CN107698025A - Integrated sewage water denitrification dephosphorization apparatus - Google Patents

Integrated sewage water denitrification dephosphorization apparatus Download PDF

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Publication number
CN107698025A
CN107698025A CN201711089279.5A CN201711089279A CN107698025A CN 107698025 A CN107698025 A CN 107698025A CN 201711089279 A CN201711089279 A CN 201711089279A CN 107698025 A CN107698025 A CN 107698025A
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China
Prior art keywords
housing
water
sludge
ring
vertical cylinder
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CN201711089279.5A
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CN107698025B (en
Inventor
蒋剑虹
尹疆
唐清畅
罗友元
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China Machinery International Engineering Design and Research Institute Co Ltd
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China Machinery International Engineering Design and Research Institute Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/30Aerobic and anaerobic processes
    • C02F3/301Aerobic and anaerobic treatment in the same reactor
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/30Aerobic and anaerobic processes
    • C02F3/308Biological phosphorus removal
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/105Phosphorus compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/16Nitrogen compounds, e.g. ammonia
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/30Organic compounds
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

Abstract

Integrated sewage water denitrification dephosphorization apparatus.There is housing (1), the vertical cylinder of outer layer (2) is located at the ring-type mud-water separating area (4) formed in housing between housing wall and connected with delivery port (1d);The vertical cylinder of internal layer (3) is located in housing, current rising passway (5) upper and lower accent of its inner chamber communicates with current direction lower channel (6) top and the bottom on the outside of it respectively, and the import of ring-type mud-water separating area communicates with current direction lower channel middle and lower part;Sludge accumulation area (7) below the vertical cylinder of internal layer communicates with the water inlet (1a) and mud discharging mouth (1b) of housing cavity bottom wall;Sludge pump (8a) in efflux aerator (8) is connected with the aerator (8b) positioned at the vertical cylinder lumen middle and lower part of internal layer by pipe fitting (8c), ejector (8d) on pipe fitting is connected with control valve (8f) air inlet pipe (8e) lower end, and sludge pump inlet communicates with sludge accumulation area.With improve treatment effect and it is stable the characteristics of.

Description

Integrated sewage water denitrification dephosphorization apparatus
Technical field
The present invention relates to technical field of biological sewage treatment, specially a kind of integrated sewage water denitrification dephosphorization apparatus.
Background technology
Sewage Biological Treatment, which refers to, is removed the pollutants such as the organic matter in sewage, nitrogen, phosphorus, SS using the metabolism of microorganism Remove, be purified sewage.The necessary condition for realizing bio-denitrifying sewage dephosphorization is to create anaerobism, anoxic and aerobic environment.
Publication No. CN104150589A, application number 201410421119.6 document disclosed in a kind of " integration is without ladder Spend activated sludge sewage-treatment plant ", its structure includes the housing for vertical cylinder, and it is vertical to be provided with outer layer in the housing cavity Cylinder and the vertical cylinder of internal layer, the vertical cylinder of outer layer (i.e. so-called " three phase separator ") are located at housing cavity top, and described Ring-type mud-water separating area is formed between housing wall, ring-type mud-water separating area top is provided with discharge outlet;The vertical cylinder of internal layer is (i.e. So-called " enhancing tube ") inner chamber be current rising passway, the chamber on the outside of the vertical barrel wall of internal layer is current direction lower channel, interior Upper and lower part of the upper and lower nozzle of the vertical cylinder of layer respectively with the current direction lower channel communicates, and forms the water in the housing Flow circulation canal;Ring-type mud-water separating area between the vertical barrel wall of the outer layer and housing wall with the current direction lower channel Portion communicates;Wastewater inlet is set in the middle part of the vertical walls of the housing, and the middle and lower part of housing vertical walls is set (i.e. below wastewater inlet) Sludge outlet is put, the lower end of the vertical cylinder lumen of internal layer sets air diffuser, by air line and is located at outside housing The air pump connection in portion.The air that the processing unit is provided using air pump is discharged by diffuser, to sewage oxygenation and shape Make water circulation passage internal circulation flow of the sewage in housing into lifting effect, realize sewage purification.Its deficiency is:1) due to Air diffuser is located at the lower end of vertical internal layer cylinder inner chamber, and water inlet and sludge outlet are in the vertical walls of housing (top of housing lower cone section), first, water inlet and sludge outlet communicate with the circular passage under current direction, in operation, institute The sewage of entrance and the sludge of discharge with the current flowed in circular passage is in dynamic admixture in the region, i.e., Without obvious high concentration sludge accumulation regions, the pollutant in sewage is difficult to the suction-operated for obtaining high concentration sludge and absorption effect Fruit;Second, the sludge concentration of sludge outlet discharge is low, it is unfavorable for the processing of follow-up sludge;Third, water inlet and sludge outlet are set In in the vertical walls of housing central section and middle and lower part, be present sludgd deposition and hardened phenomenon in its housing cavity bottom section, and examining When repairing the component of housing and inner chamber, it is impossible to be directly vented the mud mixture of housing cavity bottom by outlet, be not easy to The maintenance and repair of equipment.2) due to the device it is single using air pump provide air be used as to sewage oxygenation and current lifted and The power flowed in circulation canal, the contradiction of lifting power and oxygenation capacity be present, when with the change of influent quality, water Change, when dissolved oxygen concentration is too high in housing, it is desirable to reduce air capacity, and reducing air capacity can cause to lift power reduction, lifting Power is reduced the muddy water mixed effect in the rate of circulating flow and mixed liquor that influence sewage, so as to influence treatment effect, works as housing When interior dissolved oxygen concentration is too low, air capacity need to be increased, air capacity can cause to lift power increase, lifting power increase when increasing When can strengthen muddy water mixing intensity, and excessive muddy water mixing intensity can restrict the formation of active pollution index, water in device Each region of stream circulation canal is difficult to the concentration difference for producing dissolved oxygen, it is difficult to which formation is obvious in device, has certain flow time Anaerobism, anoxic and aerobic alternate environment, so as to influence Nitrogen/Phosphorus Removal, therefore be unfavorable for the stable operation of operation process. In addition, the entrance in ring-type mud-water separating area lower end, the upper plate inner side summit of the import is covered under it in vertical direction The inner side summit of plate, in operation, for nitrogen caused by anti-nitration reaction in uphill process, the upper plate of the import can be by portion Divide nitrogen to import in ring-type mud-water separating area (three-phase separation area), the mud-water separation effect in the Disengagement zone is influenceed, so as to influence SS is removed;The delivery port of the device directly communicates with ring-type mud-water separating area top, easily causes the short stream of water outlet and influences muddy water The mud-water separation effect of Disengagement zone.
The content of the invention
The purpose of the present invention is to propose to which treatment effect and stable integrated sewage water denitrification dephosphorization apparatus can be improved, tool Active sludge absorption, anaerobism, aerobic and anoxic environment, can effectively remove organic matter, nitrogen, phosphorus, the SS in sewage, at raising Manage effect.
The technical scheme of goal of the invention is realized, referring to Fig. 1:
The present invention includes the housing 1 of vertical cylinder;
Intracavitary is provided with the vertical cylinder 2 of outer layer and the vertical cylinder 3 of internal layer in the housing 1;
The ring-type positioned at the housing middle and upper part is formed between the barrel wall and the housing wall of the vertical cylinder 2 of outer layer Mud-water separating area 4, the top of ring-type mud-water separating area 4 connect with delivery port 1d;
The inner chamber of the vertical cylinder 3 of internal layer is current rising passway 5, and the chamber on the outside of the vertical wall of cylinder 3 of internal layer is water Flowing to lower channel 6, the upper and lower part of the upper and lower accent of the vertical inner chamber of cylinder 3 of internal layer respectively with the current direction lower channel 6 communicates, Form water circulation passage i.e. in the housing 1, the import 4a of the ring-type mud-water separating area 4 positioned at housing middle and upper part and The middle and lower part of current direction lower channel 6 on the outside of the vertical wall of cylinder 3 of internal layer communicates;
The lower section of the vertical lower end of cylinder 3 of internal layer is that the intracavity bottom of housing 1 is provided with sludge accumulation area 7;
The bottom wall of inner cavity of housing 1 be provided with water inlet 1a and mud discharging mouth 1b, water inlet 1a and mud discharging mouth 1b respectively with institute Sludge accumulation area 7 is stated to communicate;
Provided with efflux aerator 8, efflux aerator 8 includes sludge pump 8a and in the vertical cylinder 3 of the internal layer The aerator 8b, the sludge pump 8a of chamber middle and lower part outlet are connected with the entrance of the aerator 8b by pipe fitting 8c, sludge pump 8a muddy water import connects with the sludge accumulation area 7, and the pipe fitting 8c is provided with ejector 8d, and the air on ejector 8d enters Mouth connection air inlet pipe 8e lower end, air inlet pipe 8e tops are provided with the control valve 8f of adjustable air inlet amount, the ejector work The negative pressure made under state sucks the air from air inlet pipe;The power that sludge pump 8a in efflux aerator 8 is provided makes High concentration sludge, sewage in sludge accumulation area 7 and the air for coming from air inlet pipe 8e, carried out by ejector 8d fully mixed Close, be aerated after turbulent flow cutting by aerator 8b into the epimere inner chamber (i.e. aerobic zone) of the vertical cylinder 3 of internal layer, be aerobic environment Under processed sewage activated sludge and oxygenation are provided, while the flowing for being current in circulation canal provides power.
It is further:
Aerator 8b in the efflux aerator 8 is located at the structure of the vertical inner chamber middle and lower part of cylinder 3 of the internal layer, i.e., The downward region composition effect of water stream channel (the epimere inner chamber of the vertical cylinder 3 of internal layer) and flow direction-changing above aerator 8b In the aerobic zone of sewage, water stream channel region composition effect on the outside of the vertical cylinder 3 of internal layer, connecting with the aerobic zone tail end Region that is below the anoxic zone of sewage, aerator 8b and connecting with the anoxic zone tail end forms and acts on detesting for sewage Oxygen area, anaerobic zone tail end connect with the front end of the aerobic zone, and the sludge accumulation area 7 is located in described anaerobic zone, i.e. institute The structure that the aerator 8b in efflux aerator 8 is located at the vertical inner chamber middle and lower part of cylinder 3 of the internal layer is stated, in the housing 1 Act on sewage and end to end sludge absorption area/anaerobic zone, anoxic zone and aerobic are formed in interior water circulation passage Area, i.e., outside necessary in so-called bio-denitrifying sewage dephosphorization processing procedure is met " anaerobism, anoxic, aerobic " environment, in anaerobism Area also carries out high-concentration activated sludge absorption to the pollutant in sewage, realizes in the water circulation passage in the housing 1 Circulation again and again is formed to sewage and carries out activated sludge absorption/anaerobic organism reaction, aerobe reaction, anoxic biology instead Should.
The top of housing 1 communicates provided with ring-type water collecting dike 1c, ring-type water collecting dike 1c with the top of ring-type mud-water separating area 4, There is described delivery port 1d on ring-type water collecting dike 1c, i.e. the top of ring-type mud-water separating area 4 passes through the ring-type water collecting dike 1c and institute The delivery port 1d connections stated.
The import 4a is located at the lower end of the ring-type mud-water separating area 4, and the lower section of the import 4a is set by upper and lower two The component 10 that swash plate plate end is connected, declined board is tilting upwards, and inclined board is tilting downwards, the outer end of the upper declined board with it is described The inwall connection of housing, the inner side summit after the inner connection of upper and lower two swash plate protrude from described import 4a and be located at into Below mouth 4a, tilting declined board can stop that the nitrogen of lower section anoxic zone anti-nitration reaction generation separates out formation from water upwards Bubble enters in ring-type mud-water separating area 4, and avoiding the bubble from entering influences mud-water separation effect in ring-type mud-water separating area 4.
Course of work principle of the present invention and effect:
During working continuously, processed sewage by water inlet 1a enter the intracavity bottom of housing 1 and be anaerobism ring The sludge accumulation area 7 in border, sewage under high-concentration activated sludge and anaerobic environment first by carry out activated sludge absorption and The biological treatment of anaerobic environment, high-concentration activated sludge adsorbs to the pollutant in sewage, and removes the portion in sewage Divide organic matter and SS and part nitrogen, phosphorus, so as to reduce the pollutant concentration in the sewage of subsequent treatment, accordingly improve dress The capacity of resisting impact load and treatment effect put, meanwhile, high-concentration activated sludge consumes dirty Organic substance in water under anaerobic environment And phosphorus is discharged, the anaerobic phosphorus release reaction of Sewage Biological Treatment is realized, is that the aerobic environment biological phosphate-eliminating of subsequent processes is created Condition;Sewage after high concentration sludge suction-operated and anaerobic phosphorus release, it is upward in the presence of the efflux aerator 8 Flowing, into the aerator 8b above aerobic zone carry out aerobic environment biological treatment, provide work by efflux aerator 8 Property sludge and air, air are oxygenated and are stirred to sewage, and improve the activated sludge concentration of aerobic zone, are in aerobic environment Sewage be sufficiently mixed with activated sludge, activated sludge is realized degraded to the organic matter in sewage and removed, while carries out nitre Change reaction and aerobic biological phosphate-eliminating, ammonia nitrogen in sewage is converted into nitrate nitrogen and nitrite nitrogen by nitration reaction, so as to good Oxygen area further removes organic matter, ammonia nitrogen and phosphorus in sewage, and is created conditions for follow-up anaerobic environment denitrification denitrogenation;Through well Sewage after being handled under oxygen environment, the biological treatment entered immediately under described anoxic zone progress anaerobic environment, activated sludge exist Anti-nitration reaction is carried out under anoxia condition, is converted into nitrate nitrogen and nitrite nitrogen while dirty Organic substance in water is consumed Nitrogen escapes from water, so as to remove total nitrogen and further organics removal;The mud mixture handled through anaerobic environment, by institute The import 4a for stating the bottom of ring-type mud-water separating area 4 enters ring-type mud-water separating area 4 and carries out mud-water separation, i.e., by activated sludge from dirt Separated in water, remove the SS in sewage, the water after separation then catchment by uniform overflow to the ring-type on ring-type mud-water separating area top In the 1c of weir, until being discharged by delivery port, the activated sludge mixture after separation sinks down into the sludge accumulation of the housing bottom cavity Area 7, activity sludge reflux is realized, and high-concentration activated sludge is formed in sludge accumulation area;Intake is adjusted by control valve 8f Match with the flow of the mud mixture of sludge pump 8a outputs with flow velocity, required by realizing that aerobic zone, anoxic zone are run Dissolved oxygen concentration, produce the concentration difference of dissolved oxygen in each region of water circulation passage, formed it is obvious, have certain flow time Anaerobism, anoxic and aerobic alternate environment, sewage in the water circulation passage in the housing 1 again and again circulation carry out Activated sludge absorption/anaerobic organism reaction, aerobe reaction, anoxic biological respinse, realize effective removal of pollutant;Periodically Excess sludge and otherwise processed are discharged by mud discharging mouth 1b.
The technology of the present invention effect:
1st, because the present invention is provided with sludge accumulation area 7 in the intracavity bottom of housing 1 and is located in anaerobic environment region, and it is located at Water inlet 1a and mud discharging mouth 1b in shell bottom wall communicate with sludge accumulation area 7, one is so that the sewage entered enters first Row high-concentration activated sludge adsorbs and the biological treatment of anaerobic environment, and high-concentration activated sludge is i.e. to the partial contamination thing in sewage Adsorbed, and remove the partial organic substances in sewage and SS and part nitrogen, phosphorus, while activated sludge is under anaerobic environment Consumption Organic substance in water simultaneously discharges phosphorus, realizes the anaerobic phosphorus release reaction of Sewage Biological Treatment, is that the aerobic environment of subsequent treatment is given birth to Thing dephosphorization creates conditions, and the pollutant that suction-operated and the effect of high-concentration activated sludge are reduced in the sewage of subsequent treatment is dense Degree, wastewater treatment efficiency can be improved by accordingly improving the capacity of resisting impact load of device;The second is mud discharging mouth 1b and housing bottom cavity High concentration sludge accumulation regions communicate, the sludge concentration discharged is high, reduces difficulty and the processing of follow-up specific resistance to filtration Cost, and the mud mixture of the water inlet 1a and sludge pump 8a communicated in shell bottom wall with sludge accumulation area 7 muddy water import Stirring action is flowed, and regularly discharges sludge from bottom to avoid the hardened phenomenon of sludge, the maintenance workers of device can be reduced Measure;Third, mud discharging mouth 1b has the function of blow-down pipe concurrently, directly the mud mixture in housing chamber can be put by the mud discharging mouth Sky, be advantageous to the maintenance and repair of equipment and improve the operating efficiency of plant maintenance and maintenance.
2nd, because the present invention is provided with efflux aerator 8, first, the sludge pump 8a of efflux aerator 8, can gather sludge Ji Qu high concentration sludge is promoted to the aerobic zone above aerator 8b, to improve the activity of aerobic environment and follow-up anaerobic environment Sludge concentration, so as to improve treatment effect of the sewage under aerobic and anaerobic environment;Second, elevated high concentration activity is dirty Mud, sewage are sufficiently mixed with the air from air inlet pipe 8e through ejector 8d effects, when flowing through ejector 8d, are produced just The drastic shift of negative pressure is pressed to, produces fluid turbulence cutting and syncretizing effect, big particle diameter sludge flco is cut into small particle dirt Mud flco, increase the specific surface area of sludge flco, exist simultaneously because suction function sucks the air containing oxygen and increases oxygen Solubility in sewage, then by aerator 4d upwards injection to aerobic zone, realized in aerobic zone air and sludge, sewage it is mixed Close and flow, sludge, the mixing of dirty water and air and mass transfer effect can be improved, accelerate pollutant oxidation to improve to pollutant Removal effect, so as to improve the clearance of wastewater pollutants;Third, air inlet pipe 8e is provided with adjustable in efflux aerator 8 The control valve 8f of air inflow, adjusted by control valve 8f intake and the sludge pump 8a output mud mixture flow with Flow velocity matches, and realizes the required dissolved oxygen concentration in aerobic zone, anoxic zone operation, be advantageous to active pollution index formation and Each region of water circulation passage produces the concentration difference of dissolved oxygen in device, forms anaerobism that is obvious, having certain flow time, lacks Oxygen and aerobic alternate environment, so as to improve Nitrogen/Phosphorus Removal, the stable operation of the present invention is realized, it is single to overcome background technology Using the air that air pump provides as the lifting power and the deficiency of the contradiction of oxygenation capacity present in lifting power and oxygenation.
3rd, the import 4a of the lower end of ring-type mud-water separating area 4 lower section sets the structure being connected by upper and lower two swash plates plate end Part 10, declined board is tilting upwards, and inclined board is tilting downwards, and the inner side summit after the inner connection of upper and lower two swash plate protrudes from Described import 4a and below import 4a, tilting declined board can stop the anti-nitration reaction generation of lower section anoxic zone upwards The bubble that nitrogen separates out formation from water enters in ring-type mud-water separating area 4, avoids the bubble from entering ring-type mud-water separating area 4 Interior influence mud-water separation effect, is advantageous to improve the mud-water separation effect in ring-type mud-water separating area 4.
4th, the top of housing 1 communicates provided with ring-type water collecting dike 1c, ring-type water collecting dike 1c with the top of ring-type mud-water separating area 4, ring There is described delivery port 1d on shape water collecting dike 1c, i.e. the water outlet of ring-type mud-water separating area 4 initially enters ring-type water collecting dike by top In 1c, then discharged by delivery port 1d, because ring-type water collecting dike 1c there is regulation to make the water outlet from ring-type mud-water separating area 4 With achievable water uniformly goes out to flow, and can eliminate the short flow phenomenon of water outlet, be advantageous to the stabilization of running status, improve ring-type muddy water The mud-water separation effect of Disengagement zone 4, other pollutants of effluent SS and its carrying are reduced, so as to improve pollutants removal rate.
Other features possessed by the present invention will combine embodiment with effect and further illustrate.
The present invention is further described with reference to the accompanying drawings and detailed description.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention program;
Fig. 2 is Fig. 1 top view, and the housing 1 for schematically illustrating vertical cylinder is the vertical tube structure of toroidal;
The housing 1 that Fig. 3 illustrates vertical cylinder is the vertical tube structure of square shape.
Embodiment
Referring to accompanying drawing, the present invention includes the housing 1 for vertical cylinder;Intracavitary is provided with the vertical cylinder 2 of outer layer in the housing 1 Cylinder 3 vertical with internal layer;The vertical cylinder 2 of outer layer, which is located in housing 1 between intracavitary, with the housing wall, to be formed positioned at described The ring-type mud-water separating area 4 of housing middle and upper part, the top of ring-type mud-water separating area 4 connect with delivery port 1d;The vertical cylinder of internal layer The inner chamber of body 3 is current rising passway 5, and the chamber on the outside of the vertical wall of cylinder 3 of internal layer is current direction lower channel 6, the vertical cylinder of internal layer Upper and lower part of the upper and lower accent of the inner chamber of body 3 respectively with the current direction lower channel 6 is communicated, i.e., water is formed in the housing 1 Flow circulation canal, the import 4a positioned at the lower end of ring-type mud-water separating area 4 of housing middle and upper part and the vertical cylinder of the internal layer The middle and lower part of current direction lower channel 6 on the outside of wall communicates;The lower section of the vertical lower end of cylinder 3 of internal layer is that the intracavity bottom of housing 1 is set There is sludge accumulation area 7;The bottom wall of inner cavity of housing 1 is provided with 1b points of water inlet 1a and mud discharging mouth 1b, water inlet 1a and mud discharging mouth Do not communicated with the sludge accumulation area 7;The bottom of the vertical cylinder 2 of outer layer is the tubaeform knot towards the side wall of housing 1 Structure, referring to Fig. 1, the lower end of ring-type mud-water separating area 4 is formed between the lower end of the flared structure and the housing sidewall Import 4a.
In implementation, the housing 1 of the vertical cylinder can be the vertical tube structure of toroidal or be the vertical cylinder knot of square shape Structure, when the housing 1 is toroidal vertical tube structure, the vertical cylinder 2 of the outer layer and the vertical cylinder 3 of internal layer are preferably corresponding Toroidal structure, referring to Fig. 2, when the housing 1 is square shape vertical tube structure, the vertical cylinder 2 of the outer layer and internal layer Vertical cylinder 3 is preferably corresponding square shape structure, referring to Fig. 3.
In implementation, the bottom of housing 1 is conical structures, and the sludge accumulation area 7 is located at the bottom lower cone knot of housing 1 In structure in the anaerobism region of intracavitary, the water inlet 1a and mud discharging mouth 1b are the bottom wall positioned at the bottom lower cone inner chamber of housing 1 On, the conical structures of the bottom of housing 1 are advantageous to the aggregation of activated sludge and improve the activated sludge concentration in sludge accumulation area, and And water circulation passage can be eliminated at the region dead angle;The vertical cylinder 2 of outer layer and the vertical cylinder 3 of internal layer pass through the structures such as rod member respectively Part is connected with housing 1.
The lower end of the vertical cylinder 3 of internal layer is enlarging flared structure 9 directed downwardly, and the structure advantageously reduces sludge pump 8a run when its muddy water import to sludge accumulation area 7 with the influence of exterior domain.
Provided with efflux aerator 8, efflux aerator 8 includes sludge pump 8a and in the vertical cylinder 3 of the internal layer The aerator 8b, the sludge pump 8a of chamber middle and lower part outlet are connected with the entrance of the aerator 8b by pipe fitting 8c, sludge pump 8a muddy water import communicates with the sludge accumulation area 7, and the pipe fitting 8c is provided with three way type ejector 8d, three way type ejector The lower end of air intlet connection air inlet pipe 8e on 8d, air inlet pipe 8e tops are provided with the control valve 8f of adjustable air inlet amount, Negative pressure under the ejector working condition sucks the air from air inlet pipe, by the control valve 8f adjust intake with The flow of the mud mixture of the sludge pump 8a outputs matches with flow velocity, and it is required to realize that aerobic zone, anoxic zone are run Dissolved oxygen concentration, the power that the sludge pump 8a in efflux aerator 8 is provided make the high concentration sludge in sludge accumulation area, sewage With the air for coming from air inlet pipe 8e, it is sufficiently mixed by ejector 8d, is aerated after turbulent flow cutting by aerator 8b to enter Enter the epimere inner chamber (i.e. aerobic zone) of the vertical cylinder 3 of internal layer, provide activated sludge for the processed sewage under aerobic environment and fill Oxygen, while the flowing for being current in circulation canal provides power;In implementation, the air inlet pipe 8e can by the components such as rod member with Top is fixed on housing, and aerator 8b can be connected by the components such as rod member cylinder 3 vertical with internal layer;The aerator 8b quantity and arrangement form determines according to the sectional area of current rising passway 5.When the flow of the sewage entered by water inlet 1a Varied widely with pollutant concentration, in implementation, the frequency conversion for conditioning of mud pump 8a motor rotation speed changes can be set Device, by changing the rotating speed of the motor, the flow of sludge pump 8a output, lift is set to produce respective change with being adjusted Intake match.
Sludge pump 8a in shown in Fig. 1 is located at the hull outside, and the muddy water import of the sludge pump passes through sludge pipe 8g Connected with the sludge accumulation area 7 in anaerobic environment;In implementation, the sludge pump 8a in the efflux aerator 8 may be used also It is located in the sludge accumulation area 7 of the intracavity bottom of housing 1, sludge pump 8a is then Driving-mud Pump, under this structure, the diving sludge The muddy water import of pump directly communicates with the sludge accumulation area 7 in anaerobic environment, and the Driving-mud Pump can use self coupling Formula is installed on the intracavity bottom of housing 1, and the ejector 8d and air inlet pipe 8e can then be moved to the vertical cylinder 3 of internal layer by hull outside Interior intracavitary.
Aerator 8b in the efflux aerator 8 is located at the structure of the vertical inner chamber middle and lower part of cylinder 3 of the internal layer, i.e., The downward region of water stream channel (the epimere inner chamber of the vertical cylinder 3 of internal layer) and flow direction-changing above aerator 8b, which is formed, to be acted on The aerobic zone of sewage, the outside of the vertical cylinder of internal layer 3, the water stream channel region composition that connects with the aerobic zone tail end acts on The anoxic zone of sewage, region that is below aerator 8b and connecting with the anoxic zone tail end form the anaerobism for acting on sewage Area, anaerobic zone tail end connect with the front end of the aerobic zone, and the sludge accumulation area 7 is located in described anaerobic zone;When described When the bottom of housing 1 is conical structures, the sludge accumulation area 7 is the anaerobism positioned at intracavitary in the bottom conical structures of housing 1 In region, i.e., the aerator 8b in described efflux aerator 8 is located at the knot of the vertical inner chamber middle and lower part of cylinder 3 of the internal layer Structure, and formed in the water circulation passage in the housing 1 act on sewage sewage, end to end sludge absorption area/ Anaerobic zone, anoxic zone and aerobic zone, i.e., it is necessary in so-called bio-denitrifying sewage dephosphorization processing procedure is met " anaerobism, anoxic, It is aerobic " outside environment, the high-concentration activated sludge for being gathered in anaerobic zone bottom also adsorbs to the pollutant in sewage, and sewage exists Circulation again and again carries out activated sludge absorption/anaerobic organism reaction, aerobic life in water circulation passage in the housing 1 Thing reaction, anoxic biological respinse.
The top of housing 1 communicates provided with ring-type water collecting dike 1c, ring-type water collecting dike 1c with the top of ring-type mud-water separating area 4, Have described delivery port 1d on ring-type water collecting dike 1c, i.e., the top of ring-type mud-water separating area 4 by ring-type water collecting dike 1c with it is described Delivery port 1d is connected, and the water outlet on the top of ring-type mud-water separating area 4 is arranged after ring-type water collecting dike 1c regulations, then by the delivery port 1d Go out, the short flow phenomenon of water outlet can be eliminated, be advantageous to the stabilization of running status, improve the mud-water separation effect of ring-type mud-water separating area 4 Fruit, other pollutants of effluent SS and its carrying are reduced, so as to improve pollutants removal rate.
The import 4a is located at the lower end of the ring-type mud-water separating area 4, and the lower section of the import 4a is set by upper and lower two The component 10 that swash plate plate end is connected, declined board is tilting upwards, and inclined board is tilting downwards, the outer end of the upper and lower swash plate and institute The inwall connection of housing is stated, the inner side summit after the inner connection of upper and lower two swash plate protrudes from described import 4a and is located at Below import 4a, tilting declined board can stop that the nitrogen of lower section anoxic zone anti-nitration reaction generation separates out formation from water upwards Bubble enter ring-type mud-water separating area 4 in, avoid the bubble enter ring-type mud-water separating area 4 in influence mud-water separation effect Mud mixture in current direction lower channel 6 can be smoothly upwardly directed in mud-water separating area 4 by fruit, inclined board, and can will be The sludge completed mud-water separation in mud-water separating area 4 and sunk is directed downwardly toward sludge accumulation area 7.
Implementation structural formula described in above-mentioned specific embodiment party is not whole implementation knots under technical solution of the present invention Structure, other implementation structures based on technical solution of the present invention belong to the scope of the present invention.

Claims (9)

1. integrated sewage water denitrification dephosphorization apparatus, including the housing (1) for vertical cylinder;
The interior intracavitary of the housing (1) is provided with the vertical cylinder of outer layer (2) and the vertical cylinder of internal layer (3);
The ring-type mud positioned at the housing middle and upper part is formed between the barrel wall and the housing wall of the vertical cylinder of outer layer (2) Water Disengagement zone (4), ring-type mud-water separating area (4) top connect with delivery port (1d);
The inner chamber of the vertical cylinder of internal layer (3) is current rising passway (5), and the chamber on the outside of the vertical cylinder of internal layer (3) wall is Current direction lower channel (6), the upper and lower accent of the vertical cylinder of internal layer (3) inner chamber respectively with the current direction lower channel (6) it is upper, Bottom is communicated, i.e., water circulation passage, the ring-type mud-water separating area positioned at housing middle and upper part are formed in the housing (1) (4) import (4a) communicates with current direction lower channel (6) middle and lower part on the outside of the vertical barrel wall of the internal layer;
It is characterized in that:
The lower section of the vertical cylinder of internal layer (3) lower end is that housing (1) intracavity bottom is provided with sludge accumulation area (7);
Housing (1) bottom wall of inner cavity is provided with water inlet (1a) and mud discharging mouth (1b), water inlet (1a) and mud discharging mouth (1b) point Do not communicated with the sludge accumulation area (7);
Provided with efflux aerator (8), the efflux aerator (8) includes sludge pump (8a) and positioned at the vertical cylinder of the internal layer The aerator (8b) of body (3) inner chamber middle and lower part, the outlet of the sludge pump (8a) is with the entrance of the aerator (8b) by pipe fitting (8c) is connected, and the muddy water import of sludge pump (8a) communicates with the sludge accumulation area (7), and the pipe fitting (8c) is provided with ejector (8d), the lower end of the air intlet connection air inlet pipe (8e) on ejector (8d), air inlet pipe (8e) top are provided with adjustable enter The control valve (8f) of air capacity.
2. according to the integrated sewage water denitrification dephosphorization apparatus described in claim 1, it is characterized in that:The efflux aerator (8) In aerator (8b) be located at the vertical cylinder of the internal layer (3) inner chamber middle and lower part, i.e. the water circulation in the housing (1) is led to Acting on sewage and end to end anaerobic zone, anoxic zone and aerobic zone, the sludge accumulation area (7) is formed in road to be located at In described anaerobic zone.
3. according to the integrated sewage water denitrification dephosphorization apparatus described in claim 1, it is characterized in that:The bottom of the housing (1) is Conical structures, the sludge accumulation area (7) are located in the conical structures of housing (1) bottom in the anaerobism region of intracavitary, Described water inlet (1a) and mud discharging mouth (1b) are i.e. on the bottom wall of the housing (1) bottom conical structures inner chamber.
4. according to the integrated sewage water denitrification dephosphorization apparatus described in claim 1, it is characterized in that:Housing (1) top is provided with Ring-type water collecting dike (1c), ring-type water collecting dike (1c) communicate with ring-type mud-water separating area (4) top, on ring-type water collecting dike (1c) The delivery port (1d) stated, i.e. ring-type mud-water separating area (4) top pass through the ring-type water collecting dike (1c) and described delivery port (1d) is connected.
5. according to the integrated sewage water denitrification dephosphorization apparatus described in claim 1, it is characterized in that:The import (4a) is positioned at described The lower end of ring-type mud-water separating area (4), the lower section of import (4a) set the component (10) being connected by upper and lower two swash plates plate end, under Swash plate is tilting upwards, and inclined board is tilting downwards, and the outer end of upper declined board is connected with the wall of the housing, upper and lower two swash plate Inner side summit after the connection of the inner protrudes from described import (4a) and below import (4a), and tilting declined board can upwards The bubble that the nitrogen that anoxic zone anti-nitration reaction generates below stopping separates out formation from water enters ring-type mud-water separating area (4) It is interior.
6. according to the integrated sewage water denitrification dephosphorization apparatus described in claim 1, it is characterized in that:The vertical cylinder of internal layer (3) Lower end be enlarging flared structure directed downwardly (9).
7. according to the integrated sewage water denitrification dephosphorization apparatus described in claim 1, it is characterized in that:The efflux aerator (8) In sludge pump (8a) be located at that the housing (1) is outside, and the muddy water import of the sludge pump (8a) passes through sludge pipe (8g) and institute The sludge accumulation area (7) in anaerobic environment is stated to connect.
8. according to the integrated sewage water denitrification dephosphorization apparatus described in claim 1, it is characterized in that:The efflux aerator (8) In sludge pump (8a) be located at the housing (1) intracavity bottom and in anaerobic environment sludge accumulation area (7) in, the sludge Pump (8a) is Driving-mud Pump, the muddy water import of the Driving-mud Pump directly with the sludge accumulation area in anaerobic environment (7) communicate.
9. according to claim 1-8 any described integrated sewage water denitrification dephosphorization apparatus, it is characterized in that:Vertical cylinder Housing (1) be the vertical tube structure of square shape or the vertical tube structure of toroidal.
CN201711089279.5A 2017-11-08 2017-11-08 Integrated sewage denitrification and dephosphorization device Active CN107698025B (en)

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CN111995054A (en) * 2020-09-14 2020-11-27 兰州交通大学 Sewage treatment device

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