CN102603124A - Two-phase two-period anaerobic organism reactor for processing wastewater - Google Patents
Two-phase two-period anaerobic organism reactor for processing wastewater Download PDFInfo
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- CN102603124A CN102603124A CN2012100929288A CN201210092928A CN102603124A CN 102603124 A CN102603124 A CN 102603124A CN 2012100929288 A CN2012100929288 A CN 2012100929288A CN 201210092928 A CN201210092928 A CN 201210092928A CN 102603124 A CN102603124 A CN 102603124A
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- 238000012545 processing Methods 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 180
- 238000006243 chemical reaction Methods 0.000 claims abstract description 67
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 108
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- 229910052760 oxygen Inorganic materials 0.000 abstract 1
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a two-phase tow-period anaerobic organism reactor processing wastewater. The reactor comprises a reactor body, a circulation tank, an alkali adding device, a biological phase separator, a primary three-phase separator and a secondary three-phase separator, wherein the circulation water tank and the alkali adding device are arranged on the outer side of the reactor body, and the biological phase separator, the primary three-phase separator and the secondary three-phase separator are arranged in the reactor body from bottom to top, a closed acidification reaction chamber is arranged at the lower part of the reactor body, and the biological phase separator is arranged at the top in the acidification reaction chamber; a methane-generating main reaction area is formed between the upper part of the acidification reaction chamber and the primary three-phase separator, and a methane-generating fine processing area is formed between the primary three-phase separator and the secondary three-phase separator. The anaerobic organism reactor provided by the invention has the advantages that the structure is compact, the occupying area is small, the organic load reaches to 40kg COD (chemical oxygen demand)/(m<3>.d) when the reactor is used for processing high-concentration wastewater generated by pulping and paper making or similar wastewater, and the stability and the flexibility are extremely high when the reactor is used for processing wastewater with variable water quantity and water quality.
Description
Technical field
The present invention relates to a kind of anaerobic reactor, particularly relate to a kind of two phases, two stage anaerobic biological reactors of handling waste water.
Background technology
Anaerobic Microbiological Treatment Technology is one of important technology in the treatment of Organic Wastewater.And anaerobic reactor is the core of Anaerobic Microbiological Treatment Technology.Traditional anaerobic reactor comprises UASB, anaerobism filter bed, anaerobic fluidized bed etc.Shortcomings such as at present, these anaerobic reactors are widely used in wastewater treatment industry, but that normal appearance can be born organic loading is low, can not bear bigger impact load, and operation stability is relatively poor, and filter bed is prone to stifled, and mud is prone to run off, and reactor volume is big, and is difficult in maintenance.The IC anaerobic reactor of development in recent years, EGSB anaerobic reactor; On UASB, obtain some breakthroughs and solved some problems; Comprise: (1) is strengthened the muddy water mass transfer through internal recycle or outer circulation and higher waterpower upflow velocity and has been improved the maximum organic loading of reactor drum, and has reduced floor space.(2) improvement through triphase separator has improved the waterpower flow velocity, thereby has reduced the processing efficiency that hydraulic detention time has improved reactor drum.But; Still there are some problems in this type modified version anaerobic reactor; Comprise: granule sludge was prone to fouling when waste water such as containing suspended substance, calcium, magnesium was handled in (1), caused reactor plugs and processing efficiency sharply to descend, and added active sludge again after need shutting down cleaning in the time of seriously.Form the internal recycle difficulty when (2) starting, start time is long, and is prone to assemble a large amount of mud scums under the pneumatic trough, stops up pneumatic trough, is difficult to keep stable efficient lifting.(3) when processing contains the organic waste water of Toxic matter, methanogen floras directly contacts toxic substance in traditional single-phase anaerobic reactor, and its multiplication rate usually is lower than decline speed, causes the anaerobic treatment process can not keep secular efficient.(4) triphase separator can not realize effectively that under high flow velocities three phase separation, anaerobic reactor are prone to mud and seriously run off at present.
Summary of the invention
The objective of the invention is to the deficiency to prior art, a kind of suitable anaerobe flora growth is provided, improve the activity of mud in the reactor drum, strengthened two two stage anaerobic biological reactors mutually of the wastewater treatment of the mass transfer between mud and waste water.
The object of the invention is realized through following technical scheme:
A kind of two phases, two stage anaerobic biological reactors of handling waste water is characterized in that said reactor drum comprises reactor body, circulation water pot and adder-subtractor; Said reactor body is the hollow cylinder body structure; The reactor body bottom is provided with water distributor; The top is provided with gas-liquid separator, is provided with biota separator, one-level triphase separator, secondary triphase separator in the reactor body from top to bottom successively, and the acidification reaction chamber that the bottom of said reactor body is provided with sealing (preferably; The aspect ratio of acidification reaction chamber be 1: 1 or less than 1: 1), said biota separator is located at the indoor top of acidification reaction; Form between top, acidification reaction chamber to the one-level triphase separator and produce the methane main reaction region, form between one-level triphase separator and the secondary triphase separator and produce methane precision processing district; Produce the methane district and form (aspect ratio that preferably, produces the methane district is more than or equal to 2) with product methane precision processing district by producing the methane main reaction region.Said biota separator top is provided with gas tube, and this gas tube is communicated with the pneumatic trough of one-level triphase separator, and biota separator and product methane main reaction region are by the thrust-augmenting nozzle unilaterally connected; Said pneumatic trough is communicated with gas-liquid separator through the internal recycle riser tube; The lower end of the inner circulating reflux pipe of said gas-liquid separator feeds the bottom of producing the methane main reaction region; The water outlet at reactor body top enters the circulation water pot through water shoot; The recirculated water pot bottom is communicated with water distributor through the outer circulation return line, and the recirculated water tank top is provided with rising pipe; Said adder-subtractor connects and adds the alkali pipe, and this adds the alkali pipe and feeds product methane main reaction region bottom; Said reactor body bottom is provided with shore pipe and bottom feed liquor arm.
The bottom of said reactor body is the funnel type conical shell; Two water distribution combs that said water distributor comprises the feed liquor main pipe, is communicated with the feed liquor main pipe; Said water distribution comb comprises vertical sidepiece feed liquor arm and is located at the water distributor of at least two levels on the sidepiece feed liquor arm different heights; Said two water distribution combs are located at the both sides of the funnel type conical shell of reactor body, and its water outlet stretches in this cylindrical shell, and the water outlet direction of two water distribution combs is same clockwise.Preferably; Said two water distribution combs and cylindrical shell axis are positioned at same perpendicular; And the water outlet of two water distribution combs is symmetrical with respect to the cylindrical shell axis; The water outlet end is provided with same conterclockwise elbow along the circumferential section tangent line, thereby makes that the water outlet direction of two water distribution combs is same clockwise.Said two water distribution combs also can be in same perpendicular, and the water outlet of two water distribution combs is in the opposite direction and divide the both sides be listed in the cylindrical shell axis.
Bottom feed liquor arm can continuously or be interrupted entering waste water when operation, can when needs replenish mud, advance mud as shore pipe as advancing the mud pipe.Waste water gets into water distribution zone by the water distributor level by two feed liquor arms respectively again through the feed liquor main pipe, forms eddy flow in the horizontal direction and stirs, and forms the plug-flow fluidised form on the vertical direction, utilizes waterpower to stir the thorough mixing of realizing muddy water, and effectively avoids short stream.But when reactor diameter was big, the eddy flow center was can stirring intensity not enough, and therefore also water inlet continuously of bottom feed liquor arm when normal operation mixes with the muddy water that promotes the eddy flow center.When the more waste water of long-term disposal calcic or inertia suspended matter, the mud easy scale formation causes active decline; When needing spoil disposal; Stop the bottom feed liquor and prop up water inlet tube, in conical shell, because of the density variation formation layering of fouling mud and nonreactant and active sludge; Fouling mud and nonreactant are sunken to the conical shell bottom greatly because of density, are discharged by shore pipe.When needs replenish mud, get into reactor drum through the bottom shore pipe, reach the effect that replenishes active sludge, thus the high efficiency continuous operation of realization response device.
The top of said acidification reaction chamber is the funnel type end-blocking; Said biota separator is located at the central authorities on top, acidification reaction chamber; This biota separator comprises urceolus and inner core, and said urceolus comprises the funnel type urceolus that the upper end of outer straight barrel, the male-tapered cylindrical shell that is connected with outer straight barrel bottom and outer straight barrel connects; Form spiral feed liquor district between said funnel type urceolus and the acidification reaction chamber upper funnel type end-blocking, said funnel type urceolus is provided with the fluid inlet tangent with the funnel type urceolus, and said feed liquor sense of rotation is identical with the clockwise of water distribution comb water outlet rotation; Said male-tapered cylindrical shell is communicated with outer straight barrel, and its bottom is open, and the male-tapered cylinder inboard wall is provided with spiral deflector, forms the external spiral passage, and its hand of spiral is identical with the sense of rotation that the top gets into liquid; Said inner core comprises expansion tube and interior straight barrel, and said expansion tube is located at place, axis in the urceolus, and is fixed in end-blocking place, top, acidification reaction chamber; The upper end closed of expansion tube also is provided with thrust-augmenting nozzle; Unidirectional conducting valve and the unidirectional conducting of product methane main reaction region that the expansion tube is provided with through thrust-augmenting nozzle, thrust-augmenting nozzle water outlet end is provided with along the elbow of circumferential section tangent line, and thrust-augmenting nozzle water outlet sense of rotation is identical with the clockwise of feed liquor rotation; Expansion tube upper diameter is little; Lower diameter is big, expands the tube lower ending opening and is connected to form linkage path with interior straight barrel top, and an expansion tube outer, lower end is provided with baffle plate; This baffle plate forms concentric pneumatic trough with interior straight barrel, and the pneumatic trough upper end is provided with the gas tube of the cavity UNICOM that forms with interior straight barrel and outer straight barrel; Interior straight barrel middle part is provided with filter pore, and interior straight barrel bottom is provided with another spiral deflector, forms the internal screw passage, and its hand of spiral is identical with the hand of spiral of external spiral passage.Muddy water mixed solution gets into the cavity between separator funnel type urceolus and funnel type inner core by the fluid inlet in face of the swirl direction opening; And flow velocity obtains the rotation acceleration; Be provided with the big expansion tube of the little lower diameter of upper diameter along the rotation of funnel type inner tank theca down to the bottom; Mud and suspended substance are assembled to the interior straight barrel outer wall of bottom greatly because of density; And water is assembled because of the little interior straight barrel outer wall to the bottom of density, and straight barrel rose to expansion tube top and got into the product methanic chamber by thrust-augmenting nozzle in gas-liquid got into via filter pore; Small portion gas is assembled the riser tube by gas tube entering product methane district because of density variation to the center, has effectively reduced gas and in reaction zone, has accumulated the problem that flora is produced inhibition.Muddy water is further separated by filter pore, and in the straight barrel, straight barrel continued outward to move downward in mud and suspended substance were in, and effectively realized mud-water separation in liquid got into.Simultaneously the high rate of flow of fluid in the filter pore outside is sheared cleaning to filter pore, and it is can retaining hole unobstructed therefore to need not back flushing.The hand of spiral of the helical channel of said biota separator is identical with the fluid sense of rotation, is back to reaction zone rapidly to promote separated sludge, avoids the isolating mud back-mixing that makes progress, thereby realizes efficiently with mud-water separation.
Said one-level triphase separator comprises parallel staggered two-layer at least gas skirt and pneumatic trough, mud receiving tank, baffle plate and mud return line; Said gas skirt is communicated with pneumatic trough; Said pneumatic trough is communicated with the internal recycle riser tube, is provided with the mud receiving tank under the gas skirt, and mud receiving tank end is connected with mud return line; Mud return line is communicated with the inner circulating reflux pipe, and the bottom, backflow slit between gas skirt is provided with baffle plate; An arm of the outer circulation return line of said recirculated water pot bottom is connected in the feed liquor main pipe of water distributor, and another root arm is connected on the inner circulating reflux pipe of one-level triphase separator below.
The lower ending opening of said pneumatic trough, opening part connect a long baffle plate and a short shutter respectively, leave the mud refluxing opening between long baffle plate and the short shutter, and the horizontal projection of long and short baffle plate can cover the lower port of pneumatic trough fully.
Said secondary triphase separator is fixed in the top of reactor body, comprises urceolus and inner core, and said urceolus comprises the funnel type urceolus that the upper end of outer straight barrel, the male-tapered cylindrical shell that is connected with outer straight barrel bottom and outer straight barrel connects; Said inner core is located at place, axis in the urceolus; Comprise expansion tube, funnel type inner core and interior straight barrel; Form spiral feed liquor district between said funnel type urceolus and the funnel type inner core; Said funnel type urceolus is provided with the fluid inlet tangent with the funnel type urceolus, and said feed liquor sense of rotation is identical with the clockwise of the thrust-augmenting nozzle water outlet rotation of producing bottom, methane district; Said male-tapered cylindrical shell is communicated with outer straight barrel, and its bottom is open, and the male-tapered cylinder inboard wall is provided with spiral deflector, forms the external spiral passage, and its hand of spiral is identical with the sense of rotation that the top gets into liquid; Said expansion tube upper diameter is little, and lower diameter is big, and upper and lower opening connects the lower end and the interior straight barrel upper end of funnel type inner core respectively; Interior straight barrel middle part is provided with filter pore, and interior straight barrel bottom is provided with spiral deflector, forms the internal screw passage, and its hand of spiral is identical with the hand of spiral of external spiral passage; Said funnel type inner core upper end extension is provided with the zig-zag overflow weir, forms annular catchment tray between this overflow weir and the reactor body cylindrical shell, and catchment tray is communicated with the circulation water pot through water shoot.
Said secondary triphase separator is fixed in the top of reactor body, also can be to comprise two-layer gas skirt and two-layer swash plate, and two-layer gas skirt is staggered up and down, and the cover top vertex of lower floor's gas skirt is below the center line of the seam of the backflow between the gas skirt of upper strata.Between two-layer gas skirt, be provided with the upper strata swash plate, below lower floor's gas skirt, be provided with lower floor's swash plate, the vergence direction of two-layer swash plate is opposite.When the mud that has bubble on the surface is rising in the gas skirt; Rising inertia and water are inhaled the negative pressure compound action and are formed turbulent flow; The promotion bubble separates with mud; Thereby the mud scum in the gas skirt effectively gets into the inner circulating reflux pipe by the mud receiving tank via mud return line fast and turns back to the bottom of producing methanic chamber; Reduce mud entering riser tube and result in blockage, gas and liquid mixture is by after carrying out gas-liquid separation in the one-level riser tube entering gas-liquid separator, and liquid is turned back to by the inner circulating reflux pipe and produces the methanic chamber bottom.
Anaerobic reactor operation scheme of the present invention is following: waste water by intake pump from the bottom of anaerobic reactor through the feed liquor main pipe respectively by two feed liquor arms; Get in the conical shell by the water distributor horizontal tangential again; The feed liquor arm upwards gets in the conical shell from bottom vertical part one through the bottom by the feed liquor main pipe in addition; The spiral up-flow gets into the acidification reaction chamber of anaerobic reactor then, and degraded back acidified substrate gets into the biota separator by feed liquor window tangential, and waste water and biogas are by rising to expansion tube top in the straight barrel in the filter pore entering of small-bore on the interior straight barrel after mud-water separation; Liquid is got into by thrust-augmenting nozzle and produces methanic chamber; Make COD further degraded, most of gas and liquid mixture is got into by the gas tube at expansion tube axis place, top and produces methane district riser tube, be promoted to gas-liquid separator after; Gaseous emission, liquid are turned back to by the inner circulating reflux pipe and produce the methanic chamber bottom.Isolating mud and suspended substance turn back to the acidification reaction chamber via the helical channel that the interior straight barrel of biota separator, male-tapered tube and external spiral flow deflector form, and suspended contaminant becomes acidified substrate by the acidication bacterium acidified degradation that is hydrolyzed once more.Produce the interior muddy water gas mixed solution of methanic chamber and rise to the one-level triphase separator; Muddy water gas mixed solution is realized separating of gas and mud under the water suction effect of gas skirt impact effect and mud receiving tank; Gas and liquid mixture is collected the back by gas skirt and is promoted to gas-liquid separator by riser tube; Biogas separate discharge or utilization, waste water are back to by return line and produce the methanic chamber bottom.The most of mud that produces methanic chamber returns decline; Waste water rises to a small amount of mud and produces the methanic chamber top; A part gets into gas-liquid separator through the two-stage hoisting pipe that produces the methanic chamber top; Mud mixture after the separation is back to by return line and produces the methanic chamber bottom; Remain most of muddy water mixed solution and equally isolating air-water mixture is risen to the settling region through the expansion tube as biota separator separates principle, by getting into water shoot after the rectification of zig-zag overflow weir, get into the circulation water pot again from circulation water pot middle part by feed liquor window tangential entering secondary triphase separator; A part by getting into the feed liquor main pipe through the outer circulation return line, gets into the acidification reaction chamber from the recirculated water pot bottom once more; Another part is discharged by circulation water pot top and is got into next processing unit.
The present invention has following advantage and effect with respect to prior art:
(1) will produce sour mud through installation biota separator in reactor body effectively separates with product methane mud; Avoid waste water toxic material directly to contact methanogen; And on biota separator top, produce methane main reaction region bottom and be provided with and add the alkali pipe; Add alkali to producing methanic chamber, be respectively acid-producing microorganisms that produces sour chamber and the mikrobe that produces in the methanic chamber and create suitable pH environment, improve the activity of various anaerobions.In addition; Triphase separator is provided with collection and confinement of gases such as hydrogen sulfide that biological device gas tube can produce the acid-producing chamber, hydrogen and directly enters the internal recycle riser tube, avoids the too high hydrogen dividing potential drop and the acetoxylation process and the methanation of intermediate products such as toxicant concentration obstruction VFA (VFA) and alcohols when increasing the internal recycle lifting force.
(2) improved funnel cyclone water distributor more is prone to realize good mass transfer effect.The different heights place of the funnel conical shell of water distributor is provided with water distributor; Because the rounded section of funnel conical shell lower section is little; Sludge quantity is few, along with the increase of height, the increase of sludge quantity; The horizontal swirl velocity of the mud of different heights has difference, and the generation of channel and short stream is effectively avoided in Sludge Bed interlayer generation relative displacement.Traditional water distributor is difficult in the major diameter reactor drum, realize water distribution uniformity simultaneously; Water distributor of the present invention utilizes lower floor's bed motion to drive upper strata bed motion; Reduce each cloth water spot uniformity of water distribution, cloth water spot number and water distribution and point out the requirement of water flow velocity; Reduce the hydraulic shear at cloth water spot place, be the formation and the good environment of creation of growing up of granule sludge.In addition, the Maelstrom that the water inlet of water distributor bottom can be stirred the eddy flow of major diameter reactor drum is suitably sheared, and promotes that Maelstrom is cracked into little whirlpool, enriches alternate motion, improves mass-transfer efficiency.In addition be provided with shore pipe, can carry out fouling inactivation mud flexibly and discharge and the replenishing of active sludge, improve the operational flexibility of reactor drum in the water distributor bottom.
(3) tangential direction mode in the biota separator and spiral mud return flow line are implemented under the higher muddy water mixed solution flow velocity mud-water separation efficiently.A plurality of tangential direction mouths make muddy water mixed solution get into high-speed rotational behind the biota separator on the biota separator; Therefore producing different centrifugal forces according to the different density of muddy water separates; And utilizing the filter pore on the interior straight barrel of biota separator further to separate, eddy flow liquid produces hydraulic shear to filter pore simultaneously, and filter pore is cleaned; Avoided the obstruction of filter pore, can be steady in a long-term carry out mud-water separation.The spiral mud return flow line of biota separator lower section is designed according to the eddy flow direction; Help the backflow of separated sludge; Effectively avoid simultaneously the reverse entering of liquid of spiral mud return flow line outlet, separated sludge is refluxed to impact and forms the secondary back-mixing.
(4) the present invention adopts improved inside and outside compound cycle structure; Water outlet all gets into the circulation water pot after the anaerobic treatment; A part is got into through water distributor by reactor bottom and produces sour chamber, and another part gets into the inner circulating reflux pipe by the outer circulation return line and finally is back to product methane main reaction region bottom.Circulation through different ratios is different nutritive substance and the basicity of two big reaction zones backflows, makes reactor drum have stronger capacity of resisting impact load.In addition, the water sludge interface place of the gas skirt in the inner circulation structure of the present invention is provided with the mud receiving tank, and the mud receiving tank all connects mud return line, and the mud return line the other end is connected on the inner circulating reflux pipe of gas skirt below.Utilize the forced refluence of outer circulation return line in the inner circulating reflux pipe, to form negative pressure; The mud of gas skirt below is collected entering inner circulating reflux pipe be back to product methane main reaction region bottom; Sloping baffle is set between gas skirt simultaneously; Reduce mud and get into the upper strata gas skirt, reduce as far as possible that mud gets into that the internal recycle riser tube results in blockage or internal recycle promotes resistance and increases thereby reach.Therefore inner circulation structure of the present invention has more imperial palace circularly enhancing power, and is difficult for stopping up, and makes circulation have better adaptivity and stability.
(5) secondary triphase separator of the present invention is that the terminal triphase separator adopts the structure like the biota separator, and difference is that the top of biota separator intramedullary expansion tube do not seal, and realizes good mud-water separation effect.Perhaps the secondary triphase separator adopts improved triphase separator structure; Comprise two-layer gas skirt and two-layer swash plate; Two-layer gas skirt is staggered up and down, and the cover top vertex of lower floor's gas skirt is provided with the upper strata swash plate between two-layer gas skirt below the center line of the seam of the backflow between the gas skirt of upper strata; Below lower floor's gas skirt, be provided with lower floor's swash plate, the vergence direction of two-layer swash plate is opposite.The muddy water gas mixture at first with layer swash plate collision, destroys its trailing vortex effect in uphill process, promote the separation of mud gas, makes most of mud because the separate and subside of open bubble returns reaction zone, and most of gas is collected separation by the first layer gas skirt.Few portion gas and mud continue to rise; Collide with the upper strata swash plate once more; And get into gas-liquid separator by the two-stage hoisting pipe and obtain separating because of the change of swash plate vergence direction makes mud collision back gas rise to second layer gas skirt along swash plate, mud obtains settlement separate.
(6) its structure design of anaerobic reactor of the present invention is compact; Have suitable aspect ratio and simple treatment scheme; Both saved floor occupying area; Need not back flushing again and realize two being separated efficiently, at the efficient clearance of pollutent steady in a long-term that embodied in service of the paper-making effluent of handling middle and high concentration, organic loading can reach 40kg COD/ (m
3D), be in operation and embodied high stability and handiness.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention 1 bio-reactor;
Fig. 2 a is a feed liquor water distribution zone I structural representation among Fig. 1;
Fig. 2 b is the vertical view of Fig. 2 a;
Fig. 2 c is a feed liquor water distribution zone I structural representation among the embodiment 2;
Fig. 3 is biota separator 2 structural representations among Fig. 1;
Fig. 4 a produces one-level triphase separator structural representation in the methanic chamber among Fig. 1;
Fig. 4 b produces one-level triphase separator plan structure synoptic diagram in the methanic chamber among Fig. 1;
Fig. 4 c produces one-level triphase separator left side TV structure synoptic diagram in the methanic chamber among Fig. 1;
Fig. 4 d produces the multi-form structural representation of one-level triphase separator in the methanic chamber among Fig. 1;
Fig. 5 a is the structural representation of secondary triphase separator and gas-liquid separator among Fig. 1;
Fig. 5 b is the multi-form structural representation of secondary triphase separator among Fig. 1.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further described, but embodiment of the present invention is not limit so.
As shown in Figure 1, a kind of two phases, two stage anaerobic biological reactors of handling waste water comprise reactor body 1, circulation water pot 7 and adder-subtractor 8; Said reactor body 1 is the hollow cylinder body structure; Reactor body 1 bottom is provided with water distributor 2; Reactor body 1 top is provided with gas-liquid separator 6, is provided with biota separator 3, one-level triphase separator 4, secondary triphase separator 5 in the reactor body 1 from top to bottom successively, and the bottom of said reactor body 1 is provided with the acidification reaction chamber 11 of sealing; The aspect ratio of acidification reaction chamber 11 is 1: 1, and said biota separator 3 is located in the acidification reaction chamber 11; Form between 11 tops, acidification reaction chamber to the one-level triphase separator 4 and produce methane main reaction region 12; Form between one-level triphase separator 4 and the secondary triphase separator 5 and produce methane precision processing district 13; Produce methane main reaction region 12 and produce methane precision processing district 13; General designation is produced the methane district, and the aspect ratio that produces the methane district is 3: 1.
The bottom of said reactor body 1 is the funnel type conical shell; Shown in Fig. 2 a and 2b; Two water distribution combs 202 that said water distributor 2 comprises feed liquor main pipe 201, is communicated with feed liquor main pipe 201; Connect water pump on the feed liquor main pipe 201, said water distribution comb 202 comprises vertical sidepiece feed liquor arm 203 and is located at the water distributor 204 of 4 levels on sidepiece feed liquor arm 203 different heights that said two water distribution combs 202 are located at the both sides of the funnel type conical shell of reactor body 1; And water outlet stretches in this cylindrical shell; All water distributors 204 and cylindrical shell axis are positioned at same perpendicular, and water distributor 204 water outlets on two water distribution combs 202 are positioned at the radius midpoint of place horizontal plane circumference, and the water outlet of two water distribution combs 202 is symmetrical with respect to the cylindrical shell axis; The water outlet of every water distributor 204 is provided with same conterclockwise elbow 205 along the circumferential section tangent line, makes that the water outlet of water distributor 204 is CW.
As shown in Figure 3; The top of said acidification reaction chamber 11 is the funnel type end-blocking; Said biota separator 3 is located at the central authorities on 11 tops, acidification reaction chamber; This biota separator 3 comprises urceolus 300 and inner core 310, and said urceolus 300 comprises that outer straight barrel 304, the male-tapered cylindrical shell 306 that is connected with outer straight barrel 304 bottoms reach the funnel type urceolus 303 of the upper end connection of outer straight barrel 304; Form spiral feed liquor district between said funnel type urceolus 303 and the acidification reaction chamber 11 upper funnel type end-blockings 111, the feed liquor sense of rotation that said funnel type urceolus 303 is provided with tangent 302,4 fluid inlets 302 of 4 fluid inlets of this urceolus is CW; Said male-tapered cylindrical shell 306 is communicated with outer straight barrel 304, and its bottom is open, and male-tapered cylindrical shell 306 inwalls are provided with external spiral flow deflector 308, form the external spiral passage, and its hand of spiral is identical with the sense of rotation that the top gets into liquid; Said inner core 310 comprises expansion tube 311 and interior straight barrel 305; Said expansion tube 311 is located at place, axis in the urceolus 300, and is fixed on the 11 upper funnel type end-blockings 111 of acidification reaction chamber, and the upper end closed of expansion tube 311 also is provided with thrust-augmenting nozzle 313; Unidirectional conducting valve and the 12 unidirectional conductings of product methane main reaction region that expansion tube 311 is provided with through thrust-augmenting nozzle 313; Thrust-augmenting nozzle 313 outlets are provided with elbow, and the sense of rotation of water outlet is that level is clockwise, and expansion tube 311 upper diameter are little; Lower diameter is big; Expand tube 311 lower ending openings and be connected to form linkage path with interior straight barrel 305 tops, an expansion tube outer, 311 lower end is provided with baffle plate 314, and this baffle plate 314 and interior straight barrel 305 form concentric pneumatic trough; This concentric pneumatic trough upper end is provided with the gas tube 315 of the cavity UNICOM that forms with interior straight barrel 305 and outer straight barrel 304, and this gas tube 315 is communicated with the pneumatic trough 402 of one-level triphase separator; Interior straight barrel 305 middle parts are provided with filter pore 316, and interior straight barrel 305 bottoms are provided with internal screw flow deflector 309, form the internal screw passage, and its hand of spiral is identical with the hand of spiral of external spiral passage.
Shown in Fig. 4 a, 4b, 4c; Said one-level three phase separation 4 devices comprise parallel staggered two-layer gas skirt 401, gas skirt extension baffle plate and pneumatic trough 402, mud receiving tank 403, baffle plate 404 and mud return line 405; The lower ending opening of said pneumatic trough 402; Opening part connects a long baffle plate 406 and a short shutter 407 respectively; Leave the mud refluxing opening between long baffle plate 406 and the short shutter 407, and the horizontal projection of long and short baffle plate 406,407 can cover the lower port of pneumatic trough 402 fully; Said gas skirt 401 is connected with pneumatic trough 402 square crossings, through communication port pneumatic trough 402 is communicated with gas skirt 401, and said pneumatic trough 402 is communicated with gas-liquid separator 6 through internal recycle riser tube 9; Be provided with mud receiving tank 403 under the inside muddy water aerosphere face of the gas skirt 401 of lower floor; The cross-sectional shape of mud receiving tank 403 is a rectangle; Mud receiving tank 403 ends are connected with mud return line 405; Mud return line 405 is communicated with the inner circulating reflux pipe 601 of gas-liquid separator 6, and the lower end of inner circulating reflux pipe 601 feeds the bottom of producing methane main reaction region 12; Be provided with length baffle plate 404,408 in the bottom, backflow slit between the two-layer gas skirt 401 up and down; The horizontal projection of long baffle plate 404 and short shutter 408 covers the seam of the backflow between the gas skirt fully; An arm of the outer circulation return line 701 of said circulation water pot 7 bottoms is communicated with inner circulating reflux pipe 601, and another arm of outer circulation return line 701 is communicated with the feed liquor main pipe 201 of water distributor 2.
Shown in Fig. 5 a; Said secondary triphase separator 5 is fixed in the top of reactor body 1; Comprise urceolus 500 and inner core 510, said urceolus 500 comprises that outer straight barrel 501, the male-tapered cylindrical shell 502 that is connected with outer straight barrel 501 bottoms reach the funnel type urceolus 503 of the upper end connection of outer straight barrel 501; Said inner core 510 is located at place, axis in the urceolus 500; Comprise expansion tube 511, funnel type inner core 512 and interior straight barrel 513; Form spiral feed liquor district between said funnel type urceolus 503 and the funnel type inner core 512; The feed liquor sense of rotation that said funnel type urceolus 503 is provided with tangent 504,4 fluid inlets 504 of 4 fluid inlets of this urceolus is CW; Said male-tapered cylindrical shell 502 is communicated with outer straight barrel 501, and its bottom is open, and male-tapered cylindrical shell 502 inwalls are provided with spiral deflector, form the external spiral passage, and its hand of spiral is identical with the sense of rotation that the top gets into liquid; Said expansion tube 511 upper diameter are little, and lower diameter is big, and upper and lower opening connects the lower end and interior straight barrel 513 upper ends of funnel type inner core 512 respectively; Interior straight barrel 513 middle parts are provided with filter pore 514, and interior straight barrel 513 bottoms are provided with spiral deflector, form the internal screw passage, and its hand of spiral is identical with the hand of spiral of external spiral passage; Said funnel type inner core 512 upper end extensions are provided with zig-zag overflow weir 520; Form annular catchment tray between this overflow weir 520 and the reactor body 1; Catchment tray is communicated with circulation water pot 7 through water shoot 703; The water outlet at reactor body 1 top directly enters circulation water pot 7, and circulation water pot 7 tops are provided with rising pipe 702.Said reactor body 1 top is provided with the two-stage hoisting pipe 10 that gas-liquid separator 6 is communicated with product methane precision processing district 13.
Said adder-subtractor 8 connects and adds alkali pipe 801, and this adds alkali pipe 801 and feeds product methane main reaction region 12 bottoms, creates different pH environment separately with producing the acid district, the activity of two kinds of active sludge of raising for producing the methane district.Said reactor body 1 bottom is provided with shore pipe 101 and bottom feed liquor arm 102.Bottom feed liquor arm 102 can continuously or be interrupted entering waste water, when needs replenish mud, can shore pipe 101 be advanced mud as advancing the mud pipe.
Waste water gets into water distribution zone by two water distribution comb 202 levels respectively through feed liquor main pipe 201, forms eddy flow in the horizontal direction and stirs, and forms the plug-flow fluidised form on the vertical direction, utilizes waterpower to stir the thorough mixing of realizing muddy water, and effectively avoids short stream.But when reactor diameter was big, the eddy flow center was can stirring intensity not enough, and therefore also water inlet continuously of bottom feed liquor arm 102 when normal operation mixes with the muddy water that promotes the eddy flow center.When the more waste water of long-term disposal calcic or inertia suspended matter, the mud easy scale formation causes active decline; When needing spoil disposal; Stop 102 water inlets of bottom feed liquor arm, because of the density variation of fouling mud and nonreactant and active sludge, mud forms layering in conical shell; Fouling mud and nonreactant are sunken to the conical shell bottom greatly because of density, are discharged by shore pipe 101.When needs replenish mud, get into reactor drum through bottom shore pipe 101, reach the effect that replenishes active sludge, thus the high efficiency continuous operation of realization response device.
Muddy water mixed solution is got between funnel type urceolus 303 and the acidification reaction chamber upper funnel type end-blocking 111 by the fluid inlet 302 in face of the biota separator 3 of swirl direction opening and forms spiral feed liquor district; And flow velocity obtains the rotation acceleration; Rotation downwards; Mud and suspended substance are assembled because of big outwards straight barrel 304 inwalls of density; And water is assembled because of little inwardly straight barrel 305 outer walls of density, and straight barrel 305 rose to expansion tube 311 tops and got into product methane district by thrust-augmenting nozzle 313 in gas-liquid got into via filter pore 316; Small portion gas is assembled by gas tube 315 process pneumatic troughs 402 entering internal recycle riser tubes 9 to the center because of density variation, has effectively reduced gas and in reaction zone, has accumulated the problem that flora is produced inhibition.Muddy water is further separated by the filter pore 316 of biota separator 3, in the straight barrel 305, continues to move downward outside the straight barrel 305 in mud and suspended substance are in liquid gets into, and effectively realizes mud-water separation.The bore dia of the filter pore 316 of said biota separator 2 successively decreases from the bottom to top, and to improve the mud-water separation effect, the high flow velocity in filter pore 316 outsides is sheared cleaning to filter pore 316 simultaneously, and it is can retaining hole unobstructed therefore to need not back flushing.The interior straight barrel 305 and male-tapered tube 306 inside of said biota separator 3 are provided with inside and outside spiral deflector 308,309 separately; Form inside and outside helical channel respectively; To promote that separated sludge is back in the conical shell rapidly; Avoid the isolating mud back-mixing that makes progress, thereby realize, hold back insoluble pollutent in the waste water simultaneously in acidification reaction chamber 11 efficiently with mud-water separation; Stop time enough to be degraded into soluble small organic molecule, get into product methane district and thoroughly degraded.This advantage makes reactor drum can purify the complicated waste water of the middle and high concentration that contains insoluble pollutent, for example paper-making effluent efficiently.Avoid producing methane mud and directly contact toxic substance.
When the mud that has bubble on the surface is rising in the gas skirt 401; Rising inertia and water are inhaled the negative pressure compound action and are formed turbulent flow; The promotion bubble separates with mud; Thereby the mud scum in the gas skirt 401 effectively gets into inner circulating reflux pipe 601 by mud receiving tank 403 through mud return line 405 fast and turns back to the bottom of producing methane main reaction region 12; Reduce mud entering internal recycle riser tube 9 and result in blockage, gas and liquid mixture is by after carrying out gas-liquid separation in internal recycle riser tube 9 (one-level riser tube) the entering gas-liquid separator 6, and liquid is turned back to by inner circulating reflux pipe 601 and produces methane main reaction region 12 bottoms.
Reactor drum operation scheme of the present invention is: waste water is got in the conical shell by two water distribution comb 202 horizontal tangentials respectively through feed liquor main pipe 201 by the bottom of intake pump from anaerobic reactor; Part upwards gets in the conical shell by the feed liquor arm 102 of reacting body 1 bottom from bottom vertical in addition; The spiral up-flow gets into the acidification reaction chamber 11 of anaerobic reactor then; Degraded back acidified substrate gets into biota separator 3 by fluid inlet 302 tangentials; Waste water and biogas are by rising to expansion tube 311 tops in the straight barrel 305 in filter pore 316 entering of small-bore on the interior straight barrel 305 after mud-water separation, and liquid is got into by thrust-augmenting nozzle 313 and produces the methane districts, makes COD further degraded; Most of gas and liquid mixture gets into internal recycle riser tube 9 by the gas tube 315 at expansion tube axis place, 311 top; After being promoted to gas-liquid separator 6, gaseous emission, liquid are turned back to by inner circulating reflux pipe 601 and produce methane main reaction region 12 bottoms.Isolating mud and suspended substance turn back to acidification reaction chamber 11 via the external spiral passage of biota separator 3, and suspended contaminant becomes acidified substrate by the acidication bacterium acidified degradation that is hydrolyzed once more.Produce methane main reaction region 12 interior muddy water gas mixed solutions and rise to one-level triphase separator 4; Muddy water gas mixed solution is realized separating of gas and mud under the water suction effect of gas skirt 401 impact effects and mud receiving tank 403; Gas and liquid mixture is collected the back by gas skirt 401 and is promoted to gas-liquid separator 6 by internal recycle riser tube 9; Biogas separate discharge or utilization, waste water are back to by inner circulating reflux pipe 601 and produce methane main reaction region 12 bottoms.The most of mud that produces the methane district returns decline; Waste water rises to a small amount of mud and produces top, methane district; A part gets into gas-liquid separator 6 through the two-stage hoisting pipe 10 that produces top, methane district; Mud mixture after the separation is back to by inner circulating reflux pipe 601 and produces methane main reaction region 12 bottoms, remains most of muddy water mixed solution and gets into secondary triphase separator 5 by the fluid inlet tangential, and separation principle is as the biota separator; Isolating air-water mixture is risen to the settling region through expansion tube 511; By getting into recirculated water jar 7 after 520 rectifications of zig-zag overflow weir, a part by getting into feed liquor main pipe 201 through outer circulation return line 701, gets into acidification reaction chamber 11 from circulation water pot 7 bottoms once more again; Another part is discharged by circulation water pot 7 tops and is got into next processing unit.Adder-subtractor 8 is uniformly distributed in alkali lye and produces methane main reaction region 12 bottoms in addition, suitably improves the pH environment that produces the methane district, creates suitable product methane environment for producing the methane district.
The difference of present embodiment and embodiment 1 is:
Shown in Fig. 2 c; Said two water distribution combs 202 are not in same perpendicular; Water distributor 204 water outlets on two water distribution combs 202 are in the opposite direction; And divide the both sides that are listed in the cylindrical shell axis, the radius midpoint of place horizontal plane circumference, thereby make that the water outlet direction of two water distribution combs 202 is same clockwise.
The difference of present embodiment and embodiment 1 is:
Shown in Fig. 4 c, the cross-sectional shape of said mud receiving tank 403 is trapezoidal, and backflow seam place only establishes a baffle plate between the gas skirt, and the baffle plate angle is a level.Be equipped with mud receiving tank 403 below said each gas skirt 401.
The difference of present embodiment and embodiment 1 is:
Shown in Fig. 5 b, described secondary triphase separator 5 comprises two-layer gas skirt 517 and two-layer up and down swash plate 515 and 516, and two-layer gas skirt 517 is staggered up and down, and the cover top vertex of lower floor's gas skirt is below the center line of the seam of the backflow between the gas skirt of upper strata.Between two-layer gas skirt, be provided with upper strata swash plate 515, below lower floor's gas skirt, be provided with lower floor's swash plate 516, the vergence direction of two-layer up and down swash plate 515,516 is opposite.Two-stage hoisting pipe 10 1 ends are connected in reactor body 1 top, and the other end is connected in the gas-liquid separator 6 at top.
Claims (10)
1. two phases, two stage anaerobic biological reactors of handling waste water is characterized in that said reactor drum comprises reactor body, circulation water pot and adder-subtractor; Said reactor body is the hollow cylinder body structure; The reactor body bottom is provided with water distributor; The top is provided with gas-liquid separator; Be provided with biota separator, one-level triphase separator, secondary triphase separator in the reactor body from top to bottom successively, the bottom of said reactor body is provided with the acidification reaction chamber of sealing, and said biota separator is located at the indoor top of acidification reaction; Form between top, acidification reaction chamber to the one-level triphase separator and produce the methane main reaction region, form between one-level triphase separator and the secondary triphase separator and produce methane precision processing district; Said biota separator top is provided with gas tube, and this gas tube is communicated with the pneumatic trough of one-level triphase separator, and biota separator and product methane main reaction region are by the thrust-augmenting nozzle unilaterally connected; Said pneumatic trough is communicated with gas-liquid separator through the internal recycle riser tube; The lower end of the inner circulating reflux pipe of said gas-liquid separator feeds the bottom of producing the methane main reaction region; The water outlet at reactor body top enters the circulation water pot through water shoot; The recirculated water pot bottom is communicated with water distributor through the outer circulation return line, and the recirculated water tank top is provided with rising pipe; Said adder-subtractor connects and adds the alkali pipe, and this adds the alkali pipe and feeds product methane main reaction region bottom; Said reactor body bottom is provided with shore pipe and bottom feed liquor arm.
2. bio-reactor according to claim 1; It is characterized in that; The bottom of said reactor body is the funnel type conical shell; Two water distribution combs that said water distributor comprises the feed liquor main pipe, is communicated with the feed liquor main pipe, said water distribution comb comprise vertical sidepiece feed liquor arm and are located at the water distributor of at least two levels on the sidepiece feed liquor arm different heights that said two water distribution combs are located at the both sides of the funnel type conical shell of reactor body; And its water outlet stretches in this cylindrical shell, and the water outlet direction of two water distribution combs is same clockwise.
3. bio-reactor according to claim 2 is characterized in that, said two water distribution combs are not in same perpendicular, and the water outlet of two water distribution combs is in the opposite direction and divide the both sides be listed in the cylindrical shell axis.
4. bio-reactor according to claim 2; It is characterized in that; Said two water distribution combs and cylindrical shell axis are positioned at same perpendicular; And the water outlet of two water distribution combs is symmetrical with respect to the cylindrical shell axis, and the water outlet end is provided with same conterclockwise elbow along the circumferential section tangent line.
5. bio-reactor according to claim 1 and 2; It is characterized in that; The top of said acidification reaction chamber is the funnel type end-blocking; Said biota separator is located at the central authorities of acidification reaction chamber, and this biota separator comprises urceolus and inner core, and said urceolus comprises the funnel type urceolus that the upper end of outer straight barrel, the male-tapered cylindrical shell that is connected with outer straight barrel bottom and outer straight barrel connects; Form spiral feed liquor district between said funnel type urceolus and the acidification reaction chamber upper funnel type end-blocking, said funnel type urceolus is provided with the fluid inlet tangent with the funnel type urceolus, and said feed liquor sense of rotation is identical with the clockwise of water distribution comb water outlet rotation; Said male-tapered cylindrical shell is communicated with outer straight barrel, and its bottom is open, and the male-tapered cylinder inboard wall is provided with spiral deflector, forms the external spiral passage, and its hand of spiral is identical with the sense of rotation that the top gets into liquid; Said inner core comprises expansion tube and interior straight barrel, and said expansion tube is located at place, axis in the urceolus, and is fixed in end-blocking place, top, acidification reaction chamber; The upper end closed of expansion tube also is provided with thrust-augmenting nozzle; Unidirectional conducting valve and the unidirectional conducting of product methane main reaction region that the expansion tube is provided with through thrust-augmenting nozzle, thrust-augmenting nozzle water outlet end is provided with along the elbow of circumferential section tangent line, and thrust-augmenting nozzle water outlet sense of rotation is identical with the clockwise of feed liquor rotation; Expansion tube upper diameter is little; Lower diameter is big, expands the tube lower ending opening and is connected to form linkage path with interior straight barrel top, and an expansion tube outer, lower end is provided with baffle plate; This baffle plate forms concentric pneumatic trough with interior straight barrel, and the pneumatic trough upper end is provided with the gas tube of the cavity UNICOM that forms with interior straight barrel and outer straight barrel; Interior straight barrel middle part is provided with filter pore, and interior straight barrel bottom is provided with spiral deflector, forms the internal screw passage, and its hand of spiral is identical with the hand of spiral of external spiral passage.
6. bio-reactor according to claim 5; It is characterized in that; Said one-level triphase separator comprises parallel staggered two-layer at least gas skirt and pneumatic trough, mud receiving tank, baffle plate and mud return line, and said gas skirt is communicated with pneumatic trough, and said pneumatic trough is communicated with the internal recycle riser tube; Be provided with the mud receiving tank under the gas skirt; Mud receiving tank end is connected with mud return line, and mud return line is communicated with the inner circulating reflux pipe, and the bottom, backflow slit between gas skirt is provided with baffle plate; An arm of the outer circulation return line of said recirculated water pot bottom is connected in the feed liquor main pipe of water distributor, and another root arm is connected on the inner circulating reflux pipe of one-level triphase separator below.
7. bio-reactor according to claim 6; It is characterized in that; The lower ending opening of said pneumatic trough; Opening part connects a long baffle plate and a short shutter respectively, leaves the mud refluxing opening between long baffle plate and the short shutter, and the horizontal projection of long and short baffle plate can cover the lower port of pneumatic trough fully.
8. bio-reactor according to claim 7; It is characterized in that; Said secondary triphase separator is fixed in the top of reactor body; Comprise urceolus and inner core, said urceolus comprises the funnel type urceolus that the upper end of outer straight barrel, the male-tapered cylindrical shell that is connected with outer straight barrel bottom and outer straight barrel connects; Said inner core is located at place, axis in the urceolus; Comprise expansion tube, funnel type inner core and interior straight barrel; Form spiral feed liquor district between said funnel type urceolus and the funnel type inner core; Said funnel type urceolus is provided with the fluid inlet tangent with the funnel type urceolus, and said feed liquor sense of rotation is identical with the clockwise of the thrust-augmenting nozzle water outlet rotation of producing bottom, methane district; Said male-tapered cylindrical shell is communicated with outer straight barrel, and its bottom is open, and the male-tapered cylinder inboard wall is provided with spiral deflector, forms the external spiral passage, and its hand of spiral is identical with the sense of rotation that the top gets into liquid; Said expansion tube upper diameter is little, and lower diameter is big, and upper and lower opening connects the lower end and the interior straight barrel upper end of funnel type inner core respectively; Interior straight barrel middle part is provided with filter pore, and interior straight barrel bottom is provided with spiral deflector, forms the internal screw passage, and its hand of spiral is identical with the hand of spiral of external spiral passage; Said funnel type inner core upper end extension is provided with the zig-zag overflow weir, forms annular catchment tray between this overflow weir and the reactor body cylindrical shell, and catchment tray is communicated with the circulation water pot through water shoot.
9. bio-reactor according to claim 7 is characterized in that said secondary triphase separator is fixed in the top of reactor body; Comprise two-layer gas skirt and two-layer swash plate; Two-layer gas skirt is staggered up and down, and the cover top vertex of lower floor's gas skirt is provided with the upper strata swash plate between two-layer gas skirt below the center line of the seam of the backflow between the gas skirt of upper strata; Below lower floor's gas skirt, be provided with lower floor's swash plate, the vergence direction of two-layer swash plate is opposite.
10. bio-reactor according to claim 8 is characterized in that, the aspect ratio of said acidification reaction chamber≤1: 1; Produce aspect ratio>=2 in methane district; Said reactor body top is provided with the two-stage hoisting pipe that gas-liquid separator is communicated with product methane precision processing district.
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| CN105110463A (en) * | 2015-08-25 | 2015-12-02 | 江苏三强环境工程有限公司 | Combined treatment method of high-concentration industrial wastewater |
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