CN106430523A - Deep ozone treatment device and treatment method for organic wastewater biochemical effluent - Google Patents
Deep ozone treatment device and treatment method for organic wastewater biochemical effluent Download PDFInfo
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- CN106430523A CN106430523A CN201610977036.4A CN201610977036A CN106430523A CN 106430523 A CN106430523 A CN 106430523A CN 201610977036 A CN201610977036 A CN 201610977036A CN 106430523 A CN106430523 A CN 106430523A
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- oxidizing chamber
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- organic wastewater
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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
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/78—Details relating to ozone treatment devices
-
- 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
- C02F2201/78—Details relating to ozone treatment devices
- C02F2201/782—Ozone generators
Abstract
The invention provides a deep ozone treatment device and treatment method for organic wastewater biochemical effluent. The deep ozone treatment device for the organic wastewater biochemical effluent is characterized in that a closed ozone oxidizer is included, the top of the ozone oxidizer is connected with a safety valve through a tail gas collection pipeline, an outlet connecting pipeline of the safety valve is connected with an ejector, and the ejector is connected with a water inlet pipeline of the ozone oxidizer. The treatment device is simple in structure and easy to operate, the ozone utilization rate can reach 90% or above by keeping a certain pressure in the ozone oxidizer through a synergistic effect of compound filler, circulating reflux of wastewater and collection and reutilization of ozone, and meanwhile the cost of ozone tail gas treatment equipment is reduced. Accordingly, the device has the advantages of being high in impact resistance and operation stability, good in economy and the like and can be applied to deep treatment on the high-concentration organic wastewater biochemical effluent.
Description
Technical field
The present invention relates to a kind of organic wastewater bio-chemical effluent ozone advanced treatment apparatus and processing method, highly concentrated for processing
Organic wastewater, belongs to technical field of sewage.
Background technology
Organic wastewater with high concentration has the features such as pollutant levels height, colourity height, complicated component, such as percolate, papermaking
Waste water, dyeing waste water etc., after pretreatment and secondary biochemical treatment, its water outlet COD value is still higher, generally 200～
1000mg/L, colourity is usually 100～500 times, and biodegradability is very low.Therefore, organic wastewater with high concentration bio-chemical effluent need into
One step advanced treating, could qualified discharge.
Ozone oxidation is very competent, and the oxidation-reduction potential in water reaches 2.07eV.Ozone can be degraded at short notice
Pollutant in waste water, make macromolecule contaminant chain rupture, are broken down into small-molecule substance, improve wastewater biodegradability, reduce
Waste water COD and colourity.
However, ozone dissolubility in water is relatively low, and ozone is easily decomposed into oxygen in water, ozone in usual wastewater treatment
Utilization rate is 30%～60%.In order to improve ozone utilization rate, the height of waste water by ozone oxidation unit is typically designed as 5～7m,
The time of staying of waste water is typically designed as 1h, is therefore added significantly to floor space, volume and the place of ozone oxidation device
Reason ability.
In addition, ozone needs electrion to produce, power consumption is higher.Simultaneously because ozone utilization rate is not high, in order to ensure
Treatment effect, in waste water, ozone dosage is higher, also needs to supporting ozone tail gas processing equipment after ozone-oxidizing device.Cause
This, there is following problem demanding prompt solution in conventional ozone treatment apparatus and processing method at present：A. ozone utilization rate is low；b.
Ozone-oxidizing device floor space is big, volume is big, disposal ability is not enough；C. ozone-oxidizing device and processing method investment and operation
Cost is all higher.
Content of the invention
It is an object of the invention to provide a kind of organic wastewater bio-chemical effluent ozone advanced treatment apparatus and processing method, pass through
Keep certain pressure in ozone oxidation device, reach certain pressure unlatching relief valve and discharge and collect ozone tail gas, by jet
Device makes the ozone tail gas of collection and the recycling waste water being mixed into catalysis agent hydrogen peroxide be sufficiently mixed reaction again, is filled out using compound simultaneously
The synergism of material, is therefore greatly improved ozone utilization rate, reduces floor space, need not supporting ozone tail gas processing equipment,
Ozone dosage is little, and cost of investment and operating cost are low.
In order to achieve the above object, the invention provides a kind of organic wastewater bio-chemical effluent ozone advanced treatment apparatus, its
It is characterised by, including airtight ozone oxidation device, exhaust collection pipeline connection safety valve, safety are passed through in the top of ozone oxidation device
The outlet connecting pipe road of valve connects ejector, and ejector connects the inlet pipeline of ozone oxidation device.
Preferably, described ozone oxidation device include the first oxidizing chamber, the second oxidizing chamber and located at the first oxidizing chamber and
Central dividing plate between second oxidizing chamber, described central dividing plate includes the first oxidizing chamber dividing plate positioned at the first oxidizing chamber side
With the second oxidizing chamber dividing plate positioned at the second oxidizing chamber side, the first oxidizing chamber and the second oxidizing chamber separated by central dividing plate,
First oxidizing chamber and second oxidation interior be provided with compounded mix, organic wastewater flow through successively the first oxidizing chamber, the first oxidizing chamber every
Space between plate and the second oxidizing chamber dividing plate and the second oxidizing chamber.
It is highly preferred that the material of described ozone oxidation device is 304L or 316L rustless steel.
It is highly preferred that described ozone oxidation device inner surface is lined with enamel or politef.
It is highly preferred that described ozone oxidation device height is 2～3m.
It is highly preferred that described ozone oxidation device is circular.
It is highly preferred that described central dividing plate surface is lined with enamel or politef.
It is highly preferred that the spacing of the first described oxidizing chamber dividing plate and the second oxidizing chamber dividing plate is 0.1～0.5m.
It is highly preferred that described compounded mix includes upper strata filler, middle filler and the lower floor setting gradually from top to bottom
Filler.
It is highly preferred that described compounded mix filling rate is 30～45%.
It is highly preferred that in described compounded mix, the packing volume ratio of upper strata filler, middle filler and lower floor's filler is (1
～3): (3～8): (1～3)；
It is highly preferred that described upper strata filler is dolomite, calcite or Gypsum Fibrosum.
It is highly preferred that the equivalent grain size of described upper strata filler is 1～5mm.
It is highly preferred that the preparation method of described middle filler comprises the following steps：
The first step：Palladous nitrate., aluminum nitrate and carbamide are 1: 2: 20 in molar ratio, being placed in volume ratio is 1：1 organic molten
In the mixed solvent of agent and water, continuously stirred uniform, described organic solvent is methanol, ethanol, propanol or isopropanol；
Second step：The clear liquid that the first step is obtained is transferred in teflon-lined pressure cooker, 180～220 DEG C of guarantors
After holding 12～18h, it is cooled to room temperature；
3rd step：Solution in pot is filtrated to get precipitate, using the mixed solvent cleaning precipitate in the first step, until
Filtrate is in neutrality；
4th step：The precipitate that 3rd step is obtained is placed in after drying in 80～100 DEG C, is placed in 500～900 DEG C
Roasting 4～6h, is cooled to room temperature, you can obtain middle filler.
The BET specific surface area of described middle filler is 239～276m2/ g, BJH pore-size distribution in 2～12nm, total hole body
Amass as 0.3146～0.3386cm3/g.
It is highly preferred that the particle diameter of described middle filler is 3～9nm.
It is highly preferred that the BET specific surface area of described middle filler is 276m2/ g, BJH pore-size distribution in 3～9nm, always
Pore volume is 0.3386cm3/g.
It is highly preferred that described lower floor's filler is in erose Talcum, montmorillonite, kaolinite or hydromica
Kind.
It is highly preferred that the equivalent grain size of described lower floor's filler is 5mm～10mm.
Preferably, the bottom of described ozone oxidation device is provided with the first aeration plate and the second aeration plate, the first aeration plate and
Second aeration plate connects the first booster fan and the second booster fan respectively, and the first booster fan and the second booster fan connect respectively
Connect the first ozone effusion meter and the second ozone effusion meter, the first ozone effusion meter and the second ozone effusion meter connect the first valve respectively
Door and the second valve, the first valve and the second valve connect ozonator, and ozonator connects source of the gas.
It is highly preferred that described source of the gas is one of air source or source of oxygen.
It is highly preferred that the first described valve and the second valve are the combination of one of ball valve or butterfly valve or two kinds.
It is highly preferred that the first described ozone effusion meter and the second ozone effusion meter are vortex-shedding meter, target type meter
Or the combination of one of orifice flowmeter or two kinds.
It is highly preferred that the first described booster fan and the second booster fan are centrifugal booster fan or roots-type pressurization
The combination of one of blower fan or two kinds.
Preferably, the first described aeration plate and the second aeration plate are microporous aeration disc, and material is pottery or titanium valve.
Preferably, the outlet of described ozone oxidation device connects circulating pump, and circulating pump connects recycle stream gauge, dosing pump
Outlet pipeline be connected with ejector by triplate line with the outlet pipeline of recycle stream gauge, dosing pump connect hydrogen peroxide dosing
Tank.
It is highly preferred that the hydrogen peroxide concentration in described hydrogen peroxide grug feeding ja is 27.5%, 30% or 35%.
Preferably, the inlet pipeline of described ozone oxidation device is provided with feed water flow gauge and elevator pump.
Present invention also offers a kind of organic wastewater bio-chemical effluent ozone deep treatment method is it is characterised in that adopt upper
The organic wastewater bio-chemical effluent ozone advanced treatment apparatus stated, comprise the following steps：By organic wastewater bio-chemical effluent from ozone oxygen
Change device upper end porch to send into from top to bottom, ozone oxidation device bottom constantly carries out ozonation aerated, and ozone gas are in ozone oxidation
Move from bottom to top in device, organic wastewater bio-chemical effluent, after ozone Oxidation Treatment, is arranged from ozone oxidation device lower end exit
Go out；A part of wastewater effluent is merged with the hydrogen peroxide adding sends into ejector, in the continuous aeration process of ozone, ozone oxygen after mixing
Change pressure in device to be continuously increased, when pressure exceedes the Opening pressure of relief valve, relief valve starts to discharge ozone tail gas, ozone tail
Gas is collected by pipeline and is sent into ejector, mixes with waste water therein, enters ozone oxidation device and continues with process, constantly circulates
During, a part of wastewater effluent discharge；When in ozone oxidation device, pressure is reduced to the blow pressure of relief valve, relief valve stops
Only release ozone tail gas process.
Preferably, the COD of described organic wastewater bio-chemical effluent is 200～1000mg/L.
Preferably, in described ozone oxidation device, the time of staying of waste water is 5～15min.
Preferably, the ozonation aerated amount of the first described aeration plate and the second aeration plate is respectively 100～200mg/L and 20
～80mg/L.
Preferably, hydrogen peroxide that is described and adding merges the waste water circulation of a part of wastewater effluent mixing than for 3～
8, hydrogen peroxide addition is 15～80mg/L.
Preferably, described opening pressure of safety valve be 0.2Mpa or 0.3Mpa, blow pressure be 0.12Mpa or
0.16Mpa.
Compared with prior art, the invention has the beneficial effects as follows：
In ozone oxidation device of the present invention, current and ozone remain counter current contacting, and mass transfer force is big；Two sections of ladders of ozone
Degree progressively reduced aeration, makes useless Measuring Ozone Concentration in Water in ozone oxidation device keep uniformly；Using three layers of compounded mix coordinated, filter
The SS of ozone, absorption Pollutants in Wastewater catalysis ozone generation hydroxyl radical free radical and pollutant reaction, shearing is consumed in waste water
Waste water and ozone bubbles, increase the air-water contact time；Ozone continuous aeration, by the control of relief valve, inside ozone oxidation device
Run with certain pressure, so that ozone dissolubility is increased, ozone extended residence time in pond；The ozone tail gas of relief valve release
Enter ejector, after strongly mixing with the recycling waste water being mixed into hydrogen peroxide catalyst, enter ozone oxidation device circular treatment, increase
Ozone advanced treating effect, makes ozone utilization rate bring up to more than 90%, saves the use of ozone tail gas processing equipment.
Apparatus of the present invention structure simple it is easy to operation, by maintaining certain pressure in ozone oxidation device, and compounded mix
Synergism, waste water circulation backflow, ozone collect recycle.This device has that impact resistance ability is strong, operation stability is high, warp
The features such as Ji property is good, can be used for the advanced treating of organic wastewater with high concentration bio-chemical effluent.
Brief description
Fig. 1 is a kind of organic wastewater with high concentration bio-chemical effluent ozone advanced treatment apparatus schematic diagram that the present invention provides；
Wherein, 1- elevator pump, 2- feed water flow gauge, 3- ozone oxidation device, 4- source of the gas, 5- ozonator, 6- first valve
Door, 10- second valve, 7- the first ozone effusion meter, 11- the second ozone effusion meter, 8- first booster fan, 12- second pressurize
Blower fan, 9- first aeration plate, 13- second aeration plate, 14- circulating pump, 15- recycle stream gauge, 16- dosing pump, 17- hydrogen peroxide adds
Medicinal cupping, 18- relief valve, 19- ejector, 20- upper strata filler, 20a- the first oxidizing chamber upper strata filler, on 20b- second oxidizing chamber
Layer filler, 21- middle filler, 21a- the first oxidizing chamber middle filler, 21b- the second oxidizing chamber middle filler, 22- lower floor filler,
22a- the first oxidizing chamber lower floor filler, 22b- the second oxidizing chamber lower floor filler, 23- central dividing plate, in the middle of 23a- first oxidizing chamber
Dividing plate, 23b- the second oxidizing chamber central dividing plate, 24- compounded mix, 24a- the first oxidizing chamber compounded mix, 24b- second oxidizing chamber
Compounded mix, 25- first oxidizing chamber, 26- second oxidizing chamber.
Specific embodiment
With reference to specific embodiment, the present invention is expanded on further.It should be understood that these embodiments are merely to illustrate the present invention
Rather than restriction the scope of the present invention.In addition, it is to be understood that after having read the content of present invention instruction, people in the art
Member can make various changes or modifications to the present invention, and these equivalent form of values equally fall within the application appended claims and limited
Scope.
Embodiment 1：The process of percolate bio-chemical effluent
As shown in figure 1, a kind of organic wastewater bio-chemical effluent ozone advanced treatment apparatus, including ozone oxidation unit, ozone
Feed unit, waste water circulation unit and ozone tail gas reuse unit.
Described ozone oxidation unit includes airtight ozone oxidation device 3, and described ozone oxidation device 3 includes the first oxidation
Room 25, the second oxidizing chamber 26 and the central dividing plate 23 between the first oxidizing chamber 25 and the second oxidizing chamber 26, described in
Space bar 23 includes the first oxidizing chamber dividing plate 23a positioned at the first oxidizing chamber 25 side and be located at the second oxidizing chamber 26 side the
Titanium dioxide room dividing plate 23b, the first oxidizing chamber 25 and the second oxidizing chamber 26 are separated by central dividing plate 23, the first oxidizing chamber 25 and
It is provided with compounded mix 24 in titanium dioxide room 26.Organic wastewater flows through the first oxidizing chamber 25, the first oxidizing chamber dividing plate 23a and successively
Space between the dividing plate 23b of titanium dioxide room and the second oxidizing chamber 26.The material of described ozone oxidation device 3 is 316L rustless steel,
Inner surface is lined with enamel material, highly for 2.8m.Ozone oxidation device 3 is circular.Central dividing plate 23 surface is lined with enamel.First
The spacing of oxidizing chamber dividing plate 23a and the second oxidizing chamber dividing plate 23b is 0.5m.Described compounded mix 24 is included from top to bottom successively
Upper strata filler 20, middle filler 21 and lower floor's filler 22 of setting.In ozone oxidation device 3, the time of staying of waste water is 5min.
In the first described oxidizing chamber compounded mix 24a, the first oxidizing chamber upper strata filler 20a is equivalent grain size is 3mm
Calcite, the particle diameter of the first oxidizing chamber middle filler 21a is 3～9nm, and the first oxidizing chamber lower floor filler 22a is that equivalent grain size is
The erose Talcum of 5mm.The filling rate of the first described oxidizing chamber compounded mix 24a is 40%.The first described oxygen
Change in the compounded mix 24a of room, the first oxidizing chamber upper strata filler 20a, the first oxidizing chamber middle filler 21a and the first oxidizing chamber lower floor
The packing volume of filler 22a is than for 3: 5: 3.In the second described oxidizing chamber compounded mix 24b, the second oxidizing chamber upper strata filler
20b is the dolomite that equivalent grain size is 5mm, and the particle diameter of the second oxidizing chamber middle filler 21b is 3～9nm, the second oxidizing chamber lower floor
Filler 22b is the hydromica that equivalent grain size is 5mm.The filling rate of the second described oxidizing chamber compounded mix 24b is 30%.Described
Compounded mix 24b in, the second oxidizing chamber upper strata filler 21b, the second oxidizing chamber middle filler 22b and the second oxidizing chamber lower floor fill out
The packing volume ratio of material 23b is for 1: 3: 1.
The preparation method of the first oxidizing chamber middle filler 21a and the second oxidizing chamber middle filler 21b is：
The first step：It is 1: 1 that Palladous nitrate. 0.01mol, aluminum nitrate 0.02mol and carbamide 0.2mol are placed in 180mL volume ratio
The mixed solvent of ethanol and water in, continuously stirred uniformly；
Second step：The clear liquid that the first step is obtained is transferred in teflon-lined pressure cooker, 220 DEG C of holding 12h
Afterwards, it is cooled to 25 DEG C of room temperature；
3rd step：Solution in pot is filtrated to get precipitate, using the mixed solvent cleaning precipitate in the first step, until
Filtrate is in neutrality；
4th step：The precipitate that 3rd step is obtained is placed in after drying in 100 DEG C, is placed on roasting 6h in 900 DEG C, cold
But to room temperature, you can obtain porous nanometer material (PdAl2O4), as in the first oxidizing chamber middle filler 21a and the second oxidizing chamber
Layer filler 21b.The BET specific surface area of described porous nanometer material is 276m2/ g, BJH pore-size distribution in 3～9nm, total hole body
Amass as 0.3386cm3/g.
Described ozone supply unit includes source of the gas 4, ozonator 5, the first valve 6, the second valve 10, the first ozone
Effusion meter 7, the second ozone effusion meter 11, the first booster fan 8, the second booster fan 12, the first aeration plate 9 and the second aeration plate
13.The first oxidizing chamber 25 located at ozone oxidation device 3 of first aeration plate 9 and the second aeration plate 13 and the bottom of the second oxidizing chamber 26
Portion, the first aeration plate 9 and the second aeration plate 13 connect the first booster fan 8 and the second booster fan 12, the first pressurization wind respectively
Machine 8 and the second booster fan 12 connect the first ozone effusion meter 7 and the second ozone effusion meter 11, the first ozone effusion meter 7 respectively
Connect the first valve 6 and the second valve 10 with the second ozone effusion meter 11 respectively, the first valve 6 and the second valve 10 connect ozone
Generator 5, ozonator 5 connects source of the gas 4.
Described waste water circulation unit includes circulating pump 14, recycle stream gauge 15, dosing pump 16, hydrogen peroxide grug feeding ja 17 and
Ejector 19.The outlet of ozone oxidation device 3 connects circulating pump 14, and circulating pump 14 connects recycle stream gauge 15, dosing pump 16
The outlet pipeline of outlet pipeline and recycle stream gauge 15 pass through after triplate line entrance waste water circulation unit main line with ejector
19 connections, dosing pump 16 connects hydrogen peroxide grug feeding ja 17.
Described ozone tail gas reuse unit includes relief valve 18, the first oxidizing chamber 25 of ozone oxidation device 3 and the second oxygen
The top changing room 26 connects extraction exhaust collection pipeline, and exhaust collection pipeline is connected with relief valve 18, relief valve 18 export pipeline
It is connected with ejector 19, ejector 19 connects the inlet pipeline of ozone oxidation device 3.
The inlet pipeline of described ozone oxidation device 3 is provided with feed water flow gauge 2 and elevator pump 1.
Described each connecting pipe of organic wastewater bio-chemical effluent ozone advanced treatment apparatus and valve are all using 304L
Or 316L stainless steel material, and liner enamel or polytetrafluoroethylmaterial material.
Processing method using above-mentioned organic wastewater bio-chemical effluent ozone advanced treatment apparatus is：
By percolate bio-chemical effluent (water quality detection the results are shown in Table 1) through elevator pump 1 and feed water flow gauge 2 quantitative from
Ozone oxidation device 3 upper end porch is sent into from top to bottom, and after the first oxidizing chamber compounded mix 24a, waste water passes through the to waste water
Runner between one oxidizing chamber central dividing plate 23a and the second oxidizing chamber central dividing plate 23b, from top overflow from top to bottom to second
In oxidizing chamber 26, continue through the second oxidizing chamber compounded mix 24b, final waste water is discharged from ozone oxidation device 3 lower end exit.
When compounded mix 24, upper strata filler 20 filters the SS in waste water to wherein waste water, the dirt in absorption waste water during middle filler 21
Dye thing, uniform fluid flow water outlet sheared by lower floor's filler 22.
Source of the gas 4 supplies oxygen to ozonator 5, by the first valve 6 and the second valve 10 and the first ozone flow
Meter 7 and the display of the second ozone effusion meter 11, adjust the first booster fan 8 and the second booster fan 12, make the first aeration plate 9 He
The ozonation aerated amount of the second aeration plate 13 is respectively 160mg/L and 40mg/L, and blower fan amount of pressurization is 0.2Mpa.Ozone oxidation device
3 bottoms constantly carry out ozonation aerated, expose into ozone move from bottom to top, useless with flow from top to bottom through compounded mix 24
Water keeps counter current contacting.Described source of the gas 4 is liquid oxygen, and the first valve 6 and the second valve 10 are ball valve, the first booster fan 8 He
Second booster fan 12, is Roots's booster fan, and the first aeration plate 9 and the second aeration plate 13 are titanium plate microporous aeration disc.Biochemical
Water outlet, after ozone Oxidation Treatment, is discharged from ozone oxidation device 3 lower end exit.Ozone bubbles are shredded increasing by lower floor's filler 22
Plus ozone dissolubility catalysis ozone generation hydroxyl radical free radical, middle filler 21 catalysis ozone generation hydroxyl radical free radical and pollutant
Reaction, upper strata filler 20 reduces ozone bubbles and rises kinetic energy increase ozone and waste water time.
A part of wastewater effluent (in terms of waste water circulation ratio) after ozone oxidation device 3 is processed by circulating pump 14 is conveyed into waste water
Circulation line, shows the circulating load of waste water by recycle stream gauge 15, will be double in hydrogen peroxide grug feeding ja 17 by dosing pump 16
Oxygen water is quantitatively squeezed in waste water circulation pipeline, is sufficiently mixed with the waste water of circulating pump 14 conveying, sends into ejector 19 after merging.Institute
For 4, in described hydrogen peroxide grug feeding ja, the concentration of hydrogen peroxide is 30% to the waste water circulation stated ratio, and the addition of hydrogen peroxide is
50mg/L.
In the continuous aeration process of ozone, in ozone oxidation device 3, pressure is continuously increased, when pressure exceedes the unlatching of relief valve 18
During pressure, relief valve 18 starts to discharge ozone tail gas, and ozone tail gas are collected by pipeline and sent into ejector 19；When pressure drop in pond
As little as the blow pressure of relief valve when, relief valve start stop release ozone tail gas process.Described opening pressure of safety valve is
0.3Mpa, blow pressure is 0.16Mpa.
The ozone being discharged by relief valve 18, is entered ejector 19 with the recycling waste water being mixed into hydrogen peroxide catalyst and is filled
After dividing mixing, it is conveyed into ozone oxidation device 3 top water inlet, proceeds circular treatment, in continuous cyclic process, a part is useless
Water water outlet (water quality detection the results are shown in Table 2) is discharged.
Table 1：Percolate bio-chemical effluent water quality detection result
| Water quality index | Testing result |
| COD | 800～1000mg/L |
| BOD5/COD | 0.07～0.12 |
| Colourity | 100～400 |
Table 2：The result of percolate bio-chemical effluent
| Water quality index | Testing result |
| COD | 200～500mg/L |
| BOD5/COD | 0.3～0.45 |
| Colourity | 20～40 |
| Ozone utilization rate | 91%～96% |
Embodiment 2：The process of paper waste bio-chemical effluent
As shown in figure 1, a kind of organic wastewater bio-chemical effluent ozone advanced treatment apparatus, including ozone oxidation unit, ozone
Feed unit, waste water circulation unit and ozone tail gas reuse unit.
Described ozone oxidation unit includes airtight ozone oxidation device 3, and described ozone oxidation device 3 includes the first oxidation
Room 25, the second oxidizing chamber 26 and the central dividing plate 23 between the first oxidizing chamber 25 and the second oxidizing chamber 26, described in
Space bar 23 includes the first oxidizing chamber dividing plate 23a positioned at the first oxidizing chamber 25 side and be located at the second oxidizing chamber 26 side the
Titanium dioxide room dividing plate 23b, the first oxidizing chamber 25 and the second oxidizing chamber 26 are separated by central dividing plate 23, the first oxidizing chamber 25 and
It is provided with compounded mix 24 in titanium dioxide room 26.Organic wastewater flows through the first oxidizing chamber 25, the first oxidizing chamber dividing plate 23a and successively
Space between the dividing plate 23b of titanium dioxide room and the second oxidizing chamber 26.The material of described ozone oxidation device 3 is 304L rustless steel,
Inner surface is lined with politef, highly for 2.6m.Ozone oxidation device 3 is circular.Central dividing plate 23 surface is lined with enamel.The
The spacing of one oxidizing chamber dividing plate 23a and the second oxidizing chamber dividing plate 23b is 0.8m.Described compounded mix 24 include from top to bottom according to
The upper strata filler 20 of secondary setting, middle filler 21 and lower floor's filler 22.In ozone oxidation device, the time of staying of waste water is 8min.
First oxidizing chamber upper strata filler 20a is the Gypsum Fibrosum that equivalent grain size is 3mm, the first oxidizing chamber middle filler 21a's
Particle diameter is 3～9nm, and the first oxidizing chamber lower floor filler 22a is the erose kaolinite that equivalent grain size is 5mm.Described
The filling rate of the first oxidizing chamber compounded mix 24a is 45%.In the first described oxidizing chamber compounded mix 24a, the first oxidizing chamber
The packing volume of upper strata filler 20a, the first oxidizing chamber middle filler 21a and the first oxidizing chamber lower floor filler 22a is than for 3: 8: 3.
In the second described oxidizing chamber compounded mix 24b, the second oxidizing chamber upper strata filler 20b is the calcite that equivalent grain size is 3mm, the
The particle diameter of titanium dioxide room middle filler 21b is 3～9nm, and the second oxidizing chamber lower floor filler 22b is that the illiteracy that equivalent grain size is 5mm takes off
Stone.The filling rate of the second described oxidizing chamber compounded mix 24b is 35%.In the second described oxidizing chamber compounded mix 24b, the
The packing volume ratio of titanium dioxide room upper strata filler 20b, the second oxidizing chamber middle filler 21b and the second oxidizing chamber lower floor filler 22b
For 3: 5: 1.
The preparation method of the first oxidizing chamber middle filler 21a and the second oxidizing chamber middle filler 21b is：
The first step：It is 1: 1 that Palladous nitrate. 0.01mol, aluminum nitrate 0.02mol and carbamide 0.2mol are placed in 180mL volume ratio
The mixed solvent of ethanol and water in, continuously stirred uniformly；
Second step：The clear liquid that the first step is obtained is transferred in teflon-lined pressure cooker, 220 DEG C of holding 12h
Afterwards, it is cooled to room temperature (25 DEG C)；
3rd step：Solution in pot is filtrated to get precipitate, using the mixed solvent cleaning precipitate in the first step, until
Filtrate is in neutrality；
4th step：The precipitate that 3rd step is obtained is placed in after drying in 100 DEG C, is placed on roasting 6h in 900 DEG C, cold
But to room temperature, you can obtain porous nanometer material (PdAl2O4), as in the first oxidizing chamber middle filler 21a and the second oxidizing chamber
Layer filler 21b.The BET specific surface area of described porous nanometer material is 276m2/ g, BJH pore-size distribution in 3～9nm, total hole body
Amass as 0.3386cm3/g.
Described ozone supply unit includes source of the gas 4, ozonator 5, the first valve 6, the second valve 10, the first ozone
Effusion meter 7, the second ozone effusion meter 11, the first booster fan 8, the second booster fan 12, the first aeration plate 9 and the second aeration plate
13.The first oxidizing chamber 25 located at ozone oxidation device 3 of first aeration plate 9 and the second aeration plate 13 and the bottom of the second oxidizing chamber 26
Portion, the first aeration plate 9 and the second aeration plate 13 connect the first booster fan 8 and the second booster fan 12, the first pressurization wind respectively
Machine 8 and the second booster fan 12 connect the first ozone effusion meter 7 and the second ozone effusion meter 11, the first ozone effusion meter 7 respectively
Connect the first valve 6 and the second valve 10 with the second ozone effusion meter 11 respectively, the first valve 6 and the second valve 10 connect ozone
Generator 5, ozonator 5 connects source of the gas 4.
Described waste water circulation unit includes circulating pump 14, recycle stream gauge 15, dosing pump 16, hydrogen peroxide grug feeding ja 17 and
Ejector 19.The outlet of ozone oxidation device 3 connects circulating pump 14, and circulating pump 14 connects recycle stream gauge 15, dosing pump 16
The outlet pipeline of outlet pipeline and recycle stream gauge 15 pass through after triplate line entrance waste water circulation unit main line with ejector
19 connections, dosing pump 16 connects hydrogen peroxide grug feeding ja 17.
Described ozone tail gas reuse unit includes relief valve 18, the first oxidizing chamber 25 of ozone oxidation device 3 and the second oxygen
The top changing room 26 connects extraction exhaust collection pipeline, and exhaust collection pipeline is connected with relief valve 18, relief valve 18 export pipeline
It is connected with ejector 19, ejector 19 connects the inlet pipeline of ozone oxidation device 3.
The inlet pipeline of described ozone oxidation device 3 is provided with feed water flow gauge 2 and elevator pump 1.
Described each connecting pipe of organic wastewater bio-chemical effluent ozone advanced treatment apparatus and valve are all using 304L
Or 316L stainless steel material, and liner enamel or polytetrafluoroethylmaterial material.
Processing method using above-mentioned organic wastewater bio-chemical effluent ozone advanced treatment apparatus is：
By paper waste bio-chemical effluent (water quality detection the results are shown in Table 3) through elevator pump 1 and feed water flow gauge 2 quantitation from smelly
Oxygen oxidator 3 upper end porch is sent into from top to bottom, and after the first oxidizing chamber compounded mix 24a, waste water passes through first to waste water
Runner between oxidizing chamber central dividing plate 23a and the second oxidizing chamber central dividing plate 23b, from top overflow from top to bottom to the second oxygen
Change in room 26, continue through the second oxidizing chamber compounded mix 24b, final waste water is discharged from ozone oxidation device 3 lower end exit.
Source of the gas 4 supplies air to ozonator 5, by the first valve 6 and the second valve 10 and the first ozone flow
Meter 7 and the display of the second ozone effusion meter 11, adjust the first booster fan 8 and the second booster fan 12, make the first aeration plate 9 He
The ozonation aerated amount of the second aeration plate 13 is respectively 70mg/L and 40mg/L, and blower fan amount of pressurization is 0.1Mpa.Ozone oxidation device 3
Bottom constantly carry out ozonation aerated, expose into ozone move from bottom to top, useless with flow from top to bottom through compounded mix 24
Water keeps counter current contacting.Described source of the gas 4 is air source, and the first valve 6 and the second valve 10 are ball valve, the first booster fan 8
With the second booster fan 12, it is Roots's booster fan, the first aeration plate 9 and the second aeration plate 13 are ceramic capillary aeration plate.Raw
Dissolve water after ozone Oxidation Treatment, discharge from ozone oxidation device 3 lower end exit.
A part of wastewater effluent (in terms of waste water circulation ratio) after ozone oxidation device 3 is processed by circulating pump 14 is conveyed into waste water
Circulation line, shows the circulating load of waste water by recycle stream gauge 15, will be double in hydrogen peroxide grug feeding ja 17 by dosing pump 16
Oxygen water is quantitatively squeezed in waste water circulation pipeline, is sufficiently mixed with the waste water of circulating pump 14 conveying, sends into ejector 19 after merging.Institute
For 5, in described hydrogen peroxide grug feeding ja, the concentration of hydrogen peroxide is 27.5% to the waste water circulation stated ratio, and the addition of hydrogen peroxide is
15mg/L.
In the continuous aeration process of ozone, in ozone oxidation device 3, pressure is continuously increased, when pressure exceedes the unlatching of relief valve 18
During pressure, relief valve 18 starts to discharge ozone tail gas, and ozone tail gas are collected by pipeline and sent into ejector 19；When pressure drop in pond
As little as the blow pressure of relief valve when, relief valve start stop release ozone tail gas process.Described opening pressure of safety valve is
0.2Mpa, blow pressure is 0.12Mpa.
The ozone being discharged by relief valve 18, is entered ejector 19 with the recycling waste water being mixed into hydrogen peroxide catalyst and is filled
After dividing mixing, it is conveyed into ozone oxidation device 3 top water inlet, proceeds circular treatment, in continuous cyclic process, a part is useless
Water water outlet (water quality detection the results are shown in Table 4) is discharged.
Table 3：Paper waste bio-chemical effluent water quality detection result
| Water quality index | Testing result |
| COD | 200～300mg/L |
| BOD5/COD | 0.09～0.14 |
| Colourity | 100～200 |
Table 4：The result of paper waste bio-chemical effluent
| Water quality index | Testing result |
| COD | 80～100mg/L |
| BOD5/COD | 0.28～0.46 |
| Colourity | 10～30 |
| Ozone utilization rate | 95%～98% |
Embodiment 3：The process of dyeing waste water bio-chemical effluent
As shown in figure 1, a kind of organic wastewater bio-chemical effluent ozone advanced treatment apparatus, including ozone oxidation unit, ozone
Feed unit, waste water circulation unit and ozone tail gas reuse unit.
Described ozone oxidation unit includes airtight ozone oxidation device 3, and described ozone oxidation device 3 includes the first oxidation
Room 25, the second oxidizing chamber 26 and the central dividing plate 23 between the first oxidizing chamber 25 and the second oxidizing chamber 26, described in
Space bar 23 includes the first oxidizing chamber dividing plate 23a positioned at the first oxidizing chamber 25 side and be located at the second oxidizing chamber 26 side the
Titanium dioxide room dividing plate 23b, the first oxidizing chamber 25 and the second oxidizing chamber 26 are separated by central dividing plate 23, the first oxidizing chamber 25 and
It is provided with compounded mix 24 in titanium dioxide room 26.Organic wastewater flows through the first oxidizing chamber 25, the first oxidizing chamber dividing plate 23a and successively
Space between the dividing plate 23b of titanium dioxide room and the second oxidizing chamber 26.The material of described ozone oxidation device 3 is 316L rustless steel,
Inner surface is lined with enamel, highly for 3.0m.Ozone oxidation device 3 is circular.Central dividing plate 23 surface is lined with enamel.First oxidation
The spacing of room dividing plate 23a and the second oxidizing chamber dividing plate 23b is 0.6m.Described compounded mix 24 includes setting gradually from top to bottom
Upper strata filler 20, middle filler 21 and lower floor's filler 22.In ozone oxidation device, the time of staying of waste water is 10min.
First oxidizing chamber upper strata filler 20a is the dolomite that equivalent grain size is 1mm, the first oxidizing chamber middle filler 21a's
Particle diameter is 3～9nm, and the first oxidizing chamber lower floor filler 22a is the erose kaolinite that equivalent grain size is 8mm.Described
The filling rate of the first oxidizing chamber compounded mix 24a is 45%.In the first described oxidizing chamber compounded mix 24a, the first oxidizing chamber
The packing volume of upper strata filler 20a, the first oxidizing chamber middle filler 21a and the first oxidizing chamber lower floor filler 22a is than for 2: 5: 2.
In the second described oxidizing chamber compounded mix 24b, the second oxidizing chamber upper strata filler 20b is the Gypsum Fibrosum that equivalent grain size is 3mm, the
The particle diameter of titanium dioxide room middle filler 21b is 3～9nm, and the second oxidizing chamber lower floor filler 22b is the water cloud that equivalent grain size is 5mm
Female.The filling rate of the second described oxidizing chamber compounded mix 24b is 30%.In the second described oxidizing chamber compounded mix 24b, the
The packing volume ratio of titanium dioxide room upper strata filler 20b, the second oxidizing chamber middle filler 21b and the second oxidizing chamber lower floor filler 22b
For 1: 3: 1.
The preparation method of the first oxidizing chamber middle filler 21a and the second oxidizing chamber middle filler 21b is：：
The first step：Palladous nitrate. 0.01mol, anhydrous nitric acid aluminum 0.02mol and carbamide 0.2mol are placed in 180mL volume ratio is
In 1: 1 ethanol and the mixed solvent of water, continuously stirred uniform；
Second step：The clear liquid that the first step is obtained is transferred in teflon-lined pressure cooker, 220 DEG C of holding 12h
Afterwards, it is cooled to room temperature (25 DEG C)；
3rd step：Solution in pot is filtrated to get precipitate, using the mixed solvent cleaning precipitate in the first step, until
Filtrate is in neutrality；
4th step：The precipitate that 3rd step is obtained is placed in after drying in 100 DEG C, is placed on roasting 6h in 900 DEG C, cold
But to room temperature, you can obtain porous nanometer material (PdAl2O4), as in the first oxidizing chamber middle filler 21a and the second oxidizing chamber
Layer filler 21b.The BET specific surface area of described porous nanometer material is 276m2/ g, BJH pore-size distribution in 3～9nm, total hole body
Amass as 0.3386cm3/g.
Described ozone supply unit includes source of the gas 4, ozonator 5, the first valve 6, the second valve 10, the first ozone
Effusion meter 7, the second ozone effusion meter 11, the first booster fan 8, the second booster fan 12, the first aeration plate 9 and the second aeration plate
13.The first oxidizing chamber 25 located at ozone oxidation device 3 of first aeration plate 9 and the second aeration plate 13 and the bottom of the second oxidizing chamber 26
Portion, the first aeration plate 9 and the second aeration plate 13 connect the first booster fan 8 and the second booster fan 12, the first pressurization wind respectively
Machine 8 and the second booster fan 12 connect the first ozone effusion meter 7 and the second ozone effusion meter 11, the first ozone effusion meter 7 respectively
Connect the first valve 6 and the second valve 10 with the second ozone effusion meter 11 respectively, the first valve 6 and the second valve 10 connect ozone
Generator 5, ozonator 5 connects source of the gas 4.
Described waste water circulation unit includes circulating pump 14, recycle stream gauge 15, dosing pump 16, hydrogen peroxide grug feeding ja 17 and
Ejector 19.The outlet of ozone oxidation device 3 connects circulating pump 14, and circulating pump 14 connects recycle stream gauge 15, dosing pump 16
The outlet pipeline of outlet pipeline and recycle stream gauge 15 pass through after triplate line entrance waste water circulation unit main line with ejector
19 connections, dosing pump 16 connects hydrogen peroxide grug feeding ja 17.
Described ozone tail gas reuse unit includes relief valve 18, the first oxidizing chamber 25 of ozone oxidation device 3 and the second oxygen
The top changing room 26 connects extraction exhaust collection pipeline, and exhaust collection pipeline is connected with relief valve 18, relief valve 18 export pipeline
It is connected with ejector 19, ejector 19 connects the inlet pipeline of ozone oxidation device 3.
The inlet pipeline of described ozone oxidation device 3 is provided with feed water flow gauge 2 and elevator pump 1.
Described each connecting pipe of organic wastewater bio-chemical effluent ozone advanced treatment apparatus and valve are all using 304L
Or 316L stainless steel material, and liner enamel or polytetrafluoroethylmaterial material.
Processing method using above-mentioned organic wastewater bio-chemical effluent ozone advanced treatment apparatus is：
By dyeing waste water bio-chemical effluent (water quality detection the results are shown in Table 5) through elevator pump 1 and feed water flow gauge 2 quantitation from smelly
Oxygen oxidator 3 upper end porch is sent into from top to bottom, and after the first oxidizing chamber compounded mix 24a, waste water passes through first to waste water
Runner between oxidizing chamber central dividing plate 23a and the second oxidizing chamber central dividing plate 23b, from top overflow from top to bottom to the second oxygen
Change in room 26, continue through the second oxidizing chamber compounded mix 24b, final waste water is discharged from ozone oxidation device 3 lower end exit.
Source of the gas 4 supplies air to ozonator 5, by the first valve 6 and the second valve 10 and the first ozone flow
Meter 7 and the display of the second ozone effusion meter 11, adjust the first booster fan 8 and the second booster fan 12, make the first aeration plate 9 He
The ozonation aerated amount of the second aeration plate 13 is respectively 100mg/L and 60mg/L, and blower fan amount of pressurization is 0.2Mpa.Ozone oxidation device
3 bottoms constantly carry out ozonation aerated, expose into ozone move from bottom to top, useless with flow from top to bottom through compounded mix 24
Water keeps counter current contacting.Described source of the gas 4 is air source, and the first valve 6 and the second valve 10 are ball valve, the first booster fan 8
With the second booster fan 12, for centrifugal booster fan, the first aeration plate 9 and the second aeration plate 13 are titanium valve micro-pore aeration
Disk.Bio-chemical effluent, after ozone Oxidation Treatment, is discharged from ozone oxidation device 3 lower end exit.
A part of wastewater effluent (in terms of waste water circulation ratio) after ozone oxidation device 3 is processed by circulating pump 14 is conveyed into waste water
Circulation line, shows the circulating load of waste water by recycle stream gauge 15, will be double in hydrogen peroxide grug feeding ja 17 by dosing pump 16
Oxygen water is quantitatively squeezed in waste water circulation pipeline, is sufficiently mixed with the waste water of circulating pump 14 conveying, sends into ejector 19 after merging.Institute
For 8, in described hydrogen peroxide grug feeding ja, the concentration of hydrogen peroxide is 35% to the waste water circulation stated ratio, and the addition of hydrogen peroxide is
30mg/L.
In the continuous aeration process of ozone, in ozone oxidation device 3, pressure is continuously increased, when pressure exceedes the unlatching of relief valve 18
During pressure, relief valve 18 starts to discharge ozone tail gas, and ozone tail gas are collected by pipeline and sent into ejector 19；When pressure drop in pond
As little as the blow pressure of relief valve when, relief valve start stop release ozone tail gas process.Described opening pressure of safety valve is
0.3Mpa, blow pressure is 0.16Mpa.
The ozone being discharged by relief valve 18, is entered ejector 19 with the recycling waste water being mixed into hydrogen peroxide catalyst and is filled
After dividing mixing, it is conveyed into ozone oxidation device 3 top water inlet, proceeds circular treatment, in continuous cyclic process, a part is useless
Water water outlet (water quality detection the results are shown in Table 6) is discharged.
Table 5：Dyeing waste water bio-chemical effluent water quality detection result
| Water quality index | Testing result |
| COD | 300～500mg/L |
| BOD5/COD | 0.08～0.15 |
| Colourity | 100～200 |
Table 6：The result of dyeing waste water bio-chemical effluent
Claims (10)
1. a kind of organic wastewater bio-chemical effluent ozone advanced treatment apparatus are it is characterised in that include airtight ozone oxidation device
(3), exhaust collection pipeline connection safety valve (18), the outlet connecting pipe of relief valve (18) are passed through in the top of ozone oxidation device (3)
Road connects ejector (19), and ejector (19) connects the inlet pipeline of ozone oxidation device (3).
2. organic wastewater bio-chemical effluent ozone advanced treatment apparatus as claimed in claim 1 are it is characterised in that described ozone
Oxidator (3) includes the first oxidizing chamber (25), the second oxidizing chamber (26) and located at the first oxidizing chamber (25) and the second oxidizing chamber
(26) central dividing plate (23) between, described central dividing plate (23) includes the first oxidation positioned at the first oxidizing chamber (25) side
Room dividing plate (23a) and the second oxidizing chamber dividing plate (23b) being located at the second oxidizing chamber (26) side, the first oxidizing chamber (25) and second
Oxidizing chamber (26) passes through central dividing plate (23) and separates, and is provided with compounded mix in the first oxidizing chamber (25) and the second oxidizing chamber (26)
(24), organic wastewater flows through the first oxidizing chamber (25), the first oxidizing chamber dividing plate (23a) and the second oxidizing chamber dividing plate (23b) successively
Between space and the second oxidizing chamber (26).
3. organic wastewater bio-chemical effluent ozone advanced treatment apparatus as claimed in claim 2 are it is characterised in that described is compound
Upper strata filler (20), middle filler (21) and lower floor's filler (22) that filler (24) inclusion sets gradually from top to bottom.
4. organic wastewater bio-chemical effluent ozone advanced treatment apparatus as claimed in claim 3 are it is characterised in that described is compound
In filler (24), the packing volume ratio of upper strata filler (20), middle filler (21) and lower floor's filler (22) is (1～3): (3～8)
: (1～3).
5. organic wastewater bio-chemical effluent ozone advanced treatment apparatus as claimed in claim 3 are it is characterised in that described upper strata
Filler (20) is dolomite, calcite or Gypsum Fibrosum；Middle filler；Described lower floor's filler (22) is erose cunning
One of stone, montmorillonite, kaolinite or hydromica；The preparation method of described middle filler (21) comprises the following steps：The
One step：Palladous nitrate., aluminum nitrate and carbamide are 1: 2: 20 in molar ratio, are placed in the mixed of organic solvent and the water that volume ratio is 1: 1
In bonding solvent, continuously stirred uniform, described organic solvent is methanol, ethanol, propanol or isopropanol；Second step：The first step is obtained
The clear liquid obtaining is transferred in teflon-lined pressure cooker, after 180～220 DEG C keep 12～18h, is cooled to room
Temperature；3rd step：Solution in pot is filtrated to get precipitate, using the mixed solvent cleaning precipitate in the first step, until filtrate
In neutrality；4th step：The precipitate that 3rd step is obtained is placed in after drying in 80～100 DEG C, is placed in 500～900 DEG C
Roasting 4～6h, is cooled to room temperature, you can obtain middle filler.
6. organic wastewater bio-chemical effluent ozone advanced treatment apparatus as claimed in claim 1 are it is characterised in that described ozone
The bottom of oxidator (3) is provided with the first aeration plate (9) and the second aeration plate (13), the first aeration plate (9) and the second aeration plate
(13) the first booster fan (8) and the second booster fan (12), the first booster fan (8) and the second booster fan are connected respectively
(12) the first ozone effusion meter (7) and the second ozone effusion meter (11), the first ozone effusion meter (7) and the second ozone are connected respectively
Effusion meter (11) connects the first valve (6) and the second valve (10) respectively, and the first valve (6) and the second valve (10) connect ozone
Generator (5), ozonator (5) connects source of the gas (4).
7. organic wastewater bio-chemical effluent ozone advanced treatment apparatus as claimed in claim 1 are it is characterised in that described ozone
The outlet of oxidator (3) connects circulating pump (14), and circulating pump (14) connects recycle stream gauge (15), the water outlet of dosing pump (16)
Pipeline is connected with ejector (19) by triplate line with the outlet pipeline of recycle stream gauge (15), and dosing pump (16) connects dioxygen
Water grug feeding jar (17).
8. organic wastewater bio-chemical effluent ozone advanced treatment apparatus as claimed in claim 1 are it is characterised in that described ozone
The inlet pipeline of oxidator (3) is provided with feed water flow gauge (2) and elevator pump (1).
9. a kind of organic wastewater bio-chemical effluent ozone deep treatment method is it is characterised in that adopt any one of claim 1-8
Described organic wastewater bio-chemical effluent ozone advanced treatment apparatus, comprise the following steps：By organic wastewater bio-chemical effluent from ozone
Oxidator upper end porch is sent into from top to bottom, and ozone oxidation device bottom constantly carries out ozonation aerated, and ozone gas are in ozone oxygen
Change device in move from bottom to top, organic wastewater bio-chemical effluent after ozone Oxidation Treatment, from ozone oxidation device lower end exit
Discharge；A part of wastewater effluent is merged with the hydrogen peroxide adding sends into ejector, in the continuous aeration process of ozone, ozone after mixing
In oxidator, pressure is continuously increased, and when pressure exceedes the Opening pressure of relief valve, relief valve starts to discharge ozone tail gas, ozone
Tail gas is collected by pipeline and is sent into ejector, mixes with waste water therein, enters ozone oxidation device and continues with process, constantly follows
During ring, a part of wastewater effluent discharge；When in ozone oxidation device, pressure is reduced to the blow pressure of relief valve, relief valve
Stop release ozone tail gas process.
10. organic wastewater bio-chemical effluent ozone deep treatment method as claimed in claim 9 is it is characterised in that described peace
Full valve Opening pressure is 0.2Mpa or 0.3Mpa, and blow pressure is 0.12Mpa or 0.16Mpa.
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| CN109626682A (en) * | 2019-02-12 | 2019-04-16 | 辽宁拓启环保科技有限公司 | A kind of device handling highly concentrated waste water from dyestuff and processing method |
| CN110194520A (en) * | 2019-06-25 | 2019-09-03 | 南京泽辉环保科技有限公司 | A kind of enhanced oxidation method of landfill leachate |
| CN110194521A (en) * | 2019-06-25 | 2019-09-03 | 南京泽辉环保科技有限公司 | A kind of sewage treatment plant tail water deep-purifying method |
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