CN105923910A - Domestic sewage treatment improvement device and process - Google Patents
Domestic sewage treatment improvement device and process Download PDFInfo
- Publication number
- CN105923910A CN105923910A CN201610424232.9A CN201610424232A CN105923910A CN 105923910 A CN105923910 A CN 105923910A CN 201610424232 A CN201610424232 A CN 201610424232A CN 105923910 A CN105923910 A CN 105923910A
- Authority
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- China
- Prior art keywords
- filter
- driving wheel
- prefilter
- filter cloth
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F11/125—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using screw filters
-
- 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
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention discloses a domestic sewage treatment improvement device and process and belongs to the field of sewage treatment. The process was researched and invented for the purpose of improving treatment effect of sewage plants and reducing floor space for city sewage plants. The process includes treating sewage through a coarse screen, a multifunctional belt type pre-filtering device, a secondary bio-treatment device and a secondary settling tank, wherein the multifunctional belt type pre-filtering device takes the place of a fine screen, a grit basin and a primary settling tank in conventional sewage treatment. The device has dual functions of sand removing and dewatering of silt. The subsequent secondary bio-treatment device could be an A2/0 device, an anaerobic ammonia oxidation device, an SBR device, a bio-filter and a biological rotating disc and other bio-treatment device.
Description
Technical field
The present invention relates to a kind of strengthening urban sewage treatment process and device, simplify urban sewage treatment process stream
Journey, improves sewage treating efficiency, belongs to technical field of sewage.
Background technology
Since reform and opening-up, China's economy achieves the development advanced by leaps and bounds, and people's living standard has obtained substantially
Reach raising.But, along with life requirement is improved constantly by people, people are the most continuous to the demand of water resource
Increase.China is the country that a water resource is the deficientest according to statistics, and China's water resource of per capita only has 2300
Cubic meter, only the 1/4 of world average level.And China's water resource spatial and temporal distributions is the most uneven, develop
Difficulty is bigger.Along with the continuous quickening of modernization of the country process, this most limited water resource is made constantly to be polluted,
Causing numerous water quality to deteriorate, Water-environment Ecological System is by heavy damage.Journey was paid attention in recent years along with country
The raising of degree, China's municipal sewage treatment has obtained the development of great-leap-forward, and municipal wastewater treatment plant handling rate is constantly
Improving, but the water quality of China's urban water-body is not the most improved, even water quality has the trend continuing to degenerate.
The sewage treatment plant that additionally construction scale is huge, also makes more stepping up of this most limited town site change
?.For improving China's Water-environment Ecological System, improve wastewater treatment efficiency and reduce Sewage Plant floor space
Become the focus of current sewage treatment industry.
China runs and is typically all former water in the technological process building sewage treatment plant and sequentially passes through coarse rack, thin lattice
Grid, setting pot, primary sedimentation pond, biological treatment reactor and secondary sedimentation tank, thus complete sewage disposal,
Realize water purification.But traditional sewage disposal to there is technique the most complicated, structures are many, and floor space is big,
Energy consumption is high, many drawbacks such as treatment effeciency is low.These deficiencies do not meet the environmental protection of the energy-saving and emission-reduction advocated now
Theory.Additionally in water treatment technology, the product sand amount of preliminary sedimentation tank is relatively big, is primarily due in setting pot a large amount of silt particle
Can not remove well and enter preliminary sedimentation tank.Even if some silt particle enters grit water separator from aerated grit chamber, by
Shorter in grit water separator hydraulic detention time, well silt particle can not be removed, cause the overwhelming majority
Silt particle enter preliminary sedimentation tank, add preliminary sedimentation tank and process load, cause preliminary sedimentation tank floor space big, treatment effeciency
Low, it is impossible to reach the purpose of desanding.
The technological process of traditional wastewater treatment plant be usually former water sequentially pass through coarse rack, fine fack, setting pot,
Primary sedimentation pond, biological treatment reactor and secondary sedimentation tank, thus complete sewage disposal, it is achieved water resource
Purify.But traditional sewage disposal to there is technique the most complicated, structures are many, and floor space is big, and energy consumption is high,
Many drawbacks such as treatment effeciency is low.These deficiencies do not meet the environmental protection concept of the energy-saving and emission-reduction advocated now.Separately
Outer setting pot treatment effeciency is low, and grit water separator hydraulic detention time is short, causes a large amount of silt particle to enter primary deposition
Pond, adds preliminary sedimentation tank and processes load, causes preliminary sedimentation tank floor space big, and treatment effeciency is low, it is impossible to reach to remove
The purpose of sand, and then add the load of subsequent biological treatment, reduce biological treatment efficiency, make Sewage Plant go out
Water is difficult to even can not be up to standard.
Summary of the invention
The present invention uses Multifunctional belt prefilter as the main body of sewage disinfection treatment, and raw sewage sequentially passes through thick lattice
Grid, Multifunctional belt prefilter, two stage biological processing means, secondary sedimentation tank process, by multifunctional belt
Formula prefilter replaces fine fack, setting pot and primary sedimentation pond.
A kind of strengthening urban sewage treating device, it is characterised in that the coarse rack that includes being sequentially connected with, multi-functional
Belt prefilter, two stage biological processing means, secondary sedimentation tank, wherein include inside Multifunctional belt prefilter
The filter cloth (12) tilted, filter cloth (12) upper end use the first driving wheel (10) and the second driving wheel (9),
Lower end uses driven pulley (3) that filter cloth (12) constitutes inclination filter cloth conveyer structure, the first driving wheel (10)
With the second driving wheel (9) horizontal parallel so that between the first driving wheel (10) and the second driving wheel (9)
Filter cloth transmission become level, filter cloth (12) walk around the second driving wheel (9) afterwards also have one guide driven pulley (8),
Guide driven pulley (8) and also act as the effect supporting following transmission filter cloth simultaneously；Tilt above filter cloth conveyer belt
For filter front water chamber；The setting further below of the second driving wheel (9) will tilt below filter cloth conveyer belt with retention device
Being divided into two parts, the second driving wheel (9) rear end part below is hydroecium after filter, and after filter, hydroecium is provided with clear water
Outlet (5)；Second driving wheel (9) fore-end below is additionally provided with tubular type sand storage chamber (14), sand storage chamber (14)
Inside being provided with silt particle squeezing dehydration device (7), sand storage chamber (14) is additionally provided with silt particle outlet (6)；
Filter front water chamber is provided with water inlet.Filter front water chamber is additionally provided with overfall and exhaust outlet simultaneously.
Filter front water chamber is provided with the water spout for cleaning filter cloth simultaneously.
The aperture of filter cloth mesh is 0.3-1.0mm.
Filter cloth inclination angle is preferably 20-45 degree.
Silt particle squeezing dehydration device can use screw rod.
Water inlet for Multifunctional belt prefilter is that former water is entered filter front water chamber by water inlet, after filter-cloth filtering
Entering hydroecium after filter, the clear water after filtration is flowed out by delivery port again.The silt particle that filter-cloth filtering goes out drives to filter cloth
Clean through hairbrush at second driving wheel and enter sand storage chamber, then by collection sand parts by silt particle extruding to sand export, from
And complete desanding dehydration.The water outlet of Multifunctional belt prefilter is directly entered biological treatment reactor, removes organic
Pollutant and denitrogenation dephosphorizing, thus reach the purpose of purification of water quality.
Succeeding level-two biological treatment device can use A2/ 0 technique, anaerobic ammonia oxidation process, SBR technique, life
The combination of one or more in the science and engineering process and equipment of thing filter tank and biological rotating disk etc..
A kind of strengthening urban sewage treatment process method, uses said apparatus, sewage through coarse rack then from many merits
After the water inlet of energy belt prefilter enters the filter after filter-cloth filtering, water sequentially enters two grades of lifes from clear water output
Thing processing means, secondary sedimentation tank；The silt particle that Multifunctional belt prefilter is filtrated to get uses screw rod rotation to carry out
Extrusion dehydration.
This technological process is mainly made up of following processing unit:
1, coarse rack: bigger floating thing or suspension in main removal raw sewage.
2, Multifunctional belt prefilter: Multifunctional belt prefilter replace the fine fack in traditional wastewater handling process,
Setting pot and primary sedimentation pond, retain the silt particle in sewage by the filtration of filter cloth, and to filtering
To silt particle use screw rod rotate carry out extrusion dehydration, have desanding and dehydration dual-use function.
3, two stage biological processes: main remove the organic pollution in sewage further or/and nitrogen is or/and phosphorus, from
And reach the purpose purified water.
4, secondary sedimentation tank: realize mud-water separation, the process water being up to discharge standard discharges water factory.
Owing to Multifunctional belt prefilter has preferable desanding effect, reduce the process load of biological treatment,
Treatment effect can be improved.Technical solution of the present invention is used to be possible not only to simplify waste water processes, and permissible
Improve sewage desanding effect, alleviate subsequent biological treatment load, improve Nitrogen/Phosphorus Removal.
Accompanying drawing explanation
Fig. 1 is new urban sewage treatment process of the present invention process principle figure.
Fig. 2 is the process principle figure of the Multifunctional belt prefilter desanding device that the present invention uses.
The main composition parts of this equipment:
1 water inlet, 2 overfalls, 3 driven pulleys, hydroecium after 4 filters, 5 clear water outputs, 6 silt particles
Outlet, 7 silt particle squeezing dehydration devices, 8 guiding driven pulleys, 9 driving wheels, 10 driving wheels, 11
Exhaust outlet, 12 filter clothes, 13 filter front water chambers, 14 sand storage chamber.
Detailed description of the invention
Embodiment 1
Including the coarse rack being sequentially connected with, Multifunctional belt prefilter, two stage biological processing means, secondary precipitation
Pond, Multifunctional belt prefilter length, width and height are respectively 1.80m, 1.35m and 1.30m, always consume during normal work
Electricity is 2.25KW per hour, and aperture of filter screen is 0.3mm, and filter cloth is driven by the first driving wheel and the second driving wheel,
Filter cloth transmission drives with electric machine rotation, and motor speed is 12r/s, and the nozzle water yield that need to clean filter cloth is 5m3/ h,
This equipment has desanding and sand water dual-use function, is possible not only to simplify waste water processes, and can improve
Sewage desanding effect, alleviates subsequent biological treatment load, improves Nitrogen/Phosphorus Removal.Process the water yield per hour big
General 40m3, filter cloth inclination angle is preferably 20-45 degree.
Prefilter influent quality: SS is 3360mg/L；VSS is 3120mg/L；COD is 230mg/L.
Effluent quality: SS is 1600mg/L；VSS is 1170mg/L；COD is 200mg/L.Prefilter processes
Silt particle moisture content is 67.7%, and content of organics is 41.5%.Reach reasonable desanding and dehydrating effect,
Removal to organic pollution also has certain effect.
Two stage biological processing means can use A2/0 device, anaerobic ammonium oxidation apparatus, SBR device, biological filter
Pool device and biological rotating disk device etc..A2/0 device mainly removes the pollutants such as the organic matter in sewage, nitrogen and phosphorus；
Anaerobic ammonium oxidation apparatus mainly removes the pollutants such as the nitrogen in sewage；SBR device, bacteria filter device and biology
Rotating-table apparatus mainly removes the pollutants such as the organic matter in sewage, nitrogen.
Claims (8)
1. a strengthening urban sewage treating device, it is characterised in that the coarse rack that includes being sequentially connected with, Multifunctional belt prefilter,
Two stage biological processing means, secondary sedimentation tank, wherein include the filter cloth (12) tilted, filter inside Multifunctional belt prefilter
Cloth (12) upper end uses the first driving wheel (10) and the second driving wheel (9), lower end to use driven pulley (3) by filter cloth (12)
Constitute and tilt filter cloth conveyer structure, the first driving wheel (10) and the second driving wheel (9) horizontal parallel so that first is main
Filter cloth transmission between driving wheel (10) and the second driving wheel (9) becomes level, filter cloth (12) to walk around the second driving wheel (9)
Rear also have one to guide driven pulley (8), guides driven pulley (8) and also acts as the effect transmitting filter cloth that support is following simultaneously；
Tilt above filter cloth conveyer belt for filter front water chamber；The setting further below of the second driving wheel (9) will tilt filter cloth with retention device
Being divided into two parts below conveyer belt, the second driving wheel (9) rear end part below is hydroecium after filter, and after filter, hydroecium is provided with clearly
Water out (5)；Second driving wheel (9) fore-end below is additionally provided with tubular type sand storage chamber (14), in sand storage chamber (14)
Being provided with silt particle squeezing dehydration device (7), sand storage chamber (14) is additionally provided with silt particle outlet (6)；Filter front water chamber is provided with water inlet.
2. according to a kind of strengthening urban sewage treating device described in claim 1, it is characterised in that Multifunctional belt pre-flock simultaneously
Machine filter front water chamber is additionally provided with overfall and exhaust outlet.
3. according to a kind of strengthening urban sewage treating device described in claim 1, it is characterised in that Multifunctional belt prefilter simultaneously
Filter front water chamber is provided with the water spout for cleaning filter cloth.
4. according to a kind of strengthening urban sewage treating device described in claim 1, it is characterised in that Multifunctional belt prefilter simultaneously
The aperture of filter cloth mesh is 0.3-1.0mm.
5. according to a kind of strengthening urban sewage treating device described in claim 1, it is characterised in that Multifunctional belt prefilter simultaneously
Filter cloth inclination angle is preferably 20-45 degree.
6. according to a kind of strengthening urban sewage treating device described in claim 1, it is characterised in that Multifunctional belt prefilter simultaneously
Silt particle squeezing dehydration device can use screw rod.
7. according to a kind of strengthening urban sewage treating device described in claim 1, it is characterised in that two stage biological processing means uses
The connection of one or more in A2/0 device, anaerobic ammonium oxidation apparatus, SBR device, bacteria filter device and biological rotating disk device
With.
8. the technique strengthening municipal sewage treatment, its spy is just, uses the strengthening city belonging to any one of claim 1-7 dirty
Water treatment facilities, sewage through coarse rack then after the water inlet of Multifunctional belt prefilter enters the filter after filter-cloth filtering water from
Clear water output sequentially enters two stage biological processing means, secondary sedimentation tank；The silt particle that Multifunctional belt prefilter is filtrated to get uses
Screw rod rotates and carries out extrusion dehydration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610424232.9A CN105923910A (en) | 2016-06-15 | 2016-06-15 | Domestic sewage treatment improvement device and process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610424232.9A CN105923910A (en) | 2016-06-15 | 2016-06-15 | Domestic sewage treatment improvement device and process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105923910A true CN105923910A (en) | 2016-09-07 |
Family
ID=56830934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610424232.9A Pending CN105923910A (en) | 2016-06-15 | 2016-06-15 | Domestic sewage treatment improvement device and process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105923910A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101134150A (en) * | 2006-08-29 | 2008-03-05 | 黄伟飞 | Screening and sieving apparatus for water treatment |
| CN101659491A (en) * | 2008-08-27 | 2010-03-03 | 王强 | System and method for treating urban sewage |
| CN101723537A (en) * | 2008-10-21 | 2010-06-09 | 姚日鹏 | Novel process for urban sewage reutilization and treatment |
| CN105477919A (en) * | 2015-12-28 | 2016-04-13 | 安徽华骐环保科技股份有限公司 | Sewage pretreatment microfiltration equipment and method |
-
2016
- 2016-06-15 CN CN201610424232.9A patent/CN105923910A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101134150A (en) * | 2006-08-29 | 2008-03-05 | 黄伟飞 | Screening and sieving apparatus for water treatment |
| CN101659491A (en) * | 2008-08-27 | 2010-03-03 | 王强 | System and method for treating urban sewage |
| CN101723537A (en) * | 2008-10-21 | 2010-06-09 | 姚日鹏 | Novel process for urban sewage reutilization and treatment |
| CN105477919A (en) * | 2015-12-28 | 2016-04-13 | 安徽华骐环保科技股份有限公司 | Sewage pretreatment microfiltration equipment and method |
Non-Patent Citations (1)
| Title |
|---|
| 北京博奇电力科技有限公司: "《湿法脱硫系统安全运行与节能降耗》", 26 February 2010, 中国电力出版社 * |
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Application publication date: 20160907 |