CN109231730A - A kind of high-content phenol-containing wastewater processing method - Google Patents
A kind of high-content phenol-containing wastewater processing method Download PDFInfo
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- CN109231730A CN109231730A CN201811395922.1A CN201811395922A CN109231730A CN 109231730 A CN109231730 A CN 109231730A CN 201811395922 A CN201811395922 A CN 201811395922A CN 109231730 A CN109231730 A CN 109231730A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/26—Treatment of water, waste water, or sewage by extraction
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
- C02F2101/345—Phenols
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The present invention provides a kind of high-content phenol-containing wastewater processing method, comprising the following steps: step 1 chooses high-content phenol wastewater, is extracted repeatedly using organic extraction solvent, merges organic phase, removed remaining organic extraction solvent in water phase, obtain pretreated waste water;Step 2, the phenol wastewater for obtaining step 1 are sent into cross_flow rotating packed bed by inlet tube, initial distribution is carried out under liquid distribution trough effect, then enter cross_flow rotating packed bed under the drive of rotor, complete the infinitesimal of drop, enter the adsorbent surface of supported catalyst later, simultaneously and oxidant completes the degradation of phenol wastewater under catalyst phenol-containing wastewater inorganic agent and hypergravity double action, is most discharged into reservoir through outlet tube afterwards.The present invention will adsorb and the coupling of catalysis, realizes the degradation integration of phenol, improves the degradation rate of phenol.
Description
Technical field
The present invention relates to phenol-containing wastewater processing technique more particularly to a kind of high-content phenol-containing wastewater processing methods.
Background technique
The source of phenol wastewater is very extensive, produces mainly from coal chemical industry, pharmacy corporation, petrochemical industry and phenolic resin
Producer etc..Phenolic compound can make protein coagulating, to all toxic property of almost all creatures, be chronically exposed to high concentration steam
Down or the water that polluted by phenol is drunk, chronic accumulation can be caused to be poisoned, canceration, mutation and distortion effect are caused to human body, endangered
It greatly, is one of the poisonous and harmful waste water that emphasis solution is classified as in national water pollution control.Phenol can pass through skin, the mucous membrane with people
Contact chemically reacts, and forms insoluble protein, and cell is made to lose vigor, and highly concentrated phenol solution can also make protein
Solidification.Phenolic substances is discharged into water, can generate greatly harm to water body and biology therein.Phenol wastewater is mainly from coke
Change factory, gasworks, petrochemical plant and insulating material factory etc..The content for reducing Phenolic Compounds From Wastewater Containing Phenols substance, can be greatly
Reduce destruction and pollution of the phenol wastewater to environment.China's " integrated wastewater discharge standard " regulation plant drainage phenol content <
2.0mg/L, national grade one discharge standard are phenol content < 0.5mg/L.A most important approach for administering phenol wastewater is to grind
The recovery process of phenolic substances is studied carefully, to realize the recycling of resource.
More to the research of phenol wastewater both at home and abroad at present, processing method is varied, is generally divided into physical method, chemistry
Method, biochemical process etc..Physical method is at present industrially using more treating method, and application is relatively broad, it has operation
Range is wide, and regeneration is easy, and the advantages of high treating effect, but also exists simultaneously complex process, big, the processing cost height of investment etc. and asks
Topic.
Summary of the invention
It is an object of the present invention to for above-mentioned phenolic wastewater treatment method there are complex process, investment is big, processing cost
High problem proposes a kind of high-content phenol-containing wastewater processing method, and the present invention will adsorb and the coupling of catalysis, realizes phenol
Degradation integration, improves the degradation rate of phenol.
To achieve the above object, the technical solution adopted by the present invention is that: a kind of high-content phenol-containing wastewater processing method:
Step 1 chooses high-content phenol wastewater, is extracted repeatedly using organic extraction solvent, merges organic phase, removes water phase
In remaining organic extraction solvent, obtain pretreated waste water;
Step 2, the phenol wastewater for obtaining step 1 are sent into cross_flow rotating packed bed by inlet tube, in liquid distribution
Device effect is lower to carry out initial distribution, and cross_flow rotating packed bed is then entered under the drive of rotor, completes the infinitesimal of drop,
Later enter supported catalyst adsorbent surface, while and oxidant it is dual in catalyst phenol-containing wastewater inorganic agent and hypergravity
The lower degradation for completing phenol wastewater of effect, is most discharged into reservoir through outlet tube afterwards.
Further, organic extraction solvent is ethyl acetate, chloroform or ether.
Further, adjusting vacuum degree is 1~3kPa in step 1, temperature is 10~30 DEG C and removes water using distillation mode
Remaining organic extraction solvent in phase.
Further, the adsorbent is any one in active carbon, aluminium oxide, ceria, zeolite and molecular sieve,
Adsorbent amount is 5-100g/l.
Further, the concentration of the phenol wastewater is 1-1000mg/L, and the spray in cross_flow rotating packed bed is close
Degree is 0.2-3.0m3/m2/h;High gravity factor is 5-100.
The high-content phenol-containing wastewater inorganic agent, including modified argil, zinc dihydrogen phosphate, microbial bacteria, chitosan and paint
Enzyme, the concentration of the chitosan are 0.3-0.5g/L, and the concentration of the laccase is 10~20U/mL.
Further, the high-content phenol-containing wastewater includes one of phenol, catechol and hydroquinone or a variety of.
Further, the microbial bacteria is solution enzyme pseudomonad and Bacillus sphaericus.
A kind of device being able to achieve above-mentioned high-content phenol-containing wastewater processing, structure includes extraction cells and hypergravity rotary filling
Expect bed, cross_flow rotating packed bed, which is connected to the motor, to be connect, and rotor is set in cross_flow rotating packed bed, connects liquid distribution on rotor
Device is arranged packing layer and conversion zone on rotor outward, filler is filled on packing layer, the absorption of supported catalyst is set in conversion zone
Agent;The shaft of rotor and motor connects, and inlet, liquid outlet are set on cross_flow rotating packed bed, and inlet passes through liquid pump and connects
Reservoir is equipped with fluid flowmeter between liquid pump and inlet;Liquid outlet connects reservoir;Cross_flow rotating packed bed side is set
Air inlet, air inlet connect gas generator.
Further, load area of the catalyst in conversion zone is circular ring shape.
Further, the circular ring shape size is 1 to four/20ths of cross-sectional area in cross_flow rotating packed bed
/ tri-.
Further, the filler is one of common Pall ring, silk screen, Raschig ring, ripple.
High-content phenol-containing wastewater inorganic agent of the present invention, has the advantage that compared with prior art
1) chitosan is a kind of natural organic high-molecular flocculant, in city domestic sewage, industrial discharge water process
To widely applying.Chitosan is nontoxic, easily biological-degradable, not will cause secondary pollution and resourceful, effectively to life
The coloration of sewage carries out purified treatment, easily filters, and has the characteristics that efficient, cleaning, safety.
2) laccase is an oxidation process, removes the macromolecular sediment of generation.
3) it uses laccase and chitosan is jointly processed by phenol wastewater, can effectively degrade phenol, can directly obtain except phenol
Colourless solution afterwards significantly reduces the processing pressure of subsequent water treatment system.Laccase and chitosan are able to carry out cross-linking reaction,
Laccase as biocatalyst, can degrading phenol substance, phenol can be oxidized to quinone, and quinone can be with the amino on chitosan
Covalent effect occurs by schiff bases or Michael addition reaction, reaction generates sediment not soluble in water, to reach drop phenol
With the effect of decoloration while progress.
4) coupling that absorption and catalysis are realized under Elevated Gravity realizes the degradation integration of phenol, improves
The degradation rate of phenol.High-speed rotating adsorbent surface is constantly cleaned by drop, facilitates removing for reaction product, is had higher
Degradation rate.The range for handling material is wide, can be used for the processes such as coking wastewater and gasification waste water.
Specific embodiment
The present invention is further described with reference to embodiments:
Embodiment 1
Present embodiment discloses a kind of high-content phenol-containing wastewater processing methods, comprising the following steps:
Step 1 chooses high-content phenol wastewater, is extracted repeatedly using organic extraction solvent, merges organic phase, removes water phase
In remaining organic extraction solvent, obtain pretreated waste water;
Step 2, the phenol wastewater for obtaining step 1 are sent into cross_flow rotating packed bed by inlet tube, in liquid distribution
Device effect is lower to carry out initial distribution, and cross_flow rotating packed bed is then entered under the drive of rotor, completes the infinitesimal of drop,
Later enter supported catalyst adsorbent surface, while and oxidant it is dual in catalyst phenol-containing wastewater inorganic agent and hypergravity
The lower degradation for completing phenol wastewater of effect, is most discharged into reservoir through outlet tube afterwards.
Organic extraction solvent is ethyl acetate, chloroform or ether.
In step 1 adjust vacuum degree be 1~3kPa, temperature be 10~30 DEG C using distillation modes remove it is remaining in water phase
Organic extraction solvent.
The adsorbent is any one in active carbon, aluminium oxide, ceria, zeolite and molecular sieve, and adsorbent is used
Amount is 5-100g/l.
The concentration of the phenol wastewater is 1-1000mg/L, and the sprinkle density in cross_flow rotating packed bed is 0.2-
3.0m3/m2/h;High gravity factor is 5-100.
A kind of high-content phenol-containing wastewater inorganic agent, including modified argil, zinc dihydrogen phosphate, microbial bacteria, chitosan and paint
Enzyme, the concentration of the chitosan are 0.3-0.5g/L, and the concentration of the laccase is 10~20U/mL.
The high-content phenol-containing wastewater includes one of phenol, catechol and hydroquinone or a variety of.
The microbial bacteria is solution enzyme pseudomonad and Bacillus sphaericus.
Present embodiment discloses a kind of devices for being able to achieve above-mentioned high-content phenol-containing wastewater processing, and structure includes extraction cells
And cross_flow rotating packed bed, cross_flow rotating packed bed, which is connected to the motor, to be connect, and rotor, rotor are set in cross_flow rotating packed bed
Upper connection liquid distribution trough is arranged packing layer and conversion zone on rotor outward, filler is filled on packing layer, load is set in conversion zone
The adsorbent of catalyst;The shaft of rotor and motor connects, and sets inlet, liquid outlet, inlet on cross_flow rotating packed bed
Reservoir is connected by liquid pump, fluid flowmeter is equipped between liquid pump and inlet;Liquid outlet connects reservoir;Hypergravity rotation
Packed bed side sets air inlet, and air inlet connects gas generator.
Load area of the catalyst in conversion zone is circular ring shape.
The circular ring shape size is 3/1 to four/20ths of cross-sectional area in cross_flow rotating packed bed.
The filler is one of common Pall ring, silk screen, Raschig ring, ripple.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations;To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement;And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (6)
1. a kind of high-content phenol-containing wastewater processing method, which comprises the following steps:
Step 1 chooses high-content phenol wastewater, is extracted repeatedly using organic extraction solvent, merges organic phase, removes residual in water phase
The organic extraction solvent stayed, obtains pretreated waste water;
Step 2, the phenol wastewater for obtaining step 1 are sent into cross_flow rotating packed bed by inlet tube, are made in liquid distribution trough
Initial distribution is carried out under, and cross_flow rotating packed bed is then entered under the drive of rotor, completes the infinitesimal of drop, later
Into the adsorbent surface of supported catalyst, while and oxidant in catalyst phenol-containing wastewater inorganic agent and hypergravity double action
The lower degradation for completing phenol wastewater, is most discharged into reservoir through outlet tube afterwards.
2. high-content phenol-containing wastewater processing method according to claim 1, which is characterized in that organic extraction solvent is acetic acid second
Ester, chloroform or ether.
3. high-content phenol-containing wastewater processing method according to claim 1, which is characterized in that adjusting vacuum degree in step 1 is 1
~3kPa, temperature are 10~30 DEG C and remove remaining organic extraction solvent in water phase using distillation mode.
4. high-content phenol-containing wastewater processing method according to claim 1, which is characterized in that the adsorbent be active carbon,
Any one in aluminium oxide, ceria, zeolite and molecular sieve, adsorbent amount 5-100g/l.
5. high-content phenol-containing wastewater processing method according to claim 1, which is characterized in that the concentration of the phenol wastewater is
1-1000mg/L, the sprinkle density in cross_flow rotating packed bed are 0.2-3.0m3/m2/h;High gravity factor is 5-100.
6. high-content phenol-containing wastewater processing method according to claim 1, which is characterized in that at the high-content phenol-containing wastewater
Agent, including modified argil, zinc dihydrogen phosphate, microbial bacteria, chitosan and laccase are managed, the concentration of the chitosan is 0.3-
0.5g/L, the concentration of the laccase are 10~20U/mL.
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CN201811395922.1A CN109231730A (en) | 2018-11-22 | 2018-11-22 | A kind of high-content phenol-containing wastewater processing method |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN111302499A (en) * | 2019-11-07 | 2020-06-19 | 桂林理工大学 | Method for rapidly catalyzing and degrading diethylstilbestrol |
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2018
- 2018-11-22 CN CN201811395922.1A patent/CN109231730A/en not_active Withdrawn
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111302499A (en) * | 2019-11-07 | 2020-06-19 | 桂林理工大学 | Method for rapidly catalyzing and degrading diethylstilbestrol |
CN111302499B (en) * | 2019-11-07 | 2022-04-08 | 桂林理工大学 | Method for rapidly catalyzing and degrading diethylstilbestrol |
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