CN101941781A - Filtering system of suspended solids in sewage - Google Patents
Filtering system of suspended solids in sewage Download PDFInfo
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- CN101941781A CN101941781A CN2010102917680A CN201010291768A CN101941781A CN 101941781 A CN101941781 A CN 101941781A CN 2010102917680 A CN2010102917680 A CN 2010102917680A CN 201010291768 A CN201010291768 A CN 201010291768A CN 101941781 A CN101941781 A CN 101941781A
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- aeration tank
- suspended thing
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Abstract
The invention discloses a filtering system of suspended solids in sewage, which comprises an aeration tank containing the sewage to be treated, a filtering device arranged at a water outlet of the aeration tank, an aeration device arranged at the bottom part of the aeration tank, and a sludge discharge device arranged below the filtering device. Compared with the traditional filtering process with a secondary sedimentation tank, the adoption of the filtering system of the suspended solids in the sewage can basically replace the functions of the secondary sedimentation tank by arranging the microporous steel wire mesh rotating disc filtering device at the water outlet in the aeration tank, and a sedimentation tank does not need to be additionally constructed, thereby saving the occupied area. The filtering system also has the advantages of good water quality of outlet water, stable operation, a small number of auxiliary equipment, low equipment investment, automatic operation, simple and convenient operation and maintenance, low operation cost, and short design cycle and construction period.
Description
Technical field
The present invention relates to sewage disposal device and technical field, particularly relate to a kind of sewage by suspended thing filtering system.
Background technology
In the sewage disposal, settling tank can be divided into primary sedimentation pond and secondary sedimentation basins by the difference of processing set-up.Wherein secondary sedimentation basins is located at the back of aeration tank, is used for precipitation and removes active sludge or humus sludge, and it is the important component part of biological treatment system, and the SS of second pond (suspended solid) clearance is 60%～90%.
Settling tank is the most important link of flocs unit and water sepn in the water technology, and the effect of settling tank is the throw out of removing in the water, water outlet is reached treat the water quality requirement of drainage, and the quality of sedimentation effect directly has influence on follow-up filter effect and effluent quality.The more settling tank of domestic application has horizontal sedimentation tank, and plusator, inclined tube (plate) settling tank are released a kind of novel little spacing inclined-plate clarifying basin in recent years again, and result of use is good.
Horizontal sedimentation tank is to depositing technology traditional in the water treatment, is widely used, and is characterized in that capacity of resisting impact load is strong, stable and reliable operation, and treatment effect is good, simple structure, operational management is convenient, is beneficial to and taps the potential and upgrade technologically.Shortcoming is that floor space is bigger.
Plusator is a kind of settling pond of the body refuse type that suspends, utilize the pulse decreasing water distribution method, automatically regulate the distribution of suspended layer body refuse concentration, water inlet is washed by water and is discharged water by some cycles, the suspended substance body refuse is alternately expanded and shrink, increase the collision touch opportunity of former particle water and body refuse, thereby improve clarifying effect, adapt to and handle high turbidity and turbidity variation former water greatly.
Little spacing inclined-plate clarifying basin is the efficient pond type of releasing in recent years, and the swash plate spacing is at 15mm, the deposition efficiency height, and floor space is few.Because the pond volume is less, sedimentation time is shorter, and is also high to the flocculating effect requirement of reaction tank, same because the swash plate spacing is less, also higher to requirements in water quality, when algae or foreign material are arranged in the water, easily stops up.Operational management comparatively bothers, and the pond body structure is than the horizontal sedimentation tank complexity, and swash plate is second third copolymerization, and is easily aging, needs to change the expense height.Because this pond type deposition efficiency height, thereby be used for modernizing and expanding the existing factory more and tap the latent power or the water factory that land area is comparatively nervous and the water factory of cold district, be suitable for indoor construction.
Above-mentioned settling tank common feature is all need set up settling tank separately, invests greatlyyer, and running cost is higher.
Summary of the invention
(1) technical problem that will solve
The technical problem to be solved in the present invention is to simplify the structure of sewage by suspended thing filtering system, raising filter effect, minimizing running cost.
(2) technical scheme
For solving the problems of the technologies described above, a kind of sewage by suspended thing filtering system is provided, comprising: the aeration tank that holds treatment sewage; Filtration unit is arranged at the water outlet of described aeration tank; Aerating apparatus is arranged at the bottom of described aeration tank; Mud discharging device is arranged at the below of described filtration unit.
Preferably, the described filtration unit microporous filter media that comprises rotating disk and be covered in described disc surfaces.
Preferably, described rotating disk cross section is circular, and diameter is 500-4000mm.
Preferably, described rotating disk cross section is a regular hexagon, and the length of side is 500-4000mm.
Preferably, described microporous filter media is woven wire, braiding or non-braiding filtration medium.
Preferably, described rotating disk is many groups, is fixed in the rotating shaft according to a determining deviation, and described rotating shaft is connected with motor and by described electric motor driving.
Preferably, described mud discharging device is made up of pump orifice, the shore pipe that is connected with pump orifice and the vacuum pump that is connected with described pump orifice, and described pump orifice is pressed close to described microporous filter media setting.
Preferably, the width of described pump orifice equals the radius of described rotating disk.
(3) beneficial effect
Traditional relatively second pond filtration process adopts sewage by suspended thing filtering system of the present invention, and water outlet place is provided with micropore woven wire rotating disk filtration unit in the aeration tank, has replaced the function of second pond substantially, does not need to build in addition settling tank, has therefore saved floor space.This invents all the other advantages: effluent quality is good, stable; Auxiliary facility is few, and facility investment is low; The operation automatization, running maintenance is simple and convenient; Working cost is low; Design cycle and short construction period.
Description of drawings
Fig. 1 is the structural representation of the sewage by suspended thing filtering system of the embodiment of the invention;
Fig. 2 a and Fig. 2 b are respectively the filtration unit of sewage by suspended thing filtering system of the embodiment of the invention and the front view and the side-view of mud discharging device.
Wherein, wherein, 1: treatment sewage; 2: the aeration tank; 3: aerating apparatus; 4: the sewage after the processing; 5: filtration unit; 6: mud discharging device; 7: sludge pump; 8: drive-motor; 9: rotating disk; 10: filtration medium; 11: pump orifice.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples are used to illustrate the present invention, but are not used for limiting the scope of the invention.
As shown in Figure 1, the sewage by suspended thing filtering system that the present invention proposes comprises: aeration tank 2, filtration unit 5, aerating apparatus 3 and mud discharging device 6.Wherein, aeration tank 2 is used to hold treatment sewage; Filtration unit 5 is arranged at the water outlet of described aeration tank 2, is used for filtering the suspended substance of treatment sewage; Aerating apparatus 3 is arranged at the bottom of described aeration tank 2, is used for described treatment sewage is carried out aeration; Mud discharging device 6 is arranged at the below of described filtration unit 5, is used for spoil disposal after the sewage water filtration.
Shown in Fig. 2 a and Fig. 2 b, the microporous filter media 10 that described filtration unit 5 comprises rotating disk 9 and is covered in described disc surfaces.Preferably, described microporous filter media 10 is selected woven wire for use, and the mesh diameter of woven wire is 38-50mm.The cross section of described rotating disk 9 can be circle or regular hexagon, circular diameter range is 500-4000mm, orthohexagonal side size range is 500-4000mm, the thickness range of described rotating disk 9 is 30-50mm, rotating disk 9 can be set to some groups, be arranged on the hollow rotating shaft according to a determining deviation, the function of each rotating disk is identical, and the quantity of rotating disk is adjusted according to the sewage water filtration amount.Select 3 groups of rotating disks among this embodiment.Rotating shaft can be connected with motor 8 and by motor 8 driven rotary; Pump orifice 11 is connected with shore pipe and vacuum pump 7 near the surface of microporous filter media 10, and preferably, the width of pump orifice 11 equals the radius of rotating disk 9.
The working process of described system is as follows: after treatment sewage 1 enters aeration tank 2, the suspended substance that biochemical reaction produces is with near the micropore woven wire rotating disk that is provided with the flow direction outlet, by the clarification that becomes of micropore woven wire filtered sewage, the SS clearance can reach 80～90%, and water outlet SS is less than 50mg/L.
During filtration, sewage enters into rotating disk 9 inside through microporous filter media 10, flow out by hollow rotating shaft, suspended substance is trapped within the surface of microporous filter media 10, because aeration effect, feasible suspended substance attached to the woven wire surface constantly comes off, and avoids blocking microporous woven wire, makes filtration to carry out continuously.The woven wire that Special Circumstances cause stops up the dirt settling that can adopt on the back flushing removal woven wire.When suspended substance seriously stops up microporous filter media 10 on the rotating disk 9, starter motor 8, drive rotating shaft and rotating disk 9 rotations, start vacuum pump 7 simultaneously, produce negative pressure in the pump orifice 11, clear water is inhaled in the pump orifice 11 by microporous filter media 10 in the rotating disk 9, and the suspended substance that will be blocked on the microporous filter media 10 is brought into simultaneously, discharges by shore pipe with clear water stream.Rotating disk 9 is a moving week of revolution under rotating shaft drives, and the suspended substance on the whole microporous filter media 10 is cleaned once.Suspended substance is discharged with excess sludge through shore pipe.
System of the present invention has following advantage:
1, saves floor space.Sewage by suspended thing filtering system of the present invention, water outlet place is provided with micropore woven wire rotating disk filtration unit in the aeration tank, has replaced the function of second pond substantially, does not need to build settling tank in addition, has saved floor space.Therefore, take up an area of under the very nervous situation, adopt sewage by suspended thing filtering system of the present invention to become very feasible, for this newly-built Sewage Plant in developed area for a lot of ans inch of land is an inch of gold, also have superiority very much for Sewage Plant.
2, effluent quality is good, stable.The micropore woven wire rotating disk that the present invention uses, can be when aerating apparatus carries out aeration suspended substance in the filtered water, make the suspended substance that adheres on the filtering net constantly come off and discharge with excess sludge, guarantee that filtering net is not blocked, make good filtration effect, effluent quality is good, and is stable.
3, auxiliary construction and equipment are few, invest low.Second pond need be provided with structures usually separately and scrape the mud soil discharging facility accordingly, this system does not need to be provided with separately structures, also do not need to scrape the mud soil discharging facility, sewage obtains clarification by micropore woven wire rotating disk, and mud flows out by original excess sludge sludge drainage system.
4, operation automatization, running maintenance is simple and convenient.Because system mechanics equipment is less, woven wire is easy to change, so the maintenance amount of system is little.Even cause woven wire to stop up for some reason, also can change woven wire very easily.And for second pond, the operation of plurality of devices and management maintenance more complicated.
5, working cost is low.This system need not be provided with second pond, therefore saves the scraping and sucking machine power consumption; System management is simple, and labour cost is far below traditional second pond.In addition, the head loss that micropore woven wire rotating disk filters the sewage by suspended thing is generally 0.2m-0.5m, and the head loss of second pond is generally 1-2m even more.Head loss poor also will be presented as the poor of working cost, can select the less water pump of lift for use, so therefore running cost reduce.
6, design cycle and short construction period.This system need not to purchase the second pond corresponding apparatus, only needs micropore woven wire rotating disk is set in former aeration tank, can reach the filtration purpose.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the technology of the present invention principle; can also make some improvement and modification, these improve and modification also should be considered as protection scope of the present invention.
Claims (8)
1. a sewage by suspended thing filtering system is characterized in that, comprising: the aeration tank that holds treatment sewage; Filtration unit is arranged at the water outlet of described aeration tank; Aerating apparatus is arranged at the bottom of described aeration tank; Mud discharging device is arranged at the below of described filtration unit.
2. sewage by suspended thing filtering system as claimed in claim 1 is characterized in that the microporous filter media that described filtration unit comprises rotating disk and is covered in described disc surfaces.
3. sewage by suspended thing filtering system as claimed in claim 2 is characterized in that, the cross section of described rotating disk is circular, and diameter is 500-4000mm.
4. sewage by suspended thing filtering system as claimed in claim 2 is characterized in that the cross section of described rotating disk is a regular hexagon, and the length of side is 500-4000mm.
5. sewage by suspended thing filtering system as claimed in claim 2 is characterized in that, described microporous filter media is woven wire, braiding or non-braiding filtration medium.
6. as each described sewage by suspended thing filtering system of claim 2-5, it is characterized in that described rotating disk is many groups, be fixed in the rotating shaft that described rotating shaft is connected with motor and by described electric motor driving according to a determining deviation.
7. sewage by suspended thing filtering system as claimed in claim 2 is characterized in that, described mud discharging device is made up of pump orifice, the shore pipe that is connected with pump orifice and the vacuum pump that is connected with pump orifice, and described pump orifice is pressed close to described microporous filter media setting.
8. sewage by suspended thing filtering system as claimed in claim 7 is characterized in that the width of described pump orifice equals the radius of described rotating disk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102917680A CN101941781A (en) | 2010-09-26 | 2010-09-26 | Filtering system of suspended solids in sewage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102917680A CN101941781A (en) | 2010-09-26 | 2010-09-26 | Filtering system of suspended solids in sewage |
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| CN101941781A true CN101941781A (en) | 2011-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010102917680A Pending CN101941781A (en) | 2010-09-26 | 2010-09-26 | Filtering system of suspended solids in sewage |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103086573A (en) * | 2013-01-28 | 2013-05-08 | 应清界 | Method for treating municipal sewage by using separate FBR (facultative biofilm reactor) |
| CN104710086A (en) * | 2015-04-07 | 2015-06-17 | 鲁东大学 | Sewage treatment system |
| CN111790203A (en) * | 2020-07-22 | 2020-10-20 | 郭萌萌 | Based on carousel filter for sewage treatment |
| CN112979069A (en) * | 2021-02-23 | 2021-06-18 | 广西盛唯科技服务有限公司 | Multi-level efficient sewage treatment aeration equipment |
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| CN1772354A (en) * | 2005-09-23 | 2006-05-17 | 浙江大学 | Turntable type membrane separator |
| CN201139999Y (en) * | 2007-12-20 | 2008-10-29 | 安阳锦华中水处理设备有限公司 | Filtering dish and filter cloth turntable filter |
| CN201842695U (en) * | 2010-09-26 | 2011-05-25 | 浦华环保有限公司 | Wastewater suspended substance filter system |
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2010
- 2010-09-26 CN CN2010102917680A patent/CN101941781A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1772354A (en) * | 2005-09-23 | 2006-05-17 | 浙江大学 | Turntable type membrane separator |
| CN201139999Y (en) * | 2007-12-20 | 2008-10-29 | 安阳锦华中水处理设备有限公司 | Filtering dish and filter cloth turntable filter |
| CN201842695U (en) * | 2010-09-26 | 2011-05-25 | 浦华环保有限公司 | Wastewater suspended substance filter system |
Non-Patent Citations (2)
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| 任凌波等: "《实用精细化工过程与装备》", 31 March 2007 * |
| 朱灵峰: "《水与废水处理新技术》", 31 August 2007 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103086573A (en) * | 2013-01-28 | 2013-05-08 | 应清界 | Method for treating municipal sewage by using separate FBR (facultative biofilm reactor) |
| CN104710086A (en) * | 2015-04-07 | 2015-06-17 | 鲁东大学 | Sewage treatment system |
| CN111790203A (en) * | 2020-07-22 | 2020-10-20 | 郭萌萌 | Based on carousel filter for sewage treatment |
| CN112979069A (en) * | 2021-02-23 | 2021-06-18 | 广西盛唯科技服务有限公司 | Multi-level efficient sewage treatment aeration equipment |
| CN112979069B (en) * | 2021-02-23 | 2022-08-30 | 中铁建发展集团有限公司 | Multi-level efficient sewage treatment aeration equipment |
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Application publication date: 20110112 |