CN101296870A - Water treating method and arrangement integrating a fixed-bacteria biological treatment and flocculation-decantation - Google Patents
Water treating method and arrangement integrating a fixed-bacteria biological treatment and flocculation-decantation Download PDFInfo
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- CN101296870A CN101296870A CNA2006800402785A CN200680040278A CN101296870A CN 101296870 A CN101296870 A CN 101296870A CN A2006800402785 A CNA2006800402785 A CN A2006800402785A CN 200680040278 A CN200680040278 A CN 200680040278A CN 101296870 A CN101296870 A CN 101296870A
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- granulated material
- biological treatment
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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
- C02F3/06—Aerobic processes using submerged filters
-
- 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
- B01D21/02—Settling tanks with single outlets for the separated liquid
- B01D21/08—Settling tanks with single outlets for the separated liquid provided with flocculating compartments
-
- 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
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/2488—Feed or discharge mechanisms for settling tanks bringing about a partial recirculation of the liquid, e.g. for introducing chemical aids
-
- 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
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- 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
-
- 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
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/12—Inert solids used as ballast for improving sedimentation
-
- 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
- C02F3/08—Aerobic processes using moving contact bodies
- C02F3/082—Rotating biological contactors
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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)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Activated Sludge Processes (AREA)
Abstract
The inventive water treating method and arrangement successively combine at least one step consisting in biological treating at least one part of pollution contained in said waters by a fixed biomass, wherein a bio-cleaned flow logically obtainable at the and of said step, prior to the entry thereof to a next step, contains less than 2 mg/l of MES, and at least one stage for carrying out a flocculation-decantation by ballasted flocs consisting in transferring biologically treated flow to a mixing area (2), preferentially at a velocity gradient ranging from 10 s-<1> to 1000 s<-1>, wherein at least one type of denser than water insoluble granulated material is injected and suspended matters are aggregated around said granulated material particles, in transferring the flow issued from the mixing area (2) to a decantation area, wherein the clarified flow and decantation sludges mixed with the granulated material are separated, in extracting granulated material from the decantation sludges, in recycling major part thereof is in the mixing area (2) and in removing the decantation sludges separated form the granulated material.
Description
Technical field
The present invention relates to the field of water treatment.
More specifically, the method that relates generally to of the present invention high speed that combines fixation of bacteria biological treatment and the water of carry out a biological disposal upon increases the weight of throw out (flocs lest é s) and clarifies.
The present invention can be used for handling any contain the impurity that can remove by the fixation of bacteria biological treatment and need be after biological treatment clarifying water, for example especially following these (but the equivalence that does not influence similar application is used):
-the waste water handled by bacterial bed, wherein handle and in water, be fixed to immobilization carrier (roller with bacterium, plastics or inorganic lining) go up or be fixed on the rotating carrier (being used for guaranteeing to provide the rotating disk or the drum of bacterium requisite oxygen), to remove the mud of the surplus in the water of carrying out a biological disposal upon;
-waste water or the people's consumption of water handled by MBBR (moving-bed bioreactor), the bacterium that wherein is used to handle pollutent (especially carbon containing, contain the pollutent of ammonia or nitrate form) is fixed to the carrier of small unit size (being generally several millimeters to several centimetres), the density of this carrier is near the density of water, to remove the mud of the surplus in the water of carrying out a biological disposal upon;
-waste water or the people's consumption of water handled by biofiltration on the strainer of having equipped the major diameter material, can continuous wash excessive biology and filter mud, wherein handle with bacterium (in particular for handling carbon containing, containing the bacterium of ammonia or nitrate pollutants) and be fixed on the filtration supports thing that constitutes by ball, right cylinder, bead, perhaps be fixed on the similar substrates, to remove the mud of the surplus in the water of carrying out a biological disposal upon.
Background technology
Under present state of the art, clarify in the traditional secondary settler that the water that is loaded with surplus mud that the fixation of bacteria biological method of the continuous operation by bacterial bed or MBBR type produces (is generally about 0.6m/h to maximum 2m/l) usually about with 1 meter/hour speed is moved, cause the big surface of needs, to guarantee required clarification work after biological treatment.
Combine the clarifying treatment that active sludge treatment and fine sand increase the weight of the flocculating settling of throw out in the described prior art of disclosed french patent application FR2719235 on November 3 nineteen ninety-five, make it possible to carry out water clarification up to 6m/h even higher high settling velocity.
This technology is owing to be used in and increase the weight of the throw out sedimentation and can carry out sedimentation on the 3-10 surface doubly having reduced, but its shortcoming is to need to adopt active sludge as the biological treatment pattern.
And active sludge has various types of defectives.
At first, active sludge asks for a clarification and is suspended in entire treatment bacterial components from the effusive water of activated sludge tank, and the most clarification mud of recirculation, to keep the required bacterial components of processing in the activated sludge tank, this needs the about twice of settled flow greater than pending flow usually, consider that mud recirculation is about pending flow usually, this makes needs to make up large-sized structure.
Secondly, but to the settleability of active sludge require concentration of activated sludge in the pond need to be restricted to about 3-6g suspended substance (MES)/liter value (and this equally also is applicable to the clarifying situation of throw out that increases the weight of according to patent FR2719235, unless provide very high and unpractical economically recirculation rate), consider that given contaminant stream handles required biomass, this is need be with biomass volume required fixedly the time compares big pond volume.
At last, treat that dry substance concentration big in the sedimentation water (3-6g MES/l) need apply big reagent dosage (usually greater than the 1mg/l flocculating polymer) on the flow that approximately doubles that causes owing to mud recirculation, thereby cause big reagent consumption.
Summary of the invention
Main purpose of the present invention is by providing a kind of water treatment method to solve these problems, the method is characterized in that it one after the other comprises the biological treatment step of at least a portion of at least one contained pollutent in described water by fixed biologically matter, the logistics (é coulement) of the biologically pure that obtains when this step finishes comprised the MES less than 2mg/l before it enters into next procedure; And at least one increases the weight of the flocculation-precipitation step of throw out, according to this step:
Make logistics process in the mixing zone of carrying out a biological disposal upon, preferably with 10s
-1-1000s
-1Velocity slope, wherein inject at least a density greater than the insoluble granulated material of water and keep it to suspend, and at least a portion suspended matter accumulated in around the particle of described granulated material,
Make from logistics process the negative area of described mixing zone output, wherein the liquid effluent of separating clarifying and with granulated material blended sedimentation mud,
From sedimentation mud, extract granulated material, and most granulated material be recycled in the described mixing zone,
Extract and the isolating sedimentation mud of granulated material.
Prior art state with respect to active sludge, the high-concentration raw material that the present invention can bring owing to fixed biologically matter method causes compact biological treatment, in secondary settlement, only handle the flow (unique difference is the required optional recirculation of periodicity washing of biomass carrier) that approximates pending flow greatly simultaneously, this is because do not need mud recirculation, handle required bacterium and be fixed on their carrier, this size with precipitation apparatus has reduced first and has reduced factor.
According to version of the present invention, can also be at least a portion of this mixing zone recirculation and the isolating sedimentation mud of granulated material.
Method of the present invention can also extremely be handled greater than height " mirror (the miroir) " speed (flow of processing is divided by the sedimentation surface-area) of 100m/l with 15m/h in secondary settlement.
Method of the present invention can also reduce the amount of employed flocculence polymkeric substance, (it is processed to have only superfluous biomass to need for this MES to be flocculated owing to less amount, that is to say that concentration is less than 2g/l, usually even less than 1g/l) and owing to roughly having only do not purify waste water processed (this is that this recirculation will make pending flow double because the present invention does not adopt mud recirculation).
Preferably, described biological treatment step by fixed biologically matter is selected from following biological treatment type: biological bed, " moving-bed bioreactor " (MBBR), biofilter, biological dish.
Also preferably, described biomass are fixed on the carrier, and this carrier is selected from following type: ball, roller, plate, band, Bauer (pall) type, La Xi (raschig) type or of this type ring, dish or drum, these carriers can be fixed or mobile, perhaps are suspended in the pending water.
Advantageously, the MES concentration of the logistics of the biological treatment that obtains when described biological treatment step finishes is less than 1g/l.
Also advantageously, method of the present invention comprises at least a flocculation agent is injected into step in the described mixing zone.
Preferably, the inventive method comprises that also at least one injects the step of at least a condensing agent (coagulant).This condensing agent can be in the upstream of described flocculation agent, in this mixing zone and/or in the upstream of this mixing zone and/or be injected in any mud recirculation loop.
This condensing agent can be the form (for example iron(ic) chloride or Tai-Ace S 150) of metal-salt or the form of organic coagulants (as poly-DADMAC (diallyl dimethyl ammoniumchloride)).
This injection of inorganic coagulant such as iron(ic) chloride can be reduced to the content of treated water low-down final residual phosphorus value, less than 1 mg/litre, and can not hinder the growth of biomass, because phosphorus is lowered after biological treatment.And part mud can be recycled in the upstream or this mixing zone of this mixing zone, with removal that improves phosphorus and the use of optimizing the condensing agent that injects, even reduces its consumption.
At last, also preferably, the residence time of the logistics of described biological treatment in described mixing zone is 1-10 minute, preferably less than 3 minutes.
The invention still further relates to specialized designs and be used to implement the waste water biological treatment apparatus of aforesaid method, it is characterized in that it comprises:
-by the biological treatment zone of fixed biologically matter, comprise at least one biological treatment reactor,
-mixing zone, this mixing zone are equipped with main-inlet passage (voie) of the logistics of at least one biological treatment that obtains in the exit of described biological treatment zone, second access road and at least one stirring system that at least one links to each other greater than water and water-fast granulated material source with density;
-negative area, it is accepted from the logistics of described mixing zone and is equipped with the extraction passage of clarification liquid effluent and the extraction passage of settled granulated material and mud mixture,
-granulated material recovery zone at the described extraction channel connection of ingress and described settled granulated material and mud mixture, and extracts channel connection at described second access road of exit and granulated material and with excessive mud.
Preferably, described biological treatment zone is the biological treatment zone of bacterial bed, MBBR or biofilter type.
In addition, according to a kind of version of the present invention, this equipment comprises and being used for and at least a portion of the isolating mud of granulated material device to this mixing zone recirculation.
Also preferably, described biological treatment zone comprises the biomass carrier that is selected from following type: ball, and roller, plate, band, draws western type or of this type ring at the Bauer type, dish or drum.
Advantageously, described mixing zone comprises at least one groove, at least one is installed in this groove is fit to make granulated material to keep the whipping appts that suspends.
Also advantageously, equipment according to the present invention comprise at least a flocculation agent is injected into as anionic or cation type polymer as described in the mixing zone or as described in biological treatment logistics as described in device in the main-inlet passage.
Preferably, described equipment comprises the device that injects at least a condensing agent such as metal-salt or organic coagulants, provides in the upstream of the described injection device of described flocculation agent.
Also preferably, described granulated material is to be of a size of 40 microns to 300 microns sand.
Version according to embodiments of the present invention, described negative area is without any thin slice (lamelles).
According to another kind of version, described negative area has thin slice.
Description of drawings
With reference to unique accompanying drawing, can more easily understand the present invention and various advantage thereof by the following description of reading non-limiting embodiments of the present invention, this unique accompanying drawing schematically shows and combines RBC (rotating biological contactor) biological treatment step and increase the weight of the settled equipment of throw out.
Embodiment
With reference to this accompanying drawing, pending water 11 enters in this equipment to arrive and defines in the groove of the biological treatment zone 1 with solid culture through entering the mouth.
This groove has been equipped with rotating biological contactor as shown in the figure at this, and it is made by the vertical dish on the common horizontal axis 12 that is installed in rotation, plays the effect of handling with the carrier of biomass.But point out, can use any other biomass carrier pattern well known by persons skilled in the art and do not deviate from scope of the present invention.
Rotation by carrier plate makes the required air of biological treatment contact with biomass.
The logistics of the biological treatment in this groove (it then only comprises the excessive biomass of processing) has the suspended substance less than 1g/l, and it enters into the groove that defines mixing zone 2 through passage 21.
In the scope of this embodiment, this passage 21 forms the main-inlet passage of the logistics of carrying out a biological disposal upon, and it is reduced to the simple perforate on common wall, and the groove that described wall will define biological treatment zone 1 separates with the groove that defines mixing zone 2.
This groove that defines mixing zone 2 also is equipped with agitator 22 and second access road of the granulated material that the sand that is made of deposition coarse particle device (sousverse) 41 and hydrocyclone (hydrocyclone) 4 constitutes.
At last, this groove is equipped with the injection device 24 of flocculation agent and the injection device 23 of condensing agent, and this condensing agent can be for example iron or aluminium salt, perhaps its can be organic coagulants as poly-DADMAC, provide in the upstream of the injection of flocculation agent.
It may be noted that and depend on its type (preferred iron(ic) chloride) and dosage thereof, this condensing agent can be removed the phosphoric acid salt that keeps in the water of carrying out a biological disposal upon.
The treated water that the sand that contains suspension increases the weight of throw out is directed arriving negative areas 3 through dividing plate 34 subsequently.The sedimentation mixture of mud and sand is collected by curette 31 at this, and pumping arrives hydrocyclone 4 through extracting passage 35.This hydrocyclone 4 forms the recovery zone of granulated material (sand), and its inlet is communicated with extraction passage 35, and its outlet is made of the deposition coarse particle device 41 that forms the granulated material second passage.
All sand reclaim at the deposition coarse particle device 41 of hydrocyclone 4, and be recirculated to mixing zone 2, the mud that most hydrocyclone of while was handled is extracted sludge treatment or storage area (not shown) by circuit 42 with having or do not have part mud.Can be recirculated to mixing zone 2 through installing 421 with at least a portion of the isolating mud of granulated material.
Clarifying water 3 surface takes out via the extraction passage 32 that comprises feeding trough 33 from the negative area.
Described equipment has been used to handle cities and towns water.Used sand has 130 microns effective diameter and 2.65 real density.As condensing agent, content is 50mgFeCl with iron(ic) chloride
3/ l.Used flocculation agent is an anionic flocculant, and content is 1.5mg/l.The sand to hydrocyclone/mud mixture recirculation rate that employing equals 8%, its medium sand recirculation content equals 5kg/m
3Liquid effluent from biological treatment zone 1 output.
Adopt the mirror sedimentation velocity in the negative area that equals 30m/h concomitantly.
The logistics that the exit at the groove that defines biological treatment zone 1 that is obtained obtains contains the MES/l less than 600mg.The employing of this equipment makes it possible to obtain the water less than the processing of 20mg MES/l.
Acquisition is lost less than the very little sand of the water that 3g sand/cubic meter is handled.
Embodiment of the present invention described herein and not meaning that limit the scope of the invention.
Claims (18)
1, water treatment method, it is characterized in that it one after the other comprises the biological treatment step of at least a portion of at least one contained pollutent in described water by fixed biologically matter, the logistics of the biologically pure that obtains when this step finishes comprised the MES less than 2mg/l before it enters into next procedure; And at least one increases the weight of the flocculation-precipitation step of throw out, according to this step:
-make logistics process in the mixing zone of carrying out a biological disposal upon, preferably with 10s
-1-1000s
-1Velocity slope, wherein inject at least a density greater than the insoluble granulated material of water and keep it to suspend, and at least a portion suspended matter accumulated in around the particle of described granulated material,
-make from logistics process the negative area of described mixing zone output, wherein the liquid effluent of separating clarifying and with granulated material blended sedimentation mud,
-from sedimentation mud, extract granulated material, and most granulated material is recycled in the described mixing zone,
-extract and the isolating sedimentation mud of granulated material.
2. the method for claim 1 is characterized in that this method comprises the step at least a portion of recirculation of described mixing zone and the isolating sedimentation mud of granulated material.
3. claim 1 or 2 method is characterized in that described biological treatment step by fixed biologically matter is selected from following biological treatment type: biological bed, " moving-bed bioreactor " (MBBR), biofilter, biological dish.
4. the method for one of claim 1-3, it is characterized in that described biomass are fixed on the carrier, this carrier is selected from following type: ball, roller, plate, band, the Bauer type, draw western type or of this type ring, dish or drum, these carriers can be fixed or mobile, perhaps are suspended in the pending water.
5. the method for one of claim 1-4, the MES concentration of logistics that it is characterized in that the biological treatment that obtains when described biological treatment step finishes is less than 1g/l.
6. the method for one of claim 1-5 is characterized in that this method comprises at least a flocculation agent is injected into step in the described mixing zone.
7. the method for claim 6 is characterized in that it comprises that at least one injects the step of at least a condensing agent in the upstream of described flocculation agent.
8. the method for one of claim 1-7 is characterized in that the residence time of logistics in described mixing zone of described biological treatment is 1-10 minute, preferably less than 3 minutes.
9. be used for implementing each the water treating equipment of method of claim 1-8, it is characterized in that it comprises:
-by the biological treatment zone (1) of fixed biologically matter, comprise at least one biological treatment reactor,
-comprise that the mixing zone (2) of one or more grooves, this mixing zone are equipped with main-inlet passage (21) of the logistics of at least one biological treatment that obtains in the exit of described biological treatment zone (1), second access road (41) and at least one stirring system (22) that at least one links to each other greater than water and water-fast granulated material source with density;
-negative area (3), it is accepted from the logistics of described mixing zone and is equipped with the extraction passage (32) of clarification liquid effluent and the extraction passage (35) of settled granulated material and mud mixture,
-granulated material recovery zone (4), the ingress be used to extract settled granulated material and be communicated with the described extraction passage (35) of mud mixture, and at described second access road (41) of exit and granulated material and extract passage (42) with excessive mud and be communicated with.
10. the equipment of claim 9, it is characterized in that it comprise be used for with at least a portion of the isolating mud of granulated material device (421) to the recirculation of described mixing zone.
11. the equipment of claim 9 or 10 is characterized in that described biological treatment zone (1) is the biological treatment zone of bacterial bed, MBBR or biofilter type.
12. the equipment of claim 11 is characterized in that described biological treatment zone (1) comprises the biomass carrier that is selected from following type: ball, roller, plate, band, draws western type or of this type ring at the Bauer type, dish or drum.
13. each equipment among the claim 9-12 is characterized in that described mixing zone (2) comprises at least one groove, at least one is installed in this groove is fit to make granulated material to keep the whipping appts (22) that suspends.
14. each equipment among the claim 9-13, it is characterized in that this equipment comprise at least a flocculation agent is injected into as anionic or cation type polymer as described in the mixing zone or as described in biological treatment logistics as described in device (24) in the main-inlet passage.
15. the equipment of claim 14 is characterized in that it comprises the device (23) that injects at least a condensing agent such as metal-salt or organic coagulants, provides in the upstream of the described injection device of described flocculation agent.
16. each equipment among the claim 9-15 is characterized in that described granulated material is to be of a size of 40 microns to 300 microns sand.
17. each water treating equipment among the claim 9-16 is characterized in that described negative area is without any thin slice.
18. each water treating equipment among the claim 9-16 is characterized in that described negative area (3) has thin slice.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0511084 | 2005-10-28 | ||
| FR0511084A FR2902417A1 (en) | 2005-10-28 | 2005-10-28 | Biological and flocculation-decantation treatment of water, comprises transferring biologically treated flow to mixing- and decantation area, and extracting granulated material from decantation sludges |
| FR0511669 | 2005-11-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101296870A true CN101296870A (en) | 2008-10-29 |
Family
ID=37076155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006800402785A Pending CN101296870A (en) | 2005-10-28 | 2006-10-23 | Water treating method and arrangement integrating a fixed-bacteria biological treatment and flocculation-decantation |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN101296870A (en) |
| FR (1) | FR2902417A1 (en) |
| ZA (1) | ZA200803136B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103739168A (en) * | 2014-01-20 | 2014-04-23 | 天津机科环保科技有限公司 | Integrated high-efficiency micro-power biochemical treatment box |
| CN104395246A (en) * | 2012-06-11 | 2015-03-04 | 伊沃夸水处理技术有限责任公司 | Treatment using fixed film processes and ballasted settling |
| US9651523B2 (en) | 2012-09-26 | 2017-05-16 | Evoqua Water Technologies Llc | System for measuring the concentration of magnetic ballast in a slurry |
| US10023486B2 (en) | 2007-01-09 | 2018-07-17 | Evoqua Water Technologies Llc | Ballasted sequencing batch reactor system and method for treating wastewater |
| CN109074033A (en) * | 2016-04-01 | 2018-12-21 | 凯米罗总公司 | For optimizing cohesion and/or flocculated method and system in water treatment procedure |
| CN109566514A (en) * | 2018-10-24 | 2019-04-05 | 浙江海洋大学 | Variable flow type cyclic culture method and device |
| CN110393955A (en) * | 2019-08-13 | 2019-11-01 | 青岛思普润水处理股份有限公司 | A kind of new and effective vertical sedimentation tank, MBBR integration apparatus and operation method |
| CN110436712A (en) * | 2012-11-27 | 2019-11-12 | 汉普顿道路环境卫生区 | Method and apparatus for the wastewater treatment for using weight to select |
| CN110467505A (en) * | 2019-09-12 | 2019-11-19 | 广西金穗生态科技股份有限公司 | Recycle sedimentation method and its device and the method for producing organic fertilizer dry powder |
| US11999641B2 (en) | 2021-03-12 | 2024-06-04 | Hampton Roads Sanitation District | Method and apparatus for multi-deselection in wastewater treatment |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3030483A1 (en) * | 2014-12-19 | 2016-06-24 | Degremont | NEW WATER TREATMENT FACILITY |
| US20180223236A1 (en) * | 2015-07-31 | 2018-08-09 | Dieselprime Ltd | Horizontally inclined trough reactor and uses therefor |
-
2005
- 2005-10-28 FR FR0511084A patent/FR2902417A1/en active Pending
-
2006
- 2006-10-23 CN CNA2006800402785A patent/CN101296870A/en active Pending
-
2008
- 2008-04-09 ZA ZA200803136A patent/ZA200803136B/en unknown
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10023486B2 (en) | 2007-01-09 | 2018-07-17 | Evoqua Water Technologies Llc | Ballasted sequencing batch reactor system and method for treating wastewater |
| US10919792B2 (en) | 2012-06-11 | 2021-02-16 | Evoqua Water Technologies Llc | Treatment using fixed film processes and ballasted settling |
| CN104395246A (en) * | 2012-06-11 | 2015-03-04 | 伊沃夸水处理技术有限责任公司 | Treatment using fixed film processes and ballasted settling |
| US9651523B2 (en) | 2012-09-26 | 2017-05-16 | Evoqua Water Technologies Llc | System for measuring the concentration of magnetic ballast in a slurry |
| CN110436712A (en) * | 2012-11-27 | 2019-11-12 | 汉普顿道路环境卫生区 | Method and apparatus for the wastewater treatment for using weight to select |
| CN103739168A (en) * | 2014-01-20 | 2014-04-23 | 天津机科环保科技有限公司 | Integrated high-efficiency micro-power biochemical treatment box |
| CN109074033A (en) * | 2016-04-01 | 2018-12-21 | 凯米罗总公司 | For optimizing cohesion and/or flocculated method and system in water treatment procedure |
| US10988392B2 (en) | 2016-04-01 | 2021-04-27 | Kemira Oyj | Method and system for optimization of coagulation and/or flocculation in a water treatment process |
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| CN109566514A (en) * | 2018-10-24 | 2019-04-05 | 浙江海洋大学 | Variable flow type cyclic culture method and device |
| CN109566514B (en) * | 2018-10-24 | 2021-05-18 | 浙江海洋大学 | Variable-flow circulating culture method and device |
| CN110393955A (en) * | 2019-08-13 | 2019-11-01 | 青岛思普润水处理股份有限公司 | A kind of new and effective vertical sedimentation tank, MBBR integration apparatus and operation method |
| CN110467505A (en) * | 2019-09-12 | 2019-11-19 | 广西金穗生态科技股份有限公司 | Recycle sedimentation method and its device and the method for producing organic fertilizer dry powder |
| US11999641B2 (en) | 2021-03-12 | 2024-06-04 | Hampton Roads Sanitation District | Method and apparatus for multi-deselection in wastewater treatment |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2902417A1 (en) | 2007-12-21 |
| ZA200803136B (en) | 2009-02-25 |
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