CN207276420U - A kind of urban sewage treatment system - Google Patents
A kind of urban sewage treatment system Download PDFInfo
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- CN207276420U CN207276420U CN201721178169.1U CN201721178169U CN207276420U CN 207276420 U CN207276420 U CN 207276420U CN 201721178169 U CN201721178169 U CN 201721178169U CN 207276420 U CN207276420 U CN 207276420U
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- sludge
- pipeline
- treatment system
- sewage treatment
- urban sewage
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Abstract
The utility model provides a kind of urban sewage treatment system, and the urban sewage treatment system includes the lift pump room being in fluid communication successively（2）, rotational flow grit chamber（4）, just sink oil separator（5）, oxidation ditch（6）, secondary sedimentation tank（7）, oxidant sterilization pool（8）；Lift pump room（2）Upstream fluid passage in be equipped with coarse rack（1）, the coarse rack（1）Including multigroup parallel metal grizzly bar in fluid passage.The utility model urban sewage treatment system uses oxidation ditch process, electricity unit consumption is than relatively low, and aerobic, anaerobism and precipitation one carry out, running environment is convenient to be controlled, and the basic item controlled such as treatment effect of Nitrogen/Phosphorus Removal and petroleum-type can reach the A standards of 2002 primary standards of urban sewage discharge standard GB18918.
Description
Technical field
A kind of sewage-treatment plant is the utility model is related to, more particularly to a kind of urban sewage treatment system.
Background technology
With the fast development in China city, environmental pollution phenomenon is also increasingly severe in quick development, and sewage
Processing occupies the pith of urban environmental protection.At present, in city the method for treated sewage also from pollution administration source and dirt
Dye thing develops into the overall control that pollutant is carried out based on environment.The capital quantity that treated sewage needs hands over big, the field of occupancy
Ground area is more wide, relatively low, treated sewage scale facility is larger in terms of the cost of processing, operational effect is stable and
The utilizing status of recycled water is not high.
To adapt to the new requirement of water environment protection engineering, country is to urban sewage discharge standard GB18918-2002 level-one marks
Accurate A standards are as shown in the table：
The outer numerical value of table bracket for 12 DEG C of water temperature ＞ when Con trolling index, control when numerical value is water temperature≤12 DEG C in bracket
Index.
Level-one A standards are the basic demands that urban wastewater treatment firm water outlet may be used as recycle-water.Dilution capacity is less
River and lake introduces sewage disposal plant effluent, as general recycle-water, townscape water when purposes, performs level-one A standards.
And sewage plant is arranged on to the middle and lower reaches in city in China most cities at present, by being intercepted by pipe network or
Flow by gravity by sewage transport to sewage treatment plant, and by the discharge into water after processing into natural water, if original
The efficiency of reuse of wastewater is improved in Equipment Foundations, it is necessary to the laying of pipeline is re-started in urban inner, and will place
The recycled water of reason sewage, which is transported in city, to be used in city in daily life, and it is dirty that this mode can increase city processing
The expense of waterworks construction entirety, and substantial amounts of land resource can be taken, further increase the cost of operation.
Utility model content
In view of the foregoing deficiencies of prior art, the purpose of this utility model is to provide a kind of municipal sewage treatment system
System, it is larger for solving sewage disposal device in the prior art, it is of high cost, it is laid out the problem of unreasonable.
In order to achieve the above objects and other related objects, the utility model provides a kind of urban sewage treatment system, described
Lift pump room that urban sewage treatment system includes being in fluid communication successively, rotational flow grit chamber, the oil separator, oxidation ditch, secondary of just sinking
Sedimentation basin, oxidant sterilization pool；Coarse rack is equipped with the fluid passage of the upstream of lift pump room, the coarse rack includes being arranged on stream
Multigroup parallel metal grizzly bar in body passage.
In a preferred embodiment, the angle of the metal grizzly bar and fluid flow direction is 60~70 °.
In a preferred embodiment, water pump is included successively along the processing direction of municipal sewage, the lift pump room
And collecting-tank, either passage or irrigation canals and ditches connect the collecting-tank with the pipeline on inflow direction, the pipe on the inflow direction
Either passage or irrigation canals and ditches are equipped with the water pump for being used for increasing hydraulic pressure in road；The collecting-tank passes through pipeline with the rotational flow grit chamber
Connection.
In a preferred embodiment, the fluid passage between the lift pump room and the rotational flow grit chamber is equipped with
The thin grid；The thin grid includes the multigroup parallel metal grizzly bar being arranged in sewage routeway, and the metal grizzly bar
It is obliquely installed in fluid passage.
In a preferred embodiment, the urban sewage treatment system is included between sludge concentration tank and sludge dewatering；
Connected between the bottom of the just heavy oil separator and the sludge concentration tank by pipeline；The sludge concentration tank and the sludge
Connected between dehydration by pipeline, in sludge concentration tank sludge by pipeline enter the sludge dewatering between middle dehydration.
In a preferred embodiment, between the sludge concentration tank and the sludge dewatering respectively with the coarse rack
Upstream fluid passageway is connected by pipeline；Middle generation between the supernatant produced in the sludge concentration tank and the sludge dewatering
In upstream passageway of the filtrate by pipeline to coarse rack.
In a preferred embodiment, the secondary sedimentation tank uses rectangular sedimentation tank.
In a preferred embodiment, the bottom of secondary sedimentation tank is connected with secondary sludge pond by pipeline, and described two
Excess sludge in secondary sedimentation basin is entered in secondary sludge pond by pipeline.
In a preferred embodiment, connected between the secondary sedimentation tank and the oxidation ditch by pipeline；It is described
The activated sludge of part is back in oxidation ditch by pipeline in secondary sedimentation tank recycles.
In a preferred embodiment, connected between the secondary sludge pond and the sludge concentration tank by pipeline
Logical, the sludge in the secondary sludge pond is entered in the sludge concentration tank by pipeline.
As described above, the urban sewage treatment system of the utility model, has the advantages that：
The utility model urban sewage treatment system uses oxidation ditch process, and electricity unit consumption is than relatively low, and aerobic, anaerobism
Carried out with precipitation one, running environment is convenient to be controlled, the basic control item such as treatment effect of Nitrogen/Phosphorus Removal and petroleum-type
Mesh can reach the A standards of urban sewage discharge standard GB18918-2002 primary standards；And the city in the application is dirty
Water treatment system can be handled no more than 70000m3The sewage scale of/d, and its floor space is moderate, it is easy to maintenance quick,
The degree of automation is higher, is adapted to regional sewage processing in city to use.
Brief description of the drawings
Fig. 1 is shown as the structure diagram of urban sewage treatment system in the utility model
Element numbers in Fig. 1 are as follows
1 coarse rack
2 lift pump rooms
3 fine facks
4 rotational flow grit chambers
Heavy oil separator at the beginning of 5
6 oxidation ditches
7 secondary sedimentation tanks
8 oxidant sterilization pools
9 sludge concentration tanks
Between 10 sludge dewaterings
11 secondary sludge ponds
Embodiment
Illustrate the embodiment of the utility model by particular specific embodiment below, those skilled in the art can be by this
Content disclosed by specification understands other advantages and effect of the utility model easily.
Please refer to Fig.1.It should be clear that structure, ratio, size depicted in this specification institute accompanying drawings etc., only coordinating
The revealed content of specification, so that those skilled in the art understands and reads, being not limited to the utility model can be real
The qualifications applied, therefore do not have technical essential meaning, the tune of the modification of any structure, the change of proportionate relationship or size
It is whole, in the case where not influencing the effect of the utility model can be generated and the purpose that can reach, should all still fall in the utility model institute
The technology contents of announcement are obtained in the range of covering.Meanwhile in this specification it is cited as " on ", " under ", "left", "right",
The term of " centre " and " one " etc., is merely convenient to understanding for narration, and is not used to limit the enforceable scope of the utility model,
Its relativeness is altered or modified, in the case where changing technology contents without essence, when being also considered as the enforceable category of the utility model.
As shown in Figure 1, the utility model provides a kind of urban sewage treatment system, the urban sewage treatment system includes
The lift pump room 2 that is in fluid communication successively, rotational flow grit chamber 4, just heavy oil separator 5, oxidation ditch 6, secondary sedimentation tank 7, oxidant disappear
Malicious pond 8；Coarse rack 1 is equipped with the fluid passage of 2 upstream of lift pump room, the coarse rack 1 includes being arranged on more in fluid passage
The parallel metal grizzly bar of group.The metal grizzly bar is obliquely installed in irrigation channel or pipeline.Preferably, the metal gate
The angle of bar and fluid flow direction is 60~70 °.It is highly preferred that the grid distance of the coarse rack is 16~25mm.Thick lattice
Grid are used to intercept the thicker floating material for blocking water pump assembly and pipeline valve, ensure that subsequent treatment facility can be transported normally
OK.
Fluid passage in the application can be the channels for fluid passage of pipeline or channel other forms.
Preferably, water pump and collecting-tank, the collecting-tank are included successively along fluid flow direction, the lift pump room 2
Either passage or irrigation canals and ditches connect with the pipeline on inflow direction, it is described come waterpipe or irrigation canals and ditches or passage be equipped with and be used to increase
The water pump of hydraulic pressure；The collecting-tank is connected with the rotational flow grit chamber 4 by pipeline.It is highly preferred that the water pump is arranged on described
Outside collecting-tank.The collecting-tank be used for adjust after water pump increase by the sewage in underground sewer or channel or passage
Come water and enter rotational flow grit chamber 4 water yield between balance, maintain the stabilization of water yield, avoid water pump from frequently opening
It is dynamic.In the processing of municipal sewage, in extensive sewage relatively low pipeline located underground or passage, when carrying out sewage disposal,
Need to use water pump in pump house will to be pressurized so that sewage is capable of providing to certain altitude, the water pump is used to pressurize to fluid, association
Fluid is helped to be delivered to certain altitude.
Preferably, thin grid 3 is equipped with the fluid passage between the lift pump room 2 and the rotational flow grit chamber 4, it is described
Thin grid 3 includes the multigroup parallel metal grizzly bar being arranged in fluid passage, and the metal grizzly bar is obliquely installed in fluid
In passage.Preferably, the metal grizzly bar and the angle in drainage flow direction are 60~70 °.Thin grid is used to remove in fluid
Debris.Preferably, the grid distance of thin grid is 2~5mm.Grid distance is the distance of two grid medial surfaces.Preferably, exist
In municipal sewage treatment, sewage is due to gravity and the gravity stream that is formed after fine fack 3.
In the application, the rotational flow grit chamber 4 can include pond body, and agitating device, the stirring are typically provided with pond body
Device can be axial screw paddle, and the axial screw paddle can control flow-shape and flow velocity, acceleration grit by mechanical force
Precipitation separation fool, and cause organic matter taken out of with water outlet current outside pond.
Just heavy oil separator 5 is to utilize the oleaginous material or suspended matter in oil separator precipitation sewage.The just heavy oil separator 5 is logical
Can be often pond body, it is different from the proportion of water using oleaginous material in sewage or suspended matter and reaches separating effect, so that
The oleaginous material or suspended matter that can make the lighter and upper floatation surface of proportion are removed by oil sump tank or Oil scraper；In first heavy oil separator
In the heavy oil that precipitates and other impurities, accumulate to bottom of pond and form sludge and be discharged into sludge passage；And pass through just heavy oil separator and give up
Water overflow enters next step treatment process.
Oxidation ditch 6 is a kind of active sludge processing system, its aeration tank is in the irrigation canals and ditches type closed, so it is in hydraulic flow state
It is upper to be different from traditional activated sludge process, it is a kind of end to end recycle stream aeration irrigation canals and ditches, passes through the exposure with direction controlling
Gas and mixing apparatus so that sewage and activated sludge constantly circulate in channel is aerated, and pass through extended aeration, Inlet and outlet water dress
Continuous flow is put, while saving floor occupying area, organic loading is low, hydraulic detention time length.Oxidation ditch can effectively be gone
Except the biochemical oxygen demand (BOD) of the nitrogenous phosphorus-containing matter matter in sewage, effectively reduction sewage.
Preferably, the urban sewage treatment system can also include 10 between sludge concentration tank 9 and sludge dewatering；
The bottom of the just heavy oil separator 5 is connected with the sludge concentration tank 9 between by pipeline so that just heavy oil removal
The sludge produced in pond 5 enters in sludge concentration tank 9；
The sludge concentration tank 9 is connected between the sludge dewatering 10 by pipeline, the sludge produced in sludge concentration tank 9
Discharge is dehydrated after between sludge dewatering 10；
10 upstream fluid passageway respectively with the coarse rack 1 passes through between the sludge concentration tank 9 and the sludge dewatering
Pipeline connects, 10 between the supernatant produced in the sludge concentration tank 9 and the sludge dewatering in the filtrate that produces pass through pipeline
It is delivered in the upstream fluid passageway of coarse rack 1.
It is logical between the bottom of the just heavy oil separator 5 and the sludge concentration tank 9 in a preferred embodiment
Road is equipped with sludge pump.The sludge pump is used to provide power, promotes the sludge in just heavy oil separator 5 to enter the sludge condensation
In pond 9.
Preferably, the secondary sedimentation tank 7 uses rectangular sedimentation tank.It is mainly so that sludge separates so that mixing
Liquid clarification, concentration and returnedactivatedsludge.
In a preferred embodiment, the bottom of the secondary sedimentation tank 6 is connected with secondary sludge pond by pipeline
11, the excess sludge in the secondary sedimentation tank 7 is entered in secondary sludge pond 11 by pipeline.
In a preferred embodiment, connected between the secondary sedimentation tank 7 and the oxidation ditch 6 by pipeline；
The activated sludge of part is back in oxidation ditch 6 by pipeline in the secondary sedimentation tank 7 recycles.It is preferred at one
In embodiment, the pipeline between the secondary sedimentation tank 7 and the oxidation ditch 6 is equipped with sludge reflux pump.The sludge reflux
Pump promotes the sludge in secondary sedimentation tank 7 smoothly to enter reuse in the oxidation ditch 6 for providing power.
In a preferred embodiment, connected between the secondary sludge pond 11 and the sludge concentration tank 9 by pipeline
Logical, the sludge in the secondary sludge pond 11 is entered in the sludge concentration tank 9 by pipeline.In a preferred embodiment
In, the pipeline between the secondary sludge pond 11 and the sludge concentration tank 9 is equipped with sludge pump.The sludge pump is used to provide
Power so that the sludge in secondary sludge pond 11 smoothly enters in the sludge concentration tank 9.
Dotted line in figure represents that the path of connection is interrupter duty；According to actual conditions in operation and need to determine when
Remove excess sludge and when returnedactivatedsludge.
It is to the high bulky sludge thickening of moisture content in sludge concentration tank 9 in the application, reduces moisture content and reduce volume,
Easy to the processing to sludge, utilization and transport.General sludge condensation is commonly used by gravity concentration, floatation thickening and centrifugal concentrating.
10 be that further removing moisture solution is carried out to the sludge after concentration between sludge dewatering in the application, is converted into
Semisolid or solid-state clod.Generally use nature desiccation, mechanical dehydration and comminution granulation.
Preferably, oxidant sterilization pool 8 is usually pond body, and the oxidant sterilization pool 8 passes through with the secondary sedimentation tank 7
Pipeline connects, and the oxidant sterilization pool 8 is used to receive the sewage in the secondary sedimentation tank 7 after precipitation, and will
Sewage carries out oxidation sterilizing processing in oxidant sterilization pool.It is highly preferred that chlorine dioxide conduct is selected in oxidant sterilization pool
Final oxidant and disinfectant.The usage amount of chlorine dioxide is 50~80mg/L.
The water that oxidized dose of sterilization pool 8 discharges is the A for reaching urban sewage discharge standard GB18918-2002 primary standards
The water of standard.It can be discharged according to the rules.
In conclusion the utility model urban sewage treatment system uses oxidation ditch process, electricity unit consumption than relatively low, and
Aerobic, anaerobism and precipitation one carry out, and running environment is convenient to be controlled, the base such as treatment effect of Nitrogen/Phosphorus Removal and petroleum-type
This item controlled can reach the A standards of urban sewage discharge standard GB18918-2002 primary standards；And in the application
Urban sewage treatment system can handle no more than 50000m3The sewage scale of/d, and its floor space is moderate, maintenance side
Just quick, the degree of automation is higher.So the effectively middle urban sewage treatment system of the utility model overcome it is of the prior art
Various shortcoming and have high industrial utilization.
The above embodiments are only illustrative of the principle and efficacy of the utility model, new not for this practicality is limited
Type.Any person skilled in the art can all carry out above-described embodiment under the spirit and scope without prejudice to the utility model
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the revealed essence of the utility model
God and all equivalent modifications completed under technological thought or change, should be covered by the claim of the utility model.
Claims (10)
1. a kind of urban sewage treatment system, it is characterised in that the urban sewage treatment system includes what is be in fluid communication successively
Lift pump room (2), just rotational flow grit chamber (4), heavy oil separator (5), oxidation ditch (6), secondary sedimentation tank (7), oxidant sterilization pool
(8)；Coarse rack (1) is equipped with the fluid passage of the upstream of lift pump room (2), the coarse rack (1) includes being arranged on fluid passage
In multigroup parallel metal grizzly bar.
2. urban sewage treatment system according to claim 1, it is characterised in that：The metal grizzly bar and fluid flowing side
To angle be 60~70 °.
3. urban sewage treatment system according to claim 1, it is characterised in that：It is described to carry along fluid flow direction
Rise pump house (2) includes water pump and collecting-tank successively, and either passage or irrigation canals and ditches connect the collecting-tank with the pipeline on inflow direction
Logical, either passage or irrigation canals and ditches are equipped with the water pump for being used for increasing hydraulic pressure to the pipeline on the inflow direction；The collecting-tank with
The rotational flow grit chamber (4) is connected by pipeline.
4. urban sewage treatment system according to claim 1, it is characterised in that：The lift pump room (2) and the rotation
Fine fack (3) is equipped with fluid passage between stream setting pot (4), the fine fack (3) includes being arranged on more in fluid passage
The parallel metal grizzly bar of group, and the metal grizzly bar is obliquely installed in fluid passage.
5. urban sewage treatment system according to claim 4, it is characterised in that：The metal grizzly bar and drainage flow side
To angle be 60~70 °.
6. urban sewage treatment system according to claim 1, it is characterised in that：The urban sewage treatment system includes
Sludge concentration tank (9) (10) between sludge dewatering；Between the bottom of the just heavy oil separator (5) and the sludge concentration tank (9)
Connected by pipeline；The sludge concentration tank (9) is connected with (10) between the sludge dewatering by pipeline, sludge concentration tank (9)
Middle sludge is dehydrated by pipeline into (10) between the sludge dewatering are middle.
7. urban sewage treatment system according to claim 6, it is characterised in that：The sludge concentration tank (9) and described
The upstream fluid passageway of (10) respectively with the coarse rack (1) is connected by pipeline between sludge dewatering, the sludge concentration tank (9)
The upstream flow that the filtrate produced between the supernatant of middle generation and the sludge dewatering in (10) passes through pipeline to coarse rack (1)
In body passage.
8. urban sewage treatment system according to claim 1, it is characterised in that：The bottom of secondary sedimentation tank (7) passes through
Pipeline is connected with secondary sludge pond (11), and the excess sludge in the secondary sedimentation tank (7) enters secondary sludge pond by pipeline
(11) in.
9. urban sewage treatment system according to claim 8, it is characterised in that：The secondary sedimentation tank (7) with it is described
Oxidation ditch is connected between (6) by pipeline；The activated sludge of part is back to oxidation by pipeline in the secondary sedimentation tank (7)
Recycled in ditch (6).
10. urban sewage treatment system according to claim 8, it is characterised in that：The secondary sludge pond (11) and institute
State and connected by pipeline between sludge concentration tank (9), the sludge in the secondary sludge pond (11) enters the dirt by pipeline
In mud thickener (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721178169.1U CN207276420U (en) | 2017-09-13 | 2017-09-13 | A kind of urban sewage treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721178169.1U CN207276420U (en) | 2017-09-13 | 2017-09-13 | A kind of urban sewage treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207276420U true CN207276420U (en) | 2018-04-27 |
Family
ID=61991145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721178169.1U Expired - Fee Related CN207276420U (en) | 2017-09-13 | 2017-09-13 | A kind of urban sewage treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207276420U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109293061A (en) * | 2018-10-30 | 2019-02-01 | 浙江中南建设集团有限公司 | A kind of Discussion about Unconventional Water Resources reuse method for construction site |
| CN109437495A (en) * | 2018-12-27 | 2019-03-08 | 广东海源环保科技有限公司 | A kind of non-halt production municipal wastewater processing line and non-halt production renovation technique |
-
2017
- 2017-09-13 CN CN201721178169.1U patent/CN207276420U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109293061A (en) * | 2018-10-30 | 2019-02-01 | 浙江中南建设集团有限公司 | A kind of Discussion about Unconventional Water Resources reuse method for construction site |
| CN109437495A (en) * | 2018-12-27 | 2019-03-08 | 广东海源环保科技有限公司 | A kind of non-halt production municipal wastewater processing line and non-halt production renovation technique |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 830013 Comprehensive Office Building No. 739 Huanyuan Road, Urumqi High-tech Development Zone, Urumqi City, Xinjiang Uygur Autonomous Region Patentee after: SUNRISE ENVIRONMENTAL PROTECTION GROUP Co.,Ltd. Address before: 830013 Comprehensive Office Building No. 739 Huanyuan Road, Urumqi High-tech Development Zone, Urumqi City, Xinjiang Uygur Autonomous Region Patentee before: XINJIANG RISINGSUN ENVIRONMENTAL PROTECTION Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180427 Termination date: 20210913 |