CN209618991U - A kind of denitrification deep-bed filter structure applied to sewage treatment plant's advanced treating - Google Patents
A kind of denitrification deep-bed filter structure applied to sewage treatment plant's advanced treating Download PDFInfo
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- CN209618991U CN209618991U CN201920058681.5U CN201920058681U CN209618991U CN 209618991 U CN209618991 U CN 209618991U CN 201920058681 U CN201920058681 U CN 201920058681U CN 209618991 U CN209618991 U CN 209618991U
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- 239000010865 sewage Substances 0.000 title claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 124
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 49
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 49
- 238000009826 distribution Methods 0.000 claims abstract description 41
- 239000000463 material Substances 0.000 claims abstract description 25
- 238000011001 backwashing Methods 0.000 claims abstract description 19
- 230000003750 conditioning effect Effects 0.000 claims abstract description 19
- 239000002351 wastewater Substances 0.000 claims description 25
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 16
- 239000004576 sand Substances 0.000 claims description 13
- 238000012856 packing Methods 0.000 claims description 12
- 239000000945 filler Substances 0.000 claims description 8
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 claims description 6
- 235000017281 sodium acetate Nutrition 0.000 claims description 6
- 239000001632 sodium acetate Substances 0.000 claims description 6
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 239000006004 Quartz sand Substances 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 238000001914 filtration Methods 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 16
- 239000000706 filtrate Substances 0.000 description 11
- 239000007789 gas Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 229910052757 nitrogen Inorganic materials 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000012545 processing Methods 0.000 description 7
- 241000196324 Embryophyta Species 0.000 description 5
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 5
- 238000012795 verification Methods 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- 244000025254 Cannabis sativa Species 0.000 description 3
- 229910002651 NO3 Inorganic materials 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000010841 municipal wastewater Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 102000002322 Egg Proteins Human genes 0.000 description 1
- 108010000912 Egg Proteins Proteins 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 241000486406 Trachea Species 0.000 description 1
- 230000010165 autogamy Effects 0.000 description 1
- 230000004071 biological effect Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005574 cross-species transmission Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 210000004681 ovum Anatomy 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Biological Treatment Of Waste Water (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The utility model discloses a kind of denitrification deep-bed filter structures applied to sewage treatment plant's advanced treating, including further include carbon source dosing system and air-water backwashing system by structures and the sequentially connected conditioning tank of pipeline, distribution well, filter tank and clear water reserviors；Carbon source dosing system includes carbon source storage tank, and carbon source adds pipeline one end and connect with carbon source storage tank, another to be connected in conditioning tank, and carbon source adds pipeline and adds tube valve and electromagnetic flowmeter equipped with diaphragm metering pump, carbon source；Filter material layer is equipped in filter tank；Air-water backwashing system includes tracheae and backwash water pipe；Tracheae is open at one end in filter material layer bottom, and the other end connects air feed equipment, is equipped with tracheae electrically operated valve in the middle part of tracheae；It is open at one end in filter material layer bottom to backwash water pipe, the other end connects clear water reserviors with backwash water pipe electrically operated valve by backwash pump.The beneficial effects of the utility model are: integrating filtering, denitrogenation, denitrification ability can be significantly improved, sewage treatment is made to reach higher standard.
Description
Technical field
The utility model relates to water treatment field, specifically a kind of denitrification applied to sewage treatment plant's advanced treating is deep
Bed filter tank structure.
Background technique
With the rapid development of economy, requirement of the government to environmental protection is higher and higher, environmental protection administration is to municipal sewage plant
Effluent criteria be also increasingly stringenter.To adapt to " water prevention and cure of pollution plan " (being commonly called as ten, water) that State Council prints and distributes, each place
Numerous and confused to propose more stringent provincial standard, coastal drug in some provinces municipal sewage plant water outlet is promoted to IV category of grass root's
It is quasi-.The promotion of discharge standard is mainly reflected in the control (requirement of IV class standard of grass root's to TN is≤12mg/L) to TN,
Thus many techniques of municipal wastewater advanced treating are come into being.
Majority sewage treatment plant, China all uses Wastewater Treated by Activated Sludge Process sewage, using it is wide be A/O, A2/ O etc. is passed
System technique, but most of sewage treatment plants all suffer from following problem: carbon source deficiency leads to that denitrification effect is poor, water outlet NO3 -- N concentration
High, COD and NH4 +- N concentration is unstable etc..The water outlet of municipal sewage plant contains a certain amount of nitrogen and phosphorus, directly supplement river
When road, lake, urban landscape water, the risk of water eutrophication can be generated.Therefore, carry out the denitrogenation of municipal wastewater advanced treating
The research of dephosphorization technique has great importance.
Chinese patent literature CN204162504U disclosed a kind of " water system out of denitrification filter pool on 2 8th, 2015
System ", including denitrification filter pool, clear water reserviors, water inlet pipe, outlet pipe, backwash water pipe, backwash tracheae, sewage pipe.Denitrification filter
Pond is successively arranged from the bottom up with gas branch pipe layer, filter block layer, supporting layer and filter material layer.Water inlet pipe and sewage pipe are located at denitrification filter
The top in pond, backwash water pipe are located at denitrification filter pool bottom.Denitrification filter pool is discharged the water outlet by the filter block lower part that is laid in
Pipe is in that "Ji" type enters clear water reserviors after collecting, and the height of neutral tube section is higher than height of filter media layer in denitrification filter pool, water outlet
Flowing water Valve is provided on pipe.The applicant declares that denitrification filter pool outlet system described in the utility model can guarantee to appoint
Water level in filter tank when is waited and will not be down to filter material layer the normal biological activity hereinafter, to guarantee denitrifying bacterium, ensures anti-nitre
The stable operation for changing filter tank, so that it is guaranteed that sewage disposal plant effluent water quality reaching standard.
As the advanced treatment process (coagulation+precipitating+filtering) of aforementioned conventional technical solution has higher removal rate to phosphorus, but
Be it is still insufficient to the removal ability of the nitrate nitrogen concentration in water outlet, cause the removal rate of TN very limited.It is, thus, sought for
A set of multi-functional sewage advanced treatment system for integrating filtering, denitrogenation.
Summary of the invention
In order to overcome the above technical problems, the utility model provides a kind of applied to the anti-of sewage treatment plant's advanced treating
Deep-bed filter structure is nitrified, integrates filtering, denitrogenation, denitrification ability can be significantly improved, sewage treatment is made to reach higher
Standard.
In order to realize goal of the invention, the utility model adopts the following technical solution: one kind being applied to sewage treatment plant's depth
The denitrification deep-bed filter structure of processing, including pass through structures and the sequentially connected conditioning tank of pipeline, distribution well, filter tank and clear
Pond further includes carbon source dosing system and air-water backwashing system；The carbon source dosing system includes carbon source storage tank, and carbon source adds
Pipeline one end is connect with carbon source storage tank, another to be connected in conditioning tank, and carbon source adds pipeline and throws equipped with diaphragm metering pump, carbon source
Add tube valve and electromagnetic flowmeter；Filter material layer is equipped in filter tank；Air-water backwashing system includes tracheae and backwash water pipe；Tracheae
Open at one end in filter material layer bottom, the other end connects air feed equipment, is equipped with tracheae electrically operated valve in the middle part of tracheae；Backwash water pipe one
End opening connects clear water reserviors with backwash water pipe electrically operated valve by backwash pump in filter material layer bottom, the other end.
This programme design the denitrification deep-bed filter structure applied to sewage treatment plant's advanced treating, including from upstream to
Conditioning tank, distribution well, filter tank and the clear water reserviors that downstream is set gradually are provided with carbon source dosing system in conditioning tank, set in filter tank
It is equipped with air-water backwashing system.Carbon source dosing system includes carbon source storage tank, and built-in carbon source, carbon source storage tank adds pipeline by carbon source
It is conducted to conditioning tank.The concrete component and quantity of carbon source can require sets itself according to technique by those skilled in the art.Carbon source
It adds pipeline and adds tube valve and electromagnetic flowmeter equipped with diaphragm metering pump, carbon source, can accurately control dosage and add
Speed, to match sewage treatment speed.Quick mixer can be set in conditioning tank, accelerate the mixing of carbon source and sewage.At second level
Sewage after reason enters conditioning tank by water inlet pipe, and filter tank is entered after distribution well uniform water distribution.Filter material layer, filtrate are equipped in filter tank
The specific material and the number of plies of layer are arranged on demand by those skilled in the art.Air-water backwashing system specifically includes gas recoil and water is anti-
Rush two subsystems.The gas of gas recoil comes from air feed equipment, can be air compressor machine, air blower etc., is connected to filter tank by tracheae
Below bottom, filter material layer.The water source of water recoil comes from clear water reserviors, and the water of clear water reserviors is then from through treated in filter tank clear water.
Since filter tank can be continuously generated nitrogen when carrying out denitrification processing, nitrogen can be attached on filtrate, and lead to filtrate filters out effect
Fruit decline, therefore this programme devises air water back washing system, by air water back washing, carries out back flush to filtrate, it is attached to eliminate
Nitrogen.It is noted that the water of upstream end is switched off momentarily, air water back washing operation knot in air water back washing operation
Shu Houzai restores.Ultrasonic level gage can be designed at the top of filter tank remotely to grasp filter tank liquid level.It can in conditioning tank and clear water reserviors
Nitrate nitrogen analyzer is respectively set, for the nitrate of dynamic analysis water inlet end and water outlet, for adjust processing intensity and
Speed provides intuitive data and supports.By handling above, the SS in tail water is retained by filtrate to be removed, and denitrifying bacterium is attached to stone
Biomembrane is grown on sand filtrate, nitrate nitrogen completes denitrification reaction herein and generates nitrogen, and carbon source sodium acetate is as denitrifying bacterium
Nutriment be utilized, partial organic substances are removed with SS, are expelled to clear water reserviors after filter tank is collected.Since treated, water is
Reach higher discharge standard, can be used as municipal landscape water, industrial water etc., saved water resource.
Preferably, filter material layer is equipped with filter block layer, boulder bed, sand filter blanket from bottom to top；Filter tank two sides side wall upper part is equipped with
Water distribution and backwash catch basin；Water distribution and backwash catch basin are the groove body of upper end opening, and the position of groove body upper end opening is lower than filter tank
The position of upper end opening；Distribution well is connected to water distribution and backwash catch basin by distribution well outlet pipe.The filtrate of this programme selection
It is three layers, upper layer is most tiny sand filter blanket, and middle layer is boulder bed, and bottom is filter block layer.Sand filter blanket is in top layer, filter sand particle
Tiny very light in weight, it is easy to it is disturbed, therefore water distribution and backwash catch basin are devised in the two sides of filter tank inner sidewall, carry out autogamy
Sewage after well uniform water distribution can initially enter water distribution and backwash catch basin, impact force be reduced, in a manner of slow and uniform
The opening above water distribution and backwash catch basin is overflowed, flows into filter tank, water flow impact pressure can be substantially reduced in this way, avoided to sand
The disturbance of filtering layer keeps the filter effect of sand filter blanket.
Preferably, filter tank downstream and clear water reserviors it is arranged side by side be equipped with wastewater disposal basin；Backwash the upstream and downstream end difference of drainpipe
Connect water distribution and backwash catch basin and wastewater disposal basin.The sewage handled in filter tank, in addition to nitrogen, there are also many tiny
Grain object would also adhere on filtrate.These particulate matters are washed from filtrate in air water back washing, and high concentration is distributed in filter tank, this
When these sewage can be drained into wastewater disposal basin, otherwise processed by backwash drainpipe.
Preferably, the filter material layer structure that the natural homogeneous quartz sand that the sand filter blanket is partial size 2-3mm is formed, is uniformly
Number is 1.4, and sphericity is not less than 0.8, and specific gravity >=2.6g/cm3, Morse hardness is 6-7, and sour solubility is no more than 3%.By invention
The treatment effect of people's actual verification, above-mentioned parameter is relatively significant.
Preferably, the boulder bed is to include hierarchical structure made of natural pebble arrangement stacks, the grain of natural pebble
Diameter is 3-38mm.By inventor's actual verification, the treatment effect of above-mentioned parameter is relatively significant.
Preferably, the height of the filter material layer and boulder bed and be 2.3 ± 0.1m.By inventor's actual verification, on
The treatment effect for stating parameter is relatively significant.
Preferably, the filter block layer includes at least one layer of filter block in the tiling of filter tank bottom of pond；Filter block is strip, is had
The packing groove of opening upwards, packing groove is interior to be filled with filler；The side of filter block has clamping structure fixed each other.We
Filter block used in case is generally shaped like cuboid, and filter block top fluting, slot is interior to be filled with filler.The selection of filler can be by this
Field technical staff voluntarily determines according to design requirement.The side of filter block has clamping structure fixed each other, can will be whole
The filter block of layer is integrated into a whole structure, it is sufficient to the thick and heavy other filtrates in carrying top, it can also be to avoid in air-water backwashing
When broken up.
Preferably, having reinforcing rib in packing groove, the filler in packing groove is concrete.In order to improve the strong of filter block layer
Degree, packing groove is interior to have reinforcing rib, and uses concrete as filler.
Preferably, being equipped with sodium acetate, effective concentration >=20%, COD >=17.5 ten thousand of sodium acetate in the carbon source storage tank
mg/L.By inventor's actual verification, the treatment effect of above-mentioned parameter is relatively significant.
Preferably, further including PLC control system；Be equipped with PLC controller in the PLC control system, PLC controller with
All electrical equipment signal connections in system.Present solution provides an automatic processing modes, using PLC controller and entirely
Electrical equipment in structure carries out signal connection, can also input the wastewater parameters that each signal source is collected in PLC controller, root
Entire treatment process is easily controlled according to setting, and processing parameter is voluntarily adjusted according to the variation of wastewater parameters.
In conclusion denitrogenation energy can be significantly improved the beneficial effects of the utility model are: integrate filtering, denitrogenation
Power makes sewage treatment reach higher standard.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Wherein: 1 conditioning tank, 2 distribution wells, 3 quick mixers, 4 carbon source storage tanks, 5 diaphragm metering pumps, 6 carbon sources add pipeline,
7 carbon sources add tube valve, 8 filter tanks, 9 distribution well outlet pipes, 10 water inlet motorized adjustment weir gates, 11 catch basin outlet pipe motor-driven valves
Door, 12 catch basin outlet pipes, 13 backwash water pipe electrically operated valves, 14 backwash pumps, 15 backwash water pipes, 16 clear water reserviors, 17
Backwash drainpipe electrically operated valve, 18 backwash drainpipes, 19 wastewater disposal basins, 20 water distributions and backwash catch basin, 21 sand filter blankets, 22 ovum
Rock layers, 23 filter block layers, 24 catch basins, 25 tracheaes, 26 tracheae electrically operated valves, 27 Roots blowers, 28PLC controller, 29 waste water
Pond blender, 30 discharge of wastewater pump, 31 discharge of wastewater pipelines；Arrow show water (flow) direction.
Specific embodiment
The utility model is further described with specific embodiment with reference to the accompanying drawing.
Embodiment is a kind of denitrification deep-bed filter structure applied to sewage treatment plant's advanced treating.As shown in Figure 1, this
Example the denitrification deep-bed filter structure applied to sewage treatment plant's advanced treating, successively include from upstream to downstream conditioning tank 1,
Distribution well 2 and filter tank 8, filter tank downstream setting clear water reserviors 16 and wastewater disposal basin 19 arranged side by side.Wherein conditioning tank is equipped with carbon source and adds
System, filter tank are equipped with air-water backwashing system.
Carbon source dosing system includes carbon source storage tank 4, and carbon source adds 6 one end of pipeline and connect with carbon source storage tank, another to be connected to
In conditioning tank, carbon source adds pipeline and adds tube valve 7 and electromagnetic flowmeter equipped with diaphragm metering pump 5, carbon source.In carbon source storage tank
Sodium acetate, effective concentration >=20%, COD >=17.5 ten thousand mg/L, the nitric acid that can be monitored according to filter tank nitrate nitrogen analyzer is placed
Nitrogen quantity controls carbon source dosage.Quick mixer 3 is equipped in conditioning tank, for accelerating the mixing of carbon source and sewage.
Distribution well plays water distribution, distribution well and conditioning tank joint construction in this example.Distribution well by distribution well outlet pipe 9 and into
Water power moves adjustable checkgate 10 and filter tank is connected.
Filter tank is enterprising underwater water flowing out structure.Filter tank bottom is equipped with filter material layer, the filter material layer of this example are as follows: the sand of top layer
Filtering layer 21, intermediate boulder bed 22 and most under filter block layer 23.The natural homogeneous quartz sand that sand filter blanket is partial size 2-3mm is formed
Filter material layer structure, coefficient of uniformity 1.4, sphericity are not less than 0.8, and specific gravity >=2.6g/cm3, Morse hardness is 6-7, sour solubility
No more than 3%.Boulder bed be include hierarchical structure made of natural pebble arrangement stacks, the partial size of natural pebble is 3-38mm.Filter
The height of the bed of material and boulder bed and be 2.3 ± 0.1m, this example 2.3m.Filter block layer is two layers of the filter block to tile in filter tank bottom of pond；
Filter block is strip, the packing groove with opening upwards, has reinforcing rib in packing groove, and the filler in packing groove is concrete.
The side of filter block has clamping structure fixed each other, and the filter block of this layer is connected as an entirety.Filter tank two sides side wall
Top is equipped with water distribution and backwash catch basin 20, and water distribution and backwash catch basin are the groove body of upper end opening, the position of groove body upper end opening
It sets low in the position of filter tank upper end opening；Distribution well is first connected to water distribution and backwash catch basin by distribution well outlet pipe, then
After going out upper end opening by water distribution and backwash catch basin spill-over, flow into the filter tank of lower section.
The both ends of backwash drainpipe 18 are separately connected water distribution and backwash catch basin and wastewater disposal basin, backwash and set on drainpipe
There is backwash drainpipe electrically operated valve 17.It is equipped with wastewater disposal basin blender 29 and discharge of wastewater pump 30 in wastewater disposal basin, waste water can be passed through
Waste water in wastewater disposal basin is drained into plant area's bilge well otherwise processed by discharge tube 31.
Filter tank bottom has a concave region in filter block layer, is catch basin 24.Catch basin passes through catch basin outlet pipe 12
It is connected to clear water reserviors, catch basin outlet pipe is equipped with catch basin outlet pipe electrically operated valve 11.
Air-water backwashing system includes gas recoil and water recoil two subsystems.Gas recoil subsystem include air feed equipment and
Tracheae 25, the air feed equipment in this example are Roots blower 27.Tracheae is equipped with tracheae electrically operated valve 26.One end of tracheae connects
Roots blower, the other end are opened on filter block layer bottom.Start gas recoil subsystem, filter block layer bottom can be pumped air into, used
Air recoil filter wash material.Water recoils subsystem including backwashing water pipe 15, and backwash water pipe is equipped with backwash water pipe motor-driven valve
Door 13 and backwash pump 14, backwash one end connection clear water reserviors of water pipe, and the other end is connected to catchmenting for catch basin outlet pipe
Slot outlet pipe electrically operated valve upstream.Start water recoil subsystem, the clear water in clear water reserviors can be pumped into filter block layer bottom, use clear water
Backwash filtrate.
This example is also equipped with PLC control system.PLC controller 28, PLC controller and system are equipped in PLC control system
Interior all electrical equipment signal connections, realize system automation control.
The denitrification deep-bed filter structure applied to sewage treatment plant's advanced treating of this example, working condition are as follows: sewage
It into conditioning tank, carries out carbon source and adds processing, subsequently into distribution well, carry out water distribution, enter back into filter tank, carry out driving nitrogen processing,
Handle it is up to standard after water body to enter clear water reserviors stand-by.Filter tank carries out air-water backwashing operation when necessary.It is needed when operation
Then temporary close upland water opens gas recoil and water recoil two subsystems, mixing wastewater with air backwash is carried out, in filter tank
After water level is increased to the upper opening for not crossing water distribution and backwash catch basin, gas recoil subsystem is closed, water recoil subsystem is used only
The lasting backwash of system, while backwash drainpipe is opened, the high-concentration waste water in filter tank is drained into wastewater disposal basin, and wastewater disposal basin is also fitted
Shi Kaiqi discharge of wastewater pumps waste discharge.Backwash finishes, and closes air-water backwashing system, restores upland water and continues to locate
Reason.
The denitrification deep-bed filter structure applied to sewage treatment plant's advanced treating of this example, realizes in the process of running
Following functions:
A: oil removal (SS) is removed；
B: the biological denitrification denitrification ability of nitrate nitrogen；
C: the partial organic substances that removal is attached on SS.
Using the denitrification deep-bed filter structure that should be used for sewage treatment plant's advanced treating, effectively can fast and effeciently go
Except the TN and SS in sewage, so that discharge water quality continued, stably reached IV class standard of grass root's, be able to satisfy technical feasibility, economy
It rationally and being capable of large-scale promotion application.
Claims (10)
1. a kind of denitrification deep-bed filter structure applied to sewage treatment plant's advanced treating, including by structures and pipeline according to
Conditioning tank (1), distribution well (2), filter tank (8) and the clear water reserviors (16) of secondary connection, characterized in that further include carbon source dosing system and
Air-water backwashing system；The carbon source dosing system includes carbon source storage tank (4), and carbon source adds pipeline (6) one end and carbon source storage tank
Connection, another to be connected in conditioning tank, carbon source adds pipeline and adds tube valve (7) and electricity equipped with diaphragm metering pump (5), carbon source
Magnetic flowmeter；Filter material layer is equipped in filter tank；Air-water backwashing system includes tracheae (25) and backwash water pipe (15)；Tracheae one end
It is opened on filter material layer bottom, the other end connects air feed equipment, is equipped with tracheae electrically operated valve (26) in the middle part of tracheae；Backwash water pipe one
End opening connects clear water by backwash pump (14) and backwash water pipe electrically operated valve (13) in filter material layer bottom, the other end
Pond.
2. a kind of denitrification deep-bed filter structure applied to sewage treatment plant's advanced treating according to claim 1,
It is characterized in, filter material layer is equipped with filter block layer (23), boulder bed (22), sand filter blanket (21) from bottom to top；Filter tank two sides side wall upper part is set
There are water distribution and backwash catch basin (20)；Water distribution and backwash catch basin are the groove body of upper end opening, and the position of groove body upper end opening is low
In the position of filter tank upper end opening；Distribution well is connected to water distribution and backwash catch basin by distribution well outlet pipe.
3. a kind of denitrification deep-bed filter structure applied to sewage treatment plant's advanced treating according to claim 2,
Be characterized in, filter tank downstream and clear water reserviors it is arranged side by side be equipped with wastewater disposal basin (19)；The upstream and downstream end of backwash drainpipe (18) connects respectively
Connect water distribution and backwash catch basin and wastewater disposal basin.
4. a kind of denitrification deep-bed filter structure applied to sewage treatment plant's advanced treating according to claim 2,
It is characterized in, the filter material layer structure that the natural homogeneous quartz sand that the sand filter blanket is partial size 2-3mm is formed, coefficient of uniformity 1.4, ball
Shape degree is not less than 0.8, and specific gravity >=2.6g/cm3, Morse hardness is 6-7, and sour solubility is no more than 3%.
5. a kind of denitrification deep-bed filter structure applied to sewage treatment plant's advanced treating according to claim 2,
Be characterized in, the boulder bed be include hierarchical structure made of natural pebble arrangement stacks, the partial size of natural pebble is 3-38mm.
6. a kind of denitrification deep-bed filter structure applied to sewage treatment plant's advanced treating according to claim 2,
It is characterized in, the height of the filter material layer and boulder bed and be 2.3 ± 0.1m.
7. a kind of denitrification deep-bed filter structure applied to sewage treatment plant's advanced treating according to claim 2,
It is characterized in, the filter block layer includes at least one layer of filter block in the tiling of filter tank bottom of pond；Filter block is strip, with opening upwards
Packing groove, packing groove is interior to be filled with filler；The side of filter block has clamping structure fixed each other.
8. a kind of denitrification deep-bed filter structure applied to sewage treatment plant's advanced treating according to claim 7,
It is characterized in that there is reinforcing rib in packing groove, the filler in packing groove is concrete.
9. a kind of denitrification deep-bed filter structure applied to sewage treatment plant's advanced treating according to claim 1,
It is characterized in, sodium acetate, effective concentration >=20%, COD >=17.5 ten thousand mg/L of sodium acetate is equipped in the carbon source storage tank.
10. a kind of denitrification deep-bed filter structure applied to sewage treatment plant's advanced treating according to claim 1,
It is characterized in, further includes PLC control system；PLC controller (28) are equipped in the PLC control system, in PLC controller and system
All electrical equipment signal connections.
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| CN201920058681.5U CN209618991U (en) | 2019-01-14 | 2019-01-14 | A kind of denitrification deep-bed filter structure applied to sewage treatment plant's advanced treating |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111995048A (en) * | 2020-09-09 | 2020-11-27 | 四川省科学城天人环保有限公司 | Rear denitrification filter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111995048A (en) * | 2020-09-09 | 2020-11-27 | 四川省科学城天人环保有限公司 | Rear denitrification filter |
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