CN105858793B - A kind of adsorbing-oxidising three-phase fluid bed reactor for administering industrial wastewater - Google Patents
A kind of adsorbing-oxidising three-phase fluid bed reactor for administering industrial wastewater Download PDFInfo
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- CN105858793B CN105858793B CN201610428599.8A CN201610428599A CN105858793B CN 105858793 B CN105858793 B CN 105858793B CN 201610428599 A CN201610428599 A CN 201610428599A CN 105858793 B CN105858793 B CN 105858793B
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- bed reactor
- fluidized
- water
- oxidising
- adsorbing
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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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
- C02F1/74—Treatment of water, waste water, or sewage by oxidation with air
Abstract
The invention discloses a kind of adsorbing-oxidising three-phase fluid bed reactors for administering industrial wastewater, comprising: fluidized-bed reactor ontology, Powdered Activated Carbon charge pump, wastewater feed pump, mixing feeder, water distributor, air blower, air sparger and micro-hole aerator；Successively sequential communication, micro-hole aerator are located at the surface of air sparger for air blower, air sparger and micro-hole aerator, and air sparger and micro-hole aerator are arranged in fluidized-bed reactor ontology, and it is external that air blower is located at fluidized-bed reactor sheet；Wastewater feed pump and Powdered Activated Carbon charge pump are imported by pipeline mixes feeder, and mixing feeder is connected to water distributor, and water distributor is located at the surface in fluidized-bed reactor ontology and being located at micro-hole aerator；Fluidized-bed reactor body bottom portion is equipped with sewage draining exit, and sewage draining exit is located at below air sparger.Reactor of the present invention improves harmful substance removal rate, reduces consumption, improves circular economy, and occupied area is few.
Description
Technical field
The present invention relates to a kind of adsorbing-oxidising three-phase fluid bed reactors for administering industrial wastewater, belong to wastewater treatment neck
Domain.
Background technique
Industrial wastewater pollution is China's one of problem of environmental pollution outstanding at present, and causes insufficient water sources, water body dirty
The great reason of dye and water environment degradation, therefore, industrial water pollution prevention and treatment are also one of the emphasis of China environmental protection.
Industrial wastewater is the main source of pollutant, is had sternly to agricultural, social environment, natural environment and health of people
The harm of weight is that one of processing waste water is most difficult in industrial wastewater containing organic matter and heavy metal wastewater thereby, and there are works for processing method at present
Skill is complicated, cost of investment is high, takes up a large area, the defects for the treatment of effeciency is not satisfactory.
Summary of the invention
It is difficult to improvement up to standard for the current method for administering industrial wastewater, or operation operating cost is high, ton water harnessing expense
Height, or the disadvantages of take up a large area, the present invention provide the three-phase fluid bed reactor that industrial wastewater is administered in a kind of absorption-oxidation,
For waste water treatment, harmful substance removal rate is improved, resource consumption is reduced, improves circular economy, is without secondary pollution,
Have many advantages, such as that occupied area is few and (handles Economization on land 60-90% than conventional biochemical.
In order to solve the above technical problems, the technical solution adopted in the present invention is as follows:
A kind of adsorbing-oxidising three-phase fluid bed reactor for administering industrial wastewater, comprising: fluidized-bed reactor ontology, powder
Last active carbon charge pump, wastewater feed pump, mixing feeder, water distributor, air blower, air sparger and micro-hole aerator；
Successively sequential communication, micro-hole aerator are located at air sparger for air blower, air sparger and micro-hole aerator
Surface, air sparger and micro-hole aerator are arranged in fluidized-bed reactor ontology, and air blower is located at fluidized-bed reaction
Device sheet is external；
Wastewater feed pump and Powdered Activated Carbon charge pump are imported by pipeline mixes feeder, mixes feeder and water distribution
Device connection, water distributor are located at the surface in fluidized-bed reactor ontology and being located at micro-hole aerator；
Fluidized-bed reactor body bottom portion is equipped with sewage draining exit, and sewage draining exit is located at below air sparger.
The above-mentioned adsorbing-oxidising three-phase fluid bed reactor for administering industrial wastewater is used for waste water treatment, improves nocuousness
Substance removal rate reduces resource consumption, improves circular economy, is without secondary pollution, has occupied area few (more raw than tradition
Change processing Economization on land 60-90%) the advantages that.
The application is connected to or is connected as through pipeline connection or connection.Existing any fluidisation can be selected in the application fluidizing agent
Medium, but preferred is Powdered Activated Carbon.
Powdered Activated Carbon and through apparatus for physical Chemical treating treated waste water respectively by fluidizing agent feed pump and wastewater feed
Pump is pumped into, and enters water distributor after mixing in mixing feeder；Air blower is blown successively through air sparger and micro-pore aeration
After device, finally the Powdered Activated Carbon in the form of microbubble to come out from water distributor provides power, and microbubble drives powder living
Property charcoal it is turbulent fluidised from bottom to top in fluidized bed, impurity is in powder electroless plating-oxidized waste water to playing purified water
Mesh.The material of fluidized-bed reactor body bottom portion is discharged by sewage draining exit, circulating purification.
Suction-operated: impurity in waste water through with after activated carbon effect, it is usually every since the specific surface area of active carbon is huge
Gram of about 1000 square metres or so, the impurity in waste water is tightly held by activated carbon, and active carbon is more apparent to the physical absorption of impurity, miscellaneous
Matter is attracted on these active surfaces, just completes the adsorption process of impurity, so that it is higher to obtain the impurity in waste water
Removal rate reaches the impurity purpose in removal waste water.Oxidation: this process is more complex, due to the pollution factor in waste water at
Thousand up to ten thousand kinds, mode of oxidizing is all kinds of.Applicant it has been investigated that: fluidisation power microbubble (air) in contain oxygen
(O2), oxygen is attracted on fluidizing agent Powdered Activated Carbon, and the diameter of the microbubble of micro-hole aerator makes up to micron order out
It obtains oxygen content in unit volume sharply to increase in fluidized-bed reactor, so that the impurity and oxygen that are adsorbed on fluidizing agent
Chemical oxidative decomposition reaction occurs, the difficult compound oxidation decomposed is made to be decomposed to form the compound, carbon dioxide and water of small molecule,
To reach the impurity purpose in removal waste water.
Applicant through research it has also been found that, under normal temperature and pressure, the saturated concentration of usual oxygen in water is 6-9mg/L water, one
As be 2-3mg/L water, and the same of useless impurities in water is adsorbed when Powdered Activated Carbon is contacted with useless water and air simultaneously, on active carbon
When, the oxygen in microbubble will be adsorbed on activated carbon surface simultaneously, when fluidizing agent mass concentration is 1-10% in water, inhale
Attached oxygen concentration is up to 1-12g/L water, and oxygen concentration has oxidisability than high thousand times of concentration or so in conventional water, and simultaneous oxidation is inhaled
It is attached on activated carbon surface, forms peroxide and hydroxy functional group, active surface is constituted together with other functional groups, preferably
Adsorb the impurity in water.
The three-phase fluid bed reactor that industrial wastewater is administered in the application absorption-oxidation is used for waste water treatment, it can be efficient
(80-96%) low cost operation, and qualified discharge.
When handling waste water, waste water can first level-one materializing strategy, level-one materializing strategy is using processing method conventional at present, such as
A variety of chemical methodes or the natures such as oil removing, acid-base neutralization, iron oxidation of coal reduction reaction/Fenton reagent oxidation reaction or chemistry Cheng Dian
(adding flocculant, flocculation aid etc.).
Waste water is pumped into the three-phase fluid bed reactor entrance that industrial wastewater is administered in absorption-oxidation after level-one materializing strategy
(mixing feeder), mixes with ciculation fluidized medium, fluidizing agent is Powdered Activated Carbon herein.The waste water in fluidized-bed reactor
In impurity (such as COD, heavy metal) and fluidizing agent Powdered Activated Carbon suction-operated and oxidation reaction occur act on, this two association
Same-action complete period in fluidizing agent fluid mapper process occurs.
Fluidized-bed reactor ontology inner top is equipped with overflow weir, and the periphery of overflow weir is equipped with overflow launder, the bottom of overflow launder
Equipped with outlet pipe, overflow weir is tooth form overflow weir.The processing water of fluidized bed is flowed out through tooth form overflow weir, and gravity flow enters sedimentation precipitating
Pond is separated by solid-liquid separation in sedimentation sedimentation basin, and the Powdered Activated Carbon of sedimentation precipitating bottom of pond portion sedimentation is extracted out by slush pump, in powder
When active carbon end is saturated up to absorption, it is recycled into fluidized bed and carries out the subsequent cycle period as described above.
In order to prolong the service life, fluidized-bed reactor body internal surface and overflow launder inner surface are equipped with erosion resistant coating.It is above-mentioned
Erosion resistant coating is preferably epoxy glass laminate layer.
In order to improve the utilization rate of fluidizing agent, gone back in fluidized-bed reactor ontology, between overflow weir and water distributor
Equipped with one layer or more of water redistributor.
The number of plies of water redistributor can be arranged according to bed height, it is preferable that water redistributor has 1-3 layers, adjacent two layers
Spacing between water redistributor is 2~3m；Water redistributor is network, and grid is the grid of 50 × 50mm；Water divides again
Cloth device is fixed in fluidized-bed reactor inner body wall by gusseted；On fluidized-bed reactor ontology and in first layer water
The lower edge of redistributor sets that there are two the visors that are oppositely arranged.To observe fluidized status in bed.It is preferred that visor is located at distance
Under one layer of water redistributor along 50 ± 5cm.First layer water redistributor is first layer several from bottom to top.
In order to improve stability in use, water distributor and air sparger are fixed by the bracket in fluidized-bed reactor ontology
It is interior.
In order to further increase treatment effeciency, water distributor is placed in right above micro-hole aerator at 30-50cm；Water distribution
Device is perforation structure, and aperture 5-12mm, aperture is vertically downward.Aperture is vertically downward namely aperture is opposite with micro-hole aerator, hole
The mixture that mouth comes out is moved upwards by the micropore carrying that micro-hole aerator comes out.
Position on fluidized-bed reactor ontology, apart from fluidized-bed reactor body bottom portion 80-120cm sets that there are two opposite
The manhole of setting.The setting of manhole facilitates maintenance；
Fluidized bed external form can want art according to place, can cylindrical type, also can rectangle.It is preferably cylindrical, d=2-30m；D=d
+ (20~30) × 2cm；H=4-12m, wherein d is the adsorbing-oxidising three-phase fluid bed reactor outer diameter for administering industrial wastewater, D
For overflow launder outer diameter, H is that the adsorbing-oxidising three-phase fluid bed reactor for administering industrial wastewater is always high.
It is above-mentioned it is adsorbing-oxidising administer industrial wastewater three-phase fluid bed reactor, can be set as needed pipe-line system and
All kinds of punishment in advance pumps, valve, flange, support etc..
The unmentioned technology of the present invention is referring to the prior art.
The three-phase fluid bed reactor of industrial wastewater is administered in absorption of the present invention-oxidation, is used for waste water treatment, is improved nocuousness
Substance removal rate reduces resource consumption, improves circular economy, is without secondary pollution, has occupied area few (more raw than tradition
Change processing Economization on land 60-90%) the advantages that.
Detailed description of the invention
Fig. 1 is the adsorbing-oxidising three-phase fluid bed reactor structural schematic diagram for administering industrial wastewater of the present invention.
Fig. 2 is air sparger structural schematic diagram；
Fig. 3 is air sparger and micro-hole aerator structural schematic diagram.
In figure, 4. fluidizing agent of erosion resistant coating (active carbon) feed pump 5. is useless in 1. outlet pipe, 2. fluidized-bed reactor 3.
Water feed pump 6. mixes basic 10. overflow tank body, 11. overflow weir 12. of 7. water distributor of feeder, 8. sewage pipe 9. and overflows
17. manhole of chute 13. Powdered Activated Carbon, 14. gusseted, 15. water redistributor, 16. visor, 18. air sparger
19. 20 bracket of air aeration device, 21. air blower, 22. air distribution hole.
Specific embodiment
For a better understanding of the present invention, below with reference to the embodiment content that the present invention is furture elucidated, but it is of the invention
Content is not limited solely to the following examples.
Embodiment 1
The three-phase fluid bed reactor of adsorbing-oxidising improvement industrial wastewater as shown in the figure, comprising: fluidized-bed reactor sheet
Body, Powdered Activated Carbon charge pump, wastewater feed pump, mixing feeder, water distributor, air blower, air sparger and micropore expose
Gas device；
Successively sequential communication, micro-hole aerator are located at air sparger for air blower, air sparger and micro-hole aerator
Surface, air sparger and micro-hole aerator are arranged in fluidized-bed reactor ontology, and air blower is located at fluidized-bed reaction
Device sheet is external；
Wastewater feed pump and Powdered Activated Carbon charge pump are imported by pipeline mixes feeder, mixes feeder and water distribution
Device connection, water distributor are located at the surface in fluidized-bed reactor ontology and being located at micro-hole aerator；Water distributor and air
Distributor is fixed by the bracket in fluidized-bed reactor ontology；
Water distributor is placed in right above micro-hole aerator at 35cm；Water distributor is perforation structure, aperture 8mm, aperture
Vertically downward；Position on fluidized-bed reactor ontology, apart from fluidized-bed reactor body bottom portion 100cm is set to be set there are two opposite
The manhole set；
Fluidized-bed reactor body bottom portion is equipped with sewage draining exit, and sewage draining exit is located at below air sparger；
Fluidized-bed reactor ontology inner top is equipped with overflow weir, and the periphery of overflow weir is equipped with overflow launder, the bottom of overflow launder
Equipped with outlet pipe, overflow weir is tooth form overflow weir；
Two layers of water redistributor, adjacent two layers are additionally provided in fluidized-bed reactor ontology, between overflow weir and water distributor
Spacing between water redistributor is 2.5m, and water redistributor is network, and grid is the grid of 50mm × 50mm；Water divides again
Cloth device is fixed in fluidized-bed reactor inner body wall by gusseted；On fluidized-bed reactor ontology, apart from first layer water
The visor being oppositely arranged there are two being set under redistributor along 50cm.
Fluidized-bed reactor body internal surface and overflow launder inner surface are equipped with erosion resistant coating, and erosion resistant coating is epoxy glass laminate
Layer.
In use, the waste water after level-one materializing strategy enters the above-mentioned adsorbing-oxidising three-phase fluidization for administering industrial wastewater
Bed reactor:
Waste water is pumped into the flow-like that mixing feeder and Powdered Activated Carbon charge pump are pumped by wastewater feed and recycles powder
Active carbon mixing, carries out suction-operated herein, and the material for mixing feeder out enters water distributor and is uniformly distributed in fluidized bed
Water outlet；
Fluidisation dynamical system is provided by air blower.Into air blower, system enters fluidized-bed reactor bottom to air by the road,
Into air sparger, then even into several micro-hole aerators, the diameter of micro-hole aerator micropore air bubble is up to micro- out
Meter level, micropore air bubble are fluidized medium powder electroless plating, drive the active carbon fluidization of fluidizing agent powder, provide simultaneously
Oxidation reaction requisite oxygen；
COD in waste water carries out absorption and oxidation reaction with Powdered Activated Carbon from bottom to top in fluidized bed.Pass through waste water
Certain mean hydraulic residence time (0.5-3 hours) in fluidized bed reactor ontology, the COD in waste water are adsorbed and aoxidize, reach
To the purpose of removal impurities in water；
After fluidized-bed reactor is handled, mixed sample is flowed out waste water by fluidized-bed reactor body upper part overflow weir, from
Stream enters sedimentation sedimentation basin, carries out solid- liquid separation in sedimentation sedimentation basin, after certain sedimentation time, precipitates bottom of pond portion in sedimentation
Powdered Activated Carbon after settlement, is extracted out by slush pump, if Powdered Activated Carbon end passes through wastewater feed pump or activity up to when being saturated
Charcoal charge pump is recycled into fluidized-bed reactor ontology, carries out the subsequent cycle period as described above；If extracting powder out up to when being saturated
Active carbon carry out regeneration treatment, while by active carbon charge pump add with after the comparable regeneration of extracted amount Powdered Activated Carbon or
Fresh powder active carbon.
Embodiment 2
It is substantially the same manner as Example 1, except that: water distributor is placed in right above micro-hole aerator at 45cm；Water
Distributor is perforation structure, and aperture 10mm, aperture is vertically downward；On fluidized-bed reactor ontology, apart from fluidized-bed reactor sheet
The position of body bottom 110cm sets that there are two the manholes that are oppositely arranged.
Engineering Projects 1
1. a DYE PRODUCTION enterprise, raw material is numerous, complicated component, and the common feature of organic wastewater with high concentration is that raw water ingredient is multiple
Miscellaneous changeable, coloration is high, and generally < 0.15, biodegradability is poor by BOD/COD, and difficulty of governance is big, belongs to heavily contaminated waste water, especially contaminates
Material chroma in waste water is most difficult to administer.Day generates 1500 tons of waste water.Raw water is as shown in table 1:
1 influent waste water water quality of table
| Serial number | Title | Index |
| 1 | CODcr | ~800mg/L |
| 2 | NH3-N | ~200mg/L |
| 3 | SS | ~150mg/L |
| 4 | Coloration (extension rate method) | ~2000 |
2. it is a set of by present invention process facility, it was operated through ten months, does not replace fluidized bed powder active carbon.Only add nature
(such as regenerative process, which is carbonized and oxidizes away, generates CO for loss2) part.
After administering the three-phase fluid bed reactor processing of industrial wastewater using the absorption in embodiment 1-oxidation, each processing is single
The treatment effect analysis of member is shown in Table table 2, and apparatus for physical Chemical treating includes the collecting-tank being connected in order, conditioning tank, neutralization pond, reaction tank
And clarifying basin, clarifying basin connect with the three-phase fluid bed reactor that industrial wastewater is administered in absorption-oxidation.
Water quality after the processing of each device of table 2
3. treated waste water quality≤65mg/m3, meet " integrated wastewater discharge standard " GB8978-1996, in waste water
The three-phase fluid bed reactor COD average removal rate that industrial wastewater is administered in absorption of the present invention-oxidation is 91.8%.
Claims (8)
1. a kind of adsorbing-oxidising three-phase fluid bed reactor for administering industrial wastewater, it is characterised in that: include: fluidized-bed reaction
Device ontology, Powdered Activated Carbon charge pump, wastewater feed pump, mixing feeder, water distributor, air blower, air sparger and micro-
Hole aerator；
Air blower, air sparger and micro-hole aerator successively sequential communication, micro-hole aerator be located at air sparger just on
Side, air sparger and micro-hole aerator are arranged in fluidized-bed reactor ontology, and air blower is located at fluidized-bed reactor sheet
In vitro；
Wastewater feed pump and Powdered Activated Carbon charge pump are imported by pipeline mixes feeder, and mixing feeder and water distributor connect
Logical, water distributor is located at the surface in fluidized-bed reactor ontology and being located at micro-hole aerator；
Fluidized-bed reactor body bottom portion is equipped with sewage draining exit, and sewage draining exit is located at below air sparger；
One layer or more of water redistributor is being additionally provided in fluidized-bed reactor ontology, between overflow weir and water distributor；
Water distributor and air sparger are fixed by the bracket in fluidized-bed reactor ontology.
2. the adsorbing-oxidising three-phase fluid bed reactor for administering industrial wastewater according to claim 1, it is characterised in that:
Fluidized-bed reactor ontology inner top is equipped with overflow weir, and the periphery of overflow weir is equipped with overflow launder, and the bottom of overflow launder is equipped with water outlet
Pipe, overflow weir are tooth form overflow weir.
3. the adsorbing-oxidising three-phase fluid bed reactor for administering industrial wastewater according to claim 2, it is characterised in that:
Fluidized-bed reactor body internal surface and overflow launder inner surface are equipped with erosion resistant coating.
4. the adsorbing-oxidising three-phase fluid bed reactor for administering industrial wastewater according to claim 2, it is characterised in that:
Erosion resistant coating is epoxy glass laminate layer.
5. the adsorbing-oxidising three-phase fluid bed reactor for administering industrial wastewater according to claim 1, it is characterised in that:
Water redistributor has 1-3 layers, and the spacing between adjacent two layers water redistributor is 2~3m；Water redistributor is network, net
Lattice are the grid of 50mm × 50mm；Water redistributor is fixed in fluidized-bed reactor inner body wall by gusseted；Fluidisation
The visor being oppositely arranged there are two being set on bed reactor body and in the lower edge of first layer water redistributor.
6. the adsorbing-oxidising three-phase fluid bed reactor for administering industrial wastewater according to claim 5, it is characterised in that:
Visor is located under first layer water redistributor along 50 ± 5cm.
7. the adsorbing-oxidising three-phase fluid bed reactor for administering industrial wastewater according to any one of claims 1-4,
Be characterized in that: water distributor is placed in right above micro-hole aerator at 30-50cm；Water distributor is perforation structure, aperture 5-
12mm, aperture is vertically downward；Position on fluidized-bed reactor ontology, apart from fluidized-bed reactor body bottom portion 80-120cm is set
There are two the manholes being oppositely arranged.
8. the three-phase fluid bed reactor of adsorbing-oxidising improvement industrial wastewater according to claim 2-4 any one,
It is characterized in that: d=2~30m；D=d+ (20~30) × 2cm；H=4~12m, wherein d is adsorbing-oxidising improvement industrial wastewater
Three-phase fluid bed reactor outer diameter, D be overflow launder outer diameter, H be it is adsorbing-oxidising administer industrial wastewater three phase fluidized bed reaction
Device is always high.
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| CN201610428599.8A CN105858793B (en) | 2016-06-15 | 2016-06-15 | A kind of adsorbing-oxidising three-phase fluid bed reactor for administering industrial wastewater |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60212292A (en) * | 1984-04-06 | 1985-10-24 | Shinko Fuaudoraa Kk | Apparatus for high degree treatment of sewage |
| CN1884125A (en) * | 2006-07-11 | 2006-12-27 | 浙江大学 | Device for treating organic wastewater by ozone and active carbon and method therefor |
| CN101333031A (en) * | 2008-05-20 | 2008-12-31 | 北京能拓高科技有限公司 | Aerobic biological fluidized bed using standard box |
| CN205676181U (en) * | 2016-06-15 | 2016-11-09 | 许征 | A kind of adsorption and oxidation administers the three-phase fluid bed reactor of industrial wastewater |
-
2016
- 2016-06-15 CN CN201610428599.8A patent/CN105858793B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60212292A (en) * | 1984-04-06 | 1985-10-24 | Shinko Fuaudoraa Kk | Apparatus for high degree treatment of sewage |
| CN1884125A (en) * | 2006-07-11 | 2006-12-27 | 浙江大学 | Device for treating organic wastewater by ozone and active carbon and method therefor |
| CN101333031A (en) * | 2008-05-20 | 2008-12-31 | 北京能拓高科技有限公司 | Aerobic biological fluidized bed using standard box |
| CN205676181U (en) * | 2016-06-15 | 2016-11-09 | 许征 | A kind of adsorption and oxidation administers the three-phase fluid bed reactor of industrial wastewater |
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Effective date of registration: 20190710 Address after: 210018 National University Science Park, Southeast University, No. 6 Changjiang Houjie, Xuanwu District, Nanjing, Jiangsu Province Patentee after: Jiangsu TLDL Environmental Equipment Co., Ltd. Address before: 210018 National University Science Park, Southeast University, No. 6 Changjiang Houjie, Xuanwu District, Nanjing, Jiangsu Province Co-patentee before: Jiangsu TLDL Environmental Equipment Co., Ltd. Patentee before: Xu Zheng |
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