CN107098423A - A kind of method for the high-salinity wastewater zero-emission for making to produce in industrial production - Google Patents
A kind of method for the high-salinity wastewater zero-emission for making to produce in industrial production Download PDFInfo
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- CN107098423A CN107098423A CN201710351989.4A CN201710351989A CN107098423A CN 107098423 A CN107098423 A CN 107098423A CN 201710351989 A CN201710351989 A CN 201710351989A CN 107098423 A CN107098423 A CN 107098423A
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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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- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a kind of method for the high-salinity wastewater zero-emission for making to produce in industrial production, high-salt wastewater is passed through in flue gas processing device, moisture in the high-salt wastewater is through flue gas processing device heating evaporating completely formation vapor, pollutant in the high-salt wastewater is converted into solid state crystallization salt, and then the vapor, which is passed through in desulfuration absorbing tower, is used for desulphurization reaction.The present invention enables the method for the high-salinity wastewater zero-emission produced in industrial production to fully achieve the zero-emission of the high-salt wastewater produced in industrial production, reaches the effect of energy-saving and emission-reduction.
Description
Technical field
Technical field is utilized the present invention relates to Sewage treatment, it is more particularly to a kind of the high salt produced in industrial production is given up
The method of water zero discharge.
Background technology
In recent years, industrialize with China, the quickening of Urbanization Progress process, shortage of water resources and environmental constraints with it is economical
Contradiction between development, country is just progressively implementing increasingly stricter energy-saving and emission-reduction policy and pollutant emission control
Standard.Country will continue to increase energy-saving and emission-reduction dynamics during " 12 ", carries out clean manufacturing energetically, develops a circular economy and give birth to
State civilization construction, it is desirable to which enterprise changes to the development pattern of " low input, low consumption, high efficiency, low emission ", " zero-emission " management
Theory is also being penetrated into the environmentally friendly management system of enterprise gradually.
With industry and the increasing and national very big attention to energy-saving and emission-reduction of human lives' draining, how to realize
The recycling and environment protection emission of waste water and waste liquid, as focus of concern.Wastewater treatment utilizes physics, chemistry and biology
Method is handled waste water, makes purification of waste water, reduces pollution, so that reaching Sewage treatment, multiplexing, recycles water resource.
It is useless to removing frequently with following several method in the prior art containing impurity such as substantial amounts of salt, sulphur in industrial wastewater
Salt in water：
(1) ion-exchange demineralization
Ion exchange refers to when ion exchange resin meets water, with similar electric charge in the ion and water that can have itself
The method that ion swaps reaction.The method is higher to water quality requirement, particularly the requirement of salt content, is primarily adapted for use in removal electricity
Conductance is less than the salt in 800 water of the μ S/cm without pollution, the major advantage of ion-exchange be desalting efficiency it is high (by it is cloudy,
The electrical conductivity of water outlet is generally less than 5 μ S/cm after cation bed and mixed bed).If using the electrical conductivity mistake of ion-exchange demineralization brackish water
Height can cause the frequent regeneration of ion exchange resin, and the soda acid amount consumed surges, and processing cost is greatly increased；If contained
Salt solution is carried out before ion exchange resin treatment, and oils, bacterium or algae substances remove undesirable, it is easy to make resin dirty
It is stifled.
(2) electroosmose process desalination
The general principle of electroosmose process desalination be anions and canons in water in the presence of applying direct current electric field, to certain
Direction migration, using selective penetrated property of the anions and canons exchange membrane to water intermediate ion, arrive the ion-transfer in a part of water
In another part water, so as to reach the purpose of desalination desalination.Electroosmose process desalination power consumption is higher, and ton water outlet about needs 6 degree of electricity,
Water rate is relatively low, and about 60% or so, and also electrodialytic electrode is easy to breakdown, and maintenance and repair is costly.
(3) desalination with nanofiltration membrane
Desalination with nanofiltration membrane is a kind of pressure-driven membrane separating process between counter-infiltration and ultrafiltration, its water outlet desalination rate
90% or so.It is higher for the higher salt clearance of the relative molecular masses such as containing sulfate radicals, nitrate anion, and for chlorate anions
Poor etc. removal effect, clearance is typically in 50%-70%.
(4) hyperfiltration desalination
Reverse osmosis membrane technology is the class membrane separating process using permeable pressure head as motive force.This method can remove 95%
Salt above, it is with strong applicability, there is higher clearance to various types of salts.Reverse osmosis membrane is to influent quality requirement
Higher, the concentration requirement particularly to Organic substance in water and suspension is higher, therefore generally counter-infiltration and ultrafiltration are used in combination,
Turbidity is further removed using ultra-filtration process, so that the problem of effectively solving fouling membrane.Reverse osmosis water after desalination can conduct
Recycle-water is utilized, and water-saving result is notable, and energy consumption is only electrodialytic 1/2, the 1/40 of distillation technique, while having energy-conservation
Advantage.But the reverse osmosis concentrated effective treatment technology of olighydria, and still need to outer draining.
The content of the invention
It is an object of the invention to provide a kind of method for the high-salinity wastewater zero-emission for making to produce in industrial production, with solution
The problem of prior art is present is stated, the high-salt wastewater produced in industrial production is all purified, realizes that high salt is given up in industrial system
The zero-emission of water.
To achieve the above object, the invention provides following scheme：Present invention offer is a kind of to make what is produced in industrial production
The method of high-salinity wastewater zero-emission, high-salt wastewater is passed through in flue gas processing device, and the moisture in the high-salt wastewater is through described
Pollutant in flue gas processing device heating evaporating completely formation vapor, the high-salt wastewater is converted into solid state crystallization salt, so
The vapor, which is passed through in desulfuration absorbing tower, afterwards is used for desulphurization reaction.
Preferably, when the discharge capacity of high-salt wastewater in the unit interval in industrial production is more than the flue gas processing device unit
During the amount for the high-salt wastewater that the time can evaporate, the high-salt wastewater is set to be passed through the cigarette again after being concentrated without fouling enrichment facility
In Flash Gas Compression Skid System.
Preferably, described is low-temperature multi-effect evaporation concentration device without fouling enrichment facility.
Preferably, the heating steam of the low-temperature multi-effect evaporation concentration device uses the afterheat steam in industrial production.
Preferably, the clear water low-temperature multi-effect evaporation concentration device generated during the high-salt wastewater is concentrated
It is passed through in industrial process waters system.
Preferably, remaining vapor in the low-temperature multi-effect evaporation concentration device is passed through in the desulfuration absorbing tower and used
In desulphurization reaction.
Preferably, head end is provided with air preheater in the flue gas processing device, and the flue gas that more than 300 DEG C of temperature is through institute
State after air preheater and the mixed flue gas of more than 110 DEG C of temperature is mixed to form with air, with the mixed flue gas to the high salt
Waste water is heated.
Preferably, the flue gas processing device end is provided with deduster, and the solid state crystallization is caught with the deduster
Flying dust in salt and the flue gas.
It is following that the present invention makes the method for the high-salinity wastewater zero-emission produced in industrial production achieve compared with prior art
Beneficial effect：
The present invention enables the method for the high-salinity wastewater zero-emission produced in industrial production to fully achieve production in industrial production
The zero-emission of raw high-salt wastewater, moreover it is possible to make full use of the afterheat steam resource in industrial enterprise, reach energy-saving effect；Using many
Evaporation concentration device is imitated, Waste water concentrating efficiency is increased substantially, device fouling and the situation of corrosion is mitigated significantly.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment
The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the present invention
Example, for those of ordinary skill in the art, on the premise of not paying creative work, can also be obtained according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 makes the schematic flow sheet of the method for the high-salinity wastewater zero-emission produced in industrial production for the present invention；
The flow that smoke evaporative is handled in the method for the high-salinity wastewater zero-emission that Fig. 2 makes to produce in industrial production for the present invention
Schematic diagram；
Wherein, in Q- industrial productions in the unit interval high-salt wastewater discharge capacity, Q0- flue gas processing device unit interval energy
The amount of the high-salt wastewater enough evaporated.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
It is existing to solve it is an object of the invention to provide a kind of method for the high-salinity wastewater zero-emission for making to produce in industrial production
The problem of with the presence of technology, the high-salt wastewater produced in industrial production is all purified, high-salt wastewater in industrial system is realized
Zero-emission.
The present invention provides a kind of method for the high-salinity wastewater zero-emission for making to produce in industrial production, and high-salt wastewater is passed through into cigarette
In Flash Gas Compression Skid System, the moisture in the high-salt wastewater is through flue gas processing device heating evaporating completely formation vapor, institute
State the pollutant in high-salt wastewater and be converted into solid state crystallization salt, then the vapor, which is passed through in desulfuration absorbing tower, is used for desulfurization
Reaction.
The present invention enables the method for the high-salinity wastewater zero-emission produced in industrial production to fully achieve production in industrial production
The zero-emission of raw high-salt wastewater, reaches the effect of energy-saving and emission-reduction.
In order to facilitate the understanding of the purposes, features and advantages of the present invention, it is below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is further detailed explanation.
Embodiment one：
The present embodiment provides a kind of method for the high-salinity wastewater zero-emission for making to produce in industrial production, as shown in figure 1, working as work
The height that the discharge capacity Q of high-salt wastewater can evaporate less than or equal to the flue gas processing device unit interval in the unit interval in industry production
The amount Q of salt waste water0When, smoke evaporative processing is directly carried out to high-salt wastewater；
It can be steamed when the discharge capacity Q of high-salt wastewater in the unit interval in industrial production is more than the flue gas processing device unit interval
The amount Q of the high-salt wastewater of hair0When, high-salt wastewater is evaporated again at concentration after being concentrated through low-temperature multi-effect evaporation concentration device
Reason；
The heating steam of low-temperature multi-effect evaporation concentration device uses the afterheat steam in industrial production, afterheat steam and high salt
Waste water is exchanged heat in low-temperature multi-effect evaporation concentration device, and most of afterheat steam, which is condensed, after heat exchange to form clear water, high salt and give up
Moisture evaporation in water, which forms steam and condensed, forms clear water, and the clear water generated in above-mentioned low-temperature multi-effect evaporation concentration device is led to
Enter and recycled in industrial process waters system；In addition, also having some vapor not coagulate in low-temperature multi-effect evaporation concentration device
Form water, the non-condensing steam in this part, which is passed through in desulfuration absorbing tower, is used for desulphurization reaction；Steamed with the waste heat in industrial production
Vapour can fully be reclaimed to the afterheat steam in industrial production, utilized as the heating steam of low-temperature multi-effect evaporation concentration device,
Both the discharge for having reduced afterheat steam in industrial production turn avoid and additionally set heating source for low-temperature multi-effect evaporation concentration device,
Cost is reduced, the effect of energy-saving and emission-reduction has been reached.
In above-mentioned smoke evaporative processing procedure, high-salt wastewater or condensed water are passed through in flue gas processing device, such as Fig. 2 institutes
Show, head end is provided with air preheater in flue gas processing device, the flue gas that more than 300 DEG C of temperature after air preheater with air
The mixed flue gas of more than 110 DEG C of temperature is mixed to form, the too high high-temperature flue gas of temperature and air are mixed to form after mixed flue gas
The heating effect to high-salt wastewater/condensed water can not influenceed by carrying out heating on high-salt wastewater/condensed water with mixed flue gas again
On the basis of increase the amount of flue gas for heating, high-temperature flue gas is made full use of so as to reach；In flue gas processing device,
Moisture evaporating completely formation vapor, pollutant in high-salt wastewater/condensed water condense to form solid state crystallization salt, in fume treatment
Device end is additionally provided with deduster, and vapor is passed into desulfuration absorbing tower by deduster and participates in desulphurization reaction, and dedusting
Device can then catch the flying dust in solid state crystallization salt and flue gas, it is ensured that the cleaning of vapor.So far, complete what is produced in industrial production
The recycling of high-salt wastewater, fully achieves the zero-emission of the high-salt wastewater produced in industrial production, reaches the protection to environment.
It should be noted that the device concentrated in the present invention to high-salt wastewater is not steamed with the low-temperature multi-effect of the present embodiment
Hair enrichment facility is limited, it would however also be possible to employ other devices or technology are concentrated to high-salt wastewater, as long as can realize that the present invention is right
The purpose that the excessive high-salt wastewater of discharge capacity in unit interval is concentrated, equally, low-temperature multi-effect evaporates in the present invention
The quantity of enrichment facility and flue gas processing device is not limited with the present embodiment, from several low-temperature multi-effect evaporation concentration devices simultaneously
Connection is concentrated to high-salt wastewater, multiple flue gas processing devices it is in parallel processing is evaporated to high-salt wastewater/condensed water all should be
Within protection scope of the present invention.
Specific case is applied in the present invention to be set forth the principle and embodiment of the present invention, above example
Illustrate the method and its core concept for being only intended to help to understand the present invention；Simultaneously for those of ordinary skill in the art, according to
According to the thought of the present invention, it will change in specific embodiments and applications.In summary, this specification content
It should not be construed as limiting the invention.
Claims (8)
1. a kind of method for the high-salinity wastewater zero-emission for making to produce in industrial production, it is characterised in that：High-salt wastewater is passed through cigarette
In Flash Gas Compression Skid System, the moisture in the high-salt wastewater is through flue gas processing device heating evaporating completely formation vapor, institute
State the pollutant in high-salt wastewater and be converted into solid state crystallization salt, then the vapor, which is passed through in desulfuration absorbing tower, is used for desulfurization
Reaction.
2. the method for the high-salinity wastewater zero-emission according to claim 1 for making to produce in industrial production, it is characterised in that：When
The height that the discharge capacity of high-salt wastewater can evaporate more than the flue gas processing device unit interval in the unit interval in industrial production
During the amount of salt waste water, the high-salt wastewater is set to be passed through again in the flue gas processing device after being concentrated without fouling enrichment facility.
3. the method for the high-salinity wastewater zero-emission according to claim 2 for making to produce in industrial production, it is characterised in that：Institute
No fouling enrichment facility is stated for low-temperature multi-effect evaporation concentration device.
4. the method for the high-salinity wastewater zero-emission according to claim 3 for making to produce in industrial production, it is characterised in that：Institute
The heating steam of low-temperature multi-effect evaporation concentration device is stated using the afterheat steam in industrial production.
5. the method for the high-salinity wastewater zero-emission that making according to claim 3 or 4 produces in industrial production, its feature exists
In：The clear water that the low-temperature multi-effect evaporation concentration device is generated during the high-salt wastewater is concentrated is passed through industrial production
In water system.
6. the method for the high-salinity wastewater zero-emission according to claim 5 for making to produce in industrial production, it is characterised in that：Will
Remaining vapor, which is passed through in the desulfuration absorbing tower, in the low-temperature multi-effect evaporation concentration device is used for desulphurization reaction.
7. the method for the high-salinity wastewater zero-emission according to claim 1 for making to produce in industrial production, it is characterised in that：Institute
State head end in flue gas processing device and be provided with air preheater, the flue gas that more than 300 DEG C of temperature after the air preheater with
Air is mixed to form the mixed flue gas of more than 110 DEG C of temperature, and the high-salt wastewater is heated with the mixed flue gas.
8. the method for the high-salinity wastewater zero-emission according to claim 7 for making to produce in industrial production, it is characterised in that：Institute
State flue gas processing device end and be provided with deduster, flying in the solid state crystallization salt and the flue gas is caught with the deduster
Dirt.
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| CN201710351989.4A CN107098423A (en) | 2017-05-18 | 2017-05-18 | A kind of method for the high-salinity wastewater zero-emission for making to produce in industrial production |
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| CN201710351989.4A CN107098423A (en) | 2017-05-18 | 2017-05-18 | A kind of method for the high-salinity wastewater zero-emission for making to produce in industrial production |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102992427A (en) * | 2012-12-12 | 2013-03-27 | 众和海水淡化工程有限公司 | Wastewater zero-discharge treatment system |
| CN203807290U (en) * | 2014-04-28 | 2014-09-03 | 盛发环保科技（厦门）有限公司 | Novel waste heat utilization zero release device of desulfurization waste water |
| CN104445782A (en) * | 2014-11-27 | 2015-03-25 | 杨沈忠 | Wastewater zero discharging device and working method thereof |
| CN104926008A (en) * | 2014-03-18 | 2015-09-23 | 王辛平 | Wet desulfurization wastewater zero emission process and device thereof |
| CN105481157A (en) * | 2015-12-18 | 2016-04-13 | 王辛平 | Method for zero emission treatment of desulfurization waste water based on flue gas waste heat evaporation |
| CN106044908A (en) * | 2016-06-29 | 2016-10-26 | 清华大学 | Evaporation treatment process of high-salinity organic waste water |
-
2017
- 2017-05-18 CN CN201710351989.4A patent/CN107098423A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102992427A (en) * | 2012-12-12 | 2013-03-27 | 众和海水淡化工程有限公司 | Wastewater zero-discharge treatment system |
| CN104926008A (en) * | 2014-03-18 | 2015-09-23 | 王辛平 | Wet desulfurization wastewater zero emission process and device thereof |
| CN203807290U (en) * | 2014-04-28 | 2014-09-03 | 盛发环保科技（厦门）有限公司 | Novel waste heat utilization zero release device of desulfurization waste water |
| CN104445782A (en) * | 2014-11-27 | 2015-03-25 | 杨沈忠 | Wastewater zero discharging device and working method thereof |
| CN105481157A (en) * | 2015-12-18 | 2016-04-13 | 王辛平 | Method for zero emission treatment of desulfurization waste water based on flue gas waste heat evaporation |
| CN106044908A (en) * | 2016-06-29 | 2016-10-26 | 清华大学 | Evaporation treatment process of high-salinity organic waste water |
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