CN114558355A - Treatment device for chlorine-containing waste residues - Google Patents
Treatment device for chlorine-containing waste residues Download PDFInfo
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- CN114558355A CN114558355A CN202210380331.7A CN202210380331A CN114558355A CN 114558355 A CN114558355 A CN 114558355A CN 202210380331 A CN202210380331 A CN 202210380331A CN 114558355 A CN114558355 A CN 114558355A
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- Prior art keywords
- reaction precipitation
- advection pool
- reaction
- advection
- precipitation
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- 239000002699 waste material Substances 0.000 title claims abstract description 31
- 239000000460 chlorine Substances 0.000 title claims abstract description 20
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 229910052801 chlorine Inorganic materials 0.000 title claims abstract description 19
- 238000006243 chemical reaction Methods 0.000 claims abstract description 85
- 238000001556 precipitation Methods 0.000 claims abstract description 74
- 239000007788 liquid Substances 0.000 claims abstract description 58
- 238000002156 mixing Methods 0.000 claims abstract description 21
- 238000003756 stirring Methods 0.000 claims description 26
- 239000012535 impurity Substances 0.000 claims description 20
- 239000002893 slag Substances 0.000 claims description 12
- 238000012545 processing Methods 0.000 claims description 6
- 238000004062 sedimentation Methods 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 abstract description 19
- 238000000034 method Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000012824 chemical production Methods 0.000 abstract description 2
- 238000013461 design Methods 0.000 abstract description 2
- 238000005660 chlorination reaction Methods 0.000 description 7
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 239000011780 sodium chloride Substances 0.000 description 3
- 229910003074 TiCl4 Inorganic materials 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 2
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
Images
Classifications
-
- 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
- B01D21/28—Mechanical auxiliary equipment for acceleration of sedimentation, e.g. by vibrators or the like
-
- 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
- B01D21/0039—Settling tanks provided with contact surfaces, e.g. baffles, particles
- B01D21/0045—Plurality of essentially parallel plates
-
- 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
-
- 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
- B01D21/245—Discharge mechanisms for the sediments
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D3/00—Halides of sodium, potassium or alkali metals in general
- C01D3/04—Chlorides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G23/00—Compounds of titanium
- C01G23/02—Halides of titanium
- C01G23/022—Titanium tetrachloride
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a treatment device, particularly discloses a treatment device for chlorine-containing waste residues, and belongs to the technical field of design and manufacture of salt chemical production process equipment. Provides a treatment device for chlorine-containing waste residues, which can effectively realize the mixed reaction of various waste salt liquids. The treatment device comprises a reaction precipitation advection pool and a mixing and uniform conveying system, wherein the liquid output end of the mixing and uniform conveying system is connected with the liquid input end of the reaction precipitation advection pool, a clear liquid discharge port is arranged at the tail end of the reaction precipitation advection pool, and a precipitation mechanism is arranged at the bottom of the middle-rear section of the reaction precipitation advection pool.
Description
Technical Field
The invention relates to a treatment device, in particular to a treatment device for chlorine-containing waste residues, and belongs to the technical field of design and manufacture of salt chemical production process equipment.
Background
The main raw material for producing the titanium sponge and the titanium dioxide in China is TiCl4, and the TiCl4 mainly adopts a molten salt chlorination process and a boiling chlorination process. Aiming at the situation that WCa + Mg in the titanium slag raw material is more than 5 percent, the most suitable process at present is a molten salt chlorination process. The generation of a large amount of Cl-containing waste residues, called waste salt for short, by the chlorination of molten salt is commonly adopted at present. Through research and development, the developed new waste salt treatment process needs to effectively mix various waste liquids generated in production, so that the various waste liquids can quickly react in a reactor, elements such as Fe, Mn, Ca, Mg and the like can be gradually separated, and finally NaCl can be recycled and returned to a molten salt chlorination furnace for use.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: provides a treatment device for chlorine-containing waste residues, which can effectively realize the mixed reaction of various waste salt liquids.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a processing apparatus for chlorine waste residue, processing apparatus include reaction and deposit advection pond and mix equal conveying system, mix equal conveying system's liquid output end with the liquid input end of reaction and deposit advection pond is connected, is provided with the clear liquid discharge port at the end of reaction and deposit the advection pond, is provided with sediment mechanism at the bottom of reaction and deposit the middle and back end in the advection pond.
Further, the sedimentation mechanism is one to two impurity collecting tanks which are sequentially arranged at the rear section of the reaction sedimentation advection tank along the flowing direction of the liquid.
The preferred mode of the above scheme is that each impurity collecting tank is in a funnel shape with a large upper part and a small lower part, and a blow-down valve is arranged at the small end of the funnel-shaped impurity collecting tank.
Furthermore, an anticorrosive layer which is resistant to high temperature and acid and alkali environments is coated on the inner side wall of the reaction precipitation advection pool, and an impurity removal slag trap is further arranged at the tail end of the reaction precipitation advection pool.
The preferable mode of the scheme is that the treatment device further comprises a stirring system, and the uniform mixing liquid entering the reaction precipitation advection pool is mixed again at the front section of the reaction precipitation advection pool through the stirring system.
Furthermore, the stirring system is a Roots blower pneumatic stirring system, at least three airflow stirring pipes are arranged at the front section of the reaction precipitation advection pool along the liquid flowing direction, and the distance from the tail end of each airflow stirring pipe to the bottom plate of the reaction precipitation advection pool is less than 50 mm.
The preferable mode of the scheme is that a flowing liquid delaying assembly is further arranged at the front section of the reaction precipitation advection pool, the time of the uniformly mixed liquid entering the reaction precipitation advection pool entering the middle and rear sections of the reaction precipitation advection pool is prolonged by the flowing liquid delaying assembly, and the airflow stirring pipes are arranged in the flowing liquid delaying assembly at intervals along the liquid flowing direction.
Furthermore, the flowing liquid delaying assembly is at least three groups of flow splitting plates which are arranged on the front section of the reaction precipitation advection pool in a staggered mode, uniformly mixed liquid entering the reaction precipitation advection pool flows into the middle-rear section of the reaction precipitation advection pool in an S-shaped mode in the vertical direction through the flow splitting plates, and at least one airflow stirring pipe is arranged between every two adjacent groups of flow splitting plates.
Further, a chute is arranged at the tail section of the reaction sedimentation advection pool, and the lower end of the chute is connected with the top of the last impurity collecting tank.
The invention has the beneficial effects that: the technical scheme provided by the application is that a set of reaction precipitation advection pool and a treatment device of a mixing and uniform conveying system are arranged, the liquid output end of the mixing and uniform conveying system is connected with the liquid input end of the reaction precipitation advection pool, then a clear liquid discharge port is arranged at the tail end of the reaction precipitation advection pool, and a precipitation mechanism is arranged at the bottom of the middle-rear section of the reaction precipitation advection pool. Therefore, the mixed reaction of all waste salt liquids is effectively realized, the problem of recovering chlorine-containing waste salt in the prior art is solved, and conditions are created for separating elements such as Fe, Mn, Ca, Mg and the like from the waste salt through reaction treatment and finally recovering NaCl to return to the molten salt chlorination furnace for use.
Drawings
FIG. 1 is a simplified schematic structural diagram of a chlorine-containing waste residue treatment apparatus according to the present invention.
Labeled as: the device comprises a reaction precipitation advection pool 1, a mixing and uniform conveying system 2, a clear liquid discharge port 3, a precipitation mechanism 4, an impurity collecting tank 5, a blow-down valve 6, an impurity removal slag baffle 7, a stirring system 8, an air flow stirring pipe 9, a reaction precipitation advection pool bottom plate 10, a flowing liquid delay assembly 11, a flow splitting plate 12 and a chute 13.
Detailed Description
FIG. 1 shows a treatment apparatus for chlorine-containing waste residue, which is provided by the present invention and can effectively realize the mixing reaction of various waste salt liquids. The treatment device comprises a reaction precipitation advection pool 1 and a mixing and uniform conveying system 2, wherein the liquid output end of the mixing and uniform conveying system 2 is connected with the liquid input end of the reaction precipitation advection pool 1, a clear liquid discharge port 3 is arranged at the tail end of the reaction precipitation advection pool 1, and a precipitation mechanism 4 is arranged at the bottom of the middle-rear section of the reaction precipitation advection pool 1. The technical scheme provided by the application is that a set of reaction precipitation advection pool and a treatment device of a mixing and uniform conveying system are arranged, the liquid output end of the mixing and uniform conveying system is connected with the liquid input end of the reaction precipitation advection pool, then a clear liquid discharge port is arranged at the tail end of the reaction precipitation advection pool, and a precipitation mechanism is arranged at the bottom of the middle-rear section of the reaction precipitation advection pool. Therefore, the mixed reaction of all waste salt liquids is effectively realized, the problem of recovering chlorine-containing waste salt in the prior art is solved, and conditions are created for separating elements such as Fe, Mn, Ca, Mg and the like from the waste salt through reaction treatment and finally recovering NaCl to return to the molten salt chlorination furnace for use.
In the above embodiment, in order to facilitate the collection of the precipitate, the precipitation mechanism 4 is one to two impurity collecting tanks 5 arranged in the rear section of the reaction precipitation advection pool 1 in sequence along the liquid flow direction. At the moment, each impurity collecting tank 5 is in a funnel shape with a large upper part and a small lower part, and a drain valve 6 is arranged at the small end of the funnel-shaped impurity collecting tank. Simultaneously, for extension this application processing apparatus's life on the inside wall of reaction precipitation advection pond 1 coats and has the anticorrosive coating of resistant high temperature and acid and alkali resistance environment, still is provided with edulcoration slag trap 7 at the tail end of reaction precipitation advection pond 1.
Simultaneously, in order to improve the reaction effect, processing apparatus in this application still include mixing system 8, the even liquid of mixing that gets into reaction and precipitation advection pond 1 passes through mixing system 8 mix once more at the anterior segment of reaction and precipitation advection pond 1. At this time, the stirring system 8 is a roots blower pneumatic stirring system, at least three airflow stirring pipes 9 are arranged at the front section of the reaction precipitation advection pool 1 along the liquid flowing direction, and the distance between the tail end of each airflow stirring pipe 9 and the bottom plate 10 of the reaction precipitation advection pool is less than 50 mm. Correspondingly, a flowing liquid delaying assembly 11 is further arranged at the front section of the reaction precipitation advection pool 1, the uniformly mixed liquid entering the reaction precipitation advection pool 1 passes through the flowing liquid delaying assembly 11 to prolong the time of the uniformly mixed liquid entering the middle and rear sections of the reaction precipitation advection pool 1, and the airflow stirring pipes 9 are arranged in the flowing liquid delaying assembly 11 at intervals along the liquid flowing direction. Preferably, the flowing liquid delaying assembly 11 is at least three sets of flow splitting plates 12 arranged on the front section of the reaction precipitation advection pool in a staggered manner, the uniformly mixed liquid entering the reaction precipitation advection pool 1 flows into the middle and rear sections of the reaction precipitation advection pool 1 in an S-shape in the vertical direction through each set of flow splitting plates 12, and at least one gas flow stirring pipe 9 is arranged between two adjacent sets of flow splitting plates 12.
Of course, in order to collect the reaction sediment as much as possible, a chute 13 is also arranged at the tail section of the reaction sedimentation advection pool 1, and the lower end of the chute 13 is connected with the top of the last impurity collecting tank 5.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
The main content of the invention is as follows:
1. the invention is suitable for various medium solutions, and meets the requirements of temperature and acid-base environment by arranging relevant anticorrosion facilities in the reactor;
2. the invention arranges a mixing facility at the front section of the reaction tank to realize the rapid mixing of reactants;
3. baffle plates are reasonably arranged in the reaction tank, so that the retention time of the solution in the reaction tank is increased, and the position of the general diagram is saved;
4. in the reaction section, in order to prevent various products and impurities in the solution from precipitating, a Roots blower system is used for setting a pneumatic stirring system, so that the solution stirring is accelerated while the precipitation is solved, and a more powerful reaction dynamic condition is created;
5. reasonable slag trap and chute are arranged in the precipitation section, so that impurities can be precipitated and discharged conveniently.
Example one
According to the invention, through researching material properties and process conditions, equipment for quickly reacting and removing impurities of various solutions is developed, and the aims of quick reaction and effective precipitation are effectively fulfilled.
The first step is as follows: selecting materials according to working conditions;
the second step is that: according to the process requirements, calculating the uniform mixing time of the solution in the reactor, designing a reaction section structure and the like;
the third step: according to the precipitation rule of the materials and simulation, impurities in the reaction section are not precipitated;
the fourth step: according to the precipitation law, a precipitation section structure is arranged to accelerate material precipitation and filtration.
Claims (9)
1. A processing apparatus for chlorine-containing waste residue which characterized in that: the treatment device comprises a reaction precipitation advection pool (1) and a mixing and uniform conveying system (2), wherein a liquid output end of the mixing and uniform conveying system (2) is connected with a liquid input end of the reaction precipitation advection pool (1), a clear liquid discharge port (3) is arranged at the tail end of the reaction precipitation advection pool (1), and a precipitation mechanism (4) is arranged at the bottom of the middle-rear section of the reaction precipitation advection pool (1).
2. The apparatus for treating chlorine-containing waste slag according to claim 1, wherein: the sedimentation mechanism (4) is one to two impurity collecting tanks (5) which are sequentially arranged at the rear section of the reaction sedimentation advection pool (1) along the liquid flowing direction.
3. The apparatus for treating chlorine-containing waste slag according to claim 2, wherein: each impurity collecting tank (5) is of a funnel shape with a large upper part and a small lower part, and a blow-down valve (6) is arranged at the small end of the funnel-shaped impurity collecting tank.
4. The processing apparatus for chlorine-containing waste residue according to claim 1, 2 or 3, wherein: the inner side wall of the reaction precipitation advection pool (1) is coated with an anticorrosive coating resistant to high temperature and acid and alkali environments, and the tail end of the reaction precipitation advection pool (1) is also provided with an impurity removal slag trap (7).
5. The apparatus for treating chlorine-containing waste slag according to claim 4, wherein: the treatment device also comprises a stirring system (8), and the uniform mixing liquid entering the reaction precipitation advection pool (1) is mixed again at the front section of the reaction precipitation advection pool (1) through the stirring system (8).
6. The apparatus according to claim 5, wherein: the stirring system (8) is a Roots blower pneumatic stirring system, at least three airflow stirring pipes (9) are arranged at the front section of the reaction precipitation advection pool (1) along the liquid flowing direction, and the distance between the tail end of each airflow stirring pipe (9) and the bottom plate (10) of the reaction precipitation advection pool is less than 50 mm.
7. The apparatus for treating chlorine-containing waste slag according to claim 6, wherein: the front section of the reaction precipitation advection pool (1) is also provided with a flowing liquid delaying assembly (11), the uniform mixing liquid entering the reaction precipitation advection pool (1) passes through the flowing liquid delaying assembly (11) to prolong the time of the middle and rear sections of the reaction precipitation advection pool (1), and the flowing liquid delaying assembly (11) is internally provided with the airflow stirring pipes (9) at intervals along the liquid flowing direction.
8. The apparatus for treating chlorine-containing waste slag according to claim 7, wherein: the flowing liquid delaying assembly (11) is at least three groups of flow splitting plates (12) which are arranged on the front section of the reaction precipitation advection pool in a staggered mode, the uniformly mixed liquid entering the reaction precipitation advection pool (1) flows into the middle rear section of the reaction precipitation advection pool (1) in an S shape in the vertical direction through the flow splitting plates (12), and at least one airflow stirring pipe (9) is arranged between every two adjacent groups of flow splitting plates (12).
9. The apparatus for treating chlorine-containing waste slag according to claim 8, wherein: a chute (13) is also arranged at the tail section of the reaction precipitation advection pool (1), and the lower end of the chute (13) is connected with the top of the last impurity collecting tank (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210380331.7A CN114558355B (en) | 2022-04-08 | 2022-04-08 | Treatment device for chlorine-containing waste residues |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210380331.7A CN114558355B (en) | 2022-04-08 | 2022-04-08 | Treatment device for chlorine-containing waste residues |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114558355A true CN114558355A (en) | 2022-05-31 |
| CN114558355B CN114558355B (en) | 2023-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210380331.7A Active CN114558355B (en) | 2022-04-08 | 2022-04-08 | Treatment device for chlorine-containing waste residues |
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Citations (6)
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| CN107128997A (en) * | 2017-05-24 | 2017-09-05 | 哈尔滨工业大学 | Desulfurization wastewater lateral flow lace curtaining formula precipitation separation device and method |
| CN109399865A (en) * | 2018-11-29 | 2019-03-01 | 北京北排科技有限公司 | One kind being used for breeding wastewater integrated treatment unit and its processing method |
| CN210434043U (en) * | 2019-08-16 | 2020-05-01 | 陈晓燕 | Advection type sedimentation tank capable of reducing dead angles and scaling |
| CN113845191A (en) * | 2021-10-28 | 2021-12-28 | 北京冽泉环保科技有限公司 | A multi-stage high-efficiency coagulation and sedimentation integrated device |
-
2022
- 2022-04-08 CN CN202210380331.7A patent/CN114558355B/en active Active
Patent Citations (6)
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| KR20040061077A (en) * | 2002-12-30 | 2004-07-07 | 코오롱건설주식회사 | High rate anaerobic digester using hydrophilic moving microbial media |
| CN203392928U (en) * | 2013-08-16 | 2014-01-15 | 中国水电顾问集团中南勘测设计研究院 | Baffling reactor for enriching and fixing microbial floras |
| CN107128997A (en) * | 2017-05-24 | 2017-09-05 | 哈尔滨工业大学 | Desulfurization wastewater lateral flow lace curtaining formula precipitation separation device and method |
| CN109399865A (en) * | 2018-11-29 | 2019-03-01 | 北京北排科技有限公司 | One kind being used for breeding wastewater integrated treatment unit and its processing method |
| CN210434043U (en) * | 2019-08-16 | 2020-05-01 | 陈晓燕 | Advection type sedimentation tank capable of reducing dead angles and scaling |
| CN113845191A (en) * | 2021-10-28 | 2021-12-28 | 北京冽泉环保科技有限公司 | A multi-stage high-efficiency coagulation and sedimentation integrated device |
Non-Patent Citations (1)
| Title |
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| 银玉容等: "《环境工程实验》", 华南理工大学出版社, pages: 80 * |
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