CN109569265A - Exhaust gas and wastewater treatment equipment - Google Patents
Exhaust gas and wastewater treatment equipment Download PDFInfo
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- CN109569265A CN109569265A CN201710898674.1A CN201710898674A CN109569265A CN 109569265 A CN109569265 A CN 109569265A CN 201710898674 A CN201710898674 A CN 201710898674A CN 109569265 A CN109569265 A CN 109569265A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/84—Biological processes
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Treating Waste Gases (AREA)
Abstract
The present invention relates to exhaust gas and wastewater treatment, disclose exhaust gas and wastewater treatment equipment, and the processing unit includes exhaust-gas treatment reactor (1) and waste water treatment reactor (2)；The exhaust-gas treatment reactor (1) includes the first conversion zone (I), the second conversion zone (II) and third conversion zone (III), the flow area of first conversion zone (I) is greater than the flow area of third conversion zone (III), and the flow area of the second conversion zone (II) is to be gradually reduced by the first conversion zone (I) to third conversion zone (III)；The exhaust-gas treatment reactor (1) is additionally provided with exhaust gas inlet (10) and water inlet (11)；The processing unit further includes lower filtrate pipe (3), for BAF filtrate to be imported in exhaust-gas treatment reactor (1) from waste water treatment reactor (2), and upper filtrate pipe (4), for BAF filtrate to be recycled back in waste water treatment reactor (2) from exhaust-gas treatment reactor (1).Processing unit provided by the invention can combine wastewater treatment and exhaust-gas treatment, and the processing of waste water and exhaust gas is realized on a set of BAF device.
Description
Technical field
The present invention relates to exhaust gas and field of waste water treatment, and in particular to a kind of exhaust gas and wastewater treatment equipment.
Background technique
Biological aerated filter (Biological Aerated Filter) abbreviation BAF is to develop in America and Europe the end of the eighties
A kind of New biological membrane method sewage treatment process come.The technique has removal SS, COD, BOD, nitrification, denitrogenation, dephosphorization, removal
The effect of AOX (harmful substance) saves post precipitation pond its main feature is that integrating biological oxidation and retention suspended solid
(secondary settling tank), volumetric loading, hydraulic loading are big, and hydraulic detention time is short, and required capital expenditure is few, and effluent quality is good, operation
Low energy consumption, economic operating cost.
Biological aerated filter (biologicalaeratedfilter) has organic negative compared with conventional activated sludge process
Lotus height, small investment (saving 30%), will not generate sludge bulking, oxygen biography at occupied area small (being the 1/3 of conventional activated sludge process)
The advantages that defeated high-efficient, effluent quality is good.
Due to many advantages that biological aerated filter has, extensive research and concern are obtained, such as: CN201358204Y
It is related to a kind of EM-BAF processing unit of oil refining sewerage advanced treating, which has tolerance pollutant concentration variation impact,
Microbial load amount is high, produces the few advantage of mud.But in actual application process, when higher there are the concentration for the treatment of waste water of BAF
Required backwash water is larger, head loss also biggish defect.
Industrial enterprise's exhaust gas usually includes the volatile organic compounds such as hydrocarbons (VOCs) and hydrogen sulfide, organic
The foul gas such as sulphur, ammonia.Foul gas is also bigger to the injury of human body other than making people's sense organ uncomfortable.And volatility has
Machine compound (VOCs) refers to that saturated vapor pressure is approximately more than 70Pa at normal temperature, and boiling point is lower than 250 DEG C of organic compound under normal pressure
Object.It is the most common pollutant of petrochemical industry discharge including alkane, aromatic hydrocarbons, alkene, alcohols, ethers etc., has to environment
Huge destruction.
With the continuous improvement of Public environmental attitude and increasingly stringent, the environmental pollution caused by exhaust gas of environmental emission standard
Problem is increasingly valued by people.For protection staff health, improve air quality, it is necessary to industrial enterprise
Exhaust gas effectively administered.
Currently, focus mostly on the treatment research of exhaust gas in biological treatment, adsorption treatment and catalysis burning processing etc.,
Middle biologic treating technique mainly uses biologic packing material technology.
Such as: CN1745883A discloses a kind of odor pollution administering odor pollution especially petrifaction sewage Treatment stations and distributing
Method and low-concentration organic exhaust gas purification method, this method use immobilized microorganism film filler, using 1-3 grades of micro- lifes
Object processing, can be pre-processed with wet dedusting tower before microbiological treatment, can be carried out with adsorbent after microbiological treatment
Advanced treating.Compared with prior art, this method is with operating cost is low, purifying rate is high, operating is stable, impact resistance, operating week
The advantages that phase is long.But this method, which can only handle exhaust gas, cannot handle waste water.
The prior art is typically only capable to individually handle waste water or exhaust gas, and it is long that there is process flows, the skill taken up a large area
Art defect, and there is the technological deficiency for needing timing backwash in existing BAF technology, it is therefore necessary to develop a kind of operation letter
The Integrated Processing Unit of single waste water and exhaust gas.
Summary of the invention
The purpose of the invention is to overcome defect in the prior art, exhaust gas and waste water can be handled simultaneously by providing one kind
And the processing unit of backwash is not needed.
To achieve the goals above, the present invention provides a kind of exhaust gas and wastewater treatment equipments, wherein the processing unit
Including exhaust-gas treatment reactor and waste water treatment reactor；
The exhaust-gas treatment reactor includes: the first conversion zone, the second conversion zone and third conversion zone from top to bottom, described
The flow area of first conversion zone is greater than the flow area of third conversion zone, and second conversion zone is the first conversion zone and third
Transient response section between conversion zone, and the flow area of second conversion zone be by the first conversion zone to third conversion zone gradually
Reduce；The exhaust-gas treatment reactor is additionally provided with the exhaust gas inlet being connected to respectively with third conversion zone and water inlet；
The waste water treatment reactor is BAF reactor；
The processing unit further includes lower filtrate pipe, for BAF filtrate to be imported exhaust-gas treatment from waste water treatment reactor
Exhaust-gas treatment and upper filtrate pipe are carried out in reactor, for after exhaust-gas treatment, by BAF filtrate from exhaust-gas treatment reactor
It is recycled back in waste water treatment reactor.
Processing unit provided by the invention can combine wastewater treatment and exhaust-gas treatment, fill in a set of BAF
Set the processing for realizing waste water and exhaust gas.BAF filtrate during processing, is able to carry out and circulates, and avoids hardened.It is useless
Under the washing away of gas and water flow, the aging microbial film on filtrate can fall off gas disposal reactor lower part, avoid BAF's
Timing backwashes, conducive to the promotion of device continuous operation and treatment effect.
Detailed description of the invention
Fig. 1 is a kind of exhaust gas of specific embodiment of the present invention and the schematic diagram of wastewater treatment equipment.
Description of symbols
1 exhaust processor, 2 waste water treater
Filtrate pipe on 3 lower filtrate pipes 4
5 waste water inlet, 6 air inlet
7 second aerator, 8 second water outlet
9 second gas outlet, 10 exhaust gas inlet
11 water inlet, 12 first gas outlet
13 first water outlet, 14 first aerator
15 BAF filtrates
I first conversion zones, II second conversion zone
III third conversion zone
Specific embodiment
The endpoint of disclosed range and any value are not limited to the accurate range or value herein, these ranges or
Value should be understood as comprising the value close to these ranges or value.For numberical range, between the endpoint value of each range, respectively
It can be combined with each other between the endpoint value of a range and individual point value, and individually between point value and obtain one or more
New numberical range, these numberical ranges should be considered as specific open herein.
In the present invention, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower " is typically referred to along anti-
It answers upper and lower in device short transverse.
According to the present invention, as shown in Figure 1, the exhaust gas and wastewater treatment equipment include exhaust-gas treatment reactor 1 and waste water
Treatment reactor 2；
Wherein, the exhaust-gas treatment reactor 1 includes: that the first conversion zone I, the second conversion zone II and third are anti-from top to bottom
Section III is answered, the flow area of first conversion zone I is greater than the flow area of third conversion zone III, and second conversion zone II is
Transient response section between first conversion zone I and third conversion zone III, and the flow area of second conversion zone II is by first
Conversion zone I is gradually reduced to third conversion zone III；The exhaust-gas treatment reactor 1 is additionally provided with to be connected with third conversion zone III respectively
Logical exhaust gas inlet 10 and water inlet 11；
The waste water treatment reactor 2 is BAF reactor；
The processing unit further includes lower filtrate pipe 3, for importing from exhaust gas BAF filtrate from waste water treatment reactor 2
Exhaust-gas treatment and upper filtrate pipe 4 are carried out in reason reactor 1, is used for after exhaust-gas treatment, BAF filtrate is anti-from exhaust-gas treatment
Device 1 is answered to be recycled back in waste water treatment reactor 2.
A kind of specific embodiment according to the present invention, from being more conducive to import BAF filtrate from waste water treatment reactor 2
From the point of view of carrying out exhaust-gas treatment in exhaust-gas treatment reactor 1, the position of the discharge end of the lower filtrate pipe 3 is higher than its charging
The position at end.Further preferably, from order to guarantee that BAF filtrate is enabled smoothly to be imported exhaust-gas treatment under pressure
From the point of view of in reactor 1, the discharge end of the lower filtrate pipe 3 is located at the lower part of waste water treatment reactor 2, more preferably with it is useless
The vertical range of 2 bottom of water processing reactor is 2-200mm, from order to guarantee that BAF filtrate can be in exhaust-gas treatment reactor 1
Under the washing away of air inlet and water inlet, from the point of view of being easy to make the aging microbial film on BAF filtrate to fall off, the lower filtrate pipe 3
Feed end be located at the exhaust-gas treatment reactor 1 third conversion zone III lower part, more preferably with 1 bottom of exhaust-gas treatment reactor
The vertical range in portion is 2-200mm.
A kind of specific embodiment according to the present invention, from being more conducive to after exhaust-gas treatment, by BAF filtrate from exhaust-gas treatment
From the point of view of reactor 1 is recycled back in waste water treatment reactor 2, the position of the discharge end of the upper filtrate pipe 4 be higher than its into
Expect the position at end.Further preferably, for ease of returning to BAF filtrate in waste water treatment reactor 2, the upper filtrate pipe 4
Discharge end is located at the second conversion zone II and/or third conversion zone III of the exhaust-gas treatment reactor 1, is more preferably located at described useless
The third conversion zone III of gas disposal reactor 1, and the height for being located at the filter material layer on the discharge end of upper filtrate pipe 4 is at least
5mm, preferably 5-100mm, in order to guarantee that filter material layer has certain height, the upper filtrate pipe 4 in waste water treatment reactor 2
Feed end be located at the top of waste water treatment reactor 2, more preferably the vertical range with 2 top of waste water treatment reactor is 10-
500mm。
Further, in order to guarantee that BAF filtrate can recycle in waste water treatment reactor 2 and exhaust-gas treatment reactor 1
It flowing, under preferable case, the bottom of the waste water treatment reactor 2 is higher than the bottom of exhaust-gas treatment reactor 1 in the present invention,
The top of waste water treatment reactor 2 is lower than the top of exhaust-gas treatment reactor 1.
In the case of, according to the invention it is preferred to, in order to which goal of the invention of the invention, the exhaust-gas treatment reaction is better achieved
First conversion zone I of device 1 be it is cylindric, the diameter height of first conversion zone I compares for 0.1-5:1, first conversion zone I
Height is the 3-30% of the vertical range of 1 distance from top reactor bottom of exhaust-gas treatment reactor；
Second conversion zone II is reverse frustoconic, and the cross-sectional area of II upper end of the second conversion zone is reacted with described first
The cross-sectional area of section I is equal, the cross-sectional area phase of the cross-sectional area of II lower end of the second conversion zone and the third conversion zone III
Height Deng, second conversion zone II is the 3- of the vertical range of 1 distance from top reactor bottom of exhaust-gas treatment reactor
30%；
Third conversion zone III be it is cylindric, the diameter height of the third conversion zone III compares for 0.02-0.5:1, the third reaction
The height of section III is the 40-94% of the vertical range of 1 distance from top reactor bottom of exhaust-gas treatment reactor.
In the third conversion zone III of the exhaust-gas treatment reactor 1, BAF filtrate is upward under the action of exhaust gas and waste water
Suspension bed state is flowed into, and BAF filtrate, under the washing away of gas and water flow, the aging microbial film on filtrate can take off
It falls, avoids the timing backwash of BAF, and continue to flow to the second conversion zone II and the first conversion zone I, with flow area
It is gradually increased (diameter of preferably conversion zone is gradually increased), water flow and gas velocity slow down, and BAF filtrate is gradually in fixed bed state,
Part BAF filtrate returns to the top of waste water treatment reactor 2 from upper filtrate pipe 4.Therefore, the flow area of third conversion zone III
Less than the flow area of the first conversion zone I, the flow area of the second conversion zone II is by the first conversion zone I to third conversion zone III
It is gradually reduced, to guarantee that BAF filtrate is gradually transitions fixed bed state from suspension bed state.
Further preferably, from be further ensured that BAF filtrate third conversion zone III it is abundant flushing and exhaust-gas treatment effect
Fruit, and guarantee that BAF filtrate gradually forms fixed bed state in the first conversion zone I and/or the second conversion zone II, the third is anti-
Answering the diameter ratio of section III and first conversion zone I is 1:1.5-100, more preferably 1:3-10.
A kind of specific embodiment according to the present invention, from the point of view of convenient for conveying BAF filtrate, the lower filtrate pipe
3 and upper filtrate pipe 4 be round tube, the waste water treatment reactor 2 is cylinder BAF reactor, and ontology is cylindrical body, preferably feelings
Under condition, imports in exhaust-gas treatment reactor 1, can either guarantee from waste water treatment reactor 2 from the BAF filtrate for ensuring appropriate amount
Waste water is effectively treated in waste water treatment reactor 2, but can guarantee section BAF filler be admitted in waste gas reaction device 1 and carry out
Exhaust gas is effectively treated, and is completed at the same time the flushing of filtrate, the diameter and the waste water treatment reactor 2 of the lower filtrate pipe 3
Diameter ratio be 0.01-0.5:1；The diameter of the upper filtrate pipe 4 and the diameter ratio of the waste water treatment reactor 2 are 0.01-
0.5:1。
Under preferable case, in order to guarantee in exhaust-gas treatment reactor 1, the exhaust gas of entrance and water inlet can be stirred sufficiently
BAF filtrate, is rinsed filtrate, and 1 bottom of exhaust-gas treatment reactor described in the positional distance that the water inlet 11 is arranged is hung down
Straight distance is 5-50mm.Further, the exhaust-gas treatment reactor 1 is additionally provided with the first outlet positioned at the first conversion zone I
Mouth 12 and the first water outlet 13, it is preferable that for the ease of being discharged after gas after discharge processing and processing, first gas outlet 12 is set
Set on the top and/or top of reactor, first water outlet 13 be arranged in the first conversion zone I of reactor top and/
Or top.The exhaust-gas treatment reactor 1 is additionally provided with the first aerator 14, for being uniformly distributed to exhaust gas to be processed
Enter the treatment reactor afterwards, the bottom of reactor is arranged in first aerator 14, and the exhaust gas inlet 10 passes through
First aerator 14 is connected to exhaust-gas treatment reactor 1.
According to the present invention, the waste water treatment reactor 2 is BAF barrel reactor.In addition to BAF filtrate of the present invention
Other the conventional structure and functions for recycling the BAF reactor except related filtrate pipe and other dependency structures are this
Well known to the technical staff of field.
According to the present invention, further, the waste water treatment reactor 2 is additionally provided with waste water inlet 5, the second aerator
7 and air intlet 6, the lower part of reactor is arranged in the waste water inlet 5, and the second aerator 7 and air intlet 6 are arranged anti-
Answer the bottom of device, and the air intlet 6 is connected to by the second aerator 7 with waste water treatment reactor 2, in order to give up
The air of water contact enters the treatment reactor after being uniformly distributed.The waste water treatment reactor 2 is additionally provided with second and goes out
The mouth of a river 8 and the second gas outlet 9, for the ease of the gas of treated waste water and generation is discharged, the setting of the second water outlet 8 exists
The top and/or top of reactor is arranged in the top and/or top of reactor, second gas outlet 9.
A kind of specific embodiment according to the present invention, under preferable case, after exhaust-gas treatment, it is also possible to return and generate part
Waste water, in order to further ensure treatment effect and environmental-friendly demand, the first water outlet 13 of exhaust-gas treatment reactor 1
It is connected with the waste water inlet 5 of waste water treatment reactor 2, the waste water that exhaust-gas treatment reactor 1 is generated is sent into wastewater treatment
Circular treatment is carried out in reactor 2.In order to further ensure the cycling and reutilization of water, the second water outlet of waste water treatment reactor 2
Mouth 8 is connected with the water inlet 11 of exhaust-gas treatment reactor 1, and the water after wastewater treatment is introduced into exhaust-gas treatment reactor 1
It recycles.
A kind of specific embodiment according to the present invention, after wastewater treatment, it is also possible to portion can be generated, in order into
One step guarantees treatment effect, and under preferable case, the second gas outlet 9 of waste water treatment reactor 2 is useless with exhaust-gas treatment reactor 1
Gas import 10 is connected, and the exhaust gas that waste water treatment reactor 2 generates is sent into exhaust-gas treatment reactor 1 and is carried out at circulation
Reason.
A kind of specific embodiment according to the present invention, the exhaust gas generated for the ease of two reactors can be drawn together
It out or is reprocessed, the second outlet of the first gas outlet 12 and waste water treatment reactor 2 of the exhaust-gas treatment reactor 1
Mouth 9 is connected.
Further preferably, it is filled with BAF filtrate 15 in exhaust-gas treatment reactor 1 and waste water treatment reactor 2, with more preferable
The flow circuit state of ground guarantee filtrate.
A specific embodiment of the invention is described in further details below with reference to Fig. 1.
Waste water to be processed enters waste water treatment reactor 2 from waste water inlet 5, and air passes through aeration dress from air intlet 6
It sets 7 to be passed into waste water treatment reactor 2, the life on fixation BAF filtrate 15 in waste water and air and waste water treatment reactor 2
Object film carries out aerobic reaction, removes the COD in water removal, is discharged after the pollutants such as ammonia nitrogen from the second water outlet 8.Waste water treatment reactor
The part BAF filtrate 15 of 2 bottoms enters the bottom of waste gas reaction device 1 by lower filtrate pipe 3.It is preferred that the wastewater treatment is anti-
The second water outlet 8 of device 2 is answered to be connected with the water inlet 11 of exhaust-gas treatment reactor 1；The second of the waste water treatment reactor 2
Gas outlet 9 is connected with the exhaust gas inlet of exhaust-gas treatment reactor 1；The water outlet 13 and waste water of the exhaust-gas treatment reactor 1
The waste water inlet 5 for the treatment of reactor 2 is connected.
Exhaust gas to be processed and the exhaust gas being discharged by the second gas outlet 9 of 2 top of waste water treatment reactor by exhaust gas into
Mouthfuls 10 be distributed by the first aerator 14 after enter exhaust-gas treatment reactor 1, the water outlet being discharged by waste water treatment reactor 2 from
Water inlet 11 enters exhaust-gas treatment reactor 1.In the lower part third conversion zone III of exhaust-gas treatment reactor 1, BAF filtrate is in exhaust gas
With suspension bed state is flowed up under the action of waste water, on the top of reactor, by second the II to the first conversion zone of conversion zone
I, with the increase of reactor diameter, water flow and gas velocity slow down, and BAF filtrate is in fixed bed state, and part BAF filtrate is from upper filtrate
Pipe 4 returns to the top of waste water reactor 2.Harmful substance is by after the biofilm breakup on BAF filtrate in exhaust gas, and exhaust gas is from exhaust gas
It draws first gas outlet 12 for the treatment of reactor 1.The waste water being discharged from exhaust-gas treatment reactor 1 is discharged from the first water outlet 13
It mixes with waste water to be processed, is entered in waste water treatment reactor 2 by waste water inlet 5 again.
The present invention combines wastewater treatment and exhaust-gas treatment, can be realized on a set of BAF device waste water and
The processing of exhaust gas.BAF filtrate during processing, is able to carry out and circulates, avoid it is hardened, in exhaust-gas treatment reactor 1
Under the washing away of gas and water flow, the aging microbial film on filtrate can fall off for lower part, avoid the timing backwash of BAF,
Conducive to the promotion of device continuous operation and treatment effect.
The present invention will be described in detail by way of examples below.
In following embodiments, certain petrochemical plant waste water COD is 120-250mg/L, and hydrogen sulfide content is in certain petrochemical plant exhaust gas
5-28mg/m3, ammonia content 15-95mg/m3, benzene content 8-45mg/m3, toluene level 23-91mg/m3, non-methane total hydrocarbons
Content is 187-478mg/m3。
In following embodiments, used BAF filtrate is ball-type carbon leaching material, and the diameter of filtrate is that 3-5mm (is purchased from section
Ring environment company).
Embodiment 1
As shown in Figure 1, handling certain petrochemical plant waste water and exhaust gas using the exhaust gas and wastewater treatment equipment.
The diameter of 1 middle and lower part third conversion zone III of exhaust-gas treatment reactor is 100mm, and a height of 1.5m, the second of transition is instead
A height of 300mm of section II is answered, it is highly 200mm that the diameter of the first conversion zone I, which is 500mm, and the volume space velocity of exhaust gas is 200h-1,
Gas-water ratio is 100:1.The vertical range of 1 bottom of exhaust-gas treatment reactor described in the positional distance that the water inlet 11 is arranged is
5mm。
Waste water treatment reactor 2 is that diameter is 300mm, the BAF barrel reactor of high 1m.In waste water treatment reactor 2, give up
The residence time of water is 20 hours, gas-water ratio 3:1.
The exhaust gas and wastewater treatment equipment further include upper filtrate pipe 4 and lower filtrate pipe 3.
The upper filtrate pipe 4 is round tube, diameter 10mm.The position of the discharge end of the upper filtrate pipe 4 is higher than its charging
The position at end.The discharge end of the upper filtrate pipe 4 be located at the exhaust-gas treatment reactor 1 third conversion zone III (and guarantee open
After beginning cycle operation positioned at upper filtrate pipe 4 discharge end on filter material layer height be 100mm), the upper filtrate pipe 4 into
Material end is located at the top of waste water treatment reactor 2, and the vertical range with 2 top of waste water treatment reactor is 150mm.
Lower filtrate pipe 3 is round tube, diameter 10mm.The position of the discharge end of the lower filtrate pipe 3 is higher than its feed end
Position.The discharge end of the lower filtrate pipe 3 is located at the lower part of waste water treatment reactor 2, with hanging down for 2 bottom of waste water treatment reactor
Straight distance is 50mm, and the feed end of the lower filtrate pipe 3 is located under the third conversion zone III of the exhaust-gas treatment reactor 1
Portion, the vertical range with 1 bottom of exhaust-gas treatment reactor is 50mm, and the bottom of waste water treatment reactor 2 is higher than exhaust-gas treatment
The bottom of reactor 1, the top of waste water treatment reactor 2 are lower than the top of exhaust-gas treatment reactor 1.
The filling height of BAF filtrate is 845mm in waste water treatment reactor 2.
Waste water to be processed enters waste water treatment reactor 2 from waste water inlet 5, and air passes through aeration dress from air intlet 6
It sets 7 to be passed into waste water treatment reactor 2, the life on fixation BAF filtrate 15 in waste water and air and waste water treatment reactor 2
Object film carries out aerobic reaction, removes the COD in water removal, is discharged after the pollutants such as ammonia nitrogen from the second water outlet 8.Waste water treatment reactor
The part BAF filtrate 15 of 2 bottoms enters the bottom of waste gas reaction device 1 by lower filtrate pipe 3.The waste water treatment reactor 2
The second water outlet 8 be connected with the water inlet 11 of exhaust-gas treatment reactor 1；Second outlet of the waste water treatment reactor 2
Mouth 9 is connected with the exhaust gas inlet of exhaust-gas treatment reactor 1；The first water outlet 13 and waste water of the exhaust-gas treatment reactor 1
The waste water inlet 5 for the treatment of reactor 2 is connected.
Exhaust gas to be processed and the exhaust gas being discharged by the second gas outlet 9 of 2 top of waste water treatment reactor by exhaust gas into
Mouthfuls 10 be distributed by the first aerator 14 after enter exhaust-gas treatment reactor 1, the water outlet being discharged by waste water treatment reactor 2 from
Water inlet 11 enters exhaust-gas treatment reactor 1.In the lower part third conversion zone III of exhaust-gas treatment reactor 1, BAF filtrate is in exhaust gas
With suspension bed state is flowed up under the action of waste water, on the top of reactor, by second the II to the first conversion zone of conversion zone
I, with the increase of reactor diameter, water flow and gas velocity slow down, and BAF filtrate is in fixed bed state, and part BAF filtrate is from upper filtrate
Pipe 4 returns to the top of waste water reactor 2.Harmful substance is by after the biofilm breakup on BAF filtrate in exhaust gas, and exhaust gas is from exhaust gas
It draws first gas outlet 12 for the treatment of reactor 1.The waste water being discharged from exhaust-gas treatment reactor 1 is discharged from the first water outlet 13
It mixes with waste water to be processed, is entered in waste water treatment reactor 2 by waste water inlet 5 again.
The COD removal rate of processed waste water reaches 65%；The removal rate of ammonia reaches 98% in exhaust gas after processing, hydrogen sulfide
Removal rate reaches 95%.
Embodiment 2
Waste water and exhaust gas are handled according to the method for embodiment 1, unlike, the volume space velocity of exhaust gas is 500h-1, after processing
The removal rate of ammonia reaches 92% in exhaust gas, and the removal rate of hydrogen sulfide reaches 90%.
Embodiment 3
Waste water and exhaust gas are handled according to the method for embodiment 1, unlike, the residence time of waste water is 15 hours, processing
The COD removal rate of waste water reaches 60% afterwards.
The preferred embodiment of the present invention has been described above in detail, and still, the present invention is not limited thereto.In skill of the invention
In art conception range, can with various simple variants of the technical solution of the present invention are made, including each technical characteristic with it is any its
Its suitable method is combined, and it should also be regarded as the disclosure of the present invention for these simple variants and combination, is belonged to
Protection scope of the present invention.
Claims (10)
1. a kind of exhaust gas and wastewater treatment equipment, which is characterized in that the processing unit includes exhaust-gas treatment reactor (1) and gives up
Water processing reactor (2)；
The exhaust-gas treatment reactor (1) includes: the first conversion zone (I), the second conversion zone (II) and third reaction from top to bottom
Section (III), the flow area of first conversion zone (I) are greater than the flow area of third conversion zone (III), second conversion zone
(II) the transient response section between the first conversion zone (I) and third conversion zone (III), and second conversion zone (II) is through-flow
Area is to be gradually reduced by the first conversion zone (I) to third conversion zone (III)；The exhaust-gas treatment reactor (1) is additionally provided with point
The exhaust gas inlet (10) and water inlet (11) not being connected to third conversion zone (III)；
The waste water treatment reactor (2) is BAF reactor；
The processing unit further includes lower filtrate pipe (3), for importing from exhaust gas BAF filtrate from waste water treatment reactor (2)
It manages and carries out exhaust-gas treatment and upper filtrate pipe (4) in reactor (1), be used for after exhaust-gas treatment, by BAF filtrate from exhaust gas
Reason reactor (1) is recycled back in waste water treatment reactor (2).
2. exhaust gas according to claim 1 and wastewater treatment equipment, which is characterized in that
First conversion zone (I) be it is cylindric, the diameter height of first conversion zone (I) compares for 0.1-5:1, first conversion zone
(I) height is the 3-30% of the vertical range of exhaust-gas treatment reactor (1) distance from top reactor bottom；
Second conversion zone (II) is reverse frustoconic, and the cross-sectional area of the second conversion zone (II) upper end is reacted with described first
The cross-sectional area of section (I) is equal, and the cross-sectional area of the second conversion zone (II) lower end is transversal with the third conversion zone (III)
Area equation, the height of second conversion zone (II) are the vertical of exhaust-gas treatment reactor (1) distance from top reactor bottom
The 3-30% of distance；
Third conversion zone (III) be it is cylindric, the diameter height of the third conversion zone (III) compares for 0.02-0.5:1, the third reaction
The height of section (III) is the 40-94% of the vertical range of exhaust-gas treatment reactor (1) distance from top reactor bottom；
It is preferred that the diameter ratio of the third conversion zone (III) and first conversion zone (I) is 1:1.5-100, more preferably 1:
3-10。
3. exhaust gas according to claim 1 or 2 and wastewater treatment equipment, which is characterized in that
The position of the discharge end of the lower filtrate pipe (3) is higher than the position of its feed end；
Further preferably, the discharge end of the lower filtrate pipe (3) is located at the lower part of waste water treatment reactor (2), more preferably with it is useless
The vertical range of water processing reactor (2) bottom is 20-200mm, and the feed end of the lower filtrate pipe (3) is located at the exhaust gas
The lower part of the third conversion zone (III) of reactor (1) is managed, the more preferably vertical range with exhaust-gas treatment reactor (1) bottom is
20-200mm；
The position of the discharge end of the upper filtrate pipe (4) is higher than the position of its feed end；
Further preferably, the discharge end of the upper filtrate pipe (4) is located at the second conversion zone of the exhaust-gas treatment reactor (1)
(II) and/or third conversion zone (III) it, is more preferably located at the third conversion zone III of the exhaust-gas treatment reactor 1, and is located at upper
The height of filter material layer on the discharge end of filtrate pipe (4) is at least 5mm, preferably 5-100mm, the upper filtrate pipe (4)
Feed end is located at the top of waste water treatment reactor (2), is more preferably with the vertical range at the top of waste water treatment reactor (2)
10-500mm；
Further preferably, the bottom of waste water treatment reactor 2 is higher than the bottom of exhaust-gas treatment reactor 1, waste water treatment reactor 2
Top be lower than exhaust-gas treatment reactor 1 top.
4. exhaust gas according to claim 1 or 2 and wastewater treatment equipment, which is characterized in that lower filtrate pipe (3) and upper filtrate
Managing (4) is round tube, the waste water treatment reactor (2) be it is cylindric, at the diameter of the lower filtrate pipe (3) and the waste water
The diameter ratio for managing reactor (2) is 0.01-0.5:1；The diameter of the upper filtrate pipe (4) and the waste water treatment reactor (2)
Diameter ratio be 0.01-0.5:1.
5. exhaust gas according to claim 1 and wastewater treatment equipment, which is characterized in that the exhaust-gas treatment reactor (1)
It is additionally provided with the first gas outlet (12) positioned at the first conversion zone (I) and the first water outlet (13), it is preferable that first gas outlet
(12) top and/or top of reactor are set, and the first conversion zone (I) of reactor is arranged in first water outlet (13)
Top and/or top；
The exhaust-gas treatment reactor (1) is additionally provided with the first aerator (14), which is arranged anti-
The bottom of device is answered, and the exhaust gas inlet (10) is connected to by the first aerator (14) with exhaust-gas treatment reactor (1).
6. exhaust gas according to claim 1 and wastewater treatment equipment, which is characterized in that
The waste water treatment reactor (2) is additionally provided with waste water inlet (5), the second aerator (7) and air intlet (6), institute
The lower part that reactor is arranged in waste water inlet (5) is stated, the bottom of reactor is arranged in the second aerator (7) and air intlet (6)
Portion, and the air intlet (6) is connected to by the second aerator (7) with waste water treatment reactor (2)；
The waste water treatment reactor (2) is additionally provided with the second water outlet (8) and the second gas outlet (9), second water outlet
(8) top and/or top of reactor are set, and the top and/or top of reactor is arranged in second gas outlet (9).
7. exhaust gas according to claim 5 or 6 and wastewater treatment equipment, which is characterized in that exhaust-gas treatment reactor (1)
First water outlet (13) is connected with the waste water inlet (5) of waste water treatment reactor (2).
8. exhaust gas according to claim 5 or 6 and wastewater treatment equipment, which is characterized in that waste water treatment reactor (2)
Second water outlet (8) is connected with the water inlet (11) of exhaust-gas treatment reactor (1).
9. exhaust gas according to claim 5 or 6 and wastewater treatment equipment, which is characterized in that waste water treatment reactor (2)
Second gas outlet (9) is connected with the exhaust gas inlet (10) of exhaust-gas treatment reactor (1).
10. exhaust gas according to claim 1 and wastewater treatment equipment, which is characterized in that exhaust-gas treatment reactor (1) and useless
BAF filtrate (15) are filled in water processing reactor (2).
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