CN113526769A - System suitable for desulfurization waste water thermal method concentration solid-liquid separation and seed crystal quenching and tempering - Google Patents
System suitable for desulfurization waste water thermal method concentration solid-liquid separation and seed crystal quenching and tempering Download PDFInfo
- Publication number
- CN113526769A CN113526769A CN202110915768.1A CN202110915768A CN113526769A CN 113526769 A CN113526769 A CN 113526769A CN 202110915768 A CN202110915768 A CN 202110915768A CN 113526769 A CN113526769 A CN 113526769A
- Authority
- CN
- China
- Prior art keywords
- seed crystal
- tank
- outlet
- communicated
- solid
- 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.)
- Pending
Links
- 239000013078 crystal Substances 0.000 title claims abstract description 91
- 238000000034 method Methods 0.000 title claims abstract description 70
- 238000000926 separation method Methods 0.000 title claims abstract description 54
- 239000002351 wastewater Substances 0.000 title claims abstract description 51
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 48
- 230000023556 desulfurization Effects 0.000 title claims abstract description 48
- 239000007788 liquid Substances 0.000 title claims abstract description 22
- 238000005496 tempering Methods 0.000 title claims abstract description 10
- 238000010791 quenching Methods 0.000 title description 3
- 230000000171 quenching effect Effects 0.000 title description 3
- 239000010802 sludge Substances 0.000 claims abstract description 38
- 238000003825 pressing Methods 0.000 claims abstract description 14
- 230000003750 conditioning effect Effects 0.000 claims description 9
- 229910052602 gypsum Inorganic materials 0.000 description 10
- 239000010440 gypsum Substances 0.000 description 10
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 8
- 239000007787 solid Substances 0.000 description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- 238000001704 evaporation Methods 0.000 description 5
- 230000008020 evaporation Effects 0.000 description 5
- 239000003546 flue gas Substances 0.000 description 5
- 239000002002 slurry Substances 0.000 description 5
- 230000005484 gravity Effects 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000011552 falling film Substances 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 159000000003 magnesium salts Chemical class 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Removal Of Specific Substances (AREA)
Abstract
The invention discloses a system suitable for thermal-method concentration solid-liquid separation and seed crystal tempering of desulfurization wastewater, which comprises a thermal-method concentration device, a seed crystal tank, a sludge pump, a seed crystal discharge valve, a filter pressing device and a separation tank, wherein the thermal-method concentration device is connected with the seed crystal tank through a pipeline; the bottom outlet of the thermal method concentration device is communicated with the inlet at the top of the separation tank, the thermal method concentration device is provided with a crystal seed circulation interface, the outlet at the side surface of the separation tank is communicated with the inlet of the crystal seed tank, the outlet at the bottom of the separation tank is communicated with the inlet of the sludge pump, the crystal seed outlet at the side surface of the crystal seed tank is communicated with the crystal seed circulation interface on the thermal method concentration device, the sludge outlet at the bottom of the crystal seed tank is communicated with the inlet of the sludge pump, and the outlet of the sludge pump is communicated with the filter pressing device.
Description
Technical Field
The invention belongs to the technical field of thermal concentration of desulfurization wastewater, and relates to a system suitable for thermal concentration solid-liquid separation and seed crystal tempering of desulfurization wastewater.
Background
At present, the most applied flue gas desulfurization process in a thermal power plant is limestone-gypsum wet desulfurization, in the operation process, in order to ensure the quality of gypsum and maintain the material balance of a system, desulfurization wastewater needs to be discharged periodically, the quality of the generated desulfurization wastewater is complex, the fluctuation of the water quality and the water quantity is large, and the flue gas desulfurization process has the characteristics of high hardness, high salinity, high turbidity, strong corrosivity and the like, is large in treatment difficulty and extremely strong in environmental pollution.
The traditional process adopts a three-header-clarification mode to treat the desulfurization wastewater to reach the standard and discharge, but in recent years, along with increasingly strict environmental protection policies, the desulfurization wastewater is required to realize zero discharge. When the amount of the desulfurization wastewater is large, the concentration and decrement of the desulfurization wastewater must be carried out to ensure the normal output of subsequent units. Compared with the thermal method concentration and the membrane method concentration which are widely applied in the market, the main thermal method concentration process comprises vertical falling film evaporation, flue gas waste heat flash evaporation, negative-pressure low-temperature double-effect evaporation concentration, low-temperature flue gas waste heat evaporation concentration and the like, the thermal method concentration has lower requirements on the quality of desulfurization wastewater, only simple pretreatment is needed, the highest salt content of the wastewater can be concentrated to more than 20%, the operation reliability is high, the automation degree is high, the operation cost and the maintenance cost are lower, but the defects of equipment scaling risk, uncontrollable concentration multiplying power, complex quality of concentrated slurry and the like exist. When the desulfurization wastewater is concentrated by a thermal method, the desulfurization wastewater is circularly concentrated in a concentration tank, and when the concentration rate is higher, the desulfurization wastewater is concentrated into thick slurry, the thick slurry is deposited in a conventional thermal method concentration device tank, the hardening phenomenon is easy to occur, and pipeline blockage and impeller abrasion of rotating equipment such as a pump and the like are easy to cause in the process of conveying the concentrated slurry to a subsequent unit. In addition, the salts in the desulfurization wastewater mainly exist in the forms of sulfate, chloride and sulfite, carbonate and dust, and the scaling and operation risks of equipment can be further increased in the concentration process.
At present, in the existing thermal method concentration process, a waste water pre-precipitation device is required to be arranged at the front end to carry out preliminary solid-liquid separation in engineering operation, large particles in desulfurization waste water are removed, the solid content of the waste water is reduced, the operation risk of a concentration system is reduced, supernatant enters a concentration tank which is arranged independently, and the purpose of concentration is achieved by utilizing low-temperature flue gas, hot water or hot steam for heat exchange, and system equipment is complex. However, most power plants have limited site space and great difficulty in implementation of reconstruction projects, and a desulfurization wastewater thermal method concentration system which is simple and stable in operation is urgently needed.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a system suitable for hot-method concentration solid-liquid separation and crystal seed conditioning of desulfurization wastewater, which has the characteristics of simple structure, small occupied space and stable operation.
In order to achieve the aim, the system for thermally concentrating, solid-liquid separating and seed crystal tempering the desulfurization wastewater comprises a thermal method concentration device, a separation tank, a seed crystal tank, a sludge pump, a seed crystal discharge valve and a filter pressing device;
the bottom outlet of the thermal method concentration device is communicated with the inlet at the top of the separation tank, the thermal method concentration device is provided with a seed crystal circulation interface, the outlet at the side surface of the separation tank is communicated with the inlet of the seed crystal tank, the outlet at the bottom of the separation tank is communicated with the inlet of the sludge pump, the seed crystal outlet at the side surface of the seed crystal tank is communicated with the seed crystal circulation interface on the thermal method concentration device, the sludge outlet at the bottom of the seed crystal tank is communicated with the inlet of the sludge pump, and the outlet of the sludge pump is communicated with the filter pressing device.
The seed crystal outlet on the side surface of the seed crystal tank is communicated with a seed crystal circulating interface on the thermal method concentration device through a seed crystal circulating pump.
The thermal method concentration device is provided with a first densimeter.
The separating tank is divided into an upper cylinder and a bottom cone, a seed crystal outlet is arranged on the side wall of the upper cylinder, and a sludge outlet is arranged at the bottom of the bottom cone.
The seed crystal outlet is provided with a seed crystal discharge valve.
A sludge discharge valve is arranged at the sludge outlet.
And a second densimeter is arranged on the side wall of the separation tank.
A mud level meter is arranged in the seed crystal tank.
The invention has the following beneficial effects:
the system for thermal-method concentration solid-liquid separation and seed crystal tempering of desulfurization wastewater provided by the invention is specifically operated, the desulfurization wastewater can be subjected to sludge pre-separation without entering a pre-settling tank, only continuously circulates in a thermal-method concentration device, the solid content is gradually increased until the desulfurization wastewater is crystallized and then is settled and discharged to a separation tank under the action of gravity, the solid-liquid separation of the desulfurization wastewater can be synchronously realized in the desulfurization wastewater concentration process, a front-end pretreatment unit is saved, the solid-liquid separation of the desulfurization wastewater is realized by utilizing the action of gravity, chemicals are not required to be added in the operation process, and the quality of the desulfurization gypsum is ensured. In addition, the desulfurization gypsum is used as the crystal seed, so that the supersaturation degree of calcium sulfate in the desulfurization wastewater can be reduced, the solid content in the conventional thermal method concentration device is controlled by tempering the crystal seed, the stable operation of the system is ensured, the equipment scaling is avoided, other chemical agents are not required to be added into the system, the structure is simple, the operation is stable, and the operation cost is saved.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Wherein, 1 is a separation tank, 2 is a seed crystal tank, 3 is a seed crystal circulating pump, 4 is a sludge pump, 5 is a seed crystal discharge valve, 6 is a sludge discharge valve, 7 is a filter pressing device, 8 is a second densimeter, 9 is a first densimeter, and 10 is a thermal method concentration device.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments, and are not intended to limit the scope of the present disclosure. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
There is shown in the drawings a schematic block diagram of a disclosed embodiment in accordance with the invention. The figures are not drawn to scale, wherein certain details are exaggerated and possibly omitted for clarity of presentation. The shapes of various regions, layers and their relative sizes and positional relationships shown in the drawings are merely exemplary, and deviations may occur in practice due to manufacturing tolerances or technical limitations, and a person skilled in the art may additionally design regions/layers having different shapes, sizes, relative positions, according to actual needs.
Referring to fig. 1, the system for thermal-process concentration, solid-liquid separation and seed crystal conditioning of desulfurization wastewater comprises a thermal-process concentration device 10, a separation tank 1, a seed crystal tank 2, a seed crystal circulating pump 3, a sludge pump 4, a seed crystal discharge valve 5, a sludge discharge valve 6, a filter pressing device 7 and the separation tank 1, wherein an outlet at the bottom of the thermal-process concentration device 10 is communicated with an inlet at the top of the separation tank 1, a seed crystal circulating interface is arranged on the thermal-process concentration device 10, an outlet at the side of the separation tank 1 is communicated with an inlet of the seed crystal tank 2, an outlet at the bottom of the separation tank 1 is communicated with an inlet of the sludge pump 4, a seed crystal outlet at the side of the seed crystal tank 2 is communicated with the thermal-process concentration device 10 through the seed crystal circulating pump 3, a sludge outlet at the bottom of the seed crystal tank 2 is communicated with an inlet of the sludge pump 4, and an outlet of the sludge pump 4 is communicated with the filter pressing device 7.
The thermal thickener 10 is provided with a first densitometer 9.
The separating tank 1 is divided into an upper cylinder and a bottom cone, a seed crystal outlet is arranged on the side wall of the upper cylinder, and a seed crystal discharge valve 5 is arranged at the seed crystal outlet; the bottom of the bottom cone is provided with a sludge outlet, the sludge outlet is provided with a sludge discharge valve 6, and the side wall of the separation tank 1 is provided with a second densimeter 8.
The specific working process of the invention is as follows:
FGD bottom discharge 10m3The desulfurization wastewater enters the thermal method concentration device 10 for evaporation concentration after being cached in the desulfurization wastewater collection box, along with the continuous circulation of the desulfurization wastewater, the solid content of the solution at the bottom of the thermal method concentration device 10 is gradually increased, the solid content in the wastewater is gradually increased until crystallization under the action of gravity and circulation, the generated crystallization is gypsum, other crystal salts (magnesium salt, calcium salt and the like), fly ash and the like, the solid-containing pollutants are agglomerated and gravity-settled to the separation tank 1 for separation, wherein the separated upper clear liquid continuously circulates in the thermal method concentration device 10, the desulfurization wastewater is continuously supplemented into the thermal method concentration device 10, and the solid-liquid separation of the desulfurization wastewater is realized while the concentration is carried out.
The solid-containing sludge in the desulfurization wastewater is buffered in a separation tank 1, and the separation tank 1 is provided with a second densimeter8, when the density of the concentrated solution reaches the designed value of 1300kg/m3When the process is carried out, the sludge discharge valve 6 is automatically opened, the sludge in the separation tank 1 is conveyed to the filter pressing device 7 through the sludge pump 4 for filter pressing, the main component of a filter cake is gypsum which can be treated with gypsum in a power plant, and the filtrate returns to the thermal method concentration device 10 for continuous circulation treatment.
In the operation of the thermal method concentration system, the desulfurization wastewater is continuously concentrated to be crystallized and is settled in the separation tank 1. In order to ensure the salt balance of the system, a crystal seed discharge valve 5 is periodically opened, and a part of gypsum is discharged from the separation tank 1 to be used as crystal seeds to enter the crystal seed tank 2. When the first densimeter 9 does not reach the preset threshold 1050kg/m3During the process, gypsum in the seed crystal tank 2 is supplemented into the thermal method concentration device 10 through the seed crystal circulating pump 3, so that seed crystals are uniformly distributed in slurry, the crystal surface which is the same as the dirt and the affinity for the dirt are utilized, the supersaturation degree of calcium sulfate in the wastewater is reduced, the calcium sulfate in the wastewater can directionally grow on the surface of the gypsum seed crystals in the concentration process, the calcium sulfate cannot be deposited on the inner wall of the pipeline or the thermal method concentration device 10, the anti-scaling purpose is achieved, meanwhile, large-particle crystals are subjected to the action of gravity and centrifugal force again, fall into the separation tank 1, and are discharged into the seed crystal tank 2 or are conveyed into the filter pressing device 7 through the sludge pump 4. Carry out the seed crystal quenching and tempering through the waste water density in the monitoring hot method enrichment facility 10, be provided with the agitator in the seed crystal jar 2, prevent the seed crystal deposit, seed crystal jar 2 detects the settlement condition of magma through the mud level meter to in time discharge to filter pressing device 7.
By utilizing the method, the crystals can fall into the separation tank 1 and are finally treated in the filter pressing device 7 in the thermal method concentration process without pre-precipitation treatment, so that the solid-liquid separation of the desulfurization wastewater can be realized. Meanwhile, the seed crystal tempering is controlled according to the density of the solution in the thermal method concentration device 10 and the separating tank 1, the stability of the system is ensured, meanwhile, the equipment scaling is avoided, the system operation risk is reduced, no medicament is added to the system, the system is not influenced by the form of a concentrated heat source, and the method is suitable for different thermal method concentration processes.
Claims (8)
1. A system suitable for thermal-method concentration solid-liquid separation and seed crystal tempering of desulfurization wastewater is characterized by comprising a thermal-method concentration device (10), a separation tank (1), a seed crystal tank (2), a sludge pump (4), a seed crystal discharge valve (5) and a filter pressing device (7);
the bottom outlet of the thermal method concentration device (10) is communicated with the inlet at the top of the separation tank (1), a seed crystal circulating interface is arranged on the thermal method concentration device (10), the outlet on the side surface of the separation tank (1) is communicated with the inlet of the seed crystal tank (2), the outlet on the bottom of the separation tank (1) is communicated with the inlet of the sludge pump (4), the seed crystal outlet on the side surface of the seed crystal tank (2) is communicated with the seed crystal circulating interface on the thermal method concentration device (10), the sludge outlet on the bottom of the seed crystal tank (2) is communicated with the inlet of the sludge pump (4), and the outlet of the sludge pump (4) is communicated with the filter pressing device (7).
2. The system for hot concentration, solid-liquid separation and seed crystal conditioning of desulfurization wastewater according to claim 1, characterized in that the seed crystal outlet on the side of the seed crystal tank (2) is communicated with the seed crystal circulation interface on the hot concentration device (10) through the seed crystal circulation pump (3).
3. The system for solid-liquid separation and seed crystal conditioning in hot concentration of desulfurization wastewater according to claim 1, characterized in that the hot concentration device (10) is provided with a first densimeter (9).
4. The system for hot-method solid-liquid separation and seed crystal conditioning of desulfurization wastewater according to claim 1, wherein the separation tank (1) is divided into an upper cylinder and a bottom cone, the sidewall of the upper cylinder is provided with a seed crystal outlet, and the bottom of the bottom cone is provided with a sludge outlet.
5. The system for hot concentration solid-liquid separation and seed crystal conditioning of desulfurization waste water according to claim 4, characterized in that the seed crystal outlet of the separation tank (1) is equipped with a seed crystal discharge valve (5).
6. The system for hot-method solid-liquid separation and seed crystal conditioning of desulfurization wastewater according to claim 4, characterized in that a sludge discharge valve (6) is arranged at the sludge outlet of the separation tank (1).
7. The system for solid-liquid separation and seed crystal conditioning for hot concentration of desulfurization wastewater according to claim 1, characterized in that the side wall of the separation tank (1) is provided with a second densimeter (8).
8. The system for thermally concentrating, solid-liquid separating and seed crystal conditioning desulfurized wastewater according to claim 1, wherein a mud level meter is arranged in the seed crystal tank (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110915768.1A CN113526769A (en) | 2021-08-10 | 2021-08-10 | System suitable for desulfurization waste water thermal method concentration solid-liquid separation and seed crystal quenching and tempering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110915768.1A CN113526769A (en) | 2021-08-10 | 2021-08-10 | System suitable for desulfurization waste water thermal method concentration solid-liquid separation and seed crystal quenching and tempering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113526769A true CN113526769A (en) | 2021-10-22 |
Family
ID=78091448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110915768.1A Pending CN113526769A (en) | 2021-08-10 | 2021-08-10 | System suitable for desulfurization waste water thermal method concentration solid-liquid separation and seed crystal quenching and tempering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113526769A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11123312A (en) * | 1997-10-21 | 1999-05-11 | Mitsubishi Heavy Ind Ltd | Treatment method for flue gas desulfurization waste water |
| CN208440312U (en) * | 2018-06-07 | 2019-01-29 | 北京国能中电节能环保技术股份有限公司 | A kind of processing system of desulfurization wastewater |
| CN110183025A (en) * | 2019-06-28 | 2019-08-30 | 中国科学院理化技术研究所 | Desulfurization wastewater recycling processing method and system |
| CN210419601U (en) * | 2019-06-28 | 2020-04-28 | 中国科学院理化技术研究所 | Desulfurization waste water resourceful treatment system |
-
2021
- 2021-08-10 CN CN202110915768.1A patent/CN113526769A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11123312A (en) * | 1997-10-21 | 1999-05-11 | Mitsubishi Heavy Ind Ltd | Treatment method for flue gas desulfurization waste water |
| CN208440312U (en) * | 2018-06-07 | 2019-01-29 | 北京国能中电节能环保技术股份有限公司 | A kind of processing system of desulfurization wastewater |
| CN110183025A (en) * | 2019-06-28 | 2019-08-30 | 中国科学院理化技术研究所 | Desulfurization wastewater recycling processing method and system |
| CN210419601U (en) * | 2019-06-28 | 2020-04-28 | 中国科学院理化技术研究所 | Desulfurization waste water resourceful treatment system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104150669B (en) | Heat-engine plant desulfurized waste water purification system and purifying method | |
| CN106630084B (en) | Method and system for treating high-fluorine and high-hardness wastewater by two-stage two-phase fluidized bed self-crystallization | |
| CN107758962A (en) | A kind of system of the preparing magnesium sulfate from desulfurization wastewater | |
| CN209276303U (en) | Coal water slurry gasification waste water divides salt to crystallize zero-discharge treatment system | |
| CN108033621A (en) | Desulfurization wastewater Zero discharging system and method | |
| CN104925986A (en) | Near-zero discharge treatment system for pickling waste liquid and washing wastewater in steel industry and process thereof | |
| CN204874164U (en) | Zero release processing system of desulfurization waste water | |
| CN107285489A (en) | A kind of device and method of desulfurization wastewater pretreatment | |
| CN211367297U (en) | Desulfurization waste water zero release processing system | |
| CN107055885B (en) | Desulfurization wastewater recycling system of coal-fired power plant and working method | |
| CN106115942A (en) | A kind of reverse osmosis concentrated water induction crystallization sofening treatment system | |
| CN113526769A (en) | System suitable for desulfurization waste water thermal method concentration solid-liquid separation and seed crystal quenching and tempering | |
| CN209259867U (en) | Water treatment system with high salt | |
| CN111039453A (en) | System and method for treating wastewater containing high-concentration calcium sulfate | |
| CN110963623A (en) | Novel system for treating industrial wastewater by using bypass low-temperature flue gas | |
| CN206901925U (en) | The device of novel desulphurization wastewater treatment | |
| CN109502871A (en) | A kind of high-salinity wastewater zero-emission and divide salt resource utilization device | |
| CN210796080U (en) | Desulfurization waste water concentration device | |
| CN109095483A (en) | A kind of system and its application method of oxalate precipitation method recycling power plant desulfurization wastewater calcium and magnesium | |
| CN111099756B (en) | Solid reducing process and system for wastewater for limestone-gypsum wet desulphurization | |
| CN212246284U (en) | Concentrated decrement processing system of high magnesium desulfurization waste water | |
| CN211998906U (en) | Desulfurization waste water flue concentration treatment device | |
| CN108483709A (en) | High-concentration ammonia nitrogen sewage treatment equipment and its processing method | |
| CN208757290U (en) | The supply equipment of demister in desulphurization system, desulphurization system | |
| CN210974166U (en) | Slurry treatment device and flue gas limestone wet desulphurization device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211022 |
|
| RJ01 | Rejection of invention patent application after publication |