CN113521808B - New process for treating tap water tail water - Google Patents
New process for treating tap water tail water Download PDFInfo
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- CN113521808B CN113521808B CN202110635906.0A CN202110635906A CN113521808B CN 113521808 B CN113521808 B CN 113521808B CN 202110635906 A CN202110635906 A CN 202110635906A CN 113521808 B CN113521808 B CN 113521808B
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- mud
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- pipeline
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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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a new tap water tail water treatment process, which comprises a advection sedimentation tank, a channel, a concentration tank, a mud-water flocculation separation tank and a dewatering lifter, wherein sediment in tail water is scraped and collected by the advection sedimentation tank through a scraper of a mud scraping and sucking machine, the sedimented mud is sucked and discharged to the channel by a lifting pump, a submersible sewage pump of the channel directly sucks the mud into the concentration tank, the underground mud discharging tank is not used for storing mud, the sediment blocking of the mud discharging tank is solved, a pipeline pump at the bottom of the concentration tank sucks the mud into the mud-water flocculation separation tank, the mud-water flocculation separation tank uniformly mixes the mud and the PAM flocculant to strengthen flocculation agglomeration, the specific gravity of the mud particle mass is greatly reduced, the mud is automatically discharged into the dewatering lifter from an outlet at the lower part of the mud-water flocculation separation tank, and the dewatering lifter is used for replacing structures such as a dewatering machine room, a balance tank, a centrifugal dehydrator, a screw pump, a screw conveyer, a flow pushing device and the like, and the use of investment and land blocking problems of equipment and pipelines are also solved.
Description
Technical field:
the invention relates to the field of tap water plant production, in particular to a novel tap water tail water treatment process.
The background technology is as follows:
the existing tail water treatment method of the tap water plant at present is generally as follows:
after raw water enters a advection sedimentation tank for sedimentation, sediment mud water at the bottom of the tank is sucked and discharged to a side channel through a mud scraping and sucking machine, and flows into an underground mud discharging tank, a flow pushing device pushes water to wrap mud and sand so as not to enable the sediment to be precipitated, mud water is pumped into a concentration tank by a submersible sewage pump, a large amount of clear supernatant is discharged on the concentration tank, concentrated mud water after the concentrated mud water is scraped and collected by the thickener is discharged into a balance tank through high-low water pressure difference, and because the sediment content of the concentrated mud water is larger, sediment and sediment are easy to block, the thickener is blocked in the sediment accumulation tank, the tank capacity is reduced, the supernatant is turbid, and the sediment and sediment are blocked in a pipeline, so that manual cleaning is often needed, labor and time are wasted, and difficult to treat. The mud water in the balancing tank is pumped into a centrifugal dehydrator for dehydration through a cutting machine, a screw pump and a PAM flocculant, and the rotation speed is high, so that the slurry concentration requirement is high, the power consumption is high, the noise is high, and the operation is difficult.
The invention comprises the following steps:
the invention aims to provide a new tap water tail water treatment process, which aims to solve the problems of labor and time consuming and difficult treatment of manual cleaning, high power consumption, high noise, difficult operation and the like of the centrifugal dehydrator in a large amount of sediment accumulation ponds and pipelines in the existing tail water treatment process provided by the background technology.
In order to achieve the above purpose, the invention provides the following technical scheme:
a new technology for treating the tail water of tap water includes such units as advection settling tank, mud scraping and sucking machine, channel, submersible sewage pump, concentration tank, concentration machine, pipeline pump, mud-water flocculation separating tank and dewatering lifter.
The device is characterized in that a mud scraping and sucking machine, a water collecting tank, a track, a mud scraping and sucking machine scraper and a lifting pump are arranged in the advection sedimentation tank, the mud scraping and sucking machine drives the mud scraping and sucking scraper to reciprocate along the track, sediment precipitated at the bottom in tail water is accumulated, sediment at the bottom of the tank is sucked by the lifting pump and discharged into a channel through a mud scraping and sucking machine water outlet pipe, and clarified water is collected through the water collecting tank and flows into a next filtering process.
The tail of the channel is provided with a submersible sewage pump, a channel scraping plate is arranged below a water outlet pipe of the mud scraping and sucking machine, and the mud scraping plate is driven to scrape mud in the channel to a suction port of the submersible sewage pump at the tail of the channel by using the operation of the mud scraping and sucking machine; the submersible sewage pump is interlocked with the mud scraping and sucking machine, and the submersible sewage pump is started after the mud is discharged by the mud scraping and sucking machine to reach a certain water level in a channel; the channel reaches a high water level to limit, and the mud scraping and sucking machine pauses drainage and mud discharge; and the channel reaches the low water level to limit, and the submersible sewage pump stops.
The muddy water is not required to be discharged into an underground sludge discharge pond for storage.
The concentrating tank is provided with a concentrating machine, a pipeline pump and a water collecting tank, the center of the concentrating machine is driven to drive a mud scraping plate of the concentrating machine to scrape and push sediment into a bottom mud accumulation pit, and the sediment is pumped into 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 is added with PAM flocculant to carry out stirring, flocculation, concentration and separation, supernatant is discharged through the filtering device, and flocculated concentrated slurry is discharged into the dewatering elevator from the lower opening of the concentration tank.
The mud-water flocculation separation tank has the functions of mud-water agent mixing, mud-water flocculation, concentration, mud-water separation and the like. The mud-water flocculation separation tank has the functions superior to that of the balance tank, the power consumption is less than that of the balance tank, the mud-water concentration is uniform, and the sediment is not blocked.
The dehydration elevator has dehydration and lifting functions, mud is dehydrated into mud cakes to be sent out and directly falls into a storage bin, and the storage bin is released into a transport vehicle for outward transportation and disposal.
The dewatering elevator replaces the dewatering machine room, centrifugal dewatering machine, screw pump, screw conveyer and other devices.
Compared with the prior art, the invention has the beneficial effects.
(1) The mud-water flocculation separation tank and the dewatering lifter are used for replacing structures such as a dewatering machine room, a balancing tank and the like, and equipment such as a centrifugal dewatering machine, a screw pump, a screw conveyor, a flow pushing device and the like, so that the trouble of blocking and flushing of the equipment and a pipeline is avoided.
(2) The mud water is directly pumped into the concentration tank by the submersible sewage pump from the channel, the underground mud discharging tank is not used for storing the mud water, and the sediment clogging of the mud discharging tank is not needed.
(3) The supernatant of the concentration tank and the water quality of the parallel sedimentation tank are similar, no PAM water flows in, and the water quality at the moment meets the turbidity requirement of the sedimentation effluent, so that the water can be directly discharged into a sand filtration process, the tail water is recycled, and the water resource is effectively saved.
(4) The mud water concentrated at the bottom is pumped by a pipeline pump, so that a blocking thickener can not be arranged; the efficiency, convenience and reliability of the pipeline pump for improving mud water are far higher than those of a screw conveyor for conveying mud cakes.
(5) The investment is saved, the occupied area is small, the electricity consumption is low, the operation is easy, the operation and maintenance cost is low, the integration with the storage bin is convenient, and the environment is clean.
Description of the drawings:
FIG. 1 is a schematic view of the whole sectional structure of the present invention
FIG. 2 is a schematic view of the structure taken along line A-A in FIG. 1
FIG. 3 is a schematic view showing the structure of FIG. 1 in the B-direction
FIG. 4 is a process flow diagram of the present invention
In the figure: 1. a advection sedimentation tank; 2. a advection pool water collecting tank; 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; 13. a pipeline pump; 14. a third pipeline; 15. a mud-water flocculation separation tank; 16. a fourth pipeline; 17. a dewatering elevator; 18. a track; 19. a scraper of a mud scraping and sucking machine; 20. a filtering device; 21. a stirrer; 22. a concentrating tank water collecting tank.
The specific embodiment is as follows:
the following description of the technical solutions according to the embodiments of the present invention will be given with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-4, the present invention provides a process scheme: a new tap water tail water desliming process comprises a advection sedimentation tank 1, a advection tank water collecting tank 2, a mud scraping and sucking machine 3, a lifting pump 4, a first pipeline 5, a channel 6, a channel scraping plate 7, a submersible sewage pump 8, a second pipeline 9, a concentration tank 10, a concentrator 11, a concentrator scraping plate 12, a pipeline pump 13, a third pipeline 14, a mud flocculation separation tank 15, a fourth pipeline 16, a dewatering lifting machine 17, a track 18, a mud scraping and sucking machine scraping plate 19, a filtering device 20, a stirrer 21 and a concentration tank water collecting tank 22.
The advection sedimentation tank 1 is provided with a advection 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 advection sedimentation tank 1, sediment in tail water is scraped and collected by a mud scraping and sucking machine scraping plate 19, and the settled mud water is sucked and discharged to the channel 6 by the lifting pump 4 through a first pipeline 5. The clear water clarified by the advection sedimentation tank 1 is collected by the advection tank water collecting tank 2 and flows into the filtering process.
The sinking part of the channel tail of the channel 6 is provided with a submersible sewage pump 8, the channel scraping plate 7 is arranged below the water outlet pipeline I5 of the mud scraping and sucking machine, the channel scraping plate 7 is driven to operate by the pipeline I5, mud in the channel 6 is scraped and pushed to the inlet of the submersible sewage pump 8 at the tail of the channel 6, and the submersible sewage pump 8 is used for directly pumping tail water to the inlet of a concentration tank through the pipeline II 9. The submersible sewage pump 8 is interlocked with the mud scraping and sucking machine 3, and after the tail water is sucked into the channel 6 by the mud scraping and sucking machine 3 to reach a certain water level, the submersible sewage pump 8 is started; the channel 6 is limited to a high water level, and the mud scraping and sucking machine 3 pauses to discharge mud water; the channel 6 is limited to a low water level, the submersible sewage pump 8 is stopped, and the muddy water is not required to be discharged into an underground sludge discharge pool for storage.
The thickener 11 adopts central transmission, scrapes and gathers silt to the bottom of the pool mud pit through the compressor scraper 12, pumps and lifts muddy water into the muddy water flocculation separation tank 15 through the pipeline III 14 by the pipeline pump 13, and the supernatant liquid separated by the thickener 10 is collected and flows into the filtering process through the thickener water collection tank 12, thereby realizing the recycling of tail water.
The mud-water flocculation separation tank 15 is provided with a stirrer 21 and a filter device 20, the stirrer 21 uniformly mixes mud and PAM flocculating agents to strengthen flocculation agglomeration, the specific gravity of the silt particle mass is greatly reduced, supernatant fluid is filtered and discharged through the filter device 20, and flocculated silt particle mass at the lower part of the mud-water flocculation separation tank 15 is discharged into the dewatering elevator 17 through a pipeline four 16.
The dehydration lifting machine 17 has dehydration and lifting functions, mud is dehydrated into mud cakes to be sent out and directly falls into a storage bin, and the storage bin is released into a transport vehicle for external transportation and disposal.
Claims (3)
1. A new tap water tail water treatment process is characterized in that: the device comprises a advection sedimentation tank (1), a channel (6), a concentration tank (10), a mud-water flocculation separation tank (15) and a dewatering lifter (17), wherein the advection sedimentation tank (1) is provided with a advection 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), a submersible sewage pump (8) is arranged at the sinking position of the channel tail of the channel (6), a channel scraper (7) is arranged below a first water outlet pipeline (5) of the mud scraping and sucking machine, the concentration tank (10) is provided with a concentration machine (11), a concentration machine scraper (12), a concentration tank water collecting tank (22) and a pipeline pump (13) which are arranged at the mud outlet of the bottom of the concentration tank, and the mud-water flocculation separation tank (15) is provided with a stirrer (21) and a filtering device (20); a mud scraping and sucking machine (3) arranged in the advection sedimentation tank (1) runs on a track (18) of the advection sedimentation tank, sediment in tail water is scraped and collected through a mud scraping and sucking machine scraper (19), and then the settled muddy water is sucked and discharged to a channel (6) through a first pipeline (5) by a lifting pump (4), and clear water clarified by the advection sedimentation tank (1) is collected and flows into a filtering process through an advection tank water collecting tank (2); the channel scraping plate (7) is driven to operate by the first pipeline (5), scrapes and pushes sludge in the channel (6) to an inlet of a submersible sewage pump (8) at the tail part of the channel (6), and the submersible sewage pump (8) is used for directly pumping tail water to an inlet of a concentration tank through the second pipeline (9); the sludge is directly pumped into a concentration tank by a submersible sewage pump (8) from a channel (6).
2. The novel tap water tail water treatment process according to claim 1, wherein: the thickener (11) adopts central transmission, scrapes and gathers silt to the pond bottom mud pit through thickener scraper blade (12), and in pumping of pipeline pump (13) promoted muddy water mud flocculation separator tank (15), the supernatant that concentrate pond (10) separated was collected through concentrate pond water catch bowl (22) and is flowed into the filtration process.
3. The novel tap water tail water treatment process according to claim 1, wherein: the mud and water are uniformly mixed with PAM flocculant by the stirrer (21) to form flocculated sediment particle groups, the supernatant is filtered and discharged by the filter device (20), and the flocculated sediment particle groups at the lower part of the mud and water flocculation separation tank (15) are discharged into the dewatering lifter (17) by the pipeline IV (16); the dewatering lifter (17) dewaters the slurry into mud cakes, and lifts the mud cakes out.
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 |
Applications Claiming Priority (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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| Publication Number | Publication Date |
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| CN113521808A CN113521808A (en) | 2021-10-22 |
| CN113521808B true 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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Families Citing this family (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 |
| 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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| KR101483683B1 (en) * | 2014-07-01 | 2015-01-16 | 강영현 | Water treatment system using rapid coagulation and sedimentation |
| KR101535076B1 (en) * | 2014-12-03 | 2015-07-09 | 한국수자원공사 | Solid-liquid separation type wastewater treatment device |
| KR20160015867A (en) * | 2014-08-01 | 2016-02-15 | 주식회사 도화엔지니어링 | A Circular sludge collector |
| CN105417660A (en) * | 2015-12-28 | 2016-03-23 | 中国电建集团贵阳勘测设计研究院有限公司 | Method and device for treating production wastewater of water works |
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101935140B (en) * | 2010-07-23 | 2012-08-29 | 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 |
| CN202762147U (en) * | 2012-09-12 | 2013-03-06 | 北京中矿艾可沃特科技有限公司 | Underground coal slime water sedimentation device |
| CN105641985A (en) * | 2016-03-17 | 2016-06-08 | 昌邑海洋水业有限公司 | Failure-free overhead type sludge lifting reflux system |
| 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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2021
- 2021-06-08 CN CN202110635906.0A patent/CN113521808B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101483683B1 (en) * | 2014-07-01 | 2015-01-16 | 강영현 | Water treatment system using rapid coagulation and sedimentation |
| KR20160015867A (en) * | 2014-08-01 | 2016-02-15 | 주식회사 도화엔지니어링 | A Circular sludge collector |
| KR101535076B1 (en) * | 2014-12-03 | 2015-07-09 | 한국수자원공사 | Solid-liquid separation type wastewater treatment device |
| CN105417660A (en) * | 2015-12-28 | 2016-03-23 | 中国电建集团贵阳勘测设计研究院有限公司 | Method and device for treating production wastewater of water works |
| 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 |
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| CN113521808A (en) | 2021-10-22 |
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