CN103979670A - Tower type wastewater bio-treatment device - Google Patents
Tower type wastewater bio-treatment device Download PDFInfo
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- CN103979670A CN103979670A CN201310049813.5A CN201310049813A CN103979670A CN 103979670 A CN103979670 A CN 103979670A CN 201310049813 A CN201310049813 A CN 201310049813A CN 103979670 A CN103979670 A CN 103979670A
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Abstract
The invention relates to a tower type wastewater bio-treatment device and a wastewater bio-treatment method using the tower type wastewater bio-treatment device. The tower type wastewater bio-treatment device comprises a settling chamber and a pneumatic mixed liquor lifter for lifting up concentrated mixed liquor in the settling chamber by a gas. After the tower type wastewater bio-treatment device and the wastewater bio-treatment method are used, the interface position between the liquid supernatant and the concentrated mixed liquor in the settling chamber can be quickly and effectively controlled, and the floating of sludge in the settling chamber can be avoided or eliminated.
Description
Technical field
The present invention relates to a kind of tower biological sewage treatment device, particularly a kind ofly comprise settling chamber and use described in gas lift the tower waste disposal plant of the mixture of airstream and strength liquid lift technique of concentrated mixed solution in settling chamber.
Background technology
Conventionally in biological sewage treatment device, mixed solution after the aerobic treatment such as such as Air Exposure need to carry out mud-water separation and obtain supernatant liquor (or be called " water outlet ") and concentrated mixed solution (or be called " mud ") in settling chamber, and described concentrated mixed solution at least part of needs to reflux and return to solarization air cell's (or be called " sludge reflux ") and sewage charging (or be called " water inlet ") and mix.Sludge reflux utilizes sludge reflux pump (being generally impeller pump) to complete conventionally.But sludge reflux pump need to consume extra energy, and need often to safeguard.In addition, also need insulation processing with anticreep danger with electrically driven (operated) sludge reflux pump.Therefore, sludge reflux pump is arranged on specific position conventionally, has limited the handiness of processing set-up, and often needs a large amount of connecting pipelines, has increased facility investment, the reliability of the whole device reducing.These problems are particularly outstanding in taking up an area compared with little and highly larger tower biological sewage treatment device.
Chinese patent application CN102372379A discloses a kind of tower biological sewage treatment device, comprise flow lifting type sludge bed reactor, aerobic reactor above flow lifting type sludge bed reactor and at the separator on aerobic reactor top, described separator has gas-liquid separation cylinder and solid-liquid displacement zone, aeration gas from aerobic reactor enters gas-liquid separation cylinder together with aeration mixed solution, then the mixed solution separating enters solid-liquid displacement zone and is separated into supernatant liquor and concentrated mixed solution, concentrated mixed solution returns to aerobic reactor and mixes rear aeration formation aeration mixed solution with sewage charging.
But, in the time separating aeration gas with mixed solution or in the time separating mixed solution and form supernatant liquor and concentrated mixed solution, in prior art, tripping device and method are often difficult to obtain the separating effect of expectation.Particularly in volume and highly limited tower biological sewage treatment device,, when separating when insufficient, even may there is mud rising phenomenon in the especially difficulty that separates of water outlet and mud in settling chamber, make handling interrupt.
In addition, in biological sewage treatment, the energy consumption equipment that Aeration fan is normally main, but aeration gas is directly discharged in atmosphere conventionally completing after Air Exposure, therefore the energy in aeration gas being underutilized, the energy consumption of biological sewage treatment device is higher.
Therefore, still need new, less energy-consumption, high reliability and high efficiency tower biological sewage treatment device and method.
Summary of the invention
An object of the present invention is to provide a kind of tower biological sewage treatment device to solve technical problem of the prior art.For this reason, one aspect of the present invention provides a kind of tower biological sewage treatment device, comprises settling chamber and uses described in gas lift the mixture of airstream and strength liquid lift technique of concentrated mixed solution in settling chamber.
According to certain embodiments of the present invention, described settling chamber can be that any Air Exposure mixed solution that can make separates the device that forms supernatant liquor and concentrated mixed solution.Conventionally, settling chamber can be settling bath or settling tank, swash plate or inclined tube wherein can be set to strengthen separating effect.Concentrated mixed solution is formed at the bottom of settling bath or settling tank conventionally under precipitating action, wherein can be provided with mud-collecting slot to strengthen the effect of settling of concentrated mixed solution.In some cases, be provided with overflow groove on the top of settling chamber to discharge supernatant liquor as water outlet.
According to certain embodiments of the present invention, in described tower biological sewage treatment device, described the mixture of airstream and strength liquid lift technique is that the gas that can utilize of any appropriate promotes the equipment of mixed solution as power, the mixture of airstream and strength liquid lift technique, for example air-powered pump or the mixture of airstream and strength liquid riser tube that preferably allow gas to contact with mixed solution.In some cases, the mixture of airstream and strength liquid riser tube comprise substantially vertical for draw the extract pipe of described concentrated mixed solution and be communicated with described extract pipe fluid for described gas being imported to the airway of described extract pipe.
According to certain embodiments of the present invention, in described tower biological sewage treatment device, described extract pipe is useful on and draws the entrance of described concentrated mixed solution and for discharging the outlet of described gas and concentrated mixed solution, described airway is connected in middle part or the bottom of described extract pipe.When described gas enters extract Guan Zhonghou through airway, described gas mixes with the concentrated mixed solution entering from the entrance of extract pipe bottom, under the pressure and Float upward function of gas, gas and concentrated mixed solution form gas-liquid mixture and upwards flow in conduit, discharge from the outlet at extract pipe top, thereby utilize the air conveying concentrated mixed solution that promoted.In some cases, by utilizing the concentrated mixed solution in gas lift settling chamber to realize the sludge circulation in whole waste disposal plant.
In some embodiments, described airway can be communicated with suitable source of the gas fluid, and enters the gas flow of airway with control by flowrate control valve, thereby controls the flow that promotes concentrated mixed solution.In other embodiments, the upstream of described extract tube inlet arranges flowrate control valve to control the flow of the concentrated mixed solution that enters conduit.
In some cases, described gas can be from any available gas source, and such as described gas can come from air compressor, blower fan, storage tank gases such as air, oxygen, nitrogen, rare gas element.The pressure of preferred described gas is more than or equal to normal atmosphere.Preferred described gas is oxygen-containing gas.In some cases, at least part of described gas is from aeration gas.Aeration gas can be collected any position from the aerating apparatus such as solarization air cell.Preferably, aeration gas is the aeration gas of overflowing from mixed solution of collecting above aerating apparatus.Conventionally the oxygen in aeration gas can not all consume in Air Exposure, and therefore the aeration gas after Air Exposure is still containing aerobic.In some cases, extra sludge reflux pump also can be set to promote the concentrated mixed solution in settling chamber.In some cases, also can utilize described gas to drive extra sludge reflux pump.
According to certain embodiments of the present invention, in described tower biological sewage treatment device, the bottom of described settling chamber is provided with mud-collecting slot, and the entrance of described extract pipe stretches into described mud-collecting slot.
In some cases, one or more the mixture of airstream and strength liquid riser tubes can be set in described settling chamber.In some cases, the extract tube inlet of multiple the mixture of airstream and strength liquid riser tubes can stretch into one or more mud-collecting slots.Multiple the mixture of airstream and strength liquid riser tubes are set and can strengthen the air conveying effect of gas to concentrated mixed solution, improve the efficiency that promotes concentrated mixed solution, also can strengthen contacting between gas and concentrated mixed solution simultaneously.
According to certain embodiments of the present invention, also comprise the gas-liquid separation groove for separating of the concentrated mixed solution from described the mixture of airstream and strength liquid lifting gear and gas at described tower biological sewage treatment device.
According to certain embodiments of the present invention, in described tower biological sewage treatment device, described gas-liquid separation groove is communicated with the outlet fluid of described extract pipe.
According to certain embodiments of the present invention, also comprise solarization air cell at described tower biological sewage treatment device, described solarization air cell has the gas skirt for collecting aeration gas in solarization air cell, and at least part of described gas is the aeration gas from described gas skirt.According to certain embodiments of the present invention, solarization air cell can be any device that can carry out mixed solution Air Exposure, for example aeration tank or aerator tank.Aerator can be set with enhanced aeration processing in solarization air cell, described aerator can be such as spiral aerator, micro-hole aerator, board-like aerator, revolve mixed aerator, tube aerator, jetting type aerator etc.
In some cases, in solarization air cell at least partly, preferably all aeration gas is introduced described concentrated mixed-liquor return equipment after collecting.In some cases, gas-liquid separation device is set in solarization air cell so that aeration gas is separated with Air Exposure mixed solution.Described gas-liquid separation device can be anyly can realize the device that aeration gas separates with Air Exposure mixed solution.Air Exposure mixed solution after separation can be introduced settling chamber, and prevents that aeration gas from entering settling chamber.For example, described gas-liquid separation device can be one or more containers or one or more snippets pipe, its top is provided with the one or more openings that allow Air Exposure mixed solution to enter described container or pipe, and its bottom is provided with the pipeline being communicated with settling chamber's fluid to allow the Air Exposure mixed solution in described container or pipe to enter settling chamber.In some cases, the described opening of described container or pipe submerges in the mixed solution of solarization air cell to receive Air Exposure mixed solution and to prevent that aeration gas from entering settling chamber.
In some embodiments, gas extractor is set in solarization air cell to collect aeration gas.Described airway is communicated with gas extractor fluid.Described gas extractor can comprise the gas skirt that is arranged on aerating apparatus top.According to certain embodiments of the present invention, described gas skirt is communicated with described airway fluid.For example, be provided with airway at the top of gas skirt and enter the mixture of airstream and strength liquid lifting gear with the gas that allows gas skirt to collect by gas inlet.In some embodiments, on described airway, be provided with flowrate control valve to control the flow of the gas that enters described conduit, thereby control the flow of concentrated mixed solution.In some cases, gas skirt can also be provided with at least part of discharge of gas of blow-down pipe so that gas skirt is collected.Control valve can also be set on described blow-down pipe to control flow or the ratio of emission gases, and then the flow of controlling the gas that enters described conduit is to control the flow of concentrated mixed solution.
In some cases, gas skirt can be arranged on middle part or the top of solarization air cell.The part of gas skirt can upwards be extended the top wall that protrudes solarization air cell to form gas collection bag.The wall of gas skirt can be the wall that limits solarization air cell at least partly.In some cases, gas skirt can be the independently umbrella hood that is positioned at solarization air cell inside.In other cases, gas skirt is limited by the top of solarization air cell and the optional sidewall joining with top.
According to certain embodiments of the present invention, in described tower biological sewage treatment device, described solarization air cell also has the intercepting basin for collecting mixed solution in solarization air cell, described settling chamber is communicated with described intercepting basin fluid, and concentrated mixed solution at least part of described settling chamber is from the mixed solution of described intercepting basin.
According to certain embodiments of the present invention, described tower biological sewage treatment device also comprises the dividing plate being arranged between described solarization air cell and described settling chamber.Described dividing plate can be flat board or conical plate or back taper plate or flap or any other suitable sketch plate.The drift angle of conical plate or back taper plate can be extremely approximately 179 degree of approximately 60 degree, for example approximately 70 to approximately 150 degree, and approximately 80 to approximately 120 degree, approximately 85 to approximately 105 degree or approximately 90 are spent.Adopt less drift angle can increase the height of settling chamber, be conducive to mixed solution and separate formation supernatant liquor and concentrated mixed solution; And larger drift angle is conducive to layout and the installation of each equipment in solarization air cell and settling chamber.In some cases, described drift angle is approximately 60 degree, approximately 70 degree, approximately 80 degree, approximately 90 degree, approximately 100 degree, approximately 120 degree etc.
According to some embodiments of tower biological sewage treatment device of the present invention, described gas skirt is one or more gas skirts that one or more parts of described dividing plate project upwards formation.According to some embodiments of tower biological sewage treatment device of the present invention, described gas skirt is that the one or more parts by described dividing plate that are positioned at described separator edge project upwards the one or more gas skirts that form, or the ring groove being limited by described back taper separator edge part and described solarization air cell inwall.
According to some embodiments of tower biological sewage treatment device of the present invention, described intercepting basin is positioned at the middle part of described dividing plate.In some cases, the opening upwards of described intercepting basin and and the lower surface of described dividing plate between leave the gap that allows mixed solution to enter intercepting basin.Be furnished with like this and be beneficial to separating of aeration gas and mixed solution.
According to certain embodiments of the present invention, in described tower biological sewage treatment device, the top of described intercepting basin is limited by the described dividing plate of part, and this part of described dividing plate is provided with the through hole that allows mixed solution to be entered settling chamber by intercepting basin.In some cases, described through hole is through arranging to prevent that aeration gas from entering settling chamber by this through hole.For example, block described through hole in case aeration gas enters settling chamber by this through hole with described intercepting basin.
According to some embodiments of tower biological sewage treatment device of the present invention, the groove of bottom, the described settling chamber of outstanding formation downwards, the middle part of described dividing plate is as mud-collecting slot.Like this, in settling chamber, separating the concentrated mixed solution forming will concentrate to described groove under action of gravity.The entrance of preferred described extract pipe stretches into described groove.
According to some embodiments of tower biological sewage treatment device of the present invention, the bottom of described settling chamber is also provided with mixed solution sparger to will be evenly distributed on the bottom of described settling chamber from the mixed solution of described intercepting basin.According to some embodiments of tower biological sewage treatment device of the present invention, described mixed solution sparger is the ring pipe with the basic horizontal placement of multiple openings, or the ring groove of the shirt rim of the oblique downward-extension being connected with described gas-liquid separation groove outer wall and the restriction of described gas-liquid separation groove outer wall.Such mixed solution sparger can will be evenly distributed on from the mixed solution of intercepting basin in settling chamber and substantially not affect mixed solution and separate the process that forms supernatant liquor and concentrated mixed solution.
According to some embodiments of tower biological sewage treatment device of the present invention, described gas-liquid separation groove is limited by described extract pipe with the outer sleeve of described extract pipe essentially concentric.In some cases, the bottom of described gas-liquid separation groove and the lower flow of solarization air cell are communicated with to make concentrated mixed-liquor return in groove enter the bottom of solarization air cell.In other embodiments, described gas-liquid separation groove is independently groove or pipe, its top is communicated with the top fluid of described extract pipe to allow the concentrated mixed solution and the aeration gas that leave described extract pipe to enter, and its underpart is communicated with the lower flow of solarization air cell to make concentrated mixed-liquor return in groove enter the bottom of solarization air cell.
According to certain embodiments of the present invention, in described tower biological sewage treatment device, between described gas-liquid separation groove and described solarization air cell, be provided with the concentrated mixed-liquor return pipe that allows the concentrated mixed solution of described gas-liquid separation groove to enter described solarization air cell.
According to certain embodiments of the present invention, also comprise at described tower biological sewage treatment device the anaerobic reaction chamber being arranged on below described solarization air cell.
In the present invention, described anaerobic reaction chamber can be the device that any mixed solution that can make concentrated mixed solution and sewage charging mix rear formation stands anaerobic treatment.According to certain embodiments of the present invention, described anaerobic reaction chamber can be any device that can make sewage charging stand anaerobic treatment.In some cases, anaerobic treatment can realize by the mode that makes mixed solution sluggish flow in the situation that there is no aeration.Suitable anaerobic reaction chamber can be to allow mixed solution with mobile pond or grooves of mode such as flat flow, vertical-flow or radial-flows.For example, described anaerobic reaction chamber can be upflow anaerobic sludge blanket process (upflow anaerobic sludge blanket, UASB) reactor, comprise in the mixing zone of bottom, top for collecting the plenum zone of methane bubble and the anaerobic reaction district between mixing zone and plenum zone.
According to some embodiments of tower biological sewage treatment device of the present invention, the bottom of described settling chamber is also provided with the second concentrated mixed-liquor return pipe so that at least partly concentrated mixed solution in settling chamber is discharged to settling chamber and solarization air cell.In some cases, available pump forces to discharge the concentrated mixed solution in settling chamber.In some cases, the concentrated mixed solution of discharging is introduced in the anaerobic reaction chamber that is arranged on solarization air cell below, preferably the bottom of anaerobic reaction chamber.When interface location between supernatant liquor in settling chamber and concentrated mixed solution is higher or be about to or when form sludge bulking generation mud floating, to partly or entirely concentrate mixed solution discharge and can fast and effeciently reduce interface location, prevent or eliminate sludge bulking formation and mud floating.
According to some embodiments of tower biological sewage treatment device of the present invention, in described settling chamber, be also provided with sludge bulking shredder assembly.Described sludge bulking shredder assembly is the device that the sludge bulking in settling chamber can be broken into the mud granule that is easy to sedimentation of any appropriate.In some cases, described sludge bulking shredder assembly is the device that utilizes the broken sludge bulking of mechanical force, for example strength sludge bulking shredder assembly, and the aerator of for example any appropriate, or there is the gas distribution tube of upward opening.In some cases, described sludge bulking shredder assembly is connected in described settling chamber actively, can enter as required and leave described settling chamber.In the During Process of Long-term Operation of biological sewage treatment device, the a small amount of mud that enters settling chamber may suspend always and fail to be settled down to the bottom of settling chamber, these mud formation sludge bulking of may reuniting, under the anaerobic environment of settling chamber, may become gradually easy floating, thereby may discharge and destroy effluent quality with water outlet.According to some embodiments of tower biological sewage treatment device of the present invention, described strength sludge bulking shredder assembly can be arranged on the aerating apparatus of any suitable location in described settling chamber, is preferably arranged on the middle part of described settling chamber.These sludge bulkings are carried out to intermittent Air Exposure, can broken sludge bulking, improve its settling property, avoid its destruction to effluent quality.
According to certain embodiments of the present invention, also comprise power house and interchanger at described tower biological sewage treatment device, the heat that wherein said interchanger utilizes power house medium power equipment to discharge heats the mixed solution in described biological sewage treatment device.Described power house and interchanger are preferably arranged on described solarization air cell and/or described anaerobic reaction is indoor, and wherein said interchanger utilizes the heat that power house medium power equipment discharges to heat the mixed solution in anaerobic reaction chamber or solarization air cell or settling chamber.Described interchanger is the interchanger of any appropriate, for example, can be selected from coil heat exchanger, straight pipe heat exchanger or its combination.Described power-equipment can be any power-equipment for tower biological sewage treatment device, such as vacuum pump and the related control device etc. of blower fan, sewage fresh feed pump or vacuum water drawing device.The benefit arranging is like this at least to reduce noise, is convenient to arrange and install, and the place populous, narrow space such as is beneficial in community and disposes.
According to some embodiments of biological sewage treatment device of the present invention, described settling chamber and solarization air cell and/or anaerobic reaction chamber can be arranged in the same cylindrical shell that is tower layout.Described cylindrical shell can be circular cylinder body or Polygonal barrel (preferably four, five, six, seven, eight or more polygon cylindrical shell).
In this article, " downwards " refers to and gravity direction direction substantially in the same way, includes but not limited to the direction overlapping with gravity direction; " upwards " refer to and the opposite direction of gravity direction direction substantially in the same way, include but not limited to the direction overlapping with the opposite direction of gravity direction.
In this article, " substantially " or " substantially " refers to by the term of its modification and can in the proper range definite as benchmark of the central value taking this term, change, and for example this scope can be by central value ± 20%, preferably ± 10%, more preferably ± 5%, the determined scope such as more preferably ± 1%.
Another aspect of the present invention provides a kind of biological method for treating waste water, comprises the concentrated mixed solution using in gas lift settling chamber.According to biological method for treating waste water of the present invention, wherein at least part of described gas is from aeration gas.
According to biological method for treating waste water of the present invention, further comprising the steps of: to collect respectively mixed solution and aeration gas in solarization air cell, mixed solution is carried out in described settling chamber to precipitation process to obtain supernatant liquor and concentrated mixed solution, in the mixture of airstream and strength liquid lift technique, will concentrate mixed solution with aeration gas and promote.
According to biological method for treating waste water of the present invention, be also included in gas-liquid separation groove the aeration gas from the mixture of airstream and strength liquid lift technique is separated with concentrated mixed solution, and the concentrated mixed solution separating is at least partly sent into solarization air cell.
According to biological method for treating waste water of the present invention, also comprise: regularly or in the time being about to or formed sludge bulking in the supernatant liquor in settling chamber the supernatant liquor in settling chamber is carried out to Air Exposure.Carrying out opportunity of this Air Exposure and time length can determine arbitrarily according to the formational situation of sludge bulking or broken situation or mud floating situation, avoids mud floating as long as can avoid or eliminate sludge bulking.Conventionally in the time carrying out this Air Exposure, should stop sewage charging to avoid mud to enter water outlet.
According to biological method for treating waste water of the present invention, also comprise the concentrated mixed solution at least part of settling chamber is discharged and do not sent into solarization air cell, for example this concentrated mixed solution can be sent into anaerobic reaction chamber.Described concentrated mixed solution can be discharged before or after by gas lift.Partial concentration mixed solution in settling chamber being sent into the operation of anaerobic reaction chamber can intermittently or carry out continuously.Carrying out opportunity and the time length of this operation can determine arbitrarily according to the particular case of the interface location between supernatant liquor and concentrated mixed solution and/or mud floating, as long as the position that this interface control can expected.For example, in the time that this interface location is higher, the partial concentration mixed solution in settling chamber can be sent into anaerobic reaction chamber to reduce the position at this interface, guarantee effluent quality; And being about to or mud when floating occurred, can discharge concentrated mixed solution in settling chamber partly or entirely even supernatant liquor partly or entirely, preferably send into anaerobic reaction chamber, thereby reduce described interface and avoid or eliminate mud floating.
Be not subject to any theory constraint, think that the major cause that occurs mud floating in settling chamber is: because anoxic causes anaerobic digestion, produce methane and carbon dioxide, sludge absorption gas and floating.Therefore, regularly carry out Air Exposure with intermittent mode, can suppress anaerobic digestion, pulverize mud agglomerate, thereby improve the settling property of mud, effectively avoid the generation of mud floating.In addition, utilize aeration gas can realize larger concentrated mixed-liquor return amount by the mixture of airstream and strength liquid riser tube, reduced the residence time of mud in settling chamber, be conducive to anaerobic digestion and the corresponding sewage floating of avoiding anoxic to cause.
Tower biological sewage treatment device of the present invention is introduced respectively settling chamber after aeration gas in solarization air cell is separated with mixed solution, aeration gas only promotes the concentrated mixed solution of bottom, settling chamber by the mixture of airstream and strength liquid lift technique, substantially avoided aeration gas mixed solution in settling chamber to be separated to the disturbance of the process that forms supernatant liquor and concentrated mixed solution, the concentrated mixed solution that simultaneously utilizes aeration gas constantly to extract bottom, settling chamber out with large quantity of reflux is also conducive to reduce the position at the interface between supernatant liquor and the concentrated mixed solution in settling chamber, reduce the residence time of mud in settling chamber, be conducive to prevent or eliminate mud and float.
In addition, the concentrated mixed solution of being extracted out by the mixture of airstream and strength liquid riser tube directly returns to solarization air cell after by gas-liquid separation groove and no longer enters settling chamber, has therefore also avoided mixed solution to separate the interference of the process that forms supernatant liquor and concentrated mixed solution.
Moreover, be arranged on aeration tube in settling chamber can be to the supernatant liquor in settling chamber regular aeration, or being about to or having formed sludge bulking or mud when floating occurs to supernatant liquor aeration, increase the dissolved oxygen of sludge bulking surrounding environment, improve the settling property of mud, can suppress the formation of sludge bulking, broken established sludge bulking, thereby avoid mud to float and ensured the separating effect of settling chamber, can having been worked steadily in the long term in settling chamber.
In addition, by in the anaerobic reaction chamber of sending at least partly solarization air cell below of the concentrated mixed solution in settling chamber, can be by the interface control between the supernatant liquor in this settling chamber and concentrated mixed solution in the position of expecting to guarantee effluent quality, and can avoid in time or eliminate when needed mud floating.
Further, the present inventor is surprised to find that, in the time adopting the concentrated mixed solution of aeration gas lift, the denitrification effect of sewage disposal and/or the effect of removing COD have obtained beyond thought raising.Be not bound by any theory, can think after contact with oxygen-containing gas (preferably aeration gas) from the concentrated mixed solution of settling chamber and mix with sewage charging again, strengthened denitrification, realized thus the effect of better denitrogenation and removal COD.
Tower sludge organism treatment unit of the present invention utilizes aeration gas to realize sludge reflux, can not re-use sludge reflux pump, therefore energy consumption and facility investment have been reduced, make the layout of device and technique more flexible, and because the moving parts that has reduced device is connected with pipeline, improve the reliability of device.In addition, biological sewage treatment device compact construction of the present invention, has reduced volume and the floor space of whole device.
Tower biological sewage treatment device floor space of the present invention is little, stable and reliable operation, basic Maintenance free, is suitable for inserting in buildings or imbeds at least partly underground, or be arranged on movably on platform, and be particularly suitable for the needs that small-scale community sewage is processed on the spot.
Brief description of the drawings
Fig. 1 is the structural representation of an embodiment of the tower biological sewage treatment device of the present invention.
Embodiment
Below in conjunction with accompanying drawing, some embodiments of the present invention are further introduced, but be not intended to limit protection scope of the present invention.
Fig. 1 is according to the structural representation of tower biological sewage treatment device of the present invention embodiment, wherein said tower biological sewage treatment device comprises anaerobic reaction chamber (1), be arranged on the solarization air cell (25) of top, anaerobic reaction chamber (1), be arranged on the settling chamber (21) of solarization air cell top, and be arranged on the dividing plate (12) between solarization air cell (25) and settling chamber (21), in solarization air cell (25), be provided with gas skirt (11) for collecting aeration gas and for collecting the intercepting basin (9) of mixed solution, in settling chamber (21), be provided with the mixture of airstream and strength liquid riser tube (16) and gas-liquid separator tank (15).These unit are for example all arranged on, in single cylindrical tower (or polygon tower) (the high tower of 10-30 rice).
Sewage charging from water inlet pipe (6) enters anaerobic reaction chamber (1) after sewage feed valve (5) and pump (4).Sewage charging can form laminar flow upwards in anaerobic reaction chamber (1), make anaerobic reaction chamber (1) thus in mud flow and the balance of sedimentation in stably suspend and form mud bed, at this moment anaerobic reaction chamber (1) just becomes flow lifting type sludge bed reactor.Continue upwards mobile clear liquid through mud bed and enter solarization air cell (25) by the opening (2) on dividing plate (27) (preferably thering is the unidirectional device that passes through).Optionally, gas collector (for example US6, the gas skirt described in 063,273) (not shown) can be set in dividing plate (27) below with gases such as the methane collecting anaerobic reaction and produce.
Clear liquid from anaerobic reaction chamber (1) mixes with aerobic mixed solution in solarization air cell (25).Aeration gas enters solarization air cell (25) through inlet pipe (26) mixed solution is wherein carried out to Air Exposure.Aerator (not shown) also can be set in solarization air cell (25).After aeration, aeration gas accumulates in the annular gas skirt (11) on solarization air cell (25) top, and aeration mixed solution enters intercepting basin (9), thereby makes separating of aeration gas and aeration mixed solution.
Mixed solution via through holes in intercepting basin (9) or pipeline (10) enter the bottom of settling chamber (21), and separate the formation supernatant liquor on top and the concentrated mixed solution of bottom in settling chamber (21).Supernatant liquor is discharged as water outlet (17) from overflow groove (18).Concentrated mixed solution sinks to entering mud-collecting slot (24), and enters extract pipe (16) from the bottom entrance of extract pipe (16).Aeration gas in gas skirt (11) enters extract pipe (16) through airway (22), will in extract pipe (16), promote from the concentrated mixed solution of mud-collecting slot (24) by air conveying.Then the gas in extract pipe (16) flows out from the top exit of extract pipe (16) together with mixed solution, and enters in gas-liquid separation groove (15) and carry out gas-liquid separation, and the gas of separation is discharged, and the concentrated mixed solution of separation is stayed in gas-liquid separation groove (15).The concentrated mixed solution separating at least partly can return to through the first concentrated mixed-liquor return pipe (23) bottom of solarization air cell (25).
When needed, for example water sludge interface is too high while affecting effluent quality, the concentrated mixed solution in mud-collecting slot (24) can escape and enter anaerobic reaction chamber (1) through the second concentrated mixed-liquor return pipe (8), valve (7) and pump (4) at least partly.Can effectively control and regulate the height of water sludge interface in settling chamber (21) by valve (7), guarantee effluent quality.
When needed, also can enter through the gas distribution tube as sludge bulking shredder assembly (20 and 13) middle part or the top of settling chamber (21) from the aeration gas of inlet pipe (19 and 14), make wherein the not sludge bulking of free settling carry out fragmentation to improve its settleability by the stirring of aeration gas, prevent mud floating.Aeration gas from inlet pipe (19 and 14) can regularly or off and on enter settling chamber (21), can pass through during this period shut-off valve (5) with the charging of stop supplies sewage, prevents that mud from discharging with water outlet (17).After sludge bulking fragmentation completes, the aeration gas of inlet pipe (19 and 14) stops entering settling chamber (21), broken sludge bulking sinks to entering mud-collecting slot (24) gradually, then enter solarization air cell (25) through extract pipe (16), gas-liquid separation groove (15) and the first concentrated mixed-liquor return pipe (23), thereby the sludge bulking of having eliminated middle part, settling chamber (21) or top, has prevented mud floating.
Tower biological sewage treatment device of the present invention and method can fast and effeciently be controlled the interface location between supernatant liquor and concentrated mixed solution in settling chamber, prevent or eliminate the mud floating in settling chamber, thereby tower biological sewage treatment device can efficiently be moved steadily in the long term.
Below the mode of explanation has been described the present invention by way of example.But, should be appreciated that the present invention is not limited only to absolutely these embodiments.Those of ordinary skill can carry out various amendments or variation to the present invention, and these amendments and variation all belong to protection scope of the present invention.
Claims (22)
1. a tower biological sewage treatment device, comprises settling chamber and uses described in gas lift the mixture of airstream and strength liquid lift technique of concentrated mixed solution in settling chamber.
2. according to the tower biological sewage treatment device of claim 1, wherein said the mixture of airstream and strength liquid lift technique is the mixture of airstream and strength liquid riser tube, comprise substantially vertical for draw the extract pipe of described concentrated mixed solution and be communicated with described extract pipe fluid for described gas being imported to the airway of described extract pipe.
3. according to the tower biological sewage treatment device of claim 2, wherein said extract pipe is useful on and draws the entrance of described concentrated mixed solution and for discharging the outlet of described gas and concentrated mixed solution, described airway is connected in middle part or the bottom of described extract pipe.
4. according to the tower biological sewage treatment device of claim 3, the bottom of wherein said settling chamber is provided with mud-collecting slot, and the entrance of described extract pipe stretches into described mud-collecting slot.
5. according to the tower biological sewage treatment device of any one in claim 1-4, also comprise the gas-liquid separation groove for separating of the concentrated mixed solution from described the mixture of airstream and strength liquid lifting gear and gas.
6. according to the tower biological sewage treatment device of claim 5, described gas-liquid separation groove is communicated with the outlet fluid of described extract pipe.
7. according to the tower biological sewage treatment device of any one in claim 1-4, also comprise solarization air cell, described solarization air cell has the gas skirt for collecting aeration gas in solarization air cell, and at least part of described gas is the aeration gas from described gas skirt.
8. according to the tower biological sewage treatment device of claim 7, wherein said gas skirt is communicated with described airway fluid.
9. according to the tower biological sewage treatment device of claim 7, wherein said solarization air cell also has the intercepting basin for collecting mixed solution in solarization air cell, described settling chamber is communicated with described intercepting basin fluid, and concentrated mixed solution at least part of described settling chamber is from the mixed solution of described intercepting basin.
10. according to the tower biological sewage treatment device of claim 7, also comprise the dividing plate being arranged between described solarization air cell and described settling chamber.
11. according to the tower biological sewage treatment device of claim 10, and the top of described intercepting basin is limited by the described dividing plate of part, and this part of described dividing plate is provided with the through hole or the pipeline that are entered settling chamber for mixed solution by intercepting basin.
12. according to the tower biological sewage treatment device of claim 7, is provided with the first concentrated mixed-liquor return pipe for the concentrated mixed solution of described gas-liquid separation groove being sent into described solarization air cell between wherein said gas-liquid separation groove and described solarization air cell.
13. according to the tower biological sewage treatment device of claim 7, also comprise the anaerobic reaction chamber that is arranged on described solarization air cell below, and between described gas-liquid separation groove and described anaerobic reaction chamber, be provided with the second concentrated mixed-liquor return pipe for the concentrated mixed solution of described gas-liquid separation groove being sent into described anaerobic reaction chamber.
14. according to the tower biological sewage treatment device of any one in claim 1-4, also comprises power house and interchanger, and the heat that wherein said interchanger utilizes power house medium power equipment to discharge heats the mixed solution in described biological sewage treatment device.
15. according to the tower biological sewage treatment device of any one in claim 1-4, also comprises the sludge bulking shredder assembly being arranged in described settling chamber.
16. 1 kinds of biological method for treating waste water, comprise the concentrated mixed solution using in gas lift settling chamber.
17. according to the biological method for treating waste water of claim 16, and wherein at least part of described gas is from aeration gas.
18. according to the biological method for treating waste water of claim 17, also comprise mixed solution and the aeration gas collected respectively in solarization air cell, mixed solution is carried out in described settling chamber to precipitation process to obtain supernatant liquor and concentrated mixed solution, in the mixture of airstream and strength liquid lift technique, will concentrate mixed solution with aeration gas and promote.
19. according to the biological method for treating waste water of any one in claim 16-18, also be included in gas-liquid separation groove the aeration gas from the mixture of airstream and strength liquid lift technique is separated with concentrated mixed solution, and the concentrated mixed solution separating is at least partly sent into solarization air cell.
20. according to the biological method for treating waste water of any one in claim 16-18, also comprises: regularly or the supernatant liquor in settling chamber is carried out to Air Exposure when being about to or having occurred sludge bulking in settling chamber's supernatant liquor.
21. according to the biological method for treating waste water of any one in claim 16-18, also comprises the concentrated mixed solution at least part of settling chamber is sent into anaerobic reaction chamber.
22. according to the biological method for treating waste water of any one in claim 16-18, also comprises the step of the heat heating mixed solution that utilizes power-equipment release.
Priority Applications (25)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310049813.5A CN103979670B (en) | 2013-02-07 | 2013-02-07 | Tower biological sewage treatment device |
| TW102123982A TWI472488B (en) | 2012-07-06 | 2013-07-04 | Apparatus and method for biological sewage treatment |
| ARP130102395A AR092345A1 (en) | 2012-07-06 | 2013-07-05 | APPARATUS AND METHOD FOR THE BIOLOGICAL TREATMENT OF WASTEWATER |
| AP2014008142A AP2014008142A0 (en) | 2012-07-06 | 2013-07-05 | Apparatus and method for biological sewage treatment |
| PCT/CN2013/078850 WO2014005540A1 (en) | 2012-07-06 | 2013-07-05 | Apparatus and method for biological sewage treatment |
| BR112015000189A BR112015000189A2 (en) | 2012-07-06 | 2013-07-05 | apparatus and method for biological sewage treatment |
| US14/413,179 US9771286B2 (en) | 2012-07-06 | 2013-07-05 | Apparatus for biological sewage treatment |
| JP2015518826A JP5961756B2 (en) | 2012-07-06 | 2013-07-05 | Biological sewage treatment apparatus and method |
| PE2015000005A PE20150188A1 (en) | 2012-07-06 | 2013-07-05 | APPARATUS AND METHOD FOR THE BIOLOGICAL TREATMENT OF WASTEWATER |
| PL13812723T PL2870112T3 (en) | 2012-07-06 | 2013-07-05 | Apparatus and method for biological sewage treatment |
| EA201590029A EA028145B1 (en) | 2012-07-06 | 2013-07-05 | Apparatus and method for biological sewage treatment |
| KR1020157001177A KR101997192B1 (en) | 2012-07-06 | 2013-07-05 | Apparatus and method for biological sewage treatment |
| SG11201408737TA SG11201408737TA (en) | 2012-07-06 | 2013-07-05 | Apparatus and method for biological sewage treatment |
| EP13812723.8A EP2870112B1 (en) | 2012-07-06 | 2013-07-05 | Apparatus and method for biological sewage treatment |
| CA2876906A CA2876906C (en) | 2012-07-06 | 2013-07-05 | Apparatus and method for biological sewage treatment |
| PT138127238T PT2870112T (en) | 2012-07-06 | 2013-07-05 | Apparatus and method for biological sewage treatment |
| IN10907DEN2014 IN2014DN10907A (en) | 2012-07-06 | 2013-07-05 | |
| MX2015000022A MX350052B (en) | 2012-07-06 | 2013-07-05 | Apparatus and method for biological sewage treatment. |
| AU2013286401A AU2013286401B2 (en) | 2012-07-06 | 2013-07-05 | Apparatus and method for biological sewage treatment |
| NZ702990A NZ702990A (en) | 2012-07-06 | 2013-07-05 | Apparatus and method for biological sewage treatment |
| ES13812723.8T ES2626500T3 (en) | 2012-07-06 | 2013-07-05 | Apparatus and procedure for biological wastewater treatment |
| IL236145A IL236145A0 (en) | 2012-07-06 | 2014-12-09 | Apparatus and method for biological sewage treatment |
| PH12014502878A PH12014502878B1 (en) | 2012-07-06 | 2014-12-23 | Apparatus and method for biological sewage treatment |
| CL2014003524A CL2014003524A1 (en) | 2012-07-06 | 2014-12-24 | Apparatus and method for biological wastewater treatment |
| CO15008213A CO7180203A2 (en) | 2012-07-06 | 2015-01-16 | Apparatus and method for the biological treatment of wastewater |
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|---|---|---|---|
| CN201310049813.5A CN103979670B (en) | 2013-02-07 | 2013-02-07 | Tower biological sewage treatment device |
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| CN103979670A true CN103979670A (en) | 2014-08-13 |
| CN103979670B CN103979670B (en) | 2016-04-06 |
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Application publication date: 20140813 Assignee: Gongs Water Company Limited Assignor: Li Jinmin|Zhou Liankui|Li Dayong Contract record no.: 2017990000219 Denomination of invention: Tower type wastewater bio-treatment device Granted publication date: 20160406 License type: Exclusive License Record date: 20170608 |
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Effective date of registration: 20190422 Address after: 276036 Station of Bancheng Town, Lanshan District, Linyi City, Shandong Province Patentee after: Gongs Water Company Limited Address before: 2736 Jinluo Science Park, Bancheng Town, Lanshan District, Linyi City, Shandong Province Co-patentee before: Zhou Liankui Patentee before: Li Jinmin Co-patentee before: Li Dayong |