CN115872555A - Energy-saving universal high-salinity wastewater treatment system and application method thereof - Google Patents
Energy-saving universal high-salinity wastewater treatment system and application method thereof Download PDFInfo
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- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 230000003647 oxidation Effects 0.000 claims description 44
- 238000007254 oxidation reaction Methods 0.000 claims description 44
- 238000005189 flocculation Methods 0.000 claims description 38
- 230000016615 flocculation Effects 0.000 claims description 38
- 239000002351 wastewater Substances 0.000 claims description 33
- 238000001704 evaporation Methods 0.000 claims description 29
- 230000008020 evaporation Effects 0.000 claims description 29
- 238000001179 sorption measurement Methods 0.000 claims description 26
- 239000011347 resin Substances 0.000 claims description 22
- 229920005989 resin Polymers 0.000 claims description 22
- 239000008394 flocculating agent Substances 0.000 claims description 18
- 238000005342 ion exchange Methods 0.000 claims description 12
- 239000007800 oxidant agent Substances 0.000 claims description 9
- 230000001590 oxidative effect Effects 0.000 claims description 9
- 150000003839 salts Chemical class 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 8
- 239000010802 sludge Substances 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 7
- 239000007789 gas Substances 0.000 claims description 7
- 239000008235 industrial water Substances 0.000 claims description 6
- 239000006228 supernatant Substances 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 4
- 238000004064 recycling Methods 0.000 claims description 3
- 239000002912 waste gas Substances 0.000 claims description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 2
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 2
- 229920002472 Starch Polymers 0.000 claims description 2
- 229910010272 inorganic material Inorganic materials 0.000 claims description 2
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 2
- 229920002401 polyacrylamide Polymers 0.000 claims description 2
- 239000000047 product Substances 0.000 claims description 2
- WPZSAUFQHYFIPG-UHFFFAOYSA-N propanethioamide Chemical compound CCC(N)=S WPZSAUFQHYFIPG-UHFFFAOYSA-N 0.000 claims description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
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- 239000008107 starch Substances 0.000 claims description 2
- 230000003311 flocculating effect Effects 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 230000002708 enhancing effect Effects 0.000 abstract description 2
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 8
- 230000006872 improvement Effects 0.000 description 8
- 229910001425 magnesium ion Inorganic materials 0.000 description 8
- 229910001424 calcium ion Inorganic materials 0.000 description 7
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 6
- 239000011575 calcium Substances 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
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- 238000004458 analytical method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 238000004939 coking Methods 0.000 description 2
- 239000002440 industrial waste Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
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- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- 239000002156 adsorbate Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses an energy-saving universal high-salinity wastewater treatment system and an application method thereof. The invention has the advantages of wide applicable water quality range, high treatment efficiency, low energy consumption, low cost and the like, and has great significance for enhancing the utilization capacity of water resources in China and ensuring the safety of the water resources.
Description
Technical Field
The invention relates to the technical field of industrial wastewater, in particular to an energy-saving universal high-salinity wastewater treatment system and an application method thereof.
Background
The high-salt wastewater has the characteristics of high salt content, high COD (chemical oxygen demand) and low calorific value, the technologies such as multi-effect evaporation and MVR (mechanical vapor recompression) are commonly adopted for treating the high-salt wastewater at present, but the high-salt wastewater contains a large amount of organic matters and calcium and magnesium ions, so that equipment is easily scaled and blocked in actual treatment, the treatment efficiency is greatly reduced, the treatment difficulty is increased, and the cost is increased.
The multi-process coupling method can not only realize the effective removal of various targets, but also greatly reduce the treatment cost. However, most of the existing coupling processes only aim at wastewater with certain characteristics, and the treatment effect on high-salinity wastewater with complex water quality and large fluctuation is not obvious. Therefore, a high-salinity wastewater treatment system with strong universality and high treatment efficiency is developed, the high-salinity wastewater is treated cleanly and efficiently, and the system has great significance for promoting water resource conservation in China and guaranteeing water safety.
Disclosure of Invention
An energy-saving universal high-salinity wastewater treatment system and an application method thereof are disclosed, wherein high-temperature industrial waste gas is used as a heat source, and through multi-system coupling linkage, the problems of single applicable water quality, easy scaling and blockage of equipment, low efficiency, high energy consumption, high cost and the like in the traditional high-salinity wastewater treatment technology are solved, and the system and the method have great significance for enhancing the utilization capacity of water resources in China and ensuring the safety of the water resources.
The energy-saving universal high-salinity wastewater treatment system comprises a storage tank, a flocculation tank, an advanced oxidation tank, an adsorption tower, a resin ion exchange column, a collection tank and a triple-effect evaporation matching device, wherein an inlet pipeline of the storage tank is communicated with raw high-salinity wastewater, and an outlet pipeline of the storage tank is communicated with the flocculation tank; the utility model discloses a sewage treatment device, including flocculation basin, advanced oxidation jar, adsorption tower, tail gas condenser, water production storage tank, flocculation basin entrance point pipeline and flocculating agent intercommunication, exit end pipeline and advanced oxidation jar intercommunication, the entrance point pipeline and the oxidant intercommunication of advanced oxidation jar, the exit end pipeline and the adsorption tower intercommunication of advanced oxidation jar, the exit end pipeline and the collecting vessel intercommunication of resin ion exchange column, the supporting device of triple effect evaporation comprises triple effect multistage evaporator, tail gas condenser, product water storage tank, the exit end pipeline and the triple effect multistage evaporator intercommunication of collecting vessel, the discharge pipeline of storage tank, flocculation basin and advanced oxidation jar is connected with the sludge thickening pond jointly, the inside agitator that is provided with of flocculation basin, advanced oxidation jar, all be provided with motorised valve, flowmeter on the entrance point of storage tank, flocculation basin and advanced oxidation jar, the linkage cooperation through motorised valve and flowmeter controls waste water flow and medicament addition, realizes the accurate matching of medicament and waste water index. In the technical scheme, the flocculation tank is used for removing most of suspended substances and a small amount of COD; the advanced oxidation tank is used for removing most of COD; the adsorption tower and the resin ion exchange column are used for removing calcium and magnesium ions.
As a further improvement of the scheme, the flocculating agent added into the flocculation tank is an organic-inorganic compound flocculating agent, the organic flocculating agent comprises polyacrylamide and a starch-based flocculating agent, and the inorganic flocculating agent comprises polyaluminium chloride, polyaluminium ferric chloride and polyaluminium ferric silicate. The adding combination and proportion can be determined according to different suspended matters in the wastewater.
As a further improvement of the scheme, a lime-sodium carbonate solution is added into the adsorption tower to enhance the adsorption effect on calcium and magnesium ions.
As a further improvement of the scheme, the resin ion exchange column adopts the thiopropionamide modified hypercrosslinked chloromethylated resin, the adsorption removal rates of calcium ions and magnesium ions can respectively reach 400-420 mg/g and 330-350 mg/g, and more adsorption sites can be provided for adsorbates.
As a further improvement of the scheme, the flow meter on the inlet end pipeline of the flocculation tank communicated with the flocculating agent is a solid flow meter.
As a further improvement of the scheme, the oxidant is H 2 O 2 、FeSO 4 One or more of them. The combination and proportion can be adjusted according to different COD contents in the wastewater.
As a further improvement of the scheme, centrifugal pumps are arranged on the pipelines at the outlet ends of the storage tank, the flocculation tank, the advanced oxidation tank and the collection tank.
As a further improvement of the scheme, electric valves are arranged on pipelines connected among the adsorption tower, the resin ion exchange column and the collecting tank and on a pipeline at the outlet end of the collecting tank.
As a further improvement of the scheme, the evaporation heat source of the triple-effect evaporation matching device is industrial high-temperature waste gas, no extra energy consumption is needed, and energy-saving treatment of the high-salinity wastewater is realized.
An application method of an energy-saving universal high-salinity wastewater treatment system comprises the following steps:
s1, storing high-salinity wastewater raw water in a storage tank, starting a centrifugal pump to pump wastewater into a flocculation tank, starting a stirrer, and adding a flocculating agent into the flocculation tank;
s2, starting a centrifugal pump to send the supernatant in the flocculation tank into a high-grade oxidation tank, starting a stirrer, and adding an oxidant into the high-grade oxidation tank;
s3, starting a centrifugal pump to send supernatant in the advanced oxidation tank into an adsorption tower, feeding the reacted liquid into a resin exchange column, and feeding the reacted liquid in the resin exchange column into a collection tank;
s4, starting the centrifugal pump to send the liquid in the collecting tank into a three-effect evaporation matching device for evaporation and concentration;
s5, further separating, purifying or incinerating the mixed salt concentrated in the step S4 according to the practical value of the mixed salt, and recycling condensed water generated in the evaporation process to industrial water;
and S6, after the reaction is finished, opening outlets of the storage tank, the flocculation tank and the advanced oxidation tank to discharge the sludge into a sludge concentration tank.
The invention has the beneficial effects that:
compared with the prior art, the energy-saving universal high-salinity wastewater treatment system and the application method thereof provided by the invention have the advantages that raw high-salinity wastewater is placed in the storage tank, wastewater is pumped into the flocculation tank through the centrifugal pump, a flocculating agent is added into the flocculation tank, and the stirrer is started to stir at a constant speed; starting a centrifugal pump to send the supernatant into a high-grade oxidation tank, adding an oxidant into the high-grade oxidation tank, and starting a stirrer to stir at a constant speed; starting a centrifugal pump to send the supernatant into an adsorption tower, and enabling the liquid after reaction to flow into a resin exchange column; and the liquid after reaction in the resin exchange column enters a collecting tank and enters a triple-effect evaporation matching device for evaporation and concentration under the action of a centrifugal pump. And (3) further separating and purifying or incinerating the concentrated mixed salt according to the practical value, recycling condensed water generated in the evaporation process to industrial water, opening discharge pipelines of the storage tank, the flocculation tank and the advanced oxidation tank after the reaction is finished, and discharging sludge into a sludge concentration tank.
Compared with the prior art, the invention has the following beneficial effects:
(1) The invention can flexibly adjust the adding type and proportion of the medicament according to different water qualities, and has universal applicability to high-salinity wastewater;
(2) According to the invention, through the combination of the adsorption tower and the resin exchange column, the calcium and magnesium ions are efficiently removed, the risk of scaling and blockage in subsequent evaporation can be effectively reduced, the service life of equipment is prolonged, and the treatment efficiency is improved;
(3) The invention utilizes industrial high-temperature waste gas as a heat source, and simultaneously, the produced water can be reused as industrial water, thereby having the characteristics of energy saving and consumption reduction, and really realizing the treatment of wastes with processes of wastes against one another and changing wastes into valuables.
Drawings
The following detailed description of embodiments of the invention is provided in conjunction with the appended drawings, in which:
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
As shown in fig. 1, the system comprises a raw water cache unit, a coagulation unit, a high-level oxidation unit, an adsorption and hardness removal unit, a wastewater collection unit and a triple-effect evaporation matching device 7, wherein the raw water cache unit consists of a storage tank 1, an inlet pipeline of the storage tank 1 is communicated with high-salinity wastewater raw water, and an outlet pipeline is communicated with a flocculation tank 2 of the coagulation unit; an inlet end pipeline of the flocculation tank 2 is communicated with a flocculating agent, an outlet end pipeline is communicated with an advanced oxidation tank 3 of an advanced oxidation unit, an inlet end pipeline of the advanced oxidation tank 3 is communicated with an oxidant, an adsorption hardness removal unit comprises an adsorption tower 4 and a resin ion exchange column 5, an outlet end pipeline of the advanced oxidation tank 3 is communicated with the adsorption tower 4, an outlet end pipeline of the resin ion exchange column 5 is communicated with a collection tank 6 of a wastewater collection unit, a triple-effect evaporation matching device 7 consists of a triple-effect multistage evaporator, a tail gas condenser 8 and a water production storage tank 9, an outlet end pipeline of the collection tank 6 is communicated with the triple-effect multistage evaporator, discharge pipelines of the storage tank 1, the flocculation tank 2 and the advanced oxidation tank 3 are commonly connected with a sludge concentration tank 10, an agitator 11 is arranged inside the flocculation tank 2 and the advanced oxidation tank 3, electric valves 12 and flow meters 13 are arranged on outlet end pipelines of the storage tank 1, the flocculation tank 2 and the advanced oxidation tank 3, electric valves 14 are arranged on outlet end pipelines of the adsorption tank 4, the resin ion exchange column 6, and a small amount of suspended matters are arranged on the adsorption tank 6, and the collection tank 6, and an electric valve 12 and a small amount of the collection tank 6 are connected with the flocculation tank; the advanced oxidation unit is used for removing most of COD; the adsorption hardness removal unit is used for removing calcium and magnesium ions; the triple-effect evaporation matching device 7 is used for concentrating and reducing waste water, an evaporation heat source of the triple-effect evaporation matching device 7 is high-temperature industrial waste gas, and produced water is reused as industrial water. Specifically, the triple-effect multistage evaporator receives the wastewater sent from the outlet end pipeline of the collecting tank 6, and the mixed salt generated after three-stage evaporation and concentration is further separated, purified or incinerated according to the practical value of the mixed salt; the generated tail end steam is discharged to a tail gas condenser 8, is cooled under the action of external cooling water and then is stored in a water production storage tank 9 to be used as industrial water.
The advanced oxidation tank 3 adopts a Fenton oxidation method, and the added oxidant is H 2 O 2 、FeSO 4 And the combination and the proportion can be adjusted according to the COD content in the wastewater.
Example 1:
is brown from waste water of certain coking plant in Taiyuan. The raw water quality is shown in table 1.
TABLE 1 quality of raw wastewater from certain coking plant
| Item | SS(mg/L) | COD(mg/L) | Ca 2+ (mg/L) | Mg 2+ (mg/L) |
| Quality of raw water | 2561 | 9731 | 996 | 3800 |
High-salinity wastewaterRaw water is stored in the storage tank 1, and the outlet end pipeline of the storage tank 1 is operated as follows: the centrifugal pump 14 is opened, the opening of the electric valve 12 is adjusted to make the reading of the flowmeter 13 be 1m 3 And h, starting the stirrer 11 inside the flocculation tank 2, opening a flocculating agent adding port of the flocculation tank 2, and performing the following operations on an inlet pipeline of the flocculation tank 2: adjusting an electric valve 12 to enable the reading number of a flowmeter 13 to be 220g/h, and adding a flocculating agent (the mass ratio of polyaluminium chloride to polyacrylamide is 10;
the outlet end pipeline of the flocculation tank 2 is operated as follows: the centrifugal pump 14 is opened, the opening of the electric valve 12 is adjusted to make the reading of the flowmeter 13 be 1m 3 And h, starting the stirrer 11 in the flocculation tank 2, opening an oxidant adding port of the advanced oxidation tank 3, and performing the following operations on the inlet pipeline of the advanced oxidation tank 3: the electric valve 12 is adjusted to make the reading of the flowmeter 13 be 31.2m 3 Adding an oxidant (the mass ratio of hydrogen peroxide to ferrous sulfate is 1;
the outlet end pipeline of the advanced oxidation tank 3 is operated as follows: the centrifugal pump 14 is opened, and the opening of the electric valve 12 is adjusted so that the reading of the flowmeter 13 is 1m 3 And h, the wastewater sequentially passes through the adsorption tower 4 and the resin exchange column, the treated wastewater enters the collection tank 6, and is sent into the triple-effect evaporation matching device 7 for evaporation concentration through a centrifugal pump 14 on an outlet end pipeline of the collection tank 6.
According to the treatment method of the embodiment, the turbidity removal rate reaches 96.1%, the COD removal rate reaches 89%, and the calcium and magnesium ion removal rates reach 97.6% and 95%, respectively. The water quality analysis in the collection tank 6 is shown in table 2.
Table 2 example 1 water quality index in collection tank
| Item | SS(mg/L) | COD(mg/L) | Ca 2+ (mg/L) | Mg 2+ (mg/L) |
| Water yielding results | 99.8 | 1070 | 24 | 190 |
| Removal rate | 96.1％ | 89％ | 97.6％ | 95％ |
Example 2:
the wastewater from a certain solid wastewater treatment station in Taiyuan is light green, contains a large amount of black suspended matters, has high viscosity, and the quality of the raw water is shown in Table 3.
TABLE 3 quality of raw water from solid waste treatment station
| Item | SS(mg/L) | COD(mg/L) | Ca 2+ (mg/L) | Mg 2+ (mg/L) |
| Quality of raw water | 5013 | 6215 | 15120 | 5400 |
High salt waste water raw water is stored in the storage tank 1, and the outlet end pipeline of the storage tank 1 is operated as follows: the centrifugal pump 14 is opened, the opening of the electric valve 12 is adjusted to make the reading of the flowmeter 13 be 1m 3 H, starting the stirrer 11 in the flocculation tank 2, opening a flocculant adding port of the flocculation tank 2, and performing the following operations on an inlet pipeline of the flocculation tank 2: adjusting the electric valve 12 to enable the reading number of the flow meter 13 to be 366.3g/h, adding a flocculating agent (the mass ratio of the polymeric ferric aluminum silicate to the modified starch is 13;
the outlet end pipeline of the flocculation tank 2 is operated as follows: the centrifugal pump 14 is opened, the opening of the electric valve 12 is adjusted to make the indication number of the flowmeter 13 be 1m 3 H, starting the stirrer 11 in the flocculation tank 2, opening an oxidant adding port of the advanced oxidation tank 3, and performing the following operations on an inlet pipeline of the advanced oxidation tank 3: the electric valve 12 is adjusted to make the display of the flowmeter 13 be 18.8m 3 Adding an oxidant (the mass ratio of hydrogen peroxide to ferrous sulfate is 1;
the outlet end pipeline of the advanced oxidation tank 3 is operated as follows: the centrifugal pump 14 is opened, and the opening of the electric valve 12 is adjusted so that the reading of the flowmeter 13 is 1m 3 And h, the wastewater sequentially passes through the adsorption tower 4 and the resin exchange column, the treated wastewater enters the collection tank 6, and the wastewater is sent into the triple-effect evaporation matching device 7 for evaporation and concentration through the centrifugal pump 14 on the outlet end pipeline of the collection tank 6.
According to the treatment method of the embodiment, the turbidity removal rate reaches 97.4%, the COD removal rate reaches 87%, and the calcium and magnesium ion removal rates reach 91% and 93.6%, respectively. The water quality analysis in the collection tank 6 is shown in table 4.
Table 4 example 2 water quality index in collection tank
| Item | SS(mg/L) | COD(mg/L) | Ca 2+ (mg/L) | Mg 2+ (mg/L) |
| Water outlet result | 130 | 808 | 1360 | 345 |
| Removal rate of | 97.4％ | 87％ | 91％ | 93.6％ |
The above embodiments are not limited to the technical solutions of the embodiments themselves, and the embodiments may be combined with each other into a new embodiment. The above embodiments are only for illustrating the technical solution of the present invention and are not limited thereto, and any modifications or equivalent substitutions which do not depart from the spirit and scope of the present invention should be covered within the technical solution of the present invention.
Claims (10)
1. The utility model provides an energy-conserving general type high salt effluent disposal system which characterized in that: the system comprises a storage tank (1), a flocculation tank (2), an advanced oxidation tank (3), an adsorption tower (4), a resin ion exchange column (5), a collection tank (6) and a triple-effect evaporation matching device (7), wherein an inlet end pipeline of the storage tank (1) is communicated with high-salinity wastewater raw water, and an outlet end pipeline is communicated with the flocculation tank (2); flocculation basin (2) entrance point pipeline and flocculating agent intercommunication, exit end pipeline and advanced oxidation tank (3) intercommunication, the entrance point pipeline and the oxidant intercommunication of advanced oxidation tank (3), the exit end pipeline and adsorption tower (4) intercommunication of advanced oxidation tank (3), the exit end pipeline and the collection tank (6) intercommunication of resin ion exchange post (5), the supporting device of triple effect evaporation (7) comprise triple effect multistage evaporator, tail gas condenser (8), product water storage tank (9), the exit end pipeline and the triple effect multistage evaporator intercommunication of collection tank (6), the discharge pipeline of storage tank (1), flocculation basin (2) and advanced oxidation tank (3) is connected with mud pond (10) jointly, flocculation concentration pond (2), advanced oxidation tank (3) inside are provided with agitator (11), all be provided with motorised valve (12), flowmeter (13) on the entrance point, the exit end pipeline of storage tank (1), flocculation basin (2) and advanced oxidation tank (3).
2. The energy-saving universal high-salinity wastewater treatment system according to claim 1, characterized in that: the flocculating agent added into the flocculating tank (2) is an organic-inorganic compound flocculating agent, the organic flocculating agent comprises polyacrylamide and a starch-based flocculating agent, and the inorganic flocculating agent comprises polyaluminum chloride, polyaluminum ferric chloride and polyaluminum ferric silicate.
3. The energy-saving universal high-salinity wastewater treatment system according to claim 1, characterized in that: and a lime-sodium carbonate solution is added into the adsorption tower (4).
4. The energy-saving universal high-salinity wastewater treatment system according to claim 1, characterized in that: the resin ion exchange column (5) adopts the hyper-crosslinked chloromethylated resin modified by the thiopropionamide.
5. The energy-saving universal high-salinity wastewater treatment system according to claim 1, characterized in that: and a flowmeter (13) on an inlet end pipeline of the flocculation tank (2) communicated with the flocculating agent is a solid flowmeter.
6. The energy-saving universal high-salinity wastewater treatment system according to claim 1, characterized in that: the oxidant is H 2 O 2 、FeSO 4 One or more of them.
7. The energy-saving universal high-salinity wastewater treatment system according to claim 1, characterized in that: centrifugal pumps (14) are arranged on outlet end pipelines of the storage tank (1), the flocculation tank (2), the advanced oxidation tank (3) and the collection tank (6).
8. The energy-saving universal high-salinity wastewater treatment system according to claim 1, characterized in that: and electrically operated valves (12) are arranged on pipelines connected among the adsorption tower (4), the resin ion exchange column (5) and the collecting tank (6) and on an outlet end pipeline of the collecting tank (6).
9. The energy-saving universal high-salinity wastewater treatment system according to claim 1, characterized in that: the evaporation heat source of the triple-effect evaporation matching device (7) is industrial high-temperature waste gas.
10. An application method of the energy-saving universal high-salinity wastewater treatment system as claimed in any one of claims 1 to 9, is characterized in that: the method comprises the following steps:
s1, storing high-salinity wastewater raw water in a storage tank (1), and carrying out the following operations on an outlet end pipeline of the storage tank (1): starting a centrifugal pump (14) to pump the wastewater into the flocculation tank (2), starting a stirrer (11) in the flocculation tank (2), and adding a flocculating agent into the flocculation tank (2);
s2, performing the following operations on an outlet end pipeline of the flocculation tank (2): starting a centrifugal pump (14) to send the supernatant in the flocculation tank (2) into the advanced oxidation tank (3), starting a stirrer (11) in the advanced oxidation tank (3), and adding an oxidant into the advanced oxidation tank (3);
s3, carrying out the following operations on an outlet end pipeline of the advanced oxidation tank (3): starting a centrifugal pump (14) to send supernatant in the advanced oxidation tank (3) into an adsorption tower (4), feeding the reacted liquid into a resin exchange column, and feeding the reacted liquid into a collection tank (6);
s4, starting a centrifugal pump (14) on an outlet end pipeline of the collecting tank (6) to send liquid in the collecting tank (6) into a three-effect evaporation matching device (7) for evaporation and concentration;
s5, further separating, purifying or incinerating the mixed salt concentrated in the step S4 according to the practical value of the mixed salt, and recycling condensed water generated in the evaporation process to industrial water;
s6, after the reaction is finished, opening outlets of the storage tank (1), the flocculation tank (2) and the advanced oxidation tank (3) to discharge the sludge into a sludge concentration tank (10).
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