CN101481175B - V shaped groove type microgrid component capable of continuously on-line updating dynamic membrane and use method thereof - Google Patents
V shaped groove type microgrid component capable of continuously on-line updating dynamic membrane and use method thereof Download PDFInfo
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- CN101481175B CN101481175B CN200910067870XA CN200910067870A CN101481175B CN 101481175 B CN101481175 B CN 101481175B CN 200910067870X A CN200910067870X A CN 200910067870XA CN 200910067870 A CN200910067870 A CN 200910067870A CN 101481175 B CN101481175 B CN 101481175B
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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
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The invention relates to a V-shaped slot type cube micronet assembly and an application method thereof for continuously renewing a dynamic film, which comprises a micronet net body. The invention is characterized in that the V-shaped slot type cube micronet assembly is also provided with a pane-shaped shell sleeve, a guidance track with a T-shaped cross section, reverse flushing water pipes, a water collection bank of air injection flushing pipes and a walk mechanism, wherein the micronet net body is a cubic micronet net body formed by a plurality of layers of micronets of various calibers which are superposed, fixed by a frame into shape and connected in parallel by a plurality of rows of V-shaped slots, and the bottom of the micronet net body is hermetically connected with a bottom net; a plurality of closed net chambers are formed between the micronet net body and the bottom net, and ceramic granule balls are placed in the closed net chambers; the guidance track is arranged in the center of the shell sleeve, two micronet net bodies are symmetrically arranged on both sides of the guidance track, the top of the guidance track is provided with the walk mechanism driving the reverse flushing water pipes and the air injection flushing pipes on both sides to synchronously and continuously reciprocate, and 0.5 percent to 1 percent of environmental mineral material is added in mixed liquid for application. The invention has the advantages of low manufacturing cost, small size, high flux, good out-water quality, high water-out rate, power and control system optimization and simplification, low energy consumption and low cost.
Description
Technical field
The present invention relates to a kind of dirt, field of waste water treatment membrane biological reactor process membrane module, relate in particular to a kind of V-shaped groove formula cubes micro-net component and application method thereof that reaches the continuous renewal Dynamic Membrane of micro-filtration solid-liquid separation effect with environmental mineral, microbial bacteria micelle and fine filter screen (industry general designation microgrid) synergy that have.
Background technology
The research and development of membrane bioreactor (Membrane Bio Reactor is called for short MBR) have only nearly 30 years history, and real sizable application was less than 20 years.It is a kind of novel water treatment device that dirt, biological wastewater treatment technology and membrane separation technique are combined.High-quality solid-liquid separation effect that membrane biological reactor process had and high density, long mud active sludge in the age removal effect higher to organism make it become the optimization synthetic water treatment process that a kind of effluent quality is good, floor space is little, surplus sludge volume is low, easily be automated.In water treatment field, especially obtaining using comparatively widely aspect dirt, the waste water reclaiming engineering.Yet exist following shortcoming and obstacle in MBR technology popularization process: (1) MBR adopts special-purpose membrane pore size to hold back mud at micro-filtration or hyperfiltration membrane assembly below 1 micron, and aquifer yield is low, is difficult to satisfy the requirement of large-scale application; (2) traditional membrane module cost height, and the control process relative complex of operation make initial cost higher; (3) membrane module occurs because of concentration polarization, pollution easily, wears out its flux to be descended and produce and stop up, and causes work-ing life low; Especially for making filtered water pass through membrane module, high pressure suction water pump and associated function unit need be set in using, maintenance simultaneously need be than high-technology condition, so operation energy consumption, expense are higher, have limited fairly large application and the popularization of membrane module.
In recent years, the MBR field begins to occur to the Dynamic Membrane Research of Separation Technique, be characterized in common poroid material typically refer to the aperture more than 400 orders as Stainless Steel Cloth, nylon mesh, the chemical fibre silk screen, fine filter screen such as non-woven fabrics (industry general designation microgrid) replaces traditional micro-filtration or ultra-filtration membrane to make micro-net component, during use, micro-net component places bioreactor mixed solution, in the working cycle of sewage disposal, along with the carrying out of biochemical reaction and filtration procedure, microbial bacteria micelle precipitation is also referred to as Dynamic Membrane attached to forming the biomass layer that comes off of periodically growing on the microgrid.The formation of this film has improved the strainability as the microgrid medium of supporter, and Dynamic Membrane has activity, flexibility and adsorptivity, and the height of its disintegrate-quality and the size of flux are decided by activity, density, the thickness of film and pass through pressure; Under certain control condition, Dynamic Membrane can reach and the above-mentioned solid type tradition MBR technology identical micro-filtration separating effect of membrane module, but the transmembrane pressure of its convection cell requires well below traditional MBR membrane module, and the membrane module material is easy to get, cheap, engineering cost be can significantly reduce, large-scale application and popularization therefore are easy to.Yet this technology is still immature at present, still is in development.Existing Dynamic Membrane micro-net component is generally planar shaped, is similar to classic flat-plate shape MBR membrane module, and prolongs with the cross flow filter of conventional film assembly MBR technology and control Dynamic Membrane thickness and reduce film and pollute and prolong with shutdown interruption backwash mode and guarantee membrane flux.Cross-flow is to utilize turbulent shear and souring to come the attached collection of contaminant restraining matter on the film surface, it is very effective that this reduces pollution for the MBR membrane module, but concerning to utilize pollution substance to carry out to have a negative impact the activity of solid-liquid separation and the flexible Dynamic Membrane, turbulent flow makes the quality softness, a little less than filter screen sticking power, especially generate in experience, grow up, the easier disengaging microgrid of biomass layer that aperiodicity comes off itself will occur in ripe, weak, the dead metabolic processes, cause the irregular leakage of suspended matter; Cross-flow is except that embodying the surface shear souring, there is normal vibration effect simultaneously to face, this normal vibration makes coating growth evenly impossible, the face centre is difficult to form effective gel coat because of amplitude is too high, therefore, the Dynamic Membrane that cross-flow mode is moved is to the dissolved organic matter of the larger molecular weight poor effect of damming; Cross-flow is sheared to wash away with the normal vibration effect and is also very easily made dynamic rete " leak " occur, makes the irregular fluctuation of delivery turbidity and is difficult to be controlled at higher level, and total plate count exceeds standard; Especially in use because of rete thickens, it is too much to adhere to dirt, and flux descends needs the enough water or the mixed water of gas of big flow when carrying out back flushing, make the back flushing plant capacity big, and resource cost, energy consumption height are interrupted and use, the lness ratio of plant height; After the back flushing,, make water rate be difficult to improve because of producing the interference water of a large amount of filtered during the Dynamic Membrane regeneration.These disadvantageous effects cause that existing Dynamic membrane is in that effluent quality is stable inadequately, membrane area is difficult to amplify, water rate is lower, still can not realize the technical bottleneck of large-scale application, have limited the engineering utilization of Dynamic membrane.
In sum, how to overcome the problems referred to above, the Dynamic Membrane isolation technique can reach traditional MBR membrane module effluent quality to realize adopting cheaply, and improves flux and water rate, can reach the minimizing energy consumption again, and the purpose that reduces cost becomes the industry concerned issue.
Summary of the invention
Main purpose of the present invention is: (1) is at the problems referred to above, provide that a kind of cost is low, volume is little, effluent quality is good, flux height, high also optimization of water rate are simplified power and Controlling System, realize less energy-consumption, upgrade the V-shaped groove formula cubes micro-net component of Dynamic Membrane cheaply continuously; (2) provide a kind of method that adopts aforementioned micro-net component to carry out dirt, waste water filtering.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of V-shaped groove formula cubes micro-net component of continuous renewal Dynamic Membrane comprises the microgrid dictyosome that supports Dynamic Membrane, it is characterized in that
AlsoBe provided with square frame shape valve jacket, T section guide rail, back flushing water pipe, jet flush pipe is received mill weir, travel mechanism; Described microgrid dictyosome is to be the microgrid stack of the different apertures of 300～500 purposes and to be configured as the cubes microgrid dictyosome that is connected to form side by side by the multiple row V-shaped groove according to skeletal fixation by the multilayer aperture, and the aperture that is tightly connected, its bottom is 50～100 purpose spacer screens; The some vertical bar shaped sealing solarium that forms between the V-shaped groove of microgrid dictyosome and the spacer screen is separated into plurality of segments sealing solarium by a plurality of horizontal separation orifice plate that is provided with on the skeleton, places 2～3 layers of energy dancing haydite ball under the thrust that makes progress on the spacer screen of each segmentation sealing solarium correspondence; Described T section guide rail is parallel to the valve jacket sidewall and is arranged at valve jacket central authorities, two microgrid dictyosomes are parallel to the valve jacket sidewall with V-shaped groove and are symmetricly set in T section guide rail both sides, the fixedly connected valve jacket of difference, inboard fixedly connected T section guide rail respectively outside two microgrid dictyosomes; Place mixed solution the top of microgrid dictyosome open, be clear water zone, clear water is discharged by the receipts mill weir that is arranged on sheath body top; The spacer screen bottom is the mixed solution water entering surface; Be higher than that the T section guide rail top of receiving mill weir is provided with configuration water source and source of the gas and along the T section guide rail reciprocal travel mechanism of operation continuously, described back flushing water pipe is arranged on microgrid dictyosome top across the microgrid dictyosome, connects the fluid jetting head of a plurality of and the corresponding setting of each V-shaped groove below the back flushing water pipe; Described jet flush pipe is crossed water pipe across microgrid dictyosome and back flushing and is positioned at same plane and is arranged on microgrid dictyosome below, and corresponding described spacer screen is provided with some production wells above the jet flush pipe; Described travel mechanism by two hydraulic pipes that connect the water source be tightly connected respectively the back flushing water pipe of being located at its both sides, be tightly connected respectively by two pneumatic tubes that connect source of the gas and be located at the jet flush pipe of its both sides; Be provided with respectively on hydraulic pipe that described two microgrid dictyosomes connect separately and the pneumatic tube and be used to make hydraulic pipe, the pneumatic tube while open and close of microgrid dictyosome separately, and when described travel mechanism is finished unidirectional stroke and is commutated, between two hydraulic pipes and open and close the interlock motorized valve of conversion between two pneumatic tubes.
Its vertical portion of described T section guide rail is divided into passage, and the horizontal top of passage both sides is the walking guide rail; Described travel mechanism comprises the movable stand that is arranged at described walking guide rail top, be installed on the motor on the movable stand, step-down gear, transmitting gear, wheel shaft, vernier switch reaches the electric control box of controlling described interlock motorized valve switching and described motor traffic direction by vernier switch, vernier switch is separately positioned on movable stand and the corresponding both sides of described sheath body end wall, motor via reducer connects transmitting gear, transmitting gear is fixedlyed connected with wheel shaft, by the rolling of set in two rollers of the wheel shaft of walking on the guide rail, travel mechanism moves; Described source of the gas is taken from the aerator inlet pipe or is set up pneumatic pump, and described two pneumatic tubes that are fixed on the movable stand are connected to two jet flush pipes respectively by the vertical passage partly of described T section guide rail; Described water source is a clear water zone, the high-pressure hydraulic pump that is fixed on the movable stand connects clear water zone by pump water inlet, connect two hydraulic pipes respectively by pumping line, described pumping line is provided with water regulating valve, and the inlet pipe that connects two pneumatic tubes is provided with air volume regulating valve.
Described a plurality of fluid jetting head shape and V-shaped groove shape are coincide, and insert respectively in each V-shaped groove, and its both sides that recline the V-shaped groove groove face have posticum.
Described haydite ball is that diameter is the circular haydite ball of 4～10mm.
Adopt the V-shaped groove formula cubes micro-net component of above-mentioned continuous renewal Dynamic Membrane to carry out the method for dirt, waste water filtering, it is characterized in that may further comprise the steps:
(1). contain the formation of environment mineral material and the zoogleic Dynamic Membrane of microorganism
At first contain existing that to add 5 ‰～1% particle diameter in the zoogleic treatment sewage mixed solution of microorganism by weight percentage be 100 orders～one or more environment mineral materials of 400 purposes, then described micro-net component is placed horizontally in the water of bio-reactor aerobic zone or aeration biochemical pond upper end, adjust suitable immersion depth, under aeration air pressure and hydraulic pressure acting in conjunction, mixed solution is entered by the bottom of micro-net component continuously, run through micro-net component, flow out from top, with the circulation of liquid stream, environment mineral material and microbial bacteria micelle have activity attached to forming on the microgrid dictyosome, the dynamic rete of flexibility and characterization of adsorption;
(2). filter and generate clear water
Under the aeration air pressure and hydraulic pressure acting in conjunction of continuation in step (1), mixed solution is by dynamic membrane filtering, and suspended matter and fine colloidal solid are blocked and are adsorbed on described microgrid dictyosome water entering surface, and the clear water after the purification flows out from water outlet through receiving mill weir;
(3). online gas, water clean and the renewal Dynamic Membrane
Through filtration after a while, Dynamic Membrane is active to be reduced, rete thickens, the filtered liquid flux descends, open described electric control box switch, the air volume regulating valve of high-pressure hydraulic pump rising pipe water regulating valve and inlet pipe, under the control of electric control box, motor via reducer, transmitting gear drives wheel shaft and rotates, travel mechanism drive back flushing water pipe and jet flush pipe speed with 0.1～10m/h between the sheath body end walls are moved continuously, and in the process of walking by described two vernier switches and corresponding described sheath body end wall collision realization travel mechanism reciprocating reversing operation, meanwhile, under electric control box control, realize the back flushing water pipe of travel mechanism both sides synchronously with walking mechanism reciprocating reversing, the alternation of jet flush pipe; Backwashing water, on gaseous blast slowly continuously synergy under, make the Dynamic Membrane metabolism, come off, grow to interlock and realize online updating; Go round and begin again and repeat above-mentioned Dynamic Membrane cleaning, renewal process, stop until filter operation.
Described environment mineral material is diatomite, zeolite, sepiolite, Attapulgite, vermiculite and activity charcoal powder.The invention has the beneficial effects as follows:
(1) adopts the V-shaped groove net cubes assembly that declines, can provide a kind of turbulent flow is promptly stablized up-flow into laminar flow dead-end filtration mode that becomes, under the acting in conjunction of V-shaped groove, sealing spacer screen, haydite ball, separation orifice plate and receipts mill weir, created and be suitable for Dynamic Membrane generation, metabolic good stable waterpower environment, it can effectively avoid turbulent flow vibration cause dynamic rete generate inhomogeneous, easily come off and produce " leak " problem, as stabilizing and increasing the assurance of providing the foundation property of effluent quality; (2) adopt the V-shaped groove net cubes assembly that declines, improved the membrane filtration area under the unit volume, improve flux and also reduce device volume, especially compare with traditional MBR membrane module, the microgrid price is low, significantly reduces manufacturing cost; (3) adopt the jet flush pipe of being located in the same perpendicular of the backwash liquid shower nozzle that slowly moves to realize the continuous online backflushing of microgrid Dynamic Membrane is washed and sheared and peel off, since speed slowly and moment only to washing away along the local Dynamic Membrane on the microgrid in pipeline zone, therefore give the growth of new Dynamic Membrane with enough perdurabilities, especially adopt jet flush pipe and circular haydite chou to close, random jump by the indoor circular haydite ball of segmentation close-network reaches abundant shearing, the water entering surface of friction microgrid, film is fully come off, this water, gas synergy reaches old film and removes and the new film optimum alternate cycles of growing, effectively control thickness, both guaranteed flux, do not start a leak again, prevent that suspended matter and fine colloidal solid from passing filter screen and guaranteeing that effluent quality is good, the water rate height; (4) add environment mineral material in the mixed solution, after the dynamic rete on the microgrid was by instantaneous washing open, environment mineral material was in time filled up the microgrid hole under the hydraulic pressure effect, suppressed suspended matter and fine colloidal solid and passed microgrid, made to disturb to be reduced to minimum level; Environment mineral material directly is wrapped in easier peeling off on the microgrid as the microgrid packing layer than organism in addition, helps the protection to micro-net component, makes it the degree of depth not occur and pollutes, and therefore reduces the energy consumption of back flushing; (5) add the water of certain pressure and enough big flow with tradition or the interruption backwash mode of the mixed water of gas is compared, the present invention uses the permeate water of Dynamic Membrane as backwashing water, because of consumption is extremely low, has very high effective permeability rate; Compare with the high gas-water ratio of employing cross-flow rinse mode in the existing membrane biological reactor process, on-line cleaning method of the present invention, requirement to air demand is no more than normal nitrated needed air demand, plant capacity is also far below traditional membrane biological reactor process, significantly economize on resources and install cost, cut down the consumption of energy, and to make the back flushing plant factor be 100%.This continuous on-line cleaning method efficiently solves existing effective permeability rate and crosses low and the too high problem of back flushing lness ratio of plant.The present invention can be installed in any type of aerobic biochemical pond as independent solid-liquid separation assembly, can satisfy the requirement of large-scale application.
Description of drawings
Fig. 1 is a plan structure synoptic diagram of the present invention;
Fig. 2 is the A-A cross section view of Fig. 1.
Below in conjunction with drawings and Examples to the detailed description of the invention.
Embodiment
Fig. 1-Fig. 2 illustrates a kind of V-shaped groove formula cubes micro-net component of continuous renewal Dynamic Membrane, comprise the microgrid dictyosome that supports Dynamic Membrane, it is characterized in that also being provided with square frame shape valve jacket 25, T section guide rail 40, back flushing water pipe 2-1,2-2, jet flush pipe 7-1,7-2, receive mill weir 1-1,1-2, travel mechanism 30; Above-mentioned microgrid dictyosome is to be the microgrid stack of the different apertures of 300～500 purposes and to be configured as the cubes microgrid dictyosome that is connected to form side by side by the multiple row V-shaped groove according to skeletal fixation by the multilayer aperture, and the aperture that is tightly connected, its bottom is 50～100 purpose spacer screens 65; The some vertical bar shaped sealing solarium that forms between the V-shaped groove of microgrid dictyosome and the spacer screen is separated into plurality of segments sealing solarium by a plurality of horizontal separation orifice plate 66 that is provided with on the skeleton, place 2～3 layers of energy commercially available haydite ball 64 of dancing under the thrust that makes progress on the spacer screen of each segmentation sealing solarium correspondence, the haydite ball is that diameter is the circular haydite ball of 4～10mm, has placed 3 layers in the present embodiment.In actual fabrication, above-mentioned skeleton mainly is made of press strip 62, keel 63, a plurality of separation orifice plate 66, adopt in this example and be respectively 310 orders, 390 orders, three layers of microgrids stack of 500 orders from the bottom to top and be configured as V-shaped groove shape cubes microgrid dictyosome according to skeleton, microgrid is supported on keel 63 and separates on the orifice plate 64, and V-shaped groove bending top up and down is also fixing with holding bolt 61 along being pressed in by press strip 62 on the keel 63.
Above-mentioned T section guide rail 40 is parallel to valve jacket 25 sidewalls and is arranged at valve jacket central authorities, two above-mentioned microgrid dictyosome 6-1,6-2 are parallel to the both sides that the valve jacket sidewall is symmetricly set in T section guide rail 40 with V-shaped groove, and the outside of two microgrid dictyosome 6-1,6-2 is fixedly connected valve jacket 25, inboard fixedly connected T section guide rail 40 respectively respectively; In the present embodiment, the outside of microgrid dictyosome 6-1,6-2 respectively by skeleton by the top fixedly batten 10 and bottom fixedly batten 8 be fixedly connected on sheath body 25 two sides, fixedly batten 10 can make filtered water pass through for having the orifice plate in some holes like this; The inboard of microgrid dictyosome 6-1,6-2 respectively by skeleton by the fixing fixing batten 8 fixedly connected T section guide rails 40 in batten 10 and bottom in top.Place mixed solution the top of microgrid dictyosome 6-1,6-2 open, be clear water zone, the clear water water outlet 31, the water outlet 32 of receiving mill weir 1-2 of the receipts mill weir 1-1 by being arranged on sheath body top is respectively discharged; Spacer screen 65 bottoms are the mixed solution water entering surface; Be higher than that T section guide rail 40 tops of receiving mill weir 1-1,1-2 are provided with configuration water source and source of the gas and along the T section guide rail reciprocal travel mechanism 30 of operation continuously, above-mentioned back flushing water pipe 2-1,2-2 are arranged on microgrid dictyosome top across microgrid dictyosome 6-1,6-2 respectively, connect fluid jetting head 20 a plurality of and the corresponding setting of each V-shaped groove below the back flushing water pipe, the shape of fluid jetting head 20 and V-shaped groove shape are coincide, and insert respectively in each V-shaped groove, its both sides that recline the V-shaped groove groove face have posticum 20-1.Above-mentioned jet flush pipe 7-1,7-2 cross water pipe 2-1,2-2 across microgrid dictyosome 6-1,6-2 and back flushing respectively and are positioned at same plane and are arranged on microgrid dictyosome below, and jet flush pipe 7-1, corresponding above-mentioned spacer screen 65 is provided with some production wells 70 above the 7-2.In the present embodiment, above-mentioned back flushing water pipe 2-1,2-2 two ends are provided with roller 11 respectively, roll on the fixedly batten 10 at microgrid dictyosome top by roller 11, realize smooth running.Equally, above-mentioned jet flush pipe 7-1,7-2 two ends are provided with roller 9 respectively, roll on the fixedly batten 8 of microgrid dictyosome bottom by roller 9, realize smooth running.Back flushing water pipe 2-1,2-2 that above-mentioned travel mechanism 30 is tightly connected respectively and is located at its both sides by two hydraulic pipe 3-1, the 3-2 that connects the water source, and be tightly connected respectively by two pneumatic tube 16-1, the 16-2 that connects source of the gas and be located at jet flush pipe 7-1, the 7-2 of its both sides; Be provided with respectively on hydraulic pipe 2-1, the 2-2 that above-mentioned two microgrid dictyosome 6-1,6-2 connect separately and pneumatic tube 16-1, the 16-2 and be used to make hydraulic pipe, the pneumatic tube while open and close of microgrid dictyosome separately, and when above-mentioned travel mechanism 30 is finished unidirectional stroke and is commutated, between two hydraulic pipes and open and close the interlock motorized valve of conversion between two pneumatic tubes.In this example, pneumatic tube 16-1,16-2, hydraulic pipe 3-1,3-2 are provided with interlock motorized valve 5-1,5-2,5-3,5-4 respectively, and when described travel mechanism 30 is finished unidirectional stroke and carried out, open and close conversion between interlock motorized valve 5-1, the 5-2 of two pneumatic tubes and between interlock motorized valve 5-3, the 5-4 of two hydraulic pipes.
Above-mentioned T section guide rail 40 its vertical portions are divided into passage, and the horizontal top of passage both sides is walking guide rail 4-1,4-2; Above-mentioned travel mechanism 30 comprises the movable stand 13 that places described walking guide rail top, be installed on the motor 18 on the movable stand 13, step-down gear 21, transmitting gear 17, wheel shaft 19, vernier switch 9-1,9-2 reaches the electric control box 33 of controlling above-mentioned interlock motorized valve switching and above-mentioned motor traffic direction by vernier switch, vernier switch 9-1,9-2 is separately positioned on movable stand 13 and described sheath body end wall 25-1, the both sides of 25-2 correspondence, motor 18 connects transmitting gear 17 by step-down gear 21, transmitting gear 17 is fixedlyed connected with wheel shaft 19, by the rolling of set in two rollers 14 of the wheel shaft of walking on the guide rail, travel mechanism 30 moves;
In the present embodiment, on movable stand 13, be provided with electric operated control box 33, be used for controlling above-mentioned motor 18 inverted runnings and the synchronous opening and closing operations of link motorized valve 5-1,5-2,5-3,5-4 by vernier switch 9-1,9-2.Pilot circuit in the electric operated control box 33 is existing custom circuit.Above-mentioned source of the gas is that the source of the gas of inlet pipe 16 of the present invention is taken from the aerator inlet pipe or set up pneumatic pump; The above-mentioned two pneumatic tube 16-1, the 16-2 that are fixed on the movable stand 13 by anchor 50 are connected to two jet flush pipe 7-1,7-2 respectively by above-mentioned T section guide rail 40 vertical passages partly; Above-mentioned water source is a clear water zone, the high-pressure hydraulic pump 15 that is fixed on the movable stand 13 connects clear water zone by pump water inlet 15-1, connect two hydraulic pipe 3-1,3-2 respectively by pumping line, pumping line is provided with water regulating valve 53, is used to control the size of the back flushing water yield; The inlet pipe 16 that connects two pneumatic tubes is provided with air volume regulating valve 52, is used to control the size of jet flush pipe air-flow.
Below carry out the method for dirt, waste water filtering, it is characterized in that may further comprise the steps for the V-shaped groove formula cubes micro-net component that adopts above-mentioned continuous renewal Dynamic Membrane:
(1). contain the formation of environment mineral material and the zoogleic Dynamic Membrane of microorganism
At first contain existing that to add 5 ‰～1% particle diameter in the zoogleic treatment sewage mixed solution of microorganism by weight percentage be 100 orders～one or more environment mineral materials of 400 purposes, environment mineral material is diatomite, zeolite, sepiolite, Attapulgite, vermiculite and activity charcoal powder, has adopted particle diameter 380 purpose diatomite, particle diameter 250 purpose zeolites and particle diameter 170 purpose sepiolites in this example; Then described micro-net component is placed horizontally in the water of bio-reactor aerobic zone or aeration biochemical pond upper end, adjusts suitable immersion depth, the pressure that passes through of Dynamic Membrane requires very lowly, and only needing suitably to adjust the immersion depth of micro-net component in mixed solution can realize; Under aeration air pressure and hydraulic pressure acting in conjunction, mixed solution is entered by the bottom of micro-net component continuously, run through micro-net component, flow out from top, with the circulation of liquid stream, environment mineral material and microbial bacteria micelle are attached to the last dynamic rete with activity, flexibility and characterization of adsorption that forms of microgrid dictyosome 6-1,6-2;
(2). filter and generate clear water
Under the aeration air pressure and hydraulic pressure acting in conjunction of continuation in step (1), mixed solution passes through dynamic membrane filtering, suspended matter and fine colloidal solid are blocked and are adsorbed on described microgrid dictyosome 6-1,6-2 water entering surface, and the clear water after the purification flows out from water outlet 31,32 through receiving mill weir 1-1,1-2 respectively;
(3). online gas, water clean and the renewal Dynamic Membrane
Through filtration after a while, Dynamic Membrane is active to be reduced, rete thickens, the filtered liquid flux descends, open the switch of described electric control box 33, the rising pipe water regulating valve 53 of high-pressure hydraulic pump 15 and the air volume regulating valve 52 of inlet pipe 16, under the control of electric control box 33, motor 18 is by step-down gear 21, transmitting gear 17 drives wheel shaft 19 and rotates, make travel mechanism 30 drive back flushing water pipe 2-1,2-2 and jet flush pipe 7-1,7-2 is at sheath body 25 end walls 25-1, speed with 0.1～10m/h between 25-2 is moved continuously, and in the process of walking by described two vernier switch 9-1,9-2 and corresponding described sheath body end wall 25-1, the 25-2 collision realizes the operation of travel mechanism reciprocating reversing, meanwhile, under electric control box control, realize the back flushing water pipe of travel mechanism both sides synchronously with walking mechanism 30 reciprocating reversings, the alternation of jet flush pipe; Backwashing water, under the slowly continuously synergy of gaseous blast, make the Dynamic Membrane metabolism, come off, grow to interlock and realize online updating; Go round and begin again and repeat above-mentioned Dynamic Membrane cleaning, renewal process, stop until filter operation.
Concrete working process and principle are as follows: when bringing into operation, it is that end wall 25-1 among Fig. 2 is that end wall 25-2 moves to another end wall of sheath body by sheath body 25 1 end walls that travel mechanism 30 drives back flushing water pipe 2-1,2-2 and jet flush pipe 7-1,7-2, according to the growth metabolism time of Dynamic Membrane, the travelling speed of travel mechanism 30 is 0.1～10m/h; Make back flushing water pipe 2-1 and the jet flush pipe 7-1 work of the microgrid dictyosome 6-1 of a side; During work, on the one hand the clear water of clear water zone is pressed into the back flushing water pipe and goes out water surface flushing microgrid by fluid jetting head 20 microgrid that reclines by high-pressure hydraulic pump 15, hydraulic pipe 3-1; On the other hand, gas is pressed into jet flush pipe 7-1 and jet to the segmentation sealing solarium of microgrid dictyosome 6-1 bottom by production well 70 by pneumatic tube 16-2, make haydite ball 64 random jump under the rising thrust wherein, the water entering surface of shearing, friction microgrid, under gas, water synchronization, make the microgrid Dynamic Membrane and adhere to dirt to come off; Environment mineral material can in time be filled up the microgrid space, suppress suspended matter and fine colloidal solid and pass microgrid, slowly wash away Dynamic Membrane owing to be positioned at the back flushing water pipe and the jet flush pipe of same perpendicular continuously with linear areas, make the Dynamic Membrane metabolism, come off, grow to interlock and carry out, realize online updating.When travel mechanism 30 walks to the end wall 25-2 of sheath body, vernier switch 9-2 and end wall 25-2 collision and action, motor 18 is antiport under the control of electric control box, travel mechanism 30 is returned operation, meanwhile, open and close conversion between interlock motorized valve 5-1, the 5-2 of two pneumatic tubes and between two hydraulic pipes interlock motorized valve 5-3, the 5-4, make back flushing water pipe 2-2 and the jet flush pipe 7-2 work of opposite side microgrid dictyosome 6-2, process is the same; When travel mechanism 30 turns back to initial sheath body end wall 25-1, vernier switch 9-1 and end wall 25-1 collision and action, under the control of electric control box, motor 18 is antiport again, makes back flushing water pipe 2-1 and the jet flush pipe 7-1 work of a side microgrid dictyosome 6-1 of initial launch again; So go round and begin again and repeat that above-mentioned Dynamic Membrane is cleaned, renewal process stops until filter operation.
Below for being effect of the present invention:
In aeration tank (or oxidation ditch) HRT=4.5h, MILLSS=9000mg/L, gas-water ratio=10; Membrane module backwashing period=90min, membrane module immersion depth=0.8m, microgrid area=45m
2Condition under,
Water inlet index (former horizontal average): COD=410mg/L, BOD=170mg/L, SS=230mg/L, ammonia nitrogen=30mg/L, total nitrogen=87mg/L, total phosphorus=3.5mg/L;
Effluent index (permeate water mean value): COD=41mg/L, BOD=9mg/L, ammonia nitrogen=3.9mg/L, total nitrogen=11mg/L, total phosphorus=1mg/L, SS do not detect, turbidity=3NTU, total flora number≤200/L.
Above-mentioned effluent index is better than or equals traditional MBR membrane module, and wherein COD, ammonia nitrogen, total nitrogen index are better than traditional MBR membrane module.Operation is 120 days continuously, do not find aquifer yield decline situation, and adopt traditional MBR membrane module under gas-water ratio=20 conditions that aquifer yield descends 7%, micro-net component operation energy consumption of the present invention only is equivalent to 65% of conventional film assembly, and the cost of micro-net component only is equivalent to 30% of conventional film assembly.
In a word, each sport technique segment of the present invention all embodies the assurance effluent characteristics, the principle of save energy and raising operational efficiency, it is low effectively to solve conventional film assembly aquifer yield, the cost height, work-ing life is low, occur easily because of concentration polarization, pollute, the aging flux that causes descends and stops up, and the control process complexity of operation, maintenance need be than the defective of high-technology condition, and it is stable inadequately to have overcome the existing micro-net component effluent quality of Dynamic Membrane that utilizes, membrane area is difficult to amplify, water rate is lower, the energy consumption height, still can not reach the defective of large-scale application level, further satisfy dirty, the technology of waste water reclaiming large-scale application, economic requirement makes this outstanding combination technique of micro-net component of utilizing Dynamic Membrane can access more widely and uses.
Claims (6)
1. a V-shaped groove formula cubes micro-net component that upgrades Dynamic Membrane continuously comprises the microgrid dictyosome that supports Dynamic Membrane, it is characterized in that also being provided with square frame shape valve jacket, T section guide rail, back flushing water pipe, and jet flush pipe is received mill weir, travel mechanism; Described microgrid dictyosome is to be the microgrid stack of the different apertures of 300～500 purposes and to be configured as the cubes microgrid dictyosome that is connected to form side by side by the multiple row V-shaped groove according to skeletal fixation by the multilayer aperture, and the aperture that is tightly connected, its bottom is 50～100 purpose spacer screens; The some vertical bar shaped sealing solarium that forms between the V-shaped groove of microgrid dictyosome and the spacer screen is separated into plurality of segments sealing solarium by a plurality of horizontal separation orifice plate that is provided with on the skeleton, places 2～3 layers of energy dancing haydite ball under the thrust that makes progress on the spacer screen of each segmentation sealing solarium correspondence; Described T section guide rail is parallel to the valve jacket sidewall and is arranged at valve jacket central authorities, two microgrid dictyosomes are parallel to the valve jacket sidewall with V-shaped groove and are symmetricly set in T section guide rail both sides, the fixedly connected valve jacket of difference, inboard fixedly connected T section guide rail respectively outside two microgrid dictyosomes; Place the top of the microgrid dictyosome of mixed solution to open, be clear water zone, clear water is discharged by the receipts mill weir that is arranged on sheath body top; The spacer screen bottom is the mixed solution water entering surface; Be higher than that the T section guide rail top of receiving mill weir is provided with configuration water source and source of the gas and along the T section guide rail reciprocal travel mechanism of operation continuously, described back flushing water pipe is arranged on microgrid dictyosome top across the microgrid dictyosome, connects the fluid jetting head of a plurality of and the corresponding setting of each V-shaped groove below the back flushing water pipe; Described jet flush pipe is crossed water pipe across microgrid dictyosome and back flushing and is positioned at same plane and is arranged on microgrid dictyosome below, and corresponding described spacer screen is provided with some production wells above the jet flush pipe; Described travel mechanism by two hydraulic pipes that connect the water source be tightly connected respectively the back flushing water pipe of being located at its both sides, be tightly connected respectively by two pneumatic tubes that connect source of the gas and be located at the jet flush pipe of its both sides; Be provided with respectively on hydraulic pipe that described two microgrid dictyosomes connect separately and the pneumatic tube and be used to make hydraulic pipe, the pneumatic tube while open and close of microgrid dictyosome separately, and when described travel mechanism is finished unidirectional stroke and is commutated, between two hydraulic pipes and open and close the interlock motorized valve of conversion between two pneumatic tubes.
2. the V-shaped groove formula cubes micro-net component of continuous renewal Dynamic Membrane according to claim 1 is characterized in that its vertical portion of described T section guide rail is divided into passage, and the horizontal top of passage both sides is the walking guide rail; Described travel mechanism comprises the movable stand that is arranged at described walking guide rail top, be installed on the motor on the movable stand, step-down gear, transmitting gear, wheel shaft, vernier switch reaches the electric control box of controlling described interlock motorized valve switching and described motor traffic direction by vernier switch, vernier switch is separately positioned on movable stand and the corresponding both sides of described sheath body end wall, motor via reducer connects transmitting gear, transmitting gear is fixedlyed connected with wheel shaft, by the rolling of set in two rollers of the wheel shaft of walking on the guide rail, travel mechanism moves; Described source of the gas is taken from the aerator inlet pipe or is set up pneumatic pump, and described two pneumatic tubes that are fixed on the movable stand are connected to two jet flush pipes respectively by the vertical passage partly of described T section guide rail; Described water source is a clear water zone, the high-pressure hydraulic pump that is fixed on the movable stand connects clear water zone by pump water inlet, connect two hydraulic pipes respectively by pumping line, described pumping line is provided with water regulating valve, and the inlet pipe that connects two pneumatic tubes is provided with air volume regulating valve.
3. the V-shaped groove formula cubes micro-net component of continuous renewal Dynamic Membrane according to claim 1 and 2, it is characterized in that described a plurality of fluid jetting head shape and V-shaped groove shape are identical, and insert respectively in each V-shaped groove, its both sides that recline the V-shaped groove groove face have posticum.
4. the V-shaped groove formula cubes micro-net component of continuous renewal Dynamic Membrane according to claim 1 and 2 is characterized in that described haydite ball is that diameter is the circular haydite ball of 4～10mm.
5. the V-shaped groove formula cubes micro-net component of an employing continuous renewal Dynamic Membrane as claimed in claim 2 carries out the method for dirt, waste water filtering, it is characterized in that may further comprise the steps:
(1). contain the formation of environment mineral material and the zoogleic Dynamic Membrane of microorganism
At first contain existing that to add 5 ‰～1% particle diameter in the zoogleic treatment sewage mixed solution of microorganism by weight percentage be 100 orders～one or more environment mineral materials of 400 purposes, then described micro-net component is placed horizontally in the water of bio-reactor aerobic zone or aeration biochemical pond upper end, adjust suitable immersion depth, under aeration air pressure and hydraulic pressure acting in conjunction, mixed solution is entered by the bottom of micro-net component continuously, run through micro-net component, flow out from top, with the circulation of liquid stream, environment mineral material and microbial bacteria micelle have activity attached to forming on the microgrid dictyosome, the dynamic rete of flexibility and characterization of adsorption;
(2). filter and generate clear water
Under the aeration air pressure and hydraulic pressure acting in conjunction of continuation in step (1), mixed solution is by dynamic membrane filtering, and suspended matter and fine colloidal solid are blocked and are adsorbed on described microgrid dictyosome water entering surface, and the clear water after the purification flows out from water outlet through receiving mill weir;
(3). online gas, water clean and the renewal Dynamic Membrane
Through filtration after a while, Dynamic Membrane is active to be reduced, rete thickens, the filtered liquid flux descends, open described electric control box switch, the air volume regulating valve of high-pressure hydraulic pump rising pipe water regulating valve and inlet pipe, under the control of electric control box, motor via reducer, transmitting gear drives wheel shaft and rotates, travel mechanism drive back flushing water pipe and jet flush pipe speed with 0.1～10m/h between the sheath body end walls are moved continuously, and in the process of walking by described two vernier switches and corresponding described sheath body end wall collision realization travel mechanism reciprocating reversing operation, meanwhile, under electric control box control, realize the back flushing water pipe of travel mechanism both sides synchronously with walking mechanism reciprocating reversing, the alternation of jet flush pipe; Backwashing water, on gaseous blast slowly continuously synergy under, make the Dynamic Membrane metabolism, come off, grow to interlock and realize online updating; Go round and begin again and repeat above-mentioned Dynamic Membrane cleaning, renewal process, stop until filter operation.
6. the V-shaped groove formula cubes micro-net component that Dynamic Membrane is upgraded in employing according to claim 5 continuously carries out the method for dirt, waste water filtering, it is characterized in that described environment mineral material is diatomite, zeolite, sepiolite, Attapulgite, vermiculite and activity charcoal powder.
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| CN102412005B (en) * | 2011-10-08 | 2013-07-03 | 天津大学 | Adsorption processing device of slurry circulation radioactive wastewater |
| CN102491530B (en) * | 2011-11-29 | 2013-04-10 | 居文钟 | Continuous damping real-time on-line linear backwashing high-flux disc-type micro-screen assembly |
| CN102923849B (en) * | 2012-10-25 | 2013-09-25 | 居文钟 | Rotating disc type micro-grid assembly for backwash-free dynamic membrane |
| CN103351057B (en) * | 2013-07-30 | 2014-08-06 | 居文钟 | Full-brush type non-backwashing single-net and double-net dynamic membrane micro net assemblies |
| CN108249560B (en) * | 2018-02-10 | 2020-11-24 | 西安建筑科技大学 | Membrane bioreactor and membrane pollution control device and method for membrane bioreactor |
| CN114163044B (en) * | 2021-12-02 | 2023-06-27 | 苏州东大仁智能科技有限公司 | Oily wastewater treatment device applying membrane technology |
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| CN1807275A (en) * | 2005-12-30 | 2006-07-26 | 于容朴 | Dynamic micro filter membrane assembly and water treatment process method |
| CN101323484A (en) * | 2008-07-25 | 2008-12-17 | 山东大学 | Nesting type multidimensional membrane assembly dynamic membrane bioreactor |
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