CN108439512A - A kind of thermal drivers high organic wastewater Zero-discharge treating process with high salt - Google Patents
A kind of thermal drivers high organic wastewater Zero-discharge treating process with high salt Download PDFInfo
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- CN108439512A CN108439512A CN201810473688.3A CN201810473688A CN108439512A CN 108439512 A CN108439512 A CN 108439512A CN 201810473688 A CN201810473688 A CN 201810473688A CN 108439512 A CN108439512 A CN 108439512A
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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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F2001/5218—Crystallization
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
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Abstract
The invention discloses a kind of thermal drivers high organic wastewater Zero-discharge treating process with high salt, specifically include following steps：The high organic wastewater with high salt of pending certain temperature is after filtering pre-processes, it sequentially enters the first effect humidifier, the second effect humidifier and third effect humidifier to be concentrated, the Hot wet air heating that the first effect humidifier generates returns to the first effect humidifier after the first effect dehumidifier cool-down dehumidification；The Hot wet air heating that second effect humidifier generates returns to the second effect humidifier after waste-heat recovery device cool-down dehumidification；The Hot wet air heating that third effect humidifier generates is immediately discharged to air, and the high organic wastewater with high salt close to saturation state that bottom generates enters crystallization tank, cools down at room temperature, the crystal salt of generation enters desalination treatment process.This technological process is succinct, it is easy to operate, do not add that chemical agent, mass-and heat-transfer are efficient, equipment investment is small, small accommodation area, it is energy-saving, can run steadily in the long term, application range.
Description
Technical field
The invention belongs to field of waste water treatment, and in particular to a kind of zero discharge treatment work for high organic wastewater with high salt
Skill.
Background technology
The waste water that the industries such as petrochemical industry, coal chemical industry, metallurgy, pharmacy, printing and dyeing, papermaking are discharged in process of production has height
The characteristics of salt, high organic matter, for usual salt content in 3000mg/L or more, COD is in 2000mg/L or more, and temperature is higher, contains
There is the poisonous and hazardous organic matter such as a large amount of aromatic compounds, heterocyclic compound, hydrocarbon compound, even across processing with heel row
Be put into water body still can cause security risk to water environment.Therefore many local governments require this kind of enterprise that must accomplish zero liquid
Body discharges, abbreviation zero-emission.
Heat exchange cooling processing, pretreatment, life are generally comprised to the Zero-discharge treating process of high organic wastewater with high salt at present
The series of process unit such as change processing, advanced oxidation, sand filtration, ultrafiltration, reverse osmosis, the concentrated water in addition generated to technique will also carry out
Oxidation, softening and concentration, finally use evaporative crystallization technique to form solid salt.That there are flows is superfluous for existing Zero-discharge treating process
It is long, complicated for operation, stability is poor, energy reagent consumption is high, take up a large area, operating cost is high, solid salt is because of content of organics
It is high and the shortcomings of be difficult to dispose, it is difficult to operation steady in a long-term, application range are restricted.
Invention content
It is an object of the invention to design a kind of thermal drivers high organic wastewater Zero-discharge treating process with high salt, solve above-mentioned
Problem.
To achieve the goals above, the technical solution adopted by the present invention is as follows：
A kind of thermal drivers high organic wastewater Zero-discharge treating process with high salt, includes the following steps：
Step（1）, the pending high organic wastewater with high salt with certain temperature after filtering pre-processes with it is pre- through heat exchanger
First effect humidifier circulation fluid mixing of heat, is delivered to the first effect humidifier later, through distributor disperse with from described the
The filler that the air that one effect humidifier bottom enters is imitated by described first inside humidifier carries out counter current contacting；First effect
The saturation Hot wet air heating being discharged at the top of humidifier（Relative humidity RH=100%）Through fan（Or wind turbine）Pressure-increasing unit to the first effect subtracts
Wet device returns again to the first effect humidifier through cool-down dehumidification and recycles；Hot wet air heating is cold in the first effect dehumidifier
The solidifying condensed water generated is through pipelined to battery limit (BL)；
Step（2）, the second effect humidifier circulation fluid delivers into the first effect dehumidifier through pump and Hot wet air heating carries out hot friendship
It changes, the second effect humidifier circulation fluid temperature increases, and the second effect humidifier circulation fluid imitates humidifier row with described first later
High organic wastewater with high salt after the concentration gone out is mixed at the top of the second effect humidifier；
Step（3）, described second, which imitates the mixing liquid entered at the top of humidifier, disperses and imitates from described second to humidify through distributor
The air that device bottom enters imitates humidifier inner stuffing by described second and carries out counter current contacting, the second effect humidifier top
The Hot wet air heating of the saturation of discharge（Relative humidity RH=100%）Through fan（Or wind turbine）Supercharging enters waste-heat recovery device；
Step（4）, the Hot wet air heating of the second effect humidifier discharge（Relative humidity RH=100%）Through fan（Or wind turbine）Supercharging
Into the second effect dehumidifier cool-down dehumidification in the waste-heat recovery device, pass through the air in the waste-heat recovery device later
The second effect humidifier is back to after heater heating to recycle；Hot wet air heating condenses production in the second effect dehumidifier
Raw condensed water is exported through pipeline to out-of-bounds, and the condensation heat of generation enters the heat pump in the waste-heat recovery device by heat exchange
In cold water side recirculated water, condensation heat is transferred to heat-pump hot-water side recirculated water through the heat pump in the heat pump cold water side recirculated water
In；
On the one hand condensation heat in the recirculated water of heat-pump hot-water side passes through the heat exchanger heat make-up institute in the waste-heat recovery device
The first effect humidifier circulation fluid institute calorific requirement is stated, the second effect dehumidifier outlet is on the one hand heated by the air heater
On the other hand the waste heat in the recirculated water of the heat-pump hot-water side is discharged in air by thermal component；
Step（5）, described second imitates the high organic wastewater with high salt after the cooling concentration of humidifier discharge, adds with third effect
It is delivered to after wet device circulation fluid mixing at the top of the third effect humidifier, dispersion of the mixing liquid through distributor is imitated with the third
The air that humidifier bottom enters imitates humidifier inner stuffing by the third and carries out counter current contacting, imitates and humidifies from the third
The Hot wet air heating being discharged at the top of device is fed directly to air；
Step（6）, the high organic wastewater with high salt close to saturation state of third effect humidifier discharge enters in crystallization tank,
Cool down at room temperature, the crystal salt generated in the crystallization tank enters desalination treatment process, the coolant liquid warp in the crystallization tank
Pump is back to the third effect humidifier.
In entire technique, the high organic wastewater with high salt imitates the (n-1)th of dehumidifier composition in the (n-1)th effect humidifier and (n-1)th
Circular treatment is carried out in effect humidification-dehumidification unit（n≥2）；Humidifier quantity is n（n≥2）, dehumidifier quantity is n-1（n≥
2）.
The air passes in and out humidifier and dehumidifier by closed circulation mode.
The air can also select independent air to open wide mode, battery limit (BL) air is through wind when passing in and out humidifier and dehumidifier
Machine is expelled to battery limit (BL) directly into the (n-1)th effect humidifier, then by the (n-1)th effect dehumidifier air bleeding valve.
The n-1 effects humidification-dehumidification unit handled high organic wastewater with high salt can be one, or multiple
The combination of repetitive unit；Wherein, the n-th effect humidifier is independent humidifying unit.
Hot wet air heating is carried out by the waste-heat recovery device in (n-1)th effect dehumidifier of the (n-1)th effect humidification-dehumidification unit
The recycling of cool-down dehumidification and condensation heat.
High organic wastewater with high salt enters at the top of the n-th humidifier in the n-th effect humidifier, and filler is distributed in by distributor
Surface carries out countercurrent mass transfer heat transfer with the air entered from the n-th humidifier bottom.
The liquid that air enters with top in the n-th effect humidifier passes through mellapak packing（Or corrugated wire gauze packing or grid are filled out
Material）Carry out counter current contacting.
Air, which is pressurized by fan (or wind turbine) from the n-th effect humidifier bottom, to be entered.
The certain temperature of pending high organic wastewater with high salt is 20-100 DEG C or more.
Beneficial effects of the present invention can be summarized as follows：
1, the present invention provides a kind of thermal drivers high organic wastewater Zero-discharge treating process with high salt, high organic matter with high salt is realized
Zero liquid of waste water discharges.
2, the condensed water that Hot wet air heating condensation generates in technique, can be used as production technology water or process of circulation cooling water is mended
Water, the production water rate of recovery is up to 80% or more.
3, full technique only has three humidifier, dehumidifier and waste-heat recovery device major parts, and flow is succinct, floor space
Save, equipment investment expense it is low, it is easy to operate, can run steadily in the long term.
4, technique is not required to cool down to high organic wastewater with high salt, is handled using the waste heat of raw water, and waste heat recovery is arranged
Device, it is energy-saving.
Chemical agent is not added when 5, running, and non-secondary pollution, operating cost is low.
Description of the drawings
Fig. 1 is the process flow chart of the present invention.
Reference numeral is as follows：
1, the first effect humidifier 2, second imitates humidifier
3, third effect humidifier 4, first imitates dehumidifier
5, the second effect dehumidifier 6, heat pump
7, heat exchanger 8, thermal component
9, air heater 10, filter device
11, fan（Or wind turbine）12, distributor
13, pump 14, crystallization tank
21, high organic wastewater 22 with high salt, condensed water
23, battery limit (BL) air 24, crystal salt
61, heat pump cold water side 62, heat-pump hot-water side.
Specific implementation mode
In order to make the technical problems, technical solutions and beneficial effects solved by the present invention be more clearly understood, below to this
Invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, and does not have to
It is of the invention in limiting.
A kind of flow of thermal drivers as shown in Figure 1 21 Zero-discharge treating process of high organic wastewater with high salt, including it is as follows
Step：
Step（1）, the pending high organic wastewater 21 with high salt with certain temperature after filtering pre-processes with through heat exchanger 7
Preheating first effect 1 circulation fluid of humidifier mixing, be delivered to later it is described first effect humidifier 1, through distributor 12 disperse with from
The filler that the air that the first effect humidifier, 1 bottom enters is imitated by described first inside humidifier 1 carries out counter current contacting；Institute
State the saturation Hot wet air heating that 1 top of the first effect humidifier is discharged（Relative humidity RH=100%）Through fan（Or wind turbine）11 superchargings are defeated
It send to the first effect dehumidifier 4, returning again to the first effect humidifier 1 through cool-down dehumidification recycles；Hot wet air heating is described
The condensed water 22 of generation is condensed through pipelined to battery limit (BL) in one effect dehumidifier 4；
Step（2）, the second effect 2 circulation fluid of humidifier delivers into the first effect dehumidifier 4 through pump 13 and Hot wet air heating carries out
Heat exchange, described second, which imitates 2 circulation fluid temperature of humidifier, increases, and the second effect 2 circulation fluid of humidifier adds with first effect later
High organic wastewater 21 with high salt after the concentration that wet device 1 is discharged is mixed into 2 top of the second effect humidifier；
Step（3）, described second, which imitates the mixing liquid entered at the top of humidifier 2, disperses and imitates from described second to add through distributor 12
The air that 2 bottom of wet device enters imitates 2 inner stuffing of humidifier by described second and carries out counter current contacting, the second effect humidifier
The Hot wet air heating for the saturation that 2 tops are discharged（Relative humidity RH=100%）Through fan（Or wind turbine）11 superchargings enter waste heat recovery and fill
It sets；
Step（4）, the Hot wet air heating of the second effect discharge of humidifier 2（Relative humidity RH=100%）Through fan（Or wind turbine）11
Supercharging enters the second effect 5 cool-down dehumidification of dehumidifier in the waste-heat recovery device, later by the waste-heat recovery device
Air heater 9 heat up after be back to it is described second effect humidifier 2 recycle；Hot wet air heating is in the second effect dehumidifier
The condensed water 22 that generation is condensed in 5 is exported through pipeline to out-of-bounds, and the condensation heat of generation enters the waste heat recovery by heat exchange
In 61 recirculated water of heat pump cold water side in device, condensation heat is transferred to through the heat pump 6 in 61 recirculated water of heat pump cold water side
In 62 recirculated water of heat-pump hot-water side；
On the one hand condensation heat in 62 recirculated water of heat-pump hot-water side passes through 7 heat make-up of heat exchanger in the waste-heat recovery device
On the one hand first effect, the 1 circulation fluid institute calorific requirement of humidifier heats the second effect dehumidifier by the air heater 9
On the other hand the waste heat in 62 recirculated water of heat-pump hot-water side is discharged in 5 outlet airs by thermal component 8；
Step（5）, the high organic wastewater 21 with high salt after the cooling concentration that the second effect humidifier 2 is discharged, with the third
3 top of third effect humidifier, dispersion and institute of the mixing liquid through distributor 12 are delivered to after effect 3 circulation fluid of humidifier mixing
It states the air that third effect humidifier 3 bottom enters 3 inner stuffing of humidifier is imitated by the third and carry out counter current contacting, from described
The Hot wet air heating that 3 top of third effect humidifier is discharged is fed directly to air；
Step（6）, the high organic wastewater 21 with high salt close to saturation state that third effect humidifier 3 is discharged enters crystallization tank
In 14, cool down at room temperature, the crystal salt 24 that is generated in the crystallization tank 14 enters desalination treatment process, in the crystallization tank 14
Coolant liquid be back to the third through pump 13 and imitate humidifier 3.
In a more preferred embodiment, the high organic wastewater 21 with high salt is in the (n-1)th effect humidifier and the (n-1)th effect dehumidification
Circular treatment is carried out in (n-1)th effect humidification-dehumidification unit of device composition（n≥2）；Humidifier quantity is n（n≥2）, dehumidifier number
Amount is n-1（n≥2）.
In a more preferred embodiment, the air passes in and out humidifier and dehumidifier by closed circulation mode.
In a more preferred embodiment, the air can also select independent sky when passing in and out humidifier and dehumidifier
Gas opens wide mode, and battery limit (BL) air 23 directly imitates humidifier through wind turbine into (n-1)th, then passes through the (n-1)th effect dehumidifier air bleeding valve discharge
To battery limit (BL).
In a more preferred embodiment, the n-1 handled high organic wastewater 21 with high salt imitates humidification-dehumidification list
Member can be one, or the combination of multiple repetitive units；Wherein, the n-th effect humidifier is independent humidifying unit.
In the embodiment more preferably selected, the wet sky of heat in the (n-1)th effect dehumidifier of the (n-1)th effect humidification-dehumidification unit
Gas carries out the recycling of cool-down dehumidification and condensation heat by the waste-heat recovery device.
In a more preferred embodiment, in the n-th effect humidifier high organic wastewater 21 with high salt at the top of the n-th humidifier
Into the air for being distributed in filler surface by distributor 12 and entering from the n-th humidifier bottom carries out countercurrent mass transfer heat transfer.
In a more preferred embodiment, the liquid that air enters with top in the n-th effect humidifier is filled out by Lamb wave line
Material（Or corrugated wire gauze packing or grid packing）Carry out counter current contacting.
In a more preferred embodiment, air is pressurized from the n-th effect humidifier bottom by fan (or wind turbine) 11 and is entered.
In a more preferred embodiment, the certain temperature of pending high organic wastewater 21 with high salt be 20-100 DEG C or with
On.
In the particular embodiment, in order to more clearly state the present invention, 1 couple of present invention further retouches below in conjunction with the accompanying drawings
It states.
The purpose of the present invention is making full use of the waste heat of high organic wastewater 21 with high salt, thermal drivers zero discharge treatment work is formed
Skill.Entire technological process includes mainly three humidifier, dehumidifier and waste-heat recovery device environment divisions, and flow is succinct, operates
It is convenient, do not add that chemical agent, mass-and heat-transfer and heat recovery efficiency are high, operating cost is low, equipment investment is small, small accommodation area,
It can run, have a wide range of application steadily in the long term.
Wherein, humidifier is divided into the first effect humidifier, the second effect humidifier ... n-th imitates humidifier（n=1、2、3…）, specifically
Humidifier number determines that preferably n=1,2,3 are three humidifiers, and also referred to as triple effect is humidified according to owner's waste water temperature.
Dehumidifier is divided into the first effect dehumidifier, the second effect dehumidifier ... (n-1)th imitates dehumidifier（n=2、3…）, specific dehumidification
Device number determines that preferably n=2,3 are two dehumidifiers, also referred to as two effect dehumidifying according to humidifier number.
Humidifier is not fixed with dehumidifier quantity in technique, and n effect humidifiers and n-1 effect dehumidifiers may be used（n=1、2、
3、4…）, the (n-1)th effect humidifier and (n-1)th effect dehumidifier composition the (n-1)th effect humidification-dehumidification unit, wherein air follow to be closed
Ring mode passes in and out humidifier and dehumidifier, or open mode, battery limit (BL) have the air of certain temperature through wind turbine directly into
Humidifier carries out heating humidification, then carries out cool-down dehumidification by dehumidifier, and battery limit (BL) is expelled to finally by dehumidifier air bleeding valve.
Waste-heat recovery device is positioned over last effect heat of thermal drivers 21 zero-discharge treatment system of high organic wastewater with high salt
The position of humid air cool-down dehumidification recovering condensing heat.
Using triple effect humidification and two effect dehumidifications in the present embodiment, humidifier is respectively the first effect humidifier 1, second effect humidification
Device 2 and third imitate humidifier 3, and dehumidifier is respectively the first effect dehumidifier 4 and second effect dehumidifier 5.
The pending high organic wastewater 21 with high salt with certain temperature is after filter device 10 is filtered pretreatment
It is mixed with the first effect 1 circulation fluid of humidifier preheated through heat exchanger 7,1 top of the first effect humidifier is delivered to later, through distributor
12 dispersions carry out counter current contacting with from the air that the first 1 bottom of effect humidifier enters by the filler inside the first effect humidifier 1,
Improve the mass-and heat-transfer efficiency in the first effect humidifier 1, the saturation Hot wet air heating that 1 top of the first effect humidifier is discharged（It is relatively wet
Spend RH=100%）Through fan（Or wind turbine）11 pressure-increasing units return again to the first effect humidification to the first effect dehumidifier 4, through cool-down dehumidification
Device 1 recycles.Hot wet air heating condenses the condensed water 22 of generation through pipelined to battery limit (BL) in the first effect dehumidifier 4.
Second effect 2 circulation fluid of humidifier delivers into the first effect dehumidifier 4 through pump 13 and carries out heat exchange with Hot wet air heating, the
Two effect 2 circulation fluid temperature of humidifier increase, after the concentration that the second effect 2 circulation fluid of humidifier and the first effect humidifier 1 are discharged later
High organic wastewater 21 with high salt be mixed into the top of the second effect humidifier 2.
The mixing liquid that second effect humidifier 2 top enters through distributor 12 disperse with from the second effect 2 bottom of humidifier into
The air entered carries out counter current contacting by the second effect 2 inner stuffing of humidifier, improves the mass-and heat-transfer effect in the second effect humidifier 2
Rate, the Hot wet air heating for the saturation that 2 top of the second effect humidifier is discharged（Relative humidity RH=100%）Through fan（Or wind turbine）11 superchargings
Into waste-heat recovery device.
Waste-heat recovery device includes mainly the second effect dehumidifier 5, heat pump 6, air heater 9, heat exchanger 7 and thermal component
8.The Hot wet air heating that second effect humidifier 2 is discharged（Relative humidity RH=100%）Through fan（Or wind turbine）11 superchargings enter the second effect
5 cool-down dehumidification of dehumidifier is back to the second effect humidifier 2 and recycles after heating up later by air heater 9；Hot wet air heating
The condensed water 22 of generation is condensed in the second effect dehumidifier 5 to export to out-of-bounds through pipeline, the condensation heat of generation by heat exchange into
Enter in 61 recirculated water of heat pump cold water side, condensation heat is transferred to heat-pump hot-water side 62 through heat pump 6 and follows in 61 recirculated water of heat pump cold water side
In ring water.On the one hand condensation heat in 62 recirculated water of heat-pump hot-water side is imitated humidifier 1 by 7 heat make-up first of heat exchanger and is recycled
Liquid institute calorific requirement；On the one hand pass through the heating of air heater 9 second effect, 5 outlet air of dehumidifier；On the other hand pass through radiating part
The waste heat in 62 recirculated water of heat-pump hot-water side is discharged in part 8, to ensure that heat pump 6 works normally, safeguards waste heat reclaiming process
Stablize.
High organic wastewater 21 with high salt after the cooling concentration that second effect humidifier 2 is discharged is recycled with third effect humidifier 3
Be delivered to third effect humidifier 3 top after liquid mixing, dispersion of the mixing liquid through distributor 12 and third imitate 3 bottom of humidifier into
The air entered imitates 3 inner stuffing of humidifier by third and carries out counter current contacting, the wet sky of heat being discharged from 3 top of third effect humidifier
Gas is fed directly to air.
Third is imitated the high organic wastewater 21 with high salt close to saturation that humidifier 3 is discharged and is entered in crystallization tank 14, in room temperature
Lower cooling, the crystal salt 24 generated in crystallization tank 14 enter desalination treatment process, and the coolant liquid in crystallization tank 14 is back to through pump 6
Third imitates humidifier 3.
Heat pump 6 is water source hot pump in low temp or water source medium temperature heat pump or water source high-temperature heat pump；Thermal component 8 is air-cooled cold water
Unit or water-cooled cold water unit or other can be used in heat dissipation equipment or unit；Filler is that mellapak packing or net ripple are filled out
Material or grid packing or other fillers to conduct heat conducive to gas-liquid mass transfer.
The present invention is described in detail above by specific and preferred embodiment, but those skilled in the art should be bright
In vain, the invention is not limited in embodiment described above, all within the spirits and principles of the present invention, made by it is any modification,
Equivalent replacement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of thermal drivers high organic wastewater Zero-discharge treating process with high salt, includes the following steps：
Step（1）, the pending high organic wastewater with high salt with certain temperature after filtering pre-processes with it is pre- through heat exchanger
First effect humidifier circulation fluid mixing of heat, is delivered to the first effect humidifier later, through distributor disperse with from described the
The filler that the air that one effect humidifier bottom enters is imitated by described first inside humidifier carries out counter current contacting；First effect
The saturation Hot wet air heating being discharged at the top of humidifier（Relative humidity RH=100%）Through fan（Or wind turbine）Pressure-increasing unit to the first effect subtracts
Wet device returns again to the first effect humidifier through cool-down dehumidification and recycles；Hot wet air heating is cold in the first effect dehumidifier
The solidifying condensed water generated is through pipelined to battery limit (BL)；
Step（2）, the second effect humidifier circulation fluid delivers into the first effect dehumidifier through pump and Hot wet air heating carries out hot friendship
It changes, the second effect humidifier circulation fluid temperature increases, and the second effect humidifier circulation fluid imitates humidifier row with described first later
High organic wastewater with high salt after the concentration gone out is mixed at the top of the second effect humidifier；
Step（3）, described second, which imitates the mixing liquid entered at the top of humidifier, disperses and imitates from described second to humidify through distributor
The air that device bottom enters imitates humidifier inner stuffing by described second and carries out counter current contacting, the second effect humidifier top
The Hot wet air heating of the saturation of discharge（Relative humidity RH=100%）Through fan（Or wind turbine）Supercharging enters waste-heat recovery device；
Step（4）, the Hot wet air heating of the second effect humidifier discharge（Relative humidity RH=100%）Through fan（Or wind turbine）Supercharging
Into the second effect dehumidifier cool-down dehumidification in the waste-heat recovery device, pass through the air in the waste-heat recovery device later
The second effect humidifier is back to after heater heating to recycle；Hot wet air heating condenses production in the second effect dehumidifier
Raw condensed water is exported through pipeline to out-of-bounds, and the condensation heat of generation enters the heat pump in the waste-heat recovery device by heat exchange
In cold water side recirculated water, condensation heat is transferred to heat-pump hot-water side recirculated water through the heat pump in the heat pump cold water side recirculated water
In；
On the one hand condensation heat in the recirculated water of heat-pump hot-water side passes through the heat exchanger heat make-up institute in the waste-heat recovery device
The first effect humidifier circulation fluid institute calorific requirement is stated, the second effect dehumidifier outlet is on the one hand heated by the air heater
On the other hand the waste heat in the recirculated water of the heat-pump hot-water side is discharged in air by thermal component；
Step（5）, described second imitates the high organic wastewater with high salt after the cooling concentration of humidifier discharge, adds with third effect
It is delivered to after wet device circulation fluid mixing at the top of the third effect humidifier, dispersion of the mixing liquid through distributor is imitated with the third
The air that humidifier bottom enters imitates humidifier inner stuffing by the third and carries out counter current contacting, imitates and humidifies from the third
The Hot wet air heating being discharged at the top of device is fed directly to air；
Step（6）, the high organic wastewater with high salt close to saturation state of third effect humidifier discharge enters in crystallization tank,
Cool down at room temperature, the crystal salt generated in the crystallization tank enters desalination treatment process, the coolant liquid warp in the crystallization tank
Pump is back to the third effect humidifier.
2. a kind of thermal drivers high organic wastewater Zero-discharge treating process with high salt according to claim 1, it is characterised in that：It is whole
In a technique, (n-1)th effect humidification-of the high organic wastewater with high salt in the (n-1)th effect humidifier and the (n-1)th effect dehumidifier composition
Circular treatment is carried out in dehumidification unit（n≥2）；Humidifier quantity is n（n≥2）, dehumidifier quantity is n-1（n≥2）.
3. a kind of thermal drivers high organic wastewater Zero-discharge treating process with high salt according to claim 2, it is characterised in that：Institute
It states air and humidifier and dehumidifier is passed in and out by closed circulation mode.
4. a kind of thermal drivers high organic wastewater Zero-discharge treating process with high salt according to claim 3, it is characterised in that：Institute
Air is stated when passing in and out humidifier and dehumidifier, independent air can also be selected to open wide mode, battery limit (BL) air is direct through wind turbine
It is expelled to battery limit (BL) into the (n-1)th effect humidifier, then by the (n-1)th effect dehumidifier air bleeding valve.
5. a kind of thermal drivers high organic wastewater Zero-discharge treating process with high salt according to claim 2, it is characterised in that：It is right
N-1 effects humidification-dehumidification unit that high organic wastewater with high salt is handled can be one, or multiple to repeat list
The combination of member；Wherein, the n-th effect humidifier is independent humidifying unit.
6. a kind of thermal drivers high organic wastewater Zero-discharge treating process with high salt according to claim 2, it is characterised in that：Institute
State the (n-1)th effect humidification-dehumidification unit (n-1)th effect dehumidifier in Hot wet air heating by the waste-heat recovery device carry out cooling remove
Wet and condensation heat recycling.
7. a kind of thermal drivers high organic wastewater Zero-discharge treating process with high salt according to claim 2, it is characterised in that：Institute
High organic wastewater with high salt in the n-th effect humidifier is stated at the top of the n-th humidifier to enter, by distributor be distributed in filler surface with
The air entered from the n-th humidifier bottom carries out countercurrent mass transfer heat transfer.
8. a kind of thermal drivers high organic wastewater Zero-discharge treating process with high salt according to claim 2, it is characterised in that：Institute
It states the liquid that air enters with top in the n-th effect humidifier and passes through mellapak packing（Or corrugated wire gauze packing or grid packing）It carries out
Counter current contacting.
9. a kind of thermal drivers high organic wastewater Zero-discharge treating process with high salt according to claim 2, it is characterised in that：It is empty
Gas, which is pressurized by fan (or wind turbine) from the n-th effect humidifier bottom, to be entered.
10. a kind of thermal drivers high organic wastewater Zero-discharge treating process with high salt according to claim 1, it is characterised in that：
The certain temperature of pending high organic wastewater with high salt is 20-100 DEG C or more.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113440984A (en) * | 2021-06-08 | 2021-09-28 | 威海金宏科技有限公司 | Waste water recovery process and system based on hot flue gas and adsorbent |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103833094A (en) * | 2014-03-18 | 2014-06-04 | 江苏星瑞化工工程科技有限公司 | Method for treating high-salinity wastewater |
| WO2017007295A1 (en) * | 2015-07-03 | 2017-01-12 | Universite Internationale De Rabat | System for producing fresh water by multiple-effect humidification-dehumidification |
| CN206027114U (en) * | 2016-08-26 | 2017-03-22 | 创源科瑞环保科技（北京）有限公司 | Humidification dehumidification system |
| CN106673096A (en) * | 2016-12-20 | 2017-05-17 | 南京工业大学 | Electroplating wastewater treatment system with latent heat recovery and air circulation evaporation separation functions for heat pump |
| CN106966462A (en) * | 2017-04-25 | 2017-07-21 | 东莞理工学院 | A kind of multistage seawater desalting coupled system |
| CN107029446A (en) * | 2017-03-02 | 2017-08-11 | 南京航空航天大学 | Double caloics couple solution condensing crystallizing system and method |
-
2018
- 2018-05-17 CN CN201810473688.3A patent/CN108439512B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103833094A (en) * | 2014-03-18 | 2014-06-04 | 江苏星瑞化工工程科技有限公司 | Method for treating high-salinity wastewater |
| WO2017007295A1 (en) * | 2015-07-03 | 2017-01-12 | Universite Internationale De Rabat | System for producing fresh water by multiple-effect humidification-dehumidification |
| CN206027114U (en) * | 2016-08-26 | 2017-03-22 | 创源科瑞环保科技（北京）有限公司 | Humidification dehumidification system |
| CN106673096A (en) * | 2016-12-20 | 2017-05-17 | 南京工业大学 | Electroplating wastewater treatment system with latent heat recovery and air circulation evaporation separation functions for heat pump |
| CN107029446A (en) * | 2017-03-02 | 2017-08-11 | 南京航空航天大学 | Double caloics couple solution condensing crystallizing system and method |
| CN106966462A (en) * | 2017-04-25 | 2017-07-21 | 东莞理工学院 | A kind of multistage seawater desalting coupled system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113440984A (en) * | 2021-06-08 | 2021-09-28 | 威海金宏科技有限公司 | Waste water recovery process and system based on hot flue gas and adsorbent |
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