CN208717121U - A kind of deep filter denitrification mentions mark filter tank - Google Patents

Abstract

The utility model relates to sewage treatment technology fields, and in particular to a kind of deep filter denitrification mentions mark filter tank, including filter tank ontology, and the filter tank ontology includes flocculant mixing tank, sedimentation basin and deep filter denitrification pond；It is successively arranged water-distributing device, hanging layer, hard siliceous layer of sand, water distribution gas distribution filter block and outlet pipe from top to bottom in the deep filter denitrification pond；The flocculant mixing tank, the sedimentation basin and the deep filter denitrification pond are sequentially communicated by the direction of sewage treatment process and are distributed setting in the horizontal plane, the flocculant mixing tank, the sedimentation basin and the deep filter denitrification pond are sequentially communicated by the direction of sewage treatment process and are distributed setting in the horizontal plane, the water body flow of the water-distributing device and captation it is contrary, the deep filter denitrification of the utility model, which mentions mark filter tank, to reduce occupied area, rationally using on the basis of space, successively carry out retention suspended matter, chemical tiny flocculation dephosphorization and denitrification for Removing Nitrogen, it avoids interfering with each other.

Description

A kind of deep filter denitrification mentions mark filter tank

Technical field

The utility model relates to sewage treatment technology fields, and in particular to a kind of deep filter denitrification mentions mark filter tank.

Background technique

With the fast development of economic society and the raising of living standards of the people, people have the comfort level of living environment Higher requirement also has higher standard for sewage disposal plant effluent comprehensive discharge, and Some Domestic area will be at sewage The discharge standard of reason factory is improved by the level-one B of " urban wastewater treatment firm pollutant emission standard " (GB18918-2002) to level-one A standard is improved from level-one A standard to surface water body standard or special emission limit standard, this to the nitrogen of sewage treatment plant, The removal of phosphorus is put forward higher requirements.

Deep filter denitrification pond is the processing unit for integrating filtering dephosphorization and denitrification denitrogenation, is advanced treatment of wastewater work The core process equipment of skill, the process equipment are the preferred equipment of sewage treatment plant's upgrading, realization regeneration, for example, Chinese patent literature CN106477719A discloses a kind of Integral synchronous dephosphorization denitrification deep-bed filter, collection chemical dephosphorization and anti- Nitrification is denitrogenated in one, synchronous denitrification dephosphorizing, has occupied area small, the advantage that head loss is small, easy to operate etc..

But because filter tank total depth is higher, Practical Project construction and application difficulty it is larger, and need by booster pump come Water level is promoted, water process energy consumption is increased, since dephosphorization precipitating carries out simultaneously with denitrification for Removing Nitrogen process, can not only be generated mutually dry It disturbs, influences denitrification effect, and filter tank bottom generates a large amount of sludge in dephosphorization precipitating, easily leads to filter material surface blocking, filter Speed reduces, and then influences the wastewater treatment efficiency of filter tank entirety.

Utility model content

Therefore, the technical problem to be solved by the present invention is to overcoming denitrification filter pool depth in the prior art high and The problem of dephosphorization precipitating and denitrification for Removing Nitrogen process are interfered with each other simultaneously and reduce wastewater treatment efficiency, provides a kind of depth Filter denitrification mentions mark filter tank, can reduce occupied area, rationally using on the basis of space, successively carry out retention suspended matter, Chemical tiny flocculation dephosphorization and denitrification for Removing Nitrogen, avoid interfering with each other.

In order to solve the above-mentioned technical problem, the utility model provides a kind of deep filter denitrification and mentions mark filter tank, including filter tank Ontology, the filter tank ontology include:

Flocculant mixing tank is provided with the flocculant feed inlet of addition flocculation medicament on the flocculant mixing tank；

Sedimentation basin is successively arranged captation, inclined tube, settled layer sum aggregate mud device in the sedimentation basin from top to bottom；

Deep filter denitrification pond is successively arranged water-distributing device, hanging layer, hard siliceous in the deep filter denitrification pond from top to bottom Layer of sand, water distribution gas distribution filter block and outlet pipe；

The direction of sewage treatment process is pressed in the flocculant mixing tank, the sedimentation basin and the deep filter denitrification pond It is sequentially communicated and is distributed setting in the horizontal plane.

The flocculant mixing tank and the sedimentation basin are end to end and parallel along the deep filter denitrification pond extending direction It is arranged in the deep filter denitrification pond, the sedimentation basin is located at the side of the flocculant mixing tank and mixes with the flocculant Parallel side-by-side is arranged in the horizontal direction in pond, and the deep filter denitrification pond is located at the same of the flocculant mixing tank and the sedimentation basin Side and with the flocculant mixing tank and the sedimentation basin in the horizontal direction parallel side-by-side arrange, the water-distributing device and collection The water body flow of water installations it is contrary.

The water outlet of the flocculant mixing tank is connected with the settled layer, the water-distributing device and the captation It is connected.

The periphery of the filter tank ontology is the square frame being made of several stainless (steel) wire panels, the stainless (steel) wire panel Including several grid-shaped staggered stainless steel square tubes and sealing be filled in the stainless steel square tube of adjacent two it Between cavity tile-type plate.

The inside of the filter tank ontology is additionally provided with partition, and the partition is set to the flocculant mixing tank and sinks with described Between the pond of shallow lake, the partition is stainless (steel) wire panel, and the water outlet of the flocculant mixing tank is opened in stainless (steel) wire panel.

Further include:

Carbon source throwing device, the carbon source throwing device are located at the side in the deep filter denitrification pond, and the carbon source adds Device includes:

Air blower, the air blower are set to the top in the deep filter denitrification pond；

Carbon source gas distribution pipe, carbon source gas distribution pipe one end are connected with the air blower, and it is anti-that the other end penetrates the deep filter The inside of nitrification tank is simultaneously connected with the water distribution gas distribution filter block.

The water distribution gas distribution filter block includes conical internal cavity, two side cavities and between conical internal cavity and two side cavities The side close to hard siliceous layer of sand of partition, the water distribution gas distribution filter block is equipped with multiple gas distributions being connected with carbon source gas distribution pipe Hole.

The area of the conical internal cavity is greater than twice of the sum of each described gas distribution hole area.

The captation includes main catch basin and at least one branch catch basin being connected with main catch basin, the water distribution Device includes sequentially connected compensating groove and at least one cloth sink being connected with the compensating groove, the compensating groove and main collection Sink is connected.

The collection mud device includes several mud-collecting slots, the branch sludge pipe being connected with mud-collecting slot and equal with each sludge pipe The main sludge pipe being connected is provided with mud valve on each branch sludge pipe.

The flocculant mixing tank further include:

One end of system water inlet pipe, the system water inlet pipe is connected with water inlet, the other end of the system water inlet pipe That protrudes into flocculant mixing tank is internally provided with water outlet:

Blender, one end that the blender protrudes into the flocculant are provided with agitating paddle, the system water inlet pipe Water outlet is arranged towards the direction of agitating paddle.

In the flocculant mixing tank further include:

Guide shell, the guide shell are sheathed on outside the agitating paddle, and the both ends that the guide shell is located at top and bottom are equal The diameter of opening setting, the guide shell bottom opening is greater than open-topped diameter.

Technical solutions of the utility model have the advantages that

1. deep filter denitrification provided by the utility model mentions mark filter tank, continuous into filter tank ontology by flocculant mixing tank Flocculant is added, so that being conveyed after mixing first in flocculant mixing tank with flocculant from the sewage that water inlet flows into To sedimentation basin, by sedimentation basin in the sewage for being mixed into flocculant suspended matter, solidfied material and formed under the action of flocculant Flocculate carry out flocculating setting, chemical dephosphorization processing, by deep denitrification denitrogenation pond of filtering to chemical dephosphorization treated sewage Denitrification denitrogenation processing is carried out, to play filtering retention suspended matter, chemical tiny flocculation dephosphorization and biological denitrification denitrogenation simultaneously Effect, improve water purification effluent quality and productivity, and by sedimentation basin in advance to suspended matter, solidfied material and the wadding in sewage Condensate carries out retention processing, greatly reduces the yield of sludge in deep filter denitrification pond, improves hard siliceous in denitrification pond The case where layer of sand and water distribution gas distribution filter block block, reduces the frequency of backwash；And in advance and sewage by flocculant Mixing also improves the sludge creation amount of sedimentation basin, further reduced the burden and backwash frequency in denitrification pond, in addition, institute It states flocculant mixing tank and the sedimentation basin is arranged in parallel in the horizontal direction, denitrification pond and the flocculant mixing tank and institute It states sedimentation basin to be arranged in parallel in the horizontal direction, the water-distributing device is contrary with the water body flow of captation, so that cloth The water outlet of water installations connects with the water inlet end of captation, while reducing filter tank depth, rationally utilizes space size, reduces Occupied area.

2. deep filter denitrification provided by the utility model mentions mark filter tank, rectangular by being made of several stainless (steel) wire panels Frame structure, instead of traditional concrete structure, the stainless (steel) wire panel include it is several it is grid-shaped be staggered it is stainless Steel square tube and sealing are filled in the tile-type plate of cavity between two adjacent stainless steel tube square tubes, not only shorten the construction period, Difficulty of construction and cost are reduced, and increases the structural strength in filter tank, is prolonged the service life；It is mixed by the flocculant simultaneously It closes and is provided with partition between pond and the sedimentation basin, partition is stainless (steel) wire panel, can further increase the strong of general frame Degree and fastness, and convenient for being transformed according to specific circumstances or secondary transformation.

3. deep filter denitrification provided by the utility model mentions mark filter tank, there is main catch basin by what sedimentation basin top was arranged With the captation of several catch basins, can sufficiently to sedimentation basin, treated that sewage is collected, by with compensating groove With the water-distributing device of several cloth sinks, compensating groove is connected with main catch basin, and sedimentation basin treated sewage passes through main catch basin It is carried out in cloth sink through compensating groove, water distribution uniformity in denitrification pond is filtered to deep by cloth sink, improves water treatment efficiency.

4. deep filter denitrification provided by the utility model mentions mark filter tank, by the flocculation for being equipped with system water inlet pipe and blender Mixing pit, flocculant and sewage are sufficiently mixed by the stirring action of agitating paddle；In addition, downward from guide shell top opening Flowing, the sewage and flocculant for flowing into guide shell under the action of the centrifugal force that agitating paddle generates, inside guide shell on to Lower flowing is flowed, then again from guide shell top opening from bottom to top after the outflow of guide shell bottom opening outside guide shell It flows into guide shell, iterative cycles, to further improve the mixing uniformity of sewage and flocculant.

5. deep filter denitrification provided by the utility model mentions mark filter tank, vulnerable to carbon source when due to the draining of water distribution gas distribution filter block Influence of the gas distribution pipe through water distribution gas distribution filter block gas distribution into deep filter denitrification pond, it is empty by the taper being arranged on water distribution gas distribution filter block The area of chamber and the conical internal cavity is greater than twice of the sum of each described gas distribution hole area, reduces water distribution gas distribution filter block In air-flow to the obstruction of water body flow, gas distribution while realizing draining, to improve the production efficiency in deep filter denitrification pond.

Detailed description of the invention

It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art Under the premise of labour, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is that the deep filter denitrification of the utility model mentions the structural schematic diagram in mark filter tank；

Fig. 2 is the sectional view of B-B in Fig. 1；

Fig. 3 is the sectional view of A-A in Fig. 1；

Fig. 4 is the sectional view of C-C in Fig. 1；

Fig. 5 is the compensating groove of the utility model and the structural schematic diagram of cloth sink and main catch basin and branch catch basin；

Fig. 6 is the stainless steel square tube of the utility model and the structural schematic diagram of tile-type plate；

Fig. 7 is the top view of the water distribution gas distribution filter block of the utility model；

Fig. 8 is the right view of the water distribution gas distribution filter block of the utility model.

Description of symbols:

1, deep filter denitrification pond；11, compensating groove；12, cloth sink；13, hanging layer；14, hard siliceous layer of sand；141, foam Layer；15, water distribution gas distribution filter block；151, conical internal cavity；152, qi-emitting hole；16, outlet pipe；2, sedimentation basin；21, main catch basin；22, Branch catch basin；23, mud-collecting slot；24, main sludge pipe；25, branch sludge pipe；251, mud valve；26, inclined tube；27, settled layer；3, it wads a quilt with cotton Solidifying agent mixing pit；31, blender；32, agitating paddle；33, system water inlet pipe；34, guide shell；4, square frame；41, upper storage reservoir building Ladder；42, pond face guardrail；43, stainless steel square tube；44, tile-type plate；45, partition；5, air blower；51, carbon source gas distribution pipe；52, deslagging Pipe.

Specific embodiment

The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical Novel protected range.

In addition, as long as technical characteristic involved in the utility model different embodiments disclosed below is each other Not constituting conflict can be combined with each other.

Deep filter denitrification as shown in Figure 1 mentions a kind of specific embodiment in mark filter tank, including filter tank ontology, the filter tank Ontology includes the flocculant mixing tank 3 being sequentially communicated along the direction of sewage treatment process, sedimentation basin 2 and deep filter denitrification pond 1；

As shown in Fig. 2, being provided with water inlet, flocculant feed inlet and water outlet on the flocculant mixing tank 3；It is described heavy Captation, inclined tube 26,27 sum aggregate mud device of settled layer are successively arranged in shallow lake pond 2 from top to bottom, the flocculant mixing tank 3 Water outlet is connected with the settled layer 27；

As shown in figure 3, water-distributing device, hanging layer 13, hard siliceous is successively arranged in the deep filter denitrification pond 1 from top to bottom Layer of sand 14, water distribution gas distribution filter block 15 and outlet pipe 16, the water-distributing device are connected with the captation.

Wherein, for flocculant to be added into filter tank ontology, the sewage flowed into from water inlet exists the flocculant mixing tank 3 Sewage and flocculant are delivered to sedimentation basin 2 after mixing in flocculant mixing tank 3, sedimentation basin 2 is used for being mixed into flocculant Sewage carry out flocculating setting, by the effect of inclined tube 26 in sedimentation basin 2, suspended matter, solidfied material in sewage or with flocculation Agent acts on the flocculate to be formed formation sludge and separates at inclined tube 26 with liquid, and sludge enters collection mud device, dirt after precipitation Water is delivered to the water-distributing device in deep filter denitrification pond 1 through captation again, then successively fills through the water distribution in deep filter denitrification pond 1 Set, hanging layer 13, hard siliceous layer of sand 14, water distribution gas distribution filter block 15, the nitrate nitrogen in sewage by denitrifying bacterium be transformed into nitrogen from Thoroughly removed in sewage, purified sewage from outlet pipe 16 flow out, thus play flocculating setting oil removal, chemical dephosphorization and The effect of biological denitrification denitrogenation.

As shown in Figure 1, the sedimentation basin 2 is located at the right side of the flocculant mixing tank 3, and the flocculant mixing tank 3 are arranged with the parallel side-by-side in the width direction of the sedimentation basin 2 along its length, and the deep filter denitrification pond 1 is located at the wadding The side of solidifying agent mixing pit 3 and the sedimentation basin 2 and with the flocculant mixing tank 3 and the sedimentation basin 2 in the horizontal direction Parallel side-by-side arrangement, and the water-distributing device is contrary with the water body flow of captation, so that the water outlet of water-distributing device End connects with the water inlet end of captation, so that the water outlet of water-distributing device connects with the water inlet end of captation, reduces filter tank While depth, space size is rationally utilized, reduces occupied area.

In order to accelerate water collection efficiency, sewage treating efficiency is improved, as shown in figure 5, the captation includes main catch basin 21 and at least one branch catch basin 22 for being connected with main catch basin 21, the water-distributing device includes sequentially connected compensating groove 11 The cloth sink 12 being connected at least one with the compensating groove 11, the compensating groove 11 are connected with main catch basin 21.

The case where in order to accelerate the discharge of sludge, avoid the occurrence of sludge blockage, the collection mud device includes several mud-collecting slots 23, the branch sludge pipe 25 being connected with mud-collecting slot 23 and the main sludge pipe 24, Ge Gesuo being connected with each sludge pipe 25 It states and is provided with mud valve 251 on branch sludge pipe 25.

As shown in Fig. 2, the flocculant mixing tank 3 further include:

One end of system water inlet pipe 33, the system water inlet pipe 33 is connected with water inlet, the system water inlet pipe 33 What the other end protruded into flocculant mixing tank 3 is internally provided with water outlet；

Blender 31, one end that the blender 31 protrudes into the flocculant are provided with agitating paddle 32, the system into The water outlet of water pipe 33 is arranged towards the direction of agitating paddle 32.Flocculant and sewage are filled by the stirring action of agitating paddle 32 Divide mixing, promotes the flocculating setting in sedimentation basin 2 of the suspended matter in sewage.

Guide shell 34, the guide shell 34 are sheathed on outside the agitating paddle 32, and the guide shell 34 is located at top and bottom Both ends be open setting, the diameter of 34 bottom opening of guide shell is greater than open-topped diameter.Flow into guide shell 34 Sewage and flocculant are flowed from top to bottom inside guide shell 34 through guide shell under the action of the centrifugal force that agitating paddle 32 generates After the outflow of 34 bottom openings, flowed from bottom to top outside guide shell 34, then back flow back into water conservancy diversion from 34 top opening of guide shell In cylinder 34, iterative cycles, to further improve the mixing uniformity of sewage and flocculant.

In order to shorten the construction period, reduce difficulty of construction and cost, the structural strength and fastness of filter tank ontology, such as Fig. 1 are improved Shown in 6, the periphery of the filter tank ontology is the square frame 4 being made of several stainless (steel) wire panels, the Stainless steel mesh Plate includes that several grid-shaped staggered stainless steel square tubes 43 and sealing are filled in two adjacent stainless steel squares The tile-type plate 44 of cavity between pipe 43.In addition, the inside of the filter tank ontology is additionally provided with partition 45 (as shown in Figure 2), it is described Partition 45 is set between the flocculant mixing tank 3 and the sedimentation basin 2, and the partition 45 is stainless (steel) wire panel, described The water outlet of flocculant mixing tank 3 is set in stainless (steel) wire panel.Between the stainless steel square tube 43 and tile-type plate 44 and The mode that welding can be used between adjacent stainless steel square tube 43 is fixed.

In addition, being convenient to operator as shown in Fig. 2, the side of the square frame 4 is also tiltedly installed with upper storage reservoir stair 41 Member monitors sewage treatment situation upstairs, and the top perimeter of the filter tank ontology is provided with pond face guardrail 42, carries out to operator Protection.

As shown in figure 4, the deep filter denitrification pond 1 further includes carbon source throwing device, the carbon source throwing device is located at institute The side in deep filter denitrification pond 1 is stated, the carbon source throwing device includes:

Air blower 5, the air blower 5 are set to the top in the deep filter denitrification pond 1；

Carbon source gas distribution pipe 51, described 51 one end of carbon source gas distribution pipe are connected with the air blower 5, and the other end penetrates the depth It filters the inside in denitrification pond 1 and is connected with the water distribution gas distribution filter block 15.

As shown in FIG. 7 and 8, the water distribution gas distribution filter block 15 includes conical internal cavity 151, two side cavities and is located in taper Partition 45 between chamber 151 and two side cavities, the side close to hard siliceous layer of sand 14 of the water distribution gas distribution filter block 15 are equipped with more A qi-emitting hole 152 being connected with carbon source gas distribution pipe 51.Carbon source is under the action of air blower 5 by carbon source holding vessel through carbon source gas distribution Pipe 51 is delivered to water distribution gas distribution filter block 15, equably filters denitrification pond 1 to deep by the qi-emitting hole 152 on water distribution gas distribution filter block 15 Gas distribution.

The area of the conical internal cavity 151 is greater than twice of the sum of each described 152 area of qi-emitting hole, reduces with water cloth Obstruction of the air-flow to water body flow in air filter brick 15, gas distribution while realizing draining, to improve deep filter denitrification pond 1 Production efficiency.

As shown in figure 3, the deep filter denitrification pond 1, which is located at, is provided with deslagging close to the side of the flocculant mixing tank 3 Pipe 52, the scum pipe 52 are connected to the hanging layer 13, when the scum pipe 52 is backwashed for the deep filter denitrification pond 1 The waste liquid discharge that recoil is generated.

It is additionally provided with froth bed 141 between the hard siliceous layer of sand 14 and water distribution gas distribution filter block 15, is used for hard siliceous sand Layer 14 and water distribution gas distribution filter block 15 separate, and prevent the particle obstruction water distribution gas distribution filter block 15 in hard siliceous layer of sand 14.

The bottom of the water distribution gas distribution filter block 15 is also connected to by backwash air inlet pipe and backwash water inlet pipe, the backwash air inlet pipe It is connected to the air blower 5, the backwash water inlet pipe is connected with backwash pump, the system outlet pipe 16, backwash air inlet pipe Valve is provided with on backwash water inlet pipe.

Specifically used process: nitrogenous phosphorous sewage to be processed is by system water inlet pipe 33, into flocculant mixing tank 3, flocculant is added into flocculant mixing tank 3 at the same time, under the cooperation of blender 31 and guide shell 34, is uniformly mixed, It is delivered to the hanging layer 13 of sedimentation basin 2 through water outlet, moves downward through the work of inclined tube 26 in sedimentation basin 2 under the effect of gravity With suspended matter, solidfied material in sewage or acting on the flocculate to be formed with flocculant and be deposited at inclined tube 26, sludge enters collection Mud device is delivered to the uniform cloth of water-distributing device in deep filter denitrification pond 1 through flocculation sedimentation treated sewage through captation again Water, then successively through in deep filter denitrification pond 1 water-distributing device, hanging layer 13, hard siliceous layer of sand 14, at water distribution gas distribution filter block 15 After reason, hard siliceous layer of sand 14 there is strong suction-operated to be adsorbed in sewage on the top of filter bed the ammonia nitrogen in sewage Ammonia nitrogen is under aerobic condition, since nitrifier is converted to nitrate nitrogen；In the middle and lower part of filter bed, in anaerobic condition, sewage Nitrate nitrogen is transformed into nitrogen by denitrifying bacterium, thoroughly removes from sewage.

When organic concentration is not enough to carbon source needed for providing denitrification in sewage, carbon source carbon source throwing device can use Supplementary carbon source completes denitrification denitrogenation.

When the decline of 16 flow velocity of outlet pipe or deep filter denitrification pond 1 block, stop water inlet plus flocculant and benefit Fill carbon source, open the valve on backwash air inlet pipe and backwash water inlet pipe, start the air blower 5 being connect with backwash air inlet pipe and with it is anti- The backwash pump for washing water inlet pipe connection is intake to filter bed and is backwashed；Backwash air and backwash water are from top to bottom to hard siliceous sand Pollutant in layer 14 is rinsed, and what backwash generated is discharged containing dirty sewage by scum pipe 52.

Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or It changes among the protection scope created still in the utility model.

Claims (10)

1. a kind of deep filter denitrification mentions mark filter tank, which is characterized in that including filter tank ontology, the filter tank ontology includes；

Flocculant mixing tank (3) is provided with the flocculant feed inlet of addition flocculation medicament；

Sedimentation basin (2) is successively arranged captation, inclined tube (26), settled layer (27) sum aggregate mud device from top to bottom；

Deep filter denitrification pond (1) is successively arranged water-distributing device from top to bottom, hanging layer (13), hard siliceous layer of sand (14), matches water cloth Air filter brick (15) and outlet pipe (16)；

The flocculant mixing tank (3), the sedimentation basin (2) and deep filter denitrification pond (1) press sewage treatment process It is sequentially communicated and is distributed setting in the horizontal plane.

2. deep filter denitrification according to claim 1 mentions mark filter tank, which is characterized in that the flocculant mixing tank (3) and The sedimentation basin (2) is end to end along described deep filter denitrification pond (1) extending direction, and is parallel to the deep filter denitrification pond (1) it is arranged.

3. deep filter denitrification according to claim 2 mentions mark filter tank, which is characterized in that the flocculant mixing tank (3) Water outlet is connected with the settled layer (27)；The water-distributing device is connected with the captation.

4. deep filter denitrification according to claim 2 mentions mark filter tank, which is characterized in that serve as reasons the periphery of the filter tank ontology The square frame (4) that several stainless (steel) wire panels are constituted, the stainless (steel) wire panel includes several grid-shaped staggered Stainless steel square tube (43) and sealing are filled in the tile-type plate (44) of cavity between the stainless steel square tube (43) of adjacent two.

5. deep filter denitrification according to claim 4 mentions mark filter tank, which is characterized in that the flocculant mixing tank (3) with It being additionally provided with partition (45) between the sedimentation basin (2), the water outlet of the flocculant mixing tank (3) is opened in the partition, The partition (45) is the stainless (steel) wire panel.

6. deep filter denitrification according to any one of claims 1-5 mentions mark filter tank, it is characterised in that: further include being located at institute The carbon source throwing device of deep filter denitrification pond (1) side is stated, the carbon source throwing device includes:

Air blower (5) is set to the top of deep filter denitrification pond (1)；

Carbon source gas distribution pipe (51), one end are connected with the air blower (5), and the other end penetrates deep filter denitrification pond (1) Inside is simultaneously connected with the water distribution gas distribution filter block (15).

7. deep filter denitrification according to claim 6 mentions mark filter tank, which is characterized in that water distribution gas distribution filter block (15) packet Conical internal cavity (151), two side cavities and the partition (45) between conical internal cavity (151) and two side cavities are included, it is described to match The side close to the hard siliceous layer of sand (14) of water cloth air filter brick (15) is connected equipped with multiple with the carbon source gas distribution pipe (51) Logical qi-emitting hole (152), the area of the conical internal cavity (151) are greater than twice of the sum of each described qi-emitting hole (152) area.

8. deep filter denitrification according to claim 1 mentions mark filter tank, it is characterised in that: the captation includes that master catchments Slot (21) and at least one branch catch basin (22) being connected with main catch basin (21), the water-distributing device includes sequentially connected Compensating groove (11) and at least one cloth sink (12) being connected with the compensating groove (11), the compensating groove (11) are catchmented with master Slot (21) is connected, and the collection mud device includes several mud-collecting slots (23), the branch sludge pipe (25) being connected with mud-collecting slot (23) With the main sludge pipe (24) being connected with each sludge pipe (25), spoil disposal is provided on each branch sludge pipe (25) Valve (251).

9. deep filter denitrification according to claim 1 mentions mark filter tank, it is characterised in that: the flocculant mixing tank (3) is also Include:

One end of system water inlet pipe (33), the system water inlet pipe (33) is connected with water inlet, the system water inlet pipe (33) The other end protrude into flocculant mixing tank (3) be internally provided with water outlet:

Blender (31), one end that the blender (31) is protruded into the flocculant mixing tank (3) are provided with agitating paddle (32), The water outlet of the system water inlet pipe (33) is arranged towards the direction of agitating paddle (32).

10. deep filter denitrification according to claim 9 mentions mark filter tank, which is characterized in that in the flocculant mixing tank (3) Further include:

Guide shell (34), the guide shell (34) are sheathed on the agitating paddle (32) outside, the guide shell (34) be located at top and The both ends of bottom are open setting, and the diameter of guide shell (34) bottom opening is greater than open-topped diameter.