CN111410251A - Industrial wastewater treatment system based on low-temperature mass transfer concentration technology - Google Patents
Industrial wastewater treatment system based on low-temperature mass transfer concentration technology Download PDFInfo
- Publication number
- CN111410251A CN111410251A CN202010211095.7A CN202010211095A CN111410251A CN 111410251 A CN111410251 A CN 111410251A CN 202010211095 A CN202010211095 A CN 202010211095A CN 111410251 A CN111410251 A CN 111410251A
- Authority
- CN
- China
- Prior art keywords
- mass transfer
- low
- wastewater treatment
- treatment system
- water
- 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
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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The invention provides an industrial wastewater treatment system based on a low-temperature mass transfer concentration technology, which adopts a closed design, wherein waste liquid is subjected to low-temperature mass transfer and carrier gas extraction in a device, a mass transfer unit can transfer 80% of water in the waste liquid to the air under the driving of low-temperature mass transfer power by utilizing the partial pressure difference between the surface of a solution and water vapor in circulating air, and a moisture separation unit separates out condensed water from saturated humid air at an evaporation section of a heat pump; the water and the waste liquid are concentrated and separated, and no waste discharge is generated except the separated waste water concentrated liquid in the operation process.
Description
Technical Field
The invention relates to the field of industrial wastewater treatment, in particular to an industrial wastewater treatment system based on a low-temperature mass transfer concentration technology.
Background
At present, industrial production in various fields can generate a large amount of waste water, such as electroplating waste water, pesticide waste water, acid-base waste water, heavy metal waste water, printing and dyeing waste water and the like. In recent years, with the arousal and improvement of environmental protection consciousness in China, the treatment and discharge requirements of industrial wastewater are increasingly strict. The thirteen-five project takes environmental protection as a working target, the 263 special action of Jiangsu province requires reducing the total coal consumption and the lagging industrial capacity, and the industrial wastewater discharge problem is also one of the key points. The current related technologies for wastewater treatment include biochemical treatment and reverse osmosis membrane separation. Electrochemical methods, photocatalytic techniques, advanced oxidation techniques, forward osmosis techniques, and traditional evaporation techniques, among others. The above-mentioned wastewater treatment techniques or treatment ranges are small, or the treatment effects are unstable, or other pollutions are generated, or the economic cost is high. In recent years, the concentration and separation treatment of industrial wastewater to facilitate water recycling is the best choice for industrial enterprises by comprehensively meeting the zero discharge requirements of the enterprises and the economic burden of wastewater treatment of the enterprises in various places. The method integrates the wastewater treatment capacity, the economic cost and the treatment range, and the low-temperature mass transfer and carrier gas extraction technology becomes the most advantageous wastewater treatment method in comparison.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides an industrial wastewater treatment system based on a low-temperature mass transfer concentration technology.
In order to achieve the purpose, the invention adopts the following technical scheme:
an industrial wastewater treatment system based on a low-temperature mass transfer concentration technology comprises a solution tank, a water pump, a condenser, a mass transfer unit, a moisture separation unit, a fan and a compressor; the system comprises a solution tank, a water pump, a condenser, a mass transfer unit, a moisture analysis unit, a fan, a compressor, a pipeline and a condenser, wherein the solution tank is used for containing a wastewater stock solution, an outlet of the solution tank is connected with the water pump, an outlet of the water pump is connected to the condenser, the condenser is connected with the mass transfer unit, an outlet of the mass transfer unit is connected to the moisture analysis unit, the moisture analysis unit comprises a condensate water outlet and a circulating air outlet, circulating air conveyed by the circulating air outlet is conveyed to the mass transfer unit through the fan, and the moisture analysis unit is connected.
Preferably, the treatment system utilizes a heat pump as a driving heat source and a cold source, an evaporator is arranged in the moisture separating unit, and the evaporator, the compressor and the condenser jointly form a heat pump circulation pipeline.
Preferably, the solution tank, the water pump, the condenser and the mass transfer unit together constitute a waste aqueous solution line.
Preferably, the mass transfer unit, the moisture analysis unit and the fan together form a circulating air pipeline.
Preferably, the closed circulating air in the circulating air pipeline is an extraction medium, and the mass transfer unit transfers 80% of water in the waste liquid to the air under the driving of low-temperature mass transfer power by utilizing the partial pressure difference between the surface of the waste liquid and water vapor in the circulating air.
Preferably, the condensation heat of the heat pump in the heat pump circulating pipeline heats the waste liquid to 50-60 ℃.
Preferably, the processing system is a full-automatic control system, and comprises human-computer interaction, real-time monitoring, emergency braking, system fault alarming and diagnosing functions and remote monitoring.
Compared with the prior art, the invention has the beneficial effects that:
the industrial wastewater treatment system based on the low-temperature mass transfer concentration technology adopts a closed design, the waste liquid is subjected to low-temperature mass transfer and carrier gas extraction in the device, the mass transfer unit can transfer 80% of water in the waste liquid to the air under the driving of low-temperature mass transfer power by utilizing the partial pressure difference between the surface of the solution and water vapor in circulating air, and the moisture separation unit separates out condensed water from saturated humid air at the evaporation section of the heat pump; the water and the waste liquid are concentrated and separated, and no waste discharge is generated except the separated waste water concentrated liquid in the operation process.
The invention adopts the heat pump as a driving heat source and a cold source, the cold and heat energy in the system device is balanced, the energy utilization efficiency is high, and the mature heat pump technology can be operated fully automatically, thereby realizing unattended operation.
The invention is energy-saving and environment-friendly, has no waste gas emission, no secondary pollution and environmental protection, and the condensed water obtained by distillation can be directly recycled.
Compared with other wastewater treatment technologies, the invention has relatively simple structure, has lower or no water softening requirement in the wastewater pretreatment step, can reach the hardness of 5000 of inlet water, has no limitation on organic matters in the wastewater, and can meet more types of wastewater treatment requirements.
Drawings
FIG. 1 is a schematic diagram of the principle structure of an industrial wastewater treatment system based on a low-temperature mass transfer concentration technology.
Detailed Description
In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.
Referring to fig. 1, the invention provides an industrial wastewater treatment system based on a low-temperature mass transfer concentration technology, which comprises a solution tank 1, a water pump 2, a condenser 3, a mass transfer unit 4, a moisture separation unit 5, a fan 6 and a compressor 7; the solution tank 1 is used for containing a wastewater stock solution, an outlet of the solution tank 1 is connected with the water pump 2, an outlet of the water pump 2 is connected to the condenser 3, the condenser 3 is connected with the mass transfer unit 4, an outlet of the mass transfer unit 4 is connected to the moisture analysis unit 5, the moisture analysis unit 5 comprises a condensate water outlet 51 and a circulating air outlet 52, circulating air conveyed by the circulating air outlet 52 is conveyed to the mass transfer unit 4 through the fan 6, and the moisture analysis unit 5 is connected with the condenser 3 through the compressor 7 and a pipeline.
Preferably, the solution tank 1, the water pump 2, the condenser 3 and the mass transfer unit 4 together constitute a waste water solution line 10. The method comprises the following steps that a waste water stock solution is conveyed to a solution tank 1, the waste water stock solution in the solution tank 1 is pumped by a water pump 2 and conveyed into a condenser 3, the waste water solution is heated by condensation heat of the condenser 3, and the waste water flows out of the condenser 3 and then enters a mass transfer unit 4; the spent liquor is separated in the mass transfer unit 4, 80% of the water is transferred to the air and enters the moisture separation unit 5, and the remaining concentrated liquor is discharged and specially treated.
Preferably, the treatment system utilizes a heat pump as a driving heat source and a driving cold source, an evaporator 8 is arranged in the moisture precipitation unit 5, and the evaporator 8, the compressor 7 and the condenser 3 jointly form a heat pump circulating pipeline 20.
Preferably, the mass transfer unit 4, the moisture separation unit 5 and the fan 6 together form a circulating air line 30. The mass transfer unit 4 transfers 80% of water in the wastewater into air and then enters the moisture analysis unit 5, the moisture analysis unit 5 is internally provided with an evaporator 8, the saturated humid air is separated out condensate water in the evaporation stage of the heat pump, and the condensate water reaches the discharge standard and can be directly discharged or recycled. The air after the condensed water is discharged from the circulating air outlet 52 and enters the mass transfer unit 4 through the fan 6, so that the air is recycled, and the whole circulating air pipeline 30 is in closed circulation.
Preferably, the closed circulating air in the circulating air line 30 is an extraction medium, and the mass transfer unit 4 transfers 80% of water in the waste liquid to the air under the driving of low-temperature mass transfer power by utilizing the partial pressure difference between the surface of the waste liquid and water vapor in the circulating air.
Preferably, the condensation heat of the heat pump in the heat pump circulation line 20 heats the waste liquid to 50-60 ℃.
Preferably, the processing system is a full-automatic control system, and comprises human-computer interaction, real-time monitoring, emergency braking, system fault alarming and diagnosing functions and remote monitoring.
The invention concentrates and separates the water and the waste liquid, and no waste discharge is generated except the separated waste water concentrated solution in the operation process; the heat pump is adopted as a driving heat source and a driving cold source, the cold and heat energy in the system device is balanced, the energy utilization efficiency is high, the mature heat pump technology can be operated fully automatically, and unattended operation is realized; the energy-saving and environment-friendly distillation device has the advantages of energy conservation, environmental protection, no waste gas emission, no secondary pollution and environmental friendliness, and condensed water obtained by distillation can be directly recycled; compared with other wastewater treatment technologies, the structure is relatively simple, the water softening requirement is low or no in the wastewater pretreatment step, the hardness of inlet water can reach 5000, organic matters in the wastewater are not limited, and more types of wastewater treatment requirements can be met.
In addition, the invention adopts the low-temperature mass transfer and carrier gas extraction technology, and the evaporation of gas-liquid mass transfer and heat transfer is carried out on the surface of the filler, so that the surface structure of the evaporator does not influence the evaporation efficiency, the shutdown risk caused by scaling is reduced to one tenth of that of a common evaporator, and the operation cost is indirectly reduced.
The invention adopts a low-temperature mass transfer process, wastewater can directly enter main equipment for evaporation after simple pretreatment, effluent can be directly discharged, the pretreatment requirement is saved, the increased sludge amount caused by introduction of medicaments is reduced, the process chain is shorter, the energy consumption is lower, and the integral operation cost can be greatly reduced.
The present invention has been described in relation to the above embodiments, which are only exemplary of the implementation of the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. Rather, it is intended that all such modifications and variations be included within the spirit and scope of this invention.
Claims (7)
1. An industrial wastewater treatment system based on a low-temperature mass transfer concentration technology is characterized by comprising a solution tank, a water pump, a condenser, a mass transfer unit, a moisture analysis unit, a fan and a compressor; the system comprises a solution tank, a water pump, a condenser, a mass transfer unit, a moisture analysis unit, a fan, a compressor, a pipeline and a condenser, wherein the solution tank is used for containing a wastewater stock solution, an outlet of the solution tank is connected with the water pump, an outlet of the water pump is connected to the condenser, the condenser is connected with the mass transfer unit, an outlet of the mass transfer unit is connected to the moisture analysis unit, the moisture analysis unit comprises a condensate water outlet and a circulating air outlet, circulating air conveyed by the circulating air outlet is conveyed to the mass transfer unit through the fan, and the moisture analysis unit is connected.
2. The industrial wastewater treatment system based on low-temperature mass transfer concentration technology according to claim 1, characterized in that: the treatment system utilizes a heat pump as a driving heat source and a cold source, an evaporator is arranged in the moisture separating unit, and the evaporator, the compressor and the condenser jointly form a heat pump circulation pipeline.
3. The industrial wastewater treatment system based on low-temperature mass transfer concentration technology according to claim 2, characterized in that: the solution tank, the water pump, the condenser and the mass transfer unit jointly form a waste aqueous solution pipeline.
4. The industrial wastewater treatment system based on low-temperature mass transfer concentration technology according to claim 3, characterized in that: the mass transfer unit, the moisture analysis unit and the fan form a circulating air pipeline together.
5. The industrial wastewater treatment system based on low-temperature mass transfer concentration technology according to claim 4, characterized in that: the closed circulating air in the circulating air pipeline is an extraction medium, and the mass transfer unit transfers 80% of water in the waste liquid to the air under the driving of low-temperature mass transfer power by utilizing the partial pressure difference between the surface of the waste liquid and water vapor in the circulating air.
6. The industrial wastewater treatment system based on low-temperature mass transfer concentration technology according to claim 2, characterized in that: and the condensation heat of the heat pump in the heat pump circulating pipeline heats the waste liquid to 50-60 ℃.
7. The industrial wastewater treatment system based on low-temperature mass transfer concentration technology according to claim 1, characterized in that: the processing system is a full-automatic control system and comprises man-machine interaction, real-time monitoring, emergency braking, system fault alarming and diagnosing functions and remote monitoring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010211095.7A CN111410251A (en) | 2020-03-24 | 2020-03-24 | Industrial wastewater treatment system based on low-temperature mass transfer concentration technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010211095.7A CN111410251A (en) | 2020-03-24 | 2020-03-24 | Industrial wastewater treatment system based on low-temperature mass transfer concentration technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111410251A true CN111410251A (en) | 2020-07-14 |
Family
ID=71489141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010211095.7A Pending CN111410251A (en) | 2020-03-24 | 2020-03-24 | Industrial wastewater treatment system based on low-temperature mass transfer concentration technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111410251A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112093810A (en) * | 2020-09-24 | 2020-12-18 | 宿迁润地环保科技有限公司 | Method and device for preparing ammonium fluoride by recovering alkaline wastewater in tantalum-niobium hydrometallurgy |
| CN112759025A (en) * | 2020-12-31 | 2021-05-07 | 上海春沂环保设备有限公司 | Full-automatic low temperature extraction waste water treatment equipment |
| CN112979029A (en) * | 2021-01-26 | 2021-06-18 | 南通职业大学 | Hazardous waste liquid extraction and concentration process device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105776377A (en) * | 2016-04-14 | 2016-07-20 | 上海理工大学 | Industrial liquid hazardous waste treatment system |
| CN110498462A (en) * | 2019-07-15 | 2019-11-26 | 上海理工大学 | A kind of industrial wastes processing system and method based on carrier gas extraction low temperature mass transfer |
| CN110844955A (en) * | 2019-12-11 | 2020-02-28 | 安徽同速环保科技有限公司 | Closed circulation evaporation and condensation system for treating high-salt and high-COD wastewater |
-
2020
- 2020-03-24 CN CN202010211095.7A patent/CN111410251A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105776377A (en) * | 2016-04-14 | 2016-07-20 | 上海理工大学 | Industrial liquid hazardous waste treatment system |
| CN110498462A (en) * | 2019-07-15 | 2019-11-26 | 上海理工大学 | A kind of industrial wastes processing system and method based on carrier gas extraction low temperature mass transfer |
| CN110844955A (en) * | 2019-12-11 | 2020-02-28 | 安徽同速环保科技有限公司 | Closed circulation evaporation and condensation system for treating high-salt and high-COD wastewater |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112093810A (en) * | 2020-09-24 | 2020-12-18 | 宿迁润地环保科技有限公司 | Method and device for preparing ammonium fluoride by recovering alkaline wastewater in tantalum-niobium hydrometallurgy |
| CN112093810B (en) * | 2020-09-24 | 2023-05-12 | 宿迁润地环保科技有限公司 | Method for preparing ammonium fluoride by recycling alkaline wastewater in tantalum-niobium wet smelting |
| CN112759025A (en) * | 2020-12-31 | 2021-05-07 | 上海春沂环保设备有限公司 | Full-automatic low temperature extraction waste water treatment equipment |
| CN112979029A (en) * | 2021-01-26 | 2021-06-18 | 南通职业大学 | Hazardous waste liquid extraction and concentration process device |
| CN112979029B (en) * | 2021-01-26 | 2023-03-03 | 南通职业大学 | Hazardous waste liquid extraction and concentration process device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2018045707A1 (en) | Water treatment device and method using waste heat from power plant | |
| CN111410251A (en) | Industrial wastewater treatment system based on low-temperature mass transfer concentration technology | |
| CN201288071Y (en) | Vacuum distillation wastewater treatment device | |
| CN110498398B (en) | Waste hydrochloric acid differential pressure regeneration treatment system and regeneration treatment method | |
| CN102107101B (en) | High-temperature condensed water recycling and purifying system with ceramic membrane filter | |
| CN114455544A (en) | Low-energy-consumption hydrochloric acid resolving process | |
| CN210786298U (en) | Pyrolysis gas grading treatment device | |
| CN210065174U (en) | Concentrated recovery system of dilute sulfuric acid | |
| CN110550799A (en) | method and device for treating ammonia-containing wastewater | |
| CN113735209A (en) | Full-quantification landfill leachate treatment device and process | |
| CN113952843A (en) | Batch type MVR coupling vacuum membrane distillation concentration sulfuric acid solution recovery system and method | |
| WO2018045709A1 (en) | Power plant seawater desalination treatment device and method | |
| CN110655259B (en) | Coal chemical wastewater extraction dephenolization recycling treatment process | |
| CN219174370U (en) | Concentrated vaporization system of membrane dense water | |
| CN106186201A (en) | A kind of device and method of water-electricity cogeneration | |
| CN109578973B (en) | Deaerator system and working method | |
| CN107854857B (en) | Multi-pass concentration and purification device and using method thereof | |
| CN206108988U (en) | Utilize water treatment facilities of power plant's waste heat | |
| CN215905885U (en) | Full-quantification landfill leachate treatment device | |
| CN112340716A (en) | Method for recycling electrode foil formation phosphoric acid waste liquid | |
| CN205442935U (en) | Concentrated processing system of waste lye | |
| CN212450617U (en) | Waste hydrochloric acid differential pressure regeneration treatment system | |
| CN212050614U (en) | Contain concentrated system of salt sewage | |
| CN111320220A (en) | Process and device for concentrating high-salinity wastewater by circularly stripping air or industrial gas | |
| CN209383430U (en) | Spent caustic treatment device in a kind of cyclohexanone preparation process |
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: 20200714 |
|
| RJ01 | Rejection of invention patent application after publication |