CN108585132A - A kind of processing method of wastewater containing phenol - Google Patents
A kind of processing method of wastewater containing phenol Download PDFInfo
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- CN108585132A CN108585132A CN201810734414.5A CN201810734414A CN108585132A CN 108585132 A CN108585132 A CN 108585132A CN 201810734414 A CN201810734414 A CN 201810734414A CN 108585132 A CN108585132 A CN 108585132A
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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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
- C02F1/4693—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrodialysis
- C02F1/4695—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrodialysis electrodeionisation
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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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
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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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
- C02F2001/46133—Electrodes characterised by the material
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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
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/46—Apparatus for electrochemical processes
- C02F2201/461—Electrolysis apparatus
- C02F2201/46105—Details relating to the electrolytic devices
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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
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/46—Apparatus for electrochemical processes
- C02F2201/461—Electrolysis apparatus
- C02F2201/46105—Details relating to the electrolytic devices
- C02F2201/46115—Electrolytic cell with membranes or diaphragms
Abstract
The present invention is a kind of processing method of wastewater containing phenol.Phenol wastewater is placed in the cathode chamber of membrane stack by this method, and saturation phenol solution is placed in anode chamber, and cell reaction is carried out under the action of DC power supply.Described device includes membrane stack, anode storage tank, cathode storage tank, wherein an anion-exchange membrane is provided among membrane stack, anion-exchange membrane will be divided into the identical chamber of two volumes inside membrane stack.The present invention is simple and efficient the removal of phenol in wastewater containing phenol, and removal rate can reach 96%, and embodying the present invention has great industrial application value.
Description
Technical field
The invention belongs to the processing of wastewater containing phenol and recovery technology field, and in particular to carry out electrolysis electricity to phenol wastewater
Dialysis handles and the method and device of recycling.
Background technology
Rich coal resources in China, large storage capacity, coal chemical industry are the effective means realized coal resources and efficiently utilized, and solve energy
One of the effective way of source shortage.However, for other industrial process, will produce in the conversion process of coal a large amount of
Coal chemical industrial waste water, it is big to be mainly characterized by waste water load amount, and waste component is complicated, and contains various organic matters, wherein content compared with
High is exactly phenol organic matter, and wherein main component is phenol.Phenolic waste water not only exists only in chemical plant, exists in system
Leather, oil plant, multiple industries such as paint manufacture, yield is big, and environmental pollution is serious.The harm of phenol is can be with human body
Hemoglobin combines, and so that biology poisoning symptom is occurred, therefore phenolic waste water has to pass through effective processing, can be only achieved discharge
Standard.
Currently, the processing method of Pyrogentisinic Acid's waste water mainly has microbial degradation method, extraction and membrane separation process etc..Micro- life
Object edman degradation Edman is mainly the metabolism using microorganism, oxidation, the substance containing phenol in Decomposition Wastewater and so that it is converted into harmless
Technology of the stable material to make water be purified, but microbial method applies in general to Low Concentration Phenol waste water, this be because
There is toxic effect, the activity of microorganism can be greatly affected microorganism for the phenolic waste water of high concentration.
1, extraction be using polluter in water or the solubility different from having in the immiscible solvent of water carry out
Separation either solvent forms complex compound with certain components in waste water and is detached.Treatment effect of the extraction to high phenol waste water
It is good, but need to complete to handle with back extraction process by multiple extraction, complex technical process.
2, the one kind of electroosmose process as membrane separating method, because fast with separating rate, low energy consumption, economic and environment-friendly etc. excellent
It puts and is used widely, but since phenol sheet is as weak acid, need additionally to be added lye adjusting to improve its dissociation degree, promote
Into separation of the phenol in electrodialysis.
Invention content
In order to realize that the phenol being simple and efficient in separation phenol wastewater, the present invention propose a kind of electrolytic electro-dialysis method Pyrogentisinic Acid
Waste water is handled, and phenol wastewater is placed in cathode chamber by this method, and saturation phenol solution is placed in anode chamber；Its primary and foremost purpose
It is to effectively remove the phenol in phenol wastewater, simultaneously penetrates into benzene negative oxygen ion and the anode reaction generation of anode chamber
Hydrogen ion combines, and generates the phenol with respect to low solubility and is precipitated in the form of oil droplet, is recycled to obtain pure phenol product, should
Process makes full use of the bronsted lowry acids and bases bronsted lowry that electrode reaction generates, and need not additionally add lye and acid solution.
The technical scheme is that：
A kind of processing method of wastewater containing phenol, this approach includes the following steps：
The first step injects pending phenol wastewater to the cathode chamber of the membrane stack of electrolytic electro-dialysis device, and keeps cathode
Cathode magnetic force driving pump is opened in the connection of room and cathode storage tank；Saturation phenol solution is injected to anode chamber, and keeps anode
Room and anode storage tank together with opening anode magnetic force driving pump；Then direct current is connected, electrolytic electro-dialysis is carried out；
Wherein, anode chamber connects the anode of direct current by inert electrode column, and cathode chamber is connected straight by inert electrode column
The cathode of galvanic electricity；The operation electric current of direct current is that the corresponding current densities of 7.82mA-1.564A are 0.1mA/cm2-20mA/cm2,
Preferably 0.782A-1.173A, corresponding current density are 10mA/cm2-15mA/cm2；The feed flow rate of cathode chamber and anode chamber
Surface velocity for 8L/h-32L/h, corresponding film is 3cm/s-12cm/s, preferably 16L/h-22L/h, corresponding film surface stream
Speed is 6cm/s-8cm/s.
Second step closes DC power supply, by cathode chamber when the phenol content in cathode chamber solution is less than 20mg/L
Solution is discharged, and goes next processing section, then refills pending phenol wastewater, opens DC power supply, continues
Electrolytic electro-dialysis；Alternatively, working as phenol concentration in anode chamber reaches supersaturation, there are a large amount of oil droplets to be precipitated in water, closes direct current electricity
Source is discharged in anolyte to container, stratification, and upper layer obtains pure phenol layer recoverable, and lower layer is saturation phenol solution
Layer.
Described anode chamber's saturation phenol solution is to be obtained after being stood in the anolyte being discharged after previous electrolytic electro-dialysis
Lower layer's solution, or be directly configured to saturated solution with phenol, strong electrolyte is added in when configuration, and strong electrolyte type is sulfuric acid
Sodium, a concentration of 80~120mg/L of sodium sulphate in solution；
The conductivity range of pending phenol wastewater is 150 μ s/cm-3600 μ s/cm in the cathode chamber, and phenol contains
Measure the waste water in 100mg/L-5500mg/L.
The electrolytic electro-dialysis device, the device include membrane stack, anode storage tank, cathode storage tank, wherein among membrane stack
It is provided with an anion-exchange membrane, anion-exchange membrane will be divided into the identical chamber of two volumes inside membrane stack；The two of membrane stack
End is each provided with inert electrode, and the inert electrode being connected with DC power cathode is cathode, and what is be connected with DC power anode is lazy
Property electrode be anode；Chamber close to positive pole is anode chamber, and the chamber close to power cathode is cathode chamber；Cathode chamber goes out
Material mouth is connected by cathode magnetic force driving pump with the import of cathode storage tank, the import of the discharge port and cathode chamber of cathode storage tank
It is connected, forming circuit；The discharge port of anode chamber is connected by anode magnetic force driving pump with the import of anode storage tank, anode storing
The discharge port of tank is connected with the import of anode chamber, forming circuit.
The anion-exchange membrane, polymer backbone are hydrocarbon backbone, partially fluorinated hydrocarbon backbone or fluoridized
Hydrocarbon backbone has on the polymer backbone of the basement membrane level-one, the amine groups of two level and three-level, quaternary amines Huo quaternary phosphine bases thick
Degree is 50-500 μm.
The inert electrode is specially iridium tantalum or titanium plating iridium inert electrode.
This method is also embodied in suitable for the characteristics of above method：The feed liquid of the anode chamber and the cathode chamber passes through storage tank and transfer tube shape
At the circuit of each self-closing.
The present invention substantive distinguishing features be：
The anode chamber of the present invention using saturation phenol solution, electric field penetrated under pushing benzene negative oxygen ion in anode chamber with
The hydrogen ion reaction that anode reaction generates generates phenol, and since the solubility of phenol is layered precipitation less than sodium phenate.In sun
The crude phenol product that pole room is saturated, can directly recycle.
The difference that phenol solubility under sodium phenate and acid condition under alkaline condition is mainly utilized in the present invention is realized and contains phenol
The processing of waste water and phenol recovery.Electrode product can be efficiently used, in the presence of sodium sulphate, cathode chamber is without additional addition
Phenol in waste water is converted to sodium phenate by lye, and benzene negative oxygen ion reaches sun under electric field promotion through anion-exchange membrane
Pole room.And the hydrogen ion effect generated in anode reaction generates phenol.Using the difference of sodium phenate and phenol solubility, in acquisition
Layer is pure phenol layer, and lower layer is the crude phenol for being saturated phenol layer.
Beneficial effects of the present invention are embodied in：
The characteristics of present invention can be chemically reacted using phenol in wastewater with alkali proposes that electrolytic electro-dialysis method removes benzene
Phenol waste water makes full use of the product hydroxyl of electrolysis, is not necessarily to additional lye, allows catholyte product to occur with phenol anti-
It answers, embodies the superiority of the present invention.In addition to this, the selective penetrated property that the present invention also utilizes anion-exchange membrane excellent, allows
It has been converted to the phenol of benzene negative oxygen ion, under the promotion of electric field force, through anion-exchange membrane, has obstructed other cations thoroughly
It crosses, embodying Pyrogentisinic Acid of the present invention has excellent processing capacity.Advantages of the present invention is also embodied in, and is generated using anode chamber
Hydrogen ion, allow its with benzene negative oxygen ion further occur chemical reaction generate phenol, to reach by the phenol in waste water into
The purpose of row recycling.The present invention is simple and efficient the removal of phenol in wastewater containing phenol, and removal rate can reach 96%, makes to contain benzene
Phenol waste water reaches the requirement for being discharged into next workshop section, by being continuously added new pending waste water, and anode feed liquid is allowed constantly to follow
The mode of ring can make the supersaturation of anode feed liquid and oil droplet is precipitated, and after static layering, upper layer phenol can directly recycle profit
With lower layer is saturation phenol feed liquid, and being saturated phenol feed liquid can be recycled for multiple times, and embodying the present invention has greatly
Industrial application value.
Description of the drawings
Fig. 1 is existing bipolar membrane electrodialysis device and process flow chart；
Fig. 2 is the electrolytic electro-dialysis device technique flow chart of the present invention；
Fig. 3 is the electrolytic electro-dialysis device membrane stack schematic diagram of the present invention；
Figure label：1EED DC power supplies；2 anode material liquid tanks；3 cathode material liquid tanks；4 anode magnetic force driving pumps；5 cathode magnetic
Power-driven pump；6EED membrane stacks；7,8 fixing devices；9 anion-exchange membranes；10,11 be inert electrode column；12 be iridium tantalum inertia electricity
Pole
Specific implementation mode
The processing and recycling of present invention be described in more detail by the following examples Pyrogentisinic Acid's waste water, but the reality of the present invention
It is without being limited thereto to apply mode.
Existing bipolar membrane electrodialysis method processing phenolic waste water technique is as shown in Figure 1：For membrane stack by Bipolar Membrane, anode is bipolar
Film, which collectively forms, needs multiple films, and the feed liquid in storage tank enters membrane stack by pumped, and the feed liquid after reaction is pumped into newly
Storage tank, do not constitute closed circuit, the lye in lye storage tank enters membrane stack by pumped, and by the feed liquid after reaction
It is pumped into lye storage tank again and forms closed circuit, the anode chamber and the cathode chamber forms individual closed circuit by respective pump.
Electrolytic electro-dialysis device technique flow chart of the present invention is formed by connecting as shown in Figure 2 by following manner：Applying direct current
Source 1 is connected by the inert electrode column 10,11 at conducting wire and the both ends of EED membrane stacks 6, constitutes the anode and cathode of EED, anode storage
The feed liquid of batch can 2 constitutes closed circulation by 4 blowback anode chamber of anode magnetic force driving pump, and the waste water of cathode storage tank 3 passes through the moon
Magnetic force driving pump 5 blowback cathode chamber in pole also constitutes closed circuit, by the driving of pump feed liquid and waste water is constantly recycled.
Fig. 3 is the membrane stack schematic diagram of the present invention, and the anion-exchange membrane (1) 9 that membrane stack is produced by Shandong day dimension film adds
Filter, gasket, fixing device 7,8 and iridium tantalum or titanium plating the iridium inert electrode 12 being embedded in organic glass, form EED films
The effective area of heap 6, film is 78.2cm2, corresponding length and width are respectively：11.5cm*6.9cm；The anion-exchange membrane,
Its polymer backbone is hydrocarbon backbone, partially fluorinated hydrocarbon backbone or fluoridized hydrocarbon backbone, the polymer bone of the basement membrane
It is 50-500 μm to have level-one, two level and tertiary amine group, quaternary amines Huo quaternary phosphine bases, thickness on frame, and spacer thickness is
1.096mm。
The electrolytic electro-dialysis device of the present invention is as shown in Fig. 2, its composition includes anode material liquid tank 2,3 He of cathode material liquid tank
EED membrane stacks 6；Wherein, anode material liquid tank 2 is connected with the lower part of the anode chamber of heap film 6, top and the anode material liquid tank 2 of anode chamber
Top be connected, forming circuit；Cathode material liquid tank 3 is connected with the lower part of the cathode chamber of heap film 6, the top of cathode chamber and cathode material
The top of flow container 3 is connected, forming circuit；The anode of DC power supply 1 is connected with the anode of heap film, the cathode and heap of DC power supply 1
The cathode of film is connected；
The composition of the heap film 6 is as shown in figure 3, composition includes anion-exchange membrane 9, gasket, grid and film two
The organic glass fixing device 7,8 at end and the iridium tantalum being embedded in organic glass or titanium plating iridium inert electrode 12, pass through both ends
Inert electrode column 10,11 connects and composes anode and cathode respectively at positive pole cathode by conducting wire.Wherein by Shandong day dimension film
The anion-exchange membrane (1) 9 of production is plus filter, gasket and organic glass fixing device 7,8 and is embedded in organic glass
Inert electrode 12 in glass forms EED membrane stacks 6, and the effective area of film is 78.2cm2, corresponding length and width are respectively：11.5cm*
6.9cm, spacer thickness 1.096mm.Membrane stack 6 is 12*7cm with fixed size in organic glass is respectively embedded in2Inertia iridium
Tantalum or titanium plating iridium electrode 12 are connected to form anode and cathode and placement by inert electrode column 10,11 and power positive cathode
EED fixing devices 7,8 at electrode both ends are clamped by bolt, form electrolytic electro-dialysis device；
The present invention reaction mechanism be：
Pending phenolic waste water is added in cathode chamber in the present invention, and anode chamber is added saturation phenol solution, utilizes alkaline item
The difference of phenol solubility realizes processing and the phenol recovery of phenol wastewater under sodium phenate and acid condition under part.
The present invention reaction mechanism be：
C6H5OH+OH-→C6H5O-+H2O
C6H5O-+H+→C6H5OH
And the reaction mechanism of current bipolar membrane electrodialysis treatment phenol wastewater is：By Bipolar Membrane, cation-exchange membrane,
The assembling mode of Bipolar Membrane constitutes membrane stack, and wherein Bipolar Membrane is collectively formed by the moon, cation-exchange membrane, and the anion of Bipolar Membrane is handed over
It is opposite with cathode to change film, cation-exchange membrane is opposite with anode, is converted into the form of phenol sodium by phenol by additional lye, will
Phenol sodium is added to the cavity block of Bipolar Membrane and the diluting compartment of cation-exchange membrane composition is expected in room, and sodium ion is allowed to penetrate under the electric field
Cation-exchange membrane, the hydrogen ion generated using Bipolar Membrane electrolysis water generate phenol with phenol sodium, realize that phenol sodium is converted to phenol
Purpose.As shown in Figure 1, membrane stack, which is constituted, needs multiple films, Bipolar Membrane is expensive and performance less stable, electrode product do not have
Effect utilizes.
Embodiment 1
Wastewater containing phenol is handled using the above method, pending wastewater containing phenol is first added into cathode chamber, is measured initial
Conductivity is 1300us/cm, and phenol content 100mg/L, anode chamber is saturation phenol solution.The anode chamber and the cathode chamber material liquid volume is protected
It holds identical；Opening magnetic force driving pump makes two electrode chamber solution be recycled with the bubble in remover in respective closed circuit, waits for
DC power supply is then turned on after bubble is drained to be operated.Operation electric current is 0.6647A, and corresponding current density is 8.5mA/cm2,
Feed velocity is 8L/h, and after run time 120min, the phenol removal rate in raw material waste water reaches 93.96%, benzene in cathode chamber
Phenol content is less than 20mg/L, and phenol concentration reaches supersaturation in anode chamber, has a large amount of oil droplets to be precipitated in water, discharge anolyte to appearance
In device, anode chamber's feed liquid obtains crude phenol after standing, and upper layer obtains pure phenol layer recoverable, and lower layer is saturation phenol solution
The exclusion of cathode chamber feed liquid is gone next processing section to carry out electroxidation experiment and is further processed phenolic waste water, then notes again by layer
Enter pending phenolic waste water, opens DC power supply, continue electrolytic electro-dialysis.
Embodiment 2
According to the present invention, phenolic waste water is handled using the method, pending wastewater containing phenol is first added into cathode chamber,
It is 150us/cm, phenol content 100mg/L, identical, the operating process of the anode chamber and the cathode chamber material liquid volume holding to measure initial conductivity
It is identical with embodiment 1.Operation electric current is 1.173A, and corresponding current density is 15mA/cm2, feed velocity 20L/h, correspondence
Film surface flow velocity be 7.4cm/s, operating time 120min, phenol removal rate is 94.6% at this time, and phenol contains in cathode chamber
Amount is less than 20mg/L, and phenol concentration reaches supersaturation in anode chamber, has a large amount of oil droplets to be precipitated in water, discharge anolyte to container
In, anode chamber's feed liquid obtains crude phenol after standing, upper layer obtains pure phenol layer recoverable, and lower layer is saturation phenol solution
Layer closes DC power supply, goes next processing section progress electroxidation experiment to be further processed phenol the exclusion of cathode chamber feed liquid and gives up
Then water refills pending phenolic waste water, open DC power supply, continue electrolytic electro-dialysis.
Embodiment 3
When the present embodiment handles wastewater containing phenol, experimentation is identical with embodiment 1, and pending contain is added into cathode chamber
Phenol waste water, it is 1000mg/L that test initial conductivity, which is 200us/cm phenol contents, and experimentation is on the basis of experimental example 1,2
On, operation electric current 0.215A, corresponding current density is 2.75mA/cm2, feed velocity 20L/h, corresponding film surface stream
Fast 7.4cm/s, experiment run time are 120min, and phenol removal rate is 74.51%, and phenol concentration reaches satiety in anode chamber
With there are a large amount of oil droplets to be precipitated in water, close DC power supply, be discharged in anolyte to container, anode chamber's feed liquid obtains after standing
Crude phenol, upper layer obtain pure phenol layer recoverable, and lower layer is saturation phenol solution layer.
Embodiment 4
The present embodiment uses with the embodiment described above identical experimentation, measures the pending wastewater containing phenol of cathode chamber
Conductivity be 3000us/cm, phenol content 100mg/L, electric current is 1.27A at this time, and corresponding current density is
16.24mA/cm2, other processes keep identical with embodiment 1, and run time is still 120min, and phenol removal rate is
90.24%, phenol content is less than 20mg/L in cathode chamber, closes DC power supply, and next processing work is gone in the exclusion of cathode chamber feed liquid
The experiment of Duan Jinhang electroxidation is further processed phenolic waste water, then refills pending phenolic waste water, opens DC power supply, after
It is continuous to carry out electrolytic electro-dialysis.
The present invention is can be seen that handling conductivity from embodiment 1-4>The waste water of 150us/cm has excellent processing
Effect is by preferably different current density and feed flow rate, in 120min so that the removal rate of wastewater containing phenol reaches
96%, while anode feed liquid can obtain crude phenol, upper layer is pure saturation phenol layer, can by constantly concentrating after static layering
To recycle, lower layer can be pumped into anode chamber again for saturation phenol solution and recycle, and realize and gone to phenol wastewater
Except the purpose with recycling.
Unaccomplished matter of the present invention is known technology.
Claims (7)
1. a kind of processing method of wastewater containing phenol, it is characterized in that this approach includes the following steps：
The first step injects pending phenol wastewater to the cathode chamber of the membrane stack of electrolytic electro-dialysis device, and keep cathode chamber with
Cathode magnetic force driving pump is opened in the connection of cathode storage tank；To anode chamber inject saturation phenol solution, and keep anode chamber with
Anode storage tank together with opening anode magnetic force driving pump；Then direct current is connected, electrolytic electro-dialysis is carried out；
Wherein, anode chamber connects the anode of direct current by inert electrode column, and cathode chamber connects direct current by inert electrode column
Cathode；The operation electric current of direct current is 7.82 mA-1.564 A, and corresponding current density is 0.1 mA/cm2-20 mA/cm2；
The feed flow rate of cathode chamber and anode chamber is 8 L/h-32 L/h；The surface velocity of corresponding film is 3 cm/s -12 cm/s；
Second step closes DC power supply, by the molten of cathode chamber when the phenol content in cathode chamber solution is less than 20 mg/L
Liquid is discharged, and goes next processing section, then refills pending phenol wastewater, opens DC power supply, continues electricity
Solve electrodialysis；Alternatively, working as phenol concentration in anode chamber reaches supersaturation, there are a large amount of oil droplets to be precipitated in water, closes DC power supply,
It is discharged in anolyte to container, stratification, upper layer obtains pure phenol layer recoverable, and lower layer is saturation phenol solution layer；
Described anode chamber's saturation phenol solution is to be obtained down after being stood in the anolyte being discharged after previous electrolytic electro-dialysis
Layer solution, or be directly configured to saturated solution with phenol, when configuration, are added strong electrolyte inorganic salts, in solution strong electrolyte without
A concentration of 80 ~ 120mg/L of machine salt；
The conductivity range of pending phenol wastewater is 150 μ s/cm-3600 μ s/cm, phenol content in the cathode chamber
In the waste water of 100 mg/L-5500 mg/L.
2. the processing method of wastewater containing phenol as described in claim 1, it is characterized in that the operation electric current is 0.782 A-
1.173 A, current density are 10 mA/cm2-15 mA/cm2 。
3. the processing method of wastewater containing phenol as described in claim 1, it is characterized in that the cathode chamber and anode chamber into
Stream speed is 16 L/h-22 L/h；Film surface flow velocity is 6 cm/s -8 cm/s.
4. the processing method of wastewater containing phenol as described in claim 1, it is characterized in that the strong electrolyte inorganic salts are sulphur
Sour sodium.
5. a kind of electrolytic electro-dialysis device, it is characterized in that the device includes membrane stack, anode storage tank, cathode storage tank, wherein film
An anion-exchange membrane is provided among heap, anion-exchange membrane will be divided into the identical chamber of two volumes inside membrane stack；Film
The both ends of heap are each provided with inert electrode, and the inert electrode being connected with DC power cathode is cathode, with DC power anode phase
Inert electrode even is anode；Chamber close to positive pole is anode chamber, and the chamber close to power cathode is cathode chamber；Cathode
The discharge port of room is connected by cathode magnetic force driving pump with the import of cathode storage tank, the discharge port and cathode chamber of cathode storage tank
Import be connected, forming circuit；The discharge port of anode chamber is connected by anode magnetic force driving pump with the import of anode storage tank, sun
The discharge port of pole storage tank is connected with the import of anode chamber, forming circuit.
6. the as claimed in claim 5 electrolytic electro-dialysis device, it is characterized in that the inert electrode be specially iridium tantalum or
Titanium plates iridium inert electrode.
7. the electrolytic electro-dialysis device as claimed in claim 5, it is characterized in that the anion-exchange membrane, polymer
Skeleton is hydrocarbon backbone, partially fluorinated hydrocarbon backbone or fluoridized hydrocarbon backbone, is had on the polymer backbone of the basement membrane
The amine groups of level-one, two level and three-level, quaternary amines Huo quaternary phosphine bases, thickness are 50-500 μm.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110980895A (en) * | 2019-12-17 | 2020-04-10 | 嘉兴学院 | Method and device for electro-adsorption and degradation removal of antibiotics from water |
| CN112931005A (en) * | 2021-02-05 | 2021-06-11 | 四川省中科曙天环保科技有限公司 | Method for planting medlar by using electrolyzed water |
| CN114368864A (en) * | 2021-12-30 | 2022-04-19 | 嘉兴诚毅环保科技有限责任公司 | Industrial sewage treatment device |
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| CN110980895B (en) * | 2019-12-17 | 2022-01-04 | 嘉兴学院 | Method and device for electro-adsorption and degradation removal of antibiotics from water |
| CN112931005A (en) * | 2021-02-05 | 2021-06-11 | 四川省中科曙天环保科技有限公司 | Method for planting medlar by using electrolyzed water |
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