CN113521808A - New process for treating tail water of tap water - Google Patents
New process for treating tail water of tap water Download PDFInfo
- Publication number
- CN113521808A CN113521808A CN202110635906.0A CN202110635906A CN113521808A CN 113521808 A CN113521808 A CN 113521808A CN 202110635906 A CN202110635906 A CN 202110635906A CN 113521808 A CN113521808 A CN 113521808A
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- Prior art keywords
- water
- mud
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- pump
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/02—Settling tanks with single outlets for the separated liquid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/02—Settling tanks with single outlets for the separated liquid
- B01D21/04—Settling tanks with single outlets for the separated liquid with moving scrapers
- B01D21/06—Settling tanks with single outlets for the separated liquid with moving scrapers with rotating scrapers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/245—Discharge mechanisms for the sediments
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/04—Combinations of filters with settling tanks
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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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
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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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
- C02F11/147—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using organic substances
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- 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 new process for treating tap water tail water, which comprises a horizontal sedimentation tank, a channel, a concentration tank, a mud-water flocculation separation tank and a dewatering hoist, wherein the horizontal sedimentation tank scrapes and collects sediments in the tail water through a scraper of a mud scraping and sucking machine, then a lift pump sucks and discharges the precipitated mud water to the channel, a submersible sewage pump of the channel directly sucks the mud water into the concentration tank, the underground sludge tank is not used for storing the mud water, the sediment clogging of the sludge discharge tank is solved, a pipeline pump at the bottom of the concentration tank sucks and lifts the mud water into the mud-water flocculation separation tank, the mud-water flocculation separation tank uniformly mixes the mud water and a PAM flocculating agent to strengthen flocculation and agglomeration, the mud particle mass sinks in a large specific gravity direction, the mud water automatically flows into the dewatering hoist from an outlet at the lower part of the mud-water flocculation separation tank, the dewatering hoist replaces structures such as a dewatering machine room, a balance pool and the like, a centrifugal dehydrator, a screw pump and a screw conveyer, The equipment such as the impeller reduces the investment and the use of land, and also solves the problem of blockage of the equipment and the pipeline.
Description
The technical field is as follows:
the invention relates to the production field of tap water plants, in particular to a novel process for treating tap water tail water.
Background art:
the existing tail water treatment method of the water works generally comprises the following steps:
the raw water enters a horizontal sedimentation tank for sedimentation, the sediment muddy water at the bottom of the tank is sucked and discharged to an edge channel through a mud scraping and sucking machine and flows into an underground sludge discharge tank, a water flow is pushed by a flow pushing device to wrap silt so as not to precipitate, the muddy water is pumped into a concentration tank by a submersible sewage pump, a large amount of clear supernatant is discharged from the concentration tank, the concentrated muddy water after being scraped by a thickener is discharged into a balance tank through high-low water pressure difference, and the sediment of the concentrated muddy water is easy to precipitate and deposit and block due to larger content of the silt, the thickener is clamped in a silt accumulation tank, the capacity of the tank is reduced, the supernatant is turbid, the silt is deposited and blocked in a pipeline, and the silt is often cleaned manually, laborious and time-consuming. The mud water in the balance pool is pumped into a centrifugal dehydrator for dehydration through a cutting machine, a screw pump and a PAM flocculating agent, and the rotation speed is high, the requirement on the concentration of the mud is high, so that the power consumption is high, the noise is large, and the operation is difficult.
The invention content is as follows:
the invention aims to provide a novel process for treating tap water tail water, which aims to solve the problems that manual cleaning is labor-consuming and time-consuming and difficult to treat, a centrifugal dehydrator is high in power consumption, high in noise, difficult to operate and the like in a large amount of silt accumulation tanks and pipelines in the conventional tail water treatment process provided by the background art.
In order to realize the purpose, the invention provides the following technical scheme:
a process for treating tail water from running water includes horizontal sedimentation tank, sludge scraper, channel, sewage submersible pump, concentrating tank, concentrating machine, pipeline pump, sludge-water flocculation separator and dewatering lifter.
The horizontal sedimentation tank is internally provided with a mud scraping and sucking machine, a water collecting tank, a track, a mud scraping and sucking machine scraper plate and a lifting pump, the mud scraping and sucking machine drives the mud scraping and sucking scraper plate to move back and forth along the track, sediment precipitated at the bottom in tail water is accumulated, the lifting pump sucks the sediment at the bottom of the tank and discharges the sediment to a channel through a mud scraping and sucking machine water outlet pipe, and clarified water is collected by the water collecting tank and flows into a next filtering process.
A submersible sewage pump is arranged at the tail part of the channel, a channel scraper blade is arranged below a water outlet pipe of the sludge scraping and sucking machine, and the channel scraper blade is driven by the operation of the sludge scraping and sucking machine to scrape and push sludge in the channel to a suction port of the submersible sewage pump at the tail part of the channel; the submersible sewage pump is interlocked with the sludge scraping and sucking machine, and the submersible sewage pump is started after the sludge discharging and sucking machine discharges sludge water to a certain water level; limiting the channel to a high water level, and suspending drainage and sludge discharge by a sludge scraping and sucking machine; the channel is limited to a low water level, and the submersible sewage pump stops.
The muddy water does not need to be discharged into an underground mud discharging pool for storage.
The thickener is provided with a thickener, a pipeline pump and a water collecting tank, the thickener is driven by the center of the thickener to drive a mud scraping plate of the thickener, sediment is scraped and pushed to a bottom mud pit, and the sediment is pumped to a mud-water flocculation separation tank through the pipeline pump.
The mud-water flocculation separation tank is provided with a stirrer and a filtering device, the mud water is added with a PAM flocculating agent for stirring, flocculation, concentration and separation, the supernatant is discharged through the filtering device, and the flocculated concentrated slurry is discharged into a dewatering lifter from the lower opening of the concentration tank.
The sludge-water flocculation separation tank has the functions of sludge-water medicament mixing, silt flocculation, concentration, sludge-water separation and the like. The function of the mud-water flocculation separation tank is superior to that of the balance tank, the power consumption is less than that of the balance tank, the mud water is uniform in concentration, and the silt is not accumulated and blocked.
The dehydration hoister has the functions of dehydration and hoisting, slurry is dehydrated into mud cakes and is sent out to directly fall into a storage bin, and the storage bin is discharged to a transport vehicle for transportation.
The dewatering hoister replaces a dewatering machine room and devices such as a centrifugal dehydrator, a screw pump, a screw conveyer and the like.
Compared with the prior art, the method has the beneficial effects.
(1) The mud-water flocculation separation tank and the dewatering hoister are used for replacing structures such as a dewatering machine room and a balance tank and equipment such as a centrifugal dehydrator, a screw pump, a screw conveyor and a flow impeller, and the troubles of blockage and washing of the equipment and a pipeline are avoided.
(2) The sludge water is directly pumped into the concentration tank from the channel by a submersible sewage pump, the underground sludge tank is not used for storing the sludge water, and the sediment clogging of the sludge tank is not caused.
(3) The supernatant of the concentration tank is similar to the water quality of the horizontal flow sedimentation tank, no PAM water flows in, the water quality at the moment accords with the turbidity requirement of the sedimentation outlet water, the sand filtration process can be directly discharged, the tail water is recycled, and the water resource is effectively saved.
(4) The bottom concentrated muddy water is pumped by a pipeline pump, and a blockage thickener cannot exist; the efficiency, the convenience and the reliability of the pipeline pump for improving the muddy water are far higher than those of a spiral conveyor for conveying mud cakes.
(5) The investment is saved, the occupied area is small, the power consumption is low, the operation is easy, the operation and maintenance cost is low, the integration with a storage bin is convenient, and the environment is clean.
Description of the drawings:
FIG. 1 is a schematic sectional view of the present invention
FIG. 2 is a schematic sectional view taken along line A-A of FIG. 1
FIG. 3 is a schematic view of the structure of FIG. 1 from the top view B
FIG. 4 is a process flow diagram of the present invention
In the figure: 1. a horizontal flow sedimentation tank; 2. a water collecting tank of the advection pool; 3. a mud scraping and sucking machine; 4. a lift pump; 5. a first pipeline; 6. a channel; 7. a channel scraper; 8. a submersible sewage pump; 9. a second pipeline; 10. a concentration tank; 11. a thickener; 12. a thickener scraper plate; 13. a pipeline pump; 14. a third pipeline; 15. a sludge-water flocculation separation tank; 16. a fourth pipeline; 17. a dewatering hoist; 18. a track; 19. a scraper of the mud scraping and sucking machine; 20. a filtration device; 21. a stirrer; 22. the concentrated pond water catch bowl.
The specific implementation mode is as follows:
the technical solutions in the embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a process scheme: a novel tap water tail water desliming process comprises a horizontal sedimentation tank 1, a horizontal sedimentation tank water collecting tank 2, a sludge scraping and sucking machine 3, a lifting pump 4, a pipeline I5, a channel 6, a channel scraper 7, a submersible sewage pump 8, a pipeline II 9, a concentration tank 10, a concentrator 11, a concentrator sludge scraping plate 12, a pipeline pump 13, a pipeline III 14, a sludge-water flocculation separation tank 15, a pipeline IV 16, a dehydration lifter 17, a track 18, a sludge scraping and sucking machine scraper 19, a filtering device 20, a stirrer 21 and a concentration tank water collecting tank 22.
The horizontal sedimentation tank 1 is provided with a horizontal sedimentation tank water collecting tank 2, a mud scraping and sucking machine 3, a lifting pump 4, a track 18 and a mud scraping and sucking machine scraper 19. The mud scraping and sucking machine 3 runs on a track 18 of the horizontal sedimentation tank 1, sediments in tail water are scraped and collected through a mud scraping and sucking machine scraper 19, and the precipitated mud water is sucked and discharged to the channel 6 through the first pipeline 5 by the lifting pump 4. Clear water clarified by the horizontal flow sedimentation tank 1 is collected by the water collecting tank 2 of the horizontal flow sedimentation tank and flows into the filtering process.
The submerged sewage pump 8 is installed at the sunken part of the channel 6 channel tail, the channel scraper 7 is installed below a first 5 water outlet pipeline of the sludge scraping and sucking machine, the channel scraper 7 is driven by the first 5 pipeline to operate, sludge in the scraping and pushing channel 6 is scraped to the inlet of the submerged sewage pump 8 at the tail part of the channel 6, and tail water is directly pumped to the inlet of the concentration tank through a second 9 pipeline by the submerged sewage pump 8. The submersible sewage pump 8 is interlocked with the sludge scraping and sucking machine 3, and the submersible sewage pump 8 is started after the sludge scraping and sucking machine 3 sucks tail water to cause the water in the channel 6 to accumulate to a certain water level; limiting the channel 6 to a high water level, and temporarily discharging muddy water by the mud scraping and sucking machine 3; the channel 6 is limited to a low water level, the submersible sewage pump 8 is stopped, and muddy water does not need to be discharged into an underground sludge discharge pool for storage.
The concentration tank 10 is provided with a thickener 11, a thickener scraper 12 and a concentration tank water collecting tank 22, the thickener 11 adopts central transmission, silt is scraped and collected to a mud pit at the bottom of the tank through the thickener scraper 12, muddy water is sucked and lifted into a muddy water flocculation separation tank 15 through a pipeline III 14 by a pipeline pump 13, and supernatant separated from the concentration tank 10 is collected through the concentration tank water collecting tank 12 and flows into a filtering process, so that tail water recycling is realized.
The mud-water flocculation separation tank 15 is provided with a stirrer 21 and a filtering device 20, the stirrer 21 uniformly mixes the mud water and the PAM flocculating agent to strengthen flocculation and agglomeration, the specific gravity of the mud-water particle group is large and sinks downwards, the supernatant is filtered and discharged by the filtering device 20, and the flocculated mud-water particle group at the lower part of the mud-water flocculation separation tank 15 is discharged into a dewatering elevator 17 through a pipeline four 16.
The dehydration hoister 17 has dehydration and hoisting functions, slurry is dehydrated into mud cakes and is sent out to directly fall into a storage bin, and the storage bin is discharged to a transport vehicle for transportation.
Claims (5)
1. The utility model provides a new technology of running water tail water treatment, includes advection sedimentation tank (1), channel (6), concentration tank (10), muddy water flocculation knockout drum (15), dewatering lifting machine (17), its characterized in that: the horizontal sedimentation tank (1) is provided with a horizontal sedimentation tank water collecting tank (2), a sludge scraping and sucking machine (3), a lifting pump (4), a track (18) and a sludge scraping and sucking machine scraper blade (19), a channel (6) and a channel tail sinking position are provided with a sludge submerging pump (8), a channel scraper blade (7) is arranged below a sludge scraping and sucking machine water outlet pipeline I (5), a concentration tank (10) is provided with a concentrator (11), a concentrator scraper blade (12), a concentration tank water collecting tank (22) and a pipeline pump (13) and is arranged at a sludge water outlet at the bottom of the concentration tank, a sludge water flocculation separation tank (15) is provided with a stirrer (21) and a filtering device (20), and the process flow is that
The new process for treating tap water tail water according to claim 1, characterized in that: the scraping and sucking machine (3) installed on the horizontal sedimentation tank (1) runs on a track (18) of the horizontal sedimentation tank, sediment in tail water is scraped and collected through a scraping plate (19) of the scraping and sucking machine, then the settled muddy water is sucked and discharged to a channel (6) through a first pipeline (5) by a lift pump (4), and clear water clarified by the horizontal sedimentation tank (1) is collected through a water collecting tank (2) of the horizontal sedimentation tank and flows into a filtering process.
2. The new process for treating tap water tail water according to claim 1, characterized in that: channel (6) canal tail sinks the department installation and stealthily defiles pump (8), channel scraper blade (7) are installed and are being scraped suction dredge outlet conduit one (5) below, channel scraper blade (7) are driven the operation by pipeline one (5), scrape and push away silt in channel (6) to channel (6) afterbody stealthily defiles pump (8) entry, directly beat the concentrated pond entry with stealthily defiles pump (8) through pipeline two (9) with the tail water, directly aspirate muddy water into concentrated pond with stealthily defiles pump (8) from channel (6), no longer use underground sludge pond storage muddy water, solve the sediment stifled of sludge discharging pond.
3. The new process for treating tap water tail water according to claim 1, characterized in that: a thickener (11), a thickener scraper plate (12) and a thickener water collecting tank (22) are arranged on a thickener (10), the thickener (11) adopts central transmission, silt is scraped and collected to a mud pit at the bottom of the thickener through the thickener scraper plate (12), muddy water is pumped and lifted to a muddy water flocculation separation tank (15) through a pipeline pump (13), and supernatant separated out by the thickener (10) is collected through the thickener water collecting tank (12) and flows into a filtering process, so that tail water recycling is realized.
4. The new process for treating tap water tail water according to claim 1, characterized in that: the mud-water flocculation separation tank (15) is provided with a stirrer (21) and a filtering device (20), the stirrer (21) uniformly mixes mud water and PAM flocculating agent to strengthen flocculation and agglomeration, the specific gravity of the mud-water particle groups is large and sinks, supernatant is filtered and discharged by the filtering device (20), and the flocculated mud-water particle groups at the lower part of the mud-water flocculation separation tank (15) are discharged into a dewatering hoister (17) through a pipeline four (16).
5. The new process for treating tap water tail water according to claim 1, characterized in that: the dewatering hoister (17) has dewatering and hoisting functions, slurry is dewatered to form a mud cake which is sent out, the structures such as a dewatering machine room, a balance tank and the like, and the equipment such as a centrifugal dehydrator, a screw pump, a screw conveyer, a flow impeller and the like are replaced by the mud-water flocculation separation tank (15) and the dewatering hoister (17), and the troubles of blockage and washing of the equipment and pipelines are avoided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110635906.0A CN113521808B (en) | 2021-06-08 | 2021-06-08 | New process for treating tap water tail water |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110635906.0A CN113521808B (en) | 2021-06-08 | 2021-06-08 | New process for treating tap water tail water |
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| CN113521808A true CN113521808A (en) | 2021-10-22 |
| CN113521808B CN113521808B (en) | 2023-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110635906.0A Active CN113521808B (en) | 2021-06-08 | 2021-06-08 | New process for treating tap water tail water |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115180700A (en) * | 2022-07-21 | 2022-10-14 | 安徽东至广信农化有限公司 | Tail water treatment process for water purification station |
| CN115414729A (en) * | 2022-09-21 | 2022-12-02 | 甘肃第三建设集团有限公司 | Mud cleaning device for filtering and settling tank of water plant |
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| KR101632325B1 (en) * | 2016-01-08 | 2016-06-21 | 롯데건설(주) | Apparatus for sewage treatment combined with decanter for mixing chemicals and granule sludge selecting unit |
| CN207347372U (en) * | 2017-07-31 | 2018-05-11 | 杭州同美水处理技术有限公司 | A kind of mud thickening system |
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| CN101935140A (en) * | 2010-07-23 | 2011-01-05 | 无锡市通用机械厂有限公司 | Dehydration treatment method for tail water sludge of water-work and special apparatus thereof |
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| CN115414729A (en) * | 2022-09-21 | 2022-12-02 | 甘肃第三建设集团有限公司 | Mud cleaning device for filtering and settling tank of water plant |
| CN115414729B (en) * | 2022-09-21 | 2024-01-09 | 甘肃第三建设集团有限公司 | Mud cleaning device for filtering sedimentation tank of water plant |
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| CN113521808B (en) | 2023-08-25 |
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