CN206705881U - A kind of ammonia nitrogen waste water processing added with acid solution, is stored and multi-effect evaporation system - Google Patents
A kind of ammonia nitrogen waste water processing added with acid solution, is stored and multi-effect evaporation system Download PDFInfo
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- CN206705881U CN206705881U CN201720401890.6U CN201720401890U CN206705881U CN 206705881 U CN206705881 U CN 206705881U CN 201720401890 U CN201720401890 U CN 201720401890U CN 206705881 U CN206705881 U CN 206705881U
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Abstract
It the utility model is related to field of waste water treatment, a kind of ammonia nitrogen waste water processing is disclosed to be added, stored and multi-effect evaporation system with acid solution, including means for feeding acid, diluted acid circulating tank, acid circulating pump, cartridge filter, sour absorbing liquid collecting pit, MVR feed pumps, preheater, evaporator, discharging pump, thickener, centrifuge, mother liquor tank, mother liquor reflux pump；Means for feeding acid is connected with deamination membrane module；Diluted acid circulating tank is connected with deamination membrane module, and diluted acid circulating tank, acid circulating pump, cartridge filter pass sequentially through pipeline and be connected with after means for feeding acid cocurrent with deamination membrane module；Diluted acid circulating tank, sour absorbing liquid collecting pit, MVR feed pumps, preheater, evaporator, discharging pump, thickener, centrifuge, mother liquor tank are sequentially connected, and the outlet of mother liquor tank is connected with mother liquor reflux pump, discharging pump successively again.The utility model can effectively be reclaimed to the ammonium salt in high ammonia-nitrogen wastewater.And the energy is taken full advantage of in the entire system, cost is relatively low.
Description
Technical field
The utility model is related to field of waste water treatment, more particularly to a kind of ammonia nitrogen waste water processing added with acid solution, store with
Multi-effect evaporation system.
Background technology
With developing rapidly for the industries such as chemical industry, printing and dyeing, chemical fertilizer, the high ammonia-nitrogen wastewater thus occurred turns into industry development
Restraining factors.The red tide number that China marine site occurs increases, and ammonia nitrogen is one of main pollution factor, particularly ammonia nitrogen in high density
Pollution caused by waste water.Thus, cost-effective control ammonia nitrogen in high density also turns into the important class of current environmental worker research
Topic, has obtained the great attention of professional.
Ammonia nitrogen waste water is discharged into water body, particularly flows more slow lake, bay, easily causes in water algae and other micro-
Biological amount reproduction, eutrophication pollution is formed, water treatment plants operation on the one hand can be made difficult, cause the peculiar smell of drinking water
Outside, it on the other hand can decline oxygen in water, fish mortality, result even in lake destruction.Ammonia nitrogen can also make feedwater
Chlorine dosage is increased in sterilization and industrial circulating water sterilisation process, to some metals, particularly there is corrosivity to copper.When
During reusing sewage, microorganism can promote the breeding of microorganism in water-supply-pipe and water equipment in recycled water, be blocked up after forming biology
Pipeline and water equipment are filled in, and influences heat exchange efficiency.
The in general of ammonia nitrogen waste water is formed as caused by ammoniacal liquor and inorganic ammonia exist jointly, and typically upper pH is in neutrality
More than the main source of ammonia nitrogen in waste water be inorganic ammonia and the common effect of ammoniacal liquor, ammonia nitrogens of the pH in waste water under conditions of acidity
Mainly due to caused by inorganic ammonia.The method that can effectively handle ammonia nitrogen to this has many, as physical-chemical process have stripping, from
Sub- exchange, coagulating sedimentation, counter-infiltration, electrodialysis and various high-level oxidation technologies（AOTs）Etc. a variety of methods；Biological method has nitre
The water plant cultivation such as change and algae.But have the advantages that using it is convenient, treatment effect is stable, adapts to waste water quality and economical
NH3-N elimination method is still among research.
The ammonia that deamination membrane module can be spent in waste water is separated, and its principle is that waste water enters in the shell side of deamination film, control
The temperature of waste water processed is controlled more than 10 at 35-50 DEG C, and by wastewater pH, now the ammonium ion NH in waste water4+Become free
Gaseous state NH3.At this moment gaseous state NH3The micropore on the doughnut surface of deamination membrane module can be passed through, ammonia enters pipe from shell side
Cheng Zhong, acid solution is connected with tube side, ammonia mixes with sour absorbing liquid, and ammonia becomes the NH of ionic state again at once after being absorbed by acid solution4+。
Utility model content
In order to solve the above-mentioned technical problem, the utility model provides a kind of ammonia nitrogen waste water processing and is added, stored with acid solution
With multi-effect evaporation system.The utility model can effectively be reclaimed to the ammonium salt in high ammonia-nitrogen wastewater.And in whole system
In take full advantage of the energy, cost is relatively low.
Concrete technical scheme of the present utility model is：A kind of ammonia nitrogen waste water processing added with acid solution, is stored and multiple-effect evaporation
System, including it is means for feeding acid, diluted acid circulating tank, acid circulating pump, cartridge filter, sour absorbing liquid collecting pit, MVR feed pumps, pre-
Hot device, evaporator, discharging pump, thickener, centrifuge, mother liquor tank, mother liquor reflux pump；The means for feeding acid and supporting deamination film
The tube side import connection of component；The diluted acid circulating tank is connected with the outlet of the tube side of deamination membrane module, and diluted acid circulating tank, acid follow
Ring pump, cartridge filter pass sequentially through pipeline and are connected with the import after means for feeding acid cocurrent with deamination membrane module shell side；It is in addition, dilute
Sour circulating tank, sour absorbing liquid collecting pit, MVR feed pumps, preheater, evaporator, discharging pump, thickener, centrifuge, mother liquor tank lead to
Cross pipeline to be sequentially connected, the outlet of mother liquor tank is connected with mother liquor reflux pump, discharging pump successively again by pipeline；And mother liquor reflux pump
The mother liquor reflux pipe with mother liquor tank backflow connection is additionally provided with pipeline afterwards.
Operation principle of the present utility model is：Formic acid device is deamination membrane module for acid；Diluted acid circulating tank is logical for reclaiming
The acid solution crossed after deamination membrane module, and acid is carried out to it and recycled.Diluted acid circulating tank can also lead to sour absorbing liquid collecting pit and enter
Row intermediate storage.Acid solution passes through the preheating of preheater under the conveying of MVR feed pumps, and the ammonium salt in acid solution thoroughly dissolves, and makes
The good fluidity of acid solution is obtained, is not easily blocked pipeline.After reaching evaporator, heating wherein evaporates solvent, in this ammonium salt concentration
Significantly increased raising, the ammonium salt acid solution of high concentration continues through discharging pump and is transported to thickener, tied in thickener
Crystalline substance, the acid solution for being contaminated with crystallization is then delivered to centrifuge, crystallizes in the presence of centrifuge and is separated with acid solution, crystallize and received
Collection, can be directly used for selling.And acid solution is transported to mother liquor tank, the ammonium due to the acid solution in mother liquor tank also containing part for crystallization
Salt, it is transmitted back in evaporator to mix with acid solution below again evaporates, crystallizes again.Make full use of resource.
In addition, carrying out circulating reflux to the material in mother liquor tank, material can be made to be in flow regime all the time, prevent from blocking up
Material.
Preferably, sulfuric acid storage tank, acid adding measuring pump, graphite cake that the means for feeding acid includes being sequentially connected change；It is described
Graphite cake changes to be connected with the import of deamination membrane module shell side；And acid adding measuring pump and graphite cake alternatively between pipeline be provided with and sulphur
The sour return duct of acid storage tank connection.
Preferably, also include forced circulation pump, forced heat-exchanging device and compressor；The forced circulation pump and forced heat-exchanging
The entirety that device is formed forms circulation loop with discharging pump；The import of the compressor and the steam (vapor) outlet of discharging pump connect, compression
The outlet of machine is connected with forced heat-exchanging device.
The moisture to gasify in evaporator is transported in forced heat-exchanging device after the heating again of compressor；Steam simultaneously
Send out device and circulation loop is also formed by forced circulation pump and forced heat-exchanging device, acid solution and the steam after heating in forced heat-exchanging device
Carry out heat exchange, the temperature rise of acid solution, solvent volatilization.Above-mentioned attachment structure can abundant recycling heat energy, reduce cost.
And the acid solution forced circulation flowing containing ammonium salt, anti-locking apparatus in evaporator is set to be blocked（After ammonium salt concentration uprises in acid solution
Solution viscosity greatly improves, and mobility is very poor）.
Preferably, the thin liquid outlet on the thickener is directly connected with mother liquor tank.Liquid level part ammonium salt in thickener
The relatively low acid solution of concentration, is fed directly to mother liquor tank, is circulated again, without that by centrifuge, can greatly improve work
Efficiency.
It is compared with the prior art, the beneficial effects of the utility model are：The utility model can be in high ammonia-nitrogen wastewater
Ammonium salt is effectively reclaimed.And the energy is taken full advantage of in the entire system, cost is relatively low.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the present utility model.
Reference is：Diluted acid circulating tank 1, acid circulating pump 2, cartridge filter 3, sour absorbing liquid collecting pit 4, MVR chargings
Pump 5, preheater 6, evaporator 7, discharging pump 8, thickener 9, centrifuge 10, mother liquor tank 11, mother liquor reflux pump 12, deamination membrane module
13rd, mother liquor reflux pipe 14, sulfuric acid storage tank 15, acid adding measuring pump 16, graphite cake change 17, sour return duct 18, forced circulation pump 19, strong
Heat exchanger 20, compressor 21.
Embodiment
With reference to embodiment, the utility model will be further described.In the utility model involved device,
Connection structure and method, it is device well known in the art, connection structure and method if without refering in particular to.
Embodiment 1
As shown in Figure 1：A kind of ammonia nitrogen waste water processing added with acid solution, is stored and multi-effect evaporation system, including means for feeding acid,
Diluted acid circulating tank 1, acid circulating pump 2, cartridge filter 3, sour absorbing liquid collecting pit 4, MVR feed pumps 5, preheater 6, evaporator 7,
Discharging pump 8, thickener 9, centrifuge 10, mother liquor tank 11, mother liquor reflux pump 12, forced circulation pump 19, forced heat-exchanging device 20 and pressure
Contracting machine 21.
Sulfuric acid storage tank 15, acid adding measuring pump 16, the graphite cake that the means for feeding acid includes being sequentially connected change 17；The graphite
Plate changes to be connected with the import of the shell side of deamination membrane module 13；And acid adding measuring pump and graphite cake alternatively between pipeline be provided with and sulfuric acid
Store up tank connected sour return duct 18.
The diluted acid circulating tank is connected with the outlet of the tube side of deamination membrane module, diluted acid circulating tank, acid circulating pump, is ensured public security
Filter passes sequentially through pipeline and is connected with the import after means for feeding acid cocurrent with deamination membrane module shell side；In addition, diluted acid circulating tank, acid
Absorbing liquid collecting pit, MVR feed pumps, preheater, evaporator, discharging pump, thickener, centrifuge, mother liquor tank by pipeline successively
Connection, the outlet of mother liquor tank are connected with mother liquor reflux pump, discharging pump successively again by pipeline；And on the pipeline after mother liquor reflux pump
It is additionally provided with the mother liquor reflux pipe 14 with mother liquor tank backflow connection.Thin liquid outlet on the thickener is directly connected with mother liquor tank.
The forced circulation pump forms circulation loop with the entirety that forced heat-exchanging device is formed and discharging pump；The compressor
The steam (vapor) outlet of import and discharging pump is connected, and the outlet of compressor is connected with forced heat-exchanging device.
It is described above, only it is preferred embodiment of the present utility model, not the utility model is imposed any restrictions, every
Any simple modification, change and the equivalent structure transformation made according to the utility model technical spirit to above example, still
Belong to the protection domain of technical solutions of the utility model.
Claims (4)
1. a kind of ammonia nitrogen waste water processing added with acid solution, is stored and multi-effect evaporation system, it is characterised in that：Including means for feeding acid,
Diluted acid circulating tank（1）, acid circulating pump（2）, cartridge filter（3）, sour absorbing liquid collecting pit（4）, MVR feed pumps（5）, preheater
（6）, evaporator（7）, discharging pump（8）, thickener（9）, centrifuge（10）, mother liquor tank（11）, mother liquor reflux pump（12）；It is described to add
Sour device and supporting deamination membrane module（13）Tube side import connection；The diluted acid circulating tank and the tube side of deamination membrane module
Outlet connection, diluted acid circulating tank, acid circulating pump, cartridge filter pass sequentially through after pipeline and means for feeding acid cocurrent with deamination film group
The import connection of part shell side；In addition, diluted acid circulating tank, sour absorbing liquid collecting pit, MVR feed pumps, preheater, evaporator, discharging
Pump, thickener, centrifuge, mother liquor tank are sequentially connected by pipeline, the outlet of mother liquor tank by pipeline again successively with mother liquor reflux
Pump, discharging pump connection；And the mother liquor reflux pipe with mother liquor tank backflow connection is additionally provided with the pipeline after mother liquor reflux pump（14）.
2. a kind of ammonia nitrogen waste water processing as claimed in claim 1 added with acid solution, store and multi-effect evaporation system, its feature exist
In the means for feeding acid includes the sulfuric acid storage tank being sequentially connected（15）, acid adding measuring pump（16）, graphite cake changes（17）；The stone
Black plate changes to be connected with the import of deamination membrane module shell side；And acid adding measuring pump and graphite cake alternatively between pipeline be provided with and sulfuric acid
Store up tank connected sour return duct（18）.
3. a kind of ammonia nitrogen waste water processing as claimed in claim 1 or 2 added with acid solution, is stored and multi-effect evaporation system, it is special
Sign is, in addition to forced circulation pump（19）, forced heat-exchanging device（20）And compressor（21）；The forced circulation pump changes with pressure
The entirety that hot device is formed forms circulation loop with discharging pump；The import of the compressor and the steam (vapor) outlet of discharging pump connect, pressure
The outlet of contracting machine is connected with forced heat-exchanging device.
4. a kind of ammonia nitrogen waste water processing as claimed in claim 1 or 2 added with acid solution, is stored and multi-effect evaporation system, it is special
Sign is that the thin liquid outlet on the thickener is directly connected with mother liquor tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720401890.6U CN206705881U (en) | 2017-04-17 | 2017-04-17 | A kind of ammonia nitrogen waste water processing added with acid solution, is stored and multi-effect evaporation system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720401890.6U CN206705881U (en) | 2017-04-17 | 2017-04-17 | A kind of ammonia nitrogen waste water processing added with acid solution, is stored and multi-effect evaporation system |
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| CN206705881U true CN206705881U (en) | 2017-12-05 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109052709A (en) * | 2018-08-08 | 2018-12-21 | 苏州荣轩环保有限公司 | A kind of technique based on evaporation process high ammonia-nitrogen wastewater under acid washing conditions |
| CN110590067A (en) * | 2019-09-25 | 2019-12-20 | 阮建林 | Advanced treatment system and treatment method for triethylamine-containing comprehensive wastewater |
| CN115259261A (en) * | 2022-07-22 | 2022-11-01 | 东莞东元环境科技股份有限公司 | System and method for multiple effect evaporation |
-
2017
- 2017-04-17 CN CN201720401890.6U patent/CN206705881U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109052709A (en) * | 2018-08-08 | 2018-12-21 | 苏州荣轩环保有限公司 | A kind of technique based on evaporation process high ammonia-nitrogen wastewater under acid washing conditions |
| CN110590067A (en) * | 2019-09-25 | 2019-12-20 | 阮建林 | Advanced treatment system and treatment method for triethylamine-containing comprehensive wastewater |
| CN115259261A (en) * | 2022-07-22 | 2022-11-01 | 东莞东元环境科技股份有限公司 | System and method for multiple effect evaporation |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Room 1701, building 1, No.22, Xinbei Road, Oriental Century Center, Xiaoshan District, Hangzhou City, Zhejiang Province 311200 Patentee after: Kaiyuan Environmental Technology Group Co.,Ltd. Address before: Room 1701, building 1, No.22, Xinbei Road, Oriental Century Center, Xiaoshan District, Hangzhou City, Zhejiang Province 311200 Patentee before: HANGZHOU KAIYUAN ENVIRONMENTAL ENGINEERING CO.,LTD. |
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| CP01 | Change in the name or title of a patent holder |