CN221988351U - Acid-base cleaning water recovery system in silicon solar energy industry - Google Patents
Acid-base cleaning water recovery system in silicon solar energy industry Download PDFInfo
- Publication number
- CN221988351U CN221988351U CN202420176534.9U CN202420176534U CN221988351U CN 221988351 U CN221988351 U CN 221988351U CN 202420176534 U CN202420176534 U CN 202420176534U CN 221988351 U CN221988351 U CN 221988351U
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- reverse osmosis
- water
- tank
- acid
- wastewater
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 110
- 238000004140 cleaning Methods 0.000 title claims abstract description 28
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 18
- 239000010703 silicon Substances 0.000 title claims abstract description 18
- 238000011084 recovery Methods 0.000 title claims abstract description 15
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 65
- 238000000108 ultra-filtration Methods 0.000 claims abstract description 40
- 239000002351 wastewater Substances 0.000 claims abstract description 37
- 238000001914 filtration Methods 0.000 claims description 27
- 239000012528 membrane Substances 0.000 claims description 24
- 239000004576 sand Substances 0.000 claims description 22
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 4
- 229910052731 fluorine Inorganic materials 0.000 claims description 4
- 239000011737 fluorine Substances 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 abstract description 9
- 238000009287 sand filtration Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000004065 wastewater treatment Methods 0.000 abstract description 4
- 238000011161 development Methods 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 18
- 239000002585 base Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 239000002253 acid Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 239000006004 Quartz sand Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 241000700605 Viruses Species 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000010979 pH adjustment Methods 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000029219 regulation of pH Effects 0.000 description 2
- 238000011001 backwashing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006115 defluorination reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- 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
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
本实用新型公开了一种硅太阳能行业酸碱清洗水回收系统，包括酸碱废水pH调节池、慢提拉废水pH调节池、砂滤装置、超滤装置、第一反渗透装置、第二反渗透装置、产水池和浓水池；所述酸碱废水pH调节池、砂滤装置、超滤装置和第一反渗透装置依次连通，所述第一反渗透装置的出水口分别连通产水池和浓水池；所述慢提拉废水pH调节池和第二反渗透装置，所述第二反渗透装置的出水口分别连通所述产水池和所述第一反渗透装置；因此本实用新型相对现有技术废水处理系统，能够对废水进行有效处理，降低废水排放量，降低处理成本，处理后的水能够循环利用，缓解废水站处理压力，助力硅太阳能制造企业可持续发展，提高项目经济性，获得环保生存空间。
The utility model discloses an acid-base cleaning water recovery system for the silicon solar energy industry, comprising an acid-base wastewater pH regulating tank, a slow-pulling wastewater pH regulating tank, a sand filtration device, an ultrafiltration device, a first reverse osmosis device, a second reverse osmosis device, a water production tank and a concentrated water tank; the acid-base wastewater pH regulating tank, the sand filtration device, the ultrafiltration device and the first reverse osmosis device are connected in sequence, and a water outlet of the first reverse osmosis device is respectively connected to the water production tank and the concentrated water tank; the slow-pulling wastewater pH regulating tank and the second reverse osmosis device, and a water outlet of the second reverse osmosis device is respectively connected to the water production tank and the first reverse osmosis device; therefore, compared with the prior art wastewater treatment system, the utility model can effectively treat wastewater, reduce wastewater discharge, reduce treatment costs, and the treated water can be recycled, which relieves the treatment pressure of the wastewater station, helps silicon solar energy manufacturing enterprises to achieve sustainable development, improves project economy, and obtains environmentally friendly living space.
Description
Technical Field
The utility model belongs to the technical field of industrial wastewater treatment, and particularly relates to an acid-base cleaning water recovery system in the silicon solar industry.
Background
Along with the continuous development and progress of society, people pay more and more attention to the utilization of resources, solar cells become important points of research, and correspondingly, the photovoltaic industry is also appeared, and at present, a large amount of silicon solar cells with silicon as a substrate are used in a ground photovoltaic system, so that a large amount of wastewater is generated in the production of photovoltaic cells, and a new environmental problem is brought.
The silicon solar cell manufacturing section can generate a large amount of acid cleaning water, alkaline cleaning water and slow-lifting wastewater, three types of wastewater are directly mixed and introduced into a wastewater station for physical and chemical treatment in the prior art, a large amount of electric energy consumption and chemical consumption are required to be input in the wastewater treatment process, the treatment effect is poor, and partially physical and chemical sludge and damaged ions are generated in the treatment process, so that certain influence is caused on the environment.
Disclosure of utility model
In view of the above, the utility model aims to overcome the defects in the prior art, and provides an acid-base cleaning water recovery system in the silicon solar energy industry, which comprises the following technical scheme:
An acid-base cleaning water recovery system in the silicon solar energy industry comprises an acid-base waste water pH regulating tank, a slow-lifting waste water pH regulating tank, a sand filtering device, an ultrafiltration device, a first reverse osmosis device, a second reverse osmosis device, a water producing tank and a concentrated water tank;
The pH adjusting tank, the sand filtering device, the ultrafiltration device and the first reverse osmosis device are sequentially communicated, and the water outlet of the first reverse osmosis device is respectively communicated with the water producing tank and the concentrated water tank;
The water outlet of the second reverse osmosis device is respectively communicated with the water producing pool and the first reverse osmosis device.
In one possible embodiment, a booster pump is arranged between the pH adjusting tank of the acid-base wastewater and the sand filtering device.
In one possible embodiment, the sand filtration device is a sand filtration tank.
In one possible embodiment, the ultrafiltration device comprises an ultrafiltration membrane and an ultrafiltration water producing device, the sand filtration device is in communication with the bottom of the ultrafiltration membrane, the top of the ultrafiltration membrane is in communication with the ultrafiltration water producing device, and the ultrafiltration water producing device is in communication with the first reverse osmosis device.
In one possible embodiment, the second reverse osmosis unit communicates with the first reverse osmosis unit via a ultrafiltration basin.
In one possible embodiment, the first reverse osmosis unit and the second reverse osmosis unit each comprise a reverse osmosis membrane.
In one possible embodiment, the concentrate tank is in communication with a fluorine removal system.
In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:
The utility model respectively collects the workshop acidic cleaning water, the alkaline cleaning water and the slow-lifting wastewater, the acidic cleaning water and the alkaline cleaning water are mixed and then sequentially introduced into an acid-alkali wastewater pH regulating tank, a sand filtering device, an ultrafiltration device and a first reverse osmosis device, after being treated by pH regulation, sand filtering, ultrafiltration and reverse osmosis processes, pure water enters a water producing tank to be collected, concentrated water enters a concentrated water tank to be treated by a defluorination system, the slow-lifting wastewater sequentially enters the water producing tank to be collected by pH regulation and reverse osmosis, the concentrated water enters the first reverse osmosis device to be treated for the second time, and finally, the water quality in the water producing tank meets the requirement of the water quality of the pure water system to realize recycling and cyclic utilization.
In order to make the above objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of the present utility model.
Reference numerals: 1-an acid-base wastewater pH adjusting tank; 2-slowly lifting the pH adjusting tank of the wastewater; 3-sand filtering device; 4-an ultrafiltration device; 5-a first reverse osmosis unit; 6-a second reverse osmosis unit; 7-a water producing pool; 8-a concentrated water tank; 9-a booster pump; 10-ultra-filtering out the water pool.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the application.
In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
Referring to fig. 1, the acid-base cleaning water recovery system in the silicon solar energy industry provided by the embodiment comprises an acid-base waste water pH adjusting tank, a slow-lifting waste water pH adjusting tank, a sand filtering device, an ultrafiltration device, a first reverse osmosis device, a second reverse osmosis device, a water producing tank and a concentrated water tank; the pH adjusting tank, the sand filtering device, the ultrafiltration device and the first reverse osmosis device are sequentially communicated, and the water outlet of the first reverse osmosis device is respectively communicated with the water producing tank and the concentrated water tank; the water outlet of the second reverse osmosis device is respectively communicated with the water producing pool and the first reverse osmosis device.
The ultrafiltration device comprises an ultrafiltration membrane and an ultrafiltration water producing device, the sand filter device is communicated with the bottom of the ultrafiltration membrane, the top of the ultrafiltration membrane is communicated with the ultrafiltration water producing device, and the ultrafiltration water producing device is communicated with the first reverse osmosis device; the second reverse osmosis device is communicated with the first reverse osmosis device through a ultrafiltration water tank; the concentrated water tank is communicated with a fluorine removal system;
A booster pump is arranged between the pH adjusting tank of the acid-base wastewater and the sand filtering device; the sand filtering device is a sand filtering tank; the first reverse osmosis device and the second reverse osmosis device each comprise a reverse osmosis membrane.
In the above embodiment, as shown in fig. 1, the acid-base cleaning water recovery system of the present utility model is a schematic structural diagram, from left to right, an acid-base waste water pH adjusting tank 1 and a slow-pulling waste water pH adjusting tank 1 are respectively provided, wherein the workshop acid cleaning water and the alkaline cleaning water are mixed and introduced into the acid-base waste water pH adjusting tank 1, the slow-pulling waste water is separately collected and introduced into the slow-pulling waste water pH adjusting tank 1, and then pH adjustment is respectively performed, in the process, because the slow-pulling working section belongs to the back-washing process of the acid cleaning water, the quality of the waste water produced by the slow-pulling working section is better than that of the acid cleaning water, therefore, separate collection and separate pH adjustment are required, sand filtration and ultrafiltration processes are omitted, and then the pH in the adjusting tank is adjusted to 6-8 by adding a certain amount of acid or alkali agent in the two pH adjusting tanks, so as to achieve the water quality requirement that the produced water is pure water;
The water quality in the pH regulating tank 1 of acid-base wastewater meets the requirement, a booster pump 9 is arranged on the water pipe, the water is introduced into a sand filtering device 2, the sand filtering device 2 is a quartz sand filtering tank, one or more filtering media are utilized, water with higher turbidity passes through quartz sand with a certain thickness under a certain pressure, so that suspended impurities are effectively removed to clarify the water, the process of mainly filling 4 quartz sand with different particle diameters as filtering substances, the effluent quality of the wastewater can achieve the suspended substances of less than or equal to 3mg/L through the sand filtering process, the turbidity is less than 3NTU, the wastewater after sand filtering is continuously introduced into an ultra-filtering device 4, the ultra-filtering device 4 mainly uses equipment such as an ultra-filtering membrane element and a membrane separation technology which forms a frame, a self-cleaning filter, a backwash pump, a backwash tank, a backwash filter, a filter element and the like, and the like by taking pressure difference as driving force, the average pore diameter is between the reverse osmosis membrane and the microporous filter membrane, bacteria, viruses, colloid, macromolecules and other particles in the water are trapped, and the water and low molecular weight solute permeate the membrane, so that SDI index and particles can fully ensure the water inlet requirement of reverse osmosis, the pollution degree of the reverse osmosis membrane is greatly reduced, the cleaning period of the reverse osmosis membrane is prolonged, the service life of the reverse osmosis membrane is prolonged, the overall operation cost is reduced, the produced water quality can reach SDI less than or equal to 3, the turbidity less than or equal to 0.2NTU through an ultrafiltration process, the ultrafiltered wastewater enters an ultrafiltration water tank 10 and is subsequently introduced into a first reverse osmosis device 5, the equipment mainly used by the first reverse osmosis device 5 is a booster pump, a pipeline mixer, a security filter, a filter element, a high-pressure pump, a reverse osmosis membrane element, a frame, a reverse osmosis cleaning box, a filter element, a medicament adding system and the like, by virtue of the function of selecting the permeable membrane, when the pressure difference is used as the driving force and the pressure added in the system is higher than the osmotic pressure of the solution, water molecules continuously permeate through the membrane, flow into the central tube through the water producing flow channel, and then are conveyed to the water producing pool 7 through the water producing tube, and the produced water is used for pure water raw water and is recycled; impurities in the feed water, such as: ions, organic matters, bacteria, viruses and the like are trapped on the water inlet side of the membrane and are discharged to a concentrated water tank 8 through a concentrated water pipe, concentrated liquid of sand filtration, ultrafiltration and reverse osmosis is collected in the concentrated water tank 8, and a large amount of F ions are contained in the liquid and are required to enter a fluorine removal system of a wastewater station for retreating, so that the wastewater can be discharged after reaching the standard;
And after the water quality in the slow-lifting pH regulating tank meets the requirement, directly introducing the water into the second reverse osmosis device 6, wherein the structure of the second reverse osmosis device 6 is the same as that of the first reverse osmosis device 5, water molecules in the second reverse osmosis device 6 are introduced into the water producing tank 7, generated impurities firstly enter the ultrafiltration water tank 10, then are introduced into the first reverse osmosis device 5 for secondary treatment, the subsequent treatment flow is the same as that of the first reverse osmosis device 5, and finally the slow-lifting wastewater treatment is completed.
While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.
Claims (7)
1. An acid-base cleaning water recovery system in the silicon solar energy industry is characterized in that: comprises an acid-base wastewater pH adjusting tank, a slow-lifting wastewater pH adjusting tank, a sand filtering device, an ultrafiltration device, a first reverse osmosis device, a second reverse osmosis device, a water producing tank and a concentrated water tank;
The pH adjusting tank, the sand filtering device, the ultrafiltration device and the first reverse osmosis device are sequentially communicated, and the water outlet of the first reverse osmosis device is respectively communicated with the water producing tank and the concentrated water tank;
The water outlet of the second reverse osmosis device is respectively communicated with the water producing pool and the first reverse osmosis device.
2. The acid-base cleaning water recovery system for the silicon solar energy industry as claimed in claim 1, wherein: a booster pump is arranged between the pH adjusting tank of the acid-base wastewater and the sand filtering device.
3. The acid-base cleaning water recovery system for the silicon solar energy industry as claimed in claim 1, wherein: the sand filtering device is a sand filtering tank.
4. The acid-base cleaning water recovery system for the silicon solar energy industry as claimed in claim 1, wherein: the ultrafiltration device comprises an ultrafiltration membrane and an ultrafiltration water producing device, the sand filter device is communicated with the bottom of the ultrafiltration membrane, the top of the ultrafiltration membrane is communicated with the ultrafiltration water producing device, and the ultrafiltration water producing device is communicated with the first reverse osmosis device.
5. The acid-base cleaning water recovery system for the silicon solar energy industry as claimed in claim 4, wherein: the second reverse osmosis device is communicated with the first reverse osmosis device through a ultrafiltration water tank.
6. The acid-base cleaning water recovery system for the silicon solar energy industry as claimed in claim 1, wherein: the first reverse osmosis device and the second reverse osmosis device each comprise a reverse osmosis membrane.
7. The acid-base cleaning water recovery system for the silicon solar energy industry as claimed in claim 1, wherein: and the concentrated water tank is communicated with a fluorine removal system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420176534.9U CN221988351U (en) | 2024-01-24 | 2024-01-24 | Acid-base cleaning water recovery system in silicon solar energy industry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420176534.9U CN221988351U (en) | 2024-01-24 | 2024-01-24 | Acid-base cleaning water recovery system in silicon solar energy industry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221988351U true CN221988351U (en) | 2024-11-12 |
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| CN202420176534.9U Active CN221988351U (en) | 2024-01-24 | 2024-01-24 | Acid-base cleaning water recovery system in silicon solar energy industry |
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| CN (1) | CN221988351U (en) |
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- 2024-01-24 CN CN202420176534.9U patent/CN221988351U/en active Active
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