CN110563107A - Sewage treatment sedimentation tank structure - Google Patents
Sewage treatment sedimentation tank structure Download PDFInfo
- Publication number
- CN110563107A CN110563107A CN201910896354.1A CN201910896354A CN110563107A CN 110563107 A CN110563107 A CN 110563107A CN 201910896354 A CN201910896354 A CN 201910896354A CN 110563107 A CN110563107 A CN 110563107A
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- China
- Prior art keywords
- sedimentation tank
- tank
- sewage treatment
- water
- sludge
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
the invention discloses a sewage treatment sedimentation basin structure, and discloses a sedimentation basin structure which can be used for preventing sludge from sedimentation through inclined through holes in a filter plate and pressing and discharging sludge in a bottom sedimentation tank through water pressure. The sedimentation tank is characterized in that the bottom of the sedimentation tank is of an open structure, the sedimentation tank is arranged in the bottom of the sedimentation tank, a cross-shaped partition plate is arranged in the sedimentation tank and divides the interior of the sedimentation tank into four parts with equal size, the bottoms of the four parts of the sedimentation tank respectively extend downwards to form a conical structure, the width of the conical structure is gradually reduced from top to bottom, conical cavities are respectively arranged in the conical structure at the bottoms of the four parts of the sedimentation tank, the conical structures at the bottoms of the four parts of the sedimentation tank respectively extend downwards for a certain distance to form a discharge pipe, the sludge discharge pipe is positioned below the sedimentation tank, four branch pipes are arranged on the sludge discharge pipe and are respectively connected with the discharge pipe at the bottoms of the four parts of the sedimentation tank, and a water inlet is formed in one side wall of the sedimentation tank and.
Description
Technical Field
The invention discloses a sedimentation tank structure for sewage treatment, relates to a sedimentation tank structure for depositing sludge in sewage during sewage treatment, and belongs to the field of sewage treatment. In particular to a sedimentation tank structure which can prevent the sedimentation of the sludge through the inclined through holes on the filter plate and press and discharge the sludge in the bottom sedimentation tank through the water pressure.
Background
Sewage treatment system is as converting sewage into clean system that can reuse, but its index that reaches reuse through a series of reactions of biochemical nature with sewage purification, sedimentation tank among the used sewage treatment system of current water works adopts naturally to stew mostly, the sedimentation of this kind of mode dependence mud suspended solid self in the sewage descends to realize the deposit to the water and purifies, it is long simultaneously not good that it consumes time, and the deposit is also extremely inconvenient when the clearance at the accumulational mud of bottom.
The publication No. CN206526603U discloses a novel municipal sewage treatment sedimentation basin, which comprises a sedimentation basin body, the bottom of the sedimentation basin body is supported by a plurality of support frames, the top of the sedimentation basin body is provided with a top cover, the two sides of the bottom of the top cover are symmetrically provided with a first filter box and a second filter box, the side wall connected with the first filter box and the second filter box is provided with a plurality of first filter holes, the bottom of the second filter box is provided with a plurality of second filter holes, each support block is provided with a filter plate, the filter plate is vertically provided with a plurality of third filter holes, the outer side wall of the sedimentation basin body is fixedly provided with a driving motor, the output end of the driving motor is horizontally provided with a driving shaft, the free end of the driving shaft is provided with a driving gear, the center of the bottom of the inner side of the sedimentation basin body is provided with a fixture block, the side wall of the driving shaft is fixedly provided with a plurality of stirring blades, and the suspended matter is discharged through the suspended matter discharge port along with the outflow of the water body.
Publication No. CN208287560U discloses a sedimentation tank for sewage treatment, which comprises a natural sedimentation tank, a flocculation sedimentation tank and a filtration and purification tank which are adjacent in sequence, the interior of the natural settling tank is connected with a first clapboard which divides the natural settling tank into a water inlet chamber and a water outlet chamber with communicated bottoms, a first filter plate is arranged above the inside of the water outlet chamber, a first overflow hole which is positioned above the first filter plate and communicated with the flocculation sedimentation tank is arranged on the side wall of the water outlet chamber, the flocculation sedimentation tank is internally connected with a second partition plate which divides the flocculation sedimentation tank into a stirring chamber and a still water chamber, the bottoms of the stirring chamber and the still water chamber are communicated, the upper part in the stirring chamber is connected with a mounting plate positioned above the first overflow hole, the multistage sedimentation filtering structure of the sedimentation tank lightens the load of single filtering, but increases the workload when clearing the filtering device.
Disclosure of Invention
In order to improve the condition, the invention provides a sewage treatment sedimentation tank structure which can prevent the sludge from sedimentation through the inclined through holes on the filter plate and press and discharge the sludge in the bottom sedimentation tank through water pressure.
the invention relates to a sewage treatment sedimentation tank structure, which is realized as follows: the invention relates to a sewage treatment sedimentation tank structure which comprises a sedimentation tank, a water collecting tank, a filter plate, a connecting groove, a water outlet pipe, a sedimentation tank, a sludge discharge pipe, a water inlet pipe, an inclined through hole, a conical cavity and a V-shaped notch, wherein the bottom of the sedimentation tank is of an open structure, the sedimentation tank is arranged in the bottom of the sedimentation tank, a cross-shaped partition plate is arranged in the sedimentation tank and divides the sedimentation tank into four parts with equal size, the bottoms of the four parts of the sedimentation tank respectively extend downwards to form the conical structure of the sedimentation tank, the width of the conical structure is gradually reduced from top to bottom, the conical cavities are respectively arranged in the conical structures at the bottoms of the four parts of the sedimentation tank, the conical structures at the bottoms of the four parts of the sedimentation tank respectively extend downwards for a certain distance to form a discharge pipe, the sludge discharge pipe is positioned below the sedimentation tank, four branch pipes are arranged on the, the sedimentation tank comprises a sedimentation tank, a support ring, a filter plate, a plurality of water collecting grooves and a connecting groove, wherein a water inlet hole is formed in one side wall of the sedimentation tank and is close to the opening part of the sedimentation tank, the water inlet pipe is arranged on the outer wall of the sedimentation tank and is correspondingly communicated with the water inlet hole, the inner wall of the sedimentation tank is provided with the support ring and is positioned above the water inlet pipe, the filter plate is arranged in the sedimentation tank, the bottom of the filter plate is arranged on the support ring, the filter plate is provided with a plurality of inclined through holes, a cavity is arranged between the outer side of the filter plate and the inner wall of the sedimentation tank, the water collecting grooves are respectively arranged on the inner wall of the sedimentation tank and are respectively positioned above the filter plate, two ends of the water collecting grooves are respectively connected with the inner walls of two sides of the sedimentation tank, the water collecting grooves are distributed at equal intervals, the water collecting grooves, the water outlet hole is communicated with the inside of the connecting groove, a communicating hole is formed in the wall of the connecting groove, one end of the water outlet pipe is arranged on the connecting groove and is correspondingly communicated with the communicating hole, and a valve is arranged on the sludge discharge pipe.
further, V type breach is bilayer structure, bilayer structure V type breach is by interior baffle, outer baffle, and interior breach and triangular groove are constituteed, on the water catch bowl inside wall was arranged in to interior baffle, outer baffle was arranged in on the water catch bowl lateral wall, equidistant opening has a plurality of interior breachs on the interior baffle, equidistant opening has a plurality of triangular grooves on the outer baffle, and with the crisscross distribution of a plurality of interior breachs on the interior baffle.
Further, the filter comprises fixed plate, through-hole and spiral pipe, and in the sedimentation tank was arranged respectively to two fixed plates, and distribute from top to bottom, on the support ring was arranged in to the fixed plate that leans on down, between two fixed plates were arranged respectively to a plurality of spiral pipes, the spiral pipe slant was placed, it has a plurality of through-holes to open on the fixed plate, and is linked together with a plurality of spiral pipe one-to-ones.
Has the beneficial effects.
The filter plate adopts the inclined through holes to assist the settling pond in standing and depositing, and the working efficiency is improved.
and the bottom conical cavity is convenient for sludge to fall into the sludge discharge pipe under the water pressure and to be discharged and cleaned from the sludge discharge pipe, so that the bottom sludge is convenient to clean.
And thirdly, the water collecting tank with the V-shaped notch can effectively block the solid suspended matters.
fourthly, the cost is low, the energy consumption is low when the sludge is discharged by water pressure, and the energy is saved.
drawings
FIG. 1 is a three-dimensional structure diagram of a sewage treatment sedimentation basin structure of the present invention;
FIG. 2 is a schematic structural view of a sewage treatment settling tank structure according to the present invention;
FIG. 3 is a perspective exploded view of a sewage treatment settling tank structure of the present invention, showing only the structure of a filter plate and a settling tank;
FIG. 4 is a three-dimensional structure diagram of a water collection tank of a sewage treatment sedimentation basin structure according to the present invention;
FIG. 5 is a perspective view of a water collection tank according to an embodiment 2 of the settling tank structure for sewage treatment of the present invention;
FIG. 6 is a perspective view of a filter plate according to an embodiment of the present invention.
in the attached drawings
wherein the method comprises the following steps: sedimentation tank (1), water catch bowl (2), filter (3), spread groove (4), outlet pipe (5), sedimentation tank (6), mud pipe (7), inlet tube (8), oblique through-hole (9), toper chamber (10), V type breach (11), interior baffle (12), outer baffle (13), interior breach (14), triangular groove (15), fixed plate (16), through-hole (17), spiral pipe (18).
The specific implementation mode is as follows:
example 1:
The invention relates to a sewage treatment sedimentation tank structure, which is realized as follows: the invention relates to a sewage treatment sedimentation tank structure which comprises a sedimentation tank (1), a water collecting tank (2), a filter plate (3), a connecting groove (4), a water outlet pipe (5), a sedimentation tank (6), a sludge discharge pipe (7), a water inlet pipe (8), an inclined through hole (9), a conical cavity (10) and a V-shaped notch (11), wherein the bottom of the sedimentation tank (1) is of an open structure, the sedimentation tank (6) is arranged in the bottom of the sedimentation tank (1), a cross-shaped partition plate is arranged in the sedimentation tank (6) and divides the sedimentation tank (6) into four parts with equal sizes, the bottoms of the four parts of the sedimentation tank (6) respectively extend downwards to form the sedimentation tank (1) to form a conical structure, the width of the conical structure is gradually reduced from top to bottom, conical cavities (10) are respectively arranged in the conical structures at the bottoms of the four parts of the sedimentation tank (6), and the conical structures at the bottoms of the four parts of the sedimentation tank (6, the sludge discharge pipe (7) is positioned below the sedimentation tank (1), four branch pipes are arranged on the sludge discharge pipe (7) and are respectively connected with discharge pipes at the four parts of the bottom of the sedimentation tank (6), a water inlet hole is formed in one side wall of the sedimentation tank (1) and is close to the mouth of the sedimentation tank (6), a water inlet pipe (8) is arranged on the outer wall of the sedimentation tank (1) and is correspondingly communicated with the water inlet hole, a support ring is arranged on the inner wall of the sedimentation tank (1) and is positioned above the water inlet pipe (8), a filter plate (3) is arranged in the sedimentation tank (1), the bottom of the filter plate (3) is arranged on the support ring, a plurality of inclined through holes (9) are formed in the filter plate (3), a cavity is arranged between the outer side of the filter plate (3) and the inner wall of the sedimentation tank (1), a plurality of water collection grooves (2) are respectively arranged on the inner wall of the sedimentation tank (1) and are respectively positioned above the filter, the two ends of the water collecting tank (2) are respectively connected with the inner walls of the two sides of the sedimentation tank (1), the water collecting tanks (2) are distributed at equal intervals, the water collecting tanks (2) are of a U-shaped plate structure, the two sides of the water collecting tanks (2) are respectively provided with a plurality of V-shaped notches (11) at equal intervals, the other side of the sedimentation tank (1) is provided with a plurality of water outlet holes close to the upper position and is in one-to-one correspondence with the water collecting tanks (2), the connecting grooves (4) are arranged on the outer wall of the other side of the sedimentation tank (1), the water outlet holes are communicated with the inside of the connecting grooves (4), the wall of the connecting grooves (4) is provided with communicating holes (17), one end of the water outlet pipe (5) is arranged on the connecting grooves (4) and is communicated with the communicating holes;
When the device is used, in an initial state, a valve on the sludge discharge pipe (7) is closed, firstly, the water inlet pipe (8) and the water outlet pipe (5) are respectively connected into a pipeline in a sewage treatment system, sewage enters the sedimentation tank (1) through the water inlet pipe (8), the water inlet pipe (8) is positioned at the lower position of the sedimentation tank (1), further, the sewage with sludge gradually rises from the bottom of the sedimentation tank (1), when the sewage passes through the inclined through holes (9) on the filter plate (3), the sludge is blocked by the inclined through holes (9) to be sedimentated and fall down, the sedimentated sludge falls into the sedimentation tank (6) and then falls into the sludge discharge pipe (7) along the conical cavity (10), when the sludge accumulated at the bottom needs to be cleaned, the valve on the sludge discharge pipe (7) is opened, the sludge is pressed out under the hydraulic pressure of the sedimentation tank (1), the cleaning of the sludge is realized, when the sludge filtered by the clear water (3) rises to the height of the water collecting tank (2), clear water enters into water catch bowl (2) through V type breach (11) on water catch bowl (2), and foam class suspended solid in the clear water is kept out to V type breach (11), and the clear water in a plurality of water catch bowls (2) is respectively in gathering into spread groove (4) through the apopore that corresponds, then discharges through outlet pipe (5).
Example 2:
The difference between this example and example 1 is: the V-shaped notch (11) is of a double-layer structure, the double-layer structure V-shaped notch (11) is composed of an inner baffle (12), an outer baffle (13), an inner notch (14) and triangular grooves (15), the inner baffle (12) is arranged on the inner side wall of the water collecting tank (2), the outer baffle (13) is arranged on the outer side wall of the water collecting tank (2), the inner baffle (12) is equidistantly provided with a plurality of inner notches (14), the outer baffle (13) is equidistantly provided with a plurality of triangular grooves (15), and the outer baffle and the inner notches (14) on the inner baffle (12) are distributed in a staggered mode; when the baffle is used, the inner notches (14) and the triangular grooves (15) on the inner layer and the outer layer are staggered, so that the blocking effect on solid suspended matters can be improved.
example 3:
The difference between this example and example 1 is: the filter plate (3) consists of fixing plates (16), through holes (17) and spiral pipes (18), the two fixing plates (16) are respectively arranged in the sedimentation tank (1) and are distributed up and down, the fixing plate (16) which is arranged at the lower part is arranged on the support ring, the spiral pipes (18) are respectively arranged between the two fixing plates (16), the spiral pipes (18) are obliquely arranged, the fixing plates (16) are provided with the through holes (17) and are communicated with the spiral pipes (18) in a one-to-one correspondence manner; when the device is used, the spiral pipe (18) can slow down the rising speed of sewage, improve the interception and resisting effect on sludge in the sewage and improve the deposited filtering effect;
the bottom parts of the four parts of the sedimentation tank (6) respectively extend downwards out of the sedimentation tank (1) to form a conical structure, and the width of the conical structure is gradually reduced from top to bottom, so that sludge can slide downwards along the inner side wall of the conical structure to enter the sludge discharge pipe (7), and then the sludge can conveniently enter the sludge discharge pipe (7); (ii) a
Conical structures at the bottoms of the four parts of the settling tank (6) respectively extend downwards for a certain distance to form a discharge pipe, so that the sludge discharge tank and the settling tank (6) are conveniently connected and are mutually communicated for sludge discharge;
The design that a cavity is arranged between the outer side of the filter plate (3) and the inner wall of the sedimentation tank (1) can avoid blocking inclined through holes (9) of which the opening parts are positioned on the outer side of the filter plate (3), so that all the inclined through holes (17) and (9) can guide water to the upper part of the sedimentation tank (1);
The water collecting tank (2) is designed to be of a U-shaped plate structure, so that a certain space can be reserved in the water collecting tank (2), and the clear water can be cached;
the design of a valve is arranged on the sludge discharge pipe (7), so that the sludge discharge pipe (7) can be opened or closed as required to adapt to requirements;
The design that a plurality of V-shaped notches (11) are respectively formed in the two sides of the water collecting tank (2) at equal intervals can block solid suspended matters in clear water and prevent the solid suspended matters from entering the water collecting tank (2);
the sedimentation tank (6) is matched with the sedimentation tank (1), so that deposited sludge can be discharged under the water pressure, and sludge discharge energy is saved;
the water collecting tank (2) is matched with the V-shaped notch (11), so that suspended solid in clean water can be isolated, and the water can be prevented from entering a subsequent treatment pool;
the filter plate (3) is matched with the inclined through hole (9), so that the sludge in the sewage can be blocked in an auxiliary manner, and the sludge deposition efficiency is improved;
The sewage is deposited from the lower part through the filter plate (3), so that the sludge can be deposited under the self gravity and the blocking assistance of the inclined through hole (9), and the deposition efficiency is improved;
The clear water level rises and is drained through the water collecting tank (2), and solid suspended matters in the clear water can be isolated through the water collecting tank (2);
The purposes of stopping and settling the sludge through the inclined through holes (9) on the filter plates (3) and pressing and discharging the sludge in the bottom sedimentation tank (6) through water pressure reduction are achieved.
While the above embodiments have been described for simplicity and clarity, only the differences from the other embodiments will be described, but those skilled in the art will recognize that the above embodiments are independent technical solutions.
Claims (10)
1. The utility model provides a sewage treatment sedimentation tank structure which characterized by: the bottom of the sedimentation tank is of an open structure, the sedimentation tank is arranged in the bottom of the sedimentation tank, a cross-shaped partition plate is arranged in the sedimentation tank and divides the interior of the sedimentation tank into four parts with equal size, the bottoms of the four parts of the sedimentation tank respectively extend downwards to form a conical structure, the width of the conical structure is gradually reduced from top to bottom, a sludge discharge pipe is arranged below the sedimentation tank, four branch pipes are arranged on the sludge discharge pipe and are respectively connected with discharge pipes at the four parts of the bottom of the sedimentation tank, a water inlet hole is arranged on one side wall of the sedimentation tank and is close to the opening part of the sedimentation tank, a water inlet pipe is arranged on the outer wall of the sedimentation tank and is correspondingly communicated with the water inlet hole, a support ring is arranged on the inner wall of the sedimentation tank and is positioned above the water inlet pipe, a filter plate is arranged in the sedimentation tank, the bottom of the filter plate is arranged on the support ring, a plurality of, the both ends of water catch bowl are connected with the both sides inner wall of sedimentation tank respectively, and a plurality of water catch bowls equidistance distribute, and the both sides equidistance of water catch bowl is opened respectively has a plurality of V type breachs, and the opposite side of sedimentation tank leans on the upper reaches the position to open has a plurality of apopores, and with a plurality of water catch bowl one-to-ones, the spread groove is arranged in on the sedimentation tank opposite side outer wall, apopore and spread groove inside are linked together, it has the intercommunicating pore to open on the connecting groove wall, outlet pipe one end is arranged in.
2. The sewage treatment sedimentation tank structure according to claim 1, wherein the V-shaped notch is a double-layer structure, the double-layer structure V-shaped notch is composed of an inner baffle, an outer baffle, an inner notch and triangular grooves, the inner baffle is disposed on the inner side wall of the water collection tank, the outer baffle is disposed on the outer side wall of the water collection tank, a plurality of inner notches are equidistantly formed on the inner baffle, a plurality of triangular grooves are equidistantly formed on the outer baffle, and the inner notches are staggered with the plurality of inner notches on the inner baffle.
3. The structure of sewage treatment settling tank of claim 1, wherein the filtering plate comprises a fixing plate, through holes and spiral pipes, the two fixing plates are respectively disposed in the settling tank and distributed up and down, the lower fixing plate is disposed on the support ring, the spiral pipes are respectively disposed between the two fixing plates, the spiral pipes are obliquely disposed, and the fixing plate is provided with a plurality of through holes and is in one-to-one correspondence with the spiral pipes.
4. The sewage treatment sedimentation tank structure according to claim 1, wherein the conical cavities are respectively arranged in the conical structures at the bottoms of the four parts of the sedimentation tank.
5. The structure of sewage treatment settling pond of claim 1 or 4, wherein the tapered structures at the bottom of the four sections of the settling tank extend downward a distance to form a discharge pipe.
6. the structure of sewage treatment settling pond according to claim 1 or 3, wherein a cavity is formed between the outer side of the filter plate and the inner wall of the settling pond to prevent the inclined through holes at the outer side of the filter plate from being blocked, so that all the inclined through holes can guide water to the upper part of the settling pond.
7. The sewage treatment settling pond structure of claim 1, wherein the water collection tank is a U-shaped plate structure.
8. The structure of a sewage treatment settling tank of claim 1, wherein in use, sewage enters the settling tank through the water inlet pipe, the water inlet pipe is located at a lower position of the settling tank, and the sewage with sludge gradually rises from the bottom of the settling tank, and when passing through the inclined through holes on the filter plate, the sludge is blocked by the inclined through holes and is deposited and falls, and the deposited sludge falls into the settling tank and then falls into the sludge discharge pipe along the tapered cavity.
9. The sewage treatment sedimentation tank structure according to claim 1, wherein the water collection tank is engaged with the V-shaped notch to separate suspended solids in the clean water from entering the subsequent treatment tank.
10. The sewage treatment settling pond structure of claim 1, wherein a valve is disposed on the sludge discharge pipe.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910896354.1A CN110563107B (en) | 2019-09-23 | 2019-09-23 | Sewage treatment sedimentation tank structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910896354.1A CN110563107B (en) | 2019-09-23 | 2019-09-23 | Sewage treatment sedimentation tank structure |
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| Publication Number | Publication Date |
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| CN110563107A true CN110563107A (en) | 2019-12-13 |
| CN110563107B CN110563107B (en) | 2022-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910896354.1A Active CN110563107B (en) | 2019-09-23 | 2019-09-23 | Sewage treatment sedimentation tank structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111302459A (en) * | 2020-02-25 | 2020-06-19 | 广州市汇鹏建设有限公司 | Municipal administration environmental protection sewage sedimentation treatment system |
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| CN202983304U (en) * | 2013-01-07 | 2013-06-12 | 唐山亨通科技有限公司 | Efficient vertical flow inclined plate settling pond |
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| CN107376500A (en) * | 2017-08-15 | 2017-11-24 | 四川奥恒环保科技有限公司 | A kind of sewage water filtration sedimenting system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999011353A1 (en) * | 1997-08-30 | 1999-03-11 | Dieter Eppler Wasseraufbereitung | Upflow sludge blanket filtering plant for treating drinking water |
| KR20020067228A (en) * | 2001-02-16 | 2002-08-22 | (주)경동이엔씨 | Prefabricated disposal plant of waste or water polluted |
| KR20060071838A (en) * | 2005-07-01 | 2006-06-27 | 진성언 | Compact waste water treatment apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111302459A (en) * | 2020-02-25 | 2020-06-19 | 广州市汇鹏建设有限公司 | Municipal administration environmental protection sewage sedimentation treatment system |
| CN111302459B (en) * | 2020-02-25 | 2022-07-08 | 广州市汇鹏建设有限公司 | Municipal administration environmental protection sewage sedimentation treatment system |
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| CN110563107B (en) | 2022-08-19 |
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