CN208632180U - Efficiently vertical sedimentation basin and sewage disposal system - Google Patents
Efficiently vertical sedimentation basin and sewage disposal system Download PDFInfo
- Publication number
- CN208632180U CN208632180U CN201821116505.4U CN201821116505U CN208632180U CN 208632180 U CN208632180 U CN 208632180U CN 201821116505 U CN201821116505 U CN 201821116505U CN 208632180 U CN208632180 U CN 208632180U
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- Prior art keywords
- inclined plate
- sedimentation basin
- vertical sedimentation
- water
- sludge
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- 238000004062 sedimentation Methods 0.000 title claims abstract description 48
- 239000010865 sewage Substances 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 84
- 239000010802 sludge Substances 0.000 claims abstract description 35
- 239000004744 fabric Substances 0.000 claims abstract description 26
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 17
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 238000004140 cleaning Methods 0.000 abstract description 2
- 102000010637 Aquaporins Human genes 0.000 description 6
- 239000013618 particulate matter Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 239000010801 sewage sludge Substances 0.000 description 4
- 108091006146 Channels Proteins 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 3
- 230000001376 precipitating effect Effects 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 108010063290 Aquaporins Proteins 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920011532 unplasticized polyvinyl chloride Polymers 0.000 description 1
- 230000017260 vegetative to reproductive phase transition of meristem Effects 0.000 description 1
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- Sewage (AREA)
Abstract
The utility model discloses efficiently vertical sedimentation basin and sewage disposal system, wherein efficiently vertical sedimentation basin includes pond body, inlet and outlet are formed in the pond body, the water inlet is connected to the intracorporal cloth water chamber in pond, the two sides of the cloth water chamber are respectively formed settling zone, it is tilting in each settling zone to have one group of parallel inclined plate, clean Accrete clearing device can be carried out to the sludge on the inclined plate by bubble by being provided with below the inclined plate, the settling zone is connected to exhalant region, and the water outlet is arranged in the bottom of the exhalant region.This programme deft design, structure is simple, by increasing Accrete clearing device, generates bubble, inclined plate and turbulent water caused by when to be risen using bubble, so as to drive the sludge on inclined plate mobile, realizes the cleaning to sludge on inclined plate, avoid the occurrence of blocking water stream channel, the problem of influencing outlet effect, implementation is simple, and small to the interference of inclined plate, is conducive to extend service life.
Description
Technical field
The utility model relates to field of sewage treatment equipment, especially efficiently vertical sedimentation basin and sewage disposal system.
Background technique
Sedimentation basin is a kind of structures or equipment that suspended matter in water removal is removed using precipitation, utilizes the naturally heavy of water
It forms sediment or the effect of coagulating sedimentation removes the suspended matter in water, sedimentation basin is divided into horizontal sedimentation basin and vertical precipitating by water (flow) direction
Pond, wherein the waste water of vertical sedimentation basin is discharged into pond from top to bottom by the water inlet pipe for being located at sedimentation basin center, then waste water is along pond
Entire section slowly rise, suspended matter is settled under the effect of gravity in bottom of pond taper sludge bucket, primary water from pond upper end week
It is discharged in the overflow weir enclosed, can guarantee outlet effect by reasonably designing water intake velocity, sedimentation time etc., but it is still
With certain problem:
(1) uniformity of water inlet pipe water distribution is bad, and larger to the impact of settling zone, easily causes the disturbance of suspended matter, shadow
Ring sedimentation effect.
(2) in order to accelerate the precipitating of suspended matter, it is obliquely installed one group of parallel corrugated inclined plate in pond usually to stop
Particulate matter is moved up with water flow, but corrugated inclined plate, after stopping suspended matter, suspended matter needs to be moved to the trough position of bellows
It sets and then sinks in sludge bucket, but since trough only accounts for the general breadth of inclined plate, the channel for causing suspended matter to glide
Area greatly reduces, this results in the reduction of sludge settling speed, problem of the suspended matter siltation on inclined plate easily occurs, causes to change
Water route influences precipitation surface load, has seriously affected the use of sedimentation basin.Simultaneously because lacking necessary dredging structure, this is just
The sludge on inclined plate that causes to deposit can not be removed in time, lead to the blocking of water channel.
(3) multiple inclined plates are often and are installed in sedimentation basin after overall package again, once a certain or certain inclined plates are broken
Damage then needs whole be moved out to outside pond to be replaced, affects normal use, and complicated for operation, or even need integral replacing, at
This height is not easy to maintain；It is usually present biggish gap meanwhile when overall package, between inclined plate and pool wall, easily occurs short
Stream causes to run mud problem, influences effluent characteristics.
Utility model content
The purpose of this utility model is exactly to provide a kind of efficiently vertical to solve the above-mentioned problems in the prior art
Sedimentation basin and sewage disposal system.
The purpose of this utility model is achieved through the following technical solutions:
Efficient vertical sedimentation basin, including pond body are formed with inlet and outlet, the water inlet and pond in the pond body
The connection of intracorporal cloth water chamber, the two sides of the cloth water chamber are respectively formed settling zone, in each settling zone it is tilting have one group it is flat
Capable inclined plate, clean Accrete clearing device can be carried out to the sludge on the inclined plate by bubble by being provided with below the inclined plate,
The settling zone is connected to exhalant region, and the water outlet is arranged in the bottom of the exhalant region.
Preferably, in the efficient vertical sedimentation basin, the Accrete clearing device includes the tracheae with one group of stomata, described
Tracheae connects compression gas suppling device.
Preferably, in the efficient vertical sedimentation basin, the lower section of the inclined plate is located on the both side plate of the cloth water chamber
It is evenly distributed with one group of water distribution mouth.
Preferably, in the efficient vertical sedimentation basin, the width of the settling zone is between 1 ± 0.2m.
Preferably, in the efficient vertical sedimentation basin, the inner wall and cloth water chamber of each inclined plate and the pond body
Side plate is tightly connected or microgap connection.
Preferably, in the efficient vertical sedimentation basin, the inclined plate is plate.
Preferably, in the efficient vertical sedimentation basin, the inclined plate is formed with one group on the face of the bottom of pond body
Deflector.
Preferably, in the efficient vertical sedimentation basin, the exhalant region goes out with each settling zone by least one
Aquaporin connection.
Preferably, in the efficient vertical sedimentation basin, the height of the two sides water outlet weir plate of the exhalant canal is adjustable.
Sewage disposal system, including any of the above-described efficient vertical sedimentation basin.
The advantages of technical solutions of the utility model, is mainly reflected in:
This programme deft design, structure is simple, by increasing Accrete clearing device, bubble is generated, thus when rising using bubble
Caused by inclined plate and turbulent water realize the cleaning to sludge on inclined plate so as to drive sludge on inclined plate mobile, avoid
The problem of blocking water stream channel occur, influencing outlet effect, implementation is simple, and small to the interference of inclined plate, is conducive to extend
Service life.
Water distribution mouth is distributed on the side plate of cloth water chamber while controlling the width of each settling zone, can guarantee each inclined plate area
The uniformity of domain water distribution, so that it is guaranteed that the flow velocity of water flow is consistent in precipitation zone between each inclined plate, so that particulate matter is along certain
It can be deposited on inclined plate after line-of-road movement, guarantee that particulate matter can be by steady removal in waste water, while stablizing flow velocity and can avoid disturbing
Settled suspended matter is moved, improves sedimentation effect, it is ensured that effluent quality.
Inclined plate and horizontal plane form certain inclination angle and are placed on settling zone, shorten particle settling height, so as to shorten heavy
The time is dropped, the settling area of sedimentation basin is increased, improves the processing capacity and treatment effeciency of sedimentation basin, using plate as oblique
Plate increases suspended matter aisle spare when falling on inclined plate, while planar surface is smooth, is deposited in particulate matter on plate more
It easily is slipped to sedimentation basin bottom along inclined plate, sludge is avoided and concentrates on the problem of siltation is caused in a certain region, in combination with cloth water chamber
Water distribution enables to water distribution uniform, allows flow velocity of the water flow between each inclined plate to be consistent as far as possible, and reduce water flow to sedimentation basin
The impact at bottom improves particulate matter settling efficiency, reduces the influence to suspended matter sedimentation effect.
Inclined plate and pool wall and cloth water chamber are tightly connected, and can be avoided sewage directly between inclined plate and pool wall and cloth water chamber
Gap, which flows to above inclined plate, to be there is water flow short circuit and runs mud problem, advantageously ensures that sedimentation effect；And each inclined plate is individually pacified
Dress and it is easy to disassemble, the maintenance and replacement of single inclined plate are convenient for relative to overall package, advantageously reduce cost of parts and
Maintenance difficulties.
Deflector is added on inclined plate, ensure that water channel is uniform, avoids deformation, the sludge blockage situation of straight inclined plate.
Larger compared with traditional sludge bucket height, situations such as sewage sludge storage volume is small, and moisture percentage in sewage sludge is high, this technology passes through reduction
Sludge bucket angle improves sewage sludge storage area volume, and sludge is made to reach the compression precipitating stage, reduces moisture percentage in sewage sludge, changes sludge
Settling property improves sludge concentration, and in combination with mud scraper, the mobility of sludge, ensure that sludge bucket spoil disposal when increasing spoil disposal
Effect combines sludge condensation effect, can reduce sludge condensation technique, reduce cost.
Detailed description of the invention
Fig. 1 is the top view of the utility model；
Fig. 2 is the stereoscopic schematic diagram (partial structurtes of exhalant canal are only shown in figure) of the utility model；
Fig. 3 is the schematic diagram of the cloth water chamber of the utility model;
Fig. 4 is the schematic diagram of the exhalant canal of the utility model；
Fig. 5 is the structure sectional view in the utility model with mud scraper.
Specific embodiment
The purpose of this utility model, advantage and feature will carry out figure by the non-limitative illustration of preferred embodiment below
Show and explains.These embodiments are only the prominent examples using technical solutions of the utility model, all to take equivalent replacement or wait
Effect transformation and formed technical solution, all fall within the requires of the utility model protection within the scope of.
In the description of scheme, it should be noted that term " center ", "upper", "lower", "left", "right", "front", "rear",
The orientation or positional relationship of the instructions such as "vertical", "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings,
It is merely for convenience of description and simplification description, rather than the device or element of indication or suggestion meaning there must be specific side
Position is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " first ",
" second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.Also, in retouching for scheme
It is proximal end by the direction of proximal operator using operator as reference, the direction far from operator is distal end in stating.
The efficient vertical sedimentation basin disclosed with reference to the accompanying drawing to the utility model is illustrated, as shown in Fig. 1, packet
Pond body 1 is included, water inlet 2 and water outlet 3 are formed in the pond body 1, the water inlet 2 is connected to the cloth water chamber 4 in pond body 1,
The two sides of the cloth water chamber 4 are respectively formed settling zone 5, tilting in each settling zone 5 to have one group of parallel inclined plate 6, described
Inclined plate 6 is plate, the cloth water chamber 4, settling zone 5 front end be provided with exhalant region 7, the exhalant region 7 connects with the settling zone 5
Logical, the water outlet 3 is arranged in bottom.
From the point of view of specific, as shown in Fig. 2, the pond body 1 include from top to bottom organize integral top 11, middle part 12 and
Lower part 13, the cross sectional dimensions on the top 11 is greater than the cross sectional dimensions at middle part 12, and it is divided into the area Liang Ge by a partition 9
Domain, one of region are connected to the space at the middle part 12, the space partition in another region and middle part 12, the middle part 12
It is obliquely installed, the lower part 13 is preferably sludge bucket, so as to effectively realize the discharge of sludge.
As shown in Fig. 2, the water inlet 2 is located at a high position for the pond body 1, is specifically located at one of the top 11
On side panel, and the axis direction of the water inlet 2 and the partition 9 are perpendicular or parallel, while its inflow flow control
In 10mm/s or less.
As shown in Fig. 2, the cloth water chamber 4 includes two opposite side plates 41, they are from 2 side of water inlet
The inner wall of panel extend at the partition 9 of the other side and the side panel at middle part 12, and the side plate 41 is from the upper of institute's pond body 1
Portion 11 extends to lower part 13, meanwhile, the side plate 41 can be plate and be also possible to curved slab, preferably plate, thus described
The cross section of cloth water chamber 4 is rendered as rectangle.
As shown in Fig. 3, the lower section on two side plates 41 of the cloth water chamber 4 positioned at the inclined plate 6 is evenly distributed with one
Group water distribution mouth 42, one, increases the sewage in cloth water chamber 4 and enters the channel of settling zone 5, to guarantee the uniform of water distribution
Property, in addition, remaining to be distributed to sewage in settling zone 5 by the water distribution mouth 42 when sludge is stacked into 6 end of inclined plate.
In addition, in order to avoid settling zone 5 is wide, cause cloth water chamber 4 and water distribution mouth 42 can not uniform fold the problem of, preferably
The width of each settling zone 5 is controlled between 1 ± 0.2m, so as to guarantee the uniformity of water distribution.
The inclined plate 6 can be the smooth plate in various feasible surfaces, such as PVC board or PP plate, each inclined plate 6
It is arranged separately in the settling zone, the angle with horizontal plane is between 50 ° -60 °, so as to play optimal filtering effect
Fruit；Meanwhile side plate 41 sealed connection or microgap of each inclined plate 6 with the inner wall and cloth water chamber 4 of the pond body 1 are set
It sets, such as their gap is not more than 5mm, specifically when installation, on pool wall and can be provided with installation on the side plate 41 of cloth water chamber
Bracket, adjacent stent are spaced in 50mm or so, and inclined plate 6 is separately connected two opposite brackets in position by bolt, when
When using being tightly connected, as shown in Fig. 1, groove can be opened up on pond body inner wall and side plate 41, each inclined plate 6 is by that can be clamped
Rubber weather strip 14 in a groove is fastened on groove.
Further, inclined plate 6 deforms in order to prevent, so as to cause the gap variation between adjacent inclined plate, influences the equal of water channel
The problem of even property, is provided with one group of deflector (not shown) on the face of the bottom of pond body 1 in the inclined plate 6, described
The width of deflector is laid along water (flow) direction in 50mm or so, so as to increase the intensity of inclined plate 6, avoids it by water flow
Deformation occurs for impact.
As shown in attached drawing 1, attached drawing 2, each settling zone 5 is connected by an at least exhalant canal 8 with the exhalant region 7
Logical, specifically, the exhalant canal 8 is located at the top of 5 middle swash plate 6 of settling zone, and top is not higher than the water inlet 2
Top, in addition, since the exhalant canal 8 is installed in pond body, since pond body sedimentation or other factors lead to two sides effluent weir
Plate appearance is not contour to lead to generate water outlet in its operational process unevenly, Biased flow phenomenon, therefore the two sides of the exhalant canal 8 go out
The height of weir board 81 is adjustable, is realized by such as flowering structure:
As shown in Fig. 4, the exhalant canal 8 include saddle 82 and it is disposed thereon with water outlet weir plate 81 be the slot of side plate
Type water channel hangs down on the top surface of the saddle 82 and is equipped with one group of stay bolt 83, and being provided on the substrate 84 of the groove profile water channel can quilt
The stay bolt 83 perforative through-hole when actual installation, is first installed a holding nut 85 and is made on each stay bolt 83
They are contour, are then run through the through-hole on pedestal 84 by a stay bolt 83 respectively, and the pedestal 84 described in one group at this time to prop up
Supportting nut 85 is support, when necessary, finally, again being fixed 84 position of pedestal with each stay bolt 83 that is spirally connected of fixture nut 86.When
When needing to adjust the height of water outlet weir plate 81, the holding nut 85 of corresponding side and the height of fixture nut 86 are adjusted, two can be made
The water outlet weir plate 81 of side keeps contour.
When work, after sewage is entered in cloth water chamber 4 by water inlet 2, it is distributed in the settling zone 5 of its two sides, with dirt
Water continues to flow into, and sewage gradually rises to inclined plate 6, and the suspended matter in sewage contacts to stop after being blocked with inclined plate 6
It moves up and glides under self gravitation effect along inclined plate 6 and sink to the bottom of the pond body 1, clear water continues to rise to one
Determine to be flowed into the exhalant region 7 after height and be flowed out by water outlet 3.
In addition, in order to solve the problems, such as to occur sludge effect of reservoir siltation filter effect on the inclined plate 6, as shown in Fig. 2,
The bottom of the inclined plate 6 is additionally provided with desilting equipment 10, and the desilting equipment 10 includes one group of tracheae 101 for having stomata 102,
The tracheae 101 is preferably UPVC pipe, naturally it is also possible to be the tubing of other materials, be arranged in the lower section of the inclined plate 6
The position of 400mm ± 50mm, and it is parallel with the axis of water inlet 1 to be preferably provided with direction, (is not shown in figure by steam line
Compression gas suppling device (not shown) is connected out), and by supplying to the tracheae 101, gas is blown by the stomata 102
Out to form bubble in the bottom of inclined plate 6, bubble generates certain disturbance to each inclined plate 6 and water flow in uphill process, thus
The sludge to deposit on inclined plate 6 can be made to generate power because of vibration, sludge settling is driven, realize the effect of dredging.
Finally, as shown in Fig. 5, the inclination angle a(of the side wall 131 of the sludge bucket is dirty when the lower part 13 is sludge bucket
The angle of bucket side wall 131 and sludge bottom sheet 132) between 15 ± 5 °, to significantly increase the volume of sludge bucket, have
Conducive to the enrichment factor for improving sludge；Meanwhile the efficiently vertical sedimentation basin is additionally provided with mud scraper 20, the mud scraper 20 includes
Driving motor 201, transmission shaft 202 and scraper 203, the motor 201 are set to the top of the sedimentation basin, the transmission shaft
202 extend from top to the bottom position of the sludge bucket, and the distribution of scraper 203 is in umbrella, inclination angle and the side wall 131
Inclination angle it is close, so as to be stirred by the vulgar rotation of scraper 203 to sludge, make mud with enough flowings
Property, it ensure that the validity of spoil disposal.
The utility model further discloses a kind of sewage disposal system simultaneously, including above-mentioned efficient vertical sedimentation basin.
Still there are many embodiment, all technologies formed using equivalents or equivalent transformation for the utility model
Scheme is all fallen within the protection scope of the utility model.
Claims (10)
1. efficient vertical sedimentation basin, it is characterised in that: including pond body (1), water inlet (2) is formed on the pond body (1) and is gone out
The mouth of a river (3), the water inlet (2) are connected to the cloth water chamber (4) in pond body (1), and it is heavy that the two sides of the cloth water chamber (4) are respectively formed
Shallow lake area (5), tilting in each settling zone (5) to have one group of parallel inclined plate (6), being provided with below the inclined plate (6) can
Clean Accrete clearing device (10) carried out to the sludge on the inclined plate (6) by bubble, the settling zone (5) and exhalant region (7)
The water outlet (3) is arranged in the bottom of connection, the exhalant region (7).
2. efficiently vertical sedimentation basin according to claim 1, it is characterised in that: the Accrete clearing device (10) includes having one
The tracheae (101) of group stomata (102), the tracheae connect compression gas suppling device.
3. efficiently vertical sedimentation basin according to claim 1, it is characterised in that: the both side plate (41) of the cloth water chamber (4)
It is upper to be evenly distributed with one group of water distribution mouth (42) below the inclined plate (6).
4. efficiently vertical sedimentation basin according to claim 1, it is characterised in that: the width of the settling zone (5) 1 ±
Between 0.2m.
5. efficiently vertical sedimentation basin according to claim 1, it is characterised in that: each inclined plate (6) and the pond body
(1) inner wall is tightly connected with the side plate (41) of cloth water chamber (4) or microgap connects.
6. efficiently vertical sedimentation basin according to claim 1, it is characterised in that: the inclined plate (6) is plate.
7. efficiently vertical sedimentation basin according to claim 1, it is characterised in that: bottom of the inclined plate (6) backwards to pond body (1)
One group of deflector is formed on the face in portion.
8. efficiently vertical sedimentation basin according to claim 1, it is characterised in that: the exhalant region (7) and each described heavy
Shallow lake area (5) is connected to by an at least exhalant canal (8).
9. efficiently vertical sedimentation basin according to claim 8, it is characterised in that: the two sides of the exhalant canal (8) are discharged
The height of weir plate (81) is adjustable.
10. sewage disposal system, it is characterised in that: including any efficient vertical sedimentation basin of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821116505.4U CN208632180U (en) | 2018-07-13 | 2018-07-13 | Efficiently vertical sedimentation basin and sewage disposal system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821116505.4U CN208632180U (en) | 2018-07-13 | 2018-07-13 | Efficiently vertical sedimentation basin and sewage disposal system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208632180U true CN208632180U (en) | 2019-03-22 |
Family
ID=65737659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821116505.4U Expired - Fee Related CN208632180U (en) | 2018-07-13 | 2018-07-13 | Efficiently vertical sedimentation basin and sewage disposal system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208632180U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112370824A (en) * | 2020-11-24 | 2021-02-19 | 中国水利水电第九工程局有限公司 | Automatic dredging and water cleaning tank of sandstone production wastewater treatment system and use method |
| CN115155117A (en) * | 2022-07-06 | 2022-10-11 | 福州水质监测有限公司 | Processing apparatus for sludge water of water plant |
-
2018
- 2018-07-13 CN CN201821116505.4U patent/CN208632180U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112370824A (en) * | 2020-11-24 | 2021-02-19 | 中国水利水电第九工程局有限公司 | Automatic dredging and water cleaning tank of sandstone production wastewater treatment system and use method |
| CN112370824B (en) * | 2020-11-24 | 2021-12-14 | 中国水利水电第九工程局有限公司 | Automatic dredging and water cleaning tank of sandstone production wastewater treatment system and use method |
| CN115155117A (en) * | 2022-07-06 | 2022-10-11 | 福州水质监测有限公司 | Processing apparatus for sludge water of water plant |
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Granted publication date: 20190322 |