CN112429865A - Membrane treatment concentrated solution treatment equipment and process - Google Patents
Membrane treatment concentrated solution treatment equipment and process Download PDFInfo
- Publication number
- CN112429865A CN112429865A CN202011066749.8A CN202011066749A CN112429865A CN 112429865 A CN112429865 A CN 112429865A CN 202011066749 A CN202011066749 A CN 202011066749A CN 112429865 A CN112429865 A CN 112429865A
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- tank
- filtering tank
- pressing plate
- filtering
- concentrated solution
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- 239000012528 membrane Substances 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims description 13
- 238000001914 filtration Methods 0.000 claims abstract description 67
- 238000003825 pressing Methods 0.000 claims abstract description 27
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 18
- 239000010959 steel Substances 0.000 claims abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 238000000926 separation method Methods 0.000 claims abstract description 14
- 229910001385 heavy metal Inorganic materials 0.000 claims abstract description 11
- 238000001179 sorption measurement Methods 0.000 claims abstract description 8
- 238000000108 ultra-filtration Methods 0.000 claims abstract description 8
- 239000007921 spray Substances 0.000 claims abstract description 6
- 239000000243 solution Substances 0.000 claims description 37
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 6
- 239000012716 precipitator Substances 0.000 claims description 6
- 239000003463 adsorbent Substances 0.000 claims description 4
- 239000012141 concentrate Substances 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 238000001556 precipitation Methods 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 3
- 229910021536 Zeolite Inorganic materials 0.000 claims description 3
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- YUKQRDCYNOVPGJ-UHFFFAOYSA-N thioacetamide Chemical compound CC(N)=S YUKQRDCYNOVPGJ-UHFFFAOYSA-N 0.000 claims description 3
- DLFVBJFMPXGRIB-UHFFFAOYSA-N thioacetamide Natural products CC(N)=O DLFVBJFMPXGRIB-UHFFFAOYSA-N 0.000 claims description 3
- 239000010457 zeolite Substances 0.000 claims description 3
- 238000010979 pH adjustment Methods 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims 1
- 238000004062 sedimentation Methods 0.000 abstract description 6
- 230000006835 compression Effects 0.000 abstract description 4
- 238000007906 compression Methods 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 description 5
- 239000010802 sludge Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000013049 sediment Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000011045 prefiltration Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 241001233242 Lontra Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000149 chemical water pollutant Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005374 membrane filtration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- 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
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
- C02F1/62—Heavy metal compounds
-
- 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
-
- 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
-
- 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
-
- 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
- C02F2303/14—Maintenance of water treatment installations
-
- 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 discloses a membrane treatment concentrated solution treatment device, which comprises a pre-filtering tank, a pH value adjusting tank, a heavy metal element separation tank, a first filtering tank, an adsorption tank, a second filtering tank and an ultrafiltration membrane filtering tank which are sequentially communicated; the pre-filtering tank, the filter screens are respectively installed in the first filtering tank and the second filtering tank, slide rails are installed on the sides of the tank, support arms are slidably installed on the slide rails, an upper pressing plate and a lower pressing plate are fixed on the support arms, the upper pressing plate is in compression joint with the upper surfaces of the filter screens, the lower pressing plate is in compression joint with the lower surfaces of the filter screens, grooves are formed in the bottom surfaces of the upper pressing plate, steel brush rollers are connected to the grooves in a shaft joint mode, converging grooves are formed in the two sides of the lower pressing plate, a blow-off pipe is connected to the bottoms of the converging grooves, a spray pipe parallel to the steel brush rollers is installed in the middle of the lower pressing plate, a liquid inlet. The invention can improve the defects of the prior art, does not need to carry out separate long-time sedimentation and separation, and has small floor area of equipment.
Description
Technical Field
The invention relates to the technical field of environmental protection, in particular to a membrane treatment concentrated solution treatment device and a membrane treatment concentrated solution treatment process.
Background
The membrane treatment concentrated solution is a liquid obtained by treating and concentrating the landfill leachate by a permeable membrane in a landfill, has high pollution degree and needs to be subjected to independent harmless treatment. The existing treatment process needs to carry out multiple times of sedimentation on concentrated solution, separate sludge sedimentation in the concentrated solution, and each time of sedimentation needs longer waiting time, so that the treatment efficiency of the whole treatment system is not high, and a sedimentation tank with larger occupied area is needed for accommodating a large amount of concentrated solution for sedimentation.
Disclosure of Invention
The invention aims to provide membrane treatment concentrated solution treatment equipment and a membrane treatment concentrated solution treatment process, which can overcome the defects of the prior art, do not need separate long-time precipitation separation and have small occupied area.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows.
A membrane treatment concentrated solution treatment device comprises a pre-filtering tank, a pH value adjusting tank, a heavy metal element separation tank, a first filtering tank, an adsorption tank, a second filtering tank and an ultrafiltration membrane filtering tank which are sequentially communicated;
the device comprises a pre-filtering tank, filter screens are respectively installed in a first filtering tank and a second filtering tank, slide rails are installed on the sides of the tank, support arms are slidably installed on the slide rails, the support arms are driven by a first motor to move on the slide rails in a reciprocating mode, an upper pressing plate and a lower pressing plate are fixed on the support arms, the upper pressing plate is in press connection with the upper surfaces of the filter screens, the lower pressing plate is in press connection with the lower surfaces of the filter screens, the width of the lower pressing plate is larger than that of the upper pressing plate, grooves are formed in the bottom surfaces of the upper pressing plate and are axially connected with steel brush rollers, the steel brush rollers are driven by a second motor to rotate, converging grooves are formed in the two sides of the lower pressing plate, the bottom of the converging grooves is connected with a drain pipe, a spray pipe parallel to the steel brush rollers is installed in the middle of the lower pressing plate, a plurality.
Preferably, a plurality of filter units are arranged on the filter screen in an array form, each filter unit comprises an elastic frame body, two filter plates which are obliquely arranged are symmetrically arranged in the elastic frame body, a plurality of parallel guide grooves are formed in the filter plates, a V-shaped baffle plate is fixed at the bottom of the elastic frame body and is positioned between the two filter plates.
Preferably, a mesh plate is arranged on the outer side of the filter plate.
Preferably, the top of the groove is provided with a high-pressure air injection hole facing the steel brush roller.
The treatment process of the membrane treatment concentrated solution treatment equipment comprises the following steps:
A. injecting the membrane treatment concentrated solution into a pre-filtering tank for primary filtering;
B. b, injecting the membrane treatment concentrated solution treated in the step A into a pH value adjusting tank, and adjusting the pH value to 10-11 by using sodium hydroxide or sulfuric acid;
C. b, injecting the membrane treatment concentrated solution treated in the step B into a heavy metal element separation tank, and adding a precipitator to realize precipitation separation of heavy metal elements;
D. c, injecting the membrane treatment concentrated solution treated in the step C into a first filtering tank for secondary filtering;
E. d, injecting the membrane treatment concentrated solution treated in the step D into an adsorption tank, and adding an adsorbent to adsorb impurities;
F. injecting the membrane treatment concentrated solution treated in the step E into a second filtering tank for third filtering;
G. and F, injecting the membrane treatment concentrated solution treated in the step F into an ultrafiltration membrane filter tank for final filtration, and finishing the treatment of the membrane treatment concentrated solution.
In step B, pH adjustment is carried out using sodium hydroxide or sulfuric acid.
In the step C, the precipitator comprises 5-10 parts of polyaluminium sulfate, 2-3 parts of zeolite powder and 1-2 parts of thioacetamide; the above parts are all parts by mass.
In step E, the adsorbent is activated carbon.
Adopt the beneficial effect that above-mentioned technical scheme brought to lie in: the invention realizes the non-static high-efficiency filtration and separation of sludge sediment by designing the high-efficiency filtration unit. The filter screen adopts the double-deck filtration of "filter plate + otter board", has guaranteed the effective interception to mud precipitate, and the concentrate that flows from last to bottom keeps in and mixes in V-arrangement baffling board department, has improved the contact filter effect of concentrate and filter screen. In the process of filtering sludge sediment by the filter screen, the sludge sediment can be quickly covered by the sludge, and in order to ensure the filtering efficiency of the filter screen, the invention specially designs the upper pressing plate and the lower pressing plate which move in a reciprocating manner to clean the surface of the filter screen so as to ensure the filtering effect of the filter screen. In the clearance in-process, top board and holding down plate extrude the filter screen, because the width of top board is little, so can make the clearance position of filter screen by the top board deformation of pushing down. Along with the deformation of the elastic frame body, the filter plate is shifted outwards synchronously, the cleaning liquid sprayed upwards from the bottom is washed towards the filter plate under the flow guide effect of the V-shaped baffle plate, meanwhile, the steel brush roll cleans the surface of the filter plate, the filter screen is effectively cleaned, and the cleaning liquid flows to the confluence groove to be discharged after flowing down from the filter plate. And the high-pressure air injection hole sweeps the steel brush roll in real time to keep the steel brush roll clean.
Drawings
FIG. 1 is a block diagram of one embodiment of the present invention.
Fig. 2 is a block diagram of a screen cleaning mechanism in accordance with an embodiment of the present invention.
Figure 3 is an enlarged view of one of the filter cells in the screen in accordance with one embodiment of the present invention.
In the figure: 1. a pre-filtration tank; 2. a pH value adjusting tank; 3. a heavy metal element separation tank; 4. a first filtration tank; 5. an adsorption tank; 6. a second filtration tank; 7. an ultrafiltration membrane filter tank; 8. filtering with a screen; 9. a slide rail; 10. a support arm; 11. a first motor; 12. an upper pressure plate; 13. a lower pressing plate; 14. a groove; 15. a steel brush roll; 16. a second motor; 17. a confluence groove; 18. a blow-off pipe; 19. a nozzle; 20. a liquid ejection hole; 21. a liquid inlet pipe; 22. an elastic frame body; 23. filtering the plate; 24. a diversion trench; 25. a V-shaped baffle plate; 26. a screen plate; 27. a high pressure gas orifice; 28. a chute.
Detailed Description
The standard parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description and the description of the attached drawings, and the specific connection mode of each part adopts the conventional means of mature bolts, rivets, welding, sticking and the like in the prior art, and the detailed description is not repeated.
Referring to fig. 1-3, a specific embodiment of the present invention includes a pre-filtration tank 1, a ph adjusting tank 2, a heavy metal element separation tank 3, a first filtration tank 4, an adsorption tank 5, a second filtration tank 6, and an ultrafiltration membrane filtration tank 7, which are sequentially connected;
the pre-filtering tank 1, the first filtering tank 4 and the second filtering tank 6 are respectively provided with a filter screen 8, the sides of the pre-filtering tank 1, the first filtering tank 4 and the second filtering tank 6 are provided with slide rails 9, support arms 10 are slidably arranged on the slide rails 9, the support arms 10 are driven by a first motor 11 to reciprocate on the slide rails 9, an upper pressure plate 12 and a lower pressure plate 13 are fixed on the support arms 10, the upper pressure plate 12 is in compression joint with the upper surface of the filter screen 8, the lower pressure plate 13 is in compression joint with the lower surface of the filter screen 8, the width of the lower pressure plate 13 is larger than that of the upper pressure plate 12, the bottom surface of the upper pressure plate 12 is provided with a groove 14, the groove 14 is in axial connection with a steel brush roll 15, the steel brush roll 15 is driven to rotate by a second motor 16, convergence grooves 17 are arranged on two sides of the lower pressure plate 13, the bottom of the convergence grooves 17 is connected with a drain pipe 18, the middle of the lower pressure plate 13 is provided with, the liquid inlet pipe 21 is positioned above the filter screen 8.
A plurality of filter units are arranged on the filter screen 8 in an array form, each filter unit comprises an elastic frame body 22, two filter plates 23 which are obliquely arranged are symmetrically arranged in the elastic frame body 22, a plurality of guide grooves 24 which are parallel to each other are formed in each filter plate 23, a V-shaped baffle plate 25 is fixed at the bottom of each elastic frame body 22, and each V-shaped baffle plate 25 is positioned between every two filter plates 23. A mesh plate 26 is provided outside the filter sheet 23. The top of the recess 14 is provided with high pressure air injection holes 27 towards the steel brush roller 15.
The treatment process of the membrane treatment concentrated solution treatment equipment comprises the following steps:
A. injecting the membrane treatment concentrated solution into a pre-filtering tank 1 for primary filtering;
B. b, injecting the membrane treatment concentrated solution treated in the step A into a pH value adjusting tank 2, and adjusting the pH value to 10-11;
C. injecting the membrane treatment concentrated solution treated in the step B into a heavy metal element separation tank 3, and adding a precipitator to realize precipitation separation of heavy metal elements;
the precipitator comprises 7 parts of polyaluminium sulfate, 2 parts of zeolite powder and 2 parts of thioacetamide; the parts are all parts by mass;
D. c, injecting the membrane treatment concentrated solution treated in the step C into a first filtering tank 4 for secondary filtering;
E. d, injecting the membrane treatment concentrated solution treated in the step D into an adsorption tank 5, and adding activated carbon to adsorb impurities;
F. injecting the membrane treatment concentrated solution treated in the step E into a second filtering tank 6 for third filtering;
G. and F, injecting the membrane treatment concentrated solution treated in the step F into an ultrafiltration membrane filter tank 7 for final filtration, and finishing the treatment of the membrane treatment concentrated solution.
When filtering, first motor 11 drives support arm 10 and is reciprocating motion, treats filterable concentrate and discharges to the surface of filter screen 8 through feed liquor pipe 21 and filter, and spray tube 19 upwards sprays the washing liquid simultaneously, washs filter screen 8 with the cooperation of steel brush roller 15, and the washing liquid that has mud impurity converges and discharges through blow off pipe 18 behind the groove 17 that converges.
In addition, a slide groove 28 is provided in the elastic frame body 22, and the bottom of the mesh plate 26 is slidably mounted in the slide groove 28. When the elastic frame 22 deforms, the bottom of the screen plate 26 slides towards one side of the filter plate 23, so that the distance between the screen plate 26 and the filter plate 23 is reduced, and the cleaning effect of the cleaning liquid on the screen plate 26 and the filter plate 23 is improved.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A membrane treatment concentrate treatment facility which characterized in that: the device comprises a pre-filtering tank (1), a pH value adjusting tank (2), a heavy metal element separation tank (3), a first filtering tank (4), an adsorption tank (5), a second filtering tank (6) and an ultrafiltration membrane filtering tank (7) which are sequentially communicated;
the device comprises a pre-filtering tank (1), a first filtering tank (4) and a second filtering tank (6), wherein a filter screen (8) is respectively arranged in the pre-filtering tank (1), the first filtering tank (4) and the second filtering tank (6), a slide rail (9) is arranged at the edge of the pre-filtering tank, a supporting arm (10) is slidably arranged on the slide rail (9), the supporting arm (10) is driven by a first motor (11) to reciprocate on the slide rail (9), an upper pressing plate (12) and a lower pressing plate (13) are fixed on the supporting arm (10), the upper pressing plate (12) is in pressure joint with the upper surface of the filter screen (8), the lower pressing plate (13) is in pressure joint with the lower surface of the filter screen (8), the width of the lower pressing plate (13) is larger than that of the upper pressing plate (12), a groove (14) is arranged on the bottom surface of the upper pressing plate (12), a steel brush roller (15) is axially connected with the groove (14), the steel brush roller (, the middle of the lower pressing plate (13) is provided with a spray pipe (19) parallel to the steel brush roller (15), the top of the spray pipe (19) is axially provided with a plurality of liquid spraying holes (20), the supporting arm (10) is provided with a liquid inlet pipe (21) used for conveying the concentrated liquid of the previous-stage membrane treatment, and the liquid inlet pipe (21) is positioned above the filter screen (8).
2. The apparatus of claim 1, wherein: a plurality of filtering units are arranged on the filter screen (8) in an array mode, each filtering unit comprises an elastic frame body (22), two filter plates (23) which are obliquely arranged are symmetrically arranged in the elastic frame body (22), a plurality of guide grooves (24) which are parallel to each other are formed in the filter plates (23), a V-shaped baffle plate (25) is fixed at the bottom of the elastic frame body (22), and the V-shaped baffle plate (25) is located between the two filter plates (23).
3. The apparatus of claim 2, wherein: and a screen plate (26) is arranged on the outer side of the filter plate (23).
4. The apparatus of claim 3, wherein: the top of the groove (14) is provided with a high-pressure air injection hole (27) facing the steel brush roller (15).
5. A process for treating a plant for treating a concentrated solution for membrane treatment according to any one of claims 1 to 4, characterized by comprising the steps of:
A. injecting the membrane treatment concentrated solution into a pre-filtering tank (1) for primary filtering;
B. b, injecting the membrane treatment concentrated solution treated in the step A into a pH value adjusting tank (2), and adjusting the pH value to 10-11;
C. b, injecting the membrane treatment concentrated solution treated in the step B into a heavy metal element separation tank (3), and adding a precipitator to realize precipitation separation of heavy metal elements;
D. c, injecting the membrane treatment concentrated solution treated in the step C into a first filtering tank (4) for secondary filtering;
E. d, injecting the membrane treatment concentrated solution treated in the step D into an adsorption tank (5), and adding an adsorbent to adsorb impurities;
F. injecting the membrane treatment concentrated solution treated in the step E into a second filtering tank (6) for third filtering;
G. and F, injecting the membrane treatment concentrated solution treated in the step F into an ultrafiltration membrane filter tank (7) for final filtration, and finishing the treatment of the membrane treatment concentrated solution.
6. The process of claim 5, wherein: in step B, pH adjustment is carried out using sodium hydroxide or sulfuric acid.
7. The process of claim 6, wherein: in the step C, the precipitator comprises 5-10 parts of polyaluminium sulfate, 2-3 parts of zeolite powder and 1-2 parts of thioacetamide; the above parts are all parts by mass.
8. The process of claim 7, wherein: in step E, the adsorbent is activated carbon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011066749.8A CN112429865A (en) | 2020-10-02 | 2020-10-02 | Membrane treatment concentrated solution treatment equipment and process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011066749.8A CN112429865A (en) | 2020-10-02 | 2020-10-02 | Membrane treatment concentrated solution treatment equipment and process |
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| Publication Number | Publication Date |
|---|---|
| CN112429865A true CN112429865A (en) | 2021-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011066749.8A Pending CN112429865A (en) | 2020-10-02 | 2020-10-02 | Membrane treatment concentrated solution treatment equipment and process |
Country Status (1)
| Country | Link |
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| CN (1) | CN112429865A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1080682A (en) * | 1996-09-06 | 1998-03-31 | Matsushita Electric Ind Co Ltd | Nitrate nitrogen removing device and water purifier using the same |
| CN1232405A (en) * | 1996-10-02 | 1999-10-20 | 阿里哥内德·康塞普特思有限公司 | Filtration apparatus |
| CN209242839U (en) * | 2018-11-28 | 2019-08-13 | 南昌金轩科技有限公司 | A kind of Industrial sewage treatment system |
| CN210674383U (en) * | 2019-09-19 | 2020-06-05 | 南京绿天环保设备有限公司 | Foam type ecological toilet sewage treatment device |
-
2020
- 2020-10-02 CN CN202011066749.8A patent/CN112429865A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1080682A (en) * | 1996-09-06 | 1998-03-31 | Matsushita Electric Ind Co Ltd | Nitrate nitrogen removing device and water purifier using the same |
| CN1232405A (en) * | 1996-10-02 | 1999-10-20 | 阿里哥内德·康塞普特思有限公司 | Filtration apparatus |
| CN209242839U (en) * | 2018-11-28 | 2019-08-13 | 南昌金轩科技有限公司 | A kind of Industrial sewage treatment system |
| CN210674383U (en) * | 2019-09-19 | 2020-06-05 | 南京绿天环保设备有限公司 | Foam type ecological toilet sewage treatment device |
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Application publication date: 20210302 |
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| RJ01 | Rejection of invention patent application after publication |