CN109592831A - A kind of abraum salt recovery method of the salt containing high strength ammonium-chloride - Google Patents
A kind of abraum salt recovery method of the salt containing high strength ammonium-chloride Download PDFInfo
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- CN109592831A CN109592831A CN201811650110.7A CN201811650110A CN109592831A CN 109592831 A CN109592831 A CN 109592831A CN 201811650110 A CN201811650110 A CN 201811650110A CN 109592831 A CN109592831 A CN 109592831A
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- Prior art keywords
- waste water
- salt
- chloride
- high strength
- abraum
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C1/00—Ammonia; Compounds thereof
- C01C1/16—Halides of ammonium
- C01C1/164—Ammonium chloride
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C3/00—Fertilisers containing other salts of ammonia or ammonia itself, e.g. gas liquor
-
- 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
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The invention discloses a kind of abraum salt recovery methods of salt containing high strength ammonium-chloride, comprise the following steps that: S1, waste water hyperfiltration separation, S2, waste water resin adsorption, using absorption resin to waste water adsorption treatment；S3, waste water microelectrolysis processing, by S1, treated that waste water is passed into micro cell, and iron carbon filler is covered in micro cell, S4, waste water neutralization precipitation detects the Ph of waste water, carries out neutralization precipitation according to the Ph of detection, S5, waste water evaporation process obtains concentrate using vacuum distillation, and evaporation concentrated solution obtains crude salt；S6, crude salt purified treatment, crude salt are added distilled water, crude salt are completely dissolved to obtain lysate, lysate are carried out secondary resin adsorption treatment, then be evaporated under reduced pressure to obtain concentrate, the abraum salt that evaporation concentrated solution is recycled.The invention enables the rate of recovery of the abraum salt in waste water height, and the cost recovery of abraum salt is low, economical and practical, can be used for the waste water of most high strength ammonium-chloride salt, have the meaning widely promoted the use of.
Description
Technical field
The present invention relates to the utilization technology field of abraum salt, the abraum salt of specially a kind of salt containing high strength ammonium-chloride is recycled
Method.
Background technique
In chemical production process, the recovery processing of waste water is energy conservation and environmental protection.The important link of green production.
In chemical production process in the prior art, a large amount of chlorination ammonium salt, such as Chinese patent are contained in waste water
CN201510204305.9 discloses a kind of processing method of o-phenylenediamine production waste water, just contains in o-phenylenediamine production waste water
There is a large amount of chlorination ammonium salt, for another example Chinese patent CN201510035894.2, discloses a kind of based on absorption spectrum comprehensive treatment
The method of nitroaniline waste water also contains a large amount of chlorination ammonium salt in nitroaniline waste water waste water.Chlorination ammonium salt is current chemical industry
Common salt in waste water.
Chlorination ammonium salt is the main salt in current industrial production, and is mainly used for chemical fertilizer, belongs to nitrogenous fertilizer.It can be certainly also used to
Other purposes.
In conjunction with status to the recycling economy with higher of the chlorination ammonium salt in the wastewater from chemical industry of the salt containing high strength ammonium-chloride
Interests, currently, the main problem of the chlorination ammonium salt in waste water is: 1, cost recovery is high, due to the production cost of chlorination ammonium salt
Larger, therefore, cost recovery is higher, causes current recycling return rate low,；2, the recovery efficiency of abraum salt is low；3, due to waste water
Itself has differences, therefore the recycling approach of the abraum salt in different wastewater from chemical industry is different, causes the abraum salt in waste water to recycle difficult
With effective popularization recycling.Therefore it is badly in need of a kind of higher economical and practical abraum salt recovery method of recovery efficiency changed extensively.
Summary of the invention
To solve the above problems, the invention discloses a kind of abraum salt recovery methods of salt containing high strength ammonium-chloride, so that useless
The rate of recovery of abraum salt in water is high, and the cost recovery of abraum salt is low, economical and practical, can be used for most high strength ammonium-chloride salt
Waste water has the meaning widely promoted the use of.
In order to reach the goals above, the invention provides the following technical scheme:
A kind of abraum salt recovery method of the salt containing high strength ammonium-chloride, comprises the following steps that:
S1, waste water hyperfiltration separation, waste water is settled, is separated after ultrafiltration after sedimentation,
S2, waste water resin adsorption, waste water is passed into resin adsorption tower, using absorption resin to waste water adsorption treatment；
S3, waste water microelectrolysis processing, by S1, treated that waste water is passed into micro cell, and iron carbon is covered in micro cell and is filled out
Material, micro cell bottom are equipped with aeration tube, and waste water carries out microelectrolysis processing；
S4, waste water neutralization precipitation detect the Ph of waste water, carry out neutralization precipitation according to the Ph of detection, if detection waste water is acidity, first
Add alkali to be adjusted to alkalinity, and settle sediment, then acid adding is adjusted to acidity again, settles sediment again；
S5, waste water evaporation process obtain concentrate using vacuum distillation, and evaporation concentrated solution obtains crude salt；
S6, crude salt purified treatment, crude salt are added distilled water, crude salt are completely dissolved to obtain lysate, lysate is carried out secondary
Resin adsorption processing carries out waste water evaporation process, obtains concentrate using vacuum distillation after resin adsorption processing, is concentrated by evaporation
The abraum salt that liquid is recycled.
Further, it is styrene-styrene copolymer macroreticular resin, HYA-105 type macropore that resin is adsorbed in the S2
The one of which adsorbed resin, carry thiourea resin.
Further, Ultra filtration membrane is used in the S1 in ultra-filtration and separation, the pore size filter of ultrafiltration membrane is 0.01-0.1
Micron.
Further, acid used in the S4 is one kind of hydrochloric acid, nitric acid, sulfuric acid, and alkali used in the S3 is hydrogen
The one of which of sodium oxide molybdena, potassium hydroxide.
Further, in the S5, concentrate is in equipment of crystallisation by cooling, crystallisation by cooling after concentration, after the completion of crystallization, from
Heart separation, efficiently separates chlorination ammonium salt and mother liquor, the mother liquor is further concentrated, and crystallisation by cooling, obtains ammonium chloride again
Salt merges two subcrystalline chlorination ammonium salts.
Further, after being concentrated under reduced pressure in S5, electrodialysis concentration is carried out, concentrate is obtained after the completion of concentration.
The present invention has the advantage that
(1) the abraum salt recovery method of the salt of the invention containing high strength ammonium-chloride, step is simple, easy to operate, practical.
(2) rate of recovery of the abraum salt recovery method of the salt of the invention containing high strength ammonium-chloride, chlorination ammonium salt is high, chlorine after the recovery
Change the purity is high of ammonium salt.
(3) the abraum salt recovery method of the salt of the invention containing high strength ammonium-chloride, it is applicable for a variety of different waste water, it pushes away
Wide strong applicability, save the cost.
Specific embodiment
With reference to embodiment, the present invention is furture elucidated, it should be understood that following specific embodiments are only used for
It is bright the present invention rather than limit the scope of the invention.
Embodiment 1
A kind of abraum salt recovery method of the salt containing high strength ammonium-chloride, comprises the following steps that:
S1, waste water hyperfiltration separation, waste water is settled, is separated after ultrafiltration after sedimentation,
S2, waste water resin adsorption, waste water is passed into resin adsorption tower, using absorption resin to waste water adsorption treatment；
S3, waste water microelectrolysis processing, by S1, treated that waste water is passed into micro cell, and iron carbon is covered in micro cell and is filled out
Material, micro cell bottom are equipped with aeration tube, and waste water carries out microelectrolysis processing；
S4, waste water neutralization precipitation detect the Ph of waste water, carry out neutralization precipitation according to the Ph of detection, if detection waste water is acidity, first
Add alkali to be adjusted to alkalinity, and settle sediment, then acid adding is adjusted to acidity again, settles sediment again；
S5, waste water evaporation process obtain concentrate using vacuum distillation, and evaporation concentrated solution obtains crude salt；
S6, crude salt purified treatment, crude salt are added distilled water, crude salt are completely dissolved to obtain lysate, lysate is carried out secondary
Resin adsorption processing carries out waste water evaporation process, obtains concentrate using vacuum distillation after resin adsorption processing, is concentrated by evaporation
The abraum salt that liquid is recycled.
In the present embodiment, it is styrene-styrene copolymer macroreticular resin, HYA-105 type macropore that resin is adsorbed in S2
The one of which adsorbed resin, carry thiourea resin.
In the present embodiment, Ultra filtration membrane is used in S1 in ultra-filtration and separation, the pore size filter of ultrafiltration membrane is 0.01-0.1
Micron.
In the present embodiment, acid used in S4 is one kind of hydrochloric acid, nitric acid, sulfuric acid, and alkali used in the S3 is hydrogen
The one of which of sodium oxide molybdena, potassium hydroxide.
In the present embodiment, in S5, concentrate is in equipment of crystallisation by cooling, crystallisation by cooling after concentration, after the completion of crystallization, from
Heart separation, efficiently separates chlorination ammonium salt and mother liquor, the mother liquor is further concentrated, and crystallisation by cooling, obtains ammonium chloride again
Salt merges two subcrystalline chlorination ammonium salts.
In the present embodiment, after being concentrated under reduced pressure in S5, electrodialysis concentration is carried out, concentrate is obtained after the completion of concentration.
The technical means disclosed in the embodiments of the present invention is not limited only to technological means disclosed in above embodiment, further includes
Technical solution consisting of any combination of the above technical features.It should be pointed out that for those skilled in the art
For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (6)
1. a kind of abraum salt recovery method of salt containing high strength ammonium-chloride, it is characterised in that:
It comprises the following steps that:
S1, waste water hyperfiltration separation, waste water is settled, is separated after ultrafiltration after sedimentation,
S2, waste water resin adsorption, waste water is passed into resin adsorption tower, using absorption resin to waste water adsorption treatment；
S3, waste water microelectrolysis processing, by S1, treated that waste water is passed into micro cell, and iron carbon is covered in micro cell and is filled out
Material, micro cell bottom are equipped with aeration tube, and waste water carries out microelectrolysis processing；
S4, waste water neutralization precipitation detect the Ph of waste water, carry out neutralization precipitation according to the Ph of detection, if detection waste water is acidity, first
Add alkali to be adjusted to alkalinity, and settle sediment, then acid adding is adjusted to acidity again, settles sediment again；
S5, waste water evaporation process obtain concentrate using vacuum distillation, and evaporation concentrated solution obtains crude salt；
S6, crude salt purified treatment, crude salt are added distilled water, crude salt are completely dissolved to obtain lysate, lysate is carried out secondary
Resin adsorption processing carries out waste water evaporation process, obtains concentrate using vacuum distillation after resin adsorption processing, is concentrated by evaporation
The abraum salt that liquid is recycled.
2. a kind of abraum salt recovery method of the salt containing high strength ammonium-chloride as described in claim 1, it is characterised in that: in the S2
Absorption resin is styrene-styrene copolymer macroreticular resin, HYA-105 type macroporous absorbent resin, carries thiourea resin wherein
It is a kind of.
3. a kind of abraum salt recovery method of the salt containing high strength ammonium-chloride as described in claim 1, it is characterised in that: in the S1
Ultra filtration membrane is used in ultra-filtration and separation, the pore size filter of ultrafiltration membrane is 0.01-0.1 microns.
4. a kind of abraum salt recovery method of the salt containing high strength ammonium-chloride as described in claim 1, it is characterised in that: in the S4
Acid used is one kind of hydrochloric acid, nitric acid, sulfuric acid, and alkali used in the S3 is the one of which of sodium hydroxide, potassium hydroxide.
5. a kind of abraum salt recovery method of the salt containing high strength ammonium-chloride as described in claim 1, it is characterised in that: the S5
In, concentrate is in equipment of crystallisation by cooling, crystallisation by cooling after concentration, and after the completion of crystallization, centrifuge separation efficiently separates ammonium chloride
Salt and mother liquor, the mother liquor are further concentrated, again crystallisation by cooling, obtain chlorination ammonium salt, by two subcrystalline chlorination ammonium salts
Merge.
6. a kind of abraum salt recovery method of the salt containing high strength ammonium-chloride as described in claim 1, it is characterised in that: depressurized in S5
After concentration, electrodialysis concentration is carried out, concentrate is obtained after the completion of concentration.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811650110.7A CN109592831A (en) | 2018-12-31 | 2018-12-31 | A kind of abraum salt recovery method of the salt containing high strength ammonium-chloride |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811650110.7A CN109592831A (en) | 2018-12-31 | 2018-12-31 | A kind of abraum salt recovery method of the salt containing high strength ammonium-chloride |
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| CN109592831A true CN109592831A (en) | 2019-04-09 |
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| CN201811650110.7A Pending CN109592831A (en) | 2018-12-31 | 2018-12-31 | A kind of abraum salt recovery method of the salt containing high strength ammonium-chloride |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111268843A (en) * | 2020-02-28 | 2020-06-12 | 河北大鹏医药化工有限公司 | Process for recovering nitric acid from nitrified wastewater |
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| CN104140174A (en) * | 2014-07-18 | 2014-11-12 | 燕山大学 | Combined treatment method for ammonia chloride waste water through rare earth extraction separation |
| CN106565045A (en) * | 2015-10-10 | 2017-04-19 | 麦王环境技术股份有限公司 | Complete equipment for stainless steel pickling wastewater treatment and resource recycling and treatment process |
| CN107235534A (en) * | 2017-06-06 | 2017-10-10 | 南京工业大学 | A kind of nanofiltration separation method of monovalence mixed salt solution |
| CN107311374A (en) * | 2017-05-30 | 2017-11-03 | 毛强平 | The Zero-discharge treating process and device of a kind of coal chemical industrial waste water |
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2018
- 2018-12-31 CN CN201811650110.7A patent/CN109592831A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103880232A (en) * | 2013-03-25 | 2014-06-25 | 北京纬纶华业环保科技股份有限公司 | Treatment system and method for organic salt-containing wastewater |
| CN104140174A (en) * | 2014-07-18 | 2014-11-12 | 燕山大学 | Combined treatment method for ammonia chloride waste water through rare earth extraction separation |
| CN106565045A (en) * | 2015-10-10 | 2017-04-19 | 麦王环境技术股份有限公司 | Complete equipment for stainless steel pickling wastewater treatment and resource recycling and treatment process |
| CN107311374A (en) * | 2017-05-30 | 2017-11-03 | 毛强平 | The Zero-discharge treating process and device of a kind of coal chemical industrial waste water |
| CN107235534A (en) * | 2017-06-06 | 2017-10-10 | 南京工业大学 | A kind of nanofiltration separation method of monovalence mixed salt solution |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111268843A (en) * | 2020-02-28 | 2020-06-12 | 河北大鹏医药化工有限公司 | Process for recovering nitric acid from nitrified wastewater |
| CN111268843B (en) * | 2020-02-28 | 2022-04-22 | 河北大鹏医药化工有限公司 | Process for recovering nitric acid from nitrified wastewater |
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Application publication date: 20190409 |