CN117164110B - Solid phase denitrification baffling reactor - Google Patents
Solid phase denitrification baffling reactor Download PDFInfo
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- CN117164110B CN117164110B CN202311451692.7A CN202311451692A CN117164110B CN 117164110 B CN117164110 B CN 117164110B CN 202311451692 A CN202311451692 A CN 202311451692A CN 117164110 B CN117164110 B CN 117164110B
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- 239000007787 solid Substances 0.000 claims abstract description 40
- 229910002651 NO3 Inorganic materials 0.000 claims abstract description 10
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims abstract description 10
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- 239000010865 sewage Substances 0.000 claims description 37
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- 229920000642 polymer Polymers 0.000 description 4
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- HEPNIXOZRUNXSR-UHFFFAOYSA-N 3-hydroxybutanoic acid;2-hydroxypropanoic acid Chemical compound CC(O)C(O)=O.CC(O)CC(O)=O HEPNIXOZRUNXSR-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a solid phase denitrification baffling reactor, which adopts the following scheme that the solid phase denitrification baffling reactor comprises a box body and a cover body, wherein the cover body is detachably arranged at the top end of the box body; according to the invention, the right inclined surface of the V-shaped folded plate is inclined towards the right lower direction during forward denitrification, the left inclined surface is vertical to the bottom surface of the box body, and the left channel of the V-shaped folded plate is plugged, the left inclined surface of the V-shaped folded plate is inclined towards the left lower direction during reverse denitrification, the right inclined surface is vertical to the bottom surface of the box body, and the right channel of the V-shaped folded plate is plugged, so that flocculent precipitate can be effectively filtered while tail water in the flowing direction is effectively denitrified, an operator can adjust the inclined direction of the V-shaped folded plate according to the water flow and the concentration of nitrate in water after a period of time, an original water inlet is changed into a water outlet, the original water outlet is changed into a water inlet, the bidirectional denitrification treatment is completed, the flexible supplementation of solid carbon sources is realized, and the higher denitrification effect can be still ensured while the supplementation is realized.
Description
Technical Field
The invention relates to the technical field of cultivation tail water treatment, in particular to a solid phase denitrification baffling reactor.
Background
The circulating water culture system (RAS) has the advantages of water saving, land saving, high efficiency, environmental protection, controllable system and the like, and has the advantages of reducing the culture water consumption, the tail water discharge and the likeHas significant advantages. In the bait casting type intensive high-density cultivation mode, bait casting is a main source of nitrogen pollution, and is decomposed and converted into NH 4 + -N and NO 2 - N has strong toxicity to cultured organisms, and industrial circulating water culture is generally provided with a biological filter to convert the cultured organisms into NO with low biological toxicity through nitration reaction 3 - -N and recycling 90-95% of the water. Thus, "nitrate accumulation" is a common phenomenon in industrial RAS, and untreated tail water discharge can lead to off-shore environmental pollution. At present, the 'standard for discharging the culture tail water' which is discharged from the platform sequentially in many countries marks the necessity of discharging the culture tail water completely up to standard. Therefore, the efficient denitrification of the mariculture tail water is an urgent need for marine environmental protection and green development of the mariculture industry.
Among the different nitrate removal methods, biological denitrification is considered to be the most effective and promising technique for removing nitrogen from wastewater. C/N is an important factor in determining the denitrification rate. It has been found that in wastewater with low C/N characteristics, such as groundwater, factory wastewater, domestic wastewater and aquaculture circulating water, sufficient electron donors are required to ensure complete denitrification process, and insufficient electrons can affect denitrification efficiency. The seawater circulating aquaculture tail water also has the problem of lower C/N. Common liquid carbon sources such as methanol, ethanol, acetic acid, glucose and the like have complex operation, so that the addition amount is difficult to control, and the phenomena of reduction of dissolved oxygen in water, increase of death rate caused by stress of fish and the like exist. Solid carbon sources such as artificial high molecular polymers and natural agricultural waste can effectively avoid the risk of liquid carbon sources. Artificial polymers such as Polyhydroxyalkanoate (PHA), poly 3-hydroxybutyrate-hydroxypropionate (PHBV), polycaprolactone (PCL), etc. exhibit good impact load resistance and high denitrification efficiency, but the high cost of the artificial polymers is a major obstacle to their use. Natural agricultural wastes such as wood chips, corncobs, rice hulls and the like have good removal effect and are economical, but the quality of effluent water can be fluctuated. Thus, mixing natural agricultural waste with artificial polymers as a cost effective and affordable solid carbon source may be a strategy to balance denitrification performance and denitrification cost.
Secondly, the baffled reactor used at present is a one-way reactor and does not have the overturning function. Therefore, the reactor is used for a long time, the solid carbon sources of the front grids of the reactor are consumed too fast, the denitrification effect is poor, if the solid carbon sources are replaced uniformly, the solid carbon sources of the rear channels of the reactor are wasted, a certain time is needed for microbial film formation growth, the denitrification effect of the baffled reactor can be greatly reduced in the initial stage of replacement, and accordingly, the design of the reactor capable of realizing bidirectional denitrification is considered, according to the water flow and the concentration of nitrate in water, after a period of time, the inclination direction of a folded plate is adjusted, the original water inlet is changed into the water outlet, and the original water outlet is changed into the water inlet, so that bidirectional denitrification treatment is realized.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a solid phase denitrification baffling reactor, which is characterized in that solid carbon sources corncob and PCL are added into the baffling reactor to be used as a filler for bacterial adhesion growth on one hand and an organic carbon source capable of providing electrons for denitrification on the other hand, a baffling reactor with seven channels is constructed, tail water sequentially passes through a first channel, a second channel, a third channel, a fourth channel, a fifth channel, a sixth channel and a seventh channel to be subjected to denitrification treatment, so that efficient removal of nitrate is realized, and effluent is still discharged into a nitrifying filter to be subjected to subsequent treatment.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the solid phase denitrification baffling reactor comprises a box body and a cover body, wherein the cover body is detachably arranged at the top end of the box body, six partition boards are arranged in the box body, the interior of the box body is divided into a plurality of areas by the six partition boards, each area is provided with a sewage discharging mechanism, six vertical plates are fixedly connected to the surface of the cover body, each vertical plate is positioned in the area in the box body, a rotating shaft is arranged at the bottom of each vertical plate through a protruding block, a V-shaped folded plate is fixedly connected to the surface of each rotating shaft, and a sealing piece is designed at the joint of the rotating shaft and the rear wall of the box body;
one end of the rotating shaft is rotationally connected with the front inner wall of the box body, the other end of the rotating shaft penetrates through the rear wall of the box body, the driven wheel is mounted at the end part of the rotating shaft, the mounting plate is fixedly connected with the rear wall of the box body, the driving motor is mounted on the surface of the mounting plate, the output end of the driving motor is fixedly connected with the center wheel, the center wheel is meshed with the rack, the driven wheel is meshed with the rack, a solid carbon source is filled between the vertical plate and the adjacent partition plate, the bottom of the solid carbon source is plugged through the blocking net, and a plurality of first horn holes and second horn holes are respectively formed in two inclined surfaces of the V-shaped folded plate.
Preferably, the spout has been seted up to the lateral wall of mounting panel, the back of rack is provided with a plurality of guide bars, guide bar tip fixedly connected with stopper, stopper sliding connection is inside the spout, the inside top of spout and bottom are all embedded with the ball, ball and stopper roll connection.
Preferably, the partition plate divides the interior of the box into seven channels, and the seven channels are a first channel, a second channel, a third channel, a fourth channel, a fifth channel, a sixth channel and a seventh channel from left to right in sequence, a water inlet is formed in the top of the first channel, a water outlet is formed in the top of the seventh channel, solid carbon sources are filled in the first channel, the second channel, the third channel, the fourth channel, the fifth channel, the sixth channel and the seventh channel, the solid carbon sources filled in the first channel and the second channel are corncobs and PCL, the solid carbon sources filled in the third channel, the fourth channel and the fifth channel are PCL, and the solid carbon sources filled in the sixth channel and the seventh channel are carbon ceramsites.
Preferably, the center wheel and the driven wheel are respectively positioned at two sides of the rack, a gap is reserved between the top end of the partition board and the cover body, a net surface is arranged between the partition board and the cover body, and the net surface is manufactured by adopting a steel wire net.
Preferably, the blowdown mechanism includes a plurality of fly leaf and a plurality of spacing section of thick bamboo, a plurality of the fly leaf all sets up in the box inside, spacing section of thick bamboo fixed connection is in the fly leaf bottom, a plurality of arc wall of groove has been seted up to the box inside, the wall profile of arc wall is unanimous with the outline of spacing section of thick bamboo, and spacing section of thick bamboo is located the arc wall, arc wall of groove bottom portion is provided with a plurality of drain, the bottom half is provided with the blowdown interface with drain switch-on, the blowdown interface links to each other with blow off pipe or blowdown pond.
Preferably, a plurality of hangers are respectively arranged on two sides of the movable plate, each hanger is movably connected with a connecting rod, the tail end of each connecting rod is rotationally connected with a movable block, a plurality of movable grooves inside the box are fixedly connected with a limiting rod, and each movable block is located in each movable groove and penetrates through the corresponding limiting rod, and a compression spring is sleeved on each limiting rod.
Preferably, the compression spring is positioned on one side of the surface of the movable block far away from the arc-shaped groove, and the arc-shaped grooves on the front side and the rear side of the sewage outlet form an inclined slope from far to near.
Preferably, the first horn hole and the second horn Kong Xiangbei are arranged, the opposite sides of the two inclined planes of the V-shaped folded plate are respectively provided with a first attached inclined plate and a second attached inclined plate which incline towards the center of the V-shaped folded plate, the first attached inclined plate and the second attached inclined plate incline downwards relatively, the necking ends of the first horn hole and the second horn hole are positioned on one sides of the first attached inclined plate and the second attached inclined plate, which are close to each other, and the necking ends of the first horn hole and the second horn hole of each layer are positioned on the bottom ends of the first attached inclined plate and the second attached inclined plate of the adjacent layer respectively.
Preferably, the sealing element comprises an inner T-shaped cylinder and an outer T-shaped cylinder, wherein the horizontal wings of the inner T-shaped cylinder are fixedly connected to the rear inner wall of the box body, the rotating shaft penetrates through the vertical cylinder of the inner T-shaped cylinder, the horizontal wings of the outer T-shaped cylinder are fixedly connected to the surface of the rotating shaft, the vertical pipe arranged on the surface of the outer T-shaped cylinder is located on the outer side of the vertical cylinder of the inner T-shaped cylinder, the end part of the vertical pipe of the outer T-shaped cylinder extends along the length direction of the vertical cylinder of the inner T-shaped cylinder in an S-shaped curve, the end part of the S-shaped curve protrudes out of the end part of the vertical cylinder of the inner T-shaped cylinder, an invaginated rubber ring is arranged between the side wall of the S-shaped curve and the end part of the vertical cylinder of the inner T-shaped cylinder, the movable end of the rubber ring is attached to the end part of the vertical cylinder of the inner T-shaped cylinder, the outer wall of the rubber ring is fixedly connected with the end part of the S-shaped curve of the outer T-shaped cylinder, and the inner wall of the rubber ring is attached to the end part of the vertical cylinder of the inner T-shaped cylinder.
Compared with the prior art, the invention provides a solid phase denitrification baffling reactor, which has the following beneficial effects:
1. this solid phase denitrification baffling reactor, replace former swash plate through setting up V type folded plate, and rotate with the riser bottom through the pivot and be connected, during forward denitrification, the right side inclined plane of V type folded plate is inclined downwards right, and left side inclined plane is perpendicular with the box bottom surface, and realize the shutoff to its left side passageway, when reverse denitrification, the left side inclined plane of V type folded plate is inclined downwards left, right side inclined plane is perpendicular with the box bottom surface, and realize the shutoff to its right side passageway, can carry out effectual precipitation filtration to its flocculent precipitate when effectively denitriding the tailwater of flow direction, the operating personnel can change the former water inlet into the water inlet according to discharge and the concentration of nitrate that intakes after a period of time, accomplish the nimble replenishment of solid carbon source, and can still guarantee higher denitrification effect when supplementing.
2. This solid phase denitrification baffling reactor, through setting up first horn hole, first attached swash plate, second attached swash plate and second horn hole, when the tail water of the back of the perpendicular inclined plane of V type folded plate is through perpendicular inclined plane, the flaring end in first horn hole can accelerate tail water flow to the inboard of V type folded plate, and first horn hole constantly reduces, on the one hand, lengthen the speed that tail water flows to the inboard of V type folded plate, reduce the flow that flows to the inboard of V type folded plate simultaneously, and the tail water that flows to the inboard of V type folded plate can meet first attached swash plate at first, then carry out once attached precipitation to its flocculent precipitate, when the tail water after once attached precipitation flows to the inclined plane of V type folded plate, can meet the attached swash plate of second at first, carry out the attached precipitation of secondary to flocculent precipitate, the tail water after the attached precipitation of second flows to the region above the V type folded plate from the second horn hole, the big aperture design behind the second horn Kong Xianxiao can stop flocculent precipitate and can make the flocculent precipitate get into next inclined plane layer fast after two times to precipitate simultaneously.
3. The solid phase denitrification baffling reactor is characterized in that an outer T-shaped cylinder and an inner T-shaped cylinder are arranged, because the liquid is filled in a box body, the tightness of the penetration part between a rotating shaft and the rear wall of the box body is required to be considered, a sealing piece is designed between the rotating shaft and the rear wall of the box body, the inner T-shaped cylinder and the outer T-shaped cylinder are connected, the horizontal wings of the inner T-shaped cylinder are fixed on the rear inner wall of the box body, the rotating shaft penetrates through the vertical cylinder of the inner T-shaped cylinder, the horizontal wings of the outer T-shaped cylinder are fixed on the rotating shaft, the vertical cylinder of the outer T-shaped cylinder is positioned on the outer side of the vertical cylinder of the inner T-shaped cylinder, the end part of the vertical cylinder of the outer T-shaped cylinder extends in an S-shaped curve along the length direction of the vertical cylinder of the inner T-shaped cylinder, and the end part of the S-shaped curve protrudes out of the end part of the vertical cylinder of the inner T-shaped cylinder, an inward sinking rubber ring is arranged between the side wall of the S-shaped curve and the end part of the vertical cylinder of the inner T-shaped cylinder, the movable end of the rubber ring is attached to the end part of the vertical cylinder of the inner T-shaped cylinder, and culture tail water in the box body flows between the inner T-shaped cylinder and the outer T-shaped cylinder from a cylinder hole of the inner T-shaped cylinder, but the culture tail water firstly flows into the S-shaped curve cylinder with larger holes due to the limit of the rubber ring, and the S-shaped curve is a loop formed by bending the outer T-shaped cylinder back and forth and the side wall of the rotating shaft, so that the culture tail water flowing between the inner T-shaped cylinder and the outer T-shaped cylinder is back-flowed into the cylinder hole of the inner T-shaped cylinder, effective sealing is realized, and meanwhile, no direct contact or connection exists between the inner T-shaped cylinder and the outer T-shaped cylinder, namely the rotating resistance of the rotating shaft is not increased.
Drawings
FIG. 1 is an overall view of a solid phase denitrification baffled reactor according to the present invention;
FIG. 2 is a cross-sectional view at A in FIG. 1;
FIG. 3 is a view of the V-shaped flap of FIG. 2 rotated to a centered position;
FIG. 4 is a schematic view of a movable plate;
FIG. 5 is a front view of the solid phase denitrification baffled reactor after turning the V-shaped folded plate;
FIG. 6 is a rear view of a solid phase denitrification baffled reactor;
FIG. 7 is a schematic view of a V-shaped flap in a solid phase denitrification baffled reactor;
FIG. 8 is a cross-sectional view of a V-shaped folded plate in a solid phase denitrification baffled reactor;
FIG. 9 is a schematic diagram of a rotor and rack in a solid phase denitrification baffled reactor;
FIG. 10 is a side cross-sectional view of the mounting plate in a solid phase denitrification baffled reactor;
FIG. 11 is a schematic view of a spindle;
FIG. 12 is an enlarged view of the junction of the shaft and the back wall of the tank in the solid phase denitrification baffled reactor;
FIG. 13 is a schematic view of an inner T-barrel;
FIG. 14 is a schematic view of an outer T-barrel;
fig. 15 is a schematic view of an inner T-barrel and outer T-barrel nest.
In the figure: 1. a case; 2. a cover body; 3. a vertical plate; 4. a solid carbon source; 5. a partition plate; 6. a V-shaped folded plate; 601. a first flare hole; 602. a first attaching swash plate; 603. a second attaching inclined plate; 604. a second flare hole; 7. a rack; 701. a limiting block; 8. a mounting plate; 801. a chute; 9. a center wheel; 10. driven wheel; 11. a rotating shaft; 12. an outer T-barrel; 13. a vertical pipe; 14. a rubber ring; 15. an inner T-shaped cylinder; 16. a water inlet; 17. a water outlet; 18. a sewage discharge interface; 19. an arc-shaped groove; 20. a movable plate; 21. a limiting cylinder; 22. a movable block; 23. a compression spring; 24. a connecting rod; 25. a limit rod; 26. and (5) hanging the ear.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Example 1:
referring to fig. 1-6, a solid phase denitrification baffling reactor comprises a box body 1 and a cover body 2, wherein the cover body 2 is detachably arranged at the top end of the box body 1, six partition boards 5 are arranged in the box body 1, the interior of the box body 1 is divided into a plurality of areas by the six partition boards 5, each area is provided with a sewage discharging mechanism, six vertical plates 3 are fixedly connected to the surface of the cover body 2, each vertical plate 3 is positioned in the area in the box body 1, a rotating shaft 11 is arranged at the bottom of each vertical plate 3 through a convex block, a V-shaped folded plate 6 is fixedly connected to the surface of the rotating shaft 11, and a sealing piece is designed at the joint of the rotating shaft 11 and the rear wall of the box body 1;
one end of the rotating shaft 11 is rotationally connected with the front inner wall of the box body 1, the other end of the rotating shaft penetrates through the rear wall of the box body 1, the driven wheel 10 is installed at the end part of the rotating shaft 11, the mounting plate 8 is fixedly connected with the rear wall of the box body 1, the driving motor is installed on the surface of the mounting plate 8, the output end of the driving motor is fixedly connected with the center wheel 9, the center wheel 9 is meshed with the rack 7, the driven wheel 10 is meshed with the rack 7, the solid carbon source 4 is filled between the vertical plate 3 and the adjacent partition plate 5, the bottom of the solid carbon source 4 is plugged through the blocking net, and a plurality of first horn holes 601 and second horn holes 604 are respectively formed in two inclined planes of the V-shaped folded plate 6.
In the invention, a chute 801 is formed in the side wall of a mounting plate 8, a plurality of guide rods are arranged on the back surface of a rack 7, a limiting block 701 is fixedly connected to the end of each guide rod, the limiting block 701 is slidably connected to the inside of the chute 801, balls are embedded in the top and the bottom of the inside of the chute 801, and the balls are in rolling connection with the limiting block 701.
In the invention, the partition board 5 divides the interior of the box body 1 into seven channels, a first channel, a second channel, a third channel, a fourth channel, a fifth channel, a sixth channel and a seventh channel are sequentially arranged from left to right, the top of the first channel is provided with a water inlet 16, the top of the seventh channel is provided with a water outlet 17, solid carbon sources 4 are filled in the first channel, the second channel, the third channel, the fourth channel, the fifth channel, the sixth channel and the seventh channel, the solid carbon sources 4 filled in the first channel and the second channel are corncobs and PCL, the corncobs and the PCL are mixed and filled according to the mass ratio of 1:1-3, the solid carbon sources 4 filled in the third channel, the fourth channel and the fifth channel are PCL, the solid carbon sources 4 filled in the sixth channel and the seventh channel are carbon ceramic particles, and the tail water sequentially passes through the first channel, the second channel, the third channel, the fourth channel, the fifth channel, the sixth channel and the seventh channel, and the nitrate-containing filter tank are removed after denitrification treatment, the high-efficiency of the nitrate-yielding water is realized, and the nitrate-yielding water is still discharged to the subsequent filter tank. Therefore, not only can the nitrate be efficiently removed, but also unused and redundant DOC released by the solid carbon source 4 can be further reduced in the nitrifying filter, so that the influence on the cultured organisms is reduced by the maximum program.
According to the water flow and the nitrate concentration of the inflow water, after a period of time, the corncob can release the carbon source to completely release light, PCL almost disappears, the most serious loss is certainly the inflow end, the first channel is the most serious, the fifth channel has the least loss, the water inlet 16 and the water outlet 17 need to be exchanged at the moment, the inflow water is from the seventh channel end, the biomembrane formed by the sixth and seventh channels can continuously play the role of denitrification, the used organic carbon source is DOC in the inflow water, and the PCL which is still stored in the third, fourth and fifth channels can continuously provide electrons for denitrification. After the water inlet and outlet 17 is turned over, the remaining corncob in the first and second channels is cleaned, new corncob plus PCL is added, and PCL in the third, fourth and fifth channels is supplemented for the continuous film hanging growth of microorganisms.
When the PCL of the third, fourth and fifth channels is disappeared for a period of time, the water inlet and outlet 17 is continuously reversed, the water inlet 16 is taken as the water outlet 17 to discharge water, the water outlet 17 is taken as the water inlet 16 to feed water, PCL is added in the third, fourth and fifth channels again, film hanging growth is continuously carried out, and the main denitrification force is the first, second, sixth and seventh channels. And so on. The bottoms of the first channel, the second channel, the third channel, the fourth channel, the fifth channel, the sixth channel and the seventh channel are all provided with a sewage disposal mechanism, and sewage at the bottom layer is discharged through the sewage disposal mechanism periodically.
In the invention, a central wheel 9 and a driven wheel 10 are respectively positioned at two sides of a rack 7, a gap is reserved between the top end of a baffle plate 5 and a cover body 2, a net surface is arranged between the baffle plate 5 and the cover body 2, and the net surface is manufactured by adopting a steel wire net.
Example 2:
referring to fig. 1-7, a solid phase denitrification baffling reactor comprises a box body 1 and a cover body 2, wherein the cover body 2 is detachably arranged at the top end of the box body 1, six partition boards 5 are arranged in the box body 1, the interior of the box body 1 is divided into a plurality of areas by the six partition boards 5, each area is provided with a sewage discharging mechanism, six vertical plates 3 are fixedly connected to the surface of the cover body 2, each vertical plate 3 is positioned in the area in the box body 1, a rotating shaft 11 is arranged at the bottom of each vertical plate 3 through a convex block, a V-shaped folded plate 6 is fixedly connected to the surface of the rotating shaft 11, and a sealing piece is designed at the joint of the rotating shaft 11 and the rear wall of the box body 1;
one end of the rotating shaft 11 is rotationally connected with the front inner wall of the box body 1, the other end of the rotating shaft penetrates through the rear wall of the box body 1, the driven wheel 10 is installed at the end part of the rotating shaft 11, the mounting plate 8 is fixedly connected with the rear wall of the box body 1, the driving motor is installed on the surface of the mounting plate 8, the output end of the driving motor is fixedly connected with the center wheel 9, the center wheel 9 is meshed with the rack 7, the driven wheel 10 is meshed with the rack 7, the solid carbon source 4 is filled between the vertical plate 3 and the adjacent partition plate 5, the bottom of the solid carbon source 4 is plugged through the blocking net, and a plurality of first horn holes 601 and second horn holes 604 are respectively formed in two inclined planes of the V-shaped folded plate 6.
According to the invention, the sewage draining mechanism comprises a plurality of movable plates 20 and a plurality of limiting cylinders 21, the plurality of movable plates 20 are arranged in the box body 1, the limiting cylinders 21 are fixedly connected to the bottom end of the movable plates 20, a plurality of arc-shaped grooves 19 are formed in the box body 1, the wall profile of each arc-shaped groove 19 is consistent with the outer profile of each limiting cylinder 21, each limiting cylinder 21 is positioned in each arc-shaped groove 19, a plurality of sewage draining ports are formed in the bottom of each arc-shaped groove 19, a sewage draining interface 18 communicated with the sewage draining port is formed in the bottom of the box body 1, and the sewage draining interfaces 18 are connected with a sewage draining pipe or a sewage draining pool.
According to the invention, a plurality of hanging lugs 26 are respectively arranged on two sides of the movable plate 20, each hanging lug 26 is movably connected with a connecting rod 24, the tail end of each connecting rod 24 is rotatably connected with a movable block 22, a limiting rod 25 is fixedly connected inside a plurality of movable grooves in the box body 1, the movable block 22 is positioned in the movable groove and penetrates through the limiting rod 25, a compression spring 23 is sleeved on the limiting rod 25, the compression spring 23 is positioned on one side, far away from the arc-shaped groove 19, of the surface of the movable block 22, the arc-shaped grooves 19 on the front side and the rear side of the sewage outlet form inclined slopes from far to near, and the arc-shaped groove 19 walls on the front side and the rear side of the sewage outlet form inclined slopes from far to near through the arrangement, so that sewage flowing into the arc-shaped groove 19 can flow to the sewage outlet rapidly along the slopes to be discharged.
When the baffling reactor is used for denitrification in the forward direction, the bottom of the left inclined surface of the V-shaped folded plate 6 is extruded to form a movable plate 20, so that the arc-shaped groove 19 is blocked by the limiting cylinder 21, and the sewage outlet is closed; when the forward denitrification is finished, the V-shaped folded plate 6 is rotated, the movable plate 20 moves upwards under the action of the compression spring 23 due to the loss of extrusion, the arc-shaped groove 19 is opened, the V-shaped folded plate 6 rotates forward to extrude left dirt, the water pressure on the left side of the V-shaped folded plate 6 is increased, the side with high water pressure flows to the side with low water pressure, and the dirt flows into the arc-shaped groove 19 along the water pressure and is discharged from the sewage outlet. The sewage at the bottom of the box body 1 can be discharged while the denitrification direction is adjusted. The operation is more convenient, and the pollution discharge effect is better. Reverse denitrification is also the same.
Example 3:
referring to fig. 1-8, a solid phase denitrification baffling reactor comprises a box body 1 and a cover body 2, wherein the cover body 2 is detachably arranged at the top end of the box body 1, six partition boards 5 are arranged in the box body 1, the interior of the box body 1 is divided into a plurality of areas by the six partition boards 5, each area is provided with a sewage discharging mechanism, six vertical plates 3 are fixedly connected to the surface of the cover body 2, each vertical plate 3 is positioned in the area in the box body 1, a rotating shaft 11 is arranged at the bottom of each vertical plate 3 through a convex block, a V-shaped folded plate 6 is fixedly connected to the surface of the rotating shaft 11, and a sealing piece is designed at the joint of the rotating shaft 11 and the rear wall of the box body 1;
one end of the rotating shaft 11 is rotationally connected with the front inner wall of the box body 1, the other end of the rotating shaft penetrates through the rear wall of the box body 1, the driven wheel 10 is installed at the end part of the rotating shaft 11, the mounting plate 8 is fixedly connected with the rear wall of the box body 1, the driving motor is installed on the surface of the mounting plate 8, the output end of the driving motor is fixedly connected with the center wheel 9, the center wheel 9 is meshed with the rack 7, the driven wheel 10 is meshed with the rack 7, the solid carbon source 4 is filled between the vertical plate 3 and the adjacent partition plate 5, the bottom of the solid carbon source 4 is plugged through the blocking net, and a plurality of first horn holes 601 and second horn holes 604 are respectively formed in two inclined planes of the V-shaped folded plate 6.
In the invention, a first horn hole 601 and a second horn hole 604 are arranged oppositely, a first attached inclined plate 602 and a second attached inclined plate 603 which incline towards the center of the V-shaped folded plate 6 are respectively arranged on opposite sides of two inclined planes of the V-shaped folded plate 6, the first attached inclined plate 602 and the second attached inclined plate 603 incline downwards relatively, the necking ends of the first horn hole 601 and the second horn hole 604 are positioned on one side, close to each other, of the first attached inclined plate 602 and the second attached inclined plate 603, and the necking ends of each layer of the first horn hole 601 and the second horn hole 604 are respectively positioned at the bottom ends of the first attached inclined plate 602 and the second attached inclined plate 603 of the adjacent layer.
In the third embodiment, during the forward denitrification, after the culture tail water passes through the solid carbon source 4, the culture tail water first encounters the vertical inclined plane, the flaring end of the first flared hole 601 on the vertical inclined plane can accelerate the tail water to flow to the inner side of the V-shaped folded plate 6, the first flared hole 601 continuously reduces, on one hand, the speed of the tail water flowing to the inner side of the V-shaped folded plate 6 is accelerated, meanwhile, the flow rate of the tail water flowing to the inner side of the V-shaped folded plate 6 is reduced, and the tail water flowing to the inner side of the V-shaped folded plate 6 first encounters the first attaching inclined plate 602, so that flocculent precipitate is attached and precipitated once; when the tail water after the primary sedimentation flows to the inclined plane of the V-shaped folded plate 6, the second sedimentation inclined plate 603 is firstly encountered, the flocculent sediment is subjected to secondary sedimentation, the tail water after the secondary sedimentation flows to the area above the V-shaped inclined plate from the second horn hole 604, the second horn hole 604 is designed to have a small hole diameter and a large hole diameter, the possibility that the flocculent sediment continuously flows to the upper part of the inclined plane can be avoided, and the tail water after the secondary sedimentation can flow to the upper layer of the inclined plane to enter the next channel.
Example 4:
referring to fig. 1-15, a solid phase denitrification baffling reactor comprises a box body 1 and a cover body 2, wherein the cover body 2 is detachably arranged at the top end of the box body 1, six partition boards 5 are arranged in the box body 1, the interior of the box body 1 is divided into a plurality of areas by the six partition boards 5, each area is provided with a sewage discharging mechanism, six vertical plates 3 are fixedly connected to the surface of the cover body 2, each vertical plate 3 is positioned in the area in the box body 1, a rotating shaft 11 is arranged at the bottom of each vertical plate 3 through a convex block, a V-shaped folded plate 6 is fixedly connected to the surface of the rotating shaft 11, and a sealing piece is designed at the joint of the rotating shaft 11 and the rear wall of the box body 1;
one end of the rotating shaft 11 is rotationally connected with the front inner wall of the box body 1, the other end of the rotating shaft penetrates through the rear wall of the box body 1, the driven wheel 10 is installed at the end part of the rotating shaft 11, the mounting plate 8 is fixedly connected with the rear wall of the box body 1, the driving motor is installed on the surface of the mounting plate 8, the output end of the driving motor is fixedly connected with the center wheel 9, the center wheel 9 is meshed with the rack 7, the driven wheel 10 is meshed with the rack 7, the solid carbon source 4 is filled between the vertical plate 3 and the adjacent partition plate 5, the bottom of the solid carbon source 4 is plugged through the blocking net, and a plurality of first horn holes 601 and second horn holes 604 are respectively formed in two inclined planes of the V-shaped folded plate 6.
In the invention, the sealing element comprises an inner T-shaped cylinder 15 and an outer T-shaped cylinder 12, the horizontal wings of the inner T-shaped cylinder 15 are fixedly connected to the rear inner wall of the box body 1, the rotating shaft 11 penetrates through the vertical cylinder of the inner T-shaped cylinder 15, the horizontal wings of the outer T-shaped cylinder 12 are fixedly connected to the surface of the rotating shaft 11, the vertical pipe 13 arranged on the surface of the outer T-shaped cylinder 12 is positioned at the outer side of the vertical cylinder of the inner T-shaped cylinder 15, the end part of the vertical pipe 13 of the outer T-shaped cylinder 12 extends along the length direction of the vertical cylinder of the inner T-shaped cylinder 15 in an S-shaped curve, the end part of the S-shaped curve protrudes out of the end part of the vertical cylinder of the inner T-shaped cylinder 15, an inward-shaped rubber ring 14 is arranged between the side wall of the S-shaped curve and the end part of the vertical cylinder of the inner T-shaped cylinder 15, the movable end of the rubber ring 14 is attached to the end part of the vertical cylinder of the inner T-shaped cylinder 15, the outer wall of the rubber ring 14 is fixedly connected with the end part of the S-shaped curve of the outer T-shaped cylinder 12, and the inner wall of the vertical cylinder of the inner T-shaped cylinder 15 is attached.
The culture tail water in the box body 1 flows from the cylinder hole of the inner T-shaped cylinder 15 to the space between the inner T-shaped cylinder 15 and the outer T-shaped cylinder 12, but due to the limit of the rubber ring 14, the culture tail water flows into the S-shaped curve cylinder with larger holes, the S-shaped curve is a loop formed by bending the outer T-shaped cylinder 12 back and forth and the side wall of the rotating shaft 11, so that the culture tail water flowing between the inner T-shaped cylinder 15 and the outer T-shaped cylinder 12 flows back into the cylinder hole of the inner T-shaped cylinder 15, thereby realizing effective sealing; meanwhile, the inner T-shaped cylinder 15 and the outer T-shaped cylinder 12 are not in direct contact or connection, so that the resistance of the rotation shaft 11 is not increased.
In order to reduce the friction between the side wall of the vertical pipe 13 of the outer T-shaped barrel 12 and the rear wall of the box body 1, balls are embedded in the wall of the rear wall and are in rolling contact with the vertical pipe 13 of the outer T-shaped barrel 12.
The solid phase denitrification baffling reactor designed by the invention can be applied to a denitrification treatment system, and the denitrification treatment system can also comprise an aerobic bioreactor, a dephosphorization and desulfurization reaction tank, a flocculation sedimentation tank and the like when in actual use.
The solid phase denitrification baffling reactor designed by the invention can be applied to a low carbon nitrogen ratio wastewater or sewage treatment system, and the low carbon nitrogen ratio wastewater or sewage treatment system can also comprise a coagulating sedimentation tank, an acid-base neutralization tank, a hydrolytic acidification tank, an aerobic tank, an anoxic tank and the like when in actual use.
Working principle:
s1, sequentially filling corresponding solid carbon sources 4 into a first channel, a second channel, a third channel, a fourth channel, a fifth channel, a sixth channel and a seventh channel, wherein the solid carbon sources 4 filled in the first channel and the second channel are corncob and PCL, the corncob and the PCL are mixed and filled according to a mass ratio of 1:1-3, the solid carbon sources 4 filled in the third channel, the fourth channel and the fifth channel are PCL, and the solid carbon sources 4 filled in the sixth channel and the seventh channel are carbon ceramsites;
s2, an operator opens the water inlet 16, and the culture tail water sequentially passes through the first channel, the V-shaped folded plate 6, the second channel, the V-shaped folded plate 6, the third channel, the V-shaped folded plate 6, the fourth channel, the V-shaped folded plate 6, the fifth channel, the V-shaped folded plate 6, the sixth channel, the V-shaped folded plate 6 and the seventh channel to be discharged from the water outlet 17, so that complete forward denitrification is realized;
s3, starting a driving motor, wherein when the driving motor drives the central wheel 9 to rotate, under the cooperation of the sliding groove 801 and the limiting block 701, the rack 7 moves, the driven wheel 10 drives the rotating shaft 11 to rotate, so that the rotating shaft 11 drives the V-shaped folded plate 6 to rotate positively, the left side plate of the V-shaped folded plate 6 rotates from a vertical state to an inclined state, at the moment, the water inlet 16 and the water outlet 17 are exchanged, water enters from the original water outlet 17, the original water inlet 16 is drained, and the cultivation tail water sequentially passes through a seventh channel, the V-shaped folded plate 6, a sixth channel, the V-shaped folded plate 6, a fifth channel, the V-shaped folded plate 6, a fourth channel, the V-shaped folded plate 6, a third channel, the V-shaped folded plate 6, a second channel, the V-shaped folded plate 6 and the first channel to be drained from the water inlet 16, so that reverse denitrification is completed;
s4, when the V-shaped folded plate 6 is rotated in the process of S3, the residual corncob in the first channel and the second channel is required to be cleaned, new corncob and PCL are added, and PCL in the third channel, the fourth channel and the fifth channel is supplemented for microorganisms to continue film growth;
s5, when the baffle inverter is used for denitrification in the forward direction, the bottom of the left side plate of the V-shaped folded plate 6 presses the movable plate 20, so that the limiting cylinder 21 blocks the arc-shaped groove 19, and the sewage outlet is closed; when the forward denitrification is finished, the V-shaped folded plate 6 is rotated, the movable plate 20 moves upwards under the action of the compression spring 23 due to the loss of extrusion, the limiting groove is opened, the V-shaped folded plate 6 rotates forward to extrude left dirt, the water pressure on the left side of the V-shaped folded plate 6 is increased, the side with high water pressure flows to the side with low water pressure, and the dirt flows into the arc-shaped groove 19 along the water pressure and is discharged from the sewage outlet. The sewage at the bottom of the box body 1 can be discharged while the denitrification direction is adjusted. The operation is more convenient, the pollution discharge effect is better, and the reverse denitrification is also realized;
s6, when in forward denitrification, after the culture tail water passes through the solid carbon source, the vertical inclined plane of the V-shaped folded plate 6 is firstly encountered, the flaring end of the first horn hole 601 on the vertical inclined plane can accelerate the tail water to flow to the inner side of the V-shaped folded plate 6, the first horn hole 601 is continuously reduced, on one hand, the speed of the tail water flowing to the inner side of the V-shaped folded plate 6 is accelerated, meanwhile, the flow rate of the tail water flowing to the inner side of the V-shaped folded plate 6 is reduced, the first attaching inclined plate 602 is firstly encountered by the tail water flowing to the inner side of the V-shaped folded plate 6, the flocculent precipitate is subjected to primary attaching precipitation, when the tail water after the primary attaching precipitation flows to the inclined plane of the V-shaped folded plate 6, the second attaching inclined plate 603 is firstly encountered by the flocculent precipitate, the tail water after the secondary attaching precipitation flows to the area above the V-shaped folded plate 6 from the second horn hole 604, the possibility that the flocculent precipitate continuously flows to the upper side of the V-shaped folded plate 6 can be stopped by the design of small aperture after the second horn hole 604, and meanwhile, the flocculent precipitate can be enabled to enter the next inclined plane of the V-shaped folded plate 6 after the secondary attaching precipitation.
The present invention is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present invention and the inventive concept thereof, can be replaced or changed within the scope of the present invention.
Claims (5)
1. The utility model provides a solid phase denitrification baffling reactor, includes box (1) and lid (2), its characterized in that, lid (2) demountable installation is in box (1) top, box (1) inside is equipped with six baffles (5), six baffle (5) divide into a plurality of regions with box (1) inside, and every region all is provided with blowdown mechanism, lid (2) surface fixedly connected with six riser (3), and every riser (3) all are located the region of box (1) inside, pivot (11) are installed through the lug in riser (3) bottom, and pivot (11) surface fixedly connected with V type folded plate (6), pivot (11) and box (1) back wall junction design have the sealing member;
one end of the rotating shaft (11) is rotationally connected with the front inner wall of the box body (1), the other end of the rotating shaft penetrates through the rear wall of the box body (1), a driven wheel (10) is mounted at the end part of the rotating shaft (11), a mounting plate (8) is fixedly connected with the rear wall of the box body (1), a driving motor is mounted on the surface of the mounting plate (8), a central wheel (9) is fixedly connected with the output end of the driving motor, a rack (7) is meshed on the central wheel (9), the driven wheel (10) is meshed with the rack (7) mutually, a solid carbon source (4) is filled between the vertical plate (3) and an adjacent partition plate (5), the bottom of the solid carbon source (4) is plugged through a blocking net, and a plurality of first horn holes (601) and second horn holes (604) are respectively formed in two inclined planes of the V-shaped folded plate (6).
The separator (5) divides the interior of the box body (1) into seven channels, a first channel, a second channel, a third channel, a fourth channel, a fifth channel, a sixth channel and a seventh channel are sequentially arranged from left to right, a water inlet (16) is formed in the top of the first channel, a water outlet (17) is formed in the top of the seventh channel, solid carbon sources (4) are filled in the first channel, the second channel, the third channel, the fourth channel, the fifth channel, the sixth channel and the seventh channel, the solid carbon sources (4) filled in the first channel and the second channel are corncobs and polycaprolactone, the solid carbon sources (4) filled in the third channel, the fourth channel and the fifth channel are polycaprolactone, and the solid carbon sources (4) filled in the sixth channel and the seventh channel are carbon ceramsites;
the sewage disposal mechanism comprises a plurality of movable plates (20) and a plurality of limiting cylinders (21), wherein the movable plates (20) are arranged inside a box body (1), the limiting cylinders (21) are fixedly connected to the bottom ends of the movable plates (20), a plurality of arc-shaped grooves (19) are formed in the box body (1), the wall outline of each arc-shaped groove (19) is consistent with the outer outline of each limiting cylinder (21), each limiting cylinder (21) is positioned in each arc-shaped groove (19), a plurality of sewage disposal outlets are formed in the bottoms of the arc-shaped grooves (19), sewage disposal interfaces (18) communicated with the sewage disposal outlets are formed in the bottoms of the box body (1), and the sewage disposal interfaces (18) are connected with a sewage disposal pipe or a sewage disposal pond;
a plurality of hanging lugs (26) are respectively arranged on two sides of the movable plate (20), each hanging lug (26) is movably connected with a connecting rod (24), the tail end of each connecting rod (24) is rotatably connected with a movable block (22), a limiting rod (25) is fixedly connected inside a plurality of movable grooves inside the box body (1), each movable block (22) is positioned in each movable groove and penetrates through each limiting rod (25), a compression spring (23) is sleeved on each limiting rod (25), and each compression spring (23) is positioned on one side, far away from the corresponding arc groove (19), of the surface of each movable block (22);
the first horn hole (601) and the second horn hole (604) are arranged oppositely, the opposite sides of the two inclined planes of the V-shaped folded plate (6) are respectively provided with a first attached inclined plate (602) and a second attached inclined plate (603) which incline towards the center of the V-shaped folded plate (6), the first attached inclined plate (602) and the second attached inclined plate (603) incline downwards relatively, the necking ends of the first horn hole (601) and the second horn hole (604) are positioned at one side, close to each other, of the first attached inclined plate (602) and the second attached inclined plate (603), and the necking ends of each layer of the first horn hole (601) and the second horn hole (604) are positioned at the bottom ends of the first attached inclined plate (602) and the second attached inclined plate (603) of the adjacent layers respectively;
according to the concentration of discharge and nitrate of intaking, after a period of time, adjust V type folded plate (6) incline direction, former water inlet (16) play water, former delivery port (17) are intake, accomplish two-way denitrification process, when forward denitrification, the right side inclined plane of V type folded plate (6) is inclined downwards right, and left side inclined plane is perpendicular with box (1) bottom surface, and realize shutoff to its left side passageway, when reverse denitrification, the left side inclined plane of V type folded plate (6) is inclined downwards left, right side inclined plane is perpendicular with box (1) bottom surface, when the forward denitrification of baffling reactor, left side inclined plane bottom extrusion fly leaf (20) of V type folded plate (6), make spacing section of thick bamboo (21) jam arc wall (19), the drain closes, when forward denitrification is finished, rotatory V type folded plate (6), fly leaf (20) are because of losing the extrusion, upwards move under the effect of compression spring (23), arc wall (19) are opened.
2. The solid phase denitrification baffling reactor according to claim 1, wherein a chute (801) is formed in the side wall of the mounting plate (8), a plurality of guide rods are arranged on the back surface of the rack (7), a limiting block (701) is fixedly connected to the end portion of the guide rod, the limiting block (701) is slidably connected to the inside of the chute (801), balls are embedded in the top and the bottom of the inside of the chute (801), and the balls are in rolling connection with the limiting block (701).
3. The solid phase denitrification baffling reactor according to claim 2, wherein the central wheel (9) and the driven wheel (10) are respectively positioned at two sides of the rack (7), a gap is reserved between the top end of the partition board (5) and the cover body (2), a net surface is arranged between the partition board (5) and the cover body (2), and the net surface is manufactured by adopting a steel wire net.
4. A solid phase denitrification baffled reactor according to claim 3, wherein the arc-shaped grooves (19) on the front and rear sides of the sewage outlet form an inclined slope from far to near.
5. The solid phase denitrification baffling reactor according to claim 4, wherein the sealing member comprises an inner T-shaped cylinder (15) and an outer T-shaped cylinder (12), the horizontal wings of the inner T-shaped cylinder (15) are fixedly connected to the rear inner wall of the box body (1), the rotating shaft (11) penetrates through the vertical cylinder of the inner T-shaped cylinder (15), the horizontal wings of the outer T-shaped cylinder (12) are fixedly connected to the surface of the rotating shaft (11), the vertical pipe (13) arranged on the surface of the outer T-shaped cylinder (12) is positioned on the outer side of the vertical cylinder of the inner T-shaped cylinder (15), the end part of the vertical pipe (13) of the outer T-shaped cylinder (12) extends in an S-shaped curve along the length direction of the vertical cylinder of the inner T-shaped cylinder (15), the end part of the S-shaped curve protrudes out of the vertical cylinder end part of the inner T-shaped cylinder (15), an inward rubber ring (14) is arranged between the side wall of the S-shaped curve and the end part of the vertical cylinder of the inner T-shaped cylinder (15), the movable end of the rubber ring (14) is attached to the inner T-shaped cylinder (14), and the end part of the rubber ring (14) is attached to the end part of the inner T-shaped cylinder (14) of the inner T-shaped cylinder (15).
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