CN208265969U - rural sewage treatment system - Google Patents
rural sewage treatment system Download PDFInfo
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- CN208265969U CN208265969U CN201820432057.2U CN201820432057U CN208265969U CN 208265969 U CN208265969 U CN 208265969U CN 201820432057 U CN201820432057 U CN 201820432057U CN 208265969 U CN208265969 U CN 208265969U
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- treatment system
- sewage treatment
- rural sewage
- sewage
- rural
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Abstract
The utility model provides a kind of rural sewage treatment system.The rural sewage treatment system includes the septic tank for passing sequentially through pipeline connection, conditioning tank, anaerobic biological pond, anoxic biochemistry pool, contact-oxidation pool, sedimentation basin, artificial swamp, the sedimentation basin is equipped with sludge return pipe, the sludge return pipe is equipped with sludge reflux pump, and is connected to the anaerobic biological pond;The contact-oxidation pool is equipped with sewage backflow pipeline, and the sewage backflow pipeline is pumped equipped with sewage backflow, and is connected to the anoxic biochemistry pool.The rural domestic sewage treatment mode that the rural sewage treatment system provided by the utility model solves the prior art, which exists, to be had a single function or low efficiency, takes up a large area or the technical issues of operating cost height etc..
Description
Technical field
The utility model relates to sewage treatment fields, and in particular to a kind of rural sewage treatment system.
Background technique
Domestic sewage in rural areas is generally by sanitary wastewater, wash water, kitchen waste water, bath sewage and raise poultry domestic animal
The sewage of generation forms, and COD, N, P content are higher.
The rural sewage treatment mode of the prior art mainly have independent aerobic biological film method, anaerobic organism embrane method, ecology at
Reason technology, materializing strategy technology etc., but all have some limitations:
Aerobic, anaerobic organism embrane method has a single function the removal of N, P element, is unable to satisfy the agriculture that eutrophication is generally presented
Village's water environment treatment needs;Eco-treatment technology, although having the function of synchronous denitrification dephosphorizing, treatment effeciency is low, occupied area
Greatly;Materializing strategy technology is extremely limited to the processing capacity of nitrogen, and operating cost is high.
Summary of the invention
Exist to solve the rural domestic sewage treatment mode of the prior art and have a single function or low efficiency, take up a large area,
Or the technical issues of operating cost height etc., the utility model provide a kind of rural sewage treatment system to solve the above problems.
A kind of rural sewage treatment system, including pass sequentially through pipeline connection septic tank, conditioning tank, anaerobic biological pond,
Anoxic biochemistry pool, contact-oxidation pool, sedimentation basin, artificial swamp, the sedimentation basin are equipped with sludge return pipe, the sludge reflux
Pipeline is equipped with sludge reflux pump, and is connected to the anaerobic biological pond;The contact-oxidation pool is equipped with sewage backflow pipeline, described
Sewage backflow pipeline is pumped equipped with sewage backflow, and is connected to the anoxic biochemistry pool.
In a kind of preferred embodiment of rural sewage treatment system provided by the utility model, the height of the septic tank
It is equipped with elevator pump lower than the height of the conditioning tank, and in pipeline connecting the two, the conditioning tank is high to the artificial swamp
Degree gradually reduces.
In a kind of preferred embodiment of rural sewage treatment system provided by the utility model, the rural sewage treatment
System further includes oil separator, and the oil separator, the septic tank, the conditioning tank pass sequentially through pipeline connection.
In a kind of preferred embodiment of rural sewage treatment system provided by the utility model, in the contact-oxidation pool
Equipped with aerator.
In a kind of preferred embodiment of rural sewage treatment system provided by the utility model, the rural sewage treatment
System further includes PLC control system;
The PLC control system includes multiple time switch, respectively with the aerator, the elevator pump, the dirt
Water reflux pump, the sludge reflux pump pass through circuit connection.
In a kind of preferred embodiment of rural sewage treatment system provided by the utility model, the anaerobic biological pond,
Biofilm packing is equipped in the anoxic biochemistry pool, the contact-oxidation pool.
In a kind of preferred embodiment of rural sewage treatment system provided by the utility model, the biofilm packing is adopted
Use soft cellulose filler.
Compared to the prior art, the rural sewage treatment system provided by the utility model fully utilizes anaerobism, lacks
Oxygen, Aerobic Process for Treatment and Ecological Disposal, the perfect processing system of materializing strategy, the macromolecular sufficiently removed in sewage are organic
The pollutants such as object, N, P, COD.
To treated, sewage is used the rural sewage treatment system provided by the utility model, reduces water money
The waste in source, while the sludge that treatment process generates can be used as fertilizer, produce new economic benefit, the cost of system operation
Low, high efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of rural sewage treatment system provided by the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than whole
Embodiment.
Referring to Fig. 1, being the structural schematic diagram of rural sewage treatment system 1 provided by the utility model.
The rural sewage treatment system 1 includes the oil separator 2 for passing sequentially through pipeline connection, septic tank 3, conditioning tank 4, detests
Oxygen biochemistry pool 5, anoxic biochemistry pool 6, contact-oxidation pool 7, sedimentation basin 8, artificial swamp 9.
The oil separator 2, the height of the conditioning tank 4 are above the septic tank 3, and the conditioning tank 4 is to described artificial
The height of wetland 9 gradually reduces.
Sewage is flow in the septic tank 3 by gravity by the oil separator 2, and sewage is by elevator pump 31 by describedization excrement
Pond 3 is promoted in the conditioning tank 4, and sewage has the conditioning tank 4 successively to flow in the artificial swamp 9 by gravity.
The contact-oxidation pool 7 is equipped with sewage backflow pump 71, and part sewage lifting in pond is returned the anoxic biochemistry pool 6.
Aerator 72 is additionally provided in the contact-oxidation pool 7.The sedimentation basin 8 is equipped with sludge reflux pump 81, and partial sludge is promoted
Go back to the anaerobic biological pond 5.
The rural sewage treatment system 1 further includes PLC control system 10, if there are four contact-making switch, respectively with it is described
Elevator pump 31, sewage backflow pump 71, the aerator 72, the sludge reflux pump 81 pass through circuit connection.
The anaerobic biological pond 5, the anoxic biochemistry pool 6 are equipped with biofilm packing in the contact-oxidation pool 7, and
Using soft cellulose filler.
Treatment method for rural sewage based on the rural sewage treatment system 1, comprising the following steps:
S01: normally comprising food waste waste water in sewage, oil content is higher.Sewage is passed first into the oil separator 2, into
Row oil removal removes Slag treatment.
The oil separator 2 also adds demulsifier into sewage, and continues to be aerated, and agglomerates the oil emulsion in sewage for oil
Drop removes together during oil removal removes Slag treatment.
S02: opening the water outlet of the oil separator 2, and treated that sewage is discharged under Gravitative Loads is described for oil removal slagging-off
In septic tank 3.
The septic tank 3 uses three compartment septic tanks.Because specific gravity different sewage is divided into three layers naturally, upper layer is lighter floats
Foam, lower layer are deposited as organic sludge, and middle layer is opposite settled sewage.Middle layer sewage is flow in next lattice, is repeated the above,
The residue left then continues anaerobic fermentation.It is more settled sewage into third lattice.
The organic sludge of periodic cleaning deposition, is used as organic fertilizer.
S03: by the sewage in the 3 third lattice of septic tank, being promoted to the conditioning tank 4 by the elevator pump 31,
It is kept in the conditioning tank 4.
Under the buffering of the conditioning tank 4, the sewage water quantity holding for being emitted into subsequent processing is stablized;Different time sections, no
It is mixed between the sewage of same type, sewage quality is made also to keep relatively stable, balanced state.
Meanwhile the sewage kept in the conditioning tank 4 also produces preliminary hydrolysis acidification.
S04: under the buffering of the conditioning tank 4, sewage is emitted into the anaerobic biological pond 5 with constant rate.Institute
The sludge in sedimentation basin 8 is stated also to be back in the anaerobic biological pond 5.Control is back to the sludge quantity in the anaerobic biological pond 5,
It avoids introducing excessive nitrate nitrogen and enters and release phosphorus bacterium competition carbon source.
The anaerobic biological pond 5 is not aerated, and the dissolved oxygen in microbial consumption sewage, dissolved oxygen content is reduced to
0.2mg/L is hereinafter, form anaerobic environment.
It under the action of anaerobe, hydrolyzes, be acidified in sewage, producing acetic acid, methane phase carries out simultaneously.It is suitably adjusted in processing
PH is saved, sewage is made to keep neutral.
Through most COD removal in treated in the anaerobic biological pond 5 sewage, larger molecular organics also resolve into small point
Sub- organic matter.
S05: the sewage discharge after Anaerobic Treatment is into the anoxic biochemistry pool 6.Sewage in the contact-oxidation pool 7
After being mixed with the sewage from the anaerobic biological pond 5, it is back in the anoxic biochemistry pool 6.
Sewage in the contact-oxidation pool 7 contains higher dissolved oxygen content, and it is raw that control is back to the anoxic
The sewage quantity for changing pond 6, makes dissolved oxygen content in the anoxic biochemistry pool 6 form stable anaerobic environment in 0.5mg/L or so.
Denitrifying bacterium is made carbon source using organic matter abundant in the sewage newly entered in the anoxic biochemistry pool 6 and is carried out instead
Nitration reaction, by backflow mixed liquor a large amount of nitrate nitrogens (NO3-N) and nitrite nitrogen (NO2-N) be reduced to N2 discharge to
Air realizes the denitrogenation of sewage.Part BOD is removed simultaneously.
S06: the sewage discharge after anoxic treatment is into the contact-oxidation pool 7.Pass through institute in the contact-oxidation pool 7
It states aerator 72 to be persistently aerated, makes dissolved oxygen content in 2mg/L or more, form stable aerobic environment.
Under aerobic environment, organic matter is by the further biochemical degradation of aerobic microbiological;PolyP bacteria absorbs the phosphorus in sewage, turns
It is melted into insoluble poly orthophosphates to store in vivo, excess sludge is discharged by sedimentation basin and achievees the purpose that system dephosphorization.
Ammonia nitrogen (NH3-N) is nitrified, concentration decline, the concentration increasing of nitrate nitrogen (NO3-N), nitrite nitrogen (NO2-N)
Add.
Sewage in the contact-oxidation pool 7 is promoted back in the anoxic biochemistry pool 6 by sewage backflow pump 71, is made
The wherein content rising of dissolved oxygen, nitrate nitrogen (NO3-N), nitrite nitrogen (NO2-N).Stable anaerobic environment is formed to carry out
Anti-nitration reaction.
S07: the sewage discharge after Aerobic Process for Treatment is into the sedimentation basin 8, and the suspended matter of each step accumulation is in institute before
State sedimentation separation in sedimentation basin 8.
Suspended substance sedimentation forms sludge blanket in bottom of pond, promotes go back to the anaerobic biological pond 5 by the sludge reflux pump 81
In, repeat anaerobism, anoxic, aerobic processing.
The sludge blanket of periodic cleaning deposition, is used as fertilizer after spontaneous fermentation.
S08: after precipitation process, most pollutant is processed in sewage, and clear water is passed through in the artificial swamp,
Carry out advanced nitrogen dephosphorization.And digging has wet well, convenient for water intaking.
Compared to the prior art, the rural sewage treatment system 1 provided by the utility model fully utilizes anaerobism, lacks
Oxygen, Aerobic Process for Treatment and Ecological Disposal, the perfect processing system of materializing strategy, the macromolecular sufficiently removed in sewage are organic
The pollutants such as object, N, P, COD.
To treated, sewage is used the rural sewage treatment system 1 provided by the utility model, reduces water
The waste of resource, while the sludge that treatment process generates can be used as fertilizer, produce new economic benefit, system operation at
This low, high efficiency.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Using equivalent structure or equivalent flow shift made by the utility model description, it is applied directly or indirectly in other phases
The technical field of pass similarly includes within the scope of patent protection of the utility model.
Claims (7)
1. a kind of rural sewage treatment system, it is characterised in that: including passing sequentially through the septic tank of pipeline connection, conditioning tank, detesting
Oxygen biochemistry pool, anoxic biochemistry pool, contact-oxidation pool, sedimentation basin, artificial swamp, the sedimentation basin are equipped with sludge return pipe, institute
Sludge return pipe is stated equipped with sludge reflux pump, and is connected to the anaerobic biological pond;The contact-oxidation pool is returned equipped with sewage
Flow tube road, the sewage backflow pipeline is pumped equipped with sewage backflow, and is connected to the anoxic biochemistry pool.
2. rural sewage treatment system according to claim 1, it is characterised in that: the height of the septic tank is lower than described
The height of conditioning tank, and it is equipped with elevator pump in pipeline connecting the two, the conditioning tank to the artificial swamp height gradually drops
It is low.
3. rural sewage treatment system according to claim 2, it is characterised in that: the rural sewage treatment system also wraps
Oil separator is included, the oil separator, the septic tank, the conditioning tank pass sequentially through pipeline connection.
4. rural sewage treatment system according to claim 3, it is characterised in that: be equipped with aeration in the contact-oxidation pool
Equipment.
5. rural sewage treatment system according to claim 4, it is characterised in that: the rural sewage treatment system also wraps
Include PLC control system;
The PLC control system includes multiple time switch, is returned respectively with the aerator, the elevator pump, the sewage
Stream pump, the sludge reflux pump pass through circuit connection.
6. rural sewage treatment system according to claim 1, it is characterised in that: the anaerobic biological pond, the anoxic
Biofilm packing is equipped in biochemistry pool, the contact-oxidation pool.
7. rural sewage treatment system according to claim 6, it is characterised in that: the biofilm packing uses soft fibre
Tie up filler.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201820432057.2U CN208265969U (en) | 2018-03-29 | 2018-03-29 | rural sewage treatment system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201820432057.2U CN208265969U (en) | 2018-03-29 | 2018-03-29 | rural sewage treatment system |
Publications (1)
Publication Number | Publication Date |
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CN208265969U true CN208265969U (en) | 2018-12-21 |
Family
ID=64676219
Family Applications (1)
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CN201820432057.2U Expired - Fee Related CN208265969U (en) | 2018-03-29 | 2018-03-29 | rural sewage treatment system |
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CN (1) | CN208265969U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108503134A (en) * | 2018-03-29 | 2018-09-07 | 湖南前元智慧管业股份有限公司 | Rural sewage treatment system and processing method |
CN112694227A (en) * | 2021-02-05 | 2021-04-23 | 杭州驰丰机械有限公司 | Rural domestic sewage treatment system and control method thereof |
-
2018
- 2018-03-29 CN CN201820432057.2U patent/CN208265969U/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108503134A (en) * | 2018-03-29 | 2018-09-07 | 湖南前元智慧管业股份有限公司 | Rural sewage treatment system and processing method |
CN112694227A (en) * | 2021-02-05 | 2021-04-23 | 杭州驰丰机械有限公司 | Rural domestic sewage treatment system and control method thereof |
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
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: 20181221 Termination date: 20210329 |