustion
Cation exchange fibre has larger specific surface area, also can be used for the absorption of high concentration phenol.But activated carbon fiber price is high, reach 400 yuan/kg, comparatively difficult for industrial production.
2.1.4 bentonite adsorption
Because the sorbent material running costs such as gac are higher, in order to reduce running cost, adopting wilkinite to adsorb the phenol in waste water, by studying the pH etc. of bentonitic characterization of adsorption and duration of contact, initial concentration, solution, determining optimal adsorption condition.Test-results shows, duration of contact is longer, and initial concentration is higher, and the pH of solution is higher, and adsorption effect is better.
2.1.5 high polar polymer absorption agent
This high polar polymer absorption agent is polymerized by vinyl cyanide, Vinylstyrene etc., has special specific surface area, and apply in the waste water containing phenol concentration being 0.5mmol/L, effect is better.
2.2 chemical oxidation treatment
The oxygenant that chemical oxidization method adopts mainly contains permanganate, chlorine, dioxide peroxide, clorox, ozone and hydrogen peroxide etc.Wherein, ozone and dioxide peroxide are comparatively excellent dephenolize oxygenants.The oxidation capacity of ozone is two times of chlorine, and sterilizing power is hundreds of times of chlorine, when carrying out Phenol-Containing Wastewater Treatment with it, can not resemble chlorine because incomplete reaction produces foul smell.At present, English, method, U.S., day have used ozonize phenolic wastewater all.But ozonizer processing costs is higher, also fail to promote the use of in China.Dioxide peroxide is a kind of excellent disinfection sanitizer, SYNTHETIC OPTICAL WHITNER and high-efficient oxidant, its effective chlorine content is up to 26.3%, it is 263 times of chlorine oxidation ability, good combination property, security is classified as Al level by the World Health Organization, is a kind of generally acknowledged optimal renewal product of chlorine system sterilizing agent.Adopt chlorine dioxide treatment, the reaction times is short, is about 10 ~ 15min, and in pH, temperature and waste water, ammonia quantity etc. are little on reaction impact, and can not generate chlorophenol.
2.3 biological treatment
Biological treatment utilizes phenol in microbially decontaminate waste water and phenolic compound, generally adopts when phenol concentration is not high.Otherwise phenol has toxic action to bacterial classification.Main methods has: aerobic activated sludge process, biomembrance process, biological contact oxidation process, fluidized bed process etc.Biological treatment has the advantages such as better, the required expense of effect is lower, but management expectancy is high, must keep a close eye on the oil-containing situation of waste water.
In Aerobic biological process, adopt active sludge to add settling tank secondary combination treatment, controlling run parameter is: pH value 7.2, and temperature 30 DEG C, dissolved oxygen mass concentration is greater than 2.0mg/L.When phenol mass concentration is less than 1250mg/L, effect is better.When phenol mass concentration is increased to 2500mg/L and 4500mg/L, handling failure also has precipitation to generate.According to the literature, pseudomonas bacterial classification Pyrogentisinic Acid has high-performance bio Degradation; The relatively degradation effect of agitator and fluidized-bed Pyrogentisinic Acid, finds that the effect of fluidized-bed is better than the former; Pseudomonas Calcium Alginate gel is become spider body, is used successfully in fluidized bed aerosol generator, and process resol factory waste water, effect is better.Containing phenol mass concentration in waste water is 42000mg/L, needs to be diluted to 1000mg/L before entering fluidized-bed.During operation, control ph is 6.6, temperature 30 DEG C, and air input 85L/h, dissolved oxygen 2 ~ 4.5mg/L, the clearance of phenol is greater than 90%.In batch reactor, use pseudomonas Pyrogentisinic Acid to carry out biological degradation, under aerobic condition, temperature 26 DEG C, pH value 6.8, after degraded, the mass concentration of phenol is 100mg/L.
Utility model content
Technical problem to be solved in the utility model be to provide a kind of recycle high, process flexibly, the low high density of operation cost is containing phenol treatment of Organic Wastewater equipment.
In order to solve the problems of the technologies described above, the high density that the utility model provides is containing phenol treatment of Organic Wastewater equipment, the first aeration head is provided with and a pH pops one's head in regulating tank, regulating tank is provided with water-in and the first dosing mouth, first overflow port of regulating tank upper end is connected with extraction tank, the second aeration head is provided with in extraction tank, air dissolved pump and oil level probe, extraction tank is provided with upper cover and the second dosing mouth, the bottom of extraction tank connects catalyzed oxidation groove by water pump, oil level probe is connected with the system communication of water pump, the 2nd pH probe and the 3rd aeration head is provided with in catalyzed oxidation groove, catalyzed oxidation groove is provided with the 3rd dosing mouth, second overflow port of catalyzed oxidation groove upper end connects the upper end of settling bath, the centre of settling bath is provided with swash plate, the bottom of settling bath is provided with mud mouth, 3rd overflow port of settling bath upper end connects medial launder, medial launder is provided with water outlet.
Further, the bottom of settling bath is groove-like.
Further, water receiving pipe after the second overflow port, facilitates the circulation of water.
Preferably, the first dosing mouth is located at the mid-way of regulating tank.
Preferably, the second dosing mouth is located at the mid-way of extraction tank.
Preferably, the 3rd dosing mouth is located at the mid-way of catalyzed oxidation groove.
Described water pump is acid-fast alkali-proof water pump.
Adopt the high density of technique scheme containing phenol treatment of Organic Wastewater equipment, there is following beneficial effect.
1, phenol extraction most of in waste water out can be recycled.
2, the processing sequence in technique can be exchanged, process flexibly.
3, adopt this structure, can floor space be reduced, make full use of space.
4, treatment system water outlet can reach emission request.
5, physics, chemically treated advantage is combined.
6, extraction agent energy recycle, reduces operation cost.
7, in this process equipment, dosing mouth is arranged on each groove mid-way, makes mixing more abundant.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
See Fig. 1, the first aeration head 19 and pH probe 18 is provided with in regulating tank 11, regulating tank 11 is provided with water-in 1 and the first dosing mouth 21, first overflow port 23 of regulating tank 11 upper end is connected with extraction tank 12, the second aeration head 3 is provided with in extraction tank 12, air dissolved pump 25 and oil level probe 16, extraction tank 12 is provided with upper cover 2 and the second dosing mouth 22, the bottom of extraction tank 12 connects catalyzed oxidation groove 13 by acid-fast alkali-proof water pump 4, oil level probe 16 is connected with the system communication of acid-fast alkali-proof water pump 4, the 2nd pH probe 10 and the 3rd aeration head 20 is provided with in catalyzed oxidation groove 13, catalyzed oxidation groove 13 is provided with the 3rd dosing mouth 17, second overflow port 5 of catalyzed oxidation groove 13 upper end connects the upper end of settling bath 14, the centre of settling bath 14 is provided with swash plate 6, the bottom of settling bath 14 is provided with mud mouth 7, 3rd overflow port 24 of settling bath 14 upper end connects medial launder 15, medial launder 15 is provided with water outlet 8.
Further, the bottom of settling bath 14 is groove-like.
Further, water receiving pipe 9 after the second overflow port 5, facilitates the circulation of water.
Preferably, the first dosing mouth 21 is located at the mid-way of regulating tank 11.
Preferably, the second dosing mouth 22 is located at the mid-way of extraction tank 12.
Preferably, the 3rd dosing mouth 17 is located at the mid-way of catalyzed oxidation groove 13.
See Fig. 1, high density carries out PH adjustment to regulating tank 11 containing phenol organic waste water after water-in 1 is intake, one pH probe 18 is arranged at regulating tank 11 top, pH value is adjusted to automatic control, waste water in first aeration head 19 pairs regulating tank 11 carries out aeration, and the first dosing mouth 21 is for adding the medicament of adjust ph.Regulating tank 11 water outlet enters extraction tank 12 through the first overflow port 23, and extraction agent is poured into from upper cover 2, and the waste water in the second aeration head 3 pairs extraction tank 12 carries out aeration.Oil level is had to pop one's head in 16 in extraction tank 12, in extraction tank 12, extraction agent is oil phase, after having extracted, extraction agent floats over wastewater surface, therefore arrange the transfer that acid-fast alkali-proof water pump 4 realizes waste water in bottom, controlled by oil level probe 16, oil level probe 16 touches oil phase, namely acid-fast alkali-proof water pump 4 quits work, and the second dosing mouth 22 is for acid adding.Waste water enters catalyzed oxidation groove 13 through acid-fast alkali-proof water pump 4, appropriate oxygenant is added from the 3rd dosing mouth 17 in catalyzed oxidation groove 13, and the 3rd aeration head 20 carries out aeration agitation, the pH value of the 2nd pH probe 10 detection this section of reaction, because this section of reaction optimal ph is 8-9, also represent water outlet pH value simultaneously.After question response is complete, flow into settling bath 14 by the second overflow port 5, settling bath 14 is provided with swash plate 6, in groove-like bottom settling bath 14, be conducive to the sedimentation of body refuse, body refuse is discharged from mud mouth 7, and settling bath 14 water outlet is through the 3rd overflow port 24 from flowing to medial launder 15, and medial launder 15 water quality reaching standard can carry out outer row from water outlet 8, medial launder 15 also can be used as emergency tank, if change of water quality is comparatively large, processes not up to standard, medial launder 15 water can be re-started process.Water receiving pipe 9 after second overflow port 5, facilitates the circulation of water.And be provided with air dissolved pump 25 in extraction tank 12, after extraction terminates, open air dissolved pump 25, can oily water separation be accelerated.Dosing mouth is arranged on each groove mid-way, makes mixing more abundant.
Claims (7)
1. a high density is containing phenol treatment of Organic Wastewater equipment, it is characterized in that: in regulating tank (11), be provided with the first aeration head (19) and pH probe (18), described regulating tank (11) is provided with water-in (1) and the first dosing mouth (21), first overflow port (23) of described regulating tank (11) upper end is connected with extraction tank (12), the second aeration head (3) is provided with in described extraction tank (12), air dissolved pump (25) and oil level probe (16), described extraction tank (12) is provided with upper cover (2) and the second dosing mouth (22), the bottom of described extraction tank (12) connects catalyzed oxidation groove (13) by water pump, described oil level probe (16) is connected with the system communication of described water pump, the 2nd pH probe (10) and the 3rd aeration head (20) is provided with in described catalyzed oxidation groove (13), described catalyzed oxidation groove (13) is provided with the 3rd dosing mouth (17), second overflow port (5) of described catalyzed oxidation groove (13) upper end connects the upper end of settling bath (14), the centre of described settling bath (14) is provided with swash plate (6), the bottom of described settling bath (14) is provided with mud mouth (7), 3rd overflow port (24) of described settling bath (14) upper end connects medial launder (15), described medial launder (15) is provided with water outlet (8).
2. high density according to claim 1 is containing phenol treatment of Organic Wastewater equipment, it is characterized in that: the bottom of described settling bath (14) is groove-like.
3. high density according to claim 1 and 2 is containing phenol treatment of Organic Wastewater equipment, it is characterized in that: described the second overflow port (5) water receiving pipe (9) afterwards.
4. high density according to claim 1 and 2 is containing phenol treatment of Organic Wastewater equipment, it is characterized in that: described the first dosing mouth (21) is located at the mid-way of described regulating tank (11).
5. high density according to claim 1 and 2 is containing phenol treatment of Organic Wastewater equipment, it is characterized in that: described the second dosing mouth (22) is located at the mid-way of described extraction tank (12).
6. high density according to claim 1 and 2 is containing phenol treatment of Organic Wastewater equipment, it is characterized in that: the 3rd described dosing mouth (17) is located at the mid-way of described catalyzed oxidation groove (13).
7. high density according to claim 1 and 2 is containing phenol treatment of Organic Wastewater equipment, it is characterized in that: described water pump is acid-fast alkali-proof water pump (4).
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| CN201520013750.2U CN204434394U (en) | 2015-01-09 | 2015-01-09 | A kind of high density is containing phenol treatment of Organic Wastewater equipment |
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| CN201520013750.2U CN204434394U (en) | 2015-01-09 | 2015-01-09 | A kind of high density is containing phenol treatment of Organic Wastewater equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113321353A (en) * | 2021-04-23 | 2021-08-31 | 大唐环境产业集团股份有限公司 | Photoelectrocatalysis wastewater treatment system and treatment method |
| CN113754117A (en) * | 2021-09-11 | 2021-12-07 | 黄永根 | Integrated dephenolization process and device thereof |
-
2015
- 2015-01-09 CN CN201520013750.2U patent/CN204434394U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113321353A (en) * | 2021-04-23 | 2021-08-31 | 大唐环境产业集团股份有限公司 | Photoelectrocatalysis wastewater treatment system and treatment method |
| CN113321353B (en) * | 2021-04-23 | 2022-04-26 | 大唐环境产业集团股份有限公司 | Photoelectrocatalysis wastewater treatment system and treatment method |
| CN113754117A (en) * | 2021-09-11 | 2021-12-07 | 黄永根 | Integrated dephenolization process and device thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150701 Termination date: 20180109 |
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| CF01 | Termination of patent right due to non-payment of annual fee |