CN106630106A - Method for removing total organic nitrogen in cold rolling thin oil electro adsorption concentrated water and apparatus thereof - Google Patents
Method for removing total organic nitrogen in cold rolling thin oil electro adsorption concentrated water and apparatus thereof Download PDFInfo
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- CN106630106A CN106630106A CN201510718659.5A CN201510718659A CN106630106A CN 106630106 A CN106630106 A CN 106630106A CN 201510718659 A CN201510718659 A CN 201510718659A CN 106630106 A CN106630106 A CN 106630106A
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- 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
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- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
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- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The invention relates to a method for removing total organic nitrogen in cold rolling thin oil electro adsorption concentrated water. According to the invention, a water-air balance distributor and a support plate are arranged in an efficient catalytic reaction tower in order, an iolite-supported manganese/ruthenium complex catalyst is arranged on the support plate, a filling material pressure plate is placed on an upper layer of the catalyst, a supported dual complexation molecular sieve catalyst is placed between the support and the filling material pressure plate, the cold rolling thin oil electro adsorption concentrated water and ozone respectively passes from the bottom of the efficient catalytic reaction tower to the efficient catalytic reaction tower through a pipeline, and are uniformly distributed through the balance distributor, the thin oil electro adsorption concentrated water and ozone water vapor uniformly distributed by the balance distributor flow out from the support plate, and are discharged from an air exhaust opening of the efficient catalytic reaction tower. Through the above technical flow, the water quality of an effluent of the cold rolling thin oil electro adsorption concentrated water is 7800-10100 us/cm, and the total organic nitrogen is 3-7 mg/L. According to the technical scheme, environment pollution is reduced, and the increasingly strict environment protection regulations can be responded actively.
Description
Technical field
The invention belongs to water-treatment technology field, and in particular to one kind is efficiently removed in cold rolling thin oil Electro Sorb concentrated water
The technique and method of total organic nitrogen.
Background technology
Used as the basic industry of China, steel and iron industry is fast-developing since the reform and opening-up, locates always in recent years
In the high speed development stage, steel annual production amplification is 15%～22%.But steel and iron industry is high energy consumption, a Gao Zi
Source, the industry of high pollution, its water resources consumption is huge, accounts for the 14% of national industrial water consumption.
Iron and steel enterprise can produce substantial amounts of thin oil waste water in rolling process.Mainly have during belt steel rolling and cool down
The thin oil waste water that the emulsified oil-containing waste water and cooling strip produced with lubrication is produced before annealing in degreasing, thin oil gives up
A large amount of nitrogenous heterocyclic organic matters in water.Total organic nitrogen refers to nitrogen contained in organic compound, including
Nitrogen in the itrogenous organic substances such as nitro, nitroso, amino, amide groups, the amidino groups of all aliphatic hydrocarbons and aromatic hydrocarbon.
Electro Sorb technology is the phenomenon using charged electrode surface adsorption water intermediate ion and charged particle, is made molten in water
Solution salt and other charge specieses are concentrated in the surface enrichment of electrode and realize a kind of new water process of water purification
Technology.The water purification of the generation of Electro Sorb can be applied and be back to production, and the concentrated water for producing needs to carry out advanced treating.
The handling process of cold rolling thin oil waste water is：Oil removal by air bubbling+aerobic biochemical reaction tank+filtration+Electro Sorb.Electricity is inhaled
Attached producing water water quality can meet the requirement of iron and steel applicable industry water, can be back to preceding working procedure, but Electro Sorb
Total organic nitrogen is seriously polluted in concentrated water.
The content of the invention
The purpose of the present invention is exactly the water quality and quantity situation according to cold rolling thin oil Electro Sorb concentrated water, and exploitation removes concentrated water
The technical scheme of middle total organic nitrogen, with friendly process and energy-saving and emission-reduction as main task, reduces environment dye, actively
The increasingly strict legislations of environmental protection of reply.
The invention provides a kind of method and technology scheme for removing total organic nitrogen in cold rolling thin oil Electro Sorb concentrated water, adopts
With the present invention processing system up to standard, run it is simple to operate, production processing cost it is relatively low, be environmentally friendly
Steel wastewater environmental protection handling process.
The technical scheme of the method for total organic nitrogen is as follows in a kind of cold rolling thin oil Electro Sorb concentrated water of removal of the present invention：
A kind of method for removing total organic nitrogen in cold rolling thin oil Electro Sorb concentrated water, methods described is anti-using efficient catalytic
Answer tower, it is characterised in that be disposed with aqueous vapor balanced distribution device in the efficient catalytic reaction tower, gripper shoe,
Catalyst is provided with gripper shoe, hold-down grid is placed on the upper strata of catalyst,
The catalyst arranged between gripper shoe and hold-down grid is cordierite Supported Manganese/ruthenium complex catalyst,
The cold rolling thin oil Electro Sorb concentrated water and ozone react tower bottom and enter high by pipeline from efficient catalytic respectively
Effect catalytic tower, and by the uniform cloth of balanced distribution device,
Flowed out from gripper shoe by the thin oil Electro Sorb concentrated water of the uniform cloth of balanced distribution device, then from delivery port discharge,
By the ozone aqueous vapor gas of the uniform cloth of balanced distribution device from after gripper shoe outflow, from the row of efficient catalytic reaction tower
Gas port is discharged,
Through above-mentioned flow process, the effluent quality of cold rolling thin oil Electro Sorb concentrated water is 7800～10100us/cm, always
Organic nitrogen is 3～7mg/L.
It is described cold rolling according to a kind of method for removing total organic nitrogen in cold rolling thin oil Electro Sorb concentrated water of the present invention
The dense electrical conductivity of water of thin oil Electro Sorb is 7800～10100us/cm, 23～47mg/L of total organic nitrogen.
According to a kind of method for removing total organic nitrogen in cold rolling thin oil Electro Sorb concentrated water of the present invention, its feature exists
In the ozone concentration in efficient catalytic reaction tower is 300～500g/L, and the cold rolling thin oil Electro Sorb concentrated water exists
The time of staying in efficient catalytic reaction tower is 26～47min.
According to a kind of method for removing total organic nitrogen in cold rolling thin oil Electro Sorb concentrated water of the present invention, its feature exists
In the percent opening that the gripper shoe of cordierite Supported Manganese/ruthenium complex catalyst is placed above is 30～35%, and aperture is
6～8mm.
According to a kind of method for removing total organic nitrogen in cold rolling thin oil Electro Sorb concentrated water of the present invention, its feature exists
In the percent opening of the hold-down grid placed on cordierite Supported Manganese/ruthenium complex catalyst is 50%, and aperture is 8mm.
According to a kind of method for removing total organic nitrogen in cold rolling thin oil Electro Sorb concentrated water of the present invention, its feature exists
In the cordierite Supported Manganese/ruthenium complex catalyst placed between gripper shoe and hold-down grid accounts for whole efficient catalytic
The 65～85% of reaction tower volume.
According to a kind of method for removing total organic nitrogen in cold rolling thin oil Electro Sorb concentrated water of the present invention, its feature exists
In the preparation method of cordierite Supported Manganese/ruthenium complex catalyst is as follows：
1) screening of carrier：The main component of the cordierite is：SiO2：46～57% (quality), Al2O3：
35～45% (quality)；MgO：9～15%；Fe2O3(quality)：0.1～1.5% (quality)；TiO2：0.1～
1.7% (quality)；Na2O+K2O：0.1～0.5% (quality)；
2) cleaning of carrier：Cordierite carrier is placed on 40～60min of dipping in 15～25% salpeter solution, then
Solution is washed till in neutrality, 2-3 hours are then dried in 110-120 DEG C of air dry oven, after cooling with pure water
It is standby；
3) preparation of mixed solution：By the manganese nitrate solution of 0.8～1.5mol/L, 0.2～0.7mol/L tri-
Chlorination ruthenium solution, the positive silicic acid fat ethanol solution of 0.01-0.005mol/L are according to volume ratio 18-20：14-15：1
Mixing, it is 1.5 to adjust PH, is configured to mixed solution；
4) carrier immersion：Cordierite carrier presses solid-to-liquid ratio 1：5-7 is immersed in 120～360 in the mixed solution for preparing
Min, then takes out cordierite carrier, drying；
5) high temperature sintering：Obtain cordierite Supported Manganese/ruthenium complex catalyst.
According to a kind of processing method for removing total organic nitrogen in cold rolling thin oil Electro Sorb concentrated water of the present invention, preferably
,
In step 1) screening of carrier：
The cordierite linear expansion coefficient is 10-6/ DEG C of 2.1～2.8 (20～800 DEG C)；Water absorption rate is 21～29%.
According to a kind of processing method for removing total organic nitrogen in cold rolling thin oil Electro Sorb concentrated water of the present invention, preferably
,
In step 3) preparation of mixed solution：
Manganese nitrate solution, solution of ruthenium trichloride, positive silicic acid fat ethanol solution is according to volume ratio 20：15：1 mixing,
Ultrasonic oscillation mixes 10～20min, and it is 1.5 that nitric acid is subsequently added dropwise to PH, is finally configured to mixed solution.
According to a kind of processing method for removing total organic nitrogen in cold rolling thin oil Electro Sorb concentrated water of the present invention, preferably
, in step 5) and high temperature sintering：
890 DEG C will be warming up to 4 DEG C/min in cordierite carrier heating furnace, calcining at constant temperature after 4～7 hours from
So cooling, obtains cordierite Supported Manganese/ruthenium complex catalyst.
A kind of device for removing total organic nitrogen in cold rolling thin oil Electro Sorb concentrated water, described device includes that efficient catalytic is anti-
Answer tower, it is characterised in that aqueous vapor balanced distribution device, gripper shoe are disposed with the efficient catalytic reaction tower
And hold-down grid, support type two-spot complex molecule sieve catalyst is placed between gripper shoe and hold-down grid,
The cold rolling thin oil Electro Sorb concentrated water and ozone react tower bottom and enter high by pipeline from efficient catalytic respectively
Effect catalytic tower, and be uniformly distributed by balanced distribution device,
Flowed out from gripper shoe by the equally distributed thin oil Electro Sorb concentrated water of balanced distribution device, then from delivery port discharge,
By the equally distributed ozone aqueous vapor gas of balanced distribution device from after gripper shoe outflow, from efficient catalytic reaction tower
Exhaust outlet is discharged.
According to a kind of device for removing total organic nitrogen in cold rolling thin oil Electro Sorb concentrated water of the present invention, its feature exists
In the percent opening that the gripper shoe of support type two-spot complex molecule sieve catalyst is placed above is 30～35%, aperture
For 6～8mm.
According to a kind of device for removing total organic nitrogen in cold rolling thin oil Electro Sorb concentrated water of the present invention, its feature exists
In the percent opening of the hold-down grid placed on support type two-spot complex molecule sieve catalyst is 50%, and aperture is 8mm.
The present invention proposes cold rolling thin oil Electro Sorb concentrated water advanced treating scheme, and this technical scheme efficiently solves dense
Total organic nitrogen pollutes the problem of environment in water.Therefore the invention belongs to iron and steel environmental protection production technology, with good
Social benefit well and environmental benefit.
Description of the drawings
Fig. 1 is cold rolling thin oil Wastewater by Electric adsorption treatment process flow process (technological process that concentrated water is produced) schematic diagram.
Fig. 2 is total organic nitrogen schematic device in the cold rolling thin oil Electro Sorb concentrated water of removal.
In figure, efficient catalytic reaction tower 1, ozone inlet 2, water inlet 3, aqueous vapor balanced distribution device 4,
Fagging 5, cordierite Supported Manganese/ruthenium complex catalyst catalyst 6, catalyst pressing plate 7, delivery port 8, gas outlet
9。
Specific embodiment
For a better understanding of the present invention patent, with reference to embodiment the content of patent of the present invention is further elucidated,
But the content of patent of the present invention is not limited solely to the following examples.
The present invention is elaborated with reference to the accompanying drawings and examples.
Embodiment 1：
A kind of technical scheme for removing total organic nitrogen in cold rolling thin oil Electro Sorb concentrated water.
The handling process of cold rolling thin oil waste water is：Oil removal by air bubbling+aerobic biochemical reaction tank+filtration+Electro Sorb.Electricity is inhaled
Attached producing water water quality can meet the requirement of iron and steel applicable industry water, can be back to preceding working procedure, but Electro Sorb
Total organic nitrogen is seriously polluted in concentrated water.
Total organic nitrogen process system in the cold rolling thin oil Electro Sorb concentrated water of one kind removal, including efficient catalytic reaction tower,
Ozone inlet, water inlet, aqueous vapor balanced distribution device, gripper shoe, cordierite Supported Manganese/ruthenium complex catalyst,
Catalyst pressing plate, delivery port, gas outlet.
The dense electrical conductivity of water of the cold rolling thin oil Electro Sorb is 8200us/cm, total organic nitrogen 46mg/L.
The cold rolling thin oil Electro Sorb concentrated water enters reaction tower by pipeline from efficient catalytic reaction tower water inlet, smelly
Oxygen reacts tower bottom and enters by pipeline from efficient catalytic, and concentrated water and ozone aqueous vapor pass through the uniform cloth of balanced distribution device
Current and air-flow.Ozone concentration is 500g/L, and the time of staying of the concentrated water in efficient catalytic reaction tower is 33min.
Support and place above flaggy cordierite Supported Manganese/ruthenium complex catalyst, the percent opening of gripper shoe is 31%,
Aperture is 7mm.Hold-down grid is placed on the upper strata of catalyst, and the percent opening of hold-down grid is 50%, and aperture is 8mm.
Support type two-spot complex molecule sieve catalyst is placed between gripper shoe and hold-down grid, catalyst accounts for whole efficient
The 75% of the volume of catalytic tower.
The characteristics of cordierite Supported Manganese/ruthenium complex catalyst catalyst aims cold rolling thin oil Electro Sorb concentrated water, exploitation is high
Effect removes the preparation method of the catalyst of total organic nitrogen.Cordierite is selected as catalyst because cordierite chemistry is steady
It is qualitative good, there is no solid phase reaction with catalyst coat or active component, while and have enough mechanical strengths,
Impact resistance meets.
The preparation of catalyst：1) screening of carrier：The main component (mass percent) of the cordierite is：
SiO2：51%, Al2O3：37%；MgO：10%；Fe2O3：1.1%；TiO2：0.8%；Na2O+K2O：0.1%.
The cordierite linear expansion coefficient 2.3 (20～800 DEG C) 10-6/℃；Water absorption rate is 25%.2) cleaning of carrier：
Cordierite carrier is placed on and 55min is impregnated in 21% salpeter solution, then it is in neutrality to be washed till solution with pure water, so
It is dried 2 hours in 120 DEG C of air dry ovens afterwards, it is standby after cooling.3) preparation of mixed liquor：By 1.1mol/L
Manganese nitrate solution, 0.4mol/L solution of ruthenium trichloride, the positive silicic acid fat ethanol solution of 0.01mol/L according to body
Product compares 20：15：1 mixing, ultrasonic oscillation mixing 13min, it is 1.5 that nitric acid is subsequently added dropwise to PH, finally
It is configured to mixed solution.4) carrier immersion：Cordierite carrier presses solid-to-liquid ratio 1：6 are immersed in the mixing for preparing
320min in solution, then takes out cordierite carrier, dries under infrared lamp.4) high temperature sintering：By violet
890 DEG C are warming up in green stone thermal medium heater with 4 DEG C/min, calcining at constant temperature 5 hours, then natural cooling,
Prepare cordierite Supported Manganese/ruthenium complex catalyst.Cordierite Supported Manganese/ruthenium complex catalyst is in waste water by ozone
In catalytic oxidation process, ozone is converted into free radical, free radical has extremely strong oxidisability, Electro Sorb can be made dense
Carbon-to-nitrogen double bon, the key open loop of carbon nitrogen three in water in total organic nitrogen are oxidized to small molecule, inhale so as to reduce thin oil electricity
The content of total organic nitrogen in attached concentrated water.
Thin oil Electro Sorb concentrated water flows out from gripper shoe, then from delivery port discharge, gas is from efficient catalytic reaction tower
Exhaust outlet is discharged.
Through whole technological process, the effluent quality 8250us/cm of cold rolling thin oil Electro Sorb concentrated water, total organic nitrogen
5mg/L。
Embodiment 2
A kind of technical scheme for removing total organic nitrogen in cold rolling thin oil Electro Sorb concentrated water.
The handling process of cold rolling thin oil waste water is：Oil removal by air bubbling+aerobic biochemical reaction tank+filtration+Electro Sorb.Electricity is inhaled
Attached producing water water quality can meet the requirement of iron and steel applicable industry water, can be back to preceding working procedure, but Electro Sorb
Total organic nitrogen is seriously polluted in concentrated water.
One kind removes total organic nitrogen device in cold rolling thin oil Electro Sorb concentrated water, including efficient catalytic reaction tower, ozone
Air inlet, water inlet, aqueous vapor balanced distribution device, gripper shoe, cordierite Supported Manganese/ruthenium complex catalyst, catalysis
Agent pressing plate, delivery port, gas outlet.
The dense electrical conductivity of water of the cold rolling thin oil Electro Sorb is 8200us/cm, total organic nitrogen 46mg/L.
The cold rolling thin oil Electro Sorb concentrated water enters reaction tower by pipeline from efficient catalytic reaction tower water inlet, smelly
Oxygen reacts tower bottom and enters by pipeline from efficient catalytic, and concentrated water and ozone aqueous vapor pass through the uniform cloth of balanced distribution device
Current and air-flow.Ozone concentration is 500g/L, and the time of staying of the concentrated water in efficient catalytic reaction tower is 33min.
Support and place above flaggy cordierite Supported Manganese/ruthenium complex catalyst, the percent opening of gripper shoe is 31%,
Aperture is 7mm.Hold-down grid is placed on the upper strata of catalyst, and the percent opening of hold-down grid is 50%, and aperture is 8mm.
Support type two-spot complex molecule sieve catalyst is placed between gripper shoe and hold-down grid, catalyst accounts for whole efficient
The 75% of the volume of catalytic tower.
The characteristics of cordierite Supported Manganese/ruthenium complex catalyst catalyst aims cold rolling thin oil Electro Sorb concentrated water, exploitation is high
Effect removes the preparation method of the catalyst of total organic nitrogen.Cordierite is selected as catalyst because cordierite chemistry is steady
It is qualitative good, there is no solid phase reaction with catalyst coat or active component, while and have enough mechanical strengths,
Impact resistance meets.
The preparation of catalyst：1) screening of carrier：The main component (mass percent) of the cordierite is：
SiO2：51%, Al2O3：37%；MgO：10%；Fe2O3：1.1%；TiO2：0.8%；Na2O+K2O：0.1%.
The cordierite linear expansion coefficient 2.3 (20～800 DEG C) 10-6/℃；Water absorption rate is 25%.2) cleaning of carrier：
Cordierite carrier is placed on and 55min is impregnated in 21% salpeter solution, then it is in neutrality to be washed till solution with pure water, so
It is dried 2 hours in 120 DEG C of air dry ovens afterwards, it is standby after cooling.3) preparation of mixed liquor：By 1.1mol/L
Manganese nitrate solution, 0.4mol/L solution of ruthenium trichloride, the positive silicic acid fat ethanol solution of 0.01mol/L according to body
Product compares 20：15：1 mixing, ultrasonic oscillation mixing 13min, it is 1.5 that nitric acid is subsequently added dropwise to PH, finally
It is configured to mixed solution.4) carrier immersion：Cordierite carrier presses solid-to-liquid ratio 1：6 are immersed in the mixing for preparing
320min in solution, then takes out cordierite carrier, dries under infrared lamp.4) high temperature sintering：By violet
890 DEG C are warming up in green stone thermal medium heater with 4 DEG C/min, calcining at constant temperature 5 hours, then natural cooling,
Prepare cordierite Supported Manganese/ruthenium complex catalyst.Cordierite Supported Manganese/ruthenium complex catalyst is in waste water by ozone
In catalytic oxidation process, ozone is converted into free radical, free radical has extremely strong oxidisability, Electro Sorb can be made dense
Carbon-to-nitrogen double bon, the key open loop of carbon nitrogen three in water in total organic nitrogen are oxidized to small molecule, inhale so as to reduce thin oil electricity
The content of total organic nitrogen in attached concentrated water.
Thin oil Electro Sorb concentrated water flows out from gripper shoe, then from delivery port discharge, gas is from efficient catalytic reaction tower
Exhaust outlet is discharged.
Through whole technological process, the effluent quality 8250us/cm of cold rolling thin oil Electro Sorb concentrated water, total organic nitrogen
5mg/L。
In sum, the processing system that leveling precision source of the present invention reduces discharging realizes reaching for leveling precision waste water
Mark discharge, present invention process one-time investment is low；Liquid waste processing effect stability；Production run low cost；Automatically
Change degree is high, simple to operate.The present invention has fully demonstrated the effect of energy-saving and emission-reduction, is environmentally friendly green
Process for producing steel and iron.
Certainly, those skilled in the art in the art are it should be appreciated that above-described embodiment is intended merely to explanation
The present invention, rather than as limitation of the invention, as long as in the spirit of the present invention, to above-mentioned reality
Applying the conversion of example, deformation all will fall within the scope of the claims.
Claims (9)
1. a kind of method for removing total organic nitrogen in cold rolling thin oil Electro Sorb concentrated water, methods described uses efficient catalytic
Reaction tower, it is characterised in that aqueous vapor balanced distribution device is disposed with the efficient catalytic reaction tower, supports
Plate, is provided with catalyst in gripper shoe, hold-down grid is placed on the upper strata of catalyst,
The catalyst arranged between gripper shoe and hold-down grid is cordierite Supported Manganese/ruthenium complex catalyst,
The cold rolling thin oil Electro Sorb concentrated water and ozone react tower bottom and enter high by pipeline from efficient catalytic respectively
Effect catalytic tower, and by the uniform cloth of balanced distribution device,
Flowed out from gripper shoe by the thin oil Electro Sorb concentrated water of the uniform cloth of balanced distribution device, then from delivery port discharge,
By the ozone aqueous vapor gas of the uniform cloth of balanced distribution device from after gripper shoe outflow, from the row of efficient catalytic reaction tower
Gas port is discharged,
Through above-mentioned flow process, the effluent quality of cold rolling thin oil Electro Sorb concentrated water is 7800～10100us/cm, always
Organic nitrogen is 3～7mg/L.
2. a kind of as claimed in claim 1 method for removing total organic nitrogen in cold rolling thin oil Electro Sorb concentrated water, it is special
Levy and be, the ozone concentration in efficient catalytic reaction tower is 300～500g/L, the cold rolling thin oil Electro Sorb is dense
The time of staying of the water in efficient catalytic reaction tower is 26～47min.
3. a kind of as claimed in claim 1 method for removing total organic nitrogen in cold rolling thin oil Electro Sorb concentrated water, it is special
Levy and be, the percent opening that the gripper shoe of cordierite Supported Manganese/ruthenium complex catalyst is placed above is 30～35%, hole
Footpath is 6～8mm.
4. a kind of as claimed in claim 1 method for removing total organic nitrogen in cold rolling thin oil Electro Sorb concentrated water, it is special
Levy and be, the percent opening of the hold-down grid placed on cordierite Supported Manganese/ruthenium complex catalyst is 50%, and aperture is
8mm。
5. a kind of as claimed in claim 1 method for removing total organic nitrogen in cold rolling thin oil Electro Sorb concentrated water, it is special
Levy and be, the cordierite Supported Manganese/ruthenium complex catalyst placed between gripper shoe and hold-down grid accounts for whole efficient
The 65～85% of catalytic tower volume.
6. a kind of as claimed in claim 1 method for removing total organic nitrogen in cold rolling thin oil Electro Sorb concentrated water, it is special
Levy and be, the preparation method of cordierite Supported Manganese/ruthenium complex catalyst is as follows：
1) screening of carrier：The main component of the cordierite is：SiO2：46～57% (quality), Al2O3：
35～45% (quality)；MgO：9～15%；Fe2O3(quality)：0.1～1.5% (quality)；TiO2：0.1～
1.7% (quality)；Na2O+K2O：0.1～0.5% (quality)；
2) cleaning of carrier：Cordierite carrier is placed on 40～60min of dipping in 15～25% salpeter solution, then
Solution is washed till in neutrality, 2-3 hours are then dried in 110-120 DEG C of air dry oven, after cooling with pure water
It is standby；
3) preparation of mixed solution：By the manganese nitrate solution of 0.8～1.5mol/L, 0.2～0.7mol/L tri-
Chlorination ruthenium solution, the positive silicic acid fat ethanol solution of 0.01-0.005mol/L are according to volume ratio 18-20：14-15：1
Mixing, it is 1.5 to adjust PH, is configured to mixed solution；
4) carrier immersion：Cordierite carrier presses solid-to-liquid ratio 1：5-7 is immersed in 120～360 in the mixed solution for preparing
Min, then takes out cordierite carrier, drying；
5) high temperature sintering：Obtain cordierite Supported Manganese/ruthenium complex catalyst.
7. a kind of device for removing total organic nitrogen in cold rolling thin oil Electro Sorb concentrated water, described device includes efficient catalytic
Reaction tower, it is characterised in that aqueous vapor balanced distribution device is disposed with the efficient catalytic reaction tower, supports
Plate and hold-down grid, place support type two-spot complex molecule sieve catalyst between gripper shoe and hold-down grid,
The cold rolling thin oil Electro Sorb concentrated water and ozone react tower bottom and enter high by pipeline from efficient catalytic respectively
Effect catalytic tower, and be uniformly distributed by balanced distribution device,
Flowed out from gripper shoe by the equally distributed thin oil Electro Sorb concentrated water of balanced distribution device, then from delivery port discharge,
By the equally distributed ozone aqueous vapor gas of balanced distribution device from after gripper shoe outflow, from efficient catalytic reaction tower
Exhaust outlet is discharged.
8. as claimed in claim 7 a kind of device for removing total organic nitrogen in cold rolling thin oil Electro Sorb concentrated water, it is special
Levy and be, the percent opening that the gripper shoe of support type two-spot complex molecule sieve catalyst is placed above is 30～35%,
Aperture is 6～8mm.
9. as claimed in claim 7 a kind of device for removing total organic nitrogen in cold rolling thin oil Electro Sorb concentrated water, it is special
Levy and be, the percent opening of the hold-down grid placed on support type two-spot complex molecule sieve catalyst is 50%, aperture
For 8mm.
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