CN220012396U - High-organic matter high-salt-content industrial wastewater treatment system - Google Patents
High-organic matter high-salt-content industrial wastewater treatment system Download PDFInfo
- Publication number
- CN220012396U CN220012396U CN202321375773.9U CN202321375773U CN220012396U CN 220012396 U CN220012396 U CN 220012396U CN 202321375773 U CN202321375773 U CN 202321375773U CN 220012396 U CN220012396 U CN 220012396U
- Authority
- CN
- China
- Prior art keywords
- tank
- water
- industrial wastewater
- organic matter
- enters
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000010842 industrial wastewater Substances 0.000 title claims abstract description 25
- 239000005416 organic matter Substances 0.000 title claims abstract description 16
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 80
- 238000001704 evaporation Methods 0.000 claims abstract description 25
- 230000008020 evaporation Effects 0.000 claims abstract description 25
- 238000004062 sedimentation Methods 0.000 claims abstract description 21
- 230000001112 coagulating effect Effects 0.000 claims abstract description 20
- 238000001728 nano-filtration Methods 0.000 claims abstract description 19
- 238000004064 recycling Methods 0.000 claims abstract description 17
- 238000001035 drying Methods 0.000 claims abstract description 16
- 230000020477 pH reduction Effects 0.000 claims abstract description 14
- 150000003839 salts Chemical class 0.000 claims abstract description 12
- 230000007062 hydrolysis Effects 0.000 claims abstract description 9
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 9
- 238000005342 ion exchange Methods 0.000 claims abstract description 9
- 230000001105 regulatory effect Effects 0.000 claims abstract description 9
- 239000010802 sludge Substances 0.000 claims description 23
- 239000000126 substance Substances 0.000 claims description 15
- 238000005516 engineering process Methods 0.000 claims description 11
- 239000002351 wastewater Substances 0.000 claims description 11
- 230000003301 hydrolyzing effect Effects 0.000 claims description 9
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 239000000243 solution Substances 0.000 claims description 6
- 238000005189 flocculation Methods 0.000 claims description 5
- 230000016615 flocculation Effects 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000002425 crystallisation Methods 0.000 claims description 4
- 230000008025 crystallization Effects 0.000 claims description 4
- 239000010413 mother solution Substances 0.000 claims description 4
- 238000010992 reflux Methods 0.000 claims description 4
- 238000006386 neutralization reaction Methods 0.000 claims description 3
- 239000002957 persistent organic pollutant Substances 0.000 claims description 3
- 238000005728 strengthening Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 10
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 241000894006 Bacteria Species 0.000 description 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 4
- 229940037003 alum Drugs 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000035484 reaction time Effects 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 239000000701 coagulant Substances 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 1
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 239000003729 cation exchange resin Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000008394 flocculating agent Substances 0.000 description 1
- 230000003311 flocculating effect Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model relates to a high organic matter and high salt content industrial wastewater treatment system which comprises a regulating tank, a coagulating sedimentation tank, a hydrolysis acidification tank, a QSYB tank, a middle water tank, an ion exchange system, a nanofiltration system, a collecting tank, a double-effect evaporation tank, a recycling water tank, a centrifuge, a collecting tank, a drying system and a recycling water tank which are connected in sequence. Compared with the prior art, the method has the advantages of simple process, high recycling utilization rate, low energy consumption and zero emission.
Description
Technical Field
The utility model relates to the field of industrial wastewater treatment, in particular to a high-organic-content high-salt industrial wastewater treatment system.
Background
Certain high-organic matter and high-salt wastewater is often generated in the modern industrial production process, and is directly discharged to the outside without treatment, so that water resources are seriously damaged, and a lot of potential resources are wasted.
Along with the continuous update of modern industrial production technology, the components of industrial wastewater are more complex and various, and the problems of low purity of crystalline salt, high energy consumption, high cost and the like exist in the practical engineering application by utilizing the traditional high-salt wastewater zero discharge technology.
Therefore, the development of a processing system with simple process, high resource utilization rate, low energy consumption and zero emission is particularly important.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide the high-organic matter and high-salt industrial wastewater treatment system with simple process, high recycling utilization rate, low energy consumption and zero emission.
The aim of the utility model can be achieved by the following technical scheme:
the utility model provides a high-organic matter high-salt-content industrial wastewater treatment system, which comprises a regulating tank, a coagulating sedimentation tank, a hydrolysis acidification tank, a QSYB tank, a middle water tank, an ion exchange system, a nanofiltration system, a first collecting tank and a double-effect evaporation tank which are sequentially connected, and also comprises a centrifuge, a second collecting tank, a drying system and a second recycling water tank which are sequentially connected;
the drying system utilizes a low-temperature evaporation crystallization technology to finally and completely solidify sodium sulfate salt in incoming water, and the produced water enters a second reuse water tank to be used as factory production water;
the sludge from the coagulating sedimentation tank to the sludge hopper and the residual sludge from the hydrolytic acidification tank and the QSYB tank are discharged to a sludge tank, and are conveyed to a plate-and-frame filter press through a feed pump to be dewatered, and filtered liquid is conveyed to an adjusting tank again.
Preferably, the regulating tank is used for balancing the water quality and the water quantity of the high-organic-content high-salt chemical wastewater, and the high-organic-content high-salt chemical wastewater is lifted to the coagulating sedimentation tank through the water pump.
Preferably, the coagulating sedimentation tank comprises a hardness removal reaction zone, a coagulating zone, a flocculation zone, an inclined plate sedimentation zone and a neutralization zone which are connected in sequence.
Preferably, a strain for improving the biodegradability of the industrial wastewater is put into the hydrolysis acidification tank, and the strain is used for converting the macromolecular substances difficult to biodegrade into the micromolecular substances easy to biodegrade by hydrolyzing insoluble organic substances in the industrial wastewater into soluble organic substances.
Preferably, the bacterial species include hydrolytic bacteria and acidifying bacteria.
Preferably, the QSYB pool removes organic pollutants in water by using a clean water source biological strengthening technology, and the effluent enters a middle pool, is lifted to an ion exchange system for further softening and then enters a nanofiltration system.
Preferably, the outlet water of the nanofiltration system enters a recycling water tank, the concentrated water enters a first collecting tank, and the concentrated water is lifted to a double-effect evaporation tank through a water pump.
Preferably, the effluent of the double-effect evaporation pond enters a first recycling pond, concentrated solution enters a centrifugal machine, sodium sulfate salt is crystallized after repeated reflux evaporation treatment, and final mother solution enters a second collection pond and then enters a drying system through a lifting pump.
Compared with the prior art, the utility model has the following advantages:
according to the utility model, the efficient selective ion separation nanofiltration membrane is organically combined with the double-effect evaporation and concentration drying technology, and the sodium sulfate salt in the wastewater is finally and completely solidified and is recycled as industrial salt, so that the obtained condensate is reused for factory production water, zero emission is realized, and the method has the advantages of simple process, simplicity in operation, low energy consumption and zero emission, high recycling utilization rate, low overall operation cost, stable treatment effect, better water outlet index and the like.
Drawings
FIG. 1 is a schematic diagram of a system architecture of the present utility model;
reference numerals: 1-adjusting tank, 2-coagulating sedimentation tank, 3-hydrolytic acidification tank, 4-QSYB tank, 5-middle water tank, 6-ion exchange system, 7-nanofiltration system, 8-reuse water tank, 9-first collecting tank, 10-double effect evaporation tank, 11-first reuse water tank, 12-centrifuge, 13-second collecting tank, 14-drying system, 15-second reuse water tank, 16-sludge tank and 17-plate-and-frame filter press.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.
Examples
The embodiment provides a high organic matter high salt industrial wastewater treatment system, which comprises a regulating tank 1, a coagulating sedimentation tank 2, a hydrolysis acidification tank 3, a QSYB tank 4, a middle water tank 5, an ion exchange system 6, a nanofiltration system 7, a first collecting tank 9, a double-effect evaporation tank 10 and a first recycling water tank 11 which are sequentially connected, and further comprises a centrifugal machine 12, a second collecting tank 13, a drying system 14 and a second recycling water tank 15 which are sequentially connected.
The regulating tank 1 is used for balancing the water quality and the water quantity of the high-organic-content high-salt chemical wastewater, and the high-organic-content high-salt chemical wastewater is lifted to the coagulating sedimentation tank 2 through a water pump.
The coagulating sedimentation tank 2 comprises a hard removing reaction zone, a coagulating zone, a flocculating zone, an inclined plate sedimentation zone and a neutralization zone which are connected in sequence.
Strains (such as hydrolytic bacteria and acidizing bacteria) for improving the biodegradability of the industrial wastewater are put into the hydrolytic acidification tank 3, and are used for converting the macromolecular substances which are difficult to biodegrade into the micromolecular substances which are easy to biodegrade by hydrolyzing insoluble organic substances in the industrial wastewater into soluble organic substances.
The QSYB pool 4 removes organic pollutants in water by using a clean water source biological strengthening technology, and the water enters the middle pool 5, is lifted to the ion exchange system 6 to be further softened, and then enters the nanofiltration system 7.
The effluent of the nanofiltration system 7 enters a recycling water tank 8, the concentrated water enters a first collecting tank 9, and the concentrated water is lifted to a double-effect evaporation tank 10 by a water pump.
The effluent of the double-effect evaporation pond 10 enters a first recycling pond 11, concentrated solution enters a centrifugal machine 12, sodium sulfate salt is crystallized after repeated reflux evaporation treatment, and final mother solution enters a second collection pond 13 and then enters a drying system 14 through a lifting pump.
The drying system 14 utilizes a low-temperature evaporation crystallization technology to finally completely solidify sodium sulfate salt in the incoming water, and the produced water enters the second reuse water tank 15 to be used as factory production water.
The sludge settled in the coagulating sedimentation tank 2 to the sludge hopper and the residual sludge in the hydrolytic acidification tank 3 and the QSYB tank 4 are discharged to a sludge tank 16, and are conveyed to a plate-and-frame filter press 17 through a feed pump to dewater the sludge, and the filtered liquid is conveyed to the regulating tank 1 again.
In the embodiment, industrial wastewater of a certain chemical plant is used as a treatment object, wherein the COD content is 1000mg/L, the calcium sulfate content is 3000mg/L, and the specific treatment process is as follows:
1) The content of calcium sulfate in the industrial wastewater is 3000mg/L, and the industrial wastewater is lifted to a coagulating sedimentation tank through a water pump after being collected and balanced by an adjusting tank.
2) Adding sodium carbonate into a hard removing reaction area of a coagulating sedimentation tank, stirring by using a stirrer, wherein the rotating speed is 80rpm, the reaction time is 15min, calcium ions generate calcium carbonate sediment, the calcium carbonate sediment further flows into a coagulating area, adding a coagulant PAC, stirring by using the stirrer, the rotating speed is 80rpm, the reaction time is 15min, suspended matters in water and the coagulant are fully contacted and reacted to form alum flowers, the alum flowers further flow into a flocculation area, adding a flocculating agent PAM to assist the flocculation, stirring by using the stirrer, the rotating speed is 40rpm, the reaction time is 30min, the flocculation of the alum flowers is increased through net capturing, the formed large floccules flow through an inclined plate sedimentation area to complete solid-liquid separation, the precipitated sludge is discharged into a mud bucket, the total hardness in supernatant is reduced to 200mg/L, the COD is reduced to 720mg/L, the pH value is adjusted back to 7-9 by adding sulfuric acid, and then conveying the sulfuric acid to a hydrolysis acidification tank by using a lifting pump.
3) After the biodegradability is improved by the hydrolysis acidification tank, wastewater automatically flows into a QSYB tank for biochemical treatment, and the COD of the effluent is reduced to 150mg/L.
4) The effluent of the QSYB pool automatically flows into an intermediate pool, then is lifted to an ion exchange system by a water pump to further soften the water quality, weak acid cation exchange resin is adopted, the operating pressure of a resin tank is 0.6MPa, the operating filtering speed is 25m/h, the backwashing flow rate is 15m/h, and the conductivity of the effluent is 5000 mu S/cm.
5) The effluent of the resin tank enters the nanofiltration system through a nanofiltration water supply pump, and the forced circulation technology of concentrated water is adopted, so that the water inlet stability and recovery rate of the system are fully ensured. The nanofiltration system adopts a primary three-stage treatment process, the conductivity of the inflow water is 5000 mu S/cm, the water yield and the conductivity of the produced water are reduced to 1000 mu S/cm after the treatment of the first two sections of membranes, and the conductivity of the concentrated water is 30000 mu S/cm; concentrated water of the second section nanofiltration device enters a third section to be continuously concentrated, the water conductivity of the third section is 2000 mu S/cm, and the concentrated water conductivity is 45000 mu S/cm. The overall recovery rate of the nanofiltration system is up to 87.62 percent, and the nanofiltration system is directly recycled for production.
6) And the final concentrated solution of the nanofiltration system is conveyed to a double-effect evaporation system through a lifting water pump, and the steam supply amount is 600kg/h of low-pressure saturated steam. Each effect concentrated solution adopts a forced circulation process, sodium sulfate is crystallized through repeated reflux evaporation treatment, the water content is less than or equal to 20%, and the final mother solution enters a drying system for further evaporation; the TDS of the double-effect condensate is less than 1000mg/L and is reused as the production water.
7) The drying system adopts a low-temperature evaporation crystallization technology, deslagging is carried out for 10-15min, feeding is carried out for 2-4min, evaporation is carried out for 60-80min, the pressure of compressed air is above 0.4Mpa, the working vacuum degree is about-90 to-96 kpa, the evaporation temperature is about 37 ℃, and the system is fully-automatic to operate. The low-temperature evaporation drying system effectively separates the salt in the concentrated solution, and finally the salt in the wastewater is completely solidified, so that the moisture content is less than or equal to 10%, and the packaging, transportation and recycling are facilitated. The TDS of condensate of the drying system is less than 1000mg/L, and the condensate is reused for production water, thereby realizing zero emission.
8) The method comprises the steps of setting sludge in a coagulating sedimentation tank to a sludge hopper, discharging residual sludge in a hydrolytic acidification tank and a QSYB tank to a sludge tank, conveying the residual sludge to a plate-and-frame filter press through a feed pump, dehydrating the sludge, arranging a pressure transmitter at a liquid inlet pipeline of the filter press to judge the full state of the inner volume of a filter plate of the filter press through pressure parameters, determining the stop of a filter press pump, and improving the automation degree, wherein the water content of the dehydrated sludge is less than 40%. The filtered liquid is returned to the regulating tank for further treatment.
While the utility model has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.
Claims (7)
1. The high-organic matter high-salt-content industrial wastewater treatment system is characterized by comprising an adjusting tank (1), a coagulating sedimentation tank (2), a hydrolysis acidification tank (3), a QSYB tank (4), an intermediate water tank (5), an ion exchange system (6), a nanofiltration system (7), a first collecting tank (9), a double-effect evaporation tank (10) and a first recycling water tank (11) which are connected in sequence, and further comprising a centrifuge (12), a second collecting tank (13), a drying system (14) and a second recycling water tank (15) which are connected in sequence;
the water discharged from the nanofiltration system (7) enters a recycling water tank (8) arranged, the concentrated water enters a first collecting tank (9), and the concentrated water is lifted to a double-effect evaporation tank (10) through a water pump;
the effluent of the double-effect evaporation pond (10) enters a first recycling pond (11), concentrated solution enters a centrifugal machine (12), sodium sulfate salt is crystallized after repeated reflux evaporation treatment, final mother solution enters a second collection pond (13), and then enters a drying system (14) through a lifting pump.
2. The high organic matter high salt content industrial wastewater treatment system according to claim 1, wherein the regulating tank (1) is used for balancing the water quality and the water quantity of the high organic matter high salt content chemical wastewater, and the high organic matter high salt content chemical wastewater is lifted to the coagulating sedimentation tank (2) through a water pump.
3. The high organic matter high salt content industrial wastewater treatment system according to claim 1, wherein the coagulating sedimentation tank (2) comprises a hardness removal reaction zone, a coagulating zone, a flocculation zone, an inclined plate sedimentation zone and a neutralization zone which are connected in sequence.
4. The high-organic matter high-salt-content industrial wastewater treatment system according to claim 1, wherein a strain for improving the biodegradability of the industrial wastewater is put into the hydrolysis acidification tank (3) and is used for converting a large molecular substance difficult to biodegrade into a small molecular substance easy to biodegrade by hydrolyzing insoluble organic matters in the industrial wastewater into soluble organic matters.
5. The high organic matter and high salt content industrial wastewater treatment system according to claim 1, wherein the QSYB tank (4) removes organic pollutants in water by using a clean water source biological strengthening technology, and the effluent enters an intermediate water tank (5) and then enters a nanofiltration system (7) after being lifted to an ion exchange system (6) for further softening.
6. The high-organic matter high-salt-content industrial wastewater treatment system according to claim 1, wherein the drying system (14) utilizes a low-temperature evaporation crystallization technology to completely solidify sodium sulfate salt in incoming water, and the produced water enters a second reuse water tank (15) as factory production water.
7. The high organic matter and high salt content industrial wastewater treatment system according to claim 1, wherein the sludge settled to the sludge hopper in the coagulating sedimentation tank (2) and the residual sludge in the hydrolysis acidification tank (3) and the QSYB tank (4) are discharged to a sludge tank (16) which is arranged, and are conveyed to a plate-and-frame filter press (17) which is arranged through a feed pump to carry out sludge dewatering, and filtered liquid is conveyed to the regulating tank (1) again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321375773.9U CN220012396U (en) | 2023-05-31 | 2023-05-31 | High-organic matter high-salt-content industrial wastewater treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321375773.9U CN220012396U (en) | 2023-05-31 | 2023-05-31 | High-organic matter high-salt-content industrial wastewater treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220012396U true CN220012396U (en) | 2023-11-14 |
Family
ID=88680894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321375773.9U Active CN220012396U (en) | 2023-05-31 | 2023-05-31 | High-organic matter high-salt-content industrial wastewater treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220012396U (en) |
-
2023
- 2023-05-31 CN CN202321375773.9U patent/CN220012396U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104276709B (en) | Special equipment of coal chemical industry concentrated brine zero discharge technique | |
| CN101481190B (en) | Process for treating saponification wastewater by chlorohydrination | |
| CN110357334A (en) | Coal water slurry gasification waste water divides salt crystallization zero-discharge treatment system and method | |
| CN209276303U (en) | Coal water slurry gasification waste water divides salt to crystallize zero-discharge treatment system | |
| CN102863096B (en) | Method for recovering waste water generated in production of starch sugar | |
| CN112919717A (en) | Intelligent desalting system for mine water | |
| CN104909494A (en) | Process for impurity removal and purification of industrial high-concentration brine and special equipment of process | |
| CN103159372B (en) | Treatment method for wheat straw pulping black liquor | |
| CN112321020A (en) | Efficient pretreatment system and method for circulating water sewage | |
| CN101870639A (en) | Method for producing kelp mannitol with low energy consumption | |
| CN220012396U (en) | High-organic matter high-salt-content industrial wastewater treatment system | |
| CN105036393A (en) | Treating method and apparatus for high-hardness high-salinity waste water | |
| CN216918911U (en) | Treatment system for zero discharge and recycling of lithium iron phosphate production wastewater | |
| CN106477663A (en) | A kind of method that nano-silicon gel purification processes gallic acid production wastewater | |
| CN108483710B (en) | Comprehensive seawater utilization method and system | |
| CN114873857B (en) | System and method for recycling and standard-reaching discharge of carbon dodecyl alcohol ester wastewater | |
| CN207891195U (en) | Power plant desulfurization wastewater zero discharge treatment device | |
| CN216472723U (en) | Steel mill pickling waste water resourceful treatment device | |
| CN216073506U (en) | Anaerobic sludge resourceful treatment system | |
| CN216513289U (en) | System for resourceful coprocessing waste water | |
| CN110877941B (en) | Ammonia distillation waste liquid recycling system and method by ammonia-alkali method | |
| CN204803133U (en) | Professional equipment of high strong brine edulcoration of industry purification technology | |
| CN105481136A (en) | Comprehensive treatment method for recycling waste calcium water and waste acid obtained through algin production | |
| CN204265590U (en) | For reclaiming the system of soda acid from glass production sewage | |
| CN111138020A (en) | Seawater resource utilization system and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |