CN206736049U - Three-level septic tank - Google Patents

Three-level septic tank Download PDF

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Publication number
CN206736049U
CN206736049U CN201720441785.5U CN201720441785U CN206736049U CN 206736049 U CN206736049 U CN 206736049U CN 201720441785 U CN201720441785 U CN 201720441785U CN 206736049 U CN206736049 U CN 206736049U
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China
Prior art keywords
septic tank
pipe
manure
level
septic
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CN201720441785.5U
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Inventor
王雪峰
李亚楠
胡康利
王楚濛
唐尚柱
李士波
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Hebei University of Architecture
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Hebei University of Architecture
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Abstract

The utility model discloses a kind of three-level septic tank, belong to Sewage Treatment Facilities field, including the first septic tank sequentially connected, second septic tank and the 3rd septic tank, the cover plate that can be opened in order to observe and clear up is equipped with three septic tanks, it is provided with the side wall of first septic tank and enters soil pipe with what first septic tank connected, the first manure through pipe is provided with pool wall between first septic tank and second septic tank, the second manure through pipe is provided with pool wall between second septic tank and the 3rd septic tank, the outlet pipe connected with the 3rd septic tank is provided with the lateral wall of the 3rd septic tank, and the filter material layer that upper plane is less than the outlet pipe is provided with the 3rd septic tank.Its is simple in construction, small volume, and effluent quality is good, and stability is high, can denitrogenation dephosphorizing, can solve the problem that the deficiencies in the prior art.

Description

Three-level septic tank
Technical field
The utility model belongs to Sewage Treatment Facilities field, more particularly to one kind handles excrement and filtered precipitation Three-level septic tank.
Background technology
Unimpeded, reduction municipal Large Diameter Pipeline pipe of the septic tank as a kind of sewage Local treatment structures to protection city planting ductwork Play the role of the curing cycle in road, increase service life it is irreplaceable, so still using so far.The change of many districts and cities of China Manure pit is as one of basic measures of environmental protection.
The physics such as traditional septic tank is by retaining, precipitating, anaerobic digestion and biochemical process, which reach, removes pathogen and degraded The purpose of partial organic substances.In general, in septic tank after 12~24 h precipitation, original quality concentration is sewage 100~350mg/L SS about 60%~70% can be deposited.Initial organic matter mass concentration is 100~400mg/L BOD5About may be used Remove 20%~30%;But the removal to N, P is then insignificant.It is increasing at present to control body eutrophication problem The requirement of the existing dephosphorization denitrogenation in municipal sewage plant.Biological phosphate-eliminating denitrogenation needs have enough carbon sources smoothly real in sewage Existing, through nitrification and denitrification approach denitrogenation, and septic tank may cause to take off in sewage treatment plant after degrading to partial organic substances The phenomenon of carbon source deficiency during nitrogen dephosphorization be present, therefore, septic tank be set again in the case of centralized municipal sewage plant is built, Side effect is played on the contrary for denitrogenation dephosphorizing.The treatment effect of existing many sewage plants is bad, one of major reason be into Carbon source deficiency in water, and carbon is the nutrient that microorganism growth needs.In denitrification dephosphorization technique, dephosphorization and denitrification it Between there is also the competitive contradiction that triggers because of carbon source deficiency so that denitrogenation and dephosphorization cannot concurrently reach ideal effect.It is comprehensive Factors above is closed, the optimization about the design of traditional septic tank turns into focus.
Because the drainage system of the current most cities in China is mostly combined system, few sewage treatment plants, therefore, China Each city dweller building is designed with corresponding septic tank.With developing rapidly for modern social economy, water pollution day is increasingly Weight, for the fecal sewage in sanitary sewage, contains higher COD, N, P amount and pathogen in fecal sewage, by changing After manure pit processing, N, P amount are still higher.Therefore, reform the handling process of septic tank, improve that effluent quality one is urgently to be resolved hurrily to ask Topic.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of three-level septic tank, simple in construction, small volume, Effluent quality is good, and stability is high, can denitrogenation dephosphorizing, can solve the problem that the deficiencies in the prior art.
In order to solve the above technical problems, technical solution adopted in the utility model is:A kind of three-level septic tank, including it is suitable The first septic tank, the second septic tank and the 3rd septic tank of secondary connection, be equipped with three septic tanks can open in order to Observation and the cover plate of cleaning, it is provided with the side wall of first septic tank and enters soil pipe with what first septic tank connected, Pool wall between first septic tank and second septic tank is provided with the first manure through pipe, in second septic tank and institute The pool wall stated between the 3rd septic tank is provided with the second manure through pipe, is provided with the lateral wall of the 3rd septic tank and described the The outlet pipe of three septic tanks connection, and the filter material layer that upper plane is less than the outlet pipe is provided with the 3rd septic tank.
Further, the breather pipe connected with first septic tank is provided with the top of the pond of first septic tank.
Further, it is described enter soil pipe located at first septic tank side wall upper position.
Further, first manure through pipe is located at the pond between first septic tank and second septic tank The middle and lower part position of wall.
Further, second manure through pipe is arranged at described between second septic tank and the 3rd septic tank The upper position of pool wall and the lower section for being located at the filter material layer.
Further, the pond height of first septic tank, second septic tank and the 3rd septic tank is equal, and respectively The structure of septic tank is cylinder or cuboid, and arrogant to the small order of its volume is the 3rd septic tank, described first Septic tank, second septic tank.
Further, the bottom of pond of each septic tank is followed successively by rammed earth from bottom to top, plain concrete cushion layer, reinforcing bar mix Coagulate native bottom plate and sand finish.
It is using beneficial effect caused by above-mentioned technical proposal:Three-level septic tank provided by the utility model is by three The septic tank composition being connected, mainly crosses excrement and parasitic ovum proportion using anaerobic fermentation, middle level and is more than and generally mix with liquor ratio Principle that is heavy and being easy to precipitation, excrement decomposed in pond by the fermentation of more than 30 days, and middle level liquid manure is successively by the first septic tank The second septic tank is flow to, to reach precipitation or kill the purpose of parasitic ovum and pathogenic entero becteria in excrement, the 3rd septic tank excrement Liquid reduces N, P content by filter material layer, and the liquid manure after processing is discharged by outlet pipe.It is simple in construction, small volume, water outlet water Matter is good, and stability is high, especially suitable for small-sized Sewage Treatment Facilities.
Brief description of the drawings
Fig. 1 is the overlooking the structure diagram for the three-level septic tank that the utility model embodiment provides;
Fig. 2 is the sectional view of A-A in Fig. 1;
Fig. 3 is the sectional view of B-B in Fig. 1;
In figure:1st, soil pipe is entered;2nd, the first manure through pipe;3rd, the second manure through pipe;4th, outlet pipe;5th, the first septic tank;6th, second Septic tank;7th, the 3rd septic tank;8th, breather pipe;9th, filter material layer;10th, cover plate.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining The utility model, it is not used to limit the utility model.
It should be noted that in the utility model description, it is to be understood that if having the orientation or position relationship of instruction To be based on orientation shown in the drawings or position relationship, be for only for ease of description the present invention and simplify description, rather than instruction or Imply that signified device or element there must be specific orientation, that is, the term of position relationship is only used for showing described in accompanying drawing Example property explanation, it is impossible to the limitation to this patent is interpreted as, for those of ordinary skills, can be as the case may be Understand the concrete meaning of above-mentioned term.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or Implicitly include one or more this feature.
Referring to Fig. 1-Fig. 3, the three-level septic tank now provided the utility model embodiment elaborates.The utility model The three-level septic tank of offer, including the first septic tank 5, the second septic tank 6 and the 3rd septic tank 7 sequentially connected, in three changes The cover plate 10 that can be opened in order to observe and clear up is equipped with manure pit, in the side wall of first septic tank 5 be provided with What first septic tank 5 connected enters soil pipe 1, is set on the pool wall between first septic tank 5 and second septic tank 6 There is the first manure through pipe 2, the second manure through pipe 3 be provided with the pool wall between second septic tank 6 and the 3rd septic tank 7, The outlet pipe 4 connected with the 3rd septic tank 7 is provided with the lateral wall of the 3rd septic tank 7, and is changed the described 3rd It is less than the filter material layer 9 of the outlet pipe 4 in manure pit 7 provided with upper plane.
Compared with prior art, the utility model embodiment provide three-level septic tank, can denitrogenation dephosphorizing, mainly include into Soil pipe 1, manure through pipe, three-level septic tank, cover plate 10, breather pipe 8 and the part of filter material layer 9 six composition.Fresh excreta is by entering excrement Pipe 1 enters the first septic tank 5 by entering excrement mouth, and excrement starts fermentation decomposition, because proportion difference liquid manure can be divided into three layers naturally in pond, Upper strata is pasty state excrement skin, and lower floor is the liquid manure for comparing clarification for block or a shape excrement slag, middle level.Excrement skin and lower floor's excrement slag on upper strata In containing bacterium and parasitic ovum it is most, middle level containing worm's ovum it is minimum, the middle level liquid manure of initial fermentation passes through manure through pipe overflow to second Septic tank 6, and major part is continued to ferment without the excrement skin fully to ferment and the detention of excrement slag in the first septic tank 5.Flow into the The liquid manure of two septic tanks 6 further ferments decomposition, and worm's ovum continues to sink, and pathogen is gradually dead, and liquid manure obtains further harmless Change, caused the first septic tank of excrement slag ratio 5 substantially reduces.The liquid manure that further fermentation is decomposed is changed by sewage double-edged fine-toothed comb filtering second The scum silica frost of manure pit 6 obtains the relative liquid manure clarified, then passes through manure through pipe overflow to the 3rd septic tank 7.Flow into the 3rd septic tank 7 Liquid manure is general decomposed, and wherein germ and parasitic ovum are killed substantially, but N, P amount are higher.The liquid manure of 3rd septic tank 7 leads to The filtering bed of material 9 is discharged into subsoil drain net after removing N, P.Three-level septic tank provided by the utility model, it is simple in construction, volume compared with It is small, it is convenient to clean, effluent quality is high, and stability is high, practical.
Wherein, in order to improve removal of the septic tank to N, P, the excrement in the 3rd septic tank 7 one filter material layer 9 of installation, pond 7 Liquid is discharged after the filtering of filter material layer 9.The filter material layer 9 mainly takes the mode of absorption to remove N, P, and filter material layer uses vermiculite, leech Masonry is that adsorbing medium has that light weight, surface area are big, adsorption capacity is big, yield is big(Originate from Xinjiang, Hebei, Shanxi, Inner Mongol) The advantages of not producing infringement to surrounding environment and being easy to regeneration, vermiculite is very fast to water body N, P rate of adsorption, through testing 2h interior energies Reach poised state, therefore removal of the septic tank to N, P can be improved.
It is provided by the utility model can denitrogenation dephosphorizing three-level septic tank, lived indispensable supporting life as people Facility, its main function are to remove pollutant that is precipitable in sanitary sewage and suspending, store and anaerobic digestion sinks to bottom of pond dirt Mud.
Further, referring to Fig. 1 to Fig. 3, the specific implementation of the three-level septic tank provided as the utility model embodiment Mode, the breather pipe 8 connected with first septic tank 5 is provided with the top of the pond of first septic tank 5, can be in time in pond The gases such as caused biogas, methane are drawn, while heat caused by fermentation can also be dispersed.
Further, referring to Fig. 1 to Fig. 3, the specific implementation of the three-level septic tank provided as the utility model embodiment Mode, it is described enter soil pipe 1 located at first septic tank 5 side wall upper position.
Further, referring to Fig. 1 to Fig. 3, the specific implementation of the three-level septic tank provided as the utility model embodiment Mode, under first manure through pipe 2 is in the pool wall between first septic tank 5 and second septic tank 6 Position.It is easy to the middle level liquid manure of initial fermentation by manure through pipe overflow to the second septic tank 6, and will be largely without fully hair The excrement skin of ferment and the detention of excrement slag continue to ferment in the first septic tank 5.
Further, referring to Fig. 1 to Fig. 3, the specific implementation of the three-level septic tank provided as the utility model embodiment Mode, on second manure through pipe 3 is arranged in the pool wall between second septic tank 6 and the 3rd septic tank Position and the lower section for being located at the filter material layer.It is easy to the upper strata liquid manure in the second septic tank 6 through the overflow of the second manure through pipe 3 to the 3rd In septic tank 7.
Further, referring to Fig. 1 to Fig. 3, the specific implementation of the three-level septic tank provided as the utility model embodiment Mode, the pond height of first septic tank 5, second septic tank and the 3rd septic tank is equal, and the knot of each septic tank Structure is cylinder or cuboid, and arrogant to the small order of its volume is the 3rd septic tank, first septic tank 5, institute State the second septic tank.
Further, referring to Fig. 1 to Fig. 3, the specific implementation of the three-level septic tank provided as the utility model embodiment Mode, the bottom of pond of each septic tank are followed successively by rammed earth, plain concrete cushion layer, reinforced concrete floor and sand from bottom to top Slurry is wiped one's face.
Concrete operation step using three-level septic tank provided by the utility model is as follows:
Step 1, fresh excreta enters the first septic tank 5 by entering soil pipe 1, and excrement starts fermentation decomposition in pond, because of proportion not Three layers can be divided into naturally with liquid manure, upper strata is pasty state excrement skin, and lower floor is the excrement for comparing clarification for block or a shape excrement slag, middle level Liquid.It is most containing bacterium and parasitic ovum in excrement skin and lower floor's excrement slag at the middle and upper levels, and middle level is minimum containing worm's ovum, the middle level of initial fermentation Liquid manure through the overflow of the first manure through pipe 2 to the second septic tank 6, and by major part without the excrement skin fully to ferment and the detention of excrement slag Continue to ferment in one septic tank 5, caused greenhouse gases can be discharged to outdoor by breather pipe 8.
Step 2, the liquid manure for flowing into the second septic tank 6 further ferments decomposition, and worm's ovum continues to sink, and pathogen is gradually dead Die, liquid manure obtain further it is innoxious, the first septic tank of caused excrement skin and excrement slag thickness ratio 5 substantially reduces.Second septic tank 6 In upper strata liquid manure through the overflow of the second manure through pipe 3 to the 3rd septic tank 7.
Step 3, the liquid manure of the 3rd septic tank 7 of inflow is general decomposed, and wherein germ and parasitic ovum are killed substantially, Second manure through pipe 3 is less than outlet pipe 4, and liquid manure flows into the 3rd septic tank 7 from the second manure through pipe 3, and liquid manure is sufficiently mixed with filter material layer 9 Afterwards, gone out from the overflow of outlet pipe 4, so as to reach the effect for removing N, P.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model Protection domain within.

Claims (7)

1. three-level septic tank, it is characterised in that including the first septic tank, the second septic tank and the 3rd septic tank sequentially connected, The cover plate that can be opened in order to observe and clear up is equipped with three septic tanks, is set in the side wall of first septic tank Have and enter soil pipe with what first septic tank connected, set on the pool wall between first septic tank and second septic tank There is the first manure through pipe, the second manure through pipe is provided with the pool wall between second septic tank and the 3rd septic tank, in institute The lateral wall for stating the 3rd septic tank is provided with the outlet pipe connected with the 3rd septic tank, and is set in the 3rd septic tank There is the filter material layer that upper plane is less than the outlet pipe.
2. three-level septic tank according to claim 1, it is characterised in that at the top of the pond of first septic tank be provided with The breather pipe of the first septic tank connection.
3. three-level septic tank according to claim 1, it is characterised in that it is described enter soil pipe located at first septic tank The upper position of side wall.
4. three-level septic tank according to claim 1, it is characterised in that first manure through pipe changes excrement located at described first The middle and lower part position of the pool wall between pond and second septic tank.
5. three-level septic tank according to claim 1, it is characterised in that second manure through pipe is arranged at described second and changed The upper position of the pool wall between manure pit and the 3rd septic tank and the lower section for being located at the filter material layer.
6. three-level septic tank according to claim 1, it is characterised in that first septic tank, second septic tank It is equal with the pond height of the 3rd septic tank, and the structure of each septic tank is cylinder or cuboid, its volume is arrogant to small Order for the 3rd septic tank, first septic tank, second septic tank.
7. three-level septic tank according to claim 1, it is characterised in that the bottom of pond of each septic tank is from bottom to top successively For rammed earth, plain concrete cushion layer, reinforced concrete floor and sand finish.
CN201720441785.5U 2017-04-25 2017-04-25 Three-level septic tank Active CN206736049U (en)

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Application Number Priority Date Filing Date Title
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108612343A (en) * 2018-04-04 2018-10-02 朱德仲 A kind of high-level cleaner of public lavatory
CN109694162A (en) * 2019-02-15 2019-04-30 周鼎力 A kind of remodeling septic tank of rural toilet liquid dung and sanitary wastewater processing up to standard
CN110183082A (en) * 2019-06-20 2019-08-30 湖北新华塑料有限公司 The pulp water separating mechanism of three compartment septic tanks
CN110342768A (en) * 2019-07-24 2019-10-18 周鼎力 A kind of Environmental-protection septic tank
CN112479520A (en) * 2019-09-12 2021-03-12 周鼎力 Environment-friendly septic tank
CN115490398A (en) * 2022-09-29 2022-12-20 李洪智 Sewage treatment system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108612343A (en) * 2018-04-04 2018-10-02 朱德仲 A kind of high-level cleaner of public lavatory
CN109694162A (en) * 2019-02-15 2019-04-30 周鼎力 A kind of remodeling septic tank of rural toilet liquid dung and sanitary wastewater processing up to standard
CN110183082A (en) * 2019-06-20 2019-08-30 湖北新华塑料有限公司 The pulp water separating mechanism of three compartment septic tanks
CN110342768A (en) * 2019-07-24 2019-10-18 周鼎力 A kind of Environmental-protection septic tank
CN112479520A (en) * 2019-09-12 2021-03-12 周鼎力 Environment-friendly septic tank
CN115490398A (en) * 2022-09-29 2022-12-20 李洪智 Sewage treatment system

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