CN108862559A - A kind of micro- oxygen environment moving-bed biofilm reaction unit and the method using its processing coal gas wastewater - Google Patents
A kind of micro- oxygen environment moving-bed biofilm reaction unit and the method using its processing coal gas wastewater Download PDFInfo
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- CN108862559A CN108862559A CN201810822674.8A CN201810822674A CN108862559A CN 108862559 A CN108862559 A CN 108862559A CN 201810822674 A CN201810822674 A CN 201810822674A CN 108862559 A CN108862559 A CN 108862559A
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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
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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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
- C02F2101/345—Phenols
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
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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
Abstract
A kind of micro- oxygen environment moving-bed biofilm reaction unit and the method using its processing coal gas wastewater, it is related to a kind of water treatment facilities and the method using its processing coal gas wastewater.It is poor the invention aims to solve the pollutant effect that the device of existing processing coal gas wastewater removes in coal gas wastewater, the long problem with processing cost valuableness of hydraulic detention time.A kind of micro- oxygen environment moving-bed biofilm reaction unit includes pond body, two underwater impellers, multiple aeration heads, mud return line general pipeline, air pump, sedimentation basins, impeller fixed link, partition wall.Method：One, coal gas wastewater is entered in pond body by way of gravity stream drop from water inlet pipe and water inlet, opens underwater impeller；Two, air pump, the valve that aeration is in charge of and valve, electromagnetic pump on mud return line branch pipe are opened；Three, biofilm packing is added；Four, hydraulic retention.The present invention is suitable for processing coal gas wastewater.
Description
Technical field
The present invention relates to a kind of water treatment facilities and the methods for handling coal gas wastewater using it.
Background technique
The fossil resources feature in China's " rich coal, oil-poor, deficency " determines that China must develop Modern Coal-based Chemical industry.For
Reply petroleum, natural gas resource is insufficient and the status of its demand rapid growth, coal gas will rapidly become Modern Coal-based Chemical industry
One of leading industry, to make up the insufficient status of clean fuel.Country to the advocating of the high effect cleaning energy, develop oil replacement
It the demand of the energy and makes full use of low-grade coal resource and the requirement that reduces environmental pollution, is brought to modern coal gas industry development
Wide market.Therefore, into the coming few decades of cleaning new energy and renewable energy transition, modern coal gas industry
Important role will be played the part of.Coal Gasification Technology backwardness, high production cost, water resource and water pollution problems are always to restrict coal gas
The three major issues of industry development.Coal gas industry belongs to highly water intensive industry, and water demand amount is big, the wastewater treatment generated
Problem seriously restricts the development of coal gas industry.For the waste water based on high concentration gas washing wastewater, water quality is sufficiently complex, contains
There are the poisonous and harmful substances such as a large amount of phenols, long chain alkane class, arene, heterocyclic, ammonia nitrogen, cyanogen, is a kind of typical highly concentrated
Spend the industrial wastewater of difficult for biological degradation.Therefore, seek coal with low investment, that water treatment is good, technology stability is strong, operating cost is low
Gas waste water treatment process processed realizes water-saving, water-saving and reuse to the maximum extent, has become the urgent of coal gas industry development and be essential
It asks.
Biological wastewater treatment technology can be divided into Aerobic biological process technology and Anaerobic Microbiological Treatment Technology.Aerobic technical office
Manage that high-efficient, effluent quality is good, but should during energy consumption it is high, it is poor to the pollutant removal of difficult for biological degradation, using well
Oxygen technical treatment coal gas wastewater, in coal gas wastewater the removal rate of COD be 50%~60%, the removal rate of ammonia nitrogen be 45%~
50%, the removal rate of total nitrogen is 10%~15%, the removal rate of total phenol is 35%~40%, and the removal rate of volatile phenol concentration is
40%~45%；And it is big using the excess sludge production of aerobic technology.In comparison, low energy consumption for anaerobic technology, and can be effective
The organic matter that not can be removed in degradation aerobic process.However, the anaerobic technology starting time is long, and the residence time is long, uses anaerobism
The hydraulic detention time of technical treatment coal gas wastewater is 300h~350h, although aerobic/anaerobic group technology can be preferable
The removal effect of pollutant, but the difference due to requiring dissolved oxygen are improved, reaction needs to complete in different devices, not only
Engineering investment cost is high, and the complexity of process operation process and management difficulty increased.
Summary of the invention
The invention aims to solve the pollutant in the device removal coal gas wastewater of existing processing coal gas wastewater
Effect is poor, the long problem with processing cost valuableness of hydraulic detention time, and provides a kind of micro- oxygen environment moving bed biological film reaction
Device and the method for handling coal gas wastewater using it.
A kind of micro- oxygen environment moving-bed biofilm reaction unit includes pond body, two underwater impellers, multiple aeration heads, dirt
Mud return pipe general pipeline, air pump, sedimentation basin, impeller fixed link, the first partition wall, the second partition wall, third partition wall and the 4th partition wall；
Sedimentation basin and four partition walls are equipped in the pond body, and the outside of sedimentation basin is arranged in four partition walls；Described
Four partition walls are respectively the first partition wall, the second partition wall, third partition wall and the 4th partition wall；Pass through sedimentation basin and four partition walls in pond body
It is separated into five gallerys；Five gallerys are the first gallery, the second gallery, third gallery, the 4th gallery and the 5th gallery respectively；The
The outlet end of one gallery is connected with the arrival end of the second gallery, and the outlet end of the second gallery is connected with the arrival end of third gallery
Logical, the outlet end of third gallery is connected with the arrival end of the 4th gallery, the outlet end of the 4th gallery and the entrance of the 5th gallery
The arrival end of end and the first gallery is connected；
The pond body be equipped with water inlet and sludge reflux mouth, and water inlet and sludge reflux mouth be located at the first gallery with
The intersection of 4th gallery, one end of water inlet pipe are connected to water inlet, the outside of the other end connection pond body of water inlet pipe；
The bottom of first gallery and third gallery is respectively provided with a underwater impeller；Two underwater impeller difference
Positioned at the arrival end of the first gallery and the arrival end of third gallery, and two underwater impellers are separately fixed at two impellers and consolidate
In fixed pole；One end of one impeller fixed link is vertical with pond body to be fixedly connected, the other end fixed company vertical with the first divider wall
It connects；One end of another impeller fixed link is vertical with pond body to be fixedly connected, and the other end is vertical with third partition wall to be fixedly connected；The
Three partition walls are fixedly connected with the second partition wall and sedimentation basin respectively；First partition wall is vertical with the second partition wall to be fixedly connected, the 4th partition wall
It is fixedly connected with sedimentation basin；
The bottom of the pond body is equipped with multiple aeration heads, and multiple aeration heads are mounted on corresponding aeration and are in charge of, multiple
Aeration, which is in charge of, to be placed in gallery, and multiple aerations are in charge of to be connected with aeration general pipeline, and aeration general pipeline is placed in the outside of pond body, and is aerated
General pipeline is connected with air pump.
A kind of method of micro- oxygen environment moving-bed biofilm reaction unit processing coal gas wastewater, is to complete according to the following steps
's：
One, coal gas wastewater by way of gravity stream drop from water inlet pipe and water inlet with 0.007m/s~0.01m/s's
Water intake velocity enters in pond body, opens underwater impeller, makes the plug-flow direction of coal gas wastewater along the outlet of the first gallery
End, the arrival end of the second gallery, the outlet end of the second gallery, the arrival end of third gallery, the outlet end of third gallery and the 4th
The entrance extreme direction plug-flow of gallery, the plug-flow flow velocity of coal gas wastewater are 0.0005m/s~0.001m/s；
In coal gas wastewater described in step 1 COD be 1100mg/L~1500mg/L, ammonia nitrogen be 100mg/L~
150mg/L, total nitrogen be 120mg/L~170mg/L, total phenol be 240mg/L~260mg/L, volatile phenol concentration be 100mg/L~
150mg/L；
Two, the valve that air pump and aeration are in charge of is opened, the dissolved oxygen concentration of the intracorporal coal gas wastewater of conditioning tank is
0.3mg/L~0.5mg/L, then open valve and electromagnetic pump on mud return line branch pipe, conditioning of mud reflux ratio is 100%~
300%；
Three, biofilm packing is added into pond body in the water inlet of pond body, in the dosage and pond body of biofilm packing
The volume ratio of coal gas wastewater is (110g~150g):1L, sludge concentration is 5000mg/L~6000mg/L in pond body；
Four, the hydraulic detention time of coal gas wastewater is 40h~60h, the coal gas wastewater that obtains that treated；Treated
Coal gas wastewater is discharged from the outlet pipe of sedimentation basin.
The principle of the present invention and advantage：
One, micro- oxygen refers to the hypoxia between anaerobic and aerobic, and dissolved oxygen concentration is generally between 0- under the environment
The advantages of 1.0mg/L, micro- oxygen environment, is as follows：(1) microbial diversity is high；(2) removal of nitrogen, phosphorus can be achieved；(3) aeration energy consumption
Low, surplus sludge volume is few；(4) high treating effect of hardly degraded organic substance；Bio-carrier in mud film biological reactor is micro-
The growth and breeding of biology provide metastable environmental condition, and can reduce sludge yield.Further, since biology is solid
The body residence time is long, and some generation time longer microorganisms can also give birth to such as nitrobacteria, nitrite bacteria on biomembrane
It is long, so that a variety of deamination phosphorus removing approach can occur in biomembrane.Secondly, the capacity of resisting impact load of mud film biological reactor
Stronger, operational management is more easy；The present invention combines the advantage of micro- oxygen environment and mud film biological reactor, gives full play to more bacterium
The collective effect of group, the present invention develop that low energy consumption and the small micro- oxygen environment moving-bed biofilm reaction unit of sludge yield, high
Effect handles to low energy coal gas wastewater, and reduces the generation of toxic and harmful gas；
Two, the present invention has developed micro- oxygen environment moving-bed biofilm reaction unit, adds into device economical, efficient and resistance to
Biofilm packing increases sludge concentration, realizes the Transport And Transformation of organic matter and effectively successively decreasing for nitrogen, the control system of innovation
Interior low dissolved oxygen (dissolved oxygen concentration is 0.3mg/L~0.5mg/L) and high sludge concentration (sludge concentration between 5000mg/L~
6000mg/L)；
Three, the coupling of micro- oxygen environment and biofilm packing prepared by the present invention, be conducive to different types of microorganisms growth and
Enrichment, come well adapt to waste water quality, water variation, it is easy to accomplish the biotransformation pathway of a variety of nitrogen, and micro- oxygen environment with
When the coupling of biofilm packing prepared by the present invention, oxidation-reduction potential microenvironment abundant and microorganism longer generation
Between, the Transport And Transformation and its mineralising of organic matter are promoted, meanwhile, the sludge yield under micro-oxygen conditions is lower, prepared by the present invention
Biofilm packing provides the space of microorganism growth enrichment, reduces sludge bulking；
Four, coal gas wastewater, COD in coal gas wastewater are handled using a kind of micro- oxygen environment moving-bed biofilm reaction unit
Removal rate be 75%~88%, the removal rate of ammonia nitrogen is 51%~60%, the removal rate of total nitrogen is 35%~45%, total phenol
Removal rate is 60%~65%, and the removal rate of volatile phenol concentration is 65%~70%, and the pollutant of the above difficult for biological degradation is gone
Except rate is higher than the prior art.
The present invention is suitable for processing coal gas wastewater.
Detailed description of the invention
Fig. 1 is the floor plan of micro- oxygen environment moving-bed biofilm reaction unit described in specific embodiment one；
Fig. 2 is sectional view of the Fig. 1 along A-A；
Fig. 3 is sectional view of the Fig. 1 along B-B.
Specific embodiment
Specific embodiment one：Embodiment is described with reference to Fig. 1, a kind of micro- oxygen environment moving bed biological of present embodiment
Film reaction device includes pond body 16, two underwater impeller 3, multiple aeration heads 5, mud return line general pipeline 7, air pumps 8, sedimentation basin
6, impeller fixed link 15, the first partition wall 19, the second partition wall 20, third partition wall 21 and the 4th partition wall 22；
Sedimentation basin 6 and four partition walls are equipped in the pond body 16, and the outside of sedimentation basin 6 is arranged in four partition walls；Institute
Four partition walls stated are respectively the first partition wall 19, the second partition wall 20, third partition wall 21 and the 4th partition wall 22；By heavy in pond body 16
Shallow lake pond 6 and four partition walls are separated into five gallerys；Five gallerys be respectively the first gallery 10, the second gallery 11, third gallery 12,
4th gallery 13 and the 5th gallery 14；The outlet end of first gallery 10 is connected with the arrival end of the second gallery 11, the second gallery
11 outlet end is connected with the arrival end of third gallery 12, the arrival end phase of the outlet end of third gallery 12 and the 4th gallery 13
Connection, the outlet end of the 4th gallery 13 is connected with the arrival end of the arrival end of the 5th gallery 14 and the first gallery 10；
The pond body 16 is equipped with water inlet 1 and sludge reflux mouth 2, and water inlet 1 and sludge reflux mouth 2 are located at first
The intersection of gallery 10 and the 4th gallery 13, one end of water inlet pipe are connected to water inlet 1, the other end connection pond body 16 of water inlet pipe
It is external；
The bottom of first gallery 10 and third gallery 12 is respectively provided with a underwater impeller 3；Two underwater plug-flows
Device 3 is located at the arrival end of the first gallery 10 and the arrival end of third gallery 12, and two underwater impellers 3 are separately fixed at
In two impeller fixed links 15；One end of one impeller fixed link 15 is vertical with pond body 16 to be fixedly connected, the other end and
One divider wall 19 is vertically fixedly connected；One end of another impeller fixed link 15 is vertical with pond body 16 to be fixedly connected, the other end
It is vertical with third partition wall 21 to be fixedly connected；Third partition wall 21 is fixedly connected with the second partition wall 20 and sedimentation basin 6 respectively；First partition wall
19 it is vertical with the second partition wall 20 be fixedly connected, the 4th partition wall 22 is fixedly connected with sedimentation basin 6；
The bottom of the pond body 16 is equipped with multiple aeration heads 5, and multiple aeration heads 5 are mounted on corresponding aeration and are in charge of 17
On, multiple aerations are in charge of 17 and are placed in gallery, and multiple aerations are in charge of 17 and are connected with aeration general pipeline 18, and aeration general pipeline 18 is placed in pond
The outside of body 16, and be aerated general pipeline 18 and be connected with air pump 8.
The space that the first partition wall 19 and the front side pool wall of pond body 16 are formed in present embodiment is the first gallery 10；
The space that the second partition wall 20 and the right side pool wall of pond body 16 are formed in present embodiment is the second gallery 11；
The space that the rear side pool wall of the rear side pool wall of sedimentation basin 6, third partition wall 21 and pond body 16 is formed in present embodiment
For third gallery 12；
The space that the left side pool wall of sedimentation basin 6 and the left side pool wall of pond body 16 are formed in present embodiment is the 4th gallery
13；
The space that the front side pool wall of sedimentation basin 6, the 4th partition wall 22 and the first partition wall 19 are formed in present embodiment is the 5th
Gallery 14.
Fig. 1 is the floor plan of micro- oxygen environment moving-bed biofilm reaction unit described in specific embodiment one；Fig. 1
In 1 be water inlet, 2 be sludge reflux mouth, 3 be underwater impeller, 4 be water (flow) direction, and 5 be aeration head, and 6 be sedimentation basin, and 6-5 is
The outlet pipe of sedimentation basin, 7 be mud return line general pipeline, and 7-1 is mud return line branch pipe, and 8 be air pump, and 10 be the first gallery, 11
It is third gallery for the second gallery, 12,13 be the 4th gallery, and 14 be the 5th gallery, and 15 be impeller fixed link, and 16 be pond body,
17 are in charge of for aeration, and 18 be aeration general pipeline, and 19 be the first divider wall, and 20 be the second partition wall, and 21 be third partition wall；
Fig. 2 is sectional view of the Fig. 1 along A-A, and 6-1 is inclined plate in Fig. 2, and 6-2 is effluent weir, and 6-3 is storage mud groove, and 6-4 is heavy
Shallow lake pond inhalant region, 16 be pond body, and 20 be the second partition wall, and 21 be third partition wall；
Fig. 3 is sectional view of the Fig. 1 along B-B, and 1 is water inlet along Fig. 3, and 2 be sludge reflux mouth, and 5 be aeration head, and 3 be underwater
Impeller, 7 be mud return line general pipeline, and 7-1 is mud return line branch pipe, and 6-1 is inclined plate, and 6-2 is effluent weir, and 6-5 is precipitating
The outlet pipe in pond, 15 be impeller fixed link, and 17 are in charge of for aeration.
The principle and advantage of present embodiment：
One, micro- oxygen refers to the hypoxia between anaerobic and aerobic, and dissolved oxygen concentration is generally between 0- under the environment
The advantages of 1.0mg/L, micro- oxygen environment, is as follows：(1) microbial diversity is high；(2) removal of nitrogen, phosphorus can be achieved；(3) aeration energy consumption
Low, surplus sludge volume is few；(4) high treating effect of hardly degraded organic substance；Bio-carrier in mud film biological reactor is micro-
The growth and breeding of biology provide metastable environmental condition, and can reduce sludge yield.Further, since biology is solid
The body residence time is long, and some generation time longer microorganisms can also give birth to such as nitrobacteria, nitrite bacteria on biomembrane
It is long, so that a variety of deamination phosphorus removing approach can occur in biomembrane.Secondly, the capacity of resisting impact load of mud film biological reactor
Stronger, operational management is more easy；Present embodiment combines the advantage of micro- oxygen environment and mud film biological reactor, gives full play to
The collective effect of more floras, present embodiment develop that low energy consumption and the small micro- oxygen environment moving bed biological film reaction of sludge yield
Device efficiently, handles to low energy coal gas wastewater, and reduces the generation of toxic and harmful gas；
Two, present embodiment has developed micro- oxygen environment moving-bed biofilm reaction unit, adds into device economical, efficient
And durable biofilm packing, increase sludge concentration, realizes the Transport And Transformation of organic matter and effectively successively decreasing for nitrogen, the control of innovation
In system low dissolved oxygen (dissolved oxygen concentration be 0.3mg/L~0.5mg/L) and high sludge concentration (sludge concentration between
5000mg/L~6000mg/L)；
Three, the coupling of micro- oxygen environment and the biofilm packing of present embodiment preparation, it is raw to be conducive to different types of microorganisms
Long and enrichment, to well adapt to waste water quality, water variation, it is easy to accomplish the biotransformation pathway of a variety of nitrogen, and micro- oxygen ring
The coupling of the biofilm packing of border and present embodiment preparation, oxidation-reduction potential microenvironment abundant and microorganism are longer
Generation time promotes the Transport And Transformation and its mineralising of organic matter, meanwhile, the sludge yield under micro-oxygen conditions is lower, this implementation
Biofilm packing prepared by mode provides the space of microorganism growth enrichment, reduces sludge bulking；
Four, coal gas wastewater, COD in coal gas wastewater are handled using a kind of micro- oxygen environment moving-bed biofilm reaction unit
Removal rate be 75%~88%, the removal rate of ammonia nitrogen is 51%~60%, the removal rate of total nitrogen is 35%~45%, total phenol
Removal rate is 60%~65%, and the removal rate of volatile phenol concentration is 65%~70%, and the pollutant of the above difficult for biological degradation is gone
Except rate is higher than the prior art.
Present embodiment is suitable for processing coal gas wastewater.
Specific embodiment two：The differences between this implementation mode and the specific implementation mode are that：The underwater impeller 3
Plug-flow direction is along the outlet end of the first gallery 10, the arrival end of the second gallery 11, the outlet end of the second gallery 11, third gallery
12 arrival end, the outlet end of third gallery 12 and the 4th gallery 13 entrance extreme direction plug-flow, the first gallery 10, the second gallery
11, third gallery 12 and the 4th gallery 13 are the revolution gallerys of oxidation ditch form, can turn round and circulate.Other steps and tool
Body embodiment one is identical.
Specific embodiment three：Illustrate present embodiment, present embodiment and specific embodiment one in conjunction with FIG. 1 to FIG. 3
Or one of two difference be：The sedimentation basin 6 is inclined-plate clarifying basin, and the middle part of inclined-plate clarifying basin is inclined plate 6-1, inclined plate 6-1
Top be effluent weir 6-2, the lower part of inclined plate 6-1 is equipped with sedimentation basin inhalant region 6-4, and the lower part of sedimentation basin inhalant region 6-4 is equipped with
Two storage mud groove 6-3, one end of the outlet pipe 6-5 of sedimentation basin are connected with effluent weir 6-2, and the other end is pierced by pond body 16.It is other
Step is the same as one or two specific embodiments.
Specific embodiment four：Illustrate present embodiment, present embodiment and specific embodiment one in conjunction with FIG. 1 to FIG. 3
It is to one of three differences：The bottom end of described two storages mud groove 6-3 one end phase with two mud return line branch pipe 7-1 respectively
Connection, two mud return lines 1 are connected with the sludge reflux mouth 2 in pond body 16.Other steps and specific embodiment one to
Three is identical.
Specific embodiment five：One of present embodiment and specific embodiment one to four difference are：The inclined plate
For 6-1 horizontal by 45 angles ゜~60 angles ゜, inclined plate length is 0.8m~1.1m, inclined plate clear distance 25mm~35mm, water flow upper up-flow
Fast 0.0004m/s~0.0008m/s.Other steps are identical as specific embodiment one to four.
Specific embodiment six：One of present embodiment and specific embodiment one to five difference are：The aeration
First 5 number is 7, and aeration head 5 is micro porous aeration head.Other steps are identical as specific embodiment one to five.
Specific embodiment seven：One of present embodiment and specific embodiment one to six difference are：The aeration
It is in charge of 17 and is equipped with valve, the valve is butterfly valve.Other steps are identical as specific embodiment one to six.
Specific embodiment eight：One of present embodiment and specific embodiment one to seven difference are：The sludge
Return pipe branch pipe 7-1 is equipped with valve and electromagnetic pump, and the valve is ball valve.Other steps and specific embodiment one to seven
It is identical.
Specific embodiment nine：Present embodiment is a kind of micro- oxygen environment moving-bed biofilm reaction unit processing coal gas
The method of waste water, is completed by the following steps：
One, coal gas wastewater by way of gravity stream drop from water inlet pipe and water inlet 1 with 0.007m/s~0.01m/s's
Water intake velocity enters in pond body 16, opens underwater impeller 3, makes the plug-flow direction of coal gas wastewater along the first gallery 10
Outlet end, the arrival end of the second gallery 11, the outlet end of the second gallery 11, the arrival end of third gallery 12, third gallery 12
The entrance extreme direction plug-flow of outlet end and the 4th gallery 13, the plug-flow flow velocity of coal gas wastewater are 0.0005m/s~0.001m/s；
In coal gas wastewater described in step 1 COD be 1100mg/L~1500mg/L, ammonia nitrogen be 100mg/L~
150mg/L, total nitrogen be 120mg/L~170mg/L, total phenol be 240mg/L~260mg/L, volatile phenol concentration be 100mg/L~
150mg/L；
Two, the valve that air pump 8 and aeration are in charge of on 17 is opened, the dissolved oxygen concentration of the coal gas wastewater in pond body 16 is adjusted
For 0.3mg/L~0.5mg/L, then the valve and electromagnetic pump on mud return line branch pipe 7-1 are opened, conditioning of mud reflux ratio is
100%~300%；
Three, biofilm packing, the dosage of biofilm packing and pond are added into pond body 16 at the water inlet 1 of pond body 16
The volume ratio of coal gas wastewater is (110g~150g) in body 16:1L, sludge concentration is 5000mg/L~6000mg/ in pond body 16
L；
Four, the hydraulic detention time of coal gas wastewater is 40h~60h, the coal gas wastewater that obtains that treated；Treated
Coal gas wastewater is discharged from the outlet pipe 6-5 of sedimentation basin.
Specific embodiment ten：The difference of present embodiment and specific embodiment nine is：Life described in step 3
Object film filler is prepared according to the following steps：
One, it pre-processes：
Filler is cleaned using deionized water, until the pH value of cleaning solution is 7, then the filler after deionized water is cleaned
It is dried at being 100 DEG C~105 DEG C in temperature, the filler after being cleaned；
Filler described in step 1 is coal ash, and partial size is 5mm~10mm；
Two, the filler after cleaning is add to deionized water, is uniformly mixed, obtains the mixed liquor containing filler；It is stirring
Mixing speed is the H for the use of concentration being 3mol/L~4mol/L under 500r/min~800r/min2SO4By the mixed liquor containing filler
PH value be adjusted to 2, then stand, remove solvent, then dry at being 100 DEG C~105 DEG C in temperature, obtain the modified filler of acid；
Three, acid modified filler, attapulgite and Powdered Activated Carbon are uniformly mixed, add distilled water, stirs evenly
Afterwards, mixture is obtained；Mixture is put into the banded extruder that aperture is 5mm~10mm and carries out extrusion, then the item of extrusion is cut
Be 10mm~15mm at length, length is that the item of 10mm~15mm is aged 2h~4h at room temperature, then temperature be 105 DEG C~
1h~2h is dried at 110 DEG C, then roasts 3h~3.5h at being 500 DEG C~550 DEG C in temperature, the filler after being roasted；
The quality of the modified filler of acid described in step 3 and the volume ratio of distilled water are (40g~45g):35mL；；
The quality of attapulgite described in step 3 and the volume ratio of distilled water are (25g~30g):35mL；
The quality of Powdered Activated Carbon described in step 3 and the volume ratio of distilled water are (30g~354g):35mL；
Four, oxalic acid is added into the iron nitrate solution that concentration is 0.1mol/L, obtains maceration extract；By the filler leaching after roasting
Enter into maceration extract dipping 20h~28h, then be filtered, removes maceration extract, the filler after being impregnated；By filling out after dipping
Material dries 10h~12h at being 80 DEG C~110 DEG C in temperature, then dries 2h~4h at being 100 DEG C~120 DEG C in temperature, finally exists
Temperature is that 3h~3.5h is roasted at 350 DEG C~360 DEG C, obtains biofilm packing；
The volume ratio for the iron nitrate solution that the quality of oxalic acid described in step 4 and concentration are 0.1mol/L be (0.5g~
0.7g):50mL.Other steps are identical as specific embodiment nine.
Beneficial effects of the present invention are verified using following embodiment：
Embodiment one：A kind of micro- oxygen environment moving-bed biofilm reaction unit include pond body 16, two underwater impellers 3,
Multiple aeration heads 5, mud return line general pipeline 7, air pump 8, sedimentation basin 6, impeller fixed link 15, the first partition wall 19, the second partition wall
20, third partition wall 21 and the 4th partition wall 22；
Sedimentation basin 6 and four partition walls are equipped in the pond body 16；Four partition walls are respectively the first partition wall 19,
Two partition walls 20, third partition wall 21 and the 4th partition wall 22；Five gallerys are separated by sedimentation basin 6 and four partition walls in pond body 16；
Five gallerys are the first gallery 10, the second gallery 11, third gallery 12, the 4th gallery 13 and the 5th gallery 14 respectively；First corridor
The outlet end in road 10 is connected with the arrival end of the second gallery 11, the outlet end of the second gallery 11 and the arrival end of third gallery 12
It is connected, the outlet end of third gallery 12 is connected with the arrival end of the 4th gallery 13, the outlet end and the 5th of the 4th gallery 13
The arrival end of the arrival end of gallery 14 and the first gallery 10 is connected；
The pond body 16 is equipped with water inlet 1 and sludge reflux mouth 2, and water inlet 1 and sludge reflux mouth 2 are located at first
The intersection of gallery 10 and the 4th gallery 13, one end of water inlet pipe are connected to water inlet 1, the other end connection pond body 16 of water inlet pipe
It is external；
The bottom of first gallery 10 and third gallery 12 is respectively provided with a underwater impeller 3；Two underwater plug-flows
Device 3 is located at the arrival end of the first gallery 10 and the arrival end of third gallery 12, and two underwater impellers 3 are separately fixed at
In two impeller fixed links 15；One end of one impeller fixed link 15 is vertical with pond body 16 to be fixedly connected, the other end and
One divider wall 19 is vertically fixedly connected；One end of another impeller fixed link 15 is vertical with pond body 16 to be fixedly connected, the other end
It is vertical with third partition wall 21 to be fixedly connected；Third partition wall 21 is fixedly connected with the second partition wall 20 and sedimentation basin 6 respectively；First partition wall
19 it is vertical with the second partition wall 20 be fixedly connected, the 4th partition wall 22 is fixedly connected with sedimentation basin 6；
The bottom of the pond body 16 is equipped with multiple aeration heads 5, and multiple aeration heads 5 are mounted on corresponding aeration and are in charge of 17
On, multiple aerations are in charge of 17 and are placed in gallery, and multiple aerations are in charge of 17 and are connected with aeration general pipeline 18, and aeration general pipeline 18 is placed in pond
The outside of body 16, and be aerated general pipeline 18 and be connected with air pump 8；
The plug-flow direction of the underwater impeller 3 be along the outlet end of the first gallery 10, the second gallery 11 arrival end,
The outlet end of second gallery 11, the arrival end of third gallery 12, the outlet end of third gallery 12 and the arrival end of the 4th gallery 13
Direction plug-flow, the first gallery 10, the second gallery 11, third gallery 12 and the 4th gallery 13 are the revolution gallerys of oxidation ditch form,
It can turn round and circulate；
The sedimentation basin 6 is inclined-plate clarifying basin, and the middle part of inclined-plate clarifying basin is inclined plate 6-1, and the top of inclined plate 6-1 is
The lower part of mill weir 6-2, inclined plate 6-1 be equipped with sedimentation basin inhalant region 6-4, the lower part of sedimentation basin inhalant region 6-4 set there are two store up mud groove
One end of 6-3, the outlet pipe 6-5 of sedimentation basin are connected with effluent weir 6-2, and the other end is pierced by pond body 16；
The bottom end of two storage mud groove 6-3 is connected with one end of two mud return line branch pipe 7-1 respectively, and two
Mud return line 1 is connected with the sludge reflux mouth 2 in pond body 16；
For the inclined plate 6-1 horizontal by 60 angles ゜, inclined plate length is 1m, inclined plate clear distance 35mm, water flow upflow velocity
0.0005m/s；
The number of the aeration head 5 is 7, and aeration head 5 is micro porous aeration head；
The aeration is in charge of 17 and is equipped with valve, and the valve is butterfly valve；
The mud return line branch pipe 7-1 is equipped with valve and electromagnetic pump, and the valve is ball valve.
Embodiment two：It is useless using the micro- oxygen environment moving-bed biofilm reaction unit processing coal gas of one of embodiment one
The method of water, is completed by the following steps：
One, coal gas wastewater by way of gravity stream drop from water inlet pipe and water inlet 1 with the water intake velocity of 0.007m/s
Enter in pond body 16, open underwater impeller 3, make the plug-flow direction of coal gas wastewater along the first gallery 10 outlet end,
The arrival end of second gallery 11, the outlet end of the second gallery 11, the arrival end of third gallery 12, third gallery 12 outlet end and
The entrance extreme direction plug-flow of 4th gallery 13, the plug-flow flow velocity of coal gas wastewater are 0.0005m/s；
In coal gas wastewater described in step 1 COD be 1300g/L, ammonia nitrogen 130mg/L, total nitrogen 150mg/L, always
Phenol is 260mg/L, and volatile phenol concentration is 150mg/L；
Two, the valve that air pump 8 and aeration are in charge of on 17 is opened, the dissolved oxygen concentration of the coal gas wastewater in pond body 16 is adjusted
For 0.3mg/L~0.5mg/L, then the valve and electromagnetic pump on mud return line branch pipe 7-1 are opened, conditioning of mud reflux ratio is
100%；
Three, biofilm packing, the dosage of biofilm packing and pond are added into pond body 16 at the water inlet 1 of pond body 16
The volume ratio of coal gas wastewater is 110g in body 16:1L, sludge concentration is 5200mg/L in pond body 16；
Four, the hydraulic detention time of coal gas wastewater is 48h, the coal gas wastewater that obtains that treated；Coal system that treated
Gas waste water is discharged from the outlet pipe 6-5 of sedimentation basin；
Biofilm packing described in step 3 is prepared according to the following steps：
One, it pre-processes：
Filler is cleaned using deionized water, until the pH value of cleaning solution is 7, then the filler after deionized water is cleaned
It is dried at being 105 DEG C in temperature, the filler after being cleaned；
Filler described in step 1 is coal ash, and partial size is 5mm~10mm；
Two, the filler after cleaning is add to deionized water, is uniformly mixed, obtains the mixed liquor containing filler；It is stirring
Mixing speed is the H for the use of concentration being 3mol/L under 500r/min2SO4The pH value of mixed liquor containing filler is adjusted to 2, then quiet
It sets, removes solvent, then dry at being 105 DEG C in temperature, obtain the modified filler of acid；
Three, acid modified filler, attapulgite and Powdered Activated Carbon are uniformly mixed, add distilled water, stirs evenly
Afterwards, mixture is obtained；Mixture is put into the banded extruder that aperture is 20mm and carries out extrusion, then the item of extrusion is cut into length
For 15mm, the item that length is 15mm is aged 2h at room temperature, then 1h is dried at being 110 DEG C in temperature, then in the case where temperature is 500 DEG C
Roast 3h, the filler after being roasted；
The quality of the modified filler of acid described in step 3 and the volume ratio of distilled water are 42g:35mL；
The quality of attapulgite described in step 3 and the volume ratio of distilled water are 27g:35mL；
The quality of Powdered Activated Carbon described in step 3 and the volume ratio of distilled water are 32g:35mL；
Four, oxalic acid is added into the iron nitrate solution that concentration is 0.1mol/L, obtains maceration extract；By the filler leaching after roasting
Enter and impregnated for 24 hours into maceration extract, then be filtered, removes maceration extract, the filler after being impregnated；By the filler after dipping in temperature
Degree is 10h to be dried at 80 DEG C, then dry 2h at being 120 DEG C in temperature, roasts 3h at being finally 350 DEG C in temperature, obtains biology
Film filler；
The volume ratio for the iron nitrate solution that the quality and concentration of oxalic acid described in step 4 are 0.1mol/L is 0.5g:
50mL。
The pool height of sedimentation basin inhalant region 6-4 is 0.5m in embodiment two, and the pool height on inclined plate 6-1 is 0.5m.
COD is 301.2mg/L, ammonia nitrogen 70.3mg/L in treated obtained in embodiment two coal gas wastewater, always
Nitrogen is 97.7mg/L, and total phenol 104.6mg/L, volatile phenol concentration is 52.5mg/L.
Embodiment three：It is useless using the micro- oxygen environment moving-bed biofilm reaction unit processing coal gas of one of embodiment one
The method of water, is completed by the following steps：
One, coal gas wastewater by way of gravity stream drop from water inlet pipe and water inlet 1 with the water intake velocity of 0.007m/s
Enter in pond body 16, open underwater impeller 3, make the plug-flow direction of coal gas wastewater along the first gallery 10 outlet end,
The arrival end of second gallery 11, the outlet end of the second gallery 11, the arrival end of third gallery 12, third gallery 12 outlet end and
The entrance extreme direction plug-flow of 4th gallery 13, the plug-flow flow velocity of coal gas wastewater are 0.0005m/s；
In coal gas wastewater described in step 1 COD be 1300g/L, ammonia nitrogen 130mg/L, total nitrogen 150mg/L, always
Phenol is 260mg/L, and volatile phenol concentration is 150mg/L；
Two, the valve that air pump 8 and aeration are in charge of on 17 is opened, the dissolved oxygen concentration of the coal gas wastewater in pond body 16 is adjusted
For 0.3mg/L~0.5mg/L, then the valve and electromagnetic pump on mud return line branch pipe 7-1 are opened, conditioning of mud reflux ratio is
100%；
Three, biofilm packing, the dosage of biofilm packing and pond are added into pond body 16 at the water inlet 1 of pond body 16
The volume ratio of coal gas wastewater is 130g in body 16:1L, sludge concentration is 5500mg/L in pond body 16；
Four, the hydraulic detention time of coal gas wastewater is 48h, the coal gas wastewater that obtains that treated；Coal system that treated
Gas waste water is discharged from the outlet pipe 6-5 of sedimentation basin；
Biofilm packing described in step 3 is prepared according to the following steps：
One, it pre-processes：
Filler is cleaned using deionized water, until the pH value of cleaning solution is 7, then the filler after deionized water is cleaned
It is dried at being 105 DEG C in temperature, the filler after being cleaned；
Filler described in step 1 is coal ash, and partial size is 5mm~10mm；
Two, the filler after cleaning is add to deionized water, is uniformly mixed, obtains the mixed liquor containing filler；It is stirring
Mixing speed is the H for the use of concentration being 3mol/L under 500r/min2SO4The pH value of mixed liquor containing filler is adjusted to 2, then quiet
It sets, removes solvent, then dry at being 105 DEG C in temperature, obtain the modified filler of acid；
Three, acid modified filler, attapulgite and Powdered Activated Carbon are uniformly mixed, add distilled water, stirs evenly
Afterwards, mixture is obtained；Mixture is put into the banded extruder that aperture is 20mm and carries out extrusion, then the item of extrusion is cut into length
For 15mm, the item that length is 15mm is aged 2h at room temperature, then 1h is dried at being 110 DEG C in temperature, then in the case where temperature is 500 DEG C
Roast 3h, the filler after being roasted；
The quality of the modified filler of acid described in step 3 and the volume ratio of distilled water are 42g:35mL；
The quality of attapulgite described in step 3 and the volume ratio of distilled water are 27g:35mL；
The quality of Powdered Activated Carbon described in step 3 and the volume ratio of distilled water are 32g:35mL；
Four, oxalic acid is added into the iron nitrate solution that concentration is 0.1mol/L, obtains maceration extract；By the filler leaching after roasting
Enter and impregnated for 24 hours into maceration extract, then be filtered, removes maceration extract, the filler after being impregnated；By the filler after dipping in temperature
Degree is 10h to be dried at 80 DEG C, then dry 2h at being 120 DEG C in temperature, roasts 3h at being finally 350 DEG C in temperature, obtains biology
Film filler；
The volume ratio for the iron nitrate solution that the quality and concentration of oxalic acid described in step 4 are 0.1mol/L is 0.5g:
50mL。
The pool height of sedimentation basin inhalant region 6-4 is 0.5m in embodiment three, and the pool height on inclined plate 6-1 is 0.5m.
COD is 199.3mg/L, ammonia nitrogen 68.9mg/L in treated obtained in embodiment three coal gas wastewater, always
Nitrogen is 93.3mg/L, and total phenol 98.5mg/L, volatile phenol concentration is 50.7mg/L.
Example IV：It is useless using the micro- oxygen environment moving-bed biofilm reaction unit processing coal gas of one of embodiment one
The method of water, is completed by the following steps：
One, coal gas wastewater by way of gravity stream drop from water inlet pipe and water inlet 1 with the water intake velocity of 0.007m/s
Enter in pond body 16, open underwater impeller 3, make the plug-flow direction of coal gas wastewater along the first gallery 10 outlet end,
The arrival end of second gallery 11, the outlet end of the second gallery 11, the arrival end of third gallery 12, third gallery 12 outlet end and
The entrance extreme direction plug-flow of 4th gallery 13, the plug-flow flow velocity of coal gas wastewater are 0.0005m/s；
In coal gas wastewater described in step 1 COD be 1300g/L, ammonia nitrogen 130mg/L, total nitrogen 150mg/L, always
Phenol is 260mg/L, and volatile phenol concentration is 150mg/L；
Two, the valve that air pump 8 and aeration are in charge of on 17 is opened, the dissolved oxygen concentration of the coal gas wastewater in pond body 16 is adjusted
For 0.3mg/L~0.5mg/L, then the valve and electromagnetic pump on mud return line branch pipe 7-1 are opened, conditioning of mud reflux ratio is
100%；
Three, biofilm packing, the dosage of biofilm packing and pond are added into pond body 16 at the water inlet 1 of pond body 16
The volume ratio of coal gas wastewater is 150g in body 16:1L, sludge concentration is 5600mg/L in pond body 16；
Four, the hydraulic detention time of coal gas wastewater is 48h, the coal gas wastewater that obtains that treated；Coal system that treated
Gas waste water is discharged from the outlet pipe 6-5 of sedimentation basin；
Biofilm packing described in step 3 is prepared according to the following steps：
One, it pre-processes：
Filler is cleaned using deionized water, until the pH value of cleaning solution is 7, then the filler after deionized water is cleaned
It is dried at being 105 DEG C in temperature, the filler after being cleaned；
Filler described in step 1 is coal ash, and partial size is 5mm~10mm；
Two, the filler after cleaning is add to deionized water, is uniformly mixed, obtains the mixed liquor containing filler；It is stirring
Mixing speed is the H for the use of concentration being 3mol/L under 500r/min2SO4The pH value of mixed liquor containing filler is adjusted to 2, then quiet
It sets, removes solvent, then dry at being 105 DEG C in temperature, obtain the modified filler of acid；
Three, acid modified filler, attapulgite and Powdered Activated Carbon are uniformly mixed, add distilled water, stirs evenly
Afterwards, mixture is obtained；Mixture is put into the banded extruder that aperture is 20mm and carries out extrusion, then the item of extrusion is cut into length
For 15mm, the item that length is 15mm is aged 2h at room temperature, then 1h is dried at being 110 DEG C in temperature, then in the case where temperature is 500 DEG C
Roast 3h, the filler after being roasted；
The quality of the modified filler of acid described in step 3 and the volume ratio of distilled water are 42g:35mL；
The quality of attapulgite described in step 3 and the volume ratio of distilled water are 27g:35mL；
The quality of Powdered Activated Carbon described in step 3 and the volume ratio of distilled water are 32g:35mL；
Four, oxalic acid is added into the iron nitrate solution that concentration is 0.1mol/L, obtains maceration extract；By the filler leaching after roasting
Enter and impregnated for 24 hours into maceration extract, then be filtered, removes maceration extract, the filler after being impregnated；By the filler after dipping in temperature
Degree is 10h to be dried at 80 DEG C, then dry 2h at being 120 DEG C in temperature, roasts 3h at being finally 350 DEG C in temperature, obtains biology
Film filler；
The volume ratio for the iron nitrate solution that the quality and concentration of oxalic acid described in step 4 are 0.1mol/L is 0.5g:
50mL。
The pool height of sedimentation basin inhalant region 6-4 is 0.5m in example IV, and the pool height on inclined plate 6-1 is 0.5m.
COD is 193.6mg/L, ammonia nitrogen 65.8mg/L in treated obtained in example IV coal gas wastewater, always
Nitrogen is 90.1mg/L, and total phenol 95.4mg/L, volatile phenol concentration is 48.9mg/L.
Embodiment five：It is useless using the micro- oxygen environment moving-bed biofilm reaction unit processing coal gas of one of embodiment one
The method of water, is completed by the following steps：
One, coal gas wastewater by way of gravity stream drop from water inlet pipe and water inlet 1 with the water intake velocity of 0.007m/s
Enter in pond body 16, open underwater impeller 3, make the plug-flow direction of coal gas wastewater along the first gallery 10 outlet end,
The arrival end of second gallery 11, the outlet end of the second gallery 11, the arrival end of third gallery 12, third gallery 12 outlet end and
The entrance extreme direction plug-flow of 4th gallery 13, the plug-flow flow velocity of coal gas wastewater are 0.0005m/s；
In coal gas wastewater described in step 1 COD be 1300g/L, ammonia nitrogen 130mg/L, total nitrogen 150mg/L, always
Phenol is 260mg/L, and volatile phenol concentration is 150mg/L；
Two, the valve that air pump 8 and aeration are in charge of on 17 is opened, the dissolved oxygen concentration of the coal gas wastewater in pond body 16 is adjusted
For 0.3mg/L~0.5mg/L, then the valve and electromagnetic pump on mud return line branch pipe 7-1 are opened, conditioning of mud reflux ratio is
200%；
Three, biofilm packing, the dosage of biofilm packing and pond are added into pond body 16 at the water inlet 1 of pond body 16
The volume ratio of coal gas wastewater is 130g in body 16:1L, sludge concentration is 5600mg/L in pond body 16；
Four, the hydraulic detention time of coal gas wastewater is 48h, the coal gas wastewater that obtains that treated；Coal system that treated
Gas waste water is discharged from the outlet pipe 6-5 of sedimentation basin；
Biofilm packing described in step 3 is prepared according to the following steps：
One, it pre-processes：
Filler is cleaned using deionized water, until the pH value of cleaning solution is 7, then the filler after deionized water is cleaned
It is dried at being 105 DEG C in temperature, the filler after being cleaned；
Filler described in step 1 is coal ash, and partial size is 5mm~10mm；
Two, the filler after cleaning is add to deionized water, is uniformly mixed, obtains the mixed liquor containing filler；It is stirring
Mixing speed is the H for the use of concentration being 3mol/L under 500r/min2SO4The pH value of mixed liquor containing filler is adjusted to 2, then quiet
It sets, removes solvent, then dry at being 105 DEG C in temperature, obtain the modified filler of acid；
Three, acid modified filler, attapulgite and Powdered Activated Carbon are uniformly mixed, add distilled water, stirs evenly
Afterwards, mixture is obtained；Mixture is put into the banded extruder that aperture is 20mm and carries out extrusion, then the item of extrusion is cut into length
For 15mm, the item that length is 15mm is aged 2h at room temperature, then 1h is dried at being 110 DEG C in temperature, then in the case where temperature is 500 DEG C
Roast 3h, the filler after being roasted；
The quality of the modified filler of acid described in step 3 and the volume ratio of distilled water are 42g:35mL；
The quality of attapulgite described in step 3 and the volume ratio of distilled water are 27g:35mL；
The quality of Powdered Activated Carbon described in step 3 and the volume ratio of distilled water are 32g:35mL；
Four, oxalic acid is added into the iron nitrate solution that concentration is 0.1mol/L, obtains maceration extract；By the filler leaching after roasting
Enter and impregnated for 24 hours into maceration extract, then be filtered, removes maceration extract, the filler after being impregnated；By the filler after dipping in temperature
Degree is 10h to be dried at 80 DEG C, then dry 2h at being 120 DEG C in temperature, roasts 3h at being finally 350 DEG C in temperature, obtains biology
Film filler；
The volume ratio for the iron nitrate solution that the quality and concentration of oxalic acid described in step 4 are 0.1mol/L is 0.5g:
50mL。
The pool height of sedimentation basin inhalant region 6-4 is 0.5m in embodiment five, and the pool height on inclined plate 6-1 is 0.5m.
COD is 176.8mg/L, ammonia nitrogen 58.5mg/L in treated obtained in embodiment five coal gas wastewater, always
Nitrogen is 85.2mg/L, and total phenol 92.3mg/L, volatile phenol concentration is 46.3mg/L.
Embodiment six：It is useless using the micro- oxygen environment moving-bed biofilm reaction unit processing coal gas of one of embodiment one
The method of water, is completed by the following steps：
One, coal gas wastewater by way of gravity stream drop from water inlet pipe and water inlet 1 with the water intake velocity of 0.007m/s
Enter in pond body 16, open underwater impeller 3, make the plug-flow direction of coal gas wastewater along the first gallery 10 outlet end,
The arrival end of second gallery 11, the outlet end of the second gallery 11, the arrival end of third gallery 12, third gallery 12 outlet end and
The entrance extreme direction plug-flow of 4th gallery 13, the plug-flow flow velocity of coal gas wastewater are 0.0005m/s；
In coal gas wastewater described in step 1 COD be 1300g/L, ammonia nitrogen 130mg/L, total nitrogen 150mg/L, always
Phenol is 260mg/L, and volatile phenol concentration is 150mg/L；
Two, the valve that air pump 8 and aeration are in charge of on 17 is opened, the dissolved oxygen concentration of the coal gas wastewater in pond body 16 is adjusted
For 0.3mg/L~0.5mg/L, then the valve and electromagnetic pump on mud return line branch pipe 7-1 are opened, conditioning of mud reflux ratio is
200%；
Three, biofilm packing, the dosage of biofilm packing and pond are added into pond body 16 at the water inlet 1 of pond body 16
The volume ratio of coal gas wastewater is 130g in body 16:1L, sludge concentration is 5700mg/L in pond body 16；
Four, the hydraulic detention time of coal gas wastewater is 48h, the coal gas wastewater that obtains that treated；Coal system that treated
Gas waste water is discharged from the outlet pipe 6-5 of sedimentation basin；
Biofilm packing described in step 3 is prepared according to the following steps：
One, it pre-processes：
Filler is cleaned using deionized water, until the pH value of cleaning solution is 7, then the filler after deionized water is cleaned
It is dried at being 105 DEG C in temperature, the filler after being cleaned；
Filler described in step 1 is coal ash, and partial size is 5mm~10mm；
Two, the filler after cleaning is add to deionized water, is uniformly mixed, obtains the mixed liquor containing filler；It is stirring
Mixing speed is the H for the use of concentration being 3mol/L under 500r/min2SO4The pH value of mixed liquor containing filler is adjusted to 2, then quiet
It sets, removes solvent, then dry at being 105 DEG C in temperature, obtain the modified filler of acid；
Three, acid modified filler, attapulgite and Powdered Activated Carbon are uniformly mixed, add distilled water, stirs evenly
Afterwards, mixture is obtained；Mixture is put into the banded extruder that aperture is 20mm and carries out extrusion, then the item of extrusion is cut into length
For 15mm, the item that length is 15mm is aged 2h at room temperature, then 1h is dried at being 110 DEG C in temperature, then in the case where temperature is 500 DEG C
Roast 3h, the filler after being roasted；
The quality of the modified filler of acid described in step 3 and the volume ratio of distilled water are 42g:35mL；
The quality of attapulgite described in step 3 and the volume ratio of distilled water are 27g:35mL；
The quality of Powdered Activated Carbon described in step 3 and the volume ratio of distilled water are 32g:35mL；
Four, oxalic acid is added into the iron nitrate solution that concentration is 0.1mol/L, obtains maceration extract；By the filler leaching after roasting
Enter and impregnated for 24 hours into maceration extract, then be filtered, removes maceration extract, the filler after being impregnated；By the filler after dipping in temperature
Degree is 10h to be dried at 80 DEG C, then dry 2h at being 120 DEG C in temperature, roasts 3h at being finally 350 DEG C in temperature, obtains biology
Film filler；
The volume ratio for the iron nitrate solution that the quality and concentration of oxalic acid described in step 4 are 0.1mol/L is 0.5g:
50mL。
The pool height of sedimentation basin inhalant region 6-4 is 0.5m in embodiment six, and the pool height on inclined plate 6-1 is 0.5m.
COD is 165.7mg/L, ammonia nitrogen 50.3mg/L in treated obtained in embodiment six coal gas wastewater, always
Nitrogen is 78.8mg/L, and total phenol 88.1mg/L, volatile phenol concentration is 45.2mg/L.
Claims (10)
1. a kind of micro- oxygen environment moving-bed biofilm reaction unit, it is characterised in that a kind of micro- oxygen environment moving bed biological film reaction
Device includes pond body (16), two underwater impellers (3), multiple aeration heads (5), mud return line general pipeline (7), air pump (8), sinks
Shallow lake pond (6), impeller fixed link (15), the first partition wall (19), the second partition wall (20), third partition wall (21) and the 4th partition wall
(22)；
Sedimentation basin (6) and four partition walls are equipped in the pond body (16), and four partition wall settings are in the outside of sedimentation basin (6)；
Four partition walls are respectively the first partition wall (19), the second partition wall (20), third partition wall (21) and the 4th partition wall (22)；Pond body
(16) five gallerys are separated by sedimentation basin (6) and four partition walls in；Five gallerys are the first gallery (10), the second corridor respectively
Road (11), third gallery (12), the 4th gallery (13) and the 5th gallery (14)；The outlet end of first gallery (10) and the second gallery
(11) arrival end is connected, and the outlet end of the second gallery (11) is connected with the arrival end of third gallery (12), third gallery
(12) outlet end is connected with the arrival end of the 4th gallery (13), outlet end and the 5th gallery (14) of the 4th gallery (13)
The arrival end of arrival end and the first gallery (10) is connected；
The pond body (16) is equipped with water inlet (1) and sludge reflux mouth (2), and water inlet (1) and sludge reflux mouth (2) position
It is connected to water inlet (1) in one end of the intersection of the first gallery (10) and the 4th gallery (13), water inlet pipe, the other end of water inlet pipe
It is connected to the outside of pond body (16)；
The bottom of first gallery (10) and third gallery (12) is respectively provided with a underwater impeller (3)；Two push away under water
Stream device (3) is located at the arrival end of the first gallery (10) and the arrival end of third gallery (12), and two underwater impellers (3)
It is separately fixed on two impeller fixed links (15)；One end of one impeller fixed link (15) is vertical with pond body (16) fixed
Connection, the other end is vertical with the first divider wall (19) to be fixedly connected；One end of another impeller fixed link (15) and pond body
(16) it is vertically fixedly connected, the other end is vertical with third partition wall (21) to be fixedly connected；Third partition wall (21) respectively with the second partition wall
(20) and sedimentation basin (6) is fixedly connected；First partition wall (19) is vertical with the second partition wall (20) to be fixedly connected, the 4th partition wall (22) with
Sedimentation basin (6) is fixedly connected；
The bottom of the pond body (16) is equipped with multiple aeration heads (5), and multiple aeration heads (5) are mounted on corresponding aeration and are in charge of
(17) on, multiple aerations are in charge of (17) and are placed in gallery, and multiple aerations are in charge of (17) and are connected with aeration general pipeline (18), and aeration is total
Pipe (18) is placed in the outside of pond body (16), and is aerated general pipeline (18) and is connected with air pump (8).
2. a kind of micro- oxygen environment moving-bed biofilm reaction unit according to claim 1, it is characterised in that the water
The plug-flow direction of lower impeller (3) is along the outlet end of the first gallery (10), the arrival end of the second gallery (11), the second gallery
(11) arrival end of the arrival end of outlet end, third gallery (12), the outlet end of third gallery (12) and the 4th gallery (13)
Direction plug-flow, the first gallery (10), the second gallery (11), third gallery (12) and the 4th gallery (13) are returning for oxidation ditch form
Turn gallery, can turn round and circulate.
3. a kind of micro- oxygen environment moving-bed biofilm reaction unit according to claim 1, it is characterised in that described is heavy
Shallow lake pond (6) is inclined-plate clarifying basin, and the middle part of inclined-plate clarifying basin is inclined plate (6-1), and the top of inclined plate (6-1) is effluent weir (6-2),
The lower part of inclined plate (6-1) be equipped with sedimentation basin inhalant region (6-4), the lower part of sedimentation basin inhalant region (6-4) set there are two store up mud groove (6-
3), one end of the outlet pipe (6-5) of sedimentation basin is connected with effluent weir (6-2), and the other end is pierced by pond body (16).
4. a kind of micro- oxygen environment moving-bed biofilm reaction unit according to claim 3, it is characterised in that described two
The bottom end of a storage mud groove (6-3) is connected with one end of two mud return line branch pipes (7-1) respectively, two mud return lines 1
It is connected with the sludge reflux mouth (2) on pond body (16).
5. a kind of micro- oxygen environment moving-bed biofilm reaction unit according to claim 3, it is characterised in that described is oblique
Plate (6-1) is horizontal by 45 angles ゜~60 angles ゜, and inclined plate length is 0.8m~1.1m, inclined plate clear distance 25mm~35mm, in water flow
Flow up speed 0.0004m/s~0.0008m/s.
6. a kind of micro- oxygen environment moving-bed biofilm reaction unit according to claim 3, it is characterised in that the exposure
The number of gas head (5) is 7, and aeration head (5) is micro porous aeration head.
7. a kind of micro- oxygen environment moving-bed biofilm reaction unit according to claim 1, it is characterised in that the exposure
Gas is in charge of (17) equipped with valve, and the valve is butterfly valve.
8. a kind of micro- oxygen environment moving-bed biofilm reaction unit according to claim 4, it is characterised in that the dirt
Mud return pipe branch pipe (7-1) is equipped with valve and electromagnetic pump, and the valve is ball valve.
9. utilizing a kind of side of micro- oxygen environment moving-bed biofilm reaction unit processing coal gas wastewater as described in claim 1
Method, it is characterised in that this method is completed by the following steps：
One, coal gas wastewater by way of gravity stream drop from water inlet pipe and water inlet (1) with 0.007m/s~0.01m/s into
Water speed enters in pond body (16), opens underwater impeller (3), makes the plug-flow direction of coal gas wastewater along the first gallery
(10) outlet end, the arrival end of the second gallery (11), the outlet end of the second gallery (11), third gallery (12) arrival end,
The plug-flow flow velocity of the entrance extreme direction plug-flow of the outlet end of third gallery (12) and the 4th gallery (13), coal gas wastewater is
0.0005m/s~0.001m/s；
COD is 1100mg/L~1500mg/L in coal gas wastewater described in step 1, and ammonia nitrogen is 100mg/L~150mg/L,
Total nitrogen is 120mg/L~170mg/L, and total phenol is 240mg/L~260mg/L, and volatile phenol concentration is 100mg/L~150mg/L；
Two, air pump (8) are opened and are aerated the valve being in charge of on (17), the dissolved oxygen for adjusting the coal gas wastewater in pond body (16) is dense
Degree is 0.3mg/L~0.5mg/L, then opens the valve and electromagnetic pump on mud return line branch pipe (7-1), conditioning of mud reflux ratio
It is 100%~300%；
Three, at the water inlet (1) of pond body (16) to adding biofilm packing in pond body (16), the dosage of biofilm packing with
The volume ratio of pond body (16) interior coal gas wastewater is (110g~150g):1L, in pond body (16) sludge concentration be 5000mg/L~
6000mg/L；
Four, the hydraulic detention time of coal gas wastewater is 40h~60h, the coal gas wastewater that obtains that treated；Coal system that treated
Gas waste water is discharged from the outlet pipe (6-5) of sedimentation basin.
10. according to claim 9 handle coal gas wastewater using a kind of micro- oxygen environment moving-bed biofilm reaction unit
Method, it is characterised in that biofilm packing described in step 3 is prepared according to the following steps：
One, it pre-processes：
Filler is cleaned using deionized water, until the pH value of cleaning solution is 7, then the filler after deionized water is cleaned is in temperature
Degree is to dry at 100 DEG C~105 DEG C, the filler after being cleaned；
Filler described in step 1 is coal ash, and partial size is 5mm~10mm；；
Two, the filler after cleaning is add to deionized water, is uniformly mixed, obtains the mixed liquor containing filler；In stirring speed
Degree is the H for the use of concentration being 3mol/L~4mol/L under 500r/min~800r/min2SO4By the pH of the mixed liquor containing filler
Value is adjusted to 2, then stands, and removes solvent, then dry at being 100 DEG C~105 DEG C in temperature, obtains the modified filler of acid；
Three, acid modified filler, attapulgite and Powdered Activated Carbon are uniformly mixed, add distilled water, after mixing evenly, obtains
To mixture；Mixture is put into the banded extruder that aperture is 5mm~10mm and carries out extrusion, then the item of extrusion is cut into length
For 10mm~15mm, the item that length is 10mm~15mm is aged 2h~4h at room temperature, then in the case where temperature is 105 DEG C~110 DEG C
1h~2h is dried, then roasts 3h~3.5h at being 500 DEG C~550 DEG C in temperature, the filler after being roasted；
The quality of the modified filler of acid described in step 3 and the volume ratio of distilled water are (40g~45g):35mL；
The quality of attapulgite described in step 3 and the volume ratio of distilled water are (25g~30g):35mL；
The quality of Powdered Activated Carbon described in step 3 and the volume ratio of distilled water are (30g~354g):35mL；
Four, oxalic acid is added into the iron nitrate solution that concentration is 0.1mol/L, obtains maceration extract；Filler after roasting is immersed in
20h~28h is impregnated in maceration extract, then is filtered, and maceration extract, the filler after being impregnated are removed；Filler after dipping is existed
Temperature is 10h~12h to be dried at 80 DEG C~110 DEG C, then dry 2h~4h at being 100 DEG C~120 DEG C in temperature, finally in temperature
It is roasting 3h~3.5h at 350 DEG C~360 DEG C, obtains biofilm packing；
The volume ratio for the iron nitrate solution that the quality of oxalic acid described in step 4 and concentration are 0.1mol/L be (0.5g~
0.7g):50mL。
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| CN115893665A (en) * | 2022-11-29 | 2023-04-04 | 水艺环保集团股份有限公司 | Biochemical low-temperature sewage treatment device of electric flocculation coupling anaerobic aeration biological fluidized bed |
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