CN104556497B - Method and device for removing organic pollutants in lignite upgrading condensed water - Google Patents
Method and device for removing organic pollutants in lignite upgrading condensed water Download PDFInfo
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- CN104556497B CN104556497B CN201410769028.1A CN201410769028A CN104556497B CN 104556497 B CN104556497 B CN 104556497B CN 201410769028 A CN201410769028 A CN 201410769028A CN 104556497 B CN104556497 B CN 104556497B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 169
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- Water Treatment By Electricity Or Magnetism (AREA)
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Abstract
The invention provides a method for removing organic pollutants in lignite upgrading condensed water. The method for removing the organic pollutants in lignite upgrading condensed water by combining electrocoagulation and adsorption comprises the following steps of simultaneously carrying out electrochemical oxidation, electrocatalysis and electrocoagulation on the lignite upgrading condensed water so that the organic pollutants in the lignite upgrading condensed water are fully decomposed and are fully flocculated; and filtering the flocculated supernatant with lignite-based activated carbon to remove the residual pollutants to obtain purified water. The invention also provides a device for removing organic pollutants in lignite upgrading condensed water. The device comprises a water storage tank, an electrocoagulation rector, a sludge discharge device and a filtration device. The lignite upgrading condensed water is treated by virtue of the method and the device, good treatment effects on non-degradable organic pollutants such as dioxin, polycyclic aromatic hydrocarbon and halogenated hydrocarbon are achieved and the safe reuse or outward discharge can be realized.
Description
Technical field
Field of waste water treatment of the present invention, is related to the processing method of brown coal upgrading condensed water and in particular to a kind of remove brown coal
The method and apparatus of persistent organic pollutants in upgrading condensed water.
Background technology
A kind of extremely low rudimentary coal of degree of coalification of brown coal, has water content high, in open-air atmosphere the features such as easy-weathering.Brown
The moisture content of coal is higher, typically between 40%-60%.Therefore, brown coal have to pass through the methods such as mechanical presses, hot pressing, pyrolysis
Remove moisture therein to obtain the brown coal of high-quality, this process is referred to as brown coal upgrading.In brown coal grading process, brown coal
The moisture of middle 80%-90% can be extruded.Remove the moisture of loss in technical process, the producing water ratio in brown coal grading process is general
20% about.Therefore, during scale industrial production, the water volume that brown coal upgrading produces is huge.China is a water
Resource country extremely in short supply.Therefore, carry out after brown coal upgrading condensed water being processed reclaiming, process after be used, tool
There are important environment, ecological and economic implications.Water process and the research using aspect are condensed for brown coal upgrading, rarely has both at home and abroad
Research.Zhang Chunhui research team of China Mining Univ. (Beijing) (i.e. the present inventor team) once adopted anaerobic- anoxic- oxic biological
After processing method, LUBAF method, Ozonation, catalytic oxidation, artificial swamp method etc. are processed to brown coal upgrading condensed water
The research of reuse.However, the studies above only lays particular emphasis on the removal to Conventional pollution in brown coal upgrading condensed water, do not consider
Removal to difficult degradation persistent organism in brown coal upgrading condensed water, holds currently, with respect to difficult degradation in brown coal upgrading condensed water
The removal research of property organic matter have not been reported long.
, similar to coal chemical industrial waste water, pollutant component therein is complicated for the water quality of brown coal upgrading condensed water, and pollutant levels become
Change very big.Brown coal upgrading condensed water, after Typical physical, chemistry and biological treatment, still contains two English, many cyclophanes in water outlet
The pollutants such as hydrocarbon, halogenated hydrocarbons.Although these pollutant contents are low, its toxicity is very big, there is the great risk of ecological aspect, right
Growth of microorganism in wastewater treatment is inhibited.If these pollutants eventually enter into human body, huge health can be caused
Risk problem.Conventional treatment method can not get rid of above-mentioned pollutant.Therefore, it is necessary to using deep treatment method to above-mentioned pollution
Thing is effectively treated.
For the deep treatment method of brown coal upgrading condensed water, mainly there are bi-membrane method and artificial swamp method etc. at present.Double films
Method is method waste water being processed using ultrafiltration and reverse osmosis membrane assembly, and this method one-time investment and operating cost are all relatively
High.And artificial swamp method floor space is big, treatment effeciency is low, by seasonal effect larger the problems such as.Therefore, it is necessary to exploitation effectively,
Practical advanced treating new technology is realizing the effective removal to persistent pollutant in brown coal upgrading condensed water.
It is an object of the invention to hardly possible in brown coal upgrading condensed water is removed using a kind of electric flocculation-filtration adsorption combined technology
The method of degraded persistence organic pollutant, has one-time investment and operating cost is low, and treatment effeciency is high, and technique realizes letter
Singly, the features such as overall process environmental protection.
Content of the invention
The present invention is directed to the deficiency that above-mentioned brown coal upgrading condenses in water technology, according to the water quality of brown coal upgrading condensed water
A kind of feature, there is provided the method and apparatus that removal brown coal upgrading condenses organic pollutants.With the inventive method and device
Carry out advanced treating to through processed conventionally brown coal upgrading condensed water, to remove two English in brown coal upgrading condensed water, many
The persistence organic pollutants such as PAH, halogenated hydrocarbons so that brown coal upgrading condensed water after treatment can with safe reuse or
Outer row.
One aspect of the present invention provides a kind of method removing brown coal upgrading condensation organic pollutants, walks including following
Suddenly：
Pending brown coal upgrading condensed water is incorporated in electric flocculation reactor；
In electric flocculation reactor, electrochemical oxidation, electro-catalysis and electric flocculation are carried out simultaneously to described brown coal upgrading condensed water
Process, so that the organic pollution in described brown coal upgrading condensed water is fully decomposed, thus to described brown coal upgrading condensed water
Middle organic pollution is fully flocculated；
By carrying out at sedimentation to the brown coal upgrading condensed water having carried out electrochemical oxidation, electro-catalysis and electric flocculation process
Reason, obtains the supernatant water outlet eliminating organic pollutant；
By described supernatant water outlet is carried out with further filtration treatment, remove amounts of residual contamination therein, obtain net
Water.
Wherein, in described electric flocculation reactor, the aluminium sheet using the power on and the nano zine oxide of energising are to described brown coal
Upgrading condensed water carries out electrochemical oxidation simultaneously and electro-catalysis is processed.
Particularly, described nano zine oxide is white powder, and particle diameter is 40-60nm, and specific surface area is 50-70m2/g.
In described electric flocculation reactor, the aluminium sheet using the power on has carried out electrochemical oxidation to inclusion and electro-catalysis is processed
Described brown coal upgrading condensed water carry out electric flocculation process.
In electric flocculation reactor, by direct current, capturing electronics on anode makes oxidation operation decompose.
Nano zine oxide is a kind of new high function fine chemistry industry inorganic product, and its particle diameter is between 1-100 nanometer so that receiving
Rice zinc oxide creates skin effect and bulk effect, has great specific surface area, higher electron transmission and catalytic performance,
So that it is respectively provided with superior function at aspects such as magnetic, light, electricity, sensitiveness.In the present invention, nano zine oxide one side is as electricity
The catalyst of chemical reaction, because nano zine oxide size is little, specific surface area big, the difference within surface key and particle, table
Face Atomic coordinate is not congruent so that the active position on its surface is increased, and defines rough atomic stepses, increases reaction
Contact surface, therefore, in electrochemical reaction process, serves the effect of catalysis power-assisted；On the other hand, nano zine oxide can will give up
Hardly degraded organic substance catalytic degradation in water, removes a part of persistent organic pollutants.
The Al of aluminum plate electrodes dissolution3+With OH-In conjunction with formation Al (OH)3Compound.Al(OH)3Just can mix as excellent
Solidifying agent accelerates to be settled into mud after reaction formation alumen ustum precipitation with the hardly degraded organic substance in brown coal upgrading condensed water.
Wherein, the time that in electric flocculation reactor, described brown coal upgrading is condensed with water process is 30-60min, preferably
30min.
Particularly, the process voltage of described electric flocculation reactor is 5-10V, preferably 7-8V.
Especially, acting on the current density in unit electrode plate in described electric flocculation reactor is 5.0-10.0mA/
cm2, preferably 7-8mA/cm2.
Wherein, described electric flocculation reactor adopts aluminium sheet as cathode and anode material.
Particularly, the cathode and anode material of described electric flocculation reactor is coated with nano oxidized spelter coating.
The present invention adopts nano zine oxide as the decorative material of aluminum plate electrodes, the nano zinc oxide material coating that will be obtained
In aluminum plate electrodes surface, drying.
Wherein, by sinking to the brown coal upgrading condensed water having carried out electrochemical oxidation, electro-catalysis and electric flocculation process
Fall is processed, and obtains the clear water eliminating organic pollutant.
Particularly, the time of described settlement treatment is 10-20min, preferably 15min.
Brown coal upgrading condensed water through electrochemical oxidation, point catalysis and electric flocculation reaction treatment, organic pollution therein
By coagulation, then precipitate, by outer row is carried out to the pollutant mud settling down, make the organic dirt in brown coal upgrading condensed water
Dye thing is removed, and obtains the clear water eliminating organic pollutant.
Wherein, by described clear water is carried out with filtration treatment, remove amounts of residual contamination therein, obtain water purification.
Particularly, using activated carbon, filtration treatment is carried out to the described clear water eliminating organic pollutant.
Especially, described activated carbon is preferably brown coal base active carbon.
Particularly, described activated carbon is more preferably the brown coal base active carbon through assigning magnetic.
Especially, the particle diameter of described brown coal base active carbon is 0.2-0.5mm, and aperture is 2-100nm, and specific surface area is
1000-1200m2/g.
Particularly, the component content of described brown coal base active carbon is：Ash：8-12%；Moisture content≤4%.
Especially, the iodine number of described brown coal base active carbon is 900-1100g/g.
In the adsorption process of Active Carbon in Organic, when the aperture (D) of activated carbon is the 6 of adsorption molecule diameter (d)
When about times, there is optimal adsorption in Active Carbon in Organic；Hardly degraded organic substance in brown coal upgrading condensed water is with the hole of particle diameter
Footpath typically in 2-8nm, therefore when processing waste water, the aperture of activated carbon in 10-50nm about be advisable.Therefore, Wo Mentong
Cross nano zinc oxide material brown coal base active carbon to be carried out assign magnetic tune hole, make the aperture of brown coal base active carbon be maintained at several nanometers extremely
Between tens nanometers, thus reach removing to greatest extent to hardly degraded organic substance in brown coal upgrading condensed water.On the other hand, brown
Active carbon from coal, through assigning after magnetic, can be recycled, solve absorbent charcoal material recycles problem to greatest extent.Warp
Absorbent charcoal material behind toning hole, both can play the effect of absorption organic pollution, may also function as the effect of micro-filtration material, greatly
Enhance to brown coal upgrading condense organic pollutants removal efficiency.
Another aspect of the present invention provides a kind of device removing brown coal upgrading condensation organic pollutants, including：
Storage cistern, for storing pending brown coal upgrading condensed water；
Electric flocculation reactor, for carrying out electrochemical oxidation, electro-catalysis and electricity wadding simultaneously to described brown coal upgrading condensed water
Solidifying process, makes the organic pollution in described brown coal upgrading condensed water fully be decomposed, so that described brown coal upgrading condensation
Organic pollution in water fully flocculates；
Mud discharging device, for discharging the brown coal upgrading condensed water processing through described electrochemical oxidation, electro-catalysis and electric flocculation
Produced mud, obtains the clear water eliminating organic pollutant；
Filter, for described clear water is carried out with filtration treatment, removes amounts of residual contamination therein, obtains water purification.
Wherein, the cathode and anode of described electric flocculation reactor is aluminium sheet.
Particularly, the cathode and anode material of described electric flocculation reactor is coated with nano oxidized spelter coating.
Especially, described electric flocculation reactor bottom is additionally provided with mud discharging device, for organic by get off through flocculating setting
Pollutant mud is periodically discharged.
Wherein, described filter is active carbon filter.
Particularly, the sorbing material of described active carbon filter is preferably brown coal base active carbon.
Especially, the sorbing material of described active carbon filter is more preferably the brown coal base active carbon through assigning magnetic.
Particularly, the particle diameter of described brown coal base active carbon is 0.2-0.4mm, and aperture is 2-100nm, and surface area is 1000-
1200m2/g.
Especially, the component content of described brown coal base active carbon is：Ash：8-12%；Moisture content≤4%.
Particularly, the iodine number of described brown coal base active carbon is 900-1100g/g.
Wherein, the described device removing brown coal upgrading condensation organic pollutants also includes being arranged on above filter
Back washing device, for described filter is periodically carried out with backwash process, remove residual organic contaminants thereon, increased
The service life of filter device.
The course of work of assembly of the invention and operation principle are as follows：
Pending brown coal upgrading condensed water enters electric flocculation reactor by storage cistern first, and electric flocculation reactor is using receiving
The Zinc modified aluminium sheet of rice oxidation, as the cathode and anode material of reactor, can carry out electrochemistry oxygen to brown coal upgrading condensed water simultaneously
Change, electro-catalysis and electric flocculation are processed, and can remove the multiple persistent organic pollutants in brown coal upgrading condensed water to greatest extent；
Arrange via mud discharging device is periodically outer through the pollutant mud that flocculation reaction settles down.Supernatant enters filter, filters dress
Put and the brown coal base active carbon behind magnetic tune hole is assigned as absorption filtering material using nano zine oxide, so that the aperture of activated carbon is maintained at
Between several nanometers to tens nanometers, thus reach removing to greatest extent to hardly degraded organic substance in brown coal upgrading condensed water, obtain
To water purification；Filter carries out periodic cleaning by back washing device to activated carbon reactor, and backwash draining is back to storage cistern again
It is circulated process.Finally, water outlet after treatment is to flow back to outside water purification with or be emitted into external environment.
Advantages of the present invention and Advantageous Effects are as follows：
1st, the present invention carries out advanced treating using electric flocculation reactor to brown coal upgrading condensed water, after solving conventional treatment
Go out the problems such as organic pollutants are difficult to be removed, and toxicity is big, to the organic pollutant removal effect in brown coal upgrading condensed water
Good, removal efficiency is high.
2nd, the electric flocculation reactor of the present invention is coated with the aluminium sheet of nano oxidized spelter coating as cathode and anode material using surface
Material, combining a little of electrochemical reaction, nano material catalysis oxidation and electric flocculation reaction can be realized brown coal are carried simultaneously
The electrochemical oxidation of matter condensed water, electro-catalysis and electric flocculation are processed, and can remove having in brown coal upgrading condensed water to greatest extent
Organic pollutants.
3rd, the present invention adopts nano oxidized Zinc modified aluminum plate electrodes, and nano zine oxide is a kind of new high function fine chemistry industry
Inorganic product, has preferable skin effect and bulk effect, and specific surface area is big, is a kind of catalysis material of superior performance, and
Nano zine oxide has preferable photocatalytic activity in itself, and the organic matter in brown coal upgrading condensed water directly can be degraded removal.
4th, the present invention is carried out to the clear water after electric flocculation reactor for treatment from the brown coal base active carbon through assigning magnetic
Filtration treatment, can be adsorbed to greatest extent to the remaining organic matter in clear water, makes water outlet realize safe reuse or outer row.
5th, the brown coal base active carbon in the present invention adjusts hole to process through assigning magnetic, not only can reach and organic pollution is gone
Remove, also can be recycled to greatest extent, solve absorbent charcoal material recycles problem.
Brief description
Fig. 1 is that the present invention removes the structural representation that brown coal upgrading condenses organic pollutants device；
Description of reference numerals：1st, storage cistern；2nd, electric flocculation reactor；3rd, anode；4th, negative electrode；5th, power supply；6th, mud discharging device；
7th, filter；8th, back washing device.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples.
As shown in figure 1, the device that the present invention removes brown coal upgrading condensation organic pollutants includes storage cistern 1, electricity wadding
Solidifying reactor 2, mud discharging device 3 and filter 4.
Storage cistern 1 is used for receiving and preserving pending brown coal upgrading condensed water；Electric flocculation reactor 2 is used for described brown
Coal upgrading condensed water carries out electrochemical oxidation, electro-catalysis and electric flocculation simultaneously and processes, and makes having in described brown coal upgrading condensed water
Organic pollutants are fully decomposed, so that the organic pollution in described brown coal upgrading condensed water fully flocculates；Electric flocculation is anti-
Answer the anode 3 of device and negative electrode 4 to be coated with the aluminium sheet of nano oxidized spelter coating for surface, be connected with power supply 5 by wiring respectively；Electricity
Flocculation reactor 2 bottom is additionally provided with mud discharging device 6, process through described electrochemical oxidation, electro-catalysis and electric flocculation for discharging
Mud produced by brown coal upgrading condensed water, obtain the clear water eliminating organic pollutant；Filter 7 is used for described
Clear water carries out filtration treatment, removes amounts of residual contamination therein, obtains water purification；It is provided with backwash dress above filter 7
Put 8, for regular backwash is carried out to filter.
Pending brown coal upgrading condensed water enters electric flocculation reactor 2 by storage cistern 1 first, and electric flocculation reactor 2 is adopted
With nano oxidized Zinc modified aluminium sheet as the anode 3 of reactor and negative electrode 4, electrification can be carried out to brown coal upgrading condensed water simultaneously
Learn oxidation, electro-catalysis and electric flocculation to process, the organic dirt of multiple difficult degradations in brown coal upgrading condensed water can be removed to greatest extent
Dye thing；Arrange via mud discharging device 6 is periodically outer through the pollutant mud that flocculation reaction settles down.Supernatant enters filter 7,
Filter 7 adopts nano zine oxide to assign the brown coal base active carbon after magnetic adjusts hole as absorption filtering material, makes the hole of activated carbon
Footpath is maintained between several nanometers to tens nanometers, thus reaching to hardly degraded organic substance in brown coal upgrading condensed water to greatest extent
Remove, obtain water purification；Filter carries out periodic cleaning by back washing device 8 to activated carbon reactor, and backwash draining flows back again
It is circulated process to storage cistern.Finally, water outlet after treatment is to flow back to outside water purification with or be emitted into external environment.
In the embodiment of the present invention nano zine oxide used be purchased from Beijing Na Bo material Science and Technology Ltd., technical grade, in vain
Color powder, purity is 99.9%, and particle diameter is 40-60nm, and specific surface area is 50-70m2/g.
In the embodiment of the present invention, brown coal base active carbon used is purchased from Inner Mongol Bao Xile coal industry Co., Ltd, and its particle diameter is
0.2-0.4mm, aperture is 2-100nm, and surface area is 1000-1200m2/ g, ash is 8-12%；Moisture content≤4%, iodine number is
900-1100g/g.
The brown coal upgrading condensed water processing in the embodiment of the present invention takes from the middle trial work of Inner Mongol brown coal upgrading demonstration project
Journey, treating capacity is 10t/d.
Embodiment 1
1st, pending brown coal upgrading condensed water in storage cistern is pumped into electric flocculation reactor, treat in electric flocculation reactor
Liquid level reach apart from its top 50cm when, stop water inlet；
Wherein, the size of electric flocculation reactor is：Length × width × height=600 × 600 × 1200mm；Built-in anode plate and the moon
Each 20 pieces of pole plate, the size of positive plate and minus plate is：Length × width × height=550 × 540 × 400mm, positive plate and minus plate
Alternately place, spacing 1.0cm.
2nd, open electric flocculation reactor, brown coal upgrading condensed water therein processed, wherein working voltage is 10V,
Current density is 7.5mA/cm2, process time is 30min.
3rd, the brown coal upgrading condensed water after electrochemical oxidation, electro-catalysis, electric flocculation and precipitation process is settled
Process, obtain supernatant, the wherein time of settlement treatment is 10min.
4th, supernatant is pumped in filter, the residual contaminants in clear water, activity are removed by brown coal base active carbon
The size of carbon filter is：Internal diameter 800mm, height 1600mm, activated carbon floor height 1000mm, filtrate is the water outlet after processing.
According to GB HJ 77.1-2008《The mensure isotopic dilution high-resolution gas-chromatography-high score of water quality two English class
Distinguish mass spectrography》In method measure 2,3,7,8-TCDD (two English classes) content in water outlet, measurement result is as shown in table 1；
Pyridine (C in water outlet5H5N), hexamethyldisilane (C6H18OSi2), picolinamide (C6H6N2O), two (trimethyl
Silicon substrate) carbimide (C7H18N2Si2), octamethylcy-clotetrasiloxane (C8H24O4Si4), 1,2- double (trimethylsiloxy group) and second
Alkane (C8H22O2Si2) content adopt HPLC/MS-MS, assay method is as follows：
Chromatographic condition：XTerraMS C18 type chromatographic column (2.1mm × 100mm, 3.5 μm, Waters, US)；Flowing
Phase A：Methanol-acetonitrile (1:1, v/v), Mobile phase B:0.3% aqueous formic acid is (containing 0.1% (volume fraction) ammonium formate, pH
2.9)；Flow velocity：0.2mL/min；Condition of gradient elution：0～2min, 10%A；2～12min, 10%A～70%A；12～
16min, 70%A～100%A, keeps 3min；19～19.1min, 100%A～10%A；19.1～33min, 10%A；Sample introduction
Amount:15μL.Mass Spectrometry Conditions：Gas curtain atmospheric pressure is 0.14MPa, and collision atmospheric pressure is 0.02MPa, and ion spray voltage is 5000V,
Temperature is 600 DEG C.Sample-pretreating method:Water sample, after 0.45 μm of membrane filtration, accurately measures 200mL, shakes up, Ran Houyong
Oas isHLB SPE pillar (6mL, 200mg) carries out enrichment and purifies.Before loading, HLB pillar is entered with 5mL methyl alcohol and 5mL water successively
Row activation；During loading, flow control is in 1mL/min；After loading, first clean HLB pillar with 12mL water, then under negative pressure
Drain, finally use 6mL ammonia water-methanol (5；95, v/v) elute.Eluent is dried up with nitrogen at 35 DEG C and is concentrated into below 1mL,
Finally it is settled to 1mL with initial proportion mobile phase, to be measured, measurement result is as shown in table 1.
Water quality situation list before and after brown coal upgrading condensed water is treated in table 1 embodiment 1
Embodiment 2
1st, pending brown coal upgrading condensed water in storage cistern is pumped into electric flocculation reactor, treat in electric flocculation reactor
Liquid level reach apart from its top 50cm when, stop water inlet；
Wherein, the size of electric flocculation reactor is：Length × width × height=600 × 600 × 1200mm；Built-in anode plate and the moon
Each 20 pieces of pole plate, the size of positive plate and minus plate is：Length × width × height=550 × 540 × 400mm, positive plate and minus plate
Alternately place, spacing 1.0cm.
2nd, open electric flocculation reactor, brown coal upgrading condensed water therein processed, wherein working voltage is 10V,
Current density is 8mA/cm2, process time is 40min.
3rd, the brown coal upgrading condensed water after electrochemical oxidation, electro-catalysis, electric flocculation and precipitation process is settled
Process, obtain supernatant, the wherein time of settlement treatment is 10min.
4th, supernatant is pumped in filter, the residual contaminants in clear water, activity are removed by brown coal base active carbon
The size of carbon filter is：Internal diameter 800mm, height 1600mm, activated carbon floor height 1000mm, filtrate is the water outlet after processing.
Method according to embodiment 1 is measured to the hardly degraded organic substance content in water outlet, measurement result such as table 2 institute
State.
Water quality situation list before and after brown coal upgrading condensed water is treated in table 2 embodiment 2
Embodiment 3
1st, pending brown coal upgrading condensed water in storage cistern is pumped into electric flocculation reactor, treat in electric flocculation reactor
Liquid level reach apart from its top 50cm when, stop water inlet；
Wherein, the size of electric flocculation reactor is：Length × width × height=600 × 600 × 1200mm；Built-in anode plate and the moon
Each 20 pieces of pole plate, the size of positive plate and minus plate is：Length × width × height=550 × 540 × 400mm, positive plate and minus plate
Alternately place, spacing 1.0cm.
2nd, open electric flocculation reactor, brown coal upgrading condensed water therein processed, wherein working voltage is 10V,
Current density is 7mA/cm2, process time is 50min.
3rd, the brown coal upgrading condensed water after electrochemical oxidation, electro-catalysis, electric flocculation and precipitation process is settled
Process, obtain supernatant, the wherein time of settlement treatment is 10min.
4th, supernatant is pumped in filter, the residual contaminants in clear water, activity are removed by brown coal base active carbon
The size of carbon filter is：Internal diameter 800mm, height 1600mm, activated carbon floor height 1000mm, filtrate is the water outlet after processing.
Method according to embodiment 1 is measured to the hardly degraded organic substance content in water outlet, measurement result such as table 3 institute
State.
Water quality situation list before and after brown coal upgrading condensed water is treated in table 3 embodiment 3
Embodiment 4
1st, pending brown coal upgrading condensed water in storage cistern is pumped into electric flocculation reactor, treat in electric flocculation reactor
Liquid level reach apart from its top 50cm when, stop water inlet；
Wherein, the size of electric flocculation reactor is：Length × width × height=600 × 600 × 1200mm；Built-in anode plate and the moon
Each 20 pieces of pole plate, the size of positive plate and minus plate is：Length × width × height=550 × 540 × 400mm, positive plate and minus plate
Alternately place, spacing 1.0cm.
2nd, open electric flocculation reactor, brown coal upgrading condensed water therein processed, wherein working voltage is 10V,
Current density is 5mA/cm2, process time is 60min.
3rd, the brown coal upgrading condensed water after electrochemical oxidation, electro-catalysis, electric flocculation and precipitation process is settled
Process, obtain supernatant, the wherein time of settlement treatment is 10min.
4th, supernatant is pumped in filter, the residual contaminants in clear water, activity are removed by brown coal base active carbon
The size of carbon filter is：Internal diameter 800mm, height 1600mm, activated carbon floor height 1000mm, filtrate is the water outlet after processing.
Method according to embodiment 1 is measured to the hardly degraded organic substance content in water outlet, measurement result such as table 4 institute
State.
Water quality situation list before and after brown coal upgrading condensed water is treated in table 4 embodiment 4
Embodiment 5
1st, pending brown coal upgrading condensed water in storage cistern is pumped into electric flocculation reactor, treat in electric flocculation reactor
Liquid level reach apart from its top 50cm when, stop water inlet；
Wherein, the size of electric flocculation reactor is：Length × width × height=600 × 600 × 1200mm；Built-in anode plate and the moon
Each 20 pieces of pole plate, the size of positive plate and minus plate is：Length × width × height=550 × 540 × 400mm, positive plate and minus plate
Alternately place, spacing 1.0cm.
2nd, open electric flocculation reactor, brown coal upgrading condensed water therein is processed, wherein working voltage is 5V, electricity
Current density is 10mA/cm2, process time is 30min.
3rd, the brown coal upgrading condensed water after electrochemical oxidation, electro-catalysis, electric flocculation and precipitation process is settled
Process, obtain supernatant, the wherein time of settlement treatment is 10min.
4th, supernatant is pumped in filter, the residual contaminants in clear water, activity are removed by brown coal base active carbon
The size of carbon filter is：Internal diameter 800mm, height 1600mm, activated carbon floor height 1000mm, filtrate is the water outlet after processing.
Method according to embodiment 1 is measured to the hardly degraded organic substance content in water outlet, measurement result such as table 5 institute
State.
Water quality situation list before and after brown coal upgrading condensed water is treated in table 5 embodiment 5
From the data of table 1-5, the difficult degradation in brown coal upgrading condensed water is processed using methods and apparatus of the present invention
Organic matter, the hardly degraded organic substance species of removal is many, processed by the invention after, hardly degraded organic substance in brown coal upgrading condensed water
Obtain most removal, 82.6-92.4% reached to the clearance of two English, 30.6-44.6% has been reached to the clearance of pyridine,
58.8-63.8% is reached to the clearance of hexamethyldisilane, 40.8-66.5% is reached to the clearance of picolinamide, to two (front threes
Base silicon substrate) clearance of carbimide reaches 89.8-100%, reaches 82.1-100% to the clearance of octamethylcy-clotetrasiloxane, right
The clearance of 1,2- double (trimethylsiloxy group) ethane reaches 11.5-27.2%, to trimethyl silicane alkanol three silicomethane ethoxy-ethanol
The clearance of acid esters reaches 29.4-57.7%, reaches 79.3-100%, treatment effect to the clearance of 3- diphenyl phosphine-methyl propionate
Good, removal efficiency is high.
Although above-mentioned elaborate to the present invention, the invention is not restricted to this, those skilled in the art can
Modified with the principle according to the present invention, therefore, the various modifications that all principles according to the present invention are carried out all should be understood to
Fall into protection scope of the present invention.
Claims (7)
1. a kind of method removing brown coal upgrading condensation organic pollutants is it is characterised in that comprise the following steps：
Pending brown coal upgrading condensed water is incorporated in electric flocculation reactor；
Electric flocculation reactor is carried out at electrochemical oxidation, electro-catalysis and electric flocculation to described brown coal upgrading condensed water simultaneously
Reason, makes the organic pollution in described brown coal upgrading condensed water fully be decomposed, thus in described brown coal upgrading condensed water
Organic pollution is fully flocculated；
By settlement treatment is carried out to the brown coal upgrading condensed water having carried out electrochemical oxidation, electro-catalysis and electric flocculation process, obtain
To eliminating the supernatant water outlet after organic pollutant；
By described supernatant water outlet is carried out with further filtration treatment, remove amounts of residual contamination therein, obtain water purification；
Wherein, the cathode and anode material of described electric flocculation reactor is coated with nano oxidized spelter coating；
Wherein, by being energized to the nano oxidized zinc layers being coated on cathode and anode material, to described brown coal upgrading condensed water
Carry out electro-catalysis process, so that as the catalyst of electrochemical reaction, and hardly degraded organic substance in brown coal upgrading condensed water is entered
Row catalytic degradation；
Wherein, described brown coal upgrading refers to, removes moisture therein to brown coal mechanical presses, hot pressing, pyrolysis.
2. the method for claim 1 is it is characterised in that in described electric flocculation reactor, the aluminium sheet pair using the power on
Carry out electric flocculation process including the described brown coal upgrading condensed water having carried out electrochemical oxidation and electro-catalysis process.
3. method as claimed in claim 2 is it is characterised in that described electric flocculation reactor adopts aluminium sheet as cathode and anode material
Material.
4. the method for claim 1 is it is characterised in that eliminated after organic pollutant to described using activated carbon
Supernatant water outlet carries out filtration treatment.
5. a kind of device removing brown coal upgrading condensation organic pollutants is it is characterised in that include：
Storage cistern, for storing pending brown coal upgrading condensed water；
Electric flocculation reactor, for carrying out at electrochemical oxidation, electro-catalysis and electric flocculation to described brown coal upgrading condensed water simultaneously
Reason, makes the organic pollution in described brown coal upgrading condensed water fully be decomposed, so that in described brown coal upgrading condensed water
Organic pollution fully flocculate；
Mud discharging device, the brown coal upgrading condensed water for discharging through described electrochemical oxidation, electro-catalysis and electric flocculation are processed is produced
Raw mud；
Filter, for carrying out further filtration treatment to the supernatant water outlet after electric flocculation reactor for treatment, goes
Except amounts of residual contamination therein, obtain water purification；
Wherein, the cathode and anode material of described electric flocculation reactor is coated with nano oxidized spelter coating；
Wherein, by being energized to the nano oxidized zinc layers being coated on cathode and anode material, to described brown coal upgrading condensed water
Carry out electro-catalysis process, so that as the catalyst of electrochemical reaction, and hardly degraded organic substance in brown coal upgrading condensed water is entered
Row catalytic degradation；
Wherein, described brown coal upgrading refers to, removes moisture therein to brown coal mechanical presses, hot pressing, pyrolysis.
6. device as claimed in claim 5 is it is characterised in that the cathode and anode of described electric flocculation reactor is aluminium sheet.
7. device as claimed in claim 5 is it is characterised in that described filter is active carbon filter.
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