CN101259984A - Sewage treatment device and method - Google Patents
Sewage treatment device and method Download PDFInfo
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- CN101259984A CN101259984A CNA2008100046283A CN200810004628A CN101259984A CN 101259984 A CN101259984 A CN 101259984A CN A2008100046283 A CNA2008100046283 A CN A2008100046283A CN 200810004628 A CN200810004628 A CN 200810004628A CN 101259984 A CN101259984 A CN 101259984A
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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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Abstract
The invention provides a sewage treatment device and method which can remove attachment on a film surface efficiently, and prevent flow speed reduction of ultrafiltrating speed or different pressure ascending of film used in film separation activated sludge process. The device includes: a reaction trough (3) that infuses activated sludge and flows into sewage; a plurality of solid-liquid separation films (4) mounted on the reaction trough (3) along vertical direction; a dispersed-air pipe (6) mounted on down side of the solid-liquid separation film (4); a settle-ability filling (8) with 1.2-3.0 specific gravity that is infused in the reaction trough (3); an upstream generating mechanism (7) mounted on down side of the dispersed-air pipe (6); a control apparatus that controls starting, stopping of the dispersed-air pipe (6) and the upstream generating mechanism (7).
Description
Technical field
The present invention relates to have the waste disposal plant and the method for the solid-liquid separation film of the membrane module that has used immersion type.
Background technology
In the waste disposal plant of the membrane module that has used immersion type, use for example to constitute by the flat film of a plurality of external-compression type solid-liquid separation, become the waste disposal plant of configuration vertically at the reactive tank lining endothelium.In such waste disposal plant, diffuser blowing air from the bottom that is arranged on reactive tank, by the bubble that rises from diffuser, the microorganism of the active sludge in constituting reactive tank is supplied with oxygen, the current that generate by the rising that is accompanied by bubble, cleaning film surface, the dirt settling of removal face suppresses to stop up.
In waste disposal plant with solid-liquid separation film, can prevent the outflow of dirty composition, so compare when carrying out solid-liquid separation, can improve concentration of activated sludge and turn round with final tank.Its result can make equipment miniaturization, can reduce to produce mud.
, compare with waste disposal plant in the past, need a large amount of tolerance of loosing, the electric energy that gas blower consumption is a large amount of is so operating cost becomes high price.In recent years, except flat film, use the practicability of device of the film of hollow fiber membrane or monolithic type (monolith type) also improving, all many but face cleans required diffusing tolerance, exist operating cost to become the same problem of high price.
In order to address this problem, as described in [patent documentation 1],, spongiform resin is proposed as mobile packing material.It is to drop into mobile packing material in reactive tank, from be arranged on film below the buoyancy of bubble of diffuser aeration under, mobile packing material is flowed.This flowability packing material contacts with face, thereby can remove dirt settling.
In addition, as described in [patent documentation 2], have on one side film surface with membrane module and contact all the time continuously with the weighting material of organic property and clean, one side purifying treatment water waste disposal plant.
[patent documentation 1] spy opens flat 9-136021 communique
[patent documentation 2] spy opens flat 11-221562 communique
In [patent documentation 1] described membrane separation unit, because mobile packing material is spongiform resin, so have the problem that is difficult to sink.In addition, the proportion and the treating water of spongiform mobile packing material like this are approaching, under the flow action that produces under the situation of aeration for face cleans, can easily in reactive tank, flow, but on the other hand, spongiform mobile packing material soft surface, Young's modulus is low, so impact or during contact membranes, the power that the dirt settling of face is applied is little, can't obtain big dirt settling and peel off effect.In addition, in the spongy of sponge inside, twine fibrous materials such as hair gradually, and then packing material is wrapped with to each other, also has the problem of gigantism.In addition, the surface of spongiform mobile packing material is covered by microorganism in the active sludge or the outer material of this organism gradually easily, but they are more soft than spongy carrier, so have the problem of the effect that can't obtain the dirt settling of removing the film surface.
In addition, record is than great, the little mobile packing material to 0.2mm of volume in [patent documentation 1], but at this moment, shown in Figure 1 as communique, the position of the outlet of diffuser is positioned at the place higher than the bottom surface, so heavy packing material rests on the bottom surface, has not mobile problem in reactive tank.
In the membrane separation unit of putting down in writing in [patent documentation 2], resin with circle or column constitutes mobile packing material, but its proportion is near treating water, the outlet position of diffuser is positioned at the place higher than the bottom surface, so heavy packing material rests on the bottom surface, has not mobile problem in reactive tank.
Summary of the invention
The objective of the invention is to, the dirt settling that can effectively remove the film surface that uses in a kind of film separated activated sludge method is provided and can prevents the flow velocity decline of ultrasiltrated rate or waste disposal plant and the method that the film differential pressure rises.
To achieve these goals, waste disposal plant of the present invention comprises: the dipping active sludge also flows into the reactive tank of sewage; The a plurality of solid-liquid separation films that in reactive tank, vertically are provided with; Be arranged on the diffuser of the below of solid-liquid separation film; Be immersed in proportion in the reactive tank and be 1.2～3.0 settleability weighting material; Be arranged on the life structure of upwards miscarrying of the below of diffuser; Control diffuser and upwards the miscarry starting of life structure, the control device that stops.
In addition, sewage water treatment method flow into sewage by pipe arrangement and is impregnated with in the reactive tank of active sludge, utilize a plurality of solid-liquid separation films that are provided with in the reactive tank, from the sewage after the biological treatment, separate outstanding absurd creature and treating water, take out treating water by pipe arrangement, under the face cleaning model of solid-liquid separation film, be arranged on by control device starting the solid-liquid separation film the below diffuser and be arranged on the life structure of upwards miscarrying of the below of diffuser, by from the aeration of diffuser with from the upwelling of the life structure of upwards miscarrying, making proportion is that 1.2～3.0 settleability weighting material flows, and the face that carries out the solid-liquid separation film cleans.
The invention effect
According to the present invention, can effectively reduce the obstruction on film surface, can suppress that flow velocity descends or the rising of film differential pressure, can realize that face cleans the waste disposal plant of the few low operating cost of the aeration rate of usefulness.
Description of drawings
Fig. 1 is the structure iron of the waste disposal plant of the embodiment of the invention 1.
Fig. 2 is the structure iron of example of the life structure of upwards miscarrying of expression present embodiment.
Fig. 3 is the structure iron of example of the life structure of upwards miscarrying of expression present embodiment.
Fig. 4 is the structure iron of example of the life structure of upwards miscarrying of expression present embodiment.
Fig. 5 is pattern ground expression settleability weighting material mobile figure.
Fig. 6 is the proportion of expression settleability weighting material and the figure of the relation that dirt settling is peeled off effect.
Fig. 7 is the upwards mode chart of the variation of streamflow of common operation mode of expression and face cleaning model.
The figure of the example of the detail of the operating cost when Fig. 8 is expression application present embodiment.
Fig. 9 is the Young's modulus of expression settleability weighting material and the mode chart of the relation that dirt settling is peeled off effect.
Figure 10 is the stereographic map of the 4th example of expression settleability weighting material.
Figure 11 is the longitudinal section of the 6th example of expression settleability weighting material.
Figure 12 is the structure iron of the waste disposal plant of the embodiment of the invention 2.
Figure 13 is the mode chart of the variation of the flow of expression common operation mode and face cleaning model and air quantity.
Figure 14 is the structure iron of the waste disposal plant of the embodiment of the invention 3.
The explanation of symbol:
1,5-pipe arrangement; The 2-active sludge; The 3-reactive tank; 4-solid-liquid separation film; 6,9-diffuser; The 7-life structure of upwards miscarrying; 8-settleability weighting material; 10-settleability packing material body material; The 11-coating.
Embodiment
With reference to accompanying drawing, various embodiments of the present invention are described.
[embodiment 1]
Fig. 1 is the structure iron of the waste disposal plant of embodiment 1.Waste disposal plant comprises: be stored in the active sludge that is used to carry out a biological disposal upon 2 in the reactive tank 3; Be immersed in the reactive tank 3, vertically a plurality of solid-liquid separation films 4 of She Zhiing; Below solid-liquid separation film 4, be configured in the diffuser 6 that is used for active sludge 2 is supplied with oxygen between the solid-liquid separation film 4; Be arranged on the bottom of the reactive tank 3 of diffuser 6 belows, be used to produce the life structure 7 of upwards miscarrying of upwelling; Being used to make sewage is that processed water flows into the pipe arrangement 1 in the reactive tank 3; Be installed on each solid-liquid separation film 4 pipe arrangement 5 that will take out outside waste disposal plant as treating water with solid-liquid separation film 4 filtering processed waters; In reactive tank 3, flow, be used for peeling off the settleability weighting material 8 of dirt settling at the face of solid-liquid separation film 4.
The bottom angled of reactive tank 3 becomes the export department's step-down towards the life structure 7 of upwards miscarrying, and settleability weighting material 8 concentrates on the export department of the life structure 7 of upwards miscarrying.By in the bottom of reactive tank 3 gradient being set like this, form settleability weighting material 8 easier mobile shapes when face cleans.
The life of upwards miscarrying structure 7 for example as shown in Figure 2, by constituting from the pipe arrangement 1 ramose pipe arrangement 21 that flows through processed water, the pump 20 that is connected on the pipe arrangement 21.On pump 20, connect not shown control device,, the starting of control pump 20, stop by signal from control device.
In addition, as shown in Figure 3, also can constitute the life structure 7 of upwards miscarrying, as shown in Figure 4, also can pass through gas blower 23 air supplies with the pipe arrangement 22 in the insertion reaction groove 3, the pump 20 that is connected on the pipe arrangement 22.The life of upwards miscarrying structure 7 is by settleability weighting material 8 mobile device in reactive tank 3 is constituted.
The action of the waste disposal plant that constitutes like this is described.In the film of solid-liquid separation film 4 cleans, sometimes utilize under the effect of the bubble that rises from diffuser 6 aerations (mood exposes to the sun), produce transverse flow (cross flow) current concurrently with the face of solid-liquid separation film 4, the microorganism of active sludge or organism foreign object are blamed the phenomenon to adhere to.Present embodiment adds and makes settleability weighting material 8 take advantage of these transverse flow current to move that the settleability weighting material 8 with kinetic energy impacts the dirt settling of face, peels off the mechanism of dirt settling.
The kinetic energy E that solid had that moves under flow action is by mathematical expression 1 expression.
(mathematical expression 1)
E＝(1/2)m·v
2…(1)
Here, m is the solid quality, and v is a moving of solids speed, and ρ is a solid proportion, and V is the solid volume, and m is the solid quality, represents with mathematical expression 2.
(mathematical expression 2)
m＝ρ·V …(2)
Shown in mathematical expression 1, mathematical expression 2, solid proportion ρ is big more, and the kinetic energy E that solid has is big more, and the proportion ρ of settleability weighting material 8 is big more, settleability weighting material 8 flow and impact or during contact face dirt settling to peel off effect just high more.On the other hand, if proportion ρ is big, settleability just increases, so in the operation mode beyond when face cleans, settleability weighting material 8 is deposited to the bottom of reactive tank 3.The settleability weighting material 8 that is deposited to the bottom focuses on the export department of the life structure 7 of upwards miscarrying along tilting to move.
Under the pattern when face cleans, shown in Figure 5 as the mode chart of settleability weighting material 8 mobile states, according to instruction from control device, 23 startings of pump 20 or gas blower, under the effect from the current that make progress of the life structure 7 of upwards miscarrying, the settleability weighting material 8 that is deposited to the bottom becomes flow state, side flow makes progress, by aeration from diffuser 6, move between face with fast speed, impact or contact face dirt settling.Thus, can effectively peel off the dirt settling of face.If the pattern when face cleans finishes, settleability weighting material 8 just is deposited to the bottom of reactive tank 3 once more.
Fig. 6 represents the proportion of settleability weighting material 8 and the relation that dirt settling is peeled off effect.If the proportion of settleability weighting material 8 increases, then before certain point, the effect of peeling off of dirt settling increases., more than the point, than great and become overweight, the flowability of settleability weighting material 8 descends at certain, and ratio that can't mobile settleability weighting material 8 under the effect of the life structure 7 of upwards miscarrying increases, and as a whole, dirt settling is peeled off effect and descended.The suitable scope of the proportion of settleability weighting material 8 is 1.2～3.0, promptly more than 1.2 and below 3.0.
By such use settleability weighting material 8, the cleaning performance of face increases, so can reduce the aeration air quantity that present situation needs in a large number, running cheaply becomes possibility.Fig. 7 represents common operation mode and produces current upwards and produce a example to the face cleaning model at upper reaches.If set the face cleaning model so off and on, though the cleaning performance of face descends a little, further low-cost running becomes possibility.
An example of the detail of the operating cost when Fig. 8 represents to use present embodiment.When using settleability weighting material 8, again need the driving energy of life structure 7 of upwards miscarrying, but can reduce the aeration rate that is used to peel off the face dirt settling, so as overall, compare with the situation of the mobile spongy packing material of in the past use, can reduce operating cost.
Several examples of settleability weighting material 8 are described here.Settleability weighting material 8 can be their one, also can be combination wherein.
The material of the settleability weighting material 8 of first example is spongiform porosity solid, can be at inner and surface attachment active sludge.Therefore, this spongiform porosity solid also has the effect of carrying microorganism.Biological treatment is fully carried out, so, just can obtain the treating water of better water quality if the concentration of the active sludge 2 in the reactive tank 3 is identical.On the contrary, if make the water quality for the treatment of water identical, just can reduce the concentration of active sludge 2.If the concentration of active sludge 2 reduces, the obstruction of face just reduces, and is used for the aeration rate that face cleans so correspondingly can reduce.
In addition, settleability weighting material 8 has settleability, so proportion is big more a lot of than treating water.Therefore, the proportion ρ of mathematical expression 2 is big, and the value of the kinetic energy E of mathematical expression 1 is big, and the cleaning performance of face increases, so can further reduce the aeration rate that uses in the cleaning of face.
So, as the material of settleability weighting material 8, use spongiform porosity solid, can reduce the aeration rate that is used for the face cleaning, the minimizing of operating cost becomes possibility.
Second example is that the material of settleability weighting material 8 is sand or hard coal, use sand or anthracitic filtration treatment a lot of in the water treatment field contribution, also fully establish by the technology that makes the sand fluidization carry out back washing to the upper reaches intermittently, weather resistance and reliability height, can reduce the cost of device and the cost of settleability weighting material 8, initial cost be declined to become possibility.
The proportion of sand is 2.5 approximately, and anthracitic proportion is 1.5 approximately, so the proportion ρ of mathematical expression 2 is big, the value of the kinetic energy E of mathematical expression 1 increases, and the cleaning performance of face increases than mobile packing material in the past, so can reduce the aeration rate that uses in the face cleaning.
Momentum F Δ t when the solid that moves under flow action impacts face is by mathematical expression 3 expressions.
(mathematical expression 3)
FΔt＝m·v
1-m·v
2…(3)
Here, F is the power that acts on the face, and Δ t is the attack time, and m is a solid weight, v
1Be the solid translational speed after impacting, v
2It is the solid translational speed before impacting.
From mathematical expression 3 as can be known, the attack time, Δ t was short more, and the power F that acts on the face is big more.This attack time Δ t is subjected to hardness (Young's modulus) influence on face and solid surface.When soft surface, the time of power effect is long, thus the increase of the value of attack time Δ t, thus the power F that acts on the face reduces.Sand and hard coal surface are extremely hard, so the value of attack time Δ t is little, the power F that acts on during impact is big.Fig. 9 represents the Young's modulus of settleability weighting material 8 and the relation that dirt settling is peeled off effect.In the low zone of Young's modulus, it is little that dirt settling is peeled off effect, still, is the boundary with the point corresponding with the sticking power of dirt settling, and dirt settling is peeled off effect and sharply risen.That is, if use the high settleability weighting material 8 of Young's modulus, the cleaning performance of face is just big.
So, be used for the aeration rate that face cleans, can reduce operating cost by settleability weighting material 8 being used sand or hard coal, can reducing.
In the 3rd example, the material of settleability weighting material 8 is nonporosity solids, for the nonporosity solid, with the surface have the cubes of glossy plastics or cylinder, ball is enumerated as an example.
Because the nonporosity solid does not have the hole, is the winding of the fibrous material of representative so can not produce with the hair, thereby can produce the settleability weighting material problem of tangle up each other.In addition, material outside the surface is difficult to adhere to the microorganism that comprises in the active sludge or its organism, it is soft that the surface of settleability weighting material 8 can not become.That is, when impacting with the dirt settling of face, the Δ t shown in the mathematical expression 3 can not increase, and the power F that acts on during impact is big.Therefore, the effect that face cleans is big, so can reduce the aeration rate that uses in the face cleaning.
For spongy packing material in the past, if proportion and treating water are same degree, micro bubble climbs up on top of the water just attached to inside, and the function of face cleaning sometimes reduces.Because the nonporosity solid does not have the hole,, there is not such function to reduce so can not adhere to micro bubble in inside.
As mentioned above, be used for the aeration rate that face cleans by settleability weighting material 8 being used the nonporosity solid, can reducing, the reduction of operating cost becomes possibility.
The 4th example forms, and compares the Young's modulus height of end side with the central part that constitutes spongiform each face of porosity solid spatial.Shape as spongiform porosity solid representative has cubes shown in Figure 10 or cylinder.When cubes, compare the Young's modulus height at limit and angle with 6 faces central part separately.When cylinder, the circular plane and the Young's modulus height at lateral junction surface.
When spongiform porosity solid is peeled off the dirt settling of face, in most cases not the face of using, but impact or contact with limit or angle.Therefore, if the Young's modulus height at limit and angle, dirt settling to peel off effect just big.Correspondingly can reduce the aeration rate that is used for the face cleaning, the reduction of operating cost becomes possibility.
As mentioned above, spongiform porosity solid is in the microorganism of inner and surface attachment active sludge, so correspondingly can fully carry out water treatment.As its result, can reduce in order in treating water, to obtain the concentration of the needed active sludge 2 of same water quality, correspondingly just can reduce the obstruction of solid-liquid separation film 4.Therefore, the aeration rate that is used for the face cleaning can be reduced, operating cost can be reduced.
The 5th example is to form mobile weighting material 12 with the nonporosity solid, this nonporosity solid by the surface have the plastic cubes of glossy or cylinder, ball forms.
Because the nonporosity solid does not have the hole, is the winding of the fibrous material of representative so can not produce with the hair.Therefore, can not produce settleability weighting material 12 problem of tangle up each other, material outside the surface is difficult to adhere to the microorganism that comprises in the active sludge or its organism is so that the surface of settleability weighting material 8 can not become is soft.
That is, when impacting with the dirt settling of face, the attack time Δ t of mathematical expression 3 is little, and the power F that acts on during impact on the face is big, so the effect that face cleans is big, can reduce the aeration rate that face uses in cleaning.
For spongy packing material in the past, proportion and treating water are same degree, micro bubble is attached to inside, climb up on top of the water, thus there is the problem of the function reduction of face cleaning, still, the settleability weighting material 8 of present embodiment is the nonporosity solid, micro bubble do not have the hole, so can or not produce such function reduction attached to inside.So, be used for the aeration rate that face cleans by using the nonporosity solid as mobile weighting material 12, can reducing, the reduction of operating cost becomes possibility.
The 6th is for example shown in Figure 11, uses the settleability weighting material 8 through applying.In the present embodiment, implemented to have the coating of the Young's modulus lower than solid-liquid separation film 4 on the surface of settleability weighting material 8.
When solid-liquid separation film 4 is flat film, being lamellar, during for hollow fiber membrane, is the tubulose with light wall pipe wall.In the presence of liquid and bubble, all be difficult to breakage, still, when impacting or contact face, might make the face breakage according to the physical property of settleability weighting material 8.At this moment, need to change film, expend cost for this reason, so operating cost increases.
Face is damaged will 2 kinds of following situations to be enumerated as typical example: the solid of contact resilient modular ratio face height (firmly) and impaired, fragilityization and the situation of breakage herein; Irrelevant with Young's modulus, effect high tension on face and cause the situation of film rupture.When using settleability weighting material 8, if suitably set the size of weighting material with respect to the interval of film, the possibility that acts on high tension as the latter is just low., the former fragilityization and damaged situation are to be subjected to the influence of surface physical characteristic of weighting material but not size.At this moment, if apply settleability weighting material 8, cause damage with regard to not contacting with face with the low material of the starting material of modular ratio film.Its result, it is damaged and the situation changed can reduce operating cost to reduce film.Figure 11 represents the mode chart in the cross section of settleability weighting material 8.Arranged outside coating 11 at the body material 10 of settleability weighting material 8.
[embodiment 2]
According to Figure 12, Figure 13 the embodiment of the invention 2 is described.Present embodiment constitutes similarly to Example 1, but in the present embodiment, as the life structure 7 of upwards miscarrying, uses the aerating apparatus that is arranged on the face below.This aerating apparatus both can be provided with the diffuser 9 of the mobile usefulness of settleability weighting material 8 as shown in figure 12 near the bottom of reactive tank 3, be accompanied by aeration under the effect at upper reaches, settleability weighting material 8 is flowed, also can and with diffuser shown in Figure 16.Here, settleability weighting material 8 can use the settleability weighting material 8 shown in first example～the 6th example, and the scope of the proportion of settleability weighting material 8 is set at 1.2～3.0.
When using upward water flow that settleability weighting material 8 is flowed,, then need the mechanism of temporary transient separate and subside weighting material 8, in order to avoid settleability weighting material 8 block pumps if recycle near the water of the interior water surface of reactive tank.Relative with it, when the diffuser 9 of mobile usefulness of settleability weighting material 8 is set, do not need the mechanism of separate and subside weighting material 8 near the bottom of reactive tank 3, become simple textural, the reduction of the initial cost of device becomes possibility.
When effectively utilizing diffuser 6, when the face cleaning model, temporarily increase the aeration air quantity, improve the flow rate of water flow in the reactive tank 3, settleability weighting material 8 is flowed.Figure 13 represents the example of the variation of the common operation mode of this moment and the flow of face cleaning model and air quantity.
So, as the life structure 7 of upwards miscarrying,,, can reduce the initial cost of device with regard to the further simplification device structure of energy if can and be used in the diffuser 6 that the face below is provided with.
[embodiment 3]
Figure 12 is the structure iron of the waste disposal plant of embodiment 3.Similarly to Example 1, in the reactive tank 3 that the processed sewage 1 that will flow into is carried out a biological disposal upon by active sludge 2, solid-liquid separation film 4 is set, outside waste disposal plant, takes out by pipe arrangement 5 as treating water with solid-liquid separation film 4 filtering processed sewage.Be provided for below solid-liquid separation film 4 to the diffuser 6 of active sludge 2 supply of breathing with oxygen, the bubble generation current from these diffuser 6 aerations also have the effect of the dirt settling that suppresses face.The life structure 7 of upwards miscarrying is set below diffuser 6, mobile weighting material 12 is set in reactive tank 3.
In the present embodiment, in the bottom of reactive tank 3 setting inclination a little, perhaps form plane.Settleability weighting material 8 is formed by following substances: compares with the central part that constitutes each face of spatial, and the material that the Young's modulus of end side is high, the scope of the proportion of settleability weighting material 8 is set at 1.2～3.0.
When settleability weighting material 8 is peeled off the dirt settling of face, be not to use face integral body, but impact or the probability height of contact with limit or angle, by using the high settleability weighting material 8 of Young's modulus at limit and angle, dirt settling to peel off effect big.Correspondingly can reduce the aeration rate that is used for the face cleaning, saving the cost running becomes possibility.
Claims (9)
1. waste disposal plant, it comprises: the reactive tank that utilizes active sludge that the sewage that flows into is carried out a biological disposal upon; The solid-liquid separation film that from the sewage after this biological treatment, separates outstanding absurd creature and treating water; Be arranged on the below of this solid-liquid separation film, be used for described active sludge is supplied with the diffuser of oxygen; Proportion be 1.2～3.0 and in reactive tank mobile settleability weighting material; Be arranged on the bottom of the reactive tank of described diffuser below, produce the life structure of upwards miscarrying to the upper reaches.
2. waste disposal plant, it comprises: the dipping active sludge also flows into the reactive tank of sewage; The a plurality of solid-liquid separation films that in this reactive tank, vertically are provided with; Below this solid-liquid separation film, be arranged on the diffuser between the described solid-liquid separation film; Be immersed in proportion in the described reactive tank and be 1.2～3.0 settleability weighting material; Be arranged on the life structure of upwards miscarrying of the below of described diffuser; Control described diffuser and upwards the miscarry starting of life structure, the control device that stops.
3. sewage water treatment method, wherein:
By pipe arrangement sewage being flow into is impregnated with in the reactive tank of active sludge, utilize a plurality of solid-liquid separation films that are provided with in this reactive tank, from the sewage after the described biological treatment, separate outstanding absurd creature and treating water, take out treating water by pipe arrangement, under the face cleaning model of described solid-liquid separation film, be arranged on by control device starting described solid-liquid separation film the below diffuser and be arranged on the life structure of upwards miscarrying of the below of described diffuser, by from the aeration of diffuser with from the upwelling of the life structure of upwards miscarrying, making proportion is that 1.2～3.0 settleability weighting material flows, and the face that carries out described solid-liquid separation film cleans.
4. waste disposal plant according to claim 1 and 2, wherein:
The described life structure of upwards miscarrying is made of second diffuser of the below that is arranged on diffuser.
5. waste disposal plant according to claim 1 and 2, wherein:
Described settleability weighting material is provided with at least a in the material of the low coating of modular ratio solid-liquid separation film and constitutes by spongiform porosity solid, sand or hard coal, nonporosity solid, on the surface.
6. waste disposal plant according to claim 5, wherein:
Described spongiform porosity solid forms: compare the Young's modulus height of end side with the central part that constitutes each face of spatial.
7. waste disposal plant according to claim 1 and 2, wherein:
The bottom angled of described reactive tank becomes towards the described life structure step-down of upwards miscarrying.
8. sewage water treatment method according to claim 3, wherein:
Described settleability weighting material is provided with at least a in the material of the low coating of modular ratio solid-liquid separation film and constitutes by spongiform porosity solid, sand or hard coal, nonporosity solid, on the surface.
9. sewage water treatment method according to claim 3, wherein:
The bottom angled of described reactive tank becomes towards the described life structure step-down of upwards miscarrying, and when described diffuser and the life structure of upwards miscarrying stopped, described settleability weighting material concentrated on described upwards miscarriage and gives birth to mechanism side.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007059351A JP2008221054A (en) | 2007-03-09 | 2007-03-09 | Drainage treatment apparatus and method |
| JP2007059351 | 2007-03-09 |
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| CN101259984A true CN101259984A (en) | 2008-09-10 |
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| CNA2008100046283A Pending CN101259984A (en) | 2007-03-09 | 2008-01-21 | Sewage treatment device and method |
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| CN (1) | CN101259984A (en) |
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| KR101072530B1 (en) | 2009-11-27 | 2011-10-11 | 흥산환경건설(주) | Membrane Coupled Fluidized-Bed Sequencing Batch Reactor |
| KR101620069B1 (en) * | 2014-05-19 | 2016-05-10 | 인하대학교 산학협력단 | Chemical cleaning method of membrane for fluidized membrane bioreactor |
| JP6371970B2 (en) * | 2014-07-23 | 2018-08-15 | パナソニックＩｐマネジメント株式会社 | Water treatment equipment |
| CN105712589B (en) * | 2016-04-29 | 2018-04-24 | 哈尔滨工业大学水资源国家工程研究中心有限公司 | A kind of filler/ultrafiltration membrane integral water purifying device and its application process |
| CN110054282A (en) * | 2019-04-12 | 2019-07-26 | 南方泵业智水（杭州）科技有限公司 | Integrated sewage treating apparatus |
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2007
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2008
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101844854A (en) * | 2009-03-25 | 2010-09-29 | 株式会社日立工业设备技术 | Waste disposal plant and reuse system |
| CN101844854B (en) * | 2009-03-25 | 2014-08-06 | 株式会社日立制作所 | Sewage treatment apparatus and sewage reuse system |
| CN101817588A (en) * | 2010-05-10 | 2010-09-01 | 东南大学 | Activated sludge reaction separation method and device for sewage by sponge substrate |
| CN102633357A (en) * | 2011-02-14 | 2012-08-15 | 株式会社日立工业设备技术 | Membrane separation active sludge system and membrane separation active sludge method |
| CN102633319A (en) * | 2011-02-14 | 2012-08-15 | 株式会社日立工业设备技术 | Flat film filtering device and flat film filtering method |
| CN102633319B (en) * | 2011-02-14 | 2015-05-20 | 株式会社日立制作所 | Flat film filtering device and flat film filtering method |
| CN103435147A (en) * | 2013-07-23 | 2013-12-11 | 天津工业大学 | Self-cleaning submerged tubular membrane bioreactor |
| CN107530636A (en) * | 2015-03-31 | 2018-01-02 | 水技术国际有限责任公司 | For handling the enhancing membrane bioreactor method of waste water |
| CN108821427A (en) * | 2018-06-06 | 2018-11-16 | 安徽普氏生态环境工程有限公司 | A kind of Novel aerator structure |
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