CN103269984A - Sewage treatment system in sewerage system - Google Patents
Sewage treatment system in sewerage system Download PDFInfo
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- CN103269984A CN103269984A CN2011800623581A CN201180062358A CN103269984A CN 103269984 A CN103269984 A CN 103269984A CN 2011800623581 A CN2011800623581 A CN 2011800623581A CN 201180062358 A CN201180062358 A CN 201180062358A CN 103269984 A CN103269984 A CN 103269984A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/232—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles
- B01F23/2323—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles by circulating the flow in guiding constructions or conduits
- B01F23/23231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles by circulating the flow in guiding constructions or conduits being at least partially immersed in the liquid, e.g. in a closed circuit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/234—Surface aerating
- B01F23/2341—Surface aerating by cascading, spraying or projecting a liquid into a gaseous atmosphere
- B01F23/23413—Surface aerating by cascading, spraying or projecting a liquid into a gaseous atmosphere using nozzles for projecting the liquid into the gas atmosphere
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
- B01F25/3124—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characterised by the place of introduction of the main flow
- B01F25/31242—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characterised by the place of introduction of the main flow the main flow being injected in the central area of the venturi, creating an aspiration in the circumferential part of the conduit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/25—Mixers with both stirrer and drive unit submerged in the material being mixed
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/26—Installations for stirring-up sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2307/00—Location of water treatment or water treatment device
- C02F2307/08—Treatment of wastewater in the sewer, e.g. to reduce grease, odour
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/20—Activated sludge processes using diffusers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Water Supply & Treatment (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
- Sewage (AREA)
Abstract
[Problem] To provide a sewage treatment system to be disposed in a sewerage system, with which it is possible to cause an atmosphere mixed with sewage at a given place within the sewerage system to stay therein for a long period and it is possible to accelerate decomposition of organic substances contained in the sewage present in the sewerage system. [Solution] A sewage treatment system for use in a sewerage system, the sewage treatment system including a gas introduction means (14) that introduces an atmosphere containing at least oxygen and an atmosphere-mixing means (19) that mixes the atmosphere introduced through the gas introduction means (14) with the sewage present in a sewerage system (4), the means (14) and (19) being disposed in the sewerage system (4), wherein the atmosphere-mixing means (19) has a water introduction means that introduces the sewage present in the sewerage system (4) and a microbubble generator that jets out the atmosphere introduced through the gas introduction means (14), after mixing the atmosphere as microbubbles with the sewage introduced by the water introduction means.
Description
Technical field
The present invention relates to Sewage treatment systems, it utilizes microorganism that organism of containing in the water drain water etc. is decomposed.
Background technology
In the past, ozone (environmental gas) can't enter in the water drain, formed anaerobic state in the water drain.Under above-mentioned anaerobic state, there are the following problems: the aerobic microorganism can't be activated, and the organism in the draining can not get decomposing and residual, further becomes the generation reason of foul smell.Therefore, developed following technology: by arranging the air fed device of the sewage in the water drain of flowing through (environmental gas mixed cell), the aerobic microorganism that contains in the sewage is activated, thereby in water drain, carry out sewage disposal (for example, with reference to patent documentation 1 and 2).In addition, the technology (for example, with reference to patent documentation 3) that is provided with air fed device (environmental gas mixed cell) at the transhipment department of water drain is also arranged.
The prior art document
Patent documentation
Patent documentation 1: Japan opens flat 6-48895 communique in fact
Patent documentation 2: Japanese kokai publication hei 8-182923 communique
Patent documentation 3: Japanese kokai publication hei 8-206682 communique
Summary of the invention
The problem that invention will solve
Yet for the device (air mixed unit) of patent documentation 1～2, there are the following problems for it: for device being arranged in the sewer pipe of having built up, need construction on a large scale, thereby device is arranged at the construction cost increase of sewer pipe.In addition, device for patent documentation 3, device (air mixed unit) can be arranged at the transhipment department of water drain, therefore do not need the sewer pipe of having built up is constructed, can arrange than being easier to, but there are the following problems: the bubble that mixes at the transhipment department of water drain can float and disappear at short notice, therefore can the anaerobic position of generation in during next place's transhipment department in effluent stream.
The present invention is conceived to the problems referred to above and finishes, thereby the object of the present invention is to provide Sewage treatment systems in a kind of water drain, it can make the prescribed position institute mixed environment gas at water drain rest in the sewage for a long time, and can promote the organic decomposition that contains in the sewage in the water drain.
For the means of dealing with problems
In order to address the above problem, the environmental gas that Sewage treatment systems in the water drain of the present invention is provided with containing aerobic at least carries out air-breathing suction unit, and in described water drain, be provided with the environmental gas mixed cell in the sewage that will be mixed into by the environmental gas of described suction unit suction in the above-mentioned water drain, Sewage treatment systems in the described water drain is characterised in that, described environmental gas mixed cell has suction unit and the micro bubble generation unit that the sewage in the above-mentioned water drain is absorbed water, the environmental gas that described micro bubble generation unit will be sucked by above-mentioned suction unit with the mode of micro bubble be mixed into utilize in the sewage that above-mentioned suction unit sucks after with its ejection.
According to above-mentioned feature, by the environmental gas mixed cell, to be sneaked in the sewage by the environmental gas that contains aerobic at least that suction unit sucks, can make the aerobic microorganism that contains in the sewage obtain activation because of this environmental gas thus, and the decomposition of the organism that contains etc. in the sewage in the promotion water drain, and by the micro bubble generation unit environmental gas is sneaked in the sewage in the mode of micro bubble, therefore can make this environmental gas be trapped in the sewage for a long time, thereby prescribed position institute mixed environment gas at water drain to be rested in the sewage for a long time and make whole water drain be aerobic, thereby the huge water drain net that can be connected to sewage work is as Sewage treatment systems.In addition, utilize the micro bubble generation unit that environmental gas is sneaked in the sewage in the mode of micro bubble, even under the situation of a spot of environmental gas amount, also can increase the dissolved oxygen in the sewage thus effectively, can under the situation of air pressure of water drain inside not being brought influence, carry out sewage disposal, thereby the foul smell that can prevent water drain inside leaks to the outside.
Sewage treatment systems in the water drain of the present invention is characterised in that described micro bubble generation unit is to produce by above-mentioned suction unit by the current that above-mentioned suction unit produces environmental gas is carried out air-breathing inspiratory force.
According to this feature, in the prior art, use air-blast device etc. carries out aeration to the sewage in the water drain, and in the case, the air of coercively fed causes the air pressure of water drain inside to become big, and the foul smell of water drain inside may leak to the outside.Yet, in the present invention, can come environmental gas is carried out air-breathing according to the discharge that produces of suction unit, can prevent that the air pressure of water drain inside from raising, thereby the foul smell that can prevent water drain inside leaks to the outside.
Sewage treatment systems in the water drain of the present invention is characterised in that, above-mentioned suction unit carries out air-breathing to the environmental gas of above-mentioned water drain outside, and is provided with environmental gas the conduit to above-mentioned micro bubble generation unit from this suction unit conducting.
According to this feature, the rich oxygen containing fresh environmental gas of water drain outside via conduit by direct conducting to the micro bubble generation unit, thereby rich oxygen containing environmental gas is directed onto in the sewage.
Sewage treatment systems in the water drain of the present invention is characterised in that, above-mentioned micro bubble generation unit has the portion that passes through that the sewage that utilizes above-mentioned suction unit to suck is passed through, and sprays above-mentioned bubble from this small pore by portion's upper shed.
According to this feature, sewage by the micro bubble generation unit pass through portion the time, pore is stopped up by sewage, and in that the suction unit is stopped during by the disappearance of the sewage in the portion, pore forms opening, therefore can prevent foul smell from conduit via the outside of pore adverse current to water drain.
Sewage treatment systems in the water drain of the present invention is characterised in that, above-mentioned micro bubble generation unit is a kind of jet element, and it has: be connected in above-mentioned suction unit and supply with the supply unit of sewage, the ejection portion of compression unit that the sewage of being supplied with by this supply unit is compressed and the sewage ejection that will pass through this compression unit.
According to this feature, compressed by compression unit the time by the sewage that supply unit is supplied with, thereby the flow velocity of sewage becomes at a high speed because of Venturi effect, simultaneously environmental gas is mixed and sprayed by ejection portion with the form of fine bubble, therefore and the jet element that can utilize simple shape constitutes the micro bubble generation unit, can prevent from that the rubbish that contains in the sewage etc. from producing the micro bubble generation unit to stop up.
Sewage treatment systems in the water drain of the present invention is characterised in that it is the following bubbles of 50 μ m that above-mentioned micro bubble generation unit produces bubble diameter.
According to this feature, bubble diameter is that the following bubble of 50 μ m is the longest bubble diameter of the residence time in water.
Sewage treatment systems in the water drain of the present invention is characterised in that, in above-mentioned water drain, be provided with the molten detecting unit of depositing rate that detects the oxygen in the sewage, and be provided with the control unit of above-mentioned environmental gas mixed cell being controlled based on the detected result of this detecting unit.
According to this feature, the molten rate of depositing of the oxygen in can corresponding sewage is to regulating by environmental gas mixed cell institute mixed environment gas volume, thereby the unnecessary running of the gas mixed cell that can control environment, thereby can save be used to the energy expenditure that makes the running of environmental gas mixed cell.
Sewage treatment systems in the water drain of the present invention is characterised in that above-mentioned environmental gas mixed cell is arranged at the transhipment department in the above-mentioned water drain.
According to this feature, the operation of environmental gas mixed cell can easily be set in transhipment department, therefore need not construct on a large scale for the environmental gas mixed cell is set etc., and the transhipment department institute mixed environment gas that can make the regulation position in water drain makes whole water drain resting in the sewage before next place's transhipment department be aerobic, thereby the huge water drain net that can be connected to sewage work is as Sewage treatment systems.
Sewage treatment systems in the water drain of the present invention is characterised in that above-mentioned suction unit is the unit that draws water, and it draws water to the sewage that accumulates in the above-mentioned transhipment department and it is flowed in the high-order sewer pipe.
According to this feature, can be also used as the sewage that the transhipment department inner product is deposited and draw water and flow into suction unit in draw water unit and the environmental gas mixed cell in the high-order sewer pipe, thereby can reduce the construction cost of Sewage treatment systems.
Sewage treatment systems in the water drain of the present invention is characterised in that above-mentioned environmental gas is air, pure oxygen or ozone gas.
According to this feature, the aerobic microorganism that contains in the sewage obtains activation because of air, pure oxygen or ozone gas, thereby can promote the decomposition of the organism that contains in the sewage in the water drain etc.
Description of drawings
Fig. 1 illustrates sewer pipe among the embodiment 1 and the sectional view of transhipment department.
Fig. 2 is the sectional view that transhipment department is shown.
Fig. 3 is the sectional view that air mixing device is shown.
Fig. 4 is the sectional view that filter assemblies is shown.
Fig. 5 is the sectional view that the microvesicle generator is shown.
Fig. 6 is the synoptic diagram that Sewage treatment systems is shown.
Fig. 7 is the sectional view that the transhipment department among the embodiment 2 is shown.
Fig. 8 is the sectional view that the pump transhipment department among the embodiment 3 is shown.
Embodiment
Below based on embodiment the embodiment of the Sewage treatment systems of water drain that be used for to implement the present invention relates to is described.
Embodiment 1
Describe referring to figs. 1 through the Sewage treatment systems in the water drain that relates among the embodiment 1 of Fig. 6.The symbol 1 of Fig. 1 is for being applicable to the Sewage treatment systems in the water drain among the present invention.For this Sewage treatment systems 1, each sewer pipe 3 that this ground surface is buried underground for 2 times transhipment department 4 by being arranged at a plurality of positions by in then be connected to sewage treatment facility (diagram slightly).
As shown in Figure 1, ground surface 2 is formed with the shape with fluctuating.Each sewer pipe 3 tilts according to the mode that has a down dip towards the downstream side, and the sewage of sewer pipe 3 inside can be by under the spontaneous current and flow.And in each transhipment department 4, the sewage that flows into from the sewer pipe 3 of upstream side is detained, and is provided with the lift pump device 5 (unit draws water) that the sewage to this delay draws water.
In addition, for transhipment department 4, in the sewer pipe 3 of upstream side, be provided with the detecting sensor 6 (detecting unit) of the dissolved oxygen numerical value (DO) of the sewage that detects sewer pipe 3 inside in the position near transhipment department 4.This detecting sensor 6 is controlled to obtain the detection data by the control device 7 (control unit) that is arranged at ground surface 2.In addition, each control device 7 is interconnected by wireless (or wired) network, can share by the detected detection data (referring to Fig. 6) of each detecting sensor 6.
As shown in Figure 2, sewer pipe 3 and transhipment department 4 are embedded in ground surface 2 times.Be connected with the upstream-side-end of the sewer pipe 3 in the end of downstream side of sewer pipe 3 of upstream side and downstream side at each transhipment department 4.Need to prove, in the present embodiment, for transhipment department 4, connect in the following manner: than the connecting portion (paper left side) of the sewer pipe 3 of upstream side, the position of connecting portion (paper right side) above more of the sewer pipe 3 that the downstream is surveyed.
In addition, be formed with manhole 8 open when the operating personnel carries out upkeep operation at transhipment department 4.Manhole 8 is provided with cover 10 and makes the internal space 9 of sewer pipe 3 sealed, thereby the foul smell in the sewer pipe 3 can not leak on the ground.
Further, set lift pump device 5 has drinking-water pipe 11 in transhipment department 4.The sewage of smoking with this lift pump device 5 flows in the sewer pipe 3 in downstream sides via drinking-water pipe 11, and the sewer pipe 3 in described downstream side is in the position higher than the sewer pipe 3 of upstream side.Need to prove that drinking-water pipe 11 is fixed on the inwall of transhipment department 4, but lift pump device 5 can load and unload on drinking-water pipe 11.And, lifting chain 12 is installed on the lift pump device 5, the operating personnel can pull up lift pump device 5 and safeguard.
Further, except lift pump device 5, be provided with the air mixing device 19 in the inclusion of air sewage in the internal space 9 of transhipment department 4 (environmental gas mixed cell) in transhipment department 4 inside.Need to prove, same with lift pump 5, lifting chain 13 also is installed on this air mixing device 19, the operating personnel can pull up air mixing device 19 and safeguard.
As shown in Figure 3, air mixing device 19 has the basket portion 20 (sieve basket (ス ト レ ー ナ ー)) of the approximate casing shape of formation on the bottom surface that is arranged at transhipment department 4.The side panel of this basket portion 20 and top panel are the punch metal plate 22 that is formed with a lot of apertures 21.Further, air mixing device 19 has the water suction pump 23 (suction unit) that the sewage that accumulates in the transhipment department 4 is absorbed water.This water suction pump 23 absorbs water from the sewage of 24 pairs of basket portion 20 inside of suction portion of its underpart.
Big rubbish in the sewage etc. can't be filtered by the aperture 21 of punch metal plate 22.In addition, microvesicle generator 26 (micro bubble generation unit) is installed on the front end of self-priming water pump 23 extended pipe connectings 25, the sewage that is sucked by water suction pump 23 is supplied to microvesicle generator 26 and is ejected.
Be connected with the cover 10 extended conduits 14 from manhole 8 on this microvesicle generator 26, the upper end of this conduit 14 is connected in formed hole 15 (with reference to Fig. 2) of portion on the cover 10.This conduit 14 with air (environmental gas) conducting of ground surface 2 to microvesicle generator 26.Need to prove that the hole portion 15 of cover 10 and conduit 14 are the suction unit of present embodiment.
Need to prove that self-priming water pump 23 extended pipe connectings 25 and microvesicle generator 26 are disposed at basket portion 20 inside, microvesicle generator 26 is submerged in underwater and the Xiang Shuizhong ejection sewage of the sewage in the transhipment department 4.And, can be by get rid of the rubbish that stopped up the aperture 21 on the punch metal plate 22 etc. from the current of microvesicle generator 26 ejection.
In addition, microvesicle generator 26 belongs to the shearing of air self-suction.As shown in Figure 5,1 example as this microvesicle generator, microvesicle generator 26 is for constituting the jet element of approximate cylinder shape (straight tube shape), and it has: the ejection portion 29 that the sewage that the pipe connecting 25 that is connected in water suction pump 23 supplies with the supply unit 27 of sewage, supply with this supply unit 27 certainly compresses and makes its compression unit that passes through 28 (by portion) simultaneously and will pass through the sewage ejection of this compression unit 28.
Internal diameter as the supply unit 27 of sewage inlet narrows towards compression unit 28, and 28 enlarged-diameter of interior compression unit without leave of ejection portion 29.Be the internal diameter minimum of compression unit 28, compressed by compression unit 28 time from the sewage that supply unit 27 is supplied with, the flow velocity of sewage becomes at a high speed because of Venturi effect and ejection portion 29 ejections certainly.
In addition, 3 cylinder parts 30,31,32 of constituting drum form the compression unit 28 of microvesicle generator 26 in order to arrange continuously.These cylinder parts 30,31,32 are configured in supply unit 27 and ejection portion 29 interconnective cylindrical vessels, 33 inside.And, compare the internal diameter α of the 1st cylinder part 30 that is arranged at supply unit 27 continuously, the internal diameter β of the 2nd cylinder part 31 of back forms greatlyyer, further, compare the internal diameter β of the 2nd cylinder part 31, the internal diameter γ of the 3rd cylinder part 32 of ejection portion 29 sides forms greatlyyer.And between each cylinder part 30,31,32, namely the inner peripheral surface at compression unit 28 is formed with small section portion 34.And, be connected with the cover 10 extended conduits 14 from manhole 8 on the top of cylindrical vessel 33, and opening has the intake 35 of introducing outside fresh air from the hole of cover 10 one 15.
In addition, as Fig. 2 and shown in Figure 4, be provided with interchangeable filter assemblies 16 on the top of the conduit 14 that is connected in cover 10 in order to air outside is being carried out can not bring rubbish or dust etc. into when air-breathing.Front end from these filter assemblies 16 extended flexible pipes is provided with installation parts 17, and this installation parts 17 is installed in the mode near the hole portion 15 of cover 10.Further, installation parts 17 has the structure that can not introduce the rainwater brought into from hole portion 15 or rubbish etc.And, be provided with the strainer 18 more than 2 layers in the inside of filter assemblies 16, utilize this strainer 18 can remove airborne dust etc.
Need to prove as shown in Figure 2, in cover 10 upper sheds of manhole 8 grades of the combined sewers of interflow rainwater a plurality of hole portion 15 is arranged, conduit 14 can be undertaken air-breathing by 15 pairs of air outside of this hole portion.In addition, have at common cover 10 and to grab hole (plucking the body cave), its be used for the operating personnel insert to be called as open key (バ ー ル キ ー) instrument cover 10 is drawn back.Do not have the cover 10 of hole portion 15 (perhaps less) for manhole 8 grades of shunting water drain of shunting rainwater, can utilize this to grab the hole yet and carry out air-breathing hole portion 15 as opening for 14 pairs of air outside of conduit.
As shown in Figure 5, between each cylinder part 30,31,32 of cylindrical vessel 33 inside of microvesicle generator 26, be formed with the finedraw portion 36 (pore) that the air introduced in the cylindrical vessel 33 are passed through.Need to prove, each cylinder part 30,31,32 and cylindrical vessel 33 etc. screw togather mutually, screw togather state by regulating it, can regulate the opening amplitude of finedraw portion 36.
When sewage passes through compression unit 28, the negative pressure that utilization produces because of Venturi effect (inspiratory force), the air of introducing cylindrical vessels 33 inside from intake 35 is sucked in the compression unit 28 naturally, and further, fragmentation takes place the pressure during by small section portion 34 institute's inhaled air owing to sewage.Institute like this inhaled air forms micro bubble (microvesicle), and while and sewage mix stirring and sprays from ejection portion 29.
And the micro bubble that produces by microvesicle generator 26 is detained air for a long time in water, thereby can supply with more air in sewage.In addition, microvesicle generator 26 produces the following bubble of bubble diameter 50 μ m.Need to prove that as shown in table 1 and table 2, bubble diameter is that the following bubble of 50 μ m is the longest bubble diameter of the residence time in water.
[table 1]
[table 2]
Table 1 shows the dissolved oxygen experimental data over time when using 26 pairs of sewage of microvesicle generator to handle.Shown in this experiment, under the situation of aeration not, As time goes on dissolved oxygen disappears in sewage.And as can be known, handle for the aeration that in the past use air compressor carries out, the remaining dissolved oxygen that has to a certain degree, but handle for the aeration that uses microvesicle generator 26 to carry out, the dissolved oxygen survival time is the longest.
In addition, table 2 shows the dissolved oxygen experimental data over time when using microvesicle generator 26 to produce micro bubble in water.In this experiment, having used water temperature is 15 ℃ clear water, and the DO initial value is 1.45mg/L, and the DO saturation value is 9.76mg/L.When utilizing microvesicle generator 26 to carry out aeration, the dissolved oxygen numerical value in the water sharply rises, and this dissolved oxygen numerical value has surpassed the DO saturation value.And can keep as can be known, the state of saturation of dissolved oxygen numerical value for a long time.
Need to prove that the bubble diameter of the bubble that microvesicle generator 26 produces is below the 50 μ m, comprise also in the described bubble that bubble diameter is at the bubble (nano bubble) below the 0.1 μ m or below the 0.05 μ m.In addition, even bubble diameter is approximately the bubble of 30 μ m～50 μ m, also can obtain effect of sufficient.
As mentioned above, to be sneaked in the sewage by conduit 14 inhaled airs by air mixing device 19, the aerobic microorganism that contains in the sewage is owing to described air obtains activation, and can promote the decomposition of the organism that contains in the sewage in the sewer pipe 3 etc., and described air is sneaked in the sewage in the mode of micro bubble by microvesicle generator 26, described air is detained in sewage for a long time, thereby can make and rested on before air (dissolved oxygen) that transhipment department 4 mixes arrives next place's transhipment department 4 in the sewage and make whole sewer pipe 3 become aerobic, thereby the huge sewer pipe 3 that can be connected to sewage work is as Sewage treatment systems.
In addition, utilize microvesicle generator 26 that air is sneaked in the sewage in the mode of micro bubble, even under the situation of a spot of air capacity, also can increase the dissolved oxygen in the sewage thus effectively, can under the situation of air pressure of sewer pipe 3 inside not being brought influence, carry out sewage disposal, thereby the foul smell that can prevent sewer pipe 3 inside leaks to the outside.
In addition, the current that produce by water suction pump 23 of microvesicle generator 26 produce from 15 pairs of air of hole portion of cover 10 and carry out air-breathing inspiratory force.In the prior art, use air-blast device etc. carries out aeration to the sewage in the sewer pipe 3, and in the case, the air of coercively fed causes the air pressure of sewer pipe 3 inside to raise, and the foul smell of sewer pipe 3 inside may leak to the outside.Yet, in the present embodiment, can come air is carried out air-breathing according to the discharge that water suction pump 23 produces, thereby can prevent that the air pressure of sewer pipe 3 inside from raising, thereby the foul smell that can prevent sewer pipe 3 inside leaks to the outside.
In addition, the hole portion 15 of cover 10 can carry out air-breathing to the environmental gas of outside, and be provided with air the conduit 14 to microvesicle generator 26 from 15 conductings of the hole of this cover 10, thereby outside rich oxygen containing fresh air is switched on to microvesicle generator 26 via conduit 14, thereby rich oxygen containing air is injected in the sewage.
In addition, microvesicle generator 26 has the compression unit 28 (by portion) that the sewage that sucked by water suction pump 23 is passed through, and from the finedraw portion 36 (pore) of these compression unit 28 upper sheds ejection bubble, thus when sewage passes through the compression unit 28 of microvesicle generator 26, finedraw portion 36 is stopped up by sewage, and when the sewage in that water suction pump 23 is stopped in the compression unit 28 disappeared, finedraw portion 36 formed small opening, can prevent that therefore foul smell is extremely outside via finedraw portion 36 adverse currents from conduit 14.
In addition, therefore microvesicle generator 26 can prevent the generation obstructions such as fine garbage that contain in the sewage for forming the so simple shape of jet element of approximate cylinder shape.Need to prove, also contain magnetizable metal such as iron plate in the described rubbish etc.
In addition, air mixing device 19 is arranged in the transhipment department 4 in the water drain net, thereby in transhipment department 4, the operation of air mixing device 19 can easily be set, therefore need not construct on a large scale etc. for air mixing device 19 is set, and can make air that the transhipment department 4 at the regulation position of water drain net mixes make whole sewer pipe 3 become aerobic before next place's transhipment department 4, resting in the sewage, thereby the huge water drain net that can be connected to sewage work is as Sewage treatment systems.
Then, the control for Sewage treatment systems 1 is elaborated.As shown in Figure 6, carry out in the transhipment department 4 of transfer at the water drain net that sewer pipe 3 is formed by connecting, be provided with 1 lift pump device 5 and 1 air mixing device 19.Said apparatus etc. are controlled by control device 7.Further, for each transhipment department 4, be provided with the molten detecting sensor 6 of depositing rate that detects the oxygen in the sewage near the end of the sewer pipe of surveying in the upstream 3.And each control device 7 interconnects by wireless network.
Set control device 7 is sent to set control device 7 in the transhipment department 4 at upstream side with the detection data of detecting sensor 6 in the transhipment department 4 that the downstream is surveyed.Set control device 7 is according to the detection data that receive in the transhipment department 4 of upstream side, according to the molten rate of depositing of the oxygen in the sewage of the sewer pipe 3 in the downstream side of flowing through air mixing device 19 controlled.
The molten rate of depositing of the oxygen in the sewage of the sewer pipe 3 in the downstream side of flowing through is lower than deficiency so that under the situation of the 1st threshold value of aerobic microorganism activation, make air mixing device 19 runnings.In addition, the molten rate of depositing of the oxygen in the sewage of the sewer pipe 3 in the downstream side of flowing through reaches under the situation of the 2nd threshold value that the aerobic microorganism obtains activating, the power that reduces air mixing device 19 turn round (running condition).Further, under the above situation of the 3rd threshold value that the oxygen in the sewage of the sewer pipe 3 in the downstream side of flowing through the molten rate of depositing is fully activated for the aerobic microorganism, make air mixing device 19 stop (non-running condition).Need to prove, can come the air capacity of utilizing air mixing device 19 to mix is regulated by the revolution of regulating water suction pump 23.
As mentioned above, near transhipment department 4, be provided with the molten detecting sensor 6 of depositing rate that detects the oxygen in the sewage, thereby can regulate the air capacity of mixing by air mixing device 19 according to the molten rate of depositing of the oxygen in the sewage, the unnecessary running of control air mixing device 19, thus can save be used to the energy expenditure that makes air mixing device 19 runnings.
Then, describe with reference to the Sewage treatment systems in the water drain that relates among the embodiment 2 of Fig. 7.Need to prove that for the component part identical with the component part shown in above-described embodiment, the repetitive description thereof will be omitted to pay same-sign.
As shown in Figure 7, only be provided with 1 lift pump device 5 in the transhipment department 4 of embodiment 2.The drinking-water pipe 11 of this lift pump device 5 extends to the position of height of the sewer pipe 3 in downstream side.And the drinking-water pipe 11 of lift pump device 5 is provided with microvesicle generator 26.Need to prove that in embodiment 2, lift pump device 5 has constituted the suction unit.
And, when making lift pump device 5 running, the sewage that is detained in the transhipment department 4 is drawn water and utilizes microvesicle generator 26 that micro bubble is mixed, under such state, flow in the sewer pipe 3 in downstream side.That is to say, in embodiment 2, draw water and make it flow into lift pump device 5 in high-order sewer pipe 3 for the sewage that in transhipment department 4, accumulates, the suction unit in draw water unit and the environmental gas mixed cell can be also used as, thereby the construction cost of Sewage treatment systems can be reduced.
Then, the Sewage treatment systems in the water drain that relates to reference to the embodiment 3 of Fig. 8 describes.Need to prove that for the component part identical with the component part shown in above-described embodiment, the repetitive description thereof will be omitted to pay same-sign.
As shown in Figure 8, the pump transhipment department 40 (transhipment department) in the water drain net has big sewage treatment tank 41.Temporarily lodged in this sewage treatment tank 41 from the sewage that sewer pipe 43 imports.And, utilize lift pump device 42 (unit draws water) to import the downstream side.Among this embodiment 3,2 air mixing devices 19 are arranged at sewage treatment tank 41 inside.Further, also be provided with detecting sensor 6 and control device 7.Need to prove that the formation of each air mixing device 19 and detecting sensor 6 etc. is identical with above-described embodiment 1.
Among the embodiment 3, the molten rate of depositing of the oxygen in the sewage in the sewage treatment tank 41 is lower than deficiency so that under the situation of the 1st threshold value of aerobic microorganism activation, make 19 runnings (running condition) of 2 air mixing devices.In addition, the molten rate of depositing of the oxygen in the sewage in the sewage treatment tank 41 reaches under the situation of the 2nd threshold value of aerobic microorganism activation, makes wherein 1 air mixing device 19 running (running condition), and making in addition, 1 air mixing device 19 stops (non-running condition).Further, the molten rate of depositing of the oxygen in the sewage in the sewage treatment tank 41 reaches under the above situation of the 3rd threshold value that the aerobic microorganism fully activated, makes 2 air mixing devices 19 stop (non-running condition).Need to prove that when each air mixing device 19 running, the running power of water suction pump 23 (with reference to Fig. 3) keeps constant always.
As mentioned above, in sewage treatment tank 41, be provided with the molten detecting sensor 6 of depositing rate of the oxygen that detects sewage, thereby can regulate the air capacity of mixing by air mixing device 19 according to the molten rate of depositing of the oxygen in the sewage, the unnecessary running of control air mixing device 19, thus can save be used to the energy expenditure that makes air mixing device 19 runnings.Need to prove, can come the air capacity of mixing by air mixing device 19 is regulated by the revolution of regulating water suction pump 23 (with reference to Fig. 3).
In addition, microvesicle generator 26 (with reference to Fig. 3) produces micro bubble by its specific shape, can pre-determine out the streamflow of effective generation bubble.Therefore, make the running power of the water suction pump 23 (with reference to Fig. 3) of air mixing device 19 keep constant, running condition and non-running condition to each air mixing device 19 control to regulate the air capacity of mixing, and each air mixing device 19 air capacity of mixing keeps stable thus.
As mentioned above, by accompanying drawing embodiments of the invention are illustrated, but concrete formation is not limited in these embodiment, change or the interpolation carried out in the scope that does not break away from clou of the present invention are also included among the present invention.
For example, in the above-described embodiments, as the environmental gas of sneaking into by air mixing device 19 in the sewage, used the air of introducing from ground surface 2, but the environmental gas of sneaking in the sewage by air mixing device 19 also can be pure oxygen or ozone gas etc.The aerobic microorganism that contains in the sewage is because these air, pure oxygen or ozone gas obtain activation, can promote the decomposition of organism that the sewage in the sewer pipe 3 contain etc.
In addition, in above-described embodiment, introduce air outside from ground surface 2, by air mixing device 19 with in this inclusion of air sewage, but can also be so that the mode of air vessel, pure oxygen gas jar or ozone gas jar to be set near transhipment department 4, the environmental gas that will contain oxygen by air mixing device 19 is at least sneaked in the sewage from this jar.Further, can also oxygen concentrator be set at ground surface 2 and concentrate with the oxygen that is contained in to air, by air mixing device 19 this oxygen be sneaked in the sewage.
In addition, in above-described embodiment, be provided with the detecting sensor 6 that the molten rate of depositing to the oxygen in the sewage of sewer pipe 3 inside detects in the position of the transhipment department 4 of the sewer pipe 3 of upstream side and then, but in order to detect the molten rate of depositing of the oxygen in the sewage that is detained transhipment department 4 inside, this detecting sensor 6 also can be arranged at transhipment department 4 inside.
Nomenclature
1 Sewage treatment systems
3 sewer pipes
4 transhipment departments
5 lift pump devices (unit draws water)
6 detecting sensors (detecting unit)
7 control device (control unit)
8 manholes
14 conduits (suction unit)
15 hole portions (suction unit)
19 air mixing devices (environmental gas mixed cell)
23 water suction pumps (suction unit)
26 microvesicle generators (micro bubble generation unit)
27 supply units
28 compression units (by portion)
29 ejection portions
36 finedraw portions (pore)
40 pump transhipment departments (transhipment department)
41 sewage treatment tanks
42 lift pump devices (unit draws water)
43 sewer pipes
Claims (10)
1. the Sewage treatment systems in the water drain, its environmental gas that is provided with containing aerobic at least carries out air-breathing suction unit, and in described water drain, be provided with the environmental gas mixed cell in the sewage of will sneak into from the environmental gas of described suction unit suction in the described water drain
Sewage treatment systems in the described water drain is characterised in that, described environmental gas mixed cell has suction unit and the micro bubble generation unit that the sewage in the described water drain is absorbed water, the environmental gas that described micro bubble generation unit will be sucked by described suction unit with the mode of micro bubble be blended in utilize in the sewage that described suction unit sucks after with its ejection.
2. the Sewage treatment systems in the water drain as claimed in claim 1 is characterized in that, the current that described micro bubble generation unit produces by described suction unit produce by described suction unit environmental gas is carried out air-breathing inspiratory force.
3. the Sewage treatment systems in the water drain as claimed in claim 1 or 2, it is characterized in that, described suction unit carries out air-breathing to the environmental gas of described water drain outside, and is provided with environmental gas the conduit to above-mentioned micro bubble generation unit from this suction unit conducting.
4. the Sewage treatment systems in the water drain as claimed in claim 3, it is characterized in that, described micro bubble generation unit has the portion that passes through that the sewage that utilizes described suction unit to suck is passed through, and from spraying described bubble at described small pore by portion's upper shed.
5. as the Sewage treatment systems in each described water drain in the claim 1～4, it is characterized in that, described micro bubble generation unit is jet element, and it has: be connected in described suction unit and supply with the supply unit of sewage, the ejection portion of compression unit that the sewage of being supplied with by described supply unit is compressed and the sewage ejection that will pass through described compression unit.
6. as the Sewage treatment systems in each described water drain in the claim 1～5, it is characterized in that it is the following bubbles of 50 μ m that described micro bubble generation unit produces bubble diameter.
7. as the Sewage treatment systems in each described water drain in the claim 1～6, it is characterized in that, be provided with the molten detecting unit of depositing rate that detects the oxygen in the sewage in the described water drain, and be provided with the control unit of described environmental gas mixed cell being controlled based on the detected result of described detecting unit.
8. as the Sewage treatment systems in each described water drain in the claim 1～7, it is characterized in that described environmental gas mixed cell is arranged at the transhipment department in the described water drain.
9. the Sewage treatment systems in the water drain as claimed in claim 8 is characterized in that, described suction unit is the unit that draws water, and it draws water to the sewage that accumulates in the described transhipment department and it is flowed in the high-order sewer pipe.
10. as the Sewage treatment systems in each described water drain in the claim 1～9, it is characterized in that described environmental gas is air, pure oxygen or ozone gas.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2011/052887 WO2012108035A1 (en) | 2011-02-10 | 2011-02-10 | Sewage treatment system in sewerage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103269984A true CN103269984A (en) | 2013-08-28 |
Family
ID=46638275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011800623581A Pending CN103269984A (en) | 2011-02-10 | 2011-02-10 | Sewage treatment system in sewerage system |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPWO2012108035A1 (en) |
| KR (1) | KR20140005898A (en) |
| CN (1) | CN103269984A (en) |
| WO (1) | WO2012108035A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105502799A (en) * | 2014-10-20 | 2016-04-20 | 郭其哲 | Liquid-foam separator of circulating water system |
| CN108439616A (en) * | 2018-06-05 | 2018-08-24 | 上海同瑞环保工程有限公司 | A kind of microbial treatment method improving municipal rain pipe, confluence of rainwater and sewage pipe, rain dirt mixed flow tube or municipal wastewater pipe discharge water quality |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT202000016327A1 (en) * | 2020-07-06 | 2022-01-06 | Omitaly Srl | MICRO AND NANO BUBBLES GENERATOR DEVICE |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0826682A (en) * | 1994-05-10 | 1996-01-30 | Riken Kaki Kogyo Kk | Jack |
| JP2002001382A (en) * | 2000-06-21 | 2002-01-08 | Toshiba Corp | Dissolved oxygen measuring controller |
| JP2002011335A (en) * | 2000-06-30 | 2002-01-15 | Tashizen Techno Works:Kk | Fine bubble supply apparatus |
| CN1638852A (en) * | 2002-01-28 | 2005-07-13 | 安东尼·吉布森·怀恩斯 | Mixing apparatus |
| JP2007278003A (en) * | 2006-04-11 | 2007-10-25 | Kubota Corp | Method and device for purifying sewage force-feed pipeline system |
| JP2008119623A (en) * | 2006-11-14 | 2008-05-29 | Ok Engineering:Kk | Loop flow type bubble generating nozzle |
| JP2009189984A (en) * | 2008-02-15 | 2009-08-27 | Ok Engineering:Kk | Loop current type bubble generation nozzle |
| JP4515868B2 (en) * | 2004-09-22 | 2010-08-04 | 清 宮本 | Water treatment system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5712890A (en) * | 1980-06-26 | 1982-01-22 | Mitsubishi Electric Corp | Controller of aeration amount in aeration vessel |
| JPH08206682A (en) * | 1994-12-01 | 1996-08-13 | Mitsuhiro Fujiwara | Oxygen supplying apparatus |
| JP5319231B2 (en) * | 2008-10-10 | 2013-10-16 | オルガノ株式会社 | Biological filtration equipment |
-
2011
- 2011-02-10 WO PCT/JP2011/052887 patent/WO2012108035A1/en active Application Filing
- 2011-02-10 CN CN2011800623581A patent/CN103269984A/en active Pending
- 2011-02-10 JP JP2012556712A patent/JPWO2012108035A1/en active Pending
- 2011-02-10 KR KR1020137015445A patent/KR20140005898A/en not_active Application Discontinuation
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0826682A (en) * | 1994-05-10 | 1996-01-30 | Riken Kaki Kogyo Kk | Jack |
| JP2002001382A (en) * | 2000-06-21 | 2002-01-08 | Toshiba Corp | Dissolved oxygen measuring controller |
| JP2002011335A (en) * | 2000-06-30 | 2002-01-15 | Tashizen Techno Works:Kk | Fine bubble supply apparatus |
| CN1638852A (en) * | 2002-01-28 | 2005-07-13 | 安东尼·吉布森·怀恩斯 | Mixing apparatus |
| JP4515868B2 (en) * | 2004-09-22 | 2010-08-04 | 清 宮本 | Water treatment system |
| JP2007278003A (en) * | 2006-04-11 | 2007-10-25 | Kubota Corp | Method and device for purifying sewage force-feed pipeline system |
| JP2008119623A (en) * | 2006-11-14 | 2008-05-29 | Ok Engineering:Kk | Loop flow type bubble generating nozzle |
| JP2009189984A (en) * | 2008-02-15 | 2009-08-27 | Ok Engineering:Kk | Loop current type bubble generation nozzle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105502799A (en) * | 2014-10-20 | 2016-04-20 | 郭其哲 | Liquid-foam separator of circulating water system |
| CN108439616A (en) * | 2018-06-05 | 2018-08-24 | 上海同瑞环保工程有限公司 | A kind of microbial treatment method improving municipal rain pipe, confluence of rainwater and sewage pipe, rain dirt mixed flow tube or municipal wastewater pipe discharge water quality |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012108035A1 (en) | 2012-08-16 |
| JPWO2012108035A1 (en) | 2014-07-03 |
| KR20140005898A (en) | 2014-01-15 |
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