CN106698807A - Reaction system for biologically and ecologically improving water quality - Google Patents
Reaction system for biologically and ecologically improving water quality Download PDFInfo
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- CN106698807A CN106698807A CN201510802383.9A CN201510802383A CN106698807A CN 106698807 A CN106698807 A CN 106698807A CN 201510802383 A CN201510802383 A CN 201510802383A CN 106698807 A CN106698807 A CN 106698807A
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Abstract
The invention relates to a reaction system for biologically and ecologically improving water quality. The reaction system is composed of a preprocessing device, an ecological multiplication reactor and a stereometric biomembrane reactor which are sequentially connected, wherein the ecological multiplication reactor is composed of a trough body, a waterflow driving device and an alga collection mechanism; a fluid bed and alga which are driven to flow along with sewage stream are placed in the trough body; the stereometric biomembrane reactor comprises a shell, as well as an anaerobic zone, an aerobic zone, a backflow zone, a spoil disposal zone and a membrane water producing zone which are arranged in the shell; the peripheries of the anaerobic zone and the aerobic zone are provided with an integrated separation layer; the backflow zone is formed in an annular region between the separation layer and a barrel body; the top of the separation layer is provided with a water discharge zone; the inner surface, which is corresponding to the water discharge zone, of the barrel body is peripherally provided with a continuous or discontinuous dielectrophoresis (DEP) electrode membrane. By virtue of the reaction system for biologically and ecologically improving the water quality, the sludge is dually purified by virtue of the ecological multiplication reactor and the stereometric biomembrane reactor; the reaction system has the advantages of enhanced removal effect on pollutants such as biological oxygen demand (BOD), total nitrogen (TN) and total phosphorus (TP), energy conservation and consumption reduction, and small occupied area.
Description
Technical field
The present invention relates to technical field of biological sewage treatment, and in particular to a kind of biological and ecological lifts the reaction of Water quality
System.
Background technology
Waste water aerobic biologic treating technique can be divided into biomembrance process and the major class of activated sludge process two.Though activated sludge process is more
Maturation, but there is also many shortcoming and defect, such as floor space are big, capital cost is high, while to water quality, water
The adaptability for measuring change is poor.Biomembrance process can make up many deficiencies of activated sludge process：Good operation stability, without dirt
The advantages of mud expansion, reactor volume high to the clearance of pollutant and small floor space.But traditional biology
Embrane method also has its defect, and such as biofilter is easily blocked, and needs periodically to backwash, while fixed filler and aeration set
Standby replacing is more difficult；Carrier granular competence exertion effect only under fluidized state in biological fluidized-bed reactor,
Make the operation stability of its technique poor.
In recent years, develop on a large scale very much although bio-denitrification technology has, nitrification and denitrification is still independent at two
Or (such as tradition A/O techniques) is carried out in the reactor with different dissolved oxygen concentration for separating, or in time or sky
Between on cause to be carried out (such as oxidation ditch or SBR techniques) in the alternately same reactor of anoxic and aerobic environment.Anoxic
Section and aerobic section use traditional activated sludge process, and sludge and water are contacted in anoxic pond and denitrogenation occurs and removing
After organic matter, then follow-up aerobic section is entered into together carry out decarburization and nitration reaction, after subsequent mud mixture enters
Continuous sedimentation basin carries out mud-water separation, and the sludge after separation is back to anoxic section again.
Because a denitrification process is divided into two independent systems, the two is difficult to be obtained in space, time and condition
It is unified.Therefore general biological denitrification system denitrification effect is poor (generally not over 70%).And in these systems
Also need to set up multiple separate processing units separately, such as must be provided with sludge recirculation system so that capital construction and pipeline equipment are invested
Many, floor space is larger, and operating cost is also high.In addition, according to above-mentioned reaction, nitrifying process needs to add basicity,
And denitrification process is also required to supplementary carbon source, cause system investments high, operating cost is also high.
The content of the invention
The purpose of the present invention is directed to the defect that existing denitrification dephosphorization technique is less efficient, floor space is big, there is provided one
Plant successively by three-dimensional biofilm reactor and ecological micro-iodide device double purified, with enhancing BOD, TN, TP
The small biological and ecological of removal effect, energy-saving, floor space Deng polluter lifts the reaction system of Water quality.
The present invention solves its technical problem and is achieved through the following technical solutions：
A kind of biological and ecological lifts the reaction system of Water quality, it is characterised in that：It includes the pretreatment being sequentially connected
Device, three-dimensional biofilm reactor and ecological micro-iodide device；The three-dimensional membrane bioreactor include shell and
Anaerobic zone, aerobic zone, recirculating zone, sludge discharging area and the film for being arranged at enclosure produce pool, and the shell includes top
Cylinder and bottom reverse taper；The anaerobic zone, aerobic zone are set in turn in the inner barrel of shell from bottom to top,
It is sludge discharging area in reverse taper, reverse taper bottom offers mud discharging mouth；Anaerobic zone bottom is provided with water distributor, water distributor
Water inlet connects the delivery port of pretreatment unit, and aerator is set between anaerobic zone and aerobic zone；Anaerobic zone and aerobic
Area periphery is provided with the separate layer of one, and the annular region between separate layer and cylinder forms recirculating zone；The top of separate layer
Portion sets exhalant region, and is produced from pool in the circumferentially disposed film continuously or discontinuously of cylinder inner surface corresponding with water outlet zone position,
Film produces pool and sets dielectrophoresis electrode DEP films, and anaerobism filler is provided with anaerobic zone, and aerobic filler is provided with aerobic zone；
Ecological micro-iodide device includes the cell body for accommodating sewage, the current drive device being arranged in cell body and setting
Algae harvesting mechanism at the top of cell body；Film produces the water inlet of the delivery port connection cell body in pool, and cell body middle part sets water
Stream drive device, drives current to be produced from the bottom of cell body and is raised up to middle part, by top after, along the side of cell body
The directed circulation that wall flows back to bottom, the algae particle near cell body top enters in algae harvesting mechanism with current；Groove
The micro- aeration film of body inner surface setting.
Described algae harvesting mechanism is made up of harvesting groove and conveyer belt, and harvesting groove is to be arranged on cell body top inner wall superinverse
The groove that the direction of the directed circulation extends, harvesting groove cross section is L-shape, and the galianconism of " L " is connected with cell body, " L "
Long-armed top less than the water surface in cell body；Harvesting groove is made up of the flase floor with gate hole, and buckle is set in harvesting groove
Conveyer belt.
Described current drive device is the fixed diving mixer at the middle part for being arranged at cell body；The current drive dress
Put and micro- aeration film alternation.
Described fluid bed is the activated carbon granule of diameter 0.5-2mm.
The described discharging opening of algae harvesting mechanism and the mud discharging mouth of three-dimensional membrane bioreactor is all connected with fuel supply
Device.
Described dielectrophoresis electrode DEP films include metal plate electrode assemblie, permeable membrane and plate frame, plate frame
Permeable membrane is installed on forward and backward two sides, and metal plate electrode assemblie is set between the permeable membrane；The metal plate electrode assemblie includes
Two panels connects the battery lead plate of AC power difference output end and mutually insulated, the metal plate that the battery lead plate is formed in one respectively
Golden part, including the arrangement of a plurality of flat shape electrode and connect one or one or more sideline of all electrodes simultaneously；Two
The battery lead plate interfolded, makes the electrode of a battery lead plate be placed between two adjacent electrodes of another battery lead plate；It is described flat
The product water out of the product water cavity being provided with plate framework between two permeable membranes of connection.
The battery lead plate is comb-like electrode plate, including a plurality of electrode arranged in parallel, and connects all electricity simultaneously
The a line line of pole one end, the other end of the electrode is free end；The sideline of one battery lead plate is located in another battery lead plate
The free end side of electrode.
The battery lead plate is grid electrode plate, including a plurality of electrode arranged in parallel, and connect the electrode respectively two
The sideline at end.
The battery lead plate is three-dimensional grid electrode plate, including a plurality of electrode arranged in parallel, and connects the electrode respectively
Two ends two sidelines；The two ends bending of the electrode, mutually avoids in interfolded.
Insulating barrier is respectively provided with outside battery lead plate described in two；Or one battery lead plate outside insulating barrier is set, another battery lead plate is for resistance to
The bare electrode that Corrosive Materia is made.
The advantages of the present invention are：
1st, biological and ecological of the invention lifts the reaction system of Water quality, and sewage is by pretreatment removal water body
Enter three-dimensional biofilm reactor after the material such as large particulate matter and the inorganic grains of sand, degraded by reactor organisms,
The polluters such as BOD, TN, TP in removal water body, finally by dielectrophoresis Flat Membrane water outlet.Three-dimensional life
The water outlet of thing membrane reactor enters ecological micro-iodide device, for the purpose of ecological micro-iodide device is quickly rised in value by algae,
While quick increment, the polluter such as BOD, TN, TP in solidification water body is set after ecological micro-iodide device
Algae retracting device, reclaims prolific algae in multiplier, and the algae of recovery carries out reclaiming for follow-up as the energy
Technology utilization.
2nd, biological and ecological of the invention lifts the reaction system of Water quality, employs three-dimensional biofilm reactor,
Nitrification and denitrification process can simultaneously be recurred in three-dimensional biofilm reactor, when can not only save reaction
Between, can also reduce reactor volume, save floor space；Meanwhile, the increased basicity of denitrification process can supplement nitre
The part basicity that change process is reduced, so as to save added amount of chemical；If denitrification process is placed in nitrifying process leading portion,
Also adding for carbon source can be saved.
3rd, biological and ecological of the invention lifts the reaction system of Water quality, employs three-dimensional biofilm reactor,
Without additionally adding medicament and carbon source, operating cost is low.As it was previously stated, during nitration reaction, by 1mg's
NH4+-N is oxidized to NO3-- N, the basicity of 7.14mg is consumed, and in denitrification process, reduce 1mg nitrate nitrogens
The basicity of 3.75mg can be produced.Therefore, in the integrated anaerobic-aerobic system that the present invention is provided, denitrification
Basicity produced by reaction can compensate for half of basicity of nitration reaction consumption or so.To containing ammonia nitrogen concentration waste water not high
(such as sanitary sewage, textile dyeing and finishing industry, electroplating wastewater, beer waste water) separately can throw alkali to adjust pH
Value.
Further, since anoxic Duan Qian, aerobic section rear, although denitrification process needs the certain carbon source of consumption,
But the organic concentration now intake is higher, carbon source is sufficient, and now, denitrifying bacterium is with the organic matter in raw sewage
Carbon source, the oxygen with nitrate in the nitrification liquid of backflow is, by electric body, breathing and vital metabolic activity to be carried out, by nitre state
Nitrogen is reduced to gaseous nitrogen, without additional carbon (such as methyl alcohol).
4th, biological and ecological of the invention lifts the reaction system of Water quality, employs three-dimensional biofilm reactor,
Bioactivity is higher.In traditional denitrification process, nitrifier and denitrifying bacterium are bundled, it is difficult to thoroughly
Separate.Due to the backflow of sludge, nitrifier can enter into denitrification section, because oxygen content is low, therefore nitrifier
Activity can be suppressed, and work as it and be again introduced into one section of process of activity recovery of needs after nitration section with water outlet.Due to
Anoxic section and aerobic section use embrane method, and microorganism is fixed in respective reactor, nitrifier and denitrifying bacterium
Will not be mixed in together, the two thoroughly separate, respectively it is respective with good metabolism environment system in survive,
Bioactivity is in optimal physiological status.And this is very important for guarantee denitrification percent high.
5th, biological and ecological of the invention lifts the reaction system of Water quality, and three-dimensional biofilm reactor uses dielectric
Iontophoretic electrode DEP films, dielectrophoresis electrode DEP films can be very good to retain the activated sludge suspended in scavenging solution, make
Activated sludge need not be flowed back by second pond again, reduced second pond and taken up an area and construction cost.The scavenging solution of backflow
It is sufficiently mixed with sewage, plays a part of dilute sewage, can so reduces impact of the influent COD cr concentration to anaerobic zone,
When CODcr loads become hour, the efficiency for the treatment of is improved；Also the activated sludge for being deposited to water distribution area is made to be gone up again with current
Rise and return to anaerobic zone, prevent the loss of activated sludge.
6th, biological and ecological of the invention lifts the reaction system of Water quality, using the dielectric containing metal plate electrode assemblie
Iontophoretic electrode DEP films, alternating current is applied by metal plate electrode assemblie, so as in dielectrophoresis electrode and infiltration
The neighbouring generation unshapeliness electric field of film, using the solia particle original different from the continuous phase dielectric polarization ability that it is suspended
Solia particle is pushed away electrode or by solia particle absorption on electrode by reason, dielectrophoresis force, is decreased or even eliminated and is oozed
The fouling membrane occurred in permeable membrane technique and stifled film phenomenon, continuously-running are aspirated without batch (-type), it is not necessary to
Line is cleaned, and saves energy consumption.And filter membrane can be very good to retain the activated sludge suspended in scavenging solution, make activated sludge
Need not be flowed back by second pond again, reduce second pond and take up an area and construction cost.
7th, biological and ecological of the invention lifts the reaction system of Water quality, and dielectrophoresis electrode DEP films are used
Battery lead plate in metal plate electrode assemblie is integrally formed by punching press, and the electrode of a plurality of flat shape arrangement is formed with thereon, and
One or one or more sideline of the electrode are connected, interfolded between two panels battery lead plate makes the electricity of two panels battery lead plate
Extremely spaced correspondence is forming electrode group；Battery lead plate is integrally formed by sheet metal process, low production cost, compared with cylinder
Shape electrode reduces cost more than 70%；Any one position connection power supply is that may be such that whole plate is powered, so that electric
Pole and connecting wire are integrated on a sheet metal component；According to metal plate selection quality and the difference of thickness, can possess certain soft
Property or rigidity, it is rollable or open and flat use；When mounted due between each electrode relative position set, can enter
The one of the whole battery lead plate of row is installed, and does not result in the confusion of electrode arrangement.
Brief description of the drawings
Fig. 1 is the functional-block diagram of the reaction system of biological and ecological lifting Water quality of the present invention；
Fig. 2 is the structural representation of the ecological micro-iodide device in the present invention；
Fig. 3 is the structural representation of the three-dimensional biofilm reactor in the present invention；
Fig. 4 is the internal structure schematic diagram of dielectrophoresis electrode DEP films of the invention；
Fig. 5 is the external structure schematic diagram of dielectrophoresis electrode DEP films of the invention；
Fig. 6 is of the invention when two battery lead plates are superimposed, wherein the electrode position distribution for connecting different output ends is illustrated
Figure；
Fig. 7 is electric field of the invention and dielectrophoresis force vector isogram；
Fig. 8 is the electrode plate structure schematic diagram of embodiments of the invention one；
Fig. 9 is the metal plate electrode assemblie structural representation of embodiments of the invention one；
Figure 10 is the electrode plate structure schematic diagram of embodiments of the invention two；
Figure 11 is the electrode plate structure schematic diagram of embodiments of the invention three；
Figure 12 is the front view of the metal plate electrode assemblie of embodiments of the invention three；
Figure 13 is the upward view of the metal plate electrode assemblie of embodiments of the invention three；
Figure 14 is the top view of the metal plate electrode assemblie of embodiments of the invention three；
Figure 15 is the flat membrane component sectional view of embodiments of the invention three.
Description of reference numerals
1- pretreatment units, 2- ecology micro-iodides device, the three-dimensional biofilm reactors of 3-；
21- cell bodies, 22- current drive device, 23- harvestings groove, 24- conveyer belts；
31- anaerobic zones, 32- aerobic zones, 33- recirculating zones, 34- sludge discharging areas, 35- films produce pool, 36- shells, 37- cones
Body, 38- cylinders, 39- mud discharging mouths, 310- aerators, 311- separate layers, 312- water distributors, 313- exhalant regions；314-
Metal plate electrode assemblie, 315- permeable membranes, 316- plate frames, 317- produce water cavity, 318- flow-guiding cloths, 319- product water and go out
Mouth, 320- power supply adapters, 321- first electrodes, 322- second electrodes, 323- comb-like electrodes plate, 324- comb teeth-shapeds
The electrode of battery lead plate, the sideline of 325- comb-like electrode plates, 326- grid electrodes plate, the electrode of 327- grid electrode plates,
The sideline of 328- grid electrode plates, 329- solid grid electrodes plate, the electrode of 330- solid grid electrode plates, 331- stand
The sideline of body grid electrode plate.
Specific embodiment
Below by specific embodiment, the invention will be further described, and following examples are descriptive, is not limit
Qualitatively, it is impossible to which protection scope of the present invention is limited with this.
As shown in figure 1, the reaction system of biological and ecological lifting Water quality of the invention includes the pre- place being sequentially connected
Reason device 1, three-dimensional biofilm reactor 3 and ecological micro-iodide device 2.Pretreatment unit 1 is used to remove sewage
In bulky grain suspended material, the inorganic grit brought into transmitting procedure etc., such as water pH cannot meet two grades of lifes
Change processing requirement, the pH value of sewage need to be also adjusted before ecological micro-iodide device is entered.Three-dimensional biofilm reactor
By the biodegradation of bacterium in 3, BOD (BOD), TN (total nitrogen), the TP in water body are further removed
Polluters such as (total phosphorus).The waste water processed by three-dimensional biofilm reactor 3 enters ecological micro-iodide device 2,
For the purpose of ecological micro-iodide device 2 is quickly rised in value by algae, while the further BOD (biological aerobics in solidification sewage
Amount), TN (total nitrogen), the polluter such as TP (total phosphorus), reach the purpose of lifting water outlet rank.
As shown in Fig. 2 ecological micro-iodide device 2 is reclaiming algae as the purpose of regenerative resource, including cell body
21st, current drive device 22, algae harvesting mechanism, algae harvesting mechanism includes harvesting groove 23 and conveyer belt 24.Its
Middle cell body 21 is used to accommodate sewage, is designed using full impregnated light, and a number of fluid bed is periodically delivered in cell body 21,
For algae apposition growth provides good location, make the quick self duplication of algae, and algae particle is formed based on fluid bed.
Current drive device 22 uses fixed diving mixer, is arranged on the middle part of cell body 21, by uninterrupted stirring, makes
Algae fully and water mixing, and drives current to carry algae particle to be oriented circulation, the reinforcing algal grown cycle,
Strengthen its ability for being attached to fluid bed, while beneficial to the recovery of later stage algae.Micro- aeration is also set up on the inwall of cell body 21
Film, is aerated by bubble-free and cultivates biomembrane on micro- aeration film surface, while biomembrane is metabolized in removal water body
BOD, TN and TP.Current drive device 22 and micro- aeration film can alternation, when current drive device 22 stops transporting
When turning, can be aerated by micro- aeration film, water circulation flowing is driven while Dissolved Oxygen in Water is provided.Due to
Algae cannot carry out photosynthesis at night, it is necessary to a large amount of oxygen carries out respiration, and power is provided in aeration film aeration
Can also be that algae and microorganism provide dissolved oxygen, for its growth needs while circulation.
Harvesting groove 23 is the groove being arranged in the top inner wall of cell body 21, and the direction of inverse directed circulation extends, its cross section
L-shape, the galianconism of " L " is connected with cell body 21, and the long-armed top of " L " is less than the water surface in cell body 21.Harvesting groove
23 is the flase floor with gate hole, and the algae particle near water body top is entered in harvesting groove 23 by flase floor capture,
Water is filtered away by gate hole, and algae particle is stayed in harvesting groove 23.The conveyer belt of buckle is set in harvesting groove 23
24, device is periodically reclaimed to algae particle in harvesting groove 23, becomes renewable resource.Harvesting groove 23
On the side wall of cell body 21 delivery port is set.
Fluid bed is adopted as the activated carbon granule of diameter 0.5-2mm, adheres to and grow to form algae particle beneficial to algae.
Simultaneously because there is certain adsorptivity activated carbon granule also pole, algae can be made around work with the algae in adsorbed water body
Property charcoal particle grown, reduce water body in free algae, facilitate algae to collect.Due in algae particle it is main into
It is divided into activated carbon and algae, is hyperpyrexia quantity of material, the algae particle of collection can be with three-dimensional membrane bioreactor bottom
The activated sludge of portion's discharge together passes through after the pretreatment of fuel supply device, is burnt into reactor, makes water body
In polluter be converted into the burning energy, enhance the recovery of resource.
The loop direction of current is：Raised up to middle part from the bottom of cell body 21, by top after, along cell body 21
Side wall flows back to bottom.In the directed circulation, when algae particle moves to 21 top of cell body, algae can lead to
Crossing sunlight carries out photosynthesis, TN, TP and BOD in solidification water body, while oxygen is discharged, and a part of algae
Class particle enters and is trapped in harvesting groove 23 with current, and remaining algae particle returns to the bottom of cell body 21 and continues cycling through；
When algae particle moves to 21 bottom of cell body, algae consumes oxygen by respiration, while the BOD in decomposer
It is used to synthesize new alga cells.In the presence of directed circulation, algae can carry out self duplication based on fluid bed,
Algae particle is formed, with the growth of algae particle, TN, TP and BOD in intragranular algae resolidification water body,
So circulation.Because with the growth of algae particle, its buoyancy is increasing, the top layer of water body is gradually floated on, therefore
Easily enter harvesting groove 23 in.
As shown in figure 3, three-dimensional biofilm reactor 3 includes anaerobic zone 31, aerobic zone 32, recirculating zone 33, row
Mud area 34, film produce pool 35 and shell 36, wherein sludge discharging area 34, anaerobic zone 31, aerobic zone 32 from bottom to top according to
Secondary setting.The bottom of shell 36 is the reverse taper 37 for accommodating sludge discharging area 34, and the connection of back taper top accommodates anaerobic zone
31 and aerobic zone 32 cylindricality cylinder 38, the bottom of reverse taper 37 offers mud discharging mouth 39.Through shell 36
Water distributor 312 be arranged on the bottom of anaerobic zone 31, aerator 310 is arranged on anaerobic zone 31 and aerobic zone 32
Between, for providing air to aerobic zone 32.The periphery of anaerobic zone 31 and aerobic zone 32 sets the separate layer of one
311, the annular region between separate layer 311 and cylinder 38 is recirculating zone 33.
The top set location of separate layer 311 makes in separate layer 311 less than the edge or apopore of cylinder 38
Water level is less than cylinder 38, and exhalant region 313 is formed on the top of cylinder 38.In cylinder 38 is corresponding with water outlet zone position
The circumferentially disposed film continuously or discontinuously in surface produces pool 35.The film that film product pool 35 of the invention is used is preferably molded-in
The DEP films of dielectrophoresis electrode.
Fixed anaerobism filler is installed, the preferred flexible combination filler of anaerobism filler increases sludge contact in anaerobic zone 31
Area, so as to strengthen the sludge loading of anaerobic zone, fixed mounting means can solidify and be attached to detesting on anaerobism filler
Oxygen activity sludge, makes it not enter aerobic zone 32 with current.
It is the aerobic filler of the drift that can suspend in aerobic zone 32, and strengthens periphery aeration effect with tubular type aerator 310
Really, aerobic filler can carry out random movement with aeration inside whole aerobic zone 32.Aerobic filler preferred surface is attached
The moving bed biological filler of biomembrane, moving bed biological filler can be with curing activity sludge, by aerator 310
Air permeable into aerobic zone 32 enters biomembrane.As oxygen is by microbial consumption, the micro- life in biomembrane
Thing can natural layering, that is, be attached to biofilm surface is nitrifying bacteria community, and denitrifying bacterium and other peculiar bacterium are then attached to
The internal layer of biomembrane, oxidation of coal, nitrification and denitrification process are carried out in the different parts of compound film respectively, to improve
The sludge loading and treatment effeciency in oxygen area.
Water distributor 312 is producing maximum degree of disturbing situation to be issued to water distribution uniformly, in anaerobic zone 31 using annular water distribution
Bottom formed water distribution area.When the reactions start, water distributor 312 is input into sewage to anaerobic zone 31, and sewage is in anaerobism
Compound denitrogenation dephosphorizing process is carried out in area 31 and aerobic zone 32：
In anaerobic zone 31, anti-nitration reaction is carried out by denitrifying bacterium, carbon source is made using the organic matter in sewage, will
NO in sewage3- N and NO2- N is reduced to N2Release N2To air, the purpose of denitrogenation is reached；The activity for flowing back simultaneously
Thermophilic phosphorus bacterium discharges a small amount of phosphorus under anaerobic state in sludge；
In aerobic zone 32, organic matter is degraded by microbial biochemical and continues to decline, and nitrifier is using BOD in water5Make
For hydrogen donor (organic carbon source) is then nitrified organic nitrogen ammonification, make NH3- N concentration is remarkably decreased；With nitrification
The continuation of process, NO in water body3The concentration of-N is continuously increased；Thermophilic phosphorus bacterium, to phosphorus excess ingestion, makes under aerobic situation
The concentration rapid decrease of phosphorus, reaches the purpose of dephosphorization.
The activated sludge that bacterial metabolism is produced is overflow with by the scavenging solution after denitrogenation dephosphorizing by the top of aerobic zone 32
Flow to exhalant region 313, rear portion scavenging solution through filter membrane enter film produce pool 35 outwardly export produce water,
Another part scavenging solution is recycled to the water distribution area around water distributor 312 by recirculating zone 33.Filter membrane can be very good
The activated sludge suspended in retention scavenging solution, makes activated sludge to be flowed back by second pond again, reduces two and sinks
Take up an area and construction cost in pond.
The reflux course of water is：The scavenging solution of backflow is sufficiently mixed with sewage, plays a part of dilute sewage, so may be used
Impact of the influent COD cr concentration to anaerobic zone 31 is reduced, also makes to be deposited to the activated sludge of water distribution area with current again
Anaerobic zone 31 is risen back to, the loss of activated sludge is prevented.The reflux course of activated sludge is：Activated sludge is by mistake
After membrane retention, water distribution area is back to by recirculating zone 33 with scavenging solution, enters back into anaerobic zone 31；Unnecessary activity
Sludge is precipitated in sludge discharging area 34 and accumulated, outside the regular open discharge of mud discharging mouth 39 reactor.Because scavenging solution exists
Flowed back under self gravitation effect, therefore extra power need not be provided, it is energy-saving in running.
As shown in Figure 4,5, the structure of the DEP films of the dielectrophoresis electrode that film product pool 35 of the invention is used is：
Including metal plate electrode assemblie 314, permeable membrane 315, plate frame 316, the forward and backward two sides of plate frame 316 is adopted
Permeable membrane 315 is installed with compression molding fashion, to produce water cavity 317 between two permeable membranes 315, metal plate electrode assemblie 314 sets
Put and producing in water cavity 317.Flow-guiding cloth 318 is respectively provided between two battery lead plates outside and two permeable membranes；Plate frame 316
Side on be provided with connection produce water cavity 317 product water out 319.The preferred ABS material of plate frame 316, puts down
Plate framework 316 and the Sandwich Plates structure that the mounting structure of permeable membrane 315 is replaceable permeable membrane, when permeable membrane 315
It is replaceable when damaged, structural detail recycling.Power supply adapter 320 is provided with plate frame 316.
Embodiment 1 on metal plate electrode assemblie 314：
Metal plate electrode assemblie 314 includes the battery lead plate of two panels mutually insulated, and battery lead plate is directly to be cut in thin metal blank
Cut or stamping forming sheet metal component, including the arrangement of a plurality of flat shape electrode and connect one or one of all electrodes simultaneously
With upper sideline；Two battery lead plate interfoldeds, make the electrode of a battery lead plate be placed between two adjacent electrodes of another battery lead plate
Space in, two battery lead plates connect the difference of AC power by the power supply adapter 320 set on plate frame 316
Output end forms electrode group, and non-well-balanced electric field is produced around.Two battery lead plates can insulate, also can an insulation it is another
Individual is bare electrode；When it is bare electrode to have a battery lead plate, the battery lead plate should be resistant material, or by corrosion-resistant
Treatment.When the phase between two output ends of AC power differs preferably 180 °, in dielectrophoresis electrode and ooze
The neighbouring generation unshapeliness electric field of permeable membrane；And because the frequency of AC power input is different, produced in unshapeliness electric field
Positive dielectrophoresis effect or negative dielectrophoresis effect.
As shown in fig. 6, the first electrode 321 (coating black) in first electrode plate is arranged on the second of second electrode plate
Neutral gear between electrode 322 (coating white), makes first electrode 321 and second electrode 322 be staggered, and constitutes electricity
Pole group；First sideline and the second sideline connect the different output ends of AC power respectively, the first sideline and the second sideline
Shape can be with identical, it is also possible to different.
As shown in fig. 7, when the first sideline and the second sideline are respectively turned on two output end of AC power, electrode is relative
Crest line between form non-uniform electric field, figure is to produce dielectric electricity along the length direction of electrode in dielectrophoresis electrod-array
Swimming force vector and isopleth.
As shown in figure 8, the two panels battery lead plate of the present embodiment is comb-like electrode plate 323, the comb-like electrode plate 323
It is made up of a plurality of electrode 324 arranged in parallel and a line line 325 for connecting the one end of electrode 324 jointly, it is a plurality of flat
The other end of the electrode 324 of row arrangement is free end.The interfolded of two panels comb-like electrode plate 323, two panels comb teeth-shaped
Between left and right every correspondence between the electrode 324 of battery lead plate 323, electrode group is formed.As shown in figure 9, working as two panels battery lead plate
Overlapping when constituting metal plate dielectrophoresis electrode structure, the electrode 324 of the first comb-like electrode plate is from the second comb-like electrode
Inserted between the electrode of plate, form electrode group.Two panels battery lead plate can be so prevented to be in contact in sideline 325 in superposition,
Produce interference.The outer surface of comb-like electrode plate 323 can be respectively provided with insulating barrier, also can one insulate another for naked electricity
Pole plate；When it is bare electrode plate to have a comb-like electrode plate 323, the comb-like electrode plate 323 should be corrosion-resistant material
Material, or by corrosion-resistance treatment.
Embodiment 2 on metal plate electrode assemblie 314：
As shown in Figure 10, the difference with embodiment 1 is that two panels battery lead plate is grid electrode plate 326, the grid shape
Battery lead plate is made up of two sidelines 328 of a plurality of electrode 327 arranged in parallel and the two ends for connecting the electrode.Two sheet gratings
Shape battery lead plate interval stacks, and forms electrode group.Entered using insulating trip between the sideline 328 of two panels grid electrode plate 326
Between-line spacing is stacked.When two panels grid electrode plate 326 is overlapping constitutes metal plate dielectrophoresis electrode structure, in two grid shapes electricity
The insulating trip is set between the sideline 328 of pole plate 326, the sideline 328 of grid electrode plate 326 can be avoided to be in contact,
Can be linked together by sideline 328 due to the two ends of electrode 327, thus electrode position is relatively fixed when mounted,
Need not adjust in the later stage.
Embodiment 3：
As shown in figure 11, the difference with embodiment 2 is that two panels battery lead plate is three-dimensional grid electrode plate 329, should
Three-dimensional grid electrode plate 329 is by a plurality of electrode 330 arranged in parallel and two sidelines 331 at the two ends for connecting the electrode
Constitute, after the two ends of electrode 330 bend to homonymy direction, then connect two sidelines respectively.Preferred mode is：Electricity
After the two ends of pole 330 perpendicular to the direction of electrode to bending, then to the direction 90-degree bent parallel to electrode 330,
Form stepped, make the middle part of electrode 330 raised relative to two ends.As shown in Figure 12 and Figure 13, two panels solid grid
The outer portions interval of shape battery lead plate 329 stacks, and is mutually handed between the electrode 330 of two panels solid grid electrode plate 329
Mistake is stacked, and forms electrode group.As shown in figure 14, because the two ends of electrode 330 bend, therefore two three-dimensional grid shape electricity
There is gap between the sideline 331 of pole plate 329, can mutually avoid automatic insulation.As shown in figure 15, two battery lead plate
Relative sideline between fixture is set, two battery lead plates are fixed as one.
The course of work that inside sets the dielectrophoresis electrode DEP films of metal plate electrode assemblie 14 is：
Dielectrophoresis electrode DEP films involved in the present invention are soaked in waste water to be processed needed for casing cylinder top
In, due to the dielectric polarization ability lower relative to water, solid particle is usually expressed as negative dielectric electricity in waste water
Swimming property；I.e. in unshapeliness electric field, solid particle is moved to light current field direction.As shown in Figure 2 and Figure 3, give up
Water by permeable membrane 15 surface, metal plate electrode assemblie 14 in permeable membrane 15 provided needed for dielectrophoresis force
Unshapeliness electric field.When solid particle is near permeable membrane 15 in waste water, in the presence of dielectrophoresis force, solid
Grain is moved to the direction away from permeable membrane 15, and so decreasing or even eliminating fouling membrane and stifled film must occur；Water purification passes through
The product water cavity 17 that permeable membrane 15 enters between two permeable membranes 15, then the product water out 19 by being connected with product water cavity 17
Discharge.
Although disclosing embodiments of the invention and accompanying drawing for the purpose of illustration, those skilled in the art can manage
Solution：Do not depart from the present invention and spirit and scope of the appended claims in, various replacements, change and modifications all be can
Can, therefore, the scope of the present invention is not limited to embodiment and accompanying drawing disclosure of that.
Claims (10)
1. a kind of biological and ecological lifts the reaction system of Water quality, it is characterised in that：It includes the pre- place being sequentially connected
Reason device, three-dimensional biofilm reactor and ecological micro-iodide device；The three-dimensional membrane bioreactor includes shell
And be arranged at the anaerobic zone of enclosure, aerobic zone, recirculating zone, sludge discharging area and film and produce pool, the shell includes upper
The cylinder in portion and the reverse taper of bottom；The anaerobic zone, aerobic zone are set in turn in the inner barrel of shell from bottom to top,
It is sludge discharging area in reverse taper, reverse taper bottom offers mud discharging mouth；Anaerobic zone bottom is provided with water distributor, water distributor
Water inlet connects the delivery port of pretreatment unit, and aerator is set between anaerobic zone and aerobic zone；Anaerobic zone and aerobic
Area periphery is provided with the separate layer of one, and the annular region between separate layer and cylinder forms recirculating zone；The top of separate layer
Portion sets exhalant region, and is produced from pool in the circumferentially disposed film continuously or discontinuously of cylinder inner surface corresponding with water outlet zone position,
Film produces pool and sets dielectrophoresis electrode DEP films, and anaerobism filler is provided with anaerobic zone, and aerobic filler is provided with aerobic zone；
Ecological micro-iodide device includes the cell body for accommodating sewage, the current drive device being arranged in cell body and setting
Algae harvesting mechanism at the top of cell body；Film produces the water inlet of the delivery port connection cell body in pool, and cell body middle part sets water
Stream drive device, drives current to be produced from the bottom of cell body and is raised up to middle part, by top after, along the side of cell body
The directed circulation that wall flows back to bottom, the algae particle near cell body top enters in algae harvesting mechanism with current；Groove
The micro- aeration film of body inner surface setting.
2. a kind of biological and ecological according to claim 1 lifts the reaction system of Water quality, it is characterised in that：
Described algae harvesting mechanism is made up of harvesting groove and conveyer belt, and harvesting groove is to be arranged on described in cell body top inner wall superinverse
The groove that the direction of directed circulation extends, harvesting groove cross section is L-shape, and the galianconism of " L " is connected with cell body, the length of " L "
Arm top is less than the water surface in cell body；Harvesting groove is made up of the flase floor with gate hole, and the biography of buckle is set in harvesting groove
Send band.
3. a kind of biological and ecological according to claim 1 lifts the reaction system of Water quality, it is characterised in that：
Described current drive device is the fixed diving mixer at the middle part for being arranged at cell body；The current drive device and
Micro- aeration film alternation.
4. a kind of biological and ecological according to claim 1 lifts the reaction system of Water quality, it is characterised in that：
Described fluid bed is the activated carbon granule of diameter 0.5-2mm.
5. a kind of biological and ecological according to claim 1 and 2 lifts the reaction system of Water quality, its feature
It is：The described discharging opening of algae harvesting mechanism and the mud discharging mouth of three-dimensional membrane bioreactor is all connected with fuel supply
Device.
6. a kind of biological and ecological according to claim 1 lifts the reaction system of Water quality, it is characterised in that：
Described dielectrophoresis electrode DEP films include metal plate electrode assemblie, permeable membrane and plate frame, before plate frame,
Permeable membrane is installed on two sides afterwards, and metal plate electrode assemblie is set between the permeable membrane；The metal plate electrode assemblie includes two panels
The battery lead plate of AC power difference output end and mutually insulated, the metal plate that the battery lead plate is formed in one are connected respectively
Part, including the arrangement of a plurality of flat shape electrode and connect one or one or more sideline of all electrodes simultaneously；Two institutes
Battery lead plate interfolded is stated, the electrode of a battery lead plate is placed between two adjacent electrodes of another battery lead plate；The flat board
The product water out of the product water cavity being provided with framework between two permeable membranes of connection.
7. a kind of biological and ecological according to claim 6 lifts the reaction system of Water quality, it is characterised in that：
The battery lead plate is comb-like electrode plate, including a plurality of electrode arranged in parallel, and connects all electrodes one simultaneously
The a line line at end, the other end of the electrode is free end；The sideline of one battery lead plate is located at electrode in another battery lead plate
Free end side.
8. a kind of biological and ecological according to claim 6 lifts the reaction system of Water quality, it is characterised in that：
The battery lead plate is grid electrode plate, including a plurality of electrode arranged in parallel, and connect the two ends of the electrode respectively
Sideline.
9. a kind of biological and ecological according to claim 6 lifts the reaction system of Water quality, it is characterised in that：
The battery lead plate is three-dimensional grid electrode plate, including a plurality of electrode arranged in parallel, and connect the electrode respectively two
Two sidelines at end；The two ends bending of the electrode, mutually avoids in interfolded.
10. a kind of biological and ecological according to claim 6-9 lifts the reaction system of Water quality, and its feature exists
In：Insulating barrier is respectively provided with outside battery lead plate described in two；Or one battery lead plate outside insulating barrier is set, another battery lead plate is for resistance to
The bare electrode that Corrosive Materia is made.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2019151963A1 (en) * | 2017-12-05 | 2019-08-08 | Anadolu Universitesi | Membrane bioreactor for nitrate removal from ground water |
| CN110255788A (en) * | 2019-07-29 | 2019-09-20 | 马鞍山市新桥工业设计有限公司 | A kind of garbage sorting pretreatment system |
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| CN102659244A (en) * | 2012-05-22 | 2012-09-12 | 苏州科技学院 | Integrated internal circulation type denitrification and decarburization bio-membrane reactor and operating method thereof |
| CN103463986A (en) * | 2013-09-10 | 2013-12-25 | 内蒙古天一环境技术有限公司 | Dielectrophoresis flat osmotic membrane element |
| CN104071896A (en) * | 2014-07-06 | 2014-10-01 | 太原大学 | Granule sludge and biological film coupled integrated sewage treatment method and treatment device suitable for same |
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| CN101259983A (en) * | 2007-12-14 | 2008-09-10 | 深圳大学 | Method and device for removing nitrogen and phosphorus in immobilized phycomycete coupling membrane separation process |
| CN102659244A (en) * | 2012-05-22 | 2012-09-12 | 苏州科技学院 | Integrated internal circulation type denitrification and decarburization bio-membrane reactor and operating method thereof |
| CN103463986A (en) * | 2013-09-10 | 2013-12-25 | 内蒙古天一环境技术有限公司 | Dielectrophoresis flat osmotic membrane element |
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| WO2019151963A1 (en) * | 2017-12-05 | 2019-08-08 | Anadolu Universitesi | Membrane bioreactor for nitrate removal from ground water |
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