CN114314985A - All-weather solar high-salinity mine water desalination system - Google Patents
All-weather solar high-salinity mine water desalination system Download PDFInfo
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- CN114314985A CN114314985A CN202111593260.0A CN202111593260A CN114314985A CN 114314985 A CN114314985 A CN 114314985A CN 202111593260 A CN202111593260 A CN 202111593260A CN 114314985 A CN114314985 A CN 114314985A
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- mine water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 72
- 238000010612 desalination reaction Methods 0.000 title claims abstract description 44
- 238000002242 deionisation method Methods 0.000 claims abstract description 31
- 238000005338 heat storage Methods 0.000 claims abstract description 29
- 238000000746 purification Methods 0.000 claims abstract description 15
- 238000010248 power generation Methods 0.000 claims abstract description 11
- 239000003990 capacitor Substances 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 8
- 150000001450 anions Chemical class 0.000 claims description 6
- 239000011358 absorbing material Substances 0.000 claims description 4
- 150000001768 cations Chemical class 0.000 claims description 4
- 239000003575 carbonaceous material Substances 0.000 claims description 3
- 238000011068 loading method Methods 0.000 claims description 3
- 239000004065 semiconductor Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 abstract description 11
- 238000011033 desalting Methods 0.000 abstract description 7
- 238000005286 illumination Methods 0.000 abstract description 4
- 239000012528 membrane Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000031700 light absorption Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000004821 distillation Methods 0.000 description 4
- 239000007772 electrode material Substances 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000909 electrodialysis Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 238000005342 ion exchange Methods 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000008213 purified water Substances 0.000 description 2
- 238000001223 reverse osmosis Methods 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 239000012267 brine Substances 0.000 description 1
- 238000009388 chemical precipitation Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005686 electrostatic field Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 239000003014 ion exchange membrane Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000001471 micro-filtration Methods 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The invention provides an all-weather solar high-salt mine water desalination system which comprises a solar condenser, a heat storage pool, a thermoelectric generation module, a desalination mechanism and a water purification chamber, wherein the solar condenser is connected with the heat storage pool, and the output end of the heat storage pool is connected with the thermoelectric generation module; the desalting mechanism comprises a pre-filtering device and a capacitive deionization device, the pre-filtering device and the capacitive deionization device are respectively arranged at the front end and the rear end of the thermoelectric generation module, the front end of the pre-filtering device is connected with mine water, and the rear end of the capacitive deionization device is connected with a water purification chamber; by adopting the all-weather solar high-salt mine water desalination system provided by the invention, the temperature difference between the heat storage pool and the mine water is utilized for power generation, solar energy can be stored, the driving capacitor is used for deionizing to desalinate the mine water, the limitation of solar energy illumination is avoided, all-weather work is realized, and the mine water desalination efficiency is greatly improved.
Description
Technical Field
The invention relates to a high-salt mine water desalination device, in particular to an all-weather solar high-salt mine water desalination system.
Background
The northwest mine area has dry climate and large surface evaporation capacity, but underground deep mine water resources are quite abundant, and generally about two tons of mine water are extracted every one ton of coal is mined. Valuable mine water resources are particularly important for local resident life, industrial and agricultural development and ecological protection. However, most mine water has very high salinity, even more than 5%, and cannot be directly used at all. The direct discharge into rivers or shallow groundwater leads to salinization, and the direct discharge to the ground quickly forms salt lakes or salt lands due to large evaporation capacity, thus seriously damaging the originally fragile ecological environment of the local area. Therefore, the deep well has to be drilled again to reinject the underground. Not only a large amount of energy is wasted, but also valuable water and mineral resources are wasted wastefully. Therefore, the method is of great importance for desalting the mine water with high salinity, removing salt and obtaining precious fresh water and mineral resources. At present, the high-salt mine water desalination technology mainly comprises methods such as a chemical precipitation method, an ion exchange method, electrodialysis, reverse osmosis, membrane distillation and the like. However, the methods have certain limitations, such as large energy consumption, low desalination efficiency, large difficulty in subsequent pollution treatment and the like.
The capacitive deionization is to apply an electrostatic field between two electrodes to form an electrochemical double layer, and to force ions to move to the electrodes with opposite charges by using a small voltage, thereby achieving the purposes of wastewater purification and seawater desalination. Compared with the traditional desalination technologies such as ion exchange and reverse osmosis, capacitive deionization has the advantages of low cost, low energy consumption, environmental friendliness, high efficiency and the like.
The invention patent with the publication number of CN 107381923A introduces a seawater desalination treatment device and a method thereof based on membrane capacitance deionization and membrane distillation, which combines the technologies of microfiltration, ultrafiltration, membrane capacitance deionization and membrane distillation, and solves the problems of unstable membrane capacitance deionized water outlet and high energy consumption of membrane distillation. The invention patent with the publication number of CN 106379970A introduces a layered metal oxide electrode material for desalting bitter water by capacitive deionization, and the desalting capacity of the asymmetric desalting mechanism can reach 13-14.5mg/g when the adsorption and desorption voltages are both 1.0V. The invention patent with publication number CN 105753114A introduces an electro-adsorption desalination technology method capable of continuous desalination, the device combines electrodialysis multi-chamber and membrane capacitance deionization, through the cooperative operation of ion exchange membrane and electrode material electro-adsorption, the water quality in each chamber is respectively purified or concentrated, and continuous desalination based on a single desalination mechanism is realized. The produced desalted water and the enriched brine can be collected simultaneously; based on the working principle of the invention, the device can further improve the desalination treatment capacity on the basis of the electro-adsorption saturation of the electrode material.
However, the above prior art solution still has the following disadvantages: the energy consumption of the capacitive deionization technology is high, and solar evaporation and desalination strongly depend on sunlight, so that the working time is limited.
Disclosure of Invention
In view of the above, the invention provides an all-weather solar high-salt mine water desalination system, which can store solar energy by utilizing the temperature difference of a heat storage pool and mine water for power generation, drive a capacitor to deionize to desalinate the mine water, is not limited by the illumination of the solar energy, and realizes all-weather work, thereby greatly improving the desalination efficiency of the mine water.
The invention provides an all-weather solar high-salt mine water desalination system which comprises a solar condenser, a heat storage pool, a temperature difference power generation module, a desalination mechanism and a water purification chamber, wherein the solar condenser is connected with the heat storage pool, and the output end of the heat storage pool is connected with the temperature difference power generation module; the desalination mechanism comprises a front-mounted filter device and a capacitor deionization device, the front-mounted filter device and the capacitor deionization device are respectively arranged at the front end and the rear end of the thermoelectric generation module, the front end of the front-mounted filter device is connected with mine water, and the rear end of the capacitor deionization device is connected with the water purification chamber.
Further, a light absorption material is arranged on the heat storage pool.
Further, the light absorption material is metal nano-ions, a carbon material or a semiconductor material.
Further, the loading amount of the light absorption material is 0.1-10g/m2。
Further, an electrode for adsorbing metal cations and metal anions is arranged in the capacitive deionization device.
Further, the metal anion includes Cl-And SO4 2-。
The invention provides an all-weather solar high-salt mine water desalination system which mainly comprises a solar condenser, a heat storage pool, a temperature difference power generation module, a desalination mechanism and a water purification chamber, wherein the solar condenser is connected with the heat storage pool to provide solar energy for a storage battery and store heat energy, the output end of the heat storage pool is connected with the temperature difference power generation module, and the temperature difference power generation module generates power by using the temperature difference between the heat storage pool and mine water; the desalting mechanism comprises a pre-filtering device and a capacitive deionization device, the pre-filtering device and the capacitive deionization device are respectively arranged at the front end and the rear end of the thermoelectric generation module, the front end of the pre-filtering device is connected with mine water, the mine water is filtered firstly, and then the capacitive deionization device is used for filtering, so that the purpose of purifying the water is achieved; the rear end of the capacitive deionization device is connected with a water purification chamber, and purified water enters the water purification chamber for storage; in general, solar energy can be stored by utilizing the temperature difference of the heat storage pool and the mine water for power generation, the mine water is desalinated by driving the capacitor to remove ions, the solar energy cannot be limited by illumination, all-weather work is realized, and the mine water desalination efficiency is greatly improved.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a working schematic diagram of an all-weather solar high-salinity mine water desalination system provided by an embodiment of the invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The first embodiment is as follows:
referring to fig. 1, an all-weather solar high-salt mine water desalination system provided by an embodiment of the invention is shown in the figure, and comprises a solar concentrator, a heat storage tank, a thermoelectric generation module, a desalination mechanism and a water purification chamber, wherein the solar concentrator is connected with the heat storage tank, and the output end of the heat storage tank is connected with the thermoelectric generation module; the desalination mechanism comprises a front-mounted filter device and a capacitive deionization device, the front-mounted filter device and the capacitive deionization device are respectively arranged at the front end and the rear end of the thermoelectric generation module, the front end of the front-mounted filter device is connected with mine water, and the rear end of the capacitive deionization device is connected with a water purification chamber.
The all-weather solar high-salt mine water desalination system mainly comprises a solar condenser, a heat storage pool, a thermoelectric generation module, a desalination mechanism and a water purification chamber, wherein the solar condenser is connected with the heat storage pool to provide solar energy for a storage battery and store heat energy, the output end of the heat storage pool is connected with the thermoelectric generation module, and the thermoelectric generation module generates power by utilizing the temperature difference between the heat storage pool and mine water; the desalting mechanism comprises a pre-filtering device and a capacitive deionization device, the pre-filtering device and the capacitive deionization device are respectively arranged at the front end and the rear end of the thermoelectric generation module, the front end of the pre-filtering device is connected with mine water, the mine water is filtered firstly, and then the capacitive deionization device is used for filtering, so that the purpose of purifying the water is achieved; the rear end of the capacitive deionization device is connected with a water purification chamber, and purified water enters the water purification chamber for storage; in general, solar energy can be stored by utilizing the temperature difference of the heat storage pool and the mine water for power generation, the mine water is desalinated by driving the capacitor to remove ions, the solar energy cannot be limited by illumination, all-weather work is realized, and the mine water desalination efficiency is greatly improved.
Example two:
referring to fig. 1, an all-weather solar high-salinity mine water desalination system provided by a second embodiment of the present invention is shown in the drawing, and on the basis of the above embodiment, the present embodiment further provides the following technical solutions as improvements: a light absorption material is arranged on the heat storage pool; the light absorption material is metal nano-ions, a carbon material or a semiconductor material; the loading amount of the light absorbing material is 0.1-10g/m2。
Through the above further improvement, the present embodiment has the following advantages compared with the prior art: the light absorption effect can be further improved, and the heat storage effect of the heat storage pool is improved.
Example three:
referring to fig. 1, an all-weather solar high-salinity mine water desalination system provided by a third embodiment of the present invention is shown in the figure, and on the basis of the above embodiment, the present embodiment further provides the following technical solutions as improvements: the capacitive deionization device is internally provided with electrodes for adsorbing metal cations and metal anions;the metal anion comprises Cl-And SO4 2-。
Through the above further improvement, the present embodiment has the following advantages compared with the prior art: the capacitance deionization device can utilize temperature difference to generate electricity to drive metal cations and Cl in mine water-And SO4 2-The negative ions are adsorbed on the electrode material to achieve the purpose of purifying water.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (6)
1. An all-weather solar high-salt mine water desalination system is characterized by comprising a solar condenser, a heat storage pool, a temperature difference power generation module, a desalination mechanism and a water purification chamber, wherein the solar condenser is connected with the heat storage pool, and the output end of the heat storage pool is connected with the temperature difference power generation module; the desalination mechanism comprises a front-mounted filter device and a capacitor deionization device, the front-mounted filter device and the capacitor deionization device are respectively arranged at the front end and the rear end of the thermoelectric generation module, the front end of the front-mounted filter device is connected with mine water, and the rear end of the capacitor deionization device is connected with the water purification chamber.
2. The all-weather solar high-salt mine water desalination system of claim 1, wherein the heat storage pool is provided with light absorbing material.
3. The all-weather solar high-salt mine water desalination system of claim 2, wherein the light absorbing material is metal nano-ions, carbon material or semiconductor material.
4. The all-weather solar high-salt mine water desalination system of claim 3, wherein the loading of light absorbing material is 0.1-10g/m 2.
5. The all-weather solar high-salt mine water desalination system as claimed in claim 4, wherein electrodes for adsorbing metal cations and metal anions are arranged in the capacitive deionization device.
6. The all-weather solar high-salt mine water desalination system of claim 5, wherein the metal anions comprise Cl-And SO4 2-。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111593260.0A CN114314985A (en) | 2021-12-23 | 2021-12-23 | All-weather solar high-salinity mine water desalination system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111593260.0A CN114314985A (en) | 2021-12-23 | 2021-12-23 | All-weather solar high-salinity mine water desalination system |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201656859U (en) * | 2010-05-14 | 2010-11-24 | 重庆大学 | Combined type solar generator |
| CN102751917A (en) * | 2012-08-01 | 2012-10-24 | 重庆大学 | Solar energy temperature difference power generation system based on liquid metal thermal switch |
| CN111718052A (en) * | 2020-06-28 | 2020-09-29 | 山东胜伟盐碱地科技有限公司 | Brackish water desalination method and device |
| CN112661242A (en) * | 2020-12-21 | 2021-04-16 | 华中科技大学 | Flowing electrode capacitance deionization system |
-
2021
- 2021-12-23 CN CN202111593260.0A patent/CN114314985A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201656859U (en) * | 2010-05-14 | 2010-11-24 | 重庆大学 | Combined type solar generator |
| CN102751917A (en) * | 2012-08-01 | 2012-10-24 | 重庆大学 | Solar energy temperature difference power generation system based on liquid metal thermal switch |
| CN111718052A (en) * | 2020-06-28 | 2020-09-29 | 山东胜伟盐碱地科技有限公司 | Brackish water desalination method and device |
| CN112661242A (en) * | 2020-12-21 | 2021-04-16 | 华中科技大学 | Flowing electrode capacitance deionization system |
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