CN108046486A - A kind of desulfurization wastewater Zero emission device - Google Patents
A kind of desulfurization wastewater Zero emission device Download PDFInfo
- Publication number
- CN108046486A CN108046486A CN201711342100.2A CN201711342100A CN108046486A CN 108046486 A CN108046486 A CN 108046486A CN 201711342100 A CN201711342100 A CN 201711342100A CN 108046486 A CN108046486 A CN 108046486A
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- Prior art keywords
- anode
- desulfurization wastewater
- desulfurizer
- cathode
- zero emission
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4676—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electroreduction
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The present invention relates to a kind of desulfurization wastewater Zero emission devices, are related to desulfurization wastewater processing technology field, solve the technical issues of desulfurization wastewater zero discharge treatment in the prior art is difficult.A kind of desulfurization wastewater Zero emission device of the present invention, including equipment for separating liquid from solid and recycling unit, the waste water of desulfurizer enters the input terminal of equipment for separating liquid from solid, in equipment for separating liquid from solid, slightly solubility substance returns to be handled again in desulfurizer, and soluble high-salt wastewater, which then enters in recycling unit, to be electrochemically reacted；And the sodium hydroxide lye and fresh water generated after recycling treatment can reuse in desulfurization process, the chlorine of generation then can be used for power plant's cooling circulating water sterilization algae removal, therefore entire processing procedure can realize zero-emission, its clean-up effect is made to reach target.
Description
Technical field
The present invention relates to desulfurization wastewater processing technology field, a kind of particularly desulfurization wastewater Zero emission device.
Background technology
Due to its, applicable coal scope is wide, desulfuration efficiency is high, absorbent utilization rate is high, operation rate for gypsum desulfurization
A variety of advantages such as high and work reliability height, have become the preferential choosing of selection flue gas desulphurization technique both at home and abroad
It selects.
It is high with salt content height, hardness height and COD (COD) by the waste water that gypsum desulfurization generates, therefore such as
Fruit is directly discharged, then environment can be caused greatly to pollute；And current conventional physico-chemical process is used to handle it,
It is high not only to invest big operating cost, and its processing procedure still has the generation of secondary wastewater, it is expected net therefore, it is difficult to reach
Change effect.
The content of the invention
The present invention provides a kind of desulfurization wastewater Zero emission device, for solving desulfurization wastewater zero-emission in the prior art
Put the technical issues of processing is difficult.
The present invention provides a kind of desulfurization wastewater Zero emission device, including equipment for separating liquid from solid and recycling unit；
The input terminal of the equipment for separating liquid from solid is connected with the waste water output terminal of desulfurizer, the equipment for separating liquid from solid
High-salt wastewater output terminal is connected with the input terminal of the recycling unit；
The fresh water output terminal and lye output terminal of the recycling unit are connected respectively with the desulfurizer.
In one embodiment, the equipment for separating liquid from solid includes micron-sized microfiltration of ceramic membrane device, the ceramic membrane
The arrival end of microstrainer is connected with the waste water tank of the desulfurizer；
The output terminal of the microfiltration of ceramic membrane device respectively with the high-salt wastewater entrance of the recycling unit and the desulfurization
The first entrance of device is connected.
In one embodiment, the recycling unit includes the membrane stack that redox reaction occurs；
The membrane stack includes cathode end plate, anode end plate and between the cathode end plate and the anode end plate
Cathode chamber and anode chamber；
The lye generated in the cathode chamber is delivered to the second entrance of the desulfurizer；It is generated in the anode chamber
Gas is delivered to power plant and carries out cooling circulating water sterilization algae removal processing, and the fresh water generated in the anode chamber is delivered to the desulfurization
3rd entrance of device.
In one embodiment, the cathode chamber and the anode chamber include anode membrane, and the anode membrane is described the moon
Pole room and the anode chamber share.
In one embodiment, the cathode chamber further includes the cathode plate arranged successively and first band net partition plate, described
Cathode plate is located at close to the one side of the cathode end plate；
The anode chamber further includes the anode plate arranged successively and the second band net partition plate, and the anode plate is located at close to described
The one side of anode end plate.
In one embodiment, the microfiltration of ceramic membrane device includes housing and is arranged on multiple potteries of the enclosure interior
Porcelain membrane tube；
The ceramic-film tube is installed along the axial direction of the housing, and multiple ceramic-film tubes are uniform in the housing
It sets.
In one embodiment, the ceramic-film tube includes the porous support layer, the transition zone that set gradually from outside to inside
And separating layer, the aperture of the porous support layer are more than the aperture of the transition zone, the aperture of the transition zone is more than described point
The aperture of absciss layer.
In one embodiment, first outlet and second outlet, the first outlet and institute are provided on the housing
It states high-salt wastewater entrance to be connected, the second outlet is connected with the first entrance.
Compared with prior art, the advantage of the invention is that：The waste water of desulfurizer enters the input of equipment for separating liquid from solid
End, in equipment for separating liquid from solid, slightly solubility substance return desulfurizer in is handled again, soluble high-salt wastewater then into
Enter in recycling unit and be electrochemically reacted；And the sodium hydroxide lye and fresh water generated after recycling treatment can be
It is reused in desulfurization process, the chlorine of generation then can be used for power plant's cooling circulating water sterilization algae removal, therefore entire processing procedure
It can realize zero-emission, its clean-up effect is made to reach target.
Description of the drawings
The invention will be described in more detail below based on embodiments and refering to the accompanying drawings.
Fig. 1 is a kind of structure diagram of desulfurization wastewater Zero emission device of the present invention.
In the accompanying drawings, identical component uses identical reference numeral.Attached drawing is not drawn according to actual ratio.
Reference numeral：
1- equipment for separating liquid from solid；2- recycling units；3- desulfurizers；
11- control valves；12- microfiltration of ceramic membrane devices；13- first outlets；
14- second outlets；21- babinets；22- membrane stacks；
23- power supplys；24- high-salt wastewater entrances；31- first entrances；
32- second entrances；The 3rd entrances of 33-；34- waste water tanks；
121- housings；122- ceramic-film tubes；The extreme plates of 221-；
222- anode end plates；223- cathode chambers；224- anode chambers；
225- anode membranes；226- cathode plates；227- first band net partition plates；
228- anode plates；229- second is with net partition plate.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings.
As shown in Figure 1, the present invention provides a kind of desulfurization wastewater Zero emission device, including equipment for separating liquid from solid 1 and recycling
Device 2.Wherein, the input terminal of equipment for separating liquid from solid 1 is connected with the waste water output terminal of desulfurizer 3, the height of equipment for separating liquid from solid 1
Salt waste water output terminal is connected with the input terminal of recycling unit 2；Fresh water output terminal and lye the output terminal difference of recycling unit 2
It is connected with desulfurizer 3.
From figure 1 it appears that the waste water of desulfurizer 3 enters equipment for separating liquid from solid 1, it is difficult in equipment for separating liquid from solid 1
Soluble substance is able to separation concentration, and concentrate is back in desulfurizer 3；It is carried out into the high-salt wastewater in recycling unit 2
Electrochemical reaction, wherein, the lye (that is, sodium hydroxide solution) of generation into desulfurizer, as additive for divalent from
The precipitation of son provides hydroxide ion；The chlorine of generation enters power plant and carries out cooling circulating water sterilization algae removal processing；What is generated is light
Water, which enters in desulfurizer 3, to be recycled；Therefore between equipment for separating liquid from solid 1, recycling unit 2 and desulfurizer 3
Form the second circulation approach of fluid.
The equipment for separating liquid from solid 1 in the present invention is specifically described first.
Equipment for separating liquid from solid 1 includes micron-sized microfiltration of ceramic membrane device 12, the arrival end of microfiltration of ceramic membrane device 12 and desulfurization
The waste water tank 34 of device 3 is connected.The first output terminal and second output terminal of microfiltration of ceramic membrane device 12 respectively with recycling unit 2
High-salt wastewater entrance 24 is connected with the first entrance 31 of desulfurizer 3.
Wherein, microfiltration of ceramic membrane device 12 includes housing 121 and the multiple ceramic-film tubes 122 being arranged on inside housing 121；Pottery
Porcelain membrane tube 122 is installed along the axial direction of housing 121, and multiple ceramic-film tubes 122 are uniformly arranged in housing 121.
Ceramic-film tube 122 includes the porous support layer, transition zone and the separating layer that set gradually from outside to inside, porous support layer
Aperture be more than the aperture of transition zone, the aperture of transition zone is more than the aperture of separating layer.
First outlet 13 and second outlet 14 are provided on housing 121, first outlet 13 is connected with high-salt wastewater entrance 24,
Second outlet 14 is connected with first entrance 31.Control valve is provided on the pipeline that first outlet 13 is connected with high-salt wastewater entrance 24
11, for controlling the flowing of liquid, cut-out and throttling action are mainly played on pipeline.
As shown in Figure 1, in filter process, the suspension to be separated flow at high speed in ceramic-film tube 122 is pumped in raw material
Under the driving of pressure, the muddy concentrate of the composition containing bivalent ions macromolecular is left by ceramic-film tube 122 and is delivered to desulfurization
Continue to react in device 3, soluble high-salt wastewater, which enters in recycling unit 2, to be electrochemically reacted.
Further, the recycling unit 2 in the present invention is specifically described.
Recycling unit 2 includes babinet 21, the membrane stack 22 for being used to occur redox reaction being arranged inside babinet 21
And the power supply 23 being connected with membrane stack 22；Membrane stack 22 includes cathode end plate 221, anode end plate 222 and positioned at cathode end plate 221
Cathode chamber 223 and anode chamber 224 between anode end plate 222.
Specifically, the lye generated in cathode chamber 223 is delivered to the second entrance 32 of desulfurizer 3；It is produced in anode chamber 224
Raw gas is delivered to power plant and carries out cooling circulating water sterilization algae removal processing, and the fresh water generated in anode chamber 224 is delivered to desulfurization
3rd entrance 33 of device 3.
Cathode chamber 223 and anode chamber 224 include anode membrane 225, and anode membrane 225 is common for cathode chamber 223 and anode chamber 224
With.
Cathode chamber 223 further includes the cathode plate 226 arranged successively and first band net partition plate 227, and cathode plate 226 is located at close
The one side of cathode end plate 221；Anode chamber 224 further includes the 228 and second band net partition plate 229 of anode plate arranged successively, anode plate
228 are located at close to the one side of anode end plate 222.
As shown in Figure 1, the set-up mode of membrane stack 22 is from left to right followed successively by：Cathode end plate 221, cathode plate 226, first band
Net partition plate 227, the 225, second band net of anode membrane partition plate 229, anode plate 228 and anode end plate 222；Wherein, cathode plate 226, first
Band net partition plate 227 and anode membrane 225 form cathode chamber 223；The 225, second band net of anode membrane partition plate 229 and anode plate 228 form anode
Room 224.
Wherein, the anode of power supply 23 is connected with anode plate 228, and the cathode of power supply 23 is connected with cathode plate 226.
Process into the anti-raw reaction of concentrated water of membrane stack 22 is：Flow through the concentrated water of anode chamber 224, cation transport to cathode
In room 223, output lye (that is, sodium hydroxide solution)；Different anion generates gas in anode chamber 224；In anode chamber 224
In organic matter it is oxidized after degradation.
The specific work process of the desulfurization wastewater Zero emission device of the present invention is as follows：
First, the waste water of waste water tank 34 by booster pump, was carried out into microfiltration of ceramic membrane device 12 in desulfurizer 3
Filter is handled；In microfiltration of ceramic membrane device 12, the muddy concentrate of the composition containing bivalent ions macromolecular is left by ceramic-film tube 122
And be delivered in desulfurizer 3 and continue to react, it is anti-that soluble high-salt wastewater enters progress electrochemistry in recycling unit 2
It should.
Secondly, electrochemical reaction occurs into the concentrate of recycling unit 2, the lye generated in cathode chamber 223 is defeated
It send to the second entrance 32 of desulfurizer 3；Cooling cycle is carried out in the chlorine gas transfer that anode chamber 224 generates to chlorine collection system
The processing of water sterilization algae removal, the 3rd entrance 33 that desulfurizer 3 is transported in the fresh water that anode chamber 224 generates are recycled.
Therefore above-mentioned wastewater treatment process can realize zero-emission.
Although by reference to preferred embodiment, invention has been described, is not departing from the situation of the scope of the present invention
Under, various improvement can be carried out to it and component therein can be replaced with equivalent.Especially, to be rushed as long as there is no structures
Prominent, items technical characteristic mentioned in the various embodiments can be combined in any way.The invention is not limited in texts
Disclosed in specific embodiment, but all technical solutions including falling within the scope of the appended claims.
Claims (8)
1. a kind of desulfurization wastewater Zero emission device, which is characterized in that including equipment for separating liquid from solid (1) and recycling unit (2)；
The input terminal of the equipment for separating liquid from solid (1) is connected with the waste water output terminal of desulfurizer (3), the equipment for separating liquid from solid
(1) high-salt wastewater output terminal is connected with the input terminal of the recycling unit (2)；
The fresh water output terminal and lye output terminal of the recycling unit (2) are connected respectively with the desulfurizer (3).
2. desulfurization wastewater Zero emission device according to claim 1, which is characterized in that equipment for separating liquid from solid (1) bag
Include micron-sized microfiltration of ceramic membrane device (12), the arrival end of the microfiltration of ceramic membrane device (12) and giving up for the desulfurizer (3)
Water tank (34) is connected；
The output terminal of the microfiltration of ceramic membrane device (12) respectively with the high-salt wastewater entrance of the recycling unit (2) (24) and institute
The first entrance (31) for stating desulfurizer (3) is connected.
3. desulfurization wastewater Zero emission device according to claim 1 or 2, which is characterized in that recycling unit (2) bag
Include to occur the membrane stack (22) of redox reaction；
The membrane stack (22) includes cathode end plate (221), anode end plate (222) and positioned at the cathode end plate (221) and institute
State the cathode chamber (223) between anode end plate (222) and anode chamber (224)；
The lye generated in the cathode chamber (223) is delivered to the second entrance (32) of the desulfurizer (3)；The anode chamber
(224) gas generated in is delivered to power plant and carries out cooling circulating water sterilization algae removal processing, is generated in the anode chamber (224)
Fresh water is delivered to the 3rd entrance (33) of the desulfurizer (3).
4. desulfurization wastewater Zero emission device according to claim 3, which is characterized in that the cathode chamber (223) and described
Anode chamber (224) includes anode membrane (225), and the anode membrane (225) is the cathode chamber (223) and the anode chamber (224)
It shares.
5. desulfurization wastewater Zero emission device according to claim 4, which is characterized in that the cathode chamber (223) further includes
The cathode plate (226) and first band net partition plate (227) arranged successively, the cathode plate (226) are located at close to the cathode end plate
(221) one side；
The anode chamber (224) further includes the anode plate (228) arranged successively and the second band net partition plate (229), the anode plate
(228) it is located at close to the one side of the anode end plate (222).
6. desulfurization wastewater Zero emission device according to claim 2, which is characterized in that microfiltration of ceramic membrane device (12) bag
It includes housing (121) and is arranged on the internal multiple ceramic-film tubes (122) of the housing (121)；
The ceramic-film tube (122) is installed along the axial direction of the housing (121), and multiple ceramic-film tubes (122) are in institute
It states and is uniformly arranged in housing (121).
7. desulfurization wastewater Zero emission device according to claim 6, which is characterized in that the ceramic-film tube (122) includes
Porous support layer, transition zone and the separating layer set gradually from outside to inside, the aperture of the porous support layer are more than the transition
The aperture of layer, the aperture of the transition zone are more than the aperture of the separating layer.
8. desulfurization wastewater Zero emission device according to claim 7, which is characterized in that be provided on the housing (121)
First outlet (13) and second outlet (14), the first outlet (13) are connected with the high-salt wastewater entrance (24), and described
Two outlets (14) are connected with the first entrance (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711342100.2A CN108046486A (en) | 2017-12-14 | 2017-12-14 | A kind of desulfurization wastewater Zero emission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711342100.2A CN108046486A (en) | 2017-12-14 | 2017-12-14 | A kind of desulfurization wastewater Zero emission device |
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| Publication Number | Publication Date |
|---|---|
| CN108046486A true CN108046486A (en) | 2018-05-18 |
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ID=62132303
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711342100.2A Pending CN108046486A (en) | 2017-12-14 | 2017-12-14 | A kind of desulfurization wastewater Zero emission device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05131193A (en) * | 1991-10-17 | 1993-05-28 | Chubu Electric Power Co Inc | Drain water treatment facility of exhaust gas desulfurization device |
| WO2008078602A1 (en) * | 2006-12-27 | 2008-07-03 | Kurita Water Industries Ltd. | Method and apparatus for producing pure water |
| CN104478141A (en) * | 2014-12-05 | 2015-04-01 | 杭州水处理技术研究开发中心有限公司 | Power plant flue gas desulfurization wastewater treatment process |
| CN107055703A (en) * | 2017-06-02 | 2017-08-18 | 淄博格瑞水处理工程有限公司 | The high organic wastewater recycling and zero discharge processing unit of high salt |
| CN207699374U (en) * | 2017-12-14 | 2018-08-07 | 淄博格瑞水处理工程有限公司 | A kind of desulfurization wastewater Zero emission device |
-
2017
- 2017-12-14 CN CN201711342100.2A patent/CN108046486A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05131193A (en) * | 1991-10-17 | 1993-05-28 | Chubu Electric Power Co Inc | Drain water treatment facility of exhaust gas desulfurization device |
| WO2008078602A1 (en) * | 2006-12-27 | 2008-07-03 | Kurita Water Industries Ltd. | Method and apparatus for producing pure water |
| CN104478141A (en) * | 2014-12-05 | 2015-04-01 | 杭州水处理技术研究开发中心有限公司 | Power plant flue gas desulfurization wastewater treatment process |
| CN107055703A (en) * | 2017-06-02 | 2017-08-18 | 淄博格瑞水处理工程有限公司 | The high organic wastewater recycling and zero discharge processing unit of high salt |
| CN207699374U (en) * | 2017-12-14 | 2018-08-07 | 淄博格瑞水处理工程有限公司 | A kind of desulfurization wastewater Zero emission device |
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