CN204643966U - Streaming Sewage treatment systems is gone out under entering under a kind of employing graded filtering media coordinates - Google Patents
Streaming Sewage treatment systems is gone out under entering under a kind of employing graded filtering media coordinates Download PDFInfo
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- CN204643966U CN204643966U CN201520221619.5U CN201520221619U CN204643966U CN 204643966 U CN204643966 U CN 204643966U CN 201520221619 U CN201520221619 U CN 201520221619U CN 204643966 U CN204643966 U CN 204643966U
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Abstract
The utility model belongs to sewage denitrification and dephosphorization field, discloses under entering under a kind of employing graded filtering media coordinates and goes out streaming Sewage treatment systems.This system comprises tank and filtering device, wherein, separated by dividing plate in the middle of filtering device, the top of dividing plate is lower than the top of filtering device, water-in is arranged on the left side of filtering device near bottom position, and water outlet is arranged on the right of dividing plate, on the bottom position of filtering device, water nozzle is arranged on the left side of dividing plate, on the bottom position of filtering device; The left side of filtering device internal partition is followed successively by from bottom to top: supporting layer, the first grating filter material layer and air; The right of filtering device internal partition is followed successively by from bottom to top: supporting layer, the second grating filter material layer and air; The side bottom of tank is connected by pipeline with described water-in, and this pipeline is provided with peristaltic pump, and the bottom of tank is higher than the top of filtering device.It gives full play to filtrate synergy mechanism, realizes the efficient object removing nitrogen and phosphorus in sewage.
Description
Technical field
The invention belongs to sewage denitrification and dephosphorization field, more particularly, go out streaming Sewage treatment systems under entering under relating to the cooperation of a kind of employing graded filtering media and denitrogenation dephosphorizing is carried out to domestic sewage in rural areas and livestock breeding wastewater.
Background technology
Along with developing rapidly of China's economy, the pollution problem of life in the countryside and livestock breeding wastewater is day by day serious.The maximum feature of two type sewage is that concentration of nitrogen and phosphorus is high.When in sewage, concentration of nitrogen and phosphorus height also makes to process sewage, the organic loading of influent quality is higher, higher organic loading often causes the blockage problem of sewage treatment facility under long-play condition, and this is also the place of comparatively concerned degree in sewage disposal.Blocking can cause filtrate fluid conductivity to reduce, and treatment effect declines, operation life shortening and other some problems.Therefore, find corresponding solution and preventive measure and just seem necessary and urgent.
In water treatment, filtrate is the core of biochemical reaction technology, and the quality of its performance directly affects efficiency, the reliability and stability of sewage disposal.In existing report, some trade waste is widely used in sewage disposal, such as hard coal, slag, flyash etc.The comprehensive utilization of the byproduct produced in water factory, mining industry and metallurgical process in recent years becomes study hotspot, comprising in dehydration aluminium mud, acid and residue and carbonic acid red mud.In dehydration aluminium mud, acid and residue and carbonic acid red mud come from by product in the Water treatment of waterworks respectively, produce the residue that produces in rutile process and with the residue of Bayer process from bauxite after stripping aluminum oxide, the above two contain abundant iron and calcium, the latter is based on ferric oxide and aluminum oxide, analyze to water pollutant removal aspect, dehydration aluminium mud has good effect to sewage denitrification and dephosphorization, can reduce the concentration of dissolved organic matter in surface water body, nitrogen and phosphorus in acid with residue, carbonic acid red mud removes the phosphorus in sewage by chemisorption.But single filter material wants to reach higher position reason effect has to pass through multiple-stage treatment, otherwise is unfavorable for energy-saving consumption-reducing.
Chinese invention patent, Authorization Notice No.: CN 103395951 B, authorized announcement date: 2014.08.13, discloses a kind of system and method utilized with residue and dehydration aluminium sludge treatment nitrogenous effluent in acid, belongs to nitrogenous effluent treatment field.This system to comprise in acid and residue device and dehydration aluminium device of sludge, be arranged on the top of dehydration aluminium device of sludge with residue device in acid, and in acid and the bottom of residue device is higher than the top of dehydration aluminium device of sludge, in this acid and the bottom of residue device and the bottom of this dehydration aluminium device of sludge, by pipeline communication, this pipeline are provided with valve near the position of dehydration aluminium device of sludge; This system also comprises tank, and the pipeline that tank is provided with the first water pump with on the pipeline be communicated with residue device upper end in described acid, tank is communicated with dehydration aluminium device of sludge upper end is provided with the second water pump.The present invention to utilize in acid and residue and dehydration aluminium mud as reaction medium, by structure two-stage filter tank, implement the alternate run of nitrogenous effluent, achieve the efficient removal of ammonia nitrogen and total nitrogen.Its weak point is: this invention is used in dehydration aluminium mud and acid and residue combined denitrification obtains better technique effect, but in long-play process, but there is device blockage problem, particularly in dehydration aluminium device of sludge, thus affect the treatment effect of device.
Summary of the invention
1. the technical problem that will solve
For the device blocking that there will be in existing acid and when residue is disposed of sewage with dehydration aluminium mud synergy, simultaneously can not efficient long time stable removal sewage in the problem of nitrogen and phosphorus, the invention provides under entering under a kind of employing graded filtering media coordinates and go out streaming Sewage treatment systems, this system fully combines the own characteristic of filtrate, and be equipped with rational operation scheme, well solve the problem that device there will be blocking, achieve the object removing nitrogen and phosphorus in sewage more efficiently simultaneously.
2. technical scheme
For solving the problem, technical scheme provided by the invention is:
Streaming Sewage treatment systems is gone out under entering under a kind of employing graded filtering media coordinates, comprise tank and filtering device, it is characterized in that, is separated by dividing plate in the middle of described filtering device, the top of dividing plate is lower than the top of filtering device, and described water-in is arranged on the left side of filtering device near bottom position, described water outlet is arranged on the right of dividing plate, on the bottom position of filtering device, described water nozzle is arranged on the left side of dividing plate, on the bottom position of filtering device;
The left side of filtering device internal partition is followed successively by from bottom to top: supporting layer, the first grating filter material layer and air;
The right of filtering device internal partition is followed successively by from bottom to top: supporting layer, the second grating filter material layer and air;
The first described grating filter material layer forms by 1:1 grating with residue and dehydration aluminium mud by acid; The second described grating filter material layer forms by 1:1 grating with residue and carbonic acid red mud by acid, arrange like this and can have good removal effect to the nitre nitrogen that the nitration reaction of the first grating filter material layer produces, overall synthetic operation can reach and run much larger than single filter material the technique effect brought.Meanwhile, twice filtrate has good phosphor-removing effect, and synthetic operation has higher clearance to the phosphorus in sewage; Overcome single employing dehydration aluminium mud or carbonic acid red mud run the device blockage problem that there will be as filtrate, filtrate itself has larger surface-area, can adsorb the nitrogen in sewage and phosphorus, the nitrification and denitrification bacterium be simultaneously present in wherein can play a role to sewage water denitrification;
Be selected from ilmenite with residue in described acid and be converted into the waste produced in rutile process; The side of described tank is connected by pipeline with described water-in near bottom position, and this pipeline is provided with peristaltic pump, the bottom of tank is higher than the top of filtering device, inversion is flow to water transport be used for the first grating filter material layer augmenting response contact area and can make full use of into the carbon source in water, strengthen its denitrifying capacity.
Preferably, higher than described filtering device top 0.5 ~ 1m bottom described tank.
Preferably, the top of described dividing plate is lower than filtering device top 10 ~ 15cm, and the top of filtering device is open type.
Preferably, described supporting layer is made up of gravel and pebbles.
Go out streaming sewage water treatment method under entering under a kind of employing graded filtering media coordinates, the steps include:
A, build system according to claim 1;
B, closedown water nozzle;
C, open peristaltic pump, in tank, Nitrogen-and Phosphorus-containing sewage enters filtering device by peristaltic pump from water-in, sewage enters the first grating filter material layer process through supporting layer, wastewater level constantly raises simultaneously, when the height of elevation of water surface higher than dividing plate, sewage will flow on the right side of dividing plate on the left of dividing plate, and sewage enters the second grating filter material layer process, flow through supporting layer, flow out from water outlet;
After Nitrogen-and Phosphorus-containing sewage drains in D, tank, close peristaltic pump;
E, open water nozzle, by the residual sewage emptying on the filtering device internal partition left side.
Preferably, described tank is distributed into the Nitrogen-and Phosphorus-containing sewage hydraulic load scope of described filtering device is 0.4 ~ 1.0m
3m
-2d
-1.
3. beneficial effect
Adopt technical scheme provided by the invention, compared with prior art, there is following beneficial effect:
(1) the present invention first grating filter material layer forms by 1:1 grating with residue and dehydration aluminium mud by acid; The second described graded filtering media forms by 1:1 grating with residue and carbonic acid red mud by acid, in tank, Nitrogen-and Phosphorus-containing sewage enters filtering device by peristaltic pump from water-in, coordinate specific current operation scheme, the ability of its denitrogenation dephosphorizing can be given full play to, the removal effect of nitrogen and phosphorus two kinds of nutritive substances in sewage is promoted further, can have good removal effect to the nitre nitrogen that the nitration reaction of the first grating filter material layer produces, overall synthetic operation reaches and runs much larger than single filter material the technique effect brought simultaneously;
(2) side bottom of tank of the present invention is connected by pipeline with described water-in, and this pipeline is provided with peristaltic pump, the bottom of tank is higher than the top of filtering device, inversion is flow to water transport be used for the first grating filter material layer augmenting response contact area and can make full use of into the carbon source in water, strengthen its denitrifying capacity;
(3) present invention employs rational filtrate grating overcome single employing dehydration aluminium mud or carbonic acid red mud run the device blockage problem that there will be as filtrate, filtrate itself has larger specific surface area, can adsorb the nitrogen in sewage and phosphorus, the nitrification and denitrification bacterium be simultaneously present in wherein can play a role to sewage water denitrification;
(4) with low cost, the Be very effective of selected materials of the present invention, is especially applicable to domestic sewage in rural areas and livestock breeding wastewater process, has larger market outlook and application value.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1, tank; 2, peristaltic pump; 3, filtering device; 4, dividing plate; 5, the first grating filter material layer; 6, the second grating filter material layer; 7, water nozzle; 8, water-in; 9, water outlet; 10, supporting layer.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be further described.
Embodiment 1: certain domestic sewage in rural areas is processed
Certain domestic sewage in rural areas is processed, streaming Sewage treatment systems is gone out under entering under proposing the cooperation of a kind of employing graded filtering media, composition graphs 1, it comprises tank 1 and filtering device 3, separated by dividing plate 4 in the middle of filtering device 3, filtering device 3 is divided into the structure of two-stage, the top of dividing plate 4 is lower than the top of filtering device 3, and the top of filtering device 3 is open type; Water-in 8 is arranged on the left side of filtering device 3 near bottom position, and water outlet 9 is arranged on the right of dividing plate 4, on the bottom position of filtering device 3, after sewage disposal is complete, to drain the residual sewage on the right side of filtering device 3 internal partition 4.Described water nozzle 7 is arranged on the left side of dividing plate 4, on the bottom position of filtering device 3, after sewage disposal is complete, to drain the residual sewage on the left of filtering device 3 internal partition 4.
The left side of filtering device 3 internal partition 4 is followed successively by from bottom to top: supporting layer 10, first grating filter material layer 5 and air; Supporting layer 10 is made up of gravel and pebbles, filter material layer is played to the effect of support, first grating filter material layer 5 forms by 1:1 grating with residue and dehydration aluminium mud by acid, and the right of filtering device 3 internal partition 4 is followed successively by from bottom to top: supporting layer 10, second grating filter material layer 6 and air; Second grating filter material layer 6 forms by 1:1 grating with residue and carbonic acid red mud by acid; Carbonic acid red mud forms through carbonization with the residue of Bayer process from bauxite after stripping aluminum oxide.
Be selected from ilmenite with residue in acid and be converted into the waste produced in rutile process, dehydration aluminium mud is selected from the residue byproduct that the flocculation agent purified tap waters such as aluminium salt produce, and carbonic acid red mud forms through carbonization with the residue of Bayer process from bauxite after stripping aluminum oxide; Arrange like this and can have good removal effect to the nitre nitrogen that the nitration reaction of the first grating filter material layer produces, overall synthetic operation reaches and runs much larger than single filter material the technique effect brought; Meanwhile, twice filtrate has good phosphor-removing effect, and synthetic operation has higher clearance to the phosphorus in sewage; Overcome single employing dehydration aluminium mud or carbonic acid red mud run the device blockage problem that there will be as filtrate, filtrate itself has larger surface-area, can adsorb the nitrogen in sewage and phosphorus, the nitrification and denitrification bacterium be simultaneously present in wherein can play a role to sewage water denitrification.
The side of tank 1 is connected by pipeline with described water-in 8 near bottom position, and this pipeline is provided with peristaltic pump 2, the bottom of tank 1 is higher than the top of filtering device 3, inversion is flow to water transport be used for the first grating filter material layer augmenting response contact area and can make full use of into the carbon source in water, strengthen its denitrifying capacity.
Go out streaming sewage water treatment method under entering under a kind of employing graded filtering media coordinates, the steps include:
A, build system according to claim 1;
B, closedown water nozzle 7;
C, open peristaltic pump 2, in tank 1, Nitrogen-and Phosphorus-containing sewage enters filtering device 3 by peristaltic pump 2 from water-in 8, and the Nitrogen-and Phosphorus-containing sewage hydraulic load that tank 1 is distributed into filtering device 3 is 0.4m
3m
-2d
-1, sewage enters the first grating filter material layer 5 through supporting layer 10 and processes, and wastewater level constantly raises, when the height of elevation of water surface higher than dividing plate 4, sewage will flow on the right side of dividing plate 4 on the left of dividing plate 4, and sewage enters the second graded filtering media 6 and processes, flow through supporting layer 10, flow out from water outlet 9;
After Nitrogen-and Phosphorus-containing sewage drains in D, tank 1, close peristaltic pump 2;
E, open water nozzle 7, by the residual sewage emptying on filtering device 3 internal partition 4 left side, namely system completes a cycle of operation.
Wherein, the long 3m of tank 1, wide 2m, total depth 1.2m, significant depth 1m, make by PVC material; Filtering device 3 overall length 0.6m, wide 0.3m, total height 1m, dividing plate 4 is highly 0.85m, and after the centre of filtering device 3 is evenly separated by dividing plate 4, every part length of side is 0.3m, and the useful volume of every part is 76.5L; On the left of filtering device 3 internal partition 4 from top to bottom: the first grating filter material layer 5 is highly 60cm, supporting layer 10 is highly 20cm; , supporting layer 10 is highly 20cm on the right side of filtering device 3 internal partition 4 from top to bottom: the second graded filtering media 6 is highly 60cm, and the bottom of tank 1 is higher than the top 0.5m of filtering device 3.
This system runs 2 months continuously, monitors, after rural domestic sewage treatment every 7 days to effluent quality, in water outlet, total nitrogen and total phosphorus all have higher removal effect, other water-quality guideline also maintain higher clearance, as shown in table 1, and do not occur blockage problem during plant running.
The water inlet of certain domestic sewage in rural areas and effluent quality test index situation in table 1 embodiment 1
Embodiment 2: certain animal farm wastewater is processed
Certain animal farm wastewater is processed, under entering under proposing the cooperation of a kind of employing graded filtering media, goes out streaming Sewage treatment systems, composition graphs 1, the long 4m of tank 1, wide 3m, total depth 1.5m, significant depth 1.3m, brick mix structure; Filtering device 3 overall length 1m, wide 0.5m, total height 1m, dividing plate 4 is highly 0.9m, and after evenly being separated by dividing plate 4 in the middle of filtering device 3, every part length of side is 0.5m, and the useful volume of every part is 225L; The Nitrogen-and Phosphorus-containing sewage hydraulic load that tank 1 is distributed into filtering device 3 is 1.0m
3m
-2d
-1.The bottom of tank 1 is higher than the top 1m of filtering device 3.Other parts are with embodiment 1.
This system runs 3 months continuously, monitors effluent quality every 7 days, and result of study shows, and the total nitrogen in animal farm wastewater and total phosphorus all have higher removal effect, as shown in table 2, and do not occur blockage problem during plant running.
The water inlet of certain animal farm wastewater and effluent quality test index situation in table 2 embodiment 2
Claims (4)
1. an employing graded filtering media goes out streaming Sewage treatment systems under entering under coordinating, comprise tank (1) and filtering device (3), it is characterized in that, separated by dividing plate (4) in the middle of described filtering device (3), the top of dividing plate (4) is lower than the top of filtering device (3), water-in (8) is arranged on the left side of filtering device (3) near bottom position, water outlet (9) is arranged on the right of dividing plate (4), on the bottom position of filtering device (3), water nozzle (7) is arranged on the left side of dividing plate (4), on the bottom position of filtering device (3),
The left side of filtering device (3) internal partition (4) is followed successively by from bottom to top: supporting layer (10), the first grating filter material layer (5) and air;
The right of filtering device (3) internal partition (4) is followed successively by from bottom to top: supporting layer (10), the second grating filter material layer (6) and air;
The first described grating filter material layer (5) forms by 1:1 grating with residue and dehydration aluminium mud by acid; The second described grating filter material layer (6) forms by 1:1 grating with residue and carbonic acid red mud by acid;
Be selected from ilmenite with residue in described acid and be converted into the waste produced in rutile process;
The side of described tank (1) is connected by pipeline with described water-in (8) near bottom position, and this pipeline is provided with peristaltic pump (2), the bottom of tank (1) is higher than the top of filtering device (3).
2. one according to claim 1 goes out streaming Sewage treatment systems under entering under adopting graded filtering media to coordinate, and it is characterized in that, described tank (1) bottom is higher than described filtering device (3) top 0.5 ~ 1m.
3. one according to claim 1 and 2 goes out streaming Sewage treatment systems under entering under adopting graded filtering media to coordinate, it is characterized in that, the top of described dividing plate (4) is lower than filtering device (3) top 10 ~ 15cm, and the top of filtering device (3) is open type.
4. one according to claim 3 goes out streaming Sewage treatment systems under entering under adopting graded filtering media to coordinate, and it is characterized in that, described supporting layer (10) is made up of gravel and pebbles.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520221619.5U CN204643966U (en) | 2015-04-13 | 2015-04-13 | Streaming Sewage treatment systems is gone out under entering under a kind of employing graded filtering media coordinates |
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| CN201520221619.5U CN204643966U (en) | 2015-04-13 | 2015-04-13 | Streaming Sewage treatment systems is gone out under entering under a kind of employing graded filtering media coordinates |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105923783A (en) * | 2016-07-12 | 2016-09-07 | 中国科学院水生生物研究所 | Land treatment method and land treatment system for efficiently removing nitrogen and phosphorus and system |
-
2015
- 2015-04-13 CN CN201520221619.5U patent/CN204643966U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105923783A (en) * | 2016-07-12 | 2016-09-07 | 中国科学院水生生物研究所 | Land treatment method and land treatment system for efficiently removing nitrogen and phosphorus and system |
| CN105923783B (en) * | 2016-07-12 | 2019-06-21 | 中国科学院水生生物研究所 | A kind of land disposal method and system of high-efficient denitrification and dephosphorization |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 Termination date: 20160413 |
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| CF01 | Termination of patent right due to non-payment of annual fee |