CN110482629A - Utilize the direct contact evaporation process device and method thereof of air transmitting flue gas heat - Google Patents
Utilize the direct contact evaporation process device and method thereof of air transmitting flue gas heat Download PDFInfo
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- CN110482629A CN110482629A CN201910910771.7A CN201910910771A CN110482629A CN 110482629 A CN110482629 A CN 110482629A CN 201910910771 A CN201910910771 A CN 201910910771A CN 110482629 A CN110482629 A CN 110482629A
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- 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
- C02F1/042—Prevention of deposits
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- 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
- C02F1/043—Details
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- 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
- C02F1/048—Purification of waste water by evaporation
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- 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
- C02F1/16—Treatment of water, waste water, or sewage by heating by distillation or evaporation using waste heat from other processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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- 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
- C02F2103/06—Contaminated groundwater or leachate
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/02—Temperature
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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Abstract
A kind of direct contact evaporation process device and method thereof using air transmitting flue gas heat, which includes: the first evaporator, and the first evaporator is provided with first charging aperture, first discharge port and first row port；Second evaporator, the second evaporator are provided with second charging aperture, the second discharge gate and second exhaust port, second charging aperture and are connected to first discharge port；Air heat exchanger, air heat exchanger is provided with air inlet, air exhaust port, smoke air inlet, flue gas exhaust mouth, air exhaust port is all connected with the first evaporator and the second evaporator, for the high temperature air after absorbing heat in air heat exchanger to the first evaporator and the supply of the second evaporator.The problems such as present invention can use the heat in air transmitting high-temperature flue gas, and then high temperature air is evaporated for directly contact, can be to avoid fouling, corrosion, operational management is simple.
Description
Technical field
The present invention relates to the organic liquid waste processing technology fields with high salt of environmental protection, in particular to a kind of to be transmitted using air
The direct contact evaporation process device and method thereof of flue gas heat.
Background technique
The processing of landfill leachate is all an important topic in the disposition of China's domestic garbage comprehensive all the time.China
House refuse moisture content is high, and diafiltration output of fluid is big and pollutant concentration is high, and change of water quality range is big, and processing difficulty is apparently higher than Europe
U.S. developed country.
Contain a large amount of degradable and hardly degraded organic substances, ammonia nitrogen and inorganic salts etc., biological treatment in landfill leachate
It is current most important processing technique means, most easily biodegradable organics can be removed, and can be nitre by mineralized nitrogen
State nitrogen (can be removed further) in supplementary carbon source.But remaining hardly degraded organic substance and other pollutants can only generally pass through
Nanofiltration or the embrane methods such as reverse osmosis removal, membrane processing method is only a Physical entrapment process, and the film concentrate of generation is enriched greatly
Measure hardly degraded organic substance and salinity.Advanced oxidation processes can decompose and remove hardly degraded organic substance, but be difficult to remove containing polluted by nitrogen
Object, and the problems such as solving technology stability and higher processing cost is also needed in practical applications.Based on direct contact heat transfer original
The submerged combustion evaporation technology of reason has thoroughly evaded fouling problem, and two-period form submerged combustion evaporation technique is realized and evaporated
The removal of volatile organic matter in journey finally all gathers all organic and inorganic pollutants and salinity in solid residue,
It is widely used in the processing engineering of landfill leachate, especially film concentrate.
Chinese patent CN1278963C discloses a kind of evaporation burning of landfill percolate and is concentrated by evaporation at the two-stage
Reason method achieves preferable operational effect using the direct heat transfer evaporation mode of submerged combustion.But in actual production process
In, it is often subject to the limitation in biogas source, and the price of natural gas and security risk are all higher, therefore its application is by objective item
The serious restriction of part.
Soot or the flue gas of steam power plant carry big energy, and it is a kind of that the heat of flue gas, which is used for waste liquid evaporation process,
Good UTILIZATION OF VESIDUAL HEAT IN mode, but according to the mode of indirect heat transfer evaporation, evaporation process equipment serious fouling will occurs and ask
Topic；According to the evaporation mode of flue gas and liquid direct contact heat transfer, it is mutual that pollutant between flue gas and liquid to be evaporated will be faced
The problem of transfer.
Summary of the invention
To solve the problems, such as or alleviating at least one in above-mentioned technical problem, the present invention proposes that a kind of utilization air transmits cigarette
The direct contact evaporation process device and method thereof of gas heat.
One aspect of the present invention proposes a kind of direct contact evaporation process equipment using air transmitting flue gas heat, comprising:
First evaporator, first evaporator are provided with first charging aperture, first discharge port and first row port；
Second evaporator, second evaporator is provided with second charging aperture, the second discharge gate and second exhaust port, described
Second charging aperture is connected to the first discharge port, for receiving liquid to be processed in first evaporation from first evaporator
The primary concentration liquid for evaporating and being formed in tank；
Air heat exchanger, the air heat exchanger are provided with air inlet, air exhaust port, smoke air inlet, flue gas
Exhaust outlet, the air exhaust port are all connected with first evaporator and second evaporator, for steaming to described first
Send out the high temperature air of tank and second evaporator supply in the air heat exchanger after heat absorption.
Preferably, first evaporator is internally provided with the first distribution device, and the inside of second evaporator sets
It is equipped with the second distribution device, the air exhaust port is all connected with first distribution device and second distribution device.
Preferably, the direct contact evaporation process equipment using air transmitting flue gas heat is used for garbage disposal site
And/or steam power plant, incinerator is provided in garbage disposal site and/or steam power plant, and high-temperature flue gas is generated by the incinerator, it is described
High-temperature flue gas is passed into the smoke air inlet, and the flue gas exhaust mouth leads to the smoke processing system or cigarette of the incinerator
Chimney.
Preferably, the first row port is connected to the incinerator, and the second exhaust port leads to ambient atmosphere or cold
Condenser.
Second aspect of the present invention proposes a kind of direct contact evaporation process method using air transmitting flue gas heat, described
Utilization described in any one of above-mentioned technical proposal is used using the direct contact evaporation process method of air transmitting flue gas heat
The direct contact evaporation process equipment of air transmitting flue gas heat.
Preferably, liquid to be processed is entered in first evaporator by the first charging aperture, and the liquid to be processed exists
It is evaporated in first evaporator and carries out primary concentration, the primary concentration liquid that the primary concentration generates passes through the first row
Material mouth discharge, and be passed through in second evaporator by the second charging aperture, the primary concentration liquid is described second
It is evaporated in evaporator and carries out secondary concentration, the secondary concentration liquid and/or salt slurry that the secondary concentration generates pass through described second
Discharge gate discharge.
Preferably, burning disposal is carried out to the first boil-off gas that the primary concentration generates, the secondary concentration generates
The second boil-off gas be directly entered ambient atmosphere or to the secondary concentration generate the second boil-off gas condense.
Preferably, the cycles of concentration of the primary concentration is less than the cycles of concentration of the secondary concentration.
Preferably, the liquid to be processed is landfill leachate or haline water.
Preferably, the temperature for the high temperature air being discharged from the air exhaust port is not less than 200 DEG C,
The temperature for the primary concentration liquid being discharged from the first discharge port is 85 DEG C to 95 DEG C, from second discharge
The temperature of the secondary concentration liquid of mouth discharge is 85 DEG C to 95 DEG C,
The temperature for the first boil-off gas being discharged from the first row port of first evaporator is lower than 100 DEG C, from
The temperature of second boil-off gas of the second exhaust port discharge of second evaporator is lower than 100 DEG C.
At least one effect in following beneficial effect can be obtained through the above technical solution:
1. the heat that can use in high-temperature flue gas heats air, eliminates submerged combustion in the prior art and steam
The reduction of used burner when hair, burner not only reduces the cost of investment of building equipment, and reduces burner
Brought security risk keeps operational management simpler.
2. the submerged combustion evaporation due to the prior art uses burner heat supply, heat input is determined by the combustible gas scale of construction,
Therefore the real-time inspection and control system for needing to have to combustion process real-time control.Since combustion process is being burned in the present invention
It is carried out in furnace, the risk that burning is not exploded far from evaporator, therefore simplifies the control flow in evaporation, in actual motion
In it is convenient for management.
3. the high-temperature flue gas that the present invention can use waste incineration generation heats air, benefit is subject to high-temperature flue gas
With realizing the high-temperature flue gas in garbage disposal site and being uniformly processed for two pollution sources of percolate, reached and " controlled with useless
It is useless " effect, reduce the use of fuel gas, reduce the cost of percolate processing.
4. being conducted heat between flue gas and air using dividing wall type using air as the intermediate medium of transmitting heat, there is no steam
The problem of sending out processing equipment fouling；Flue gas is not directly contacted with liquid to be evaporated, is avoided pollutant between the two and is mutually turned
The problem of shifting.
Detailed description of the invention
Fig. 1 is the direct contact evaporation process using air transmitting flue gas heat according to embodiment of the present invention
The structural schematic diagram of equipment.
Description of symbols
1 first evaporator, 11 12 first distribution device of first charging aperture, 13 first discharge port, 14 first row port
2 second evaporator, 21 second charging aperture, 22 second 23 second discharge gate of distribution device, 24 second exhaust port
3 air heat exchanger, 31 air inlet, 32 air exhaust port, 33 smoke air inlet, 34 flue gas exhaust mouth.
Specific embodiment
In order to clearly illustrate the above objects, features and advantages of the present invention, the part in conjunction with attached drawing specifically
Bright a specific embodiment of the invention.Other than each embodiment described in this part, the present invention can also pass through it
His different mode is implemented, without departing from the spirit of the invention, those skilled in the art can be correspondingly improved,
Deformation and replacement, therefore the present invention is not limited by specific embodiment disclosed in the part.Protection scope of the present invention Ying Yiquan
Subject to benefit requires.
As shown in Figure 1, the present invention proposes a kind of direct contact evaporation process equipment using air transmitting flue gas heat,
Including the first evaporator 1, the second evaporator 2 and air heat exchanger 3.
First evaporator 1 is provided with first charging aperture 11, first charging aperture 11 can be located at the first evaporator 1 side wall or
At top, for conveying percolate to be processed into the first evaporator 1, (or haline water, haline water refer to first charging aperture 11
The waste water of total saliferous mass fraction at least 1%).First evaporator 1 is internally provided with the first distribution device 12, the first gas distribution dress
Setting 12 can tear gas at micro-bubble.The bottom of first evaporator 1 is provided with first discharge port 13, the first evaporator 1
Top or top be provided with first row port 14.
The tank bottom of first evaporator 1 is preferably formed into the incline structures such as taper, tubaeform or slope shape, makes the diafiltration of concentration
Liquid can be discharged from the first discharge port 13 of 1 bottom of the first evaporator under the effect of gravity.First row port 14, which can be connected to, to be burnt
Furnace (not shown) is burnt, the gas such as volatilizable organic matter and vapor that evaporation generates in the first evaporator 1 is made to be passed through burning
It is incinerated in furnace.
Second evaporator 2 is provided with second charging aperture 21, second charging aperture 21 can be located at the second evaporator 2 side wall or
At top.Second charging aperture 21 connects first discharge port 13, and second charging aperture 21 is used to convey into the second evaporator 2 from first
The percolate for the concentration that discharge gate 13 is discharged.Second evaporator 2 is internally provided with the second distribution device 22, the second distribution device
22 can tear gas at micro-bubble.The bottom of second evaporator 2 is provided with the second discharge gate 23, the second evaporator 2
Top or top are provided with second exhaust port 24.
The tank bottom of second evaporator 2 is preferably formed into the incline structures such as taper, tubaeform or slope shape, makes the diafiltration of concentration
Liquid can be discharged from the second discharge gate 23 of 2 bottom of the second evaporator under the effect of gravity.Second exhaust port 24 can connect cold
Condenser is directly communicated to ambient atmosphere, and the vapor for evaporating generation in the second evaporator 2 is made to be collected or discharge.
Air heat exchanger 3 is provided with air inlet 31, air exhaust port 32, smoke air inlet 33, flue gas exhaust mouth 34.
Air inlet 31 is communicated with air exhaust port 32, and smoke air inlet 33 is communicated with flue gas exhaust mouth 34.Flue gas exhaust mouth 34 is logical
To the smoke processing system or chimney of incinerator, the cold flue gas after heat exchanging is handled.
Direct contact evaporation process equipment using air transmitting flue gas heat of the invention can be used for garbage disposal site
And/or steam power plant, incinerator is provided in garbage disposal site and/or steam power plant, and high-temperature flue gas, the high temperature are generated by incinerator
Flue gas can be passed through smoke air inlet 33.
The air exhaust port 32 of air heat exchanger 3 is all connected with the first distribution device 12 and the second distribution device 22.First
Distribution device 12 and the second distribution device 22 can will by the high-temperature gas tearing that is formed after 3 heat exchange of air heat exchanger at
Micro-bubble.
First discharge port 13 connects second charging aperture 21, so that the first evaporator 1 be made to be connected with the second evaporator 2.Second
The salt slurry that discharge gate 23 is used to discharge the percolate after concentration and/or is formed after being evaporated by percolate.
The course of work of the direct contact evaporation process equipment using air transmitting flue gas heat is described below.
The high-temperature flue gas and air that garbage disposal site and/or steam power plant discharge are subjected to heat exchange by air heat exchanger 3,
High temperature air is formed, the cold flue gas after heat exchange is passed through smoke processing system (not shown) and is handled.Specifically, incinerator is being burnt
The high-temperature flue gas generated during burning is passed through smoke air inlet 33, and the air of room temperature is passed through air inlet 31 in atmosphere, passes through
Air heat exchanger 3 is exchanged by heat, cold flue gas is discharged by flue gas exhaust mouth 34 after cooling high-temperature fume, after air is heated
High temperature air is discharged by air exhaust port 32.After the exchange of the heat of air heat exchanger 3, it is discharged by air exhaust port 32
The temperature of high temperature air is not less than such as 200 DEG C.The high temperature air that air exhaust port 32 is discharged is passed through the first evaporator 1 and second
In evaporator 2.
It is appreciated that heating using the heat in high-temperature flue gas to air, submergence combustion in the prior art is eliminated
Used burner when evaporation is burnt, the reduction of burner not only reduces Installed capital cost, and reduces burner institute
Bring security risk keeps operational management more convenient.Since the submerged combustion evaporation of the prior art uses burner, heat is defeated
Enter and determined by the combustible gas scale of construction, it is therefore desirable to which there is the real-time inspection and control system to combustion process real-time control.Due at this
Combustion process carries out in incinerator in invention, far from the risk that evaporator does not explode, therefore simplifies the control in evaporation
Process, it is convenient for management in actual operation.
In the prior art when the landfill gas source as fuel gas is restricted, need to be replaced by merchantable fuel(s)
In generation, causes operating cost high and consumes mass energy.And the high-temperature flue gas that the present invention utilizes waste incineration to generate, to high temperature cigarette
Gas is used, and realizes being uniformly processed for two pollution sources (high-temperature flue gas and the percolate) in garbage disposal site, reaches
The effect of " treatment of wastes with processes of wastes against one another " reduces the use of fuel gas, reduces the cost of percolate processing.It is appreciated that rubbish is burnt
The high-temperature flue gas that burning generates is passed through smoke processing system after can cooling down and is handled.
Percolate is passed through in the first evaporator 1 by pipeline from first charging aperture 11, the high temperature that air exhaust port 32 is discharged
Air leads to the first distribution device 12.Percolate is contacted with the high temperature micro-bubble that the first distribution device 12 exports, and makes percolate
Primary concentration, the volatile pollutant volatilization in percolate generate level-one boil-off gas.The cycles of concentration of primary concentration is not
More than 2 times.Cycles of concentration refers to the ratio of liquid volume and the volume of the concentrated liquid to be evaporated.It is appreciated that can be steamed by control
The time of concentration process is sent out to control cycles of concentration, the time of concentration process is long, and cycles of concentration is with regard to big, the time of concentration process
Short, cycles of concentration is with regard to small.Level-one boil-off gas mainly includes small point of volatile organic matter, water vapour, carbon dioxide and nitrogen etc.
Sub- substance.Level-one boil-off gas is discharged from first row port 14 and is passed through incinerator and is incinerated, the level-one boil-off gas of discharge
The temperature of body is lower than 100 DEG C, for example, about 90 DEG C.
It is logical by first discharge port 13 and second charging aperture 21 after percolate completes primary concentration in the first evaporator 1
Enter the second evaporator 2, the primary concentration percolate temperature flowed out by first discharge port 13 can be such as 85 DEG C to 95 DEG C.
The high temperature air that air exhaust port 32 is discharged leads to the second distribution device 22, primary concentration percolate and the second gas distribution
The high temperature micro-bubble contact that device 22 exports makes primary concentration percolate carry out secondary concentration, the volatilization of primary concentration percolate
Generate dual evaporation gas.The cycles of concentration of secondary concentration is 5 to 6 times.Large quantity of moisture in primary concentration percolate, which evaporates, to be produced
Raw dual evaporation gas, dual evaporation gas mainly includes water vapour.Dual evaporation gas can be with from the discharge of second exhaust port 24
It is directly discharged in ambient atmosphere or is condensed, the temperature of the dual evaporation gas of discharge is lower than 100 DEG C, for example, about
90℃。
Primary concentration percolate is completed second in the second evaporator 2 after being concentrated by evaporation, and 23 row of the second discharge gate is passed through
Out, the secondary concentration percolate temperature flowed out by the second discharge gate 23 can be such as 85 DEG C to 95 DEG C.
As described above, in the present invention, the cycles of concentration of the primary concentration carried out in the first evaporator 1 is less than second
The cycles of concentration of the secondary concentration carried out in evaporator 2.
Claims (10)
1. a kind of direct contact evaporation process equipment using air transmitting flue gas heat characterized by comprising
First evaporator, first evaporator are provided with first charging aperture, first discharge port and first row port；
Second evaporator, second evaporator are provided with second charging aperture, the second discharge gate and second exhaust port, and described second
Feed inlet is connected to the first discharge port, for receiving liquid to be processed in first evaporator from first evaporator
The primary concentration liquid of evaporation and formation；
Air heat exchanger, the air heat exchanger are provided with air inlet, air exhaust port, smoke air inlet, flue gas exhaust
Mouthful, the air exhaust port is all connected with first evaporator and second evaporator, is used for first evaporator
High temperature air after absorbing heat in the air heat exchanger with second evaporator supply.
2. the direct contact evaporation process equipment according to claim 1 using air transmitting flue gas heat, feature exist
In first evaporator is internally provided with the first distribution device, and second evaporator is internally provided with the second gas distribution
Device, the air exhaust port are all connected with first distribution device and second distribution device.
3. the direct contact evaporation process equipment according to claim 1 using air transmitting flue gas heat, feature exist
In the direct contact evaporation process equipment using air transmitting flue gas heat is used for garbage disposal site and/or steam power plant, rubbish
It is provided with incinerator in rubbish Treatment stations and/or steam power plant, high-temperature flue gas is generated by the incinerator, the high-temperature flue gas is passed into
The smoke air inlet, the flue gas exhaust mouth lead to the smoke processing system or chimney of the incinerator.
4. the direct contact evaporation process equipment according to claim 3 using air transmitting flue gas heat, feature exist
In the first row port is connected to the incinerator, and the second exhaust port leads to ambient atmosphere or condenser.
5. a kind of direct contact evaporation process method using air transmitting flue gas heat, which is characterized in that described to utilize air
The direct contact evaporation process method for transmitting flue gas heat is transmitted using described in any one of any one of claims 1 to 44 using air
The direct contact evaporation process equipment of flue gas heat.
6. the direct contact evaporation process method according to claim 5 using air transmitting flue gas heat, feature exist
In liquid to be processed is entered in first evaporator by the first charging aperture, and the liquid to be processed is in first evaporation
It being evaporated in tank and carries out primary concentration, the primary concentration liquid that the primary concentration generates is discharged by the first discharge port, and
And be passed through in second evaporator by the second charging aperture, the primary concentration liquid evaporates in second evaporator
And secondary concentration is carried out, the secondary concentration liquid and/or salt slurry that the secondary concentration generates are discharged by second discharge gate.
7. the direct contact evaporation process method according to claim 6 using air transmitting flue gas heat, feature exist
In, to the first boil-off gas progress burning disposal that the primary concentration generates, the second boil-off gas that the secondary concentration generates
The second boil-off gas that body is directly entered ambient atmosphere or generates to the secondary concentration condenses.
8. the direct contact evaporation process method according to claim 6 using air transmitting flue gas heat, feature exist
In the cycles of concentration of the primary concentration is less than the cycles of concentration of the secondary concentration.
9. the direct contact evaporation process method according to claim 6 using air transmitting flue gas heat, feature exist
In the liquid to be processed is landfill leachate or haline water.
10. the direct contact evaporation process method according to claim 6 using air transmitting flue gas heat, feature exist
In, the temperature for the high temperature air being discharged from the air exhaust port is not less than 200 DEG C,
The temperature for the primary concentration liquid being discharged from the first discharge port is 85 DEG C to 95 DEG C, is arranged from second discharge gate
The temperature of the secondary concentration liquid out is 85 DEG C to 95 DEG C,
The temperature for the first boil-off gas being discharged from the first row port of first evaporator is lower than 100 DEG C, from described
The temperature of second boil-off gas of the second exhaust port discharge of the second evaporator is lower than 100 DEG C.
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| CN111470564A (en) * | 2020-05-22 | 2020-07-31 | 清华大学 | Evaporation equipment and method with direct contact heat transfer and indirect contact heat transfer coupled |
| CN114656094A (en) * | 2022-04-26 | 2022-06-24 | 南京林普热能科技有限公司 | High-salinity organic wastewater evaporation method and device based on energy gradient utilization |
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| CN108423729A (en) * | 2018-03-21 | 2018-08-21 | 国电南京电力试验研究有限公司 | A kind of thermal wastewater concentration systems that hot-air Natural Circulation water is in line and method |
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