CN103864276A - Large three-lattice integrated geographical septic tank - Google Patents
Large three-lattice integrated geographical septic tank Download PDFInfo
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- CN103864276A CN103864276A CN201410141960.XA CN201410141960A CN103864276A CN 103864276 A CN103864276 A CN 103864276A CN 201410141960 A CN201410141960 A CN 201410141960A CN 103864276 A CN103864276 A CN 103864276A
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Classifications
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- Y02W10/12—
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a large three-lattice integrated geographical septic tank and a making method thereof. The large three-lattice integrated geographical septic tank comprises a tank body, a feces inlet pipe, a feces outlet pipe and a check hole, wherein the tank body comprises an upper half tank body and a lower half tank body which are abutted together, and a sealing rubber mat is arranged at a combined part of the upper half tank body and the lower half tank body; the tank body is internally provided with a two-lattice support shaped like a Chinese character 'Jing' and a partition plate, wherein the support shaped like the Chinese character 'Jing' and the partition plate are used for sequentially dividing the inside of the tank body into three cabins which are respectively a first-stage anaerobic chamber, a second-stage anaerobic chamber and a clarifying chamber; the bottom of the first-stage anaerobic chamber is communicated with the bottom of the second-stage anaerobic chamber; the partition plate is provided with holes which are vertically staggered. The large three-lattice integrated geographical septic tank can be used for remarkably improving the compressive strength and has the characteristics of acid and alkaline resistance, corrosion resistance, long service life, no gaps, good integrality, no leakage, no pollution to underground water, no environment pollution, benefit for ecological environment and the like. By using the large three-lattice integrated geographical septic tank, the processes for treating sludge, digestion gas and wastewater at the water outlet end of the septic tank can be separated, so that the interference of an air floating phenomenon to wastewater treatment is avoided.
Description
Technical field
The invention belongs to sewage disposal device field, relate to a kind of septic tank, particularly relate to the geographical formula globality of a kind of large three lattice septic tank.
Background technology
Existing more than the 100 year history of application of tradition septic tank, at first as a kind of avoid line clogging and arrange cut excrement facility, in damming and precipitating sewage macrobead foreign material, prevent from playing active effect in line clogging, protection of the environment.Its know-why is the pattern that sewage contacts with mud, the sludge digestion degraded of deposition produces the digestion gas such as biogas, carbonic acid gas, hydrogen sulfide, because the Float upward function of digestion gas is to sludge creation disturbance, digestion gas can allow mud more abundant with mixing of biological flora to the perturbation action of mud, contributes to digestion degraded.But bottom mud rises with digestion gas, after bubble is overflowed, mud precipitates downwards again, and the mud of these risings and precipitation pollutes sewage again.Contact with mud at cesspool sewage under mixing, affect precipitation and the effluent quality of septic tank, need to extend dwell time of sewage and improve sedimentation effect and effluent quality, dwell time of sewage is generally 12-24 hour.Because traditional septic tank is to build by laying bricks or stones and form with masonry, cement and mortar, there is defect in self, and more than 95% treatment tank (septic tank), using after 1-2, starts seepage, serious polluted underground water source according to incompletely statistics; Some septic tanks, because of setting of ground, easily cause buildings inclination in various degree.Because traditional septic tank is with low content of technology, corruption function is poor, manufacture craft simple, easy to leak, easily stop up, easily freezing, the cycle of drawing is clearly short, makes troubles to daily life, can not meet the requirement of the aspect such as environmental protection and building.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of high strength, floor space is little, compressive property is strong, good seal performance, antiacid alkali, corrosion-resistant, shock-resistant, ne-leakage, long service life, can make the geographical formula globality of the large three lattice septic tanks of " sewage, mud, digestion gas " three phase separation.
For addressing the above problem, the invention provides the geographical formula globality of a kind of large three lattice septic tanks, it comprises pond body, enters soil pipe, nightsoil discharging pipe and inspection port, and described pond body comprises first pond body and second pond body, first pond body and second pond body are docking together, and are provided with seal gum at combining site; Described enter soil pipe stretch in the body of pond from one end of first pond body, nightsoil discharging pipe stretches in the body of pond from the other end of first pond body, the admission port end of nightsoil discharging pipe is positioned at pond body internal upper part; Described inspection port is arranged on first pond body; It is two dividing plates that body inside, described pond arranges two lattice, and described dividing plate is divided into three storehouses by body inside, described pond successively, and described three storehouses are one-level anaerobic room, secondary anaerobic chamber and clarifying chamber; Described one-level anaerobic room and bottom, secondary anaerobic chamber communicate; On described dividing plate, arrange porosely, described hole misplaces up and down.
Because the geographical formula globality of these large three lattice septic tank has adopted said structure, mud, the digestion gas of the inner water side of described pond body are separated with sewage treatment process, avoid the interference of air supporting phenomenon to sewage disposal.Such separation has reduced the duration of contact of sewage and mud, and two processes of acid fermentation and alkaline fermentation are not interfere with each other, and has improved reaction efficiency.
As a further improvement on the present invention, described pond body contains appearance preservative coat, middle enhancement Layer and Nei Biao anti-corrosion leak-proof layer.
Improve as a more step of the present invention, show through experiment for many years, described enter the length of soil pipe can determine according to the septic tank of different size, length is preferably 30-70cm, enter the vertical range 30cm between the admission port end of soil pipe and the outer top of pond body, the vertical range of entering between the relief outlet end of soil pipe and the inner bottom part of pond body is 40cm; The length of described nightsoil discharging pipe is 60cm, and the vertical range between the relief outlet end of nightsoil discharging pipe and the outer top of pond body is 30cm.
Improve as another step of the present invention, described pond body is sphere dome-shaped or ellipsoid shape.Like this, increased pond body capacity.Owing to adopting the design of upper lower leaf, be convenient to installation, routine maintenance and the regularly desilting of pond body.
In order to solve the scum layer phenomenon that hardens in the fracture breakage of traditional septic tank pool wall or pond, thoroughly solve the problem because of leakage pollution underground water in traditional septic tank application.The present invention adopts unitary mould moulding process and unique negative camber design, and its making method comprises the steps:
A, level land, brick mould, banket;
B, do concrete mold shell;
The polishing waxing of c, mold shell, laying mould release film;
D, reinforcing mat, reinforcing bar are made;
E, reinforced concrete prefabricated (freezing period 5-7 days);
F, mechanical stripping;
G, installation Ti Neifen storehouse, pond dividing plate;
H, surface finish polishing, paving platinum cloth, sends out resin paint.
Compared with prior art, the beneficial effect that the present invention obtains is: the geographical formula globality of these large three lattice septic tank can obviously improve ultimate compression strength; Sealing property is better, scum silica frost demixing phenomenon hardens in the damaged and pond body of the fracture that can not cause because of settlement of foundation, solve the problem of brick septic tank polluted underground water, effectively ensure the function of septic tank reliability service and anaerobism excrement, thereby make it have antiacid alkali, corrosion-resistant, long service life, seamless, good integrity, non-leakage, polluted underground water not, the pollution-free features such as ecotope that are of value to.Because this septic tank inside is provided with two dividing plates, the hole on dividing plate misplaces up and down, is difficult for forming short stream, and whole pond body is divided into three parts; One-level anaerobic room, secondary anaerobic chamber and clarifying chamber, one-level anaerobic room communicates with bottom, secondary anaerobic chamber.Such separation has reduced the duration of contact of sewage and mud, and two processes of acid fermentation and alkaline fermentation are not interfere with each other, and has improved significantly reaction efficiency.
Brief description of the drawings
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail, wherein:
Fig. 1 is the geographical formula globality of large three lattice of the present invention digestion tank structure schematic diagram.
embodiment
Fig. 1 shows the geographical formula globality of a kind of large three lattice of the present invention septic tank, it comprises pond body, enters soil pipe 2, nightsoil discharging pipe 7 and inspection port, described pond body comprises first pond body 1 and second pond body 14, and first pond body 1 is docking together with second pond body 14, is provided with seal gum at combining site; Described enter soil pipe 2 stretch in the body of pond from one end of first pond body 1, nightsoil discharging pipe 7 stretches in the body of pond from the other end of first pond body 1, the admission port end of nightsoil discharging pipe 7 is positioned at pond body internal upper part; Described large three lattice are the body internal structure of described pond, it is two dividing plates that body inside, pond arranges two lattice, be preferably well word support 13 and dividing plate 10, described well word support 13 and dividing plate 10 are divided into three storehouses by body inside, described pond successively, and described three storehouses are one-level anaerobic room 15, secondary anaerobic chamber 12 and clarifying chamber 9; Described one-level anaerobic room 15 and 12 bottoms, secondary anaerobic chamber communicate; On described dividing plate 10, arrange porosely 8, described hole 8 misplaces up and down.Described first pond body 1 is provided with inspection port 3 and inspection port 6, and it is corresponding one-level anaerobic room 15 and settling pond 9 respectively, and inspection port is provided with seal cover board.Described pond body contains appearance preservative coat 5, middle enhancement Layer 4 and Nei Biao anti-corrosion leak-proof layer 11, and adopt matrix material manufacture to form, described matrix material comprises screen cloth, platinum cloth, antiseep additive, concrete (reinforcing mat and Framework Of Steel Reinforcement), chemical materials, resin or glass reinforced plastic main stor(e)y, described chemical materials comprises resin, red material, expects preferred consolidation agent in vain, antiseep additive preferably tall and erect precious, be coated with carefree, waterproofing and leakage-stopping is precious etc.Its internal diameter thickness: 6-7cm, carrying thickness 20cm.Our experiments show that its ultimate compression strength: after road surface pavement, allow 60 tons of following vehicles to pass through, life-span working life can reach 70 years.Show through experiment for many years, described enter the length of soil pipe 2 can determine according to the septic tank of different size, be preferably 30-70cm, enter the vertical range 30cm between the admission port end of soil pipe 2 and the outer top of pond body, the vertical range of entering between the relief outlet end of soil pipe 2 and the inner bottom part of pond body is 40cm; The length of described nightsoil discharging pipe 7 is 60cm, and the vertical range between the relief outlet end of nightsoil discharging pipe 7 and the outer top of pond body is 30cm.Described pond body is sphere dome-shaped or ellipsoid shape.Like this, increased pond body capacity.Owing to adopting the design of upper lower leaf, be convenient to installation, routine maintenance and the regularly desilting of pond body.
Described first pond body 1 is docking together with second pond body 14, is preferably provided with high-efficiency cement chemical material and seal gum at its combining site; Described high-efficiency cement chemical material refers in order to prevent concrete setting shrinkage strain, and that its main shrinkage strain has is condensing, plastic shrinkage, dry shrinkage, chemical shrinkage, autogenous shrinkage, temperature shrinkage, Carbonization contract etc.For reducing and suppress the measure that its distortion takes be:
1, condensing: when concrete setting, some water are combined with cement granules, volume is reduced, be called condensing.
2, plastic shrinkage: generally because hydration heat of cement is high, simultaneously in spring and summer season, external temperature is high and humidity is lower, the surface weeping of concrete of newly building is evaporated very soon, along with the evaporation of concrete surface moisture, inner moisture is progressively to external migration, so just caused the volumetric shrinkage of concrete in the plastic stage.
3, dry shrinkage: strengthen moist maintenance, strengthen the consumption of coarse aggregate in concrete.
4, autogenous shrinkage: add interior conserving material, as the light skeletal of full water, absorbent polymer etc.
5, temperature shrinkage: reduce the internal-external temperature difference of structure, adopt the low aggregate of the coefficient of expansion, the flyash of large volume, low heat cement, reduces cement consumption, cooling aggregate, frozen water stirs.
6, Carbonization contract: chemical coating can effectively reduce Carbonization contract.
The beneficial effect that the present invention obtains is: the geographical formula globality of these large three lattice septic tank can obviously improve ultimate compression strength; Sealing property is better, scum silica frost demixing phenomenon hardens in the damaged and pond body of the fracture that can not cause because of settlement of foundation, solve the problem of brick septic tank polluted underground water, effectively ensure the function of septic tank reliability service and anaerobism excrement, thereby make it have antiacid alkali, corrosion-resistant, long service life, seamless, good integrity, non-leakage, polluted underground water not, the pollution-free features such as ecotope that are of value to.Because this septic tank arranges three-phase separating device, inside is provided with two dividing plates, is preferably well word support 13 and dividing plate 10, and dividing plate 10 is provided with hole 8 and misplaces up and down, is difficult for forming short stream, and whole pond body is divided into three parts; One-level anaerobic room 15, secondary anaerobic chamber 12 and clarifying chamber 9, one-level anaerobic room 15 communicates with 12 bottoms, secondary anaerobic chamber, and its inside is added with " the special special type filler of MDS ".Such separation has reduced the duration of contact of sewage and mud, and two processes of acid fermentation and alkaline fermentation are not interfere with each other, and the existence of filler has simultaneously increased the contact surface area of sewage sludge and anerobe, has greatly improved reaction efficiency.Floor space of the present invention is little, adds up according to investigations its floor space only for 43% left and right of traditional septic tank, has saved land resources.
The present invention, in order to solve the scum layer phenomenon that hardens in the fracture breakage of traditional septic tank pool wall or pond, thoroughly solves the problem because of leakage pollution underground water in traditional septic tank application.Unitary mould moulding process and unique negative camber design are adopted.
Principle and the technique of the geographical formula globality of these large three lattice septic tank are: the geographical formula globality of these large three lattice septic tank is a kind of principle of utilizing precipitation and anaerobically fermenting, remove the organic treatment facility of suspension in sanitary sewage, belong to elementary transitionality life and process structures.In sanitary sewage, contain a large amount of ight soil, paper scrap, protozoon, suspended substance solids concn is 100-350mg/L, and organic concentration BOD5 is between 100-400mg/L, and wherein the organic concentration BOD5 of suspension is 50-200mg/L.Sewage enters the precipitation of this septic tank through 12-24h, can remove 50%-60% suspended substance.The mud precipitating, through above anaerobic digestion in 3 months, makes the organic substance decomposing in mud become stable inorganics, and putrefactive raw sludge is converted into stable ripe sludge, has changed the structure of mud, has reduced the water ratio of mud.Regularly by sludge clearing outward transport, landfill or as fertilizer.The geographical formula globality of large three lattice septic tank is on the basis of traditional septic tank, retain the advantage that in septic tank, muddy water mixes, increase the technology of " sewage, mud, digestion gas " three phase separation, water side at septic tank arranges three-phase separating device, mud, the digestion gas of its water side are separated with sewage treatment process, avoid the interference of air supporting phenomenon to sewage disposal.
First sewage be discharged to the first lattice one-level anaerobic room 15 by water-in, precipitate at the larger thing such as solids and parasitic ovum of 15 li of proportions of one-level anaerobic room, utilize the anaerobic bacterium in the water of pond to start preliminary fermentation decomposition, the sewage of processing through one-level anaerobic room 15 can be divided into three layers: pasty state excrement skin, the liquid manure of relatively clarification and the excrement slag of solid state.Flow into the second lattice secondary anaerobic chamber 12 through the preliminary liquid manure decomposing, floating superincumbent excrement skin and the excrement slag being deposited on below are stayed the 15 continuation fermentations of one-level anaerobic room.In secondary anaerobic chamber 12, liquid manure continues fermentation and decomposes, and worm's ovum continues to sink, and pathogenic agent is dead gradually, and liquid manure obtains further harmless treatment, and the excrement skin of generation and excrement slag Thickness Ratio one-level anaerobic room 15 significantly reduce.The liquid manure that flows into clarifying chamber 9 generally becomes thoroughly decomposed, and wherein germ and parasitic ovum are killed substantially.Clarifying chamber's 9 functions mainly play the substantially harmless liquid manure effect of temporary transient settlement on storage, last, flow into city planting ductwork through the liquid manure again precipitating by nightsoil discharging pipe 7.In addition, because the present invention is embedded in undergroundly, therefore be called buriedly, it is applied widely, the sanitary sewage preliminary treatment auxiliary facility that can be used as the industry such as residential quarters, school, hospital, Workshop and covil construction, can also be used for the transformation in rural ecological lavatory.
By reference to the accompanying drawings embodiments of the present invention are explained in detail above, but the present invention is not limited to above-mentioned embodiment, in the ken possessing those of ordinary skill in the art, can also makes many variations to it.For example, the present invention can also use as fire-fighting pond or oil trap.
Claims (10)
1. the geographical formula globality of large three lattice septic tanks, it comprises pond body, enters soil pipe, nightsoil discharging pipe and inspection port, and described pond body comprises first pond body and second pond body, and first pond body and second pond body are docking together, and are provided with seal gum at combining site; Described enter soil pipe stretch in the body of pond from one end of first pond body, nightsoil discharging pipe stretches in the body of pond from the other end of first pond body, the admission port end of nightsoil discharging pipe is positioned at pond body internal upper part; Described inspection port is arranged on first pond body; It is characterized in that: also comprise in the body of described pond three-phase separating device is set.
2. the geographical formula globality of large three lattice as claimed in claim 1 septic tank, it is characterized in that: described three-phase separating device is that two lattice are set is well word support and dividing plate to body inside, described pond, described well word support and dividing plate are divided into three storehouses by body inside, described pond successively, described three storehouses are one-level anaerobic room, secondary anaerobic chamber and clarifying chamber, and described one-level anaerobic room and bottom, secondary anaerobic chamber communicate; On described dividing plate, arrange porosely, described hole misplaces up and down.
3. the geographical formula globality of large three lattice as claimed in claim 1 or 2 septic tank, is characterized in that: described pond body contains appearance preservative coat, middle enhancement Layer and Nei Biao anti-corrosion leak-proof layer.
4. the geographical formula globality of large three lattice as claimed in claim 1 or 2 septic tank, it is characterized in that: described pond body adopts matrix material manufacture to form, and described matrix material comprises screen cloth, platinum cloth, antiseep additive, concrete, chemical materials, resin or glass reinforced plastic main stor(e)y.
5. the geographical formula globality of large three lattice as claimed in claim 4 septic tank, is characterized in that: described chemical materials comprises resin, red material, solidifying agent, Zhuo Bao, painting is carefree, waterproofing and leakage-stopping is precious.
6. the geographical formula globality of large three lattice as claimed in claim 1 or 2 septic tank, it is characterized in that: described in enter soil pipe length determine according to the septic tank of different size, length is 30-70cm, enters the vertical range 30cm between the admission port end of soil pipe and the outer top of pond body; The length of described nightsoil discharging pipe is 60cm, and the vertical range between the relief outlet end of nightsoil discharging pipe and the outer top of pond body is 30cm.
7. the geographical formula globality of large three lattice as claimed in claim 1 or 2 septic tank, is characterized in that: described first pond body 1 is docking together with second pond body 14, is provided with high-efficiency cement chemical material and seal gum at its combining site.
8. the geographical formula globality of large three lattice as claimed in claim 1 or 2 septic tank, is characterized in that: described pond body is sphere dome-shaped or ellipsoid shape.
9. the geographical formula globality of large three lattice as claimed in claim 1 or 2 septic tank, is characterized in that: the geographical formula globality of described large three lattice septic tank uses as fire-fighting pond or oil trap.
10. a making method for the geographical formula globality of large three lattice septic tank, it comprises the steps:
A, level land, brick mould, banket;
B, do concrete mold shell;
The polishing waxing of c, mold shell, laying mould release film;
D, reinforcing mat, reinforcing bar are made;
E, reinforced concrete prefabricated;
F, mechanical stripping;
G, installation Ti Neifen storehouse, pond dividing plate;
H, surface finish polishing, paving platinum cloth, sends out resin paint.
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| CN201410141960.XA CN103864276B (en) | 2014-04-10 | 2014-04-10 | Large three-lattice integrated geographical septic tank |
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| CN201410141960.XA CN103864276B (en) | 2014-04-10 | 2014-04-10 | Large three-lattice integrated geographical septic tank |
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| CN103864276A true CN103864276A (en) | 2014-06-18 |
| CN103864276B CN103864276B (en) | 2015-07-15 |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105461164A (en) * | 2015-11-26 | 2016-04-06 | 沈阳建筑大学 | Deep harmless treatment septic tank and sewage treatment method |
| CN107056002A (en) * | 2017-05-11 | 2017-08-18 | 台州瑞祥教育科技有限公司 | A kind of composite enhanced septic tank |
| CN107399813A (en) * | 2017-08-25 | 2017-11-28 | 河南文博建设工程有限公司 | A kind of method that septic tank is set using existing building raft foundation |
| CN107585990A (en) * | 2017-09-22 | 2018-01-16 | 安徽柏桦电力科技有限公司 | A kind of new three forms septic tank |
| CN108178309A (en) * | 2018-03-17 | 2018-06-19 | 凌建军 | A kind of efficient improvement septic tank |
| CN108439748A (en) * | 2018-05-30 | 2018-08-24 | 芜湖优聚塑模有限公司 | A kind of antiseep three-grid septic tank |
| CN108503172A (en) * | 2018-06-26 | 2018-09-07 | 杭州更蓝生物科技有限公司 | A kind of septic tank |
| CN108556271A (en) * | 2018-05-30 | 2018-09-21 | 芜湖优聚塑模有限公司 | A kind of lower pool body molding die of leak-proof digestion tank |
| CN108821525A (en) * | 2018-06-26 | 2018-11-16 | 杭州更蓝生物科技有限公司 | A kind of urban night soil processing system |
| CN109320038A (en) * | 2018-10-25 | 2019-02-12 | 陈春虹 | A kind of four grid septic tanks |
| CN109853721A (en) * | 2017-11-30 | 2019-06-07 | 陈志宇 | A kind of monolithic reinforced-concrete sewerage treating pond and preparation method thereof |
| CN110746066A (en) * | 2019-11-27 | 2020-02-04 | 辽宁一诺环境产业集团有限公司 | Novel septic tank and method thereof |
| CN112726808A (en) * | 2020-12-22 | 2021-04-30 | 淮北海聚环保设备有限公司 | Commercial concrete integral septic tank and forming method thereof |
| CN114906997A (en) * | 2022-06-13 | 2022-08-16 | 北控水务(中国)投资有限公司 | Integrated septic tank capable of inhibiting methane generation and treatment method |
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| CN201962182U (en) * | 2011-04-27 | 2011-09-07 | 刘利民 | Integral glass fiber reinforced plastic septic tank |
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| CN105461164A (en) * | 2015-11-26 | 2016-04-06 | 沈阳建筑大学 | Deep harmless treatment septic tank and sewage treatment method |
| CN107056002A (en) * | 2017-05-11 | 2017-08-18 | 台州瑞祥教育科技有限公司 | A kind of composite enhanced septic tank |
| CN107399813A (en) * | 2017-08-25 | 2017-11-28 | 河南文博建设工程有限公司 | A kind of method that septic tank is set using existing building raft foundation |
| CN107399813B (en) * | 2017-08-25 | 2018-03-27 | 河南文博建设工程有限公司 | A kind of method that septic tank is set using existing building raft foundation |
| CN107585990A (en) * | 2017-09-22 | 2018-01-16 | 安徽柏桦电力科技有限公司 | A kind of new three forms septic tank |
| CN109853721B (en) * | 2017-11-30 | 2021-05-11 | 四川康兴茂环保科技有限公司 | Integral reinforced concrete sewage treatment tank and preparation method thereof |
| CN109853721A (en) * | 2017-11-30 | 2019-06-07 | 陈志宇 | A kind of monolithic reinforced-concrete sewerage treating pond and preparation method thereof |
| CN108178309A (en) * | 2018-03-17 | 2018-06-19 | 凌建军 | A kind of efficient improvement septic tank |
| CN108556271A (en) * | 2018-05-30 | 2018-09-21 | 芜湖优聚塑模有限公司 | A kind of lower pool body molding die of leak-proof digestion tank |
| CN108439748A (en) * | 2018-05-30 | 2018-08-24 | 芜湖优聚塑模有限公司 | A kind of antiseep three-grid septic tank |
| CN108821525A (en) * | 2018-06-26 | 2018-11-16 | 杭州更蓝生物科技有限公司 | A kind of urban night soil processing system |
| CN108503172A (en) * | 2018-06-26 | 2018-09-07 | 杭州更蓝生物科技有限公司 | A kind of septic tank |
| CN109320038A (en) * | 2018-10-25 | 2019-02-12 | 陈春虹 | A kind of four grid septic tanks |
| CN110746066A (en) * | 2019-11-27 | 2020-02-04 | 辽宁一诺环境产业集团有限公司 | Novel septic tank and method thereof |
| CN112726808A (en) * | 2020-12-22 | 2021-04-30 | 淮北海聚环保设备有限公司 | Commercial concrete integral septic tank and forming method thereof |
| CN114906997A (en) * | 2022-06-13 | 2022-08-16 | 北控水务(中国)投资有限公司 | Integrated septic tank capable of inhibiting methane generation and treatment method |
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