CN208883568U - A kind of filtering settling pond integrating filtering, precipitating function - Google Patents
A kind of filtering settling pond integrating filtering, precipitating function Download PDFInfo
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- CN208883568U CN208883568U CN201820938853.3U CN201820938853U CN208883568U CN 208883568 U CN208883568 U CN 208883568U CN 201820938853 U CN201820938853 U CN 201820938853U CN 208883568 U CN208883568 U CN 208883568U
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Abstract
The utility model relates to a kind of filterings of collection, function is precipitated in the filtering settling pond of one, the filtering settling pond includes multiple single lattice filter tanks being arranged in parallel, the single lattice filter tank includes filter tank pond body, filter tank water inlet pipe, bottom intakes and mud drainage slot, bottom water and air distributing filter block, supporting layer and storage mud layer, filter material layer, middle part waste water district, inclined plate/inclined tube settlement, top clear water zone, overflow weir, filter tank outlet pipe, flushing device, wastewater trough and discharge of wastewater general pipeline, the water inlet of logical setting bottom and mud drainage slot are sequentially connected in the filter tank pond body from the bottom to top, bottom water and air distributing filter block, supporting layer and storage mud layer, filter material layer, middle part waste water district, inclined plate/inclined tube settlement and top clear water zone.This filtering settling pond structure is simple, and design is scientific and reasonable, the dual function with biofilter and coagulative precipitation tank, belongs to the novel process equipment of the one kind in environmental protection industry (epi) water process advanced treating field, and application prospect is extensive.
Description
Technical field
The utility model belongs to technical field of environment protection equipment, is related to water process advanced treatment device, especially a kind of to collect
Filter, precipitating function are in the filtering settling pond of one.
Background technique
Raising with China to sewage drainage standard, each sewage treatment plant is all on the basis of original two stage biological processing
On, take new process facility to carry out proposing mark transformation, such as efficient sedimentation tank, magnetic-coagulation sedimentation basin, filtering cloth filtering pool, active sand filtration
Pond, V-type filter tank, biological aerated filter, denitrification bio-filter, denitrification deep-bed filter, ultrafiltration membrane etc., or even use a variety of works
The mode of skill combination.
Efficient sedimentation tank, magnetic-coagulation sedimentation basin utilize coagulating sedimentation principle, can remove suspended matter (SS) and total phosphorus (TP), tool
There is the characteristics of small occupied area, high treating effect, but to the substantially non-treated effect of ammonia nitrogen and total nitrogen.
Filtering cloth filtering pool, active sand filter, V-type filter tank can remove suspended matter (SS) and total phosphorus using its filtering retention principle
(TP), have the characteristics that occupied area is small, high treating effect, but to the substantially non-treated effect of ammonia nitrogen and total nitrogen, and filtering cloth filtering pool
Filter cloth be used for dephosphorization when easily block, filter cloth replacing is costly；V-type filter tank filter bed is shallower, is generally chiefly used in Water purification.
Biological aerated filter can remove suspended matter (SS), total phosphorus (TP) and ammonia using its filtering retention and biomembrane principle
Nitrogen (NH3- N), filter is usually the biggish haydite of partial size, when biofilm development is very fast, SS be easy it is exceeded, and expose
It gas biofilter can only be by ammonia nitrogen (NH3- N) it is converted into nitrate nitrogen (NOx- N), nitrogen removal can not be converted into.
Denitrification bio-filter using its filtering retention and biomembrane principle, can remove suspended matter (SS), total phosphorus (TP) and
Nitrate nitrogen (NOx- N), filter is usually the biggish haydite of partial size, when biofilm development is very fast, SS be easy it is exceeded, and
It can not reduce ammonia nitrogen (NH3- N), when adding carbon source excess, there is also the exceeded danger of BOD.
Denitrification deep-bed filter using its filtering retention and biomembrane principle, can remove suspended matter (SS), total phosphorus (TP) and
Nitrate nitrogen (NOx-N).Filter generallys use the lesser quartz sand of partial size, since filter bed is deeper, when back washing strength is excessive,
It will cause filtrate loss, if intensity is inadequate, will lead to backwash and be not thorough, number of backwashes increases, and wastes backwashing water.And its nothing
Method reduces ammonia nitrogen (NH3- N), when adding carbon source excess, there is also the exceeded danger of BOD.
Ultrafiltration membrane is using its micro-pore-film filtration that pressurizes, it can be achieved that removal organic matter (COD), suspended matter (SS), total phosphorus (TP)
With nitrate nitrogen (NOx- N) function, but its investment and operating cost it is higher, and Membrane cleaning generate concentrated water it is very difficult.
It is combined when using two or three in process above, generally can reach processing requirement, but kinds of processes group
Conjunction occupied area is larger, and investment cost is higher, operational management trouble.
By retrieval, following several patent publication us relevant to present patent application are found:
1, a kind of air bearing combination biological aerated filter integration apparatus and sewage treatment process (CN107759035A), it is open
A kind of air bearing combination biological aerated filter integration apparatus, including air bearing aeration biological filtering device, air-dissolving apparatus, backwash
Device and clear water reserviors, the air-float filtration aerator are equipped with water inlet pipe and water outlet, and the water outlet is connected with first
Branch and second branch, back purge system one end connection water inlet pipe connection, the other end connect the first branch, the clear water reserviors
The first branch is connected, the air-dissolving apparatus connects second branch by reflux water pipe, and the air water in air-dissolving apparatus exists by setting
Air inlet on air bearing aeration biological filtering device enters in air bearing aeration biological filtering device.The invention also discloses utilize institute
The technique that the air bearing combination biological aerated filter integration apparatus stated administers sewage.Equipment collection air bearing of the invention and aeration and biological
Filter tank technique takes full advantage of the mutual supplement with each other's advantages of technology room in one, and possessing building, land used is few, expense is low, and energy-efficient is excellent
Point.
2, for the multi-stage aeration biological filter tank of purification of water quality and its purification process (CN105668943A), it is related to a kind of use
In the multi-stage aeration biological filter tank of purification of water quality, including primary filtration group, the filter tank sheet being sequentially sequentially connected in series through water pipe
Body and membrane bioreactor, the filter tank ontology include several reaction zones sequentially concatenated, wherein chopped-off head reaction zone
Using lower end water inlet upper end water outlet to upper mode, wherein second level reaction zone is using upper end water inlet lower end water outlet to flowing down
Mode, all reaction zones are alternately, the reaction zone is anoxic zone or aerobic to upper mode and to downward stream mode
Area, wherein chopped-off head reaction zone is anoxic zone, and wherein final stage reaction zone is aerobic zone；The invention further relates to one kind to be used for purification of water quality
Multi-stage aeration biological filter tank purification process.The present invention is not only reasonable in design, compact, but also purification process is simple, only
It is good to change effect, it is efficiently convenient, it is environmentally protective.
3, a kind of complex biological filter (CN101792237B), is related to a kind of complex biological filter, belongs to sewage treatment skill
Art field.Its top side is distributing channel and inlet channel, and the top other side is water outlet braiding channel and backwash drainage ditch.Distributing channel
Lateral wall is equipped with original water inlet.The bottom of inlet channel is equipped with mixed liquor water inlet tube connection ports.The lateral wall of water outlet braiding channel is equipped with
Water outlet.The bottom of backwash drainage ditch is equipped with backwash discharge outlet.Lower part is water distribution gas distribution area, the side in water distribution gas distribution area in pond body
Wall is equipped with backwash air inlet and water inlet, and water inlet is connected with the connector of inlet channel bottom, the other side in water distribution gas distribution area
Wall is equipped with backwash water inlet, and top is from bottom to top followed successively by filter plate and supporting layer.The top of supporting layer is equipped with biologic packing material, biology
The side wall of packing area is equipped with aeration opening.Complex biological filter of the invention is able to achieve the organic matter degradation to sewage, denitrogenation removes
The multinomial processing such as phosphorus, filtering is suitable for large, medium and small type sewage treatment project, is particularly suitable for the processing of high ammonia-nitrogen wastewater.
By comparison, there is essential difference in present patent application and above-mentioned patent publication us.
Utility model content
The purpose of the utility model is to overcome providing in place of the deficiencies in the prior art, a kind of collection is filtered and precipitating function is
The filtering settling pond of one, the filtering settling pond structure is simple, and design is scientific and reasonable, solves High-rate sedimentation, magnetic-coagulation sedimentation basin
Without biochemical effects；Biological aerated filter, denitrification bio-filter water outlet SS be not up to standard；Denitrification deep-bed filter runs sand and can not take off
Ammonia nitrogen；Ultrafiltration membrane somewhat expensive；The problems such as group technology takes up a large area, and investment cost is high.
The utility model solves its technical problem and adopts the following technical solutions to achieve:
A kind of filtering settling pond integrating filtering, precipitating function, the filtering settling pond include multiple be arranged in parallel
Single lattice filter tank, the single lattice filter tank include filter tank pond body, filter tank water inlet pipe, bottom intake and mud drainage slot, bottom water and air distributing
Filter block, supporting layer and storage mud layer, filter material layer, middle part waste water district, inclined plate/inclined tube settlement, top clear water zone, overflow weir, filter tank
Outlet pipe, flushing device, wastewater trough and discharge of wastewater general pipeline are sequentially connected logical setting bottom in the filter tank pond body from the bottom to top
It intakes and mud drainage slot, bottom water and air distributing filter block, supporting layer and storage mud layer, filter material layer, middle part waste water district, inclined plate/inclined tube disposes
Overflow weir is arranged on the filter tank pond body inner wall of top clear water zone middle and upper part side, outside the overflow weir in area and top clear water zone
Filter tank pond body on filter tank outlet pipe is set, be connected inside the filter tank outlet pipe and overflow weir setting；The filter tank water inlet pipe
It is set to outside the pond body of filter tank, and intakes with bottom and mud drainage slot is connected setting by valve；
The wastewater trough is set to outside the pond body of filter tank, and the middle and lower part of wastewater trough passes through turnover panel drain valve or discharge of wastewater lock
Plate valve is connected setting with middle part waste water district, and the middle and lower part of the wastewater trough is also connected one discharge of wastewater general pipeline of setting；
The flushing device include backwashing water water inlet pipe, backwash air inlet pipe, just rinsing waste pipe, bottom backwash into
Gas perforated pipe, the backwashing water water inlet pipe is intake also by valve with bottom and mud drainage slot is connected setting, the backwash
Air inlet pipe is set in the pond body of filter tank downwards along the vertical direction from the top of filter tank pond body, and its bottom end and bottom backwash air inlet
Perforated pipe is vertically connected logical setting, and bottom backwash air inlet perforated pipe is set to the filter tank pond body below supporting layer and storage mud layer
It is interior；Setting that described positive one end for rinsing waste pipe also intakes with bottom and mud drainage slot is connected, this is just rinsing the another of waste pipe
The setting that is connected with wastewater trough is held, this just rinses and is provided with valve on waste pipe；
Full of the cobblestone that multiple partial sizes are 3-40mm is arranged in the supporting layer and storage mud layer, the partial size of cobblestone is under
Reduce step by step on and, cobblestone surface can grow facultative anaerobe film.
Moreover, the single lattice filter tank further includes aeration tube and aerator, the top of the aeration tube from filter tank pond body is downward
It is set in the pond body of filter tank along the vertical direction, and its bottom end and aerator are vertically connected logical setting, which is set to filtrate
Filter material layer is divided into top half and lower half portion by the middle part in layer, the aeration tube, and the top half is aerobic layer, can
Nitrification is carried out by ammonia nitrogen NH3- N is converted into nitrate nitrogen NOx- N, the lower half portion are amphimicrobian layer, are able to carry out anti-nitre
Change effect removing nitrate nitrogen NOx-N。
Moreover, the aerator is single-hole membrane aerator.
Moreover, the single lattice filter tank further includes nitrification water return-flow system, the input terminal of the nitrification water return-flow system and filter
Pond outlet pipe is connected setting, and the output end of the nitrification water return-flow system, which is intake by valve with bottom, and mud drainage slot is connected sets
It sets.
Moreover, the single lattice filter tank further include carbon source add, mixing arrangement, which adds, mixing arrangement and filter tank into
Water pipe is also connected with the input terminal of filter tank water inlet pipe setting.
Moreover, the single lattice filter tank further includes flocculant concentration, mixing arrangement, the flocculant concentration, mixing arrangement and filter
Pond water inlet pipe is also connected with the input terminal of filter tank water inlet pipe setting.
Moreover, the filter material layer uses haydite, quartz sand, rubble or plastic filtering material.
Moreover, the hydraulic surface loading 5-8m of the filtering settling pond3/(m2H), the area in the single lattice filter tank is 20-
70m2, width 2-6m.
The advantages and positive effects of the utility model are as follows:
1, this filtering settling pond structure is simple, and design is scientific and reasonable, the dual function with biofilter and coagulative precipitation tank
Can, which is able to solve High-rate sedimentation, magnetic-coagulation sedimentation basin without biochemical effects；Biological aerated filter, denitrification biology
It is not up to standard that filter tank is discharged SS；Denitrification deep-bed filter runs sand and can not ammonia nitrogen removal；Ultrafiltration membrane somewhat expensive；Group technology takes up an area face
The problems such as product is big, and investment cost is high, which can be used in Water purification removing oil removal (SS), and can be in dirt
Oil removal (SS), total phosphorus (TP), partial particulate shape organic matter (COD), ammonia nitrogen (NH are removed in water depth processing3- N) and nitrate nitrogen
(NOx- N), belong to the novel process equipment of the one kind in environmental protection industry (epi) water process advanced treating field, application prospect is extensive.
2, this filtering settling pond is compared with common biofilter, and FST can realize nitrification, denitrification while carry out, water outlet
Water quality is high, and filtrate will not be lost when back washing strength is big, by the way of positive flushing and backwash, cleans ratio more thoroughly, section
Operating cost is saved, filtrate is not easy to harden.
3, this filtering settling pond is compared with coagulative precipitation tank, increases biological treatment function, it can be achieved that denitrification functions, recoil
It is cleaned automatically when washing inclined plate (inclined tube), saves administration fee.
4, this filtering settling pond is compared with precipitating, filtration combination technique, and occupied area is small, and equipment is relatively easy, is saved and is thrown
Money, operation, administration fee.
5, this filtering settling pond is compared with ultrafiltration membrane, reverse osmosis process, and operating cost is low, without secondary pollution.
6, the pool bottom setting supporting layer and storage mud layer of this filtering settling pond, can store a large amount of retention suspended matters.
7, this filtering settling pond setting nitrification water return-flow system, increases pond body denitrification denitrogenation efficiency.
Detailed description of the invention
Fig. 1 is the structure connection diagram of the utility model；
Fig. 2 is a kind of use state structure connection diagram of the utility model.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing and by specific embodiment, and following embodiment is only retouched
The property stated, it is not restrictive, protection scope of this utility model cannot be limited by this.
Equipment, structure, position and the connection relationship being not described in detail in the utility model can be understood as in the art
Common knowledge.
A kind of filtering settling pond (Filtration Sediment Tank, abbreviation integrating filtering, precipitating function
FST), as depicted in figs. 1 and 2, the filtering settling pond includes multiple single lattice filter tanks being arranged in parallel, and the single lattice filter tank includes
Filter tank pond body 4, filter tank water inlet pipe 1, bottom water inlet and mud drainage slot 19, bottom water and air distributing filter block 18, supporting layer and storage mud layer 16,
Filter material layer 13, middle part waste water district 10, inclined plate/inclined tube settlement 9, overflow weir 20, filter tank outlet pipe 5, are rinsed top clear water zone 8
Equipment, wastewater trough 21 and discharge of wastewater general pipeline 12, be sequentially connected in the filter tank pond body from the bottom to top logical setting bottom intake it is simultaneous
Mud drainage slot, bottom water and air distributing filter block, supporting layer and storage mud layer, filter material layer, middle part waste water district, inclined plate/inclined tube settlement and on
Overflow weir is arranged on the filter tank pond body inner wall of top clear water zone middle and upper part side, the filter tank outside the overflow weir in portion clear water zone
Filter tank outlet pipe is set in pond body, be connected inside the filter tank outlet pipe and overflow weir setting, the filter tank outlet pipe can with it is clear
Pond is connected setting, and the clear water in overflow weir is flow in clear water reserviors by filter tank outlet pipe, stored for future use；The filter tank water inlet
Pipe is set to outside the pond body of filter tank, and is intake with bottom and mud drainage slot is connected setting by valve；
The wastewater trough is set to outside the pond body of filter tank, and the middle and lower part of wastewater trough passes through turnover panel drain valve or discharge of wastewater lock
Plate valve 11 is connected setting with middle part waste water district, and the middle and lower part of the wastewater trough is also connected one discharge of wastewater general pipeline of setting, waste water
The waste water of discharge manifold discharge can be discharged to wastewater disposal basin, and waste water is cached in wastewater disposal basin, may finally be discharged to water factory front end outside；
The flushing device includes backwashing water water inlet pipe 2, backwash air inlet pipe 7, positive flushing waste pipe 15, bottom recoil
Air inlet perforated pipe 17 is washed, setting that the backwashing water water inlet pipe is intake also by valve with bottom and mud drainage slot is connected is described
Backwash air inlet pipe is set in the pond body of filter tank downwards along the vertical direction from the top of filter tank pond body, and its bottom end and bottom are recoiled
It washes air inlet perforated pipe and is vertically connected logical setting, bottom backwash air inlet perforated pipe is set to the filter below supporting layer and storage mud layer
In the pond body of pond；Setting that described positive one end for rinsing waste pipe also intakes with bottom and mud drainage slot is connected, this just rinses waste pipe
The other end be connected with wastewater trough setting, this just rinses and is provided with valve on waste pipe；
Full of the cobblestone that multiple partial sizes are 3-40mm is arranged in the supporting layer and storage mud layer, the partial size of cobblestone is under
Reduce step by step on and, cobblestone surface can grow facultative anaerobe film.
In the present embodiment, the single lattice filter tank further includes aeration tube 6 and aerator 14, and the aeration tube is from filter tank pond body
Top be set in the pond body of filter tank along the vertical direction downwards, and its bottom end and aerator are vertically connected logical setting, the aerator
It is set to the middle part in filter material layer, which is divided into top half and lower half portion for filter material layer, and the top half is
Aerobic layer is able to carry out nitrification for ammonia nitrogen (NH3- N) it is converted into nitrate nitrogen (NOx- N), the lower half portion is amphimicrobian
Layer is able to carry out denitrification removing nitrate nitrogen (NOx- N) (note: aerobic layer is determined by the content of oxygen in water, is being aerated
In the filter material layer on device top, content of oxygen dissolved in water is higher after being aerated, and creates condition for the growth of aerobic microbiological, especially
It is nitrobacteria, it can be by NH3- N is converted into NOx-N.Because water (flow) direction is from bottom to top, so in the filter material layer of aerator lower part
It is substantially free of dissolved oxygen, only molecular oxygen, is suitble to the growth of denitrifying bacteria can be by NOx-N on the basis of having carbon source
It is converted into N2It is removed from water.It should be added that nitrobacteria is autotrophy aerobic bacterium, denitrifying bacteria is heterotrophism
Amphimicrobian type bacterium, therefore need to create aerobic environment for nitrobacteria, anoxia condition is created for denitrifying bacteria.Nitrobacteria
It can only be by NH3- N is converted into NOx-N, while consuming oxygen.Denitrifying bacteria can only convert N for NOx-N2, do not need consumption oxygen
Gas, but require supplementation with carbon source.).
More preferably, the aerator is single-hole membrane aerator.
Aerator is set in the filter material layer of this biofilter, and the setting height of aerator in actual use can be according to reality
Inlet and outlet water water quality and related specifications are (such as: " membrane biological process sewage treatment project technical specification " (HJ_2010-2011), " biological filter
Pond method sewage treatment project technical specification " (HJ2014-2012), " sewage water filtration processing engineering legislation " (HJ_2008-
2010) etc.) calculating determination is carried out, filter material layer is divided into two parts by aeration tube, and lower half portion is amphimicrobian layer, can be carried out anti-
Nitrification removes nitrate nitrogen (NOx- N), the N of generation2It is drained into atmosphere with water flow；Top half is aerobic layer, can be nitrified
Ammonia nitrogen (NH3-N) is converted nitrate nitrogen (NO by effectx- N), while can prevent caused by excessively adding carbon source because of denitrification
COD, BOD are exceeded.
In the present embodiment, the single lattice filter tank further includes nitrification water return-flow system 3, described to nitrify the defeated of water return-flow system
Enter end to be connected with filter tank outlet pipe setting, the nitrification water return-flow system output end is by valve and bottom intakes and mud drainage slot
Be connected setting, and setting nitrification water return-flow system increases pond body denitrification denitrogenation efficiency.
When it is main for handling sewage to remove ammonia nitrogen and nitrate nitrogen, if influent ammonia nitrogen content is higher, lead to effluent nitrate-nitrogen
When content is not up to standard, nitrification water return-flow system need to be added, nitrate nitrogen made of mineralized nitrogen is reprocessed, guarantees nitrate nitrogen
It is up to standard.
In the present embodiment, the single lattice filter tank further include carbon source add, mixing arrangement (for the usual means of this field,
Therefore do not show that in present patent application), which adds, mixing arrangement and the also input with filter tank water inlet pipe of filter tank water inlet pipe
Hold the setting that is connected.
In the present embodiment, the single lattice filter tank further includes flocculant concentration, mixing arrangement (for the common dress of this field
Set, therefore do not showed that in present patent application), the flocculant concentration, mixing arrangement and filter tank water inlet pipe also with filter tank water inlet pipe
Input terminal be connected setting.
In the present embodiment, the hydraulic surface loading 5-8m of the filtering settling pond3/(m2H), the single lattice filter tank
Area is 20-70m2, width 2-6m, filter tank total height is by the comprehensive determination such as filtrate thickness, inclined plate/inclined tube height.
In the present embodiment, the filter material layer uses haydite, quartz sand, rubble or plastic filtering material.
The utility model integrate filtering, precipitating function filtering settling pond (Filtration Sediment Tank,
Abbreviation FST) working principle are as follows:
When operating normally, sewage enters in bottom intake chamber 19 filtering settling pond (FST) through filter tank water inlet pipe 1, the bottom of through
Portion's water and air distributing filter block 18 (filter block percent opening is big, and resistance is small, is not easy to plug) enters supporting layer and storage mud layer after being uniformly distributed, hold
Support layer is that 3-40mm cobblestone forms by partial size, and partial size reduces step by step from bottom to top, and bulky grain suspended matter is trapped within supporting layer
Interior, since supporting layer lower part cobble partial size is larger, gap is also larger, can be as storage mud layer, while surface growth amphimicrobian is raw
(note: the facultative anaerobe film of cobblestone surface growth here refers to growing a small amount of facultative anaerobe film, i.e. denitrification object film
The biomembrane of bacterium composition, the facultative biomembrane of actually its main function are still grown on the filtrate below aerator,
Biomembrane can pass through nature culture biofilm or inoculation membrane formation), the sewage after supporting layer filters containing only small granular suspended matters enters
Filter material layer 13；
Since the general partial size of filter material layer is smaller, and adhere to a large amount of biomembranes, the lesser suspended matter of partial size, but biology can be retained
It when film too high levels, has part film and falls off, enter middle part waste water district 10 with water flow, enter inclined plate/inclined tube settlement 9 later,
Inclined plate/inclined tube can be intercepted by gravity precipitation with the biomembrane and tiny suspended particulate substance in water flow.Intercepted particle
Object is stranded in middle part waste water district 10, and clear water enters top clear water zone 8 after inclined plate/inclined tube, then discharges water to filter through overflow weir
Pond outlet pipe 5, outlet pipe can be connected to clear water reserviors.
When it is main for handling sewage with oil removal, aeration tube 6 and aerator 14 can be added；When processing sewage is to remove ammonia
When nitrogen and nitrate nitrogen are main, if influent ammonia nitrogen content is higher, when causing effluent nitrate-nitrogen content not up to standard, nitrification water need to be added and returned
Streaming system 3, nitrate nitrogen made of mineralized nitrogen is reprocessed, guarantee nitrate nitrogen it is up to standard (according to present treatment technique front end come
Water, and processing have the difference of effluent quality and select different systems, and return-flow system is not required.Common water standard has
" water environment quality standard " (GB3838-2002), " urban wastewater treatment firm pollutant comprehensive discharge standard " (GB18918-
2002), " reuse of wastewater engineering design code " (GB50335-2002) etc.)；With denitrification denitrogenation be it is main when, need to be in filter tank
Be arranged before water inlet pipe 1 carbon source add, mixing arrangement；With dephosphorization be it is main when, need to be arranged before filter tank water inlet pipe 1 flocculant throw
Add, mixing arrangement.
It after this FST runs a period of time, need to be rinsed, suspended matter will be retained in pond and excessive biomembrane washes out, to protect
Demonstrate,prove water flow.The backwashing manner of this FST are as follows: water just rinses-gas backwash-combined water and air backwash-water backwashing.Water
When positive flushing, stop the water inlet of filter tank water inlet pipe 1, opens the positive valve rinsed on waste pipe 15, then the clear water of top clear water zone
Quickly to dirty under the action of level head (level head is industry term, refers to the gravitational difference that water surface height difference generates)
It is dynamic, inclined plate/inclined tube 9, filter material layer 13 and supporting layer 16 are rinsed, a large amount of suspended particulate substances flow through bottom mud drainage slot with water in supporting layer
After entering wastewater trough with positive flushing waste pipe 15, it is discharged outside pond through discharge of wastewater general pipeline 12.After the completion of water square impact is washed, square impact is closed
The valve of waste pipe 15 is washed, the liquid level of clear water zone 8 drops to middle part waste water district 10 at this time, opens the valve in backwash air inlet pipe 7
Door carries out gas backwash, and air washes the biofilm detachment for adhering to filter material surface by rubbing with the hands, forms flowable suspended matter, gas backwash
After a period of time, the valve on backwashing water water inlet pipe 2 is opened, carries out combined water and air backwash.It is filtered when combined water and air backwash
Material expands, and the flowable suspended matter in filtrate gap enters middle part waste water district 10 and its upper area with water flow, works as filtrate
When expanding layer enters inclined plate/inclined tube settlement 9, friction cleaning can be carried out to inclined plate/inclined tube, avoid its blocking.When on filtrate
When square liquid level rises to below overflow weir (more preferably, liquid level rises to 20cm below overflow weir), backwashing water water inlet pipe 2 is closed
With the valve in backwash air inlet pipe 7, stops combined water and air backwash and stood.After the standing of short time, filtrate is returned rapidly
Original state is dropped down onto, and suspended matter settling velocity is slower, is still stranded in water, opens turnover panel drain valve or discharge of wastewater lock at this time
Plate valve 11, the waste water containing a large amount of suspended matters are entered in waste water canal and are excluded outside pond through discharge of wastewater general pipeline 12.When middle part waste water
After the waste water of area 10 and area above is drained, the valve opened on backwashing water water inlet pipe 2 carries out water backwashing.Water backwashing
When filtrate do not expand, in the short time water backwashing suspended matter for remaining in filtrate upper layer can be flushed to middle part waste water district
In 10, excluded outside pond through discharge of wastewater general pipeline 12.Restore to operate normally after the completion of water backwashing.
Although disclosing the embodiments of the present invention and attached drawing for the purpose of illustration, those skilled in the art can be with
Understand: departing from the utility model and spirit and scope of the appended claims, various substitutions, changes and modifications are all can
Can, therefore, the scope of the utility model is not limited to the embodiment and attached drawing disclosure of that.
Claims (8)
1. a kind of filtering settling pond for integrating filtering, precipitating function, it is characterised in that: the filtering settling pond includes multiple
The single lattice filter tank being arranged in parallel, the single lattice filter tank includes filter tank pond body, filter tank water inlet pipe, bottom intakes and mud drainage slot, bottom
Water and air distributing filter block, supporting layer and storage mud layer, filter material layer, middle part waste water district, inclined plate/inclined tube settlement, top clear water zone, overflow
Weir, filter tank outlet pipe, flushing device, wastewater trough and discharge of wastewater general pipeline are sequentially connected in the filter tank pond body logical from the bottom to top
The simultaneous mud drainage slot of setting bottom water inlet, bottom water and air distributing filter block, the simultaneous storage mud layer of supporting layer, filter material layer, middle part waste water district, inclined plate/
Overflow weir is arranged on the filter tank pond body inner wall of top clear water zone middle and upper part side in inclined tube settlement and top clear water zone, should
Filter tank outlet pipe is set in the filter tank pond body outside overflow weir, and be connected setting inside the filter tank outlet pipe and overflow weir；The filter
Pond water inlet pipe is set to outside the pond body of filter tank, and is intake with bottom and mud drainage slot is connected setting by valve；
The wastewater trough is set to outside the pond body of filter tank, and the middle and lower part of wastewater trough passes through turnover panel drain valve or discharge of wastewater slide valve
Be connected setting with middle part waste water district, and the middle and lower part of the wastewater trough, which is also connected, is arranged a discharge of wastewater general pipeline；
The flushing device include backwashing water water inlet pipe, backwash air inlet pipe, just rinsing waste pipe, bottom backwash air inlet wear
Kong Guan, the backwashing water water inlet pipe is intake also by valve with bottom and mud drainage slot is connected setting, the backwash air inlet
Pipe is set in the pond body of filter tank downwards along the vertical direction from the top of filter tank pond body, and its bottom end and bottom backwash air inlet perforation
Pipe is vertically connected logical setting, and bottom backwash air inlet perforated pipe is set in the filter tank pond body below supporting layer and storage mud layer；
Described positive one end for rinsing waste pipe also intakes with bottom and mud drainage slot is connected setting, this just rinsing waste pipe the other end and
Wastewater trough is connected setting, this just rinses and is provided with valve on waste pipe；
Full of the cobblestone that multiple partial sizes are 3-40mm is arranged in the supporting layer and storage mud layer, the partial size of cobblestone is from bottom to top
Reduce step by step, cobblestone surface can grow facultative anaerobe film.
2. the filtering settling pond according to claim 1 for integrating filtering, precipitating function, it is characterised in that: the list
Lattice filter tank further includes aeration tube and aerator, and the top of the aeration tube from filter tank pond body is set to downwards filter tank along the vertical direction
In pond body, and its bottom end and aerator are vertically connected logical setting, which is set to the middle part in filter material layer, which will
Filter material layer is divided into top half and lower half portion, and the top half is aerobic layer, is able to carry out nitrification for ammonia nitrogen
NH3- N is converted into nitrate nitrogen NOx- N, the lower half portion are amphimicrobian layer, are able to carry out denitrification removing nitrate nitrogen
NOx-N。
3. the filtering settling pond according to claim 2 for integrating filtering, precipitating function, it is characterised in that: the exposure
Gas device is single-hole membrane aerator.
4. the filtering settling pond according to claim 1 for integrating filtering, precipitating function, it is characterised in that: the list
Lattice filter tank further includes nitrification water return-flow system, and the input terminal of the nitrification water return-flow system is connected setting with filter tank outlet pipe,
Setting that the output end of the nitrification water return-flow system is intake by valve with bottom and mud drainage slot is connected.
5. the filtering settling pond according to claim 1 for integrating filtering, precipitating function, it is characterised in that: the list
Lattice filter tank further include carbon source add, mixing arrangement, which adds, mixing arrangement and filter tank water inlet pipe also with filter tank water inlet pipe
Input terminal is connected setting.
6. the filtering settling pond according to claim 1 for integrating filtering, precipitating function, it is characterised in that: the list
Lattice filter tank further includes flocculant concentration, mixing arrangement, and the flocculant concentration, mixing arrangement and filter tank water inlet pipe are also intake with filter tank
The input terminal of pipe is connected setting.
7. the filtering settling pond according to claim 1 for integrating filtering, precipitating function, it is characterised in that: the filter
The bed of material uses haydite, quartz sand, rubble or plastic filtering material.
8. the filtering settling pond according to any one of claims 1 to 7 for integrating filtering, precipitating function, feature exist
In: the hydraulic surface loading 5-8m of the filtering settling pond3/(m2H), the area in the single lattice filter tank is 20-70m2, width
For 2-6m.
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| CN201820938853.3U CN208883568U (en) | 2018-06-19 | 2018-06-19 | A kind of filtering settling pond integrating filtering, precipitating function |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111170459A (en) * | 2020-02-28 | 2020-05-19 | 苏州市苏创环境科技发展有限公司 | Biological filter with nitrification and denitrification functions |
| CN112174302A (en) * | 2020-10-22 | 2021-01-05 | 四川欧美华环境工程有限公司 | Novel biological aerated filter adopting filter bricks in upward flow |
| CN113893608A (en) * | 2021-10-14 | 2022-01-07 | 中机国际工程设计研究院有限责任公司 | Suspension quick filter device |
-
2018
- 2018-06-19 CN CN201820938853.3U patent/CN208883568U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111170459A (en) * | 2020-02-28 | 2020-05-19 | 苏州市苏创环境科技发展有限公司 | Biological filter with nitrification and denitrification functions |
| CN112174302A (en) * | 2020-10-22 | 2021-01-05 | 四川欧美华环境工程有限公司 | Novel biological aerated filter adopting filter bricks in upward flow |
| CN113893608A (en) * | 2021-10-14 | 2022-01-07 | 中机国际工程设计研究院有限责任公司 | Suspension quick filter device |
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