CN205328785U - Processing apparatus of high concentration ammonium sulfate waste water - Google Patents
Processing apparatus of high concentration ammonium sulfate waste water Download PDFInfo
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- CN205328785U CN205328785U CN201521114852.XU CN201521114852U CN205328785U CN 205328785 U CN205328785 U CN 205328785U CN 201521114852 U CN201521114852 U CN 201521114852U CN 205328785 U CN205328785 U CN 205328785U
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- regulating tank
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- electrodialytic membranes
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Abstract
The utility model discloses a processing apparatus of high concentration ammonium sulfate waste water, the device include adjustment tank, filter, adjustment tank, settler, heat exchanger and strip rectification system, wherein strip rectification system sets up to strip rectifying column and overhead condenser, still includes the electrodialytic membranes subassembly, electrodialytic membranes subassembly and heat exchanger link to each other, and strip rectification tata cauldron goes out water and gets into the electrodialytic membranes subassembly enriching recovery that steps forward after the heat exchanger heat transfer, the export of electrodialytic membranes subassembly concentrate is connected with the adjustment tank, as alkali source recycle, the bottom slag notch of settler links to each other with the adjustment tank, as alkali source recycle, this technology precipitates when using lime to adjust pH as the regulator gets rid of sulfate to reduce the addition of follow -up alkali lye, practiced thrift the cost, prevented the scale deposit, simple process, maneuverability is strong, has good market prospect.
Description
Technical field
This utility model relates to metallurgy waste water treatment field, particularly relates to the process device of a kind of high-concentration sulfuric acid ammonium waste water。
Background technology
Ammonia nitrogen waste water is the industrial wastewater that a class is common, for preventing the discharge beyond standards of ammonia nitrogen from causing body eutrophication, causes environmental pollution, this kind of waste water to have to pass through after process reaches discharge standard and could discharge。High-concentration sulfuric acid ammonium waste water is because of the ammonia-nitrogen content of its middle and high concentration, preprocessed just must can be discharged into public Industrial sewage treatment system, Industrial sewage treatment system otherwise can be made not run well, and ammonia-removal method commonly used at present is usually present alkali consumption greatly, the problem that operating cost is high。
Therefore, inventor, for above-mentioned technical problem, concentrates on studies and develops the process device of a kind of high-concentration sulfuric acid ammonium waste water, this device relative to sodium method except ammonia operating cost relatively low, and the problem being absent from fouling and clogging equipment。
Utility model content
For above-mentioned technical problem, the utility model proposes the process device of a kind of high-concentration sulfuric acid ammonium waste water, sulfate radical precipitation is removed while first regulating pH with Calx for regulator by this device, thus reducing follow-up alkali liquor consumption, the recycling settler degree of depth removes the Ca in supernatant2+, the calcium hydroxide slag obtained can be recycled, and supernatant enters stripping distillation system deamination；Meanwhile, stripping tower bottom of rectifying tower water outlet is strong basicity, can also concentrate alkali liquor further with electrodialytic membranes assembly, it is achieved the resource of alkali liquor is recycled after heat exchanger heat exchange。
For reaching this purpose, this utility model by the following technical solutions:
The process device of a kind of high-concentration sulfuric acid ammonium waste water, it includes regulating tank, filter, regulating tank, settler, heat exchanger and stripping distillation system；
The outlet of described regulating tank is connected with filter inlet；
The outlet of described filter is connected with regulating tank entrance；
The outlet of described regulating tank is connected with settler entrance, and the outlet of described settler is connected with stripping distillation system by heat exchanger。
Described stripping distillation system includes stripping rectifying column and overhead condenser；
Described stripping rectifier bottoms is provided with steam inlet and liquid outlet, and top is provided with gas outlet and liquid inlet；
Described overhead condenser is provided with gas access and liquid outlet；
Described stripping rectifying column is connected with tower top settler condenser-air entrance by top gas outlet, and described overhead condenser liquid outlet is connected with stripping rectifying column liquid inlet。
Also including electrodialytic membranes assembly, described electrodialytic membranes assembly is connected with heat exchanger, and stripping tower bottom of rectifying tower water outlet enters the further concentration and recovery of electrodialytic membranes assembly after heat exchanger heat exchange。
Described electrodialytic membranes assembly concentrated solution outlet is connected with regulating tank, recycles as alkali source。
The bottom slag notch of described settler is connected with regulating tank, recycles as alkali source。
Compared with prior art, this utility model has the advantages that
1, this utility model provides the process device of a kind of high-concentration sulfuric acid ammonium waste water, not only can be removed by ammonia nitrogen in waste water (≤15mg/L) up to standard, and recyclable high strength ammonia aquatic products (>=15%)；
2, this utility model utilizes Calx as regulator, regulates pH, in order to the alkali liquor that follow-up interpolation is a small amount of while being removed by sulfate radical, after settler settles, enter stripping rectifying column deamination, both saved cost, and prevented again fouling, technique is simple, workable, has a good application prospect。
3, this utility model belongs to processing equipment for recycling, it is possible to stripping rectifying column water outlet is entered the utilization of electrodialytic membranes assembly concentration and recovery after heat exchanger cools down, and the calcium hydroxide slag that settler produces can return to as alkali source。
Accompanying drawing explanation
Fig. 1 is the process device schematic diagram of the high-concentration sulfuric acid ammonium waste water that this utility model provides。
Wherein: 1-regulating tank；2-filter；3-regulating tank；4-settler；5-heat exchanger；6-strips rectifying column；7-overhead condenser；8-electrodialytic membranes assembly。
Below this utility model is further described。But following example is only simple and easy example of the present utility model, not representing or limit rights protection scope of the present utility model, protection domain of the present utility model is as the criterion with claims。
Detailed description of the invention
For this utility model is better described, it is simple to understanding the technical solution of the utility model, typical but non-limiting embodiment of the present utility model is as follows:
As it is shown in figure 1, the process device of a kind of high-concentration sulfuric acid ammonium waste water, it includes regulating tank 1, filter 2, regulating tank 3, settler 4, heat exchanger 5 and stripping distillation system；Wherein the outlet of regulating tank 1 is connected with the entrance of filter 2, and the outlet of filter 2 is connected with the entrance of regulating tank 3, and the outlet of regulating tank 3 is connected with settler 4 entrance, and settler 4 is exported and is connected with stripping distillation system by heat exchanger 5；Stripping distillation system is set to include stripping rectifying column 6 and overhead condenser 7, it is provided with steam inlet and liquid outlet bottom stripping rectifying column 6, top is provided with gas outlet and liquid inlet, overhead condenser 7 is provided with gas access and liquid outlet, stripping rectifying column 6 is connected with overhead condenser 7 gas access by top gas outlet, and overhead condenser 7 liquid outlet is connected with stripping rectifying column 6 liquid inlet。
Additionally, whole process device is also provided with electrodialytic membranes assembly 8 as required, electrodialytic membranes assembly 8 is connected with heat exchanger 5, water outlet at the bottom of stripping rectifying column 6 tower enters the further concentration and recovery of electrodialytic membranes assembly 8 after heat exchanger 5 heat exchange, electrodialytic membranes assembly 8 concentrated solution outlet is connected with regulating tank 3, recycles as alkali source；Meanwhile, the bottom slag notch of settler 4 is connected with regulating tank 1, it is also possible to recycle as alkali source。
In practical work process, high-concentration sulfuric acid ammonium waste water is introduced regulating tank 1, with Calx for regulator, introduce filter after regulating pH to 10 to filter, remove calcium sulfate precipitation, enter next regulating tank 3, utilize sodium hydroxide solution, as alkali source, pH is adjusted to 13, according to Ca (OH)2Resolution of precipitate equilibrium principle, the Ca in settler supernatant2+Can remove to below 30mg/L, bottom settler, calcium hydroxide slag returns regulating tank 1, and supernatant enters deamination in stripping rectifying column, not only will not cause fouling in tower, and reduce operating cost, meanwhile, tower bottom of rectifying tower water outlet pH is stripped 12～13, ammonia nitrogen (≤15mg/L) up to standard, can arrange outside part, being partially into the concentration of electrodialytic membranes assembly, concentrated solution NaOH concentration is high, returns regulating tank 3 as alkali source。
Applicant states, this utility model illustrates method of the present utility model by above-described embodiment, but this utility model is not limited to aforesaid operations step, does not namely mean that this utility model has to rely on aforesaid operations step and could implement。Person of ordinary skill in the field it should be understood that; to any improvement of the present utility model; the equivalence of raw material selected by this utility model is replaced and the interpolation of auxiliary element, concrete way choice etc., all falls within protection domain of the present utility model and open scope。
Claims (5)
1. the process device of a high-concentration sulfuric acid ammonium waste water, it is characterized in that, it includes regulating tank (1), filter (2), regulating tank (3), settler (4), heat exchanger (5) and stripping distillation system；
The outlet of described regulating tank (1) is connected with filter (2) entrance；
The outlet of described filter (2) is connected with regulating tank (3) entrance；
The outlet of described regulating tank (3) is connected with settler (4) entrance, and described settler (4) outlet is connected with stripping distillation system by heat exchanger (5)。
2. process device as claimed in claim 1, it is characterised in that described stripping distillation system includes stripping rectifying column (6) and overhead condenser (7)；
Described stripping rectifying column (6) bottom is provided with steam inlet and liquid outlet, and top is provided with gas outlet and liquid inlet；
Described overhead condenser (7) is provided with gas access and liquid outlet；
Described stripping rectifying column (6) is connected with overhead condenser (7) gas access by top gas outlet, and described overhead condenser (7) liquid outlet is connected with stripping rectifying column (6) liquid inlet。
3. process device as claimed in claim 1 or 2, it is characterized in that, also include electrodialytic membranes assembly (8), described electrodialytic membranes assembly (8) is connected with heat exchanger (5), and stripping rectifying column (6) tower reactor water outlet enters electrodialytic membranes assembly (8) concentration and recovery further after heat exchanger (5) heat exchange。
4. process device as claimed in claim 3, it is characterised in that described electrodialytic membranes assembly (8) concentrated solution outlet is connected with regulating tank (3), recycle as alkali source。
5. process device as described in any claim in claim 1,2 or 4, it is characterised in that the bottom slag notch of described settler (4) is connected with regulating tank (1), recycles as alkali source。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521114852.XU CN205328785U (en) | 2015-12-30 | 2015-12-30 | Processing apparatus of high concentration ammonium sulfate waste water |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521114852.XU CN205328785U (en) | 2015-12-30 | 2015-12-30 | Processing apparatus of high concentration ammonium sulfate waste water |
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| CN205328785U true CN205328785U (en) | 2016-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201521114852.XU Active CN205328785U (en) | 2015-12-30 | 2015-12-30 | Processing apparatus of high concentration ammonium sulfate waste water |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107473447A (en) * | 2017-09-26 | 2017-12-15 | 赣州逸豪优美科实业有限公司 | A kind of method of calcium method recycling treatment acidic high-strength ammonium sulfate waste water |
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2015
- 2015-12-30 CN CN201521114852.XU patent/CN205328785U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107473447A (en) * | 2017-09-26 | 2017-12-15 | 赣州逸豪优美科实业有限公司 | A kind of method of calcium method recycling treatment acidic high-strength ammonium sulfate waste water |
| CN107473447B (en) * | 2017-09-26 | 2020-10-30 | 赣州逸豪优美科实业有限公司 | Method for recycling acidic high-concentration ammonium sulfate wastewater by calcium method |
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