CN104968615A - Water treatment method and apparatus - Google Patents
Water treatment method and apparatus Download PDFInfo
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- CN104968615A CN104968615A CN201380069146.5A CN201380069146A CN104968615A CN 104968615 A CN104968615 A CN 104968615A CN 201380069146 A CN201380069146 A CN 201380069146A CN 104968615 A CN104968615 A CN 104968615A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/14—Flotation machines
- B03D1/1443—Feed or discharge mechanisms for flotation tanks
- B03D1/1475—Flotation tanks having means for discharging the pulp, e.g. as a bleed stream
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
- C02F9/20—Portable or detachable small-scale multistage treatment devices, e.g. point of use or laboratory water purification systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0084—Enhancing liquid-particle separation using the flotation principle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
- B01D24/10—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being held in a closed container
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/14—Flotation machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/14—Flotation machines
- B03D1/1431—Dissolved air flotation machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/14—Flotation machines
- B03D1/24—Pneumatic
- B03D1/247—Mixing gas and slurry in a device separate from the flotation tank, i.e. reactor-separator type
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
- C02F1/004—Processes for the treatment of water whereby the filtration technique is of importance using large scale industrial sized filters
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/06—Contaminated groundwater or leachate
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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
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
- C02F2201/003—Coaxial constructions, e.g. a cartridge located coaxially within another
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/02—Fluid flow conditions
- C02F2301/024—Turbulent
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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
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
Abstract
The invention relates to a water purification method and apparatus utilizing flotation filtration. Especially, the invention relates to a water purification method based on dissolved air flotation combined with filtration. The invention also relates to an apparatus for implementing the method. The method and apparatus of the invention may be applied to the purification of various industrial waste waters as well as municipal drink water and waste water. The method can also be applied to surface water, groundwater as well as natural mineral waters and spring water.
Description
Technical field
The present invention relates to a kind of method for purifying water comprising flotation.Especially, the present invention relates to a kind of method for purifying water based on dissolved air flotation combined filtering.The present invention also relates to a kind of equipment realizing the method.
Background technology
Flotation is widely used in the purification of industry and municipal wastewater, to remove the impurity as fat, oil, grease and suspended solids.Before flotation, waste water to be clean generally passes through the flocculation chemicals process of mineral compound or organic short chain polymer.Flotation can be used as so-called dissolved air flotation and carries out.The so-called disperse water of this technology utilization, disperse water is passed through dissolved air under stress and is produced in water.Then under atmospheric pressure, air discharges from the disperse water the flotation tank containing waste water or pond.Release air formed small bubbles, be attached to comprise impurity and chemistry of Flotation thing suspended substance on.Bubble makes suspended substance float on water surface, and then impurity can be removed thus, such as, pass through skimmer device.
Traditional enforcement flotation is by having large tank or the pond of rectangular shape.Up-to-date flotation cell, namely so-called third generation pond, has the shape of squarish, and its degree of depth is far longer than width and length.Disperse water, from introducing pond, bottom, forms the bubble risen, and forms the thin bubble layer of one deck (such as 1.5 ~ 2.5 meters) at wastewater surface.Wastewater streams is in the case to being turbulent flow, and the residence time of waste water in reaction channel is short.
WO 2006/131593 A1 discloses a kind of water correction plant, comprises the combination of sedimentation and flotation.This equipment comprises settling bowl, flotation cell, and transport wastewater enters the device of settling bowl and the device of the conveying equipment of purifying waste water out.In addition, this equipment comprises the vertical hybrid channel be located in flotation cell.This hybrid channel comprises microbubble, impurity follow microbubble and and microbubble together rise to the surface of flotation cell.Microbubble produces to the bottom of hybrid channel through another vertical channel downwards by introducing pressurized dispersion water (usual 4 ~ 8bar).When entering hybrid channel from vertical channel through nozzle, under disperse water reduces to condition of normal pressure in hybrid channel, and therefore in hybrid channel, form microbubble.
A shortcoming about existing Water warfare layout is, it needs a large amount of spaces, and its installation method may be loaded down with trivial details.Therefore, there is improving technique and layout, to alleviate the needs of these shortcomings.
Summary of the invention
The object of this invention is to provide a kind of method and the equipment realizing the method, to alleviate above-mentioned shortcoming.Object of the present invention is realized by a kind of method and a kind of equipment, it is characterized in that described in independent claim.The preferred embodiments of the present invention disclose in the appended claims.
The present invention, by conjunction with flotation be filtered into based on a compact layout, can manufacture in factory, then can easily shift, and need the place of Water warfare to install.
Accompanying drawing explanation
Fig. 1 is the sectional view of an embodiment of water correction plant of the present invention.
Fig. 2 is the vertical view of the sectional view of the embodiment of Fig. 1.
Embodiment
The present invention relates to a kind of method and apparatus by utilizing flotation and filtration, purification to contain the water of impurity,
Method and apparatus of the present invention is applicable to various trade effluent, and municipal drinking water and useless water purification.The method is also applicable to surface water, underground water, and natural mineral water and spring.
Method and apparatus of the present invention is proved to be effectively to remove and such as in Water warfare field, is generally considered to be problematic manganese, iron, arsenic.
Method
Method of the present invention uses a substantially columnar container (1), comprises,
At least three vertical flow passages (2,3,4) coaxially arranged, comprise the internal passages (2) of tubulose, form the center-aisle (3) of annular and form annular external channel (4), external channel (4) is containing filtering material (4 '), wherein, connection (2e) is provided with between the internal passages (2) and center-aisle (3) of container bottom, connection (4a) is provided with between the center-aisle (3) and external channel (4) on the top of container, and
Direct pressurized disperse water to the device (5) of the bottom (3a) of center-aisle,
Wherein said method comprises the following steps:
Flocculation, by carrying water to pass internal passages (2) under turbulent-flow conditions downwards, via connecting (2e) bottom (3a) to center-aisle (3),
Flotation, by carrying flocculation water through center-aisle (3) upward, introduce the bottom (3a) of pressurized dispersion water to center-aisle simultaneously, thus form the air bubble (3c) of attachment impurity, air bubble (3c) rises and top (3b) to center-aisle (3) is expanded
Filtering, by carrying the water of flocculation treatment through containing the external channel (4) of filtering material (4 '), leaving impurity on the surface of the inner filtering material (4 ') of external channel (4) simultaneously,
Regain from the bottom of external channel (4) and purify waste water, and
From the surperficial removal of impurity of the filtering material (4 ') of external channel (4).
Method of the present invention is performed in the container (1) of a substantially cylindrical shape.This container comprises at least three vertical flow passages (2,3,4) coaxially arranged, the center-aisle (3) of the formation annular comprise the internal passages (2) of tubulose, arranging around internal passages (2) and the external channel (4) of formation annular arranged around center-aisle (3).External channel (4) is containing being arranged to one or more layers one or more filtering materials (4 ').Filtering material can specifically be selected as the case may be.
In described container (1), between the internal passages (2) and center-aisle (3) of container bottom, be provided with connection (2e), between the center-aisle (3) and external channel (4) of upper vessel portion, be provided with connection (4a).Connecting (2e) and (4a) makes water flow to another passage from a passage.
In a preferred embodiment of the invention, the connection (2e) between internal passages (2) and center-aisle (3) is set to an opening (open space).The height of opening can change as the case may be.
In one embodiment of the invention, the connection (4a) between center-aisle (3) and external channel (4) is set to the open space of center-aisle (3) and external channel (4) top.
In one embodiment of the invention, internal passages (2) and center-aisle (3) respectively direction on the downward direction of the flow direction of water (A) and upwards broaden.This layout contributes to the flco formation in flocculation step and the flotation in flotation step.
In addition, described container (1) comprises the device (5) of direct pressurized disperse water to the bottom (3a) of internal passages.
Pressurized dispersion water guides by any suitable device.This device comprises suitable outlet, to discharge the gas/water mixture of pressurization.In one embodiment of the invention, disperse water is by being provided with band outlet one or more variable valve of (5 ') or one or more Cemented filling of throttle orifice.Wherein, the bottom (3a) of center-aisle is located in outlet.Pressurized dispersion water is by obtaining in water at the dissolved under pressure air of 6 ~ 12kPa scope, and such as 8kPa, to obtain the pressurization air-water mixture comprising little air bubble.When the pressure of air-water mixture discharges under the atmospheric pressure of the bottom of center-aisle, air bubble mixed flocculation water, water impurity is attached on air bubble, and to rising in center-aisle (3).
Described container (1) comprises withdrawal further and purifies waste water or guide washing water to enter the device (5a) of the regeneration of the inner filtering material (4 ') of external channel (4), and wherein said device (5a) is located at the bottom of container.
In one embodiment of the invention, described container (1) can be provided with the device of oxidation, purification water.
In further embodiment of the present invention, described container (1) can be provided with the pipe flocculator or chamber flocculator that pre-treatment purifies waste water.
The flocculation step of the inventive method betides in internal passages (2) (flocculation passage), by carrying water through internal passages downwards under turbulent-flow conditions.In flocculation, the water that need process is injected into flocculation, and namely flco is formed from water impurity, preferably uses flocculation chemicals auxiliary as flocculation.When use flocculation chemicals, described method comprises the pre-treatment step of mixing water and flocculation chemicals.Flocculation chemicals are known in the art.Such as, as typical flocculation chemicals, mineral compound and the organic short chain polymer that can mention.Except flocculation chemicals, regulate the chemicals of pH also can be added into or be preferably added into flocculation chemicals.
Turbulent-flow conditions in flocculation carrys out intrinsic realization by the flow velocity in suitable adjustment internal passages.Preferably, various mixing device is applied, as stirrer.
Water is transferred through connecting (2e) bottom (3a) to center-aisle (3) (flotation passage) from internal passages (2).Continue near the point (5 ') that described flocculation upwards can be imported into pressurized dispersion water at the bottom of center-aisle (3) (3a).
The flotation step of the inventive method betides center-aisle (3), by carrying flocculation water through center-aisle (3) upward, imports the bottom (3a) of pressurized dispersion water to flotation passage simultaneously.The air bubble (3c) of the expansion of attachment impurity is formed, to the top (3b) rising to center-aisle (3).Therefore cause being formed at flco in flocculation step in center-aisle (3) to rising.
Center-aisle (3) can be provided with throttling set (7), such as, cone near the outlet (5 ') of device (5) importing pressurized dispersion water.The object of throttling set assists mixing of flocculation water and disperse water.
From center-aisle (3), the water containing flco is transported to the surface of the inner filtering material (4 ') of external channel (4).Be left on the surface of filtering material containing the flco as the impurity of slurry sewage, and can be collected therefrom.
In filtration step, the water of flocculation treatment is injected into filtration, to remove any residual impurity from water.Filter in external channel (4) (filtration channel) betided containing filtering material.
Purify waste water and to be regained by the bottom of device (5a) from external channel.
In the method for the invention, the water level in external channel (4) is adjustable.Therefore, the filtration in filtration channel can be wet filter or dry filter.
Method of the present invention comprises the regeneration by countercurrent washing of the inner filtering material (4 ') of external channel (4) further.In regeneration, washing water are transferred upward through filtering material (4 ').Become entrained in impurity in filtering material to rising, be then collected from the surface of filtering material.
In one embodiment of the invention, described method comprises the pre-treatment step of oxidation, purification water further.Pretreated object is second order manganese in oxidizing water and iron cpd, realizes manganese, iron, the arsenic removed more efficiently in water.By oxide treatment, can avoid using outside flocculation chemical.
Method of the present invention is proved to be effectively to remove and such as in Water warfare field, is generally considered to be problematic manganese, iron, arsenic.
Equipment
The present invention also relates to a kind of equipment realizing aforesaid method.Described equipment comprises one or two substantially cylindrical circular container (1), comprises
At least three vertical passages (2,3,4) coaxially arranged, comprise the internal passages (2) of tubulose, form the center-aisle (3) of annular and form annular external channel (4), external channel (4) is containing filtering material (4 '), wherein, connection (2e) is provided with between the internal passages (2) and center-aisle (3) of container bottom, connection (4a) is provided with between the center-aisle (3) and external channel (4) on the top of container, and
Direct pressurized disperse water is to the device (5) of the bottom (3a) of center-aisle.
The layout of above-mentioned vertical flow passage is that the current in compact processing vessel obtain purification efficiently and provide enough length.
In a preferred embodiment of the invention, the wall (2 ') of internal passages (2) is set to the inwall of center-aisle (3), the outer wall (3 ') of center-aisle is set to the inwall of external channel (4), and the outer wall (1 ') of container is set to the outer wall of external channel (4).This layout contributes to the compact container of acquisition one further.
In one embodiment of the invention, center-aisle (3) is provided with throttling set (7), such as, guide the centrum of outlet (the 5 ') annex of the device (5) of disperse water.
In further embodiment of the present invention, internal passages (2) and center-aisle (3) broaden downwards and upward respectively on the flow direction of water (A).
In one embodiment of the invention, the device (5) of direct pressurized disperse water comprises and is provided with band outlet one or more variable valve of (5 ') or one or more pipelines of throttle orifice.Wherein, the bottom (3a) of center-aisle is located in described outlet.
In a preferred embodiment of the invention, the connection (2e) between internal passages (2) and center-aisle (3) is set to an opening (open space).The alterable height of opening.Connection (4a) between center-aisle (3) and external channel (4) is set to the open space of center-aisle (3) and external channel (4) top.
Equipment of the present invention comprises withdrawal further and purifies waste water or guide washing water to enter the device (5a) of the regeneration of the inner filtering material (4 ') of external channel (4), and wherein said device (5a) is located at the bottom of container.Therefore, same layout can be used for withdrawal and purifies waste water and regenerate.Such as, described device (5) can comprise a set of tubes.
Equipment of the present invention also can be provided with the device of oxidation, purification water.Equipment of the present invention also can be provided with the pipe flocculator or chamber flocculator that pre-treatment purifies waste water.
Further, equipment of the present invention is provided with guiding and purifies waste water to the device at the top of internal passages (2).Equipment of the present invention is also provided with the device of the surface removal impurity from the filtering material (4 ') of external channel (4), and it is located at the top of external channel (4).
Equipment of the present invention has the following advantages: comprise be necessary element, the flocculator namely in " parcel ", flotation and filtration unit.This equipment can manufacture in factory, is easy to be transferred to the place of needs subsequently and installs and uses.As the impurity of slurry sewage, also comprise the impurity from regeneration, can be easy to remove from the surface of filtering material.
The embodiment of Fig. 1 and Fig. 2
Method and apparatus of the present invention is described by the following embodiment quoting Fig. 1 and Fig. 2.But this does not also mean that any type of restriction of the present invention.
As shown in figs. 1 and 2, equipment of the present invention comprises one or more container 1.Shown in Fig. 1 is the viewgraph of cross-section of the level of columnar container 1.Shown in Fig. 2 is the vertical view of the cross section of same container.
Container 1 comprises internal passages 2 (flocculation passage), center-aisle 3 (flotation passage) and external channel 4 (filtration channel), its mutually around coaxial setting.Internal passages 2 is tubulose, and the Z-axis 6 in vertical direction around container is installed.Center-aisle 3 is installed around internal passages, and is annular.Center-aisle is provided with throttling set 7 near the outlet 5 ' of direct pressurized disperse water.External channel 4 is installed around center-aisle 3, and is annular.Between the tail end that opening 2e is located at the inside 2 of container bottom and the head end of center-aisle 3, flow to another passage to make water from a passage.
As Fig. 1 and Fig. 2, the flow direction of internal passages 2 and center-aisle 3 current shown in arrow A in such as Fig. 1 broadens.
Fig. 1 also show the device 5 with outlet 5 ' guiding disperse water (mixture of Air-Water) to the bottom 3a of internal passages.Fig. 1 also show air bubble 3c, and the impurity contained in water is attached to it.The air bubble of attachment impurity rises and upwards expands in internal passages, forms mud layer 3d.
Further, Fig. 1 shows filtration channel 4 and has filled suitable filtering material 4 '.
Fig. 1 and Fig. 2 also show the outlet 5a providing and shift out in the import 2a of current of not purifying waste water and slave unit and purify waste water.
In the method for the invention, the water containing impurity, preferably together with flocculation chemicals, is guided through import 2a and flocculates to internal passages 2.Technique flow direction as shown by arrow A, direction downward in inner (flocculation) passage occurs.Under turbulent-flow conditions, the short mix of water and preferred flocculation chemicals betides in the head end of the internal passages in parts 2b.Internal passages 2 be also provided with independently blending apparatus to improve flocculation, such as paddle blenders.
From flocculation passage 2, the water containing flco is transferred the opening 2e through container bottom, and upwards to the center-aisle 3 of container, flocculation continues, there until flow to the outlet 5 ' on the bottom 3a of center-aisle 3.Pressurized dispersion water be guided through be provided with outlet 5 ' variable valve or throttle orifice to current.Under the atmospheric condition of flotation passage, the pressure of disperse water is released, and form the air bubble 3c of expansion, flco and impurity adhere on it.The air bubble of the expansion of attachment impurity is to rising in center-aisle, and the impurity then as slurry sewage 3d is collected from the surface of the filtering material 4 ' external channel 4.
The water of flocculation treatment is injected into filtration further by conveying water through the external channel 4 filling suitable filtering material 4 '.Major part impurity is left on the surface of filtering material 4 ', is then therefrom collected as slurry sewage.Any remaining impurity is carried secretly in the filter.Purify waste water by shifting out in outlet 5a slave unit.
For the regeneration of the filtering material of external channel 4 li, washing water are guided to external channel 4 by device 5a from down, are upwards carried through filtering material 4 ' in a counter-current configuration.The impurity be entrained in filtering material rises to the surface of filtering material, and can be collected therefrom.Then, the filtering material of regeneration prepares to be used for new decontamination cycle.The technique that such as EP 1 428 564 B1 discloses can be used for regeneration.
Significantly, to those skilled in the art, along with the progress of technology, concept of the present invention can realize in a different manner.The present invention and embodiment are not limited only to above-mentioned example, can be different in the scope required.
Claims (16)
1. the method for the water of a purification containing impurity, comprise flocculation, flotation and filtration, it is characterized in that, described method uses a substantially columnar container (1), comprise at least three vertical flow passages (2 coaxially arranged, 3, 4), comprise the internal passages (2) of tubulose, form the center-aisle (3) of annular and form the external channel (4) containing filtering material (4 ') of annular, wherein, connection (2e) is provided with between the internal passages (2) and center-aisle (3) of container bottom, connection (4a) is provided with between the center-aisle (3) and external channel (4) on the top of container, with
Direct pressurized disperse water to the device (5) of the bottom (3a) of center-aisle,
Wherein said method comprises the following steps:
Flocculation, by carrying water to pass internal passages (2) under turbulent-flow conditions downwards, via connecting (2e) bottom (3a) to center-aisle (3),
Flotation, by carrying flocculation water through center-aisle (3) upward, introduce the bottom (3a) of pressurized dispersion water to center-aisle simultaneously, thus form the air bubble (3c) of attachment impurity, air bubble (3c) rises and top (3b) to center-aisle (3) is expanded
Filtering, by carrying the water of flocculation treatment through containing the external channel (4) of filtering material (4 '), leaving impurity on the surface of the inner filtering material (4 ') of external channel (4) simultaneously,
Regain from the bottom of external channel (4) and purify waste water, and
From the surperficial removal of impurity of the filtering material (4 ') of external channel (4).
2. the method for claim 1, is characterized in that, continuation near the point (5 ') that is upwards imported into pressurized dispersion water in the bottom (3a) of center-aisle (3) of flocculating.
3. the method as described in above-mentioned any one claim, is characterized in that, described method comprises the pre-treatment step of the chemicals of mixing water and flocculation chemicals and/or adjustment pH further.
4. the method as described in above-mentioned any one claim, is characterized in that, described method comprises the pre-treatment step of oxidation, purification water further.
5. the method as described in above-mentioned any one claim, is characterized in that, described method comprises the pre-treatment step that conveying water passes pipe flocculator or chamber flocculator further.
6. the method as described in above-mentioned any one claim, it is characterized in that, described method comprises the regeneration of the inner filtering material (4 ') of described external channel (4) further, by countercurrent washing upward, to remove the impurity that is entrained in filtering material, and from the surface collection impurity of the filtering material (4 ') of external channel (4).
7. the method as described in above-mentioned any one claim, is characterized in that, the filtration in described external channel is by regulating the water level in external channel to be wet filter or dry filter.
8. to purify waste water a deimpurity equipment, it is characterized in that, comprise one or more substantially columnar container (1), comprise
At least three vertical passages (2,3,4) coaxially arranged, comprise the internal passages (2) of tubulose, form the center-aisle (3) of annular and form the annular external channel (4) containing filtering material (4 '), wherein, connection (2e) is provided with between the internal passages (2) and center-aisle (3) of container bottom, connection (4a) is provided with between the center-aisle (3) and external channel (4) on the top of container, and
Direct pressurized disperse water is to the device (5) of the bottom (3a) of center-aisle.
9. equipment as claimed in claim 8, it is characterized in that, the wall (2 ') of described internal passages (2) is set to the inwall of center-aisle (3), the outer wall (3 ') of center-aisle is set to the inwall of external channel (4), and the outer wall (1 ') of container is set to the outer wall of external channel (4).
10. equipment as claimed in claim 8 or 9, is characterized in that, described center-aisle (3) is provided with throttling set (7) at outlet (the 5 ') annex of the device (5) guiding disperse water.
11. equipment as described in any one of claim 8 to 10, it is characterized in that, described internal passages (2) and center-aisle (3) broaden downwards and upward respectively on the flow direction of water (A).
12. equipment as described in any one of claim 8 to 11, it is characterized in that, the device (5) of described direct pressurized disperse water comprises being provided with is with outlet one or more variable valve of (5 ') or one or more pipelines of throttle orifice, wherein, the bottom (3a) of center-aisle is located in described outlet.
13. equipment as described in any one of claim 8 to 12, it is characterized in that, the connection (4a) between described center-aisle (3) and external channel (4) is set to the open space of center-aisle (3) and external channel (4) top.
14. equipment as described in any one of claim 8 to 13, it is characterized in that, described equipment comprises withdrawal further and purifies waste water or guide washing water to enter the device (5a) of the regeneration of the inner filtering material (4 ') of external channel (4), and wherein said device (5a) is located at the bottom of container.
15. equipment as described in any one of claim 8 to 14, is characterized in that, be also provided with the device of oxidation, purification water.
16. equipment as described in any one of claim 9 to 15, is characterized in that, are also provided with pipe flocculator or chamber flocculator that pre-treatment purifies waste water.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20126238 | 2012-11-23 | ||
| FI20126238A FI126360B (en) | 2012-11-23 | 2012-11-23 | Water treatment method and device |
| PCT/FI2013/051088 WO2014080079A1 (en) | 2012-11-23 | 2013-11-21 | Water treatment method and apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104968615A true CN104968615A (en) | 2015-10-07 |
Family
ID=50775597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380069146.5A Pending CN104968615A (en) | 2012-11-23 | 2013-11-21 | Water treatment method and apparatus |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN104968615A (en) |
| FI (1) | FI126360B (en) |
| WO (1) | WO2014080079A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108773939A (en) * | 2018-07-09 | 2018-11-09 | 杭州绿环保技术有限公司 | A kind of water process water circle device |
| CN117383766B (en) * | 2023-12-06 | 2024-03-01 | 北京百灵天地环保科技股份有限公司 | Multi-layer purification device for multi-impurity mine water |
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Also Published As
| Publication number | Publication date |
|---|---|
| FI20126238A (en) | 2014-05-24 |
| WO2014080079A1 (en) | 2014-05-30 |
| FI126360B (en) | 2016-10-31 |
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Application publication date: 20151007 |