CN104276739A - Apparatus for reinforcing sludge gravity thickening, and method thereof - Google Patents
Apparatus for reinforcing sludge gravity thickening, and method thereof Download PDFInfo
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- CN104276739A CN104276739A CN201310277470.8A CN201310277470A CN104276739A CN 104276739 A CN104276739 A CN 104276739A CN 201310277470 A CN201310277470 A CN 201310277470A CN 104276739 A CN104276739 A CN 104276739A
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- type plate
- moving type
- plate case
- mud
- gravity concentration
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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
Abstract
The invention belongs to the technical field of environment, and relates to an apparatus for reinforcing sludge gravity thickening, and a method thereof. The apparatus for reinforcing sludge gravity thickening includes a sludge gravity thickening pool (1), a Venturi pump (2) and a movable plate box (3), wherein the movable plate box (3) is arranged in the sludge gravity thickening pool (1), and the Venturi pump (2) is arranged outside the sludge gravity thickening pool (1). The method using the apparatus to realize the sludge thickening treatment improves the efficiency of the sludge gravity thickening pool, greatly shortens the retention time of the sludge gravity thickening, reduces the size of the pool, saves a large power vacuum pump and a large size vacuum tank needed by routine negative pressure filtering methods, takes low construction and running cost, can be easily and automatically controlled, and has good economic and social benefits in municipal sewage treatment.
Description
Technical field
The invention belongs to field of environmental technology, relate to a kind of implement device and method of reinforcement sludge gravity concentration.
Background technology
City domestic sewage treatment plant adopts active sludge treatment process mostly, and this technique needs to get rid of a large amount of excess sludges every day.Excess sludge water ratio reaches 99.2% ~ 99.6%, has to pass through concentrated, significantly reduces sludge volume, can facilitate the processed that mud is follow-up.Gravity concentration method is the most frequently used sludge condensation treatment process, and its operating load is generally 50 ~ 90kg/m
2d, sludge retention time is generally 12 ~ 24 hours.The technical process of gravity concentration method, equipment structure and operational management are simple, but need very large pond to hold and take up an area, and sanitary condition is poor.Because gravity concentration needs the longer residence time, concentration basin bottom may produce anoxic or anaerobic environment, makes mud generation anaerobic digestion, causes Mud up-floating, affect sludge condensation effect; When situation is serious, mud also can make the phosphorus absorbed again be discharged in sewage in anaerobic environment, when supernatant liquor sewage backflow is to biological tank, the dephosphorization efficiency by using of active sludge treatment process is reduced.Therefore need the residence time of reducing sludge condensation process as much as possible, reduce the release of phosphorus.Although had the mechanical thickening technology such as belt type sludge thickner and centrifugal concentrator to replace gravity concentration, but the investment of mechanical thickening technical costs is large, maintenance of equipment expense is high, operating process is complicated, be again also need to add medicament conditioning, increase overall operation cost, generally speaking, mechanical thickening Technical Economy is poor, does not obtain large-scale application.
China document patent " flat plate film sludge concentration and treatment process " (publication number CN101054230) adopts dull and stereotyped embrane method to make sludge condensation, namely the moisture in excess sludge is discharged in the mode of film water outlet under the Ultrafiltration of flat sheet membrane, and its effluent quality can reach Treated sewage reusing standard.Very easily there is film blocking in the method, process operation power consumption is large, and membrane module replacement charge is high.China's document patent " multi-stage type flat plate film sludge concentration technology method " (publication number CN102643004A), this invention concentration method adopts multiple reactor, arrange according to liquid level difference plug-flow operation scheme, ultrafiltration (micro-filtration) film is used to be trapped in reactor by Large stone mud flco, and clean water is pumped out reactor, reach the object that mud is separated with water, under different sludge concentration, flat sheet membrane adopts different operating fluxs, can prevent the too fast generation of fouling membrane; Meanwhile, adopt aerating apparatus to wash away flat sheet membrane surface, controlling diaphragm pollutes.The method cost of investment is high, and infrastructure project amount is large, and operational process needs to consume more power, and the mud viscosity in this external sludge thickener is high, and adopt aerating apparatus to wash away film surface, its shearing force DeGrain, the efficiency of sludge concentration device is very low.
Traditional negative pressure or vacuum filtration process utilize vacuum pump a container vacuum pumping, becomes vacuum tank.Vacuum tank has the function of the liquid that voltage stabilizing and temporary reservoir filter out, and when pot liquid arrives setting height, open bottom valve expel liquid, vacuum pump plays the effect maintaining vacuum in tank.Which equipment is complicated, and floor space is large, and investment cost is high, and current consumption is large, causes working cost high.Venturi pump utilizes the vacuum device of Venturi tube effect, and its principle utilizes current at a high speed by the trunnion position of Venturi tube, and static energy is converted into kinetic energy, produces vacuum in local.The vacuum tightness that venturi pump produces is high, the inner movement-less part of device, not fragile, is used widely in the industrial production, but the precedent also do not applied in sludge treatment.
Summary of the invention
The object of the invention is to the defect for overcoming above-mentioned prior art and a kind of device and treatment process thereof of reinforcement sludge gravity concentration are provided.
For achieving the above object, the present invention is by the following technical solutions:
A kind of reinforcement sludge gravity concentration device, comprise mud gravity concentration tank, venturi pump and moving type plate case, wherein, described moving type plate case is placed in mud gravity concentration tank, and venturi pump is placed in outside mud gravity concentration tank.
The wooden partition of described moving type plate case surrounding offers some perforation, and the outer wall of moving type plate case is enclosed with filter cloth.
Described venturi pump comprises a Venturi tube, a cyclic water tank and an impeller pump; Venturi pump is used for carrying out negative pressure-pumping to moving type plate case.
The moving type plate case described in moving type plate case that described reinforcement sludge gravity concentration device includes more than 2 or 2 is equidistantly fixed on head slab, head slab is arranged on machinery mount, and head slab can move forward and backward up and down with machinery mount.
Described moving type plate case is rectangular parallelepiped, and it is long: high: wide ratio is (5 ~ 10): 5:1.
The inside of described moving type plate case is provided with equally distributed support short slab, prevents wooden partition flat by suction under suction function, supports short slab simultaneously and also can not hinder current collecting in plate case.
The bottom end of described moving type plate case is provided with filtrate discharge mouth, filtrate discharge mouth is connected with filtrate discharge arm, filtrate discharge arm is upwards fixed on head slab, the filtrate discharge arm of each moving type plate case is aggregated into a filtrate discharge house steward, filtrate discharge house steward is connected to the water-in of venturi pump, filtrate discharge house steward has fluid pipeline valve.
The other end of the bottom of described moving type plate case is provided with compressed air inlet port, to be exported be connected by pressurized air air intake branch and pressurized air inlet manifold with air compressor machine.
Described pressurized air inlet manifold is fixed on the flat board of plate box top, is divided into several air intake branch by a pressurized air inlet manifold, and air intake branch is connected to the inlet mouth place of each moving type plate case, pressurized air inlet manifold has gas pipeline valve.
Utilize a method for said apparatus reinforcement sludge gravity concentration, comprise the following steps:
(1) moving type plate case is placed in the bottom of mud gravity concentration tank, opens the fluid pipeline valve of filtrate discharge house steward, the gas pipeline valve of closes compression air inlet house steward, inject mud;
(2) when mud floods moving type plate box top, venturi pump is opened;
(3) the fluid pipeline valve of filtrate discharge house steward is closed, open the gas pipeline valve of pressurized air inlet manifold, utilize the mud cake outside pressurized air reverse stripping stripping filter cloth, the mud cake stripped down from filter cloth declines because of action of gravity, the mud submergence moving type plate case again that concentration is lower;
(4) after stripping terminates, the fluid pipeline valve of closes compression air inlet house steward, open the fluid pipeline valve of filtrate discharge house steward, " negative pressure-pumping-reverse stripping " process of repeating step (1)-(3), or control machinery mount, moving type plate case is moved to and does not carry out the concentrated region of mud strengthening, start the new reinforcement sludge gravity concentration cycle;
When utilizing venturi pump and moving type plate case reinforcement sludge gravity concentration, excess sludge can inject gravity concentration tank continuously, mud after concentrated can be discharged continuously at the bottom of concentration basin pond, also intermittent operation can be adopted, namely excess sludge is disposable fills gravity concentration tank, then start to strengthen gravity concentration process, at the end of concentration process, the mud after concentrated is discharged.
In described step (1), the water ratio of the mud injected is more than or equal to 99%, comprise the mixed mud of sewage treatment plants second pond excess sludge and excess sludge and preliminary sedimentation tank, after the method process, the sludge concentration after concentrated can reach 92 ~ 97%.
One time negative pressure-pumping can not be extracted the moisture around moving type plate case out completely, and therefore after completing once reverse stripping, moving type plate case can continue to start negative pressure-pumping repeating step (1)-(3) in situ.To complete a negative pressure-pumping in certain when moving type plate case and once after reverse stripping, also can move to and not strengthen concentrated region, restart negative pressure-pumping and reverse stripping process.
In described step (2), the vacuum tightness of the water inlet of venturi pump is-(0.05 ~ 0.10) MPa; The time of a venturi pump negative pressure-pumping is 60 ~ 600s.Vacuum tightness is high, then the time of a negative pressure-pumping is just short, and determine that mark that negative pressure-pumping can terminate is that flow of filtrate in filtrate discharge house steward have dropped 25%, filtrate does not have continuous flow.
In described step (3), when venturi pump opens certain hour (60-600s) or the venturi pump water outlet water yield have dropped 25%, close filtrate discharge house steward valve.
In described step (3), the output pressure of air compressor is 0.1-0.8MPa, and reverse stripping time is 10-60s; The output pressure of air compressor is larger, and the time of reverse stripping is shorter, but the output pressure of air compressor is large, and can increase equipment cost and potential safety hazard, output pressure during actual motion and reverse stripping time can be determined by experiment.
The opening time of venturi pump, the i.e. time of a negative pressure-pumping, need to determine according to parameters such as particulate matter in mud and suspension content, the size of moving type plate case, the negative pressure of venturi pump, macroscopic appearance be exactly in filtrate discharge house steward flow of filtrate obviously decline, the outer wall filter cloth that moving type plate case is described have accumulated closely knit mud cake, increase filtrate and enter resistance in plate case, at this time just need to carry out reverse stripping mud cake.
When the output pressure of air compressor is larger, reverse stripping time can shorten, but air compressor output pressure is large, and will increase equipment cost and potential safety hazard, therefore output pressure is within the scope of 0.1 ~ 0.8MPa.
The present invention has following beneficial effect:
The present invention is applicable to the concentration to the residual active sludge produced in sewage disposal or itself and the mixed mud of Sludge from primary sedimentation tank.Treatment process of the present invention utilizes venturi pump and moving type plate case, improve the efficiency of mud gravity concentration tank, reduce the volume of pond body, save powerful vacuum pump and the large volume vacuum tank that conventional negative pressure filtration method needs, floor space is little, and working cost is low, easily be automated control, in municipal sewage plant, utilize treatment process of the present invention, there is good economic benefit and social benefit.
Accompanying drawing explanation
Fig. 1 is reinforcement sludge gravity concentration device schematic diagram in the embodiment of the present invention, and this device comprises 2 moving type plate casees.
Fig. 2 is sewage treatment process figure in the embodiment of the present invention.
Fig. 3 is moving type plate box structure schematic diagram in the embodiment of the present invention.
Accompanying drawing marks:
1 gravity concentration tank, 2 venturi pumps,
3 moving type plate casees, 4 wooden partitions,
5 perforation, 6 filter clothes,
7 filtrate discharge mouths, 8 filtrate discharge arms,
9 filtrate discharge house stewards, the water-in of 10 venturi pumps,
11 compressed air inlet ports, 12 pressurized air air intake branches,
13 pressurized air inlet manifolds, 14 air compressor machine outlets,
15 Venturi tubes, 16 cyclic water tanks,
17 impeller pumps, 18 head slabs,
19 machinery mounts, 20 support short slab,
21 fluid pipeline valves, 22 gas pipeline valves.
Embodiment
Below in conjunction with accompanying drawing illustrated embodiment, the present invention is further illustrated.
As shown in Figure 1, a kind of reinforcement sludge gravity concentration device, comprises mud gravity concentration tank 1 venturi pump 2 and moving type plate case 3(Fig. 3), wherein, moving type plate case 3 is placed in mud gravity concentration tank 1, and venturi pump 2 is placed in outside mud gravity concentration tank 1.
The wooden partition 4 of moving type plate case 3 surrounding offers some perforation 5, and the outer wall of moving type plate case 3 is enclosed with filter cloth 6.
Venturi pump 2 comprises a Venturi tube 15, cyclic water tank 16 and an impeller pump 17; Venturi pump 2 is for carrying out negative pressure-pumping to moving type plate case 3.
Reinforcement sludge gravity concentration device includes the moving type plate case 3 of more than 2 or 2.
Moving type plate case 3 is rectangular parallelepiped, and it is long: high: wide ratio is (5 ~ 10): 5:1.
Moving type plate case 3 is equidistantly fixed on head slab 18, and head slab 18 is arranged on machinery mount 19, and head slab 18 can move forward and backward up and down with machinery mount 19.
The inside of moving type plate case 3 is provided with equally distributed support short slab 20, prevents wooden partition 4 flat by suction under suction function, supports short slab 20 simultaneously and also can not hinder current collecting in plate case.
One end of moving type plate case 3 is provided with filtrate discharge mouth 7, filtrate discharge mouth 7 is connected with filtrate discharge arm 8, filtrate discharge arm 8 is upwards fixed on head slab 18, the filtrate discharge arm 8 of each moving type plate case 3 is aggregated into a filtrate discharge house steward 9, filtrate discharge house steward 9 is connected to the water-in 10 of venturi pump 3, and filtrate discharge house steward 9 is provided with fluid pipeline valve 21.
The other end bottom moving type plate case 3 is provided with compressed air inlet port 11, exports 14 be connected by pressurized air air intake branch 12 with pressurized air inlet manifold 13 with air compressor machine.
Pressurized air inlet manifold 13 is fixed on plate box top flat board 18, several air intake branch 12 is divided into by a pressurized air inlet manifold 13, air intake branch 12 is connected to inlet mouth 11 place of each moving type plate case 3, pressurized air inlet manifold 13 has gas pipeline valve 22.
Embodiment 1
Adopt the reinforcement sludge gravity concentration device shown in Fig. 1, reinforcement sludge gravity concentration device in the present embodiment has 2 moving type plate casees as one group, the long 25cm of each plate case, wide 25cm, thick 5cm(is long: high: wide ratio is 5:5:1), material selection synthetic glass, wooden partition offers the aperture of diameter 1cm, hole between centers 2.5cm.The two bottom sides of each plate case offers filtrate discharge mouth and pressurized air inflation inlet.Plate box outer wall polypropylene filament macrofiber filter cloth (model 750B) tightly wraps up; Gravity concentration tank is cuboid container (50L).Pending excess sludge is from the excess sludge of city domestic sewage treatment plant second pond discharge, and its water ratio is 99.2%.
Utilize a method for said apparatus reinforcement sludge gravity concentration, comprise the following steps (as shown in Figure 2):
(1) moving type plate case is placed in the bottom of mud gravity concentration tank, open the fluid pipeline valve 21 of filtrate discharge house steward 9, the gas pipeline valve 22 of closes compression air inlet house steward 13, the excess sludge getting the discharge of sewage treatment plants second pond slowly injects gravity concentration tank, and the water ratio entering the excess sludge of pond body is 99.2%;
(2) when mud floods moving type plate case, venturi pump negative pressure-pumping is opened; The pressure of negative pressure-pumping is-0.09MPa, and in negative pressure-pumping process, moving type plate case is immersed in mud all the time;
(3) after venturi pump suction 2min50s, close filtrate discharge house steward valve 9, open the gas pipeline valve 22 of pressurized air inlet manifold 13, carry out the reverse stripping mud cake of first compression air, stripping time is 10s, the pressure of the reverse stripping of pressurized air is 0.4Ma, after stripping terminates, moving type plate case is promoted once, the gas pipeline valve 22 of closes compression air inlet house steward 13, open the fluid pipeline valve 21 of filtrate discharge house steward 9, restart the moisture in sucking sludge.
(4) excess sludge of the sewage treatment plants second pond in step 1 continues the pond body entering gravity concentration tank 1, enters mud and stop when mud liquid level arrives the design height of gravity concentration tank 1 pond body.
(5) after entering mud stopping, moving type plate case continues withdrawing moisture in mud, until when can not pump moisture, reinforcement sludge concentration process terminates.Through aforesaid operations, the moisture percentage in sewage sludge in gravity concentration tank is 97.8%, and the volume of gravity concentration tank decreases 74%, the total used time 30min of concentration process.
Quiescent setting method of enrichment residence time of the reinforcement sludge weight concentration method in the present embodiment and routine, at least compared with 12h, the sludge retention time for the treatment of process of the present invention decreased 96%.
Embodiment 2
In the present embodiment, sewage is after preliminary sedimentation tank, biochemical reaction tank, second pond process, and second pond discharges a large amount of excess sludges and enters mud gravity concentration tank, and gravity concentration tank is equipped with venturi pump and moving type plate case strengthening gravity concentration process.The total height of gravity concentration tank is 5.33m, and superelevation is 0.5m, and the moving type plate case in this example has 10, the long 100cm of each moving type plate case, high 100cm, wide 20cm.Concentration when excess sludge enters concentration basin is 4000mg/L, and water ratio is 99.6%, utilizes the step of venturi pump and moving type plate case strengthening gravity concentration as follows:
(1) moving type plate case is placed in the bottom of mud gravity concentration tank, opens the fluid pipeline valve 21 of filtrate discharge house steward 9, the valve 22 of closes compression air inlet house steward 13,
(2) when mud floods plate case, unlatching venturi pump unit starts the moisture in sucking sludge, and the pressure of negative pressure-pumping is-0.09MPa;
(3) negative pressure-pumping 10min, filter cloth top layer formed mud cake, aquifer yield decline 25% time, close the fluid pipeline valve 21 of filtrate discharge house steward 9, open the gas pipeline valve 22 of pressurized air inlet manifold 13, reverse stripping peels off the mud cake outside filter cloth, stripping time is 30s, and air compressor machine output pressure is 0.5MPa;
(4) after stripping terminates, movable plate case to the lower region of sludge concentration, closes compression air door, open filtrate discharge valve, repeating step (1)-(3), start again to aspirate moisture, moisture enters cyclic water tank, spilling be partly refluxed to biochemical reaction tank, simultaneously mud is concentrated.In whole suction filtration, stripping process, excess sludge continues to enter gravity concentration tank, until mud liquid level reaches design height.
(5) after entering mud stopping, moving type plate case continues withdrawing moisture in mud, until when can not pump moisture, reinforcement sludge concentration process terminates.Through aforesaid operations, through the moving type plate case reinforcement sludge gravity concentration of venturi pump negative pressure-pumping, the sludge concentration in final gravity concentration tank reaches 25g/L, water ratio 97.5%, mud waterpower shorter residence time 90%.
Above-mentioned is can understand and apply the invention for ease of those skilled in the art to the description of embodiment.Person skilled in the art obviously easily can make various amendment to these embodiments, and General Principle described herein is applied in other embodiments and need not through performing creative labour.Therefore, the invention is not restricted to embodiment here, those skilled in the art, according to announcement of the present invention, do not depart from improvement that scope makes and amendment all should within protection scope of the present invention.
Claims (10)
1. a reinforcement sludge gravity concentration device, it is characterized in that: comprise mud gravity concentration tank (1), venturi pump (2) and moving type plate case (3), wherein, described moving type plate case (3) is placed in mud gravity concentration tank (1), and venturi pump (2) is placed in mud gravity concentration tank (1) outward.
2. reinforcement sludge gravity concentration device according to claim 1, is characterized in that: the wooden partition (4) of described moving type plate case (3) surrounding offers some perforation (5), and the outer wall of moving type plate case (3) is enclosed with filter cloth (6).
3. reinforcement sludge gravity concentration device according to claim 1, is characterized in that: described venturi pump (2) comprises Venturi tube (15), cyclic water tank (16) and impeller pump (17).
4. reinforcement sludge gravity concentration device according to claim 1, it is characterized in that: described reinforcement sludge gravity concentration device includes the moving type plate case (3) of more than 2 or 2, described moving type plate case (3) is equidistantly fixed on head slab (18), head slab (18) is arranged on machinery mount (19), and head slab (18) moves forward and backward up and down with machinery mount (19).
5. reinforcement sludge gravity concentration device according to claim 1, is characterized in that: described moving type plate case (3) is rectangular parallelepiped, and it is long: high: wide ratio is (5 ~ 10): 5:1;
Or the inside of described moving type plate case (3) is provided with equally distributed support short slab (20);
Or the bottom end of described moving type plate case (3) is provided with filtrate discharge mouth (7), filtrate discharge mouth (7) is connected with filtrate discharge arm (8), filtrate discharge arm (8) is upwards fixed on head slab (18), the filtrate discharge arm (8) of each moving type plate case (3) is aggregated into a filtrate discharge house steward (9), filtrate discharge house steward (9) is connected to the water-in (10) of venturi pump (2), filtrate discharge house steward (9) has fluid pipeline valve (21);
Or the other end of the bottom of described moving type plate case (3) is provided with compressed air inlet port (11), exports (14) be connected by pressurized air air intake branch (12) with pressurized air inlet manifold (13) with air compressor machine.
6. reinforcement sludge gravity concentration device according to claim 5, it is characterized in that: described pressurized air inlet manifold (13) is fixed on plate box top flat board (18), several air intake branch (12) is divided into by a pressurized air inlet manifold (13), air intake branch (12) is connected to inlet mouth (11) place of each moving type plate case (3), pressurized air inlet manifold (13) has gas pipeline valve (22).
7. utilize a method for arbitrary described device reinforcement sludge gravity concentration in claim 1-6, it is characterized in that: comprise the following steps:
(1) moving type plate case is placed in the bottom of mud gravity concentration tank, opens the fluid pipeline valve (21) of filtrate discharge house steward (9), the gas pipeline valve (22) of closes compression air inlet house steward (13), inject mud;
(2) when mud floods moving type plate case (3) top, venturi pump (2) is opened;
(3) the fluid pipeline valve (21) of filtrate discharge house steward (9) is closed, open the gas pipeline valve (22) of pressurized air inlet manifold (13), the reverse stripping of pressurized air is utilized to peel off filter cloth (6) mud cake outward, the mud cake stripped down from filter cloth declines because of action of gravity, the mud submergence moving type plate case again that concentration is lower;
(4) after stripping terminates, the fluid pipeline valve (21) of closes compression air inlet house steward (13), open the fluid pipeline valve (21) of filtrate discharge house steward (9), the process of repeating step (1)-(3), or control the region that machinery mount makes moving type plate case move to not carry out mud strengthening concentrated, start the new reinforcement sludge gravity concentration cycle.
8. preparation method according to claim 7, is characterized in that: in described step (1), the water ratio of the mud of injection is more than or equal to 99%.
9. preparation method according to claim 7, is characterized in that: in described step (2), and the vacuum tightness at water-in (10) place of venturi pump (2) is-(0.05 ~ 0.10) MPa; The time of venturi pump (2) negative pressure-pumpings is 60 ~ 600s;
Or in described step (3), when venturi pump opens 60-600s or the venturi pump water outlet water yield have dropped 25%, close filtrate discharge house steward valve.
10. preparation method according to claim 7, is characterized in that: in described step (3), and the output pressure of air compressor is 0.1-0.8MPa, and reverse stripping time is 10-60s.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310277470.8A CN104276739B (en) | 2013-07-03 | 2013-07-03 | A kind of reinforcement sludge gravity concentration realize device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310277470.8A CN104276739B (en) | 2013-07-03 | 2013-07-03 | A kind of reinforcement sludge gravity concentration realize device and method |
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| CN104276739A true CN104276739A (en) | 2015-01-14 |
| CN104276739B CN104276739B (en) | 2016-08-17 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110255846A (en) * | 2019-06-19 | 2019-09-20 | 杨红兵 | A kind of method and device thereof of sewage treatment residual active sludge low temperature desiccation |
| CN110606639A (en) * | 2019-09-09 | 2019-12-24 | 湖南鑫恒环境科技有限公司 | Sand washing slurry dewatering system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1376532A (en) * | 2001-03-28 | 2002-10-30 | 华邦电子股份有限公司 | Sludge settling equipment |
| CN101117253A (en) * | 2007-08-03 | 2008-02-06 | 黄荣锋 | Activated sludge enriching method and vacuum suction concentration device |
| CN201660538U (en) * | 2009-12-09 | 2010-12-01 | 华侨大学 | Sludge vacuum-heaped load combined compression dewatering device |
| CN102099303A (en) * | 2008-09-25 | 2011-06-15 | 美得华水务株式会社 | Suction type filtering-condensing apparatus |
| CN202107607U (en) * | 2011-07-04 | 2012-01-11 | 广州市畅通管道工程有限公司 | Mobile sludge treatment device for pipe duct |
-
2013
- 2013-07-03 CN CN201310277470.8A patent/CN104276739B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1376532A (en) * | 2001-03-28 | 2002-10-30 | 华邦电子股份有限公司 | Sludge settling equipment |
| CN101117253A (en) * | 2007-08-03 | 2008-02-06 | 黄荣锋 | Activated sludge enriching method and vacuum suction concentration device |
| CN102099303A (en) * | 2008-09-25 | 2011-06-15 | 美得华水务株式会社 | Suction type filtering-condensing apparatus |
| CN201660538U (en) * | 2009-12-09 | 2010-12-01 | 华侨大学 | Sludge vacuum-heaped load combined compression dewatering device |
| CN202107607U (en) * | 2011-07-04 | 2012-01-11 | 广州市畅通管道工程有限公司 | Mobile sludge treatment device for pipe duct |
Non-Patent Citations (2)
| Title |
|---|
| A.S.GILMOUR，JR: "《速调管、行波管、磁控管、正交场放大器和回旋管》", 31 December 2012 * |
| 刘转年 等: "《环保设备基础》", 31 January 2013 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110255846A (en) * | 2019-06-19 | 2019-09-20 | 杨红兵 | A kind of method and device thereof of sewage treatment residual active sludge low temperature desiccation |
| CN110606639A (en) * | 2019-09-09 | 2019-12-24 | 湖南鑫恒环境科技有限公司 | Sand washing slurry dewatering system |
| CN110606639B (en) * | 2019-09-09 | 2022-03-15 | 湖南鑫恒环境科技有限公司 | Sand washing slurry dewatering system |
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| CN104276739B (en) | 2016-08-17 |
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