CN207108514U - The device for mixing Nacl effluent resource and utilizing is realized using membrane separation technique - Google Patents
The device for mixing Nacl effluent resource and utilizing is realized using membrane separation technique Download PDFInfo
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Abstract
It the utility model is related to a kind of device for being realized using membrane separation technique and mixing Nacl effluent resource and utilizing, including stoste storage tank (1), the output end of the stoste storage tank (1) is connected by the first elevator pump (P1) with stripping tower (2) upper end, the material of stripping tower (2) the top output is passed through in absorption tower (3), the material of absorption tower (3) lower end outflow is entered in the first reverse osmosis unit (4) by the 3rd elevator pump (P3), the concentrated solution and weak solution of first reverse osmosis unit (4) output are separately stored in the first accumulator tank (5) and the second accumulator tank (6)；The upper end of first accumulator tank (5) is connected by pipeline with the upper end of absorption tower (3), and the 4th elevator pump (P4) is housed on the pipeline；The material of stripping tower (2) the lower end output connects nano filter membrance device (7) by pipeline.The utility model not only reduces the pollution for mixing industrial bisulfate waste liquor to environment, and required equipment is simple, and equipment easily operates, and power consumption is few, realizes the maximization recovery and the zero-emission of discarded object of resource.
Description
Technical field
Chemical wastewater treatment technical field is the utility model is related to, it is especially a kind of that mixing work is realized using membrane separation technique
The device of industry bisulfate waste liquor recycling.
Background technology
Mixing Nacl is mainly derived from caused accessory substance in chemical process, such as giving up after spent acid and salkali waste neutralization
Liquid, the waste liquid etc. after spray column water absorption acidic and alkaline gas.Wherein sodium sulphate and sodium chloride are common Nacls, at present processing
The method of waste liquid containing both salinities is usually to be concentrated by evaporation this waste liquid, and mixing salinity is filled, and is not only caused
The pollution of soil and water body, waste substantial amounts of salinity resource, moreover, concentrator power consumption is larger, and when running danger because
Element is more, is unfavorable for the area that the energy is less or environment is bad.
At present, disclosed patent (Publication No.：CN201610361741), it is noted that a kind of desulfurization wastewater prepares sulphur
The method of sour sodium and sodium chloride, mainly the two is separated using concentration, evaporative crystallization, salt isolation technics, the technique needs
Using the different solubility of two kinds of salinities, waste water is evaporated by multi-effect evaporator, crystallisation by cooling separation, made in multi-effect evaporator
Equipment energy consumption is big during, and the product purity separated is not high；
Disclosed patent (Patent No.：CN201310311711), using bipolar membrane electrodialysis method from viscose rayon
Sulfuric acid and sodium hydroxide solution are isolated in sodium sulfate waste liquid, this patent is only referred to bipolar membrane electrodialysis process, but the method is only
Suitable for the waste liquid of single component, the separation of a variety of industrial bisulfate waste liquors is not applied to.
In order to which the recycling of resource can either be realized, the energy, simple to operate is saved again, and hazards are less, design one
The device that kind utilizes for mixing Nacl effluent resource is very important.
Utility model content
The applicant is directed to the caused accessory substance in above-mentioned existing production technology, such as the waste liquid after spent acid and salkali waste neutralization
The waste liquid after acidic and alkaline gas is adsorbed with spray column water, and energy consumption in processing procedure to be present big, and cost is high, dangerous in operating process
Factor is more, and the present situation that the industrial purity salt reclaimed is not high, there is provided a kind of use membrane separation technique rational in infrastructure is realized mixed
The device that Nacl effluent resource utilizes is closed, so as to which after stripping tower, gas phase absorbs by absorption tower by waste liquid, then by anti-
After permeable membrane device, ammoniacal liquor is obtained, liquid phase separates by nano filter membrance device, and the solution containing dianion is through bipolar membrane electrodialysis
Sulfuric acid solution and sodium hydroxide solution are obtained after device, the solution containing univalent anion passes through counter-infiltration and electrolysis unit, obtains
Liquor natrii hypochloritis, four kinds of materials can serve as industrial chemicals sale.Not only reduce and deposited in existing Nacl processing procedure
The problem of, and realize mixing Nacl recycling.
Technical scheme is as follows used by the utility model：
It is a kind of that the device for mixing Nacl effluent resource and utilizing, including stoste storage tank, institute are realized using membrane separation technique
The output end for stating stoste storage tank is connected by the first elevator pump (P1) with stripping tower upper end, the material of the stripping tower top output
It is passed through in absorption tower, the material of absorption tower lower end outflow is entered in the first reverse osmosis unit by the 3rd elevator pump (P3), described
The concentrated solution and weak solution of first reverse osmosis unit output are separately stored in the first accumulator tank and the second accumulator tank；First savings
The upper end of tank is connected by the upper end on pipeline and absorption tower, and the 4th elevator pump (P4) is housed on the pipeline；Under the stripping tower
Hold the material of output to connect nano filter membrance device by pipeline, from inside and outside two outlet outflows, respectively enter bipolar membrane electrodialysis dress
Put and the second reverse osmosis unit；Bipolar membrane electrodialysis device output end connects sulfuric acid storage tank and sodium hydroxide storage tank；Second reverse osmosis
Saturating device output concentrated solution and weak solution, weak solution are stored in industrial water receiving tank, and concentrated solution is defeated through electrolysis unit, anode
Go out the lower end that material is passed through alkali liquid tank, export liquor natrii hypochloritis；Installation second carries on the output pipe of the stripping tower lower end
Pump (P2) is risen, the output end of second elevator pump (P2) is also connected to the upper end porch of stripping tower by loop pipe simultaneously.
Further improvement as above-mentioned technical proposal：
The stoste storage tank uses PE material manufactures, and its wall thickness is 20mm.
Medium in stripping tower is compressed air, reverse stripping, after material enters stripping tower from upper end, through the second elevator pump
(P2) circulation blow-removing.
Absorbing liquid is the weak solution in the first accumulator tank in absorption tower, inversely enters absorption tower, and the first savings with material
Weak solution in tank is recycled by the 4th elevator pump (P4) on pipeline.
Nano filter membrance device separates sodium sulphate in material and sodium chloride solution, and outputting material respectively enters bipolar membrane electrodialysis
Device and the second reverse osmosis unit.
By after sodium chloride in material and metabisulfite solution separation, two kinds of solution obtain purer nano filter membrance device through pervaporation
Sodium chloride crystal and sodium sulfate crystal.
The beneficial effects of the utility model are as follows：
The utility model is compact-sized, reasonable, easy to operate, and after waste liquid is carried out into stripping, gas phase absorbs after absorption
Liquid can obtain ammoniacal liquor, sold as industrial chemicals, liquid phase obtains sulfuric acid solution, hydrogen through membrane separation, electrolysis through reverse-osmosis treated
Sodium hydroxide solution and liquor natrii hypochloritis, sold as industrial chemicals, liquid can also be directly simple dense after membrane separation
Contracting, obtains purer sodium chloride and sodium sulfate crystal, can be sold directly as Nacl.Not only reduce at existing Nacl
The problem of existing during reason, and realize mixing Nacl recycling.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is process chart of the present utility model.
Wherein：1st, stoste storage tank；2nd, stripping tower；3rd, absorption tower；4th, the first reverse osmosis unit；5th, the first accumulator tank；6th,
Two accumulator tanks；7th, nano filter membrance device；8th, bipolar membrane electrodialysis device；9th, sulfuric acid storage tank；10th, sodium hydroxide storage tank；11st, second is anti-
Permeability apparatus；12nd, electrolysis unit；13rd, alkali liquid tank；14th, industrial water receiving tank；P1, the first elevator pump；P2, the second elevator pump；
P3, the 3rd elevator pump；P4, the 4th elevator pump.
Embodiment
Below in conjunction with the accompanying drawings, specific embodiment of the present utility model is illustrated.
As depicted in figs. 1 and 2, being realized using membrane separation technique for the present embodiment mixes what Nacl effluent resource utilized
Device, including stoste storage tank 1, the output end of stoste storage tank 1 are connected by the first elevator pump P1 with the upper end of stripping tower 2, stripping tower 2
The material of top output is passed through in absorption tower 3, and the material of the lower end of absorption tower 3 outflow enters the first reverse osmosis by the 3rd elevator pump P3
In saturating device 4, the concentrated solution and weak solution of the output of the first reverse osmosis unit 4 are separately stored in the first accumulator tank 5 and the second savings
In tank 6；The upper end of first accumulator tank 5 is connected by pipeline with the upper end on absorption tower 3, and the 4th elevator pump P4 is housed on pipeline；Blow
The material of the de- lower end of tower 2 output connects nano filter membrance device 7 by pipeline, from inside and outside two outlet outflows, respectively enters Bipolar Membrane
The reverse osmosis unit 11 of electrodialysis plant 8 and second；The output end of bipolar membrane electrodialysis device 8 connects sulfuric acid storage tank 9 and sodium hydroxide
Storage tank 10；Second reverse osmosis unit 11 exports concentrated solution and weak solution, weak solution are stored in industrial water receiving tank 14, dense molten
Liquid is passed through the lower end of alkali liquid tank 13, exports liquor natrii hypochloritis through electrolysis unit 12, anode output material；The lower end of stripping tower 2
Second elevator pump P2, the second elevator pump P2 output end is installed on output pipe while stripping tower 2 is also connected to by loop pipe
Upper end porch.
Stoste storage tank 1 uses PE material manufactures, and its wall thickness is 20mm.
Medium in stripping tower 2 is compressed air, reverse stripping, after material enters stripping tower 2 from upper end, is lifted through second
Pump P2 circulation blow-removings.
Absorbing liquid is the weak solution in the first accumulator tank 5 in absorption tower 3, inversely enters absorption tower 3, and the first storage with material
The weak solution stored in tank 5 is recycled by the 4th elevator pump P4 on pipeline.
Nano filter membrance device 7 separates sodium sulphate in material and sodium chloride solution, and outputting material respectively enters Bipolar Membrane electric osmose
The reverse osmosis unit 11 of analysis apparatus 8 and second.
By after sodium chloride in material and metabisulfite solution separation, two kinds of solution obtain purer nano filter membrance device 7 through pervaporation
Sodium chloride crystal and sodium sulfate crystal.
As shown in Fig. 2 the work for mixing Nacl effluent resource and utilizing is realized by membrane separation technique using the said equipment
Skill process is as follows：
The first step：The boosted pump of industrial bisulfate waste liquor will be mixed it is delivered to the upper end of stripping tower 2, compressed air is from stripping tower 2
Lower end is inputted, and the boosted pump circulation stripping of waste liquid is removed to the ammonia in waste liquid.
Second step：The ammonia that the first step obtains is absorbed with after reverse osmosis membrane concentration by absorption tower, obtains ammoniacal liquor, Ke Yizuo
Sold for the raw material of industry.
3rd step：Second step passes through nano filter membrance device 7 by sodium sulphate in waste liquid and sodium chloride by the waste liquid of multiple stripping
Solution separates.
4th step：The metabisulfite solution that 3rd step obtains acts on by bipolar membrane electrodialysis, respectively obtains raw material of industry sulphur
Acid solution and sodium hydroxide solution.
5th step：For the sodium chloride solution that 3rd step obtains after reverse osmosis concentration, weak solution is dense molten as industrial water
Liquid is electrolysed, and the gas that anode obtains passes through absorbing by liquid caustic soda, obtains raw material of industry liquor natrii hypochloritis.
Above description is to explanation of the present utility model, is not the restriction to utility model, what the utility model was limited
Scope within the scope of protection of the utility model, can make any type of modification referring to claim.
Claims (6)
1. a kind of realize the device for mixing Nacl effluent resource and utilizing using membrane separation technique, it is characterised in that：Including original
Liquid storage tank (1), the output end of the stoste storage tank (1) is connected by the first elevator pump (P1) with stripping tower (2) upper end, described to blow
The material of de- tower (2) top output is passed through in absorption tower (3), and the material of absorption tower (3) lower end outflow passes through the 3rd elevator pump
(P3) enter in the first reverse osmosis unit (4), the concentrated solution and weak solution of the first reverse osmosis unit (4) output store respectively
In the first accumulator tank (5) and the second accumulator tank (6)；The upper end of first accumulator tank (5) passes through pipeline and the upper end on absorption tower (3)
Connect, the 4th elevator pump (P4) is housed on the pipeline；The material of stripping tower (2) the lower end output connects nanofiltration by pipeline
Film device (7), from inside and outside two outlet outflows, respectively enter bipolar membrane electrodialysis device (8) and the second reverse osmosis unit (11)；
Bipolar membrane electrodialysis device (8) output end connection sulfuric acid storage tank (9) and sodium hydroxide storage tank (10)；Second reverse osmosis unit (11)
Output concentrated solution and weak solution, weak solution are stored in industrial water receiving tank (14), and concentrated solution is through electrolysis unit (12), anode
Output material is passed through the lower end of alkali liquid tank (13), exports liquor natrii hypochloritis；Pacify on the output pipe of stripping tower (2) lower end
The second elevator pump (P2) is filled, the output end of second elevator pump (P2) is also connected to stripping tower (2) by loop pipe simultaneously
Upper end porch.
2. realizing the device for mixing Nacl effluent resource and utilizing using membrane separation technique as claimed in claim 1, it is special
Sign is：The stoste storage tank (1) uses PE material manufactures, and its wall thickness is 20mm.
3. realizing the device for mixing Nacl effluent resource and utilizing using membrane separation technique as claimed in claim 1, it is special
Sign is：Medium in stripping tower (2) is compressed air, reverse stripping, after material enters stripping tower (2) from upper end, through second
Elevator pump (P2) circulation blow-removing.
4. realizing the device for mixing Nacl effluent resource and utilizing using membrane separation technique as claimed in claim 1, it is special
Sign is：Absorbing liquid is the weak solution in the first accumulator tank (5) in absorption tower (3), inversely enters absorption tower (3) with material, and
Weak solution in first accumulator tank (5) is recycled by the 4th elevator pump (P4) on pipeline.
5. realizing the device for mixing Nacl effluent resource and utilizing using membrane separation technique as claimed in claim 1, it is special
Sign is：Nano filter membrance device (7) separates sodium sulphate in material and sodium chloride solution, and outputting material respectively enters Bipolar Membrane electric osmose
Analysis apparatus (8) and the second reverse osmosis unit (11).
6. realizing the device for mixing Nacl effluent resource and utilizing using membrane separation technique as claimed in claim 1, it is special
Sign is：By after sodium chloride in material and metabisulfite solution separation, two kinds of solution obtain purer nano filter membrance device (7) through pervaporation
Sodium chloride crystal and sodium sulfate crystal.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721060729.3U CN207108514U (en) | 2017-08-23 | 2017-08-23 | The device for mixing Nacl effluent resource and utilizing is realized using membrane separation technique |
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|---|---|---|---|
| CN201721060729.3U CN207108514U (en) | 2017-08-23 | 2017-08-23 | The device for mixing Nacl effluent resource and utilizing is realized using membrane separation technique |
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| CN207108514U true CN207108514U (en) | 2018-03-16 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108468065A (en) * | 2018-05-14 | 2018-08-31 | 湖南恒光科技股份有限公司 | A kind of sodium chlorate and chlor-alkali combined denitration technique |
| CN109851107A (en) * | 2019-03-22 | 2019-06-07 | 盛隆资源再生（无锡）有限公司 | A method of Nacl effluent resource will be mixed using membrane technology |
| CN111573916A (en) * | 2020-05-21 | 2020-08-25 | 南京大学盐城环保技术与工程研究院 | Method and system for recycling dimethyl formamide wastewater |
-
2017
- 2017-08-23 CN CN201721060729.3U patent/CN207108514U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108468065A (en) * | 2018-05-14 | 2018-08-31 | 湖南恒光科技股份有限公司 | A kind of sodium chlorate and chlor-alkali combined denitration technique |
| CN109851107A (en) * | 2019-03-22 | 2019-06-07 | 盛隆资源再生（无锡）有限公司 | A method of Nacl effluent resource will be mixed using membrane technology |
| CN111573916A (en) * | 2020-05-21 | 2020-08-25 | 南京大学盐城环保技术与工程研究院 | Method and system for recycling dimethyl formamide wastewater |
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