CN108128950A - A kind of processing unit and its processing method of H acid waste water - Google Patents
A kind of processing unit and its processing method of H acid waste water Download PDFInfo
- Publication number
- CN108128950A CN108128950A CN201710941219.5A CN201710941219A CN108128950A CN 108128950 A CN108128950 A CN 108128950A CN 201710941219 A CN201710941219 A CN 201710941219A CN 108128950 A CN108128950 A CN 108128950A
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- resin
- waste water
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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
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
Abstract
The present invention provides a kind of H acid wastewater treatment equipments, and unit, evaporative crystallization unit are adjusted including adjusting unit, filter element, resin adsorption unit, the 2nd pH by sequentially connected first pH of pipeline；The resin adsorption unit includes the second segment absorption resin for being connected to the first segment absorption resin of the filter element, being connected between the first segment absorption resin and the 2nd pH adjusting units.The processing unit and its processing method of the H acid waste water of the present invention, COD can be made to be about 50000mg/L by two sections of resin adsorptions, the H acid waste water of 20000 times of coloration, inorganic salts 20%, it becomes colorless transparent, COD drops to the even lower COD of 1000mg/L~5000mg/L；It again after evaporation concentration method is handled, becomes colorless transparent, COD drops to 200mg/L hereinafter, inorganic salts≤2000mg/L.
Description
Technical field
This application involves a kind of field of waste water treatment, the particularly a kind of processing unit and its processing method of H acid waste water.
Background technology
H acid is a kind of important dyestuff intermediate, gives off a large amount of high concentrated organic wastewaters, abbreviation H in process of production
Sour waste water, pH value are about 2, COD about 50000mg/L, include the sulfate close to saturation state, organic concentration in waste water
Height, toxicity are big, are difficult to be effectively treated with conventional method.Current country H acid routine, which uses extraction and is concentrated by evaporation, to be combined
Technical finesse H acid waste water, this method operating procedure is complicated, extractant smell weight, and operating cost is high.
In view of this, it is necessary to a kind of processing unit and its processing method of improved H acid waste water are provided, it is above-mentioned to solve
Technical problem.
Invention content
One of to solve the above-mentioned problems, present applicant proposes a kind of processing units and its processing method of H acid waste water.
To achieve these goals, the application provides a kind of H acid wastewater treatment equipment, including sequentially connected by pipeline
First pH adjusts unit, filter element, resin adsorption unit, the 2nd pH and adjusts unit, evaporative crystallization unit；The resin adsorption
Unit includes being connected to the first segment absorption resin of the filter element, is connected to the first segment absorption resin and described second
PH adjusts the second segment absorption resin between unit.
As a further improvement on the present invention, the H acid wastewater treatment equipment, which further includes, is connected to the second segment absorption
With the enrichment unit of enrichment processing water between resin and the 2nd pH adjusting units.
As a further improvement on the present invention, the resin bed volume phase of first segment absorption resin and second segment absorption resin
Together.
For achieving the above object, the present invention also provides a kind of processing method of H acid waste water, include the following steps：S1.
Pending H acid waste water is introduced into the first pH and adjusts unit, is adjusted between pH to 1~7；S2. it will pass through the first pH and adjust unit
Waste water after adjusting introduces filter element, the filter residue being filtered to remove in waste water；S3. by the waste water after filtering with the stream of≤5BV/h
Amount passes sequentially through the first absorption resin, the second absorption resin；S4. the water outlet after absorption is introduced into the 2nd pH and adjusts unit tune
PH is saved, S5. is evaporated crystallization by the processing water introducing evaporative crystallization unit after unit is adjusted is adjusted by the 2nd pH.
As a further improvement on the present invention, the processing method of the H acid waste water further includes following steps：S3 steps are completed
After absorption, first segment absorption resin is desorbed, then cleaned with clear water with desorbing agent；The desorbing agent is weight percent
Than the sodium hydrate aqueous solution between being 5%~15%.
As a further improvement on the present invention, the amount of desorbing agent is no more than the resin bed volume of first segment absorption resin
2 times, desorption agent flux be 1BV/h~5BV/h.
As a further improvement on the present invention, the temperature of desorption process is 10 DEG C~60 DEG C.
As a further improvement on the present invention, the amount of clear water adsorbs 2 times of resin bed volume of resin for the first segment
~8 times, 2 times~8 times cleanings of cleaning moisture.
As a further improvement on the present invention, the processing method of the H acid waste water further includes following steps：Last batch
Water after cleaning for the first time is used to be configured the adsorbent of next batch, and the water after the n-th cleaning of last batch is used as next group
The N-1 times ejected wash water of secondary desorption and regeneration absorption resin, N >=2；Per a batch of last time ejected wash water tap water.
As a further improvement on the present invention, the processing method of the H acid waste water further includes following steps：Regeneration is completed
First segment absorption resin tower afterwards is exchanged with original second end resin adsorption position.
Beneficial effects of the present invention：The processing unit and its processing method of the H acid waste water of the present invention of the present invention, pass through two
Section resin adsorption can make COD be about 50000mg/L, the H acid waste water of 20000 times of coloration, inorganic salts 20%, become colorless
Bright, COD drops to the even lower COD of 1000mg/L~5000mg/L；Again after evaporation concentration method is handled, become colorless transparent,
COD drops to 200mg/L hereinafter, inorganic salts≤2000mg/L.
Description of the drawings
Attached drawing described herein is used for providing further understanding of the present application, forms the part of the application, this Shen
Illustrative embodiments and their description please do not form the improper restriction to the application for explaining the application.In the accompanying drawings：
Fig. 1 is the frame construction drawing of the processing unit of the H acid waste water of the present invention；
Fig. 2 is the process flow figure of the H acid waste water of the present invention.
Specific embodiment
Purpose, technical scheme and advantage to make the application are clearer, below in conjunction with the application specific embodiment and
Technical scheme is clearly and completely described in corresponding attached drawing.Obviously, described embodiment is only the application one
Section Example, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not doing
Go out all other embodiments obtained under the premise of creative work, shall fall in the protection scope of this application.
The embodiment of the present invention is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, and is only used for explaining the present invention, and is not considered as limiting the invention.
As shown in Figure 1, the H acid wastewater treatment equipments of the present invention include：It is adjusted by sequentially connected first pH of pipeline single
Member, filter element, resin adsorption unit, the 2nd pH adjust unit, evaporative crystallization unit；The resin adsorption unit includes connection
First segment absorption resin in the filter element, be connected to first segment absorption resin and the 2nd pH adjust unit it
Between second segment absorption resin.The H acid wastewater treatment equipment adsorbs waste water by two stage adsorption resin, adsorption efficiency
Height, and inorganic salts are not influenced adsorption effect in by solution.
The H acid wastewater treatment equipment, which further includes, is connected to the second segment absorption resin and the 2nd pH adjusting units
Between processing water enrichment unit, by resin adsorption unit absorption after processing water the unit enrichment after, Central Regulation pH.
Wherein, it will be appreciated by persons skilled in the art that in first segment absorption resin and second segment absorption resin " the
One " refers to flowing through sequentially for waste water with " second "；First segment adsorbs resin and second segment absorption resin is solid-state, is no different
Taste, there is no evaporating, emitting, dripping or leaking of liquid or gas, non-secondary pollution phenomenons in use to generate；Adsorption efficiency is high, and desorption and regeneration is easy.First
Section absorption resin and second segment absorption resin are identical or different, are to have answering for adsorption function to the organic matter in H acid waste water
Functional resin is closed, main ingredient is styrene and divinylbenzene；Such as first segment absorption resin and second segment adsorb resin
Selected from following resin：N-800, LY-008 of company of Yancheng City Ling Yi Environmental Protection Technology Co., Ltd production, U.S. Rohm Haas are public
Amberlite XAD-16, XAD-1600,4200CL of production are taken charge of, the ADS-600 of Du Sheng companies of U.S. production, U.S. Dow are public
The Duolite A7 of production are taken charge of, border on the sea the D-301 that resin Science and Technology Ltd. produces in Jiangsu Province, and the blue deep Special Resin in Xi'an is limited
The LS-16 of company of company production, the XAD-200 of company of Xi'an Sunresin New Materials Co., Ltd. production etc..
The removal rate of waste water organic matter after absorption generally up to more than 90%, does not generate secondary pollution, desorption rate is general
Up to more than 98%.And resin property is stablized, and service life is long.Resin has higher resistance to oxidation, acid and alkali-resistance, organic solvent-resistant
Etc. performances, under normal circumstances the year proportion of goods damageds be less than 15%.
And first segment absorption resin is identical with the resin bed volume of second segment absorption resin, the position of the two can be interchanged,
After carrying out desorption processing to the first segment absorption resin after using and second segment absorption resin, use below is not influenced.
As shown in Fig. 2, also a kind of processing method of H acid waste water of the present invention, includes the following steps：
S1. pending H acid waste water is introduced into the first pH and adjusts unit, between adjustment pH value to 1~7；
S2. the waste water after unit is adjusted will be adjusted by the first pH and introduces filter element, be filtered to remove insoluble in waste water
The filter residues such as property impurity；
S3. the waste water after filtering is passed sequentially through into the first absorption resin with the flow of≤8BV/h, the second absorption is set
Fat, the naphthalene sulfonic acids series organic matters such as chromotropic acid, T acid, H acid in waste water are able to adsorb, detach on the resin adsorption unit
And enrichment；Wherein BV refers to the resin bed volume of the first absorption resin or the second absorption resin, and " flow of≤8BV/h " refers to
It is：The flow of waste water is 8 times that the volume for adsorbing resin per hour through first is not more than its resin bed；
S4. the water outlet after absorption is introduced into the 2nd pH and adjusts unit addition sodium hydroxide adjusting pH to close neutrality；
S5. the processing water introducing evaporative crystallization unit after unit is adjusted will be adjusted by the 2nd pH and is evaporated crystallization, is tied
The mixing of one or both of anhydrous sodium sulphate or ammonium sulfate is generated after crystalline substance.
In S3 steps, the waste water after filtering is adsorbed successively by first segment absorption resin, second segment absorption resin, is given up
The naphthalene sulfonic acids series organic matters such as chromotropic acid, T acid, H acid in water are enriched with absorption in first segment adsorbs resin mostly, and second segment
It is to adsorb not by the residual volume of first segment absorption resin adsorption to adsorb resin.
The processing method of the H acid waste water further includes following steps：After S3 steps complete absorption, resin is adsorbed to first segment
Desorption and regeneration is carried out, then cleaned with clear water with desorbing agent.Use, adsorption effect and absorption can be adsorbed after resin desorption again
Measure it is unchanged, and be desorbed generate solution containing naphthalene sulfonate can be used as corresponding raw material be used for produce water-reducing agent.
Wherein, the desorbing agent is weight percentage 5%~15% sodium hydrate aqueous solution, and the amount of desorbing agent is not more than
2 times of the resin bed volume of the first segment absorption resin, the temperature of desorption process is 10 DEG C~60 DEG C, and the flow of desorbing agent is
1BV/h~5BV/h makes to be adsorbed in naphthalene sulfonic acids series Acidic organic matter molecule and the hydroxides such as chromotropic acid, T acid, H acid in resin
Sodium neutralization reaction becomes corresponding readily soluble naphthalene sulfonate salt and desorption and regeneration.
Resin through sodium hydroxide solution desorption is again with 2 times~8 times of the resin bed volume of first segment absorption resin
Clear water cleaning, the cleaning cleaning of moisture 2 times~8 times.Water after the first time cleaning of last batch is used to that next batch to be configured
Adsorbent, the water after the n-th cleaning of last batch are used as the N-1 times ejected wash water of next batch desorption and regeneration absorption resin, N
≥2；Per a batch of last time ejected wash water tap water.That is, the ejected wash water of first time is prepared for next batch desorption
Agent solution is desorbed, second of ejected wash water is used for the first time ejected wash water of next batch, and third time ejected wash water is for next batch
Second of ejected wash water, and so on, each last time ejected wash water is cleaned with fresh tap water, can reduce ejected wash water use in this way
Amount.
The processing method of the H acid waste water further includes：By the first segment absorption resin and original second after the completion of regeneration
Section absorption resin position is exchanged.Also the second segment absorption that the first segment absorption resin after the completion of will regenerating is adsorbed as next group
Resin uses, and the former second segment absorption resin not being desorbed uses, and as the first segment absorption resin that next group adsorbs with this
Cycle.
The processing unit of the H acid waste water of the present invention of the present invention and its scope of application of processing method are wide, and practicability is good.It is useless
Organic substance in water concentration can be handled from tens to PPM up to ten thousand using this method, and adsorption effect not inorganic salts in by solution
Influence.Also, this method is simple for process, is not required to special installation, and technology is easily mastered, easy to operate, in operation thermal energy and
Power consumption is relatively low.
In conclusion the processing unit and its processing method of the H acid waste water of the present invention of the present invention, are inhaled by two sections of resins
It is attached COD can be made to be about 50000mg/L, the H acid waste water of 20000 times of coloration, inorganic salts 20%, become colorless transparent, COD is dropped to
COD even lower 1000mg/L~5000mg/L；Again after evaporation concentration method is handled, become colorless transparent, COD is dropped to
200mg/L is hereinafter, inorganic salts≤2000mg/L.
In the description of the present invention, unless otherwise prescribed and limit, it should be noted that term " installation ", " connected ",
" connection " should be interpreted broadly, for example, it may be the connection inside mechanical connection or electrical connection or two elements, it can
To be to be connected directly, can also be indirectly connected by intermediary, it for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term.
It should be appreciated that although this specification is described according to embodiment, not each embodiment is only only comprising one
Vertical technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should be by specification
As an entirety, the technical solutions in each embodiment can also be properly combined, formed it will be appreciated by those skilled in the art that
Other embodiment.
Those listed above is a series of to be described in detail illustrating only for possible embodiments of the invention,
Not to limit the scope of the invention, all equivalent embodiments made without departing from skill spirit of the present invention or change should all
It is included within protection scope of the present invention.
Claims (10)
1. a kind of H acid wastewater treatment equipment, it is characterised in that：The H acid wastewater treatment equipment includes being sequentially connected by pipeline
The first pH adjust unit, filter element, resin adsorption unit, the 2nd pH adjust unit, evaporative crystallization unit；The resin is inhaled
Coupon member includes being connected to the first segment absorption resin of the filter element, is connected to first segment absorption resin and described the
Two pH adjust the second segment absorption resin between unit.
2. H acid wastewater treatment equipment according to claim 1, it is characterised in that：The H acid wastewater treatment equipment further includes
It is connected between the second segment absorption resin and the 2nd pH adjusting units with the enrichment unit of enrichment processing water.
3. H acid wastewater treatment equipment according to claim 1, it is characterised in that：First segment adsorbs resin and second segment is inhaled
The resin bed volume of attached resin is identical.
4. a kind of processing method of H acid waste water, includes the following steps：
S1. pending H acid waste water is introduced into the first pH and adjusts unit, adjusted between pH to 1~7；
S2. the waste water after unit is adjusted will be adjusted by the first pH and introduces filter element, the filter residue being filtered to remove in waste water；
S3. the waste water after filtering is passed sequentially through into the first absorption resin, the second absorption resin with the flow of≤8BV/h；
S4. the water outlet after absorption is introduced into the 2nd pH and adjusts unit adjusting pH,
S5. the processing water introducing evaporative crystallization unit after unit is adjusted will be adjusted by the 2nd pH and is evaporated crystallization.
5. the processing method of H acid waste water according to claim 4, it is characterised in that：The processing method of the H acid waste water is also
Include the following steps：After S3 steps complete absorption, first segment absorption resin is desorbed, then carried out clearly with clear water with desorbing agent
It washes；It is sodium hydrate aqueous solution between 5%~15% that the desorbing agent, which is weight percentage,.
6. the processing method of H acid waste water according to claim 5, it is characterised in that：The amount of desorbing agent is no more than described the
2 times of the resin bed volume of one section of absorption resin, desorption agent flux are 1BV/h~5BV/h.
7. the processing method of H acid waste water according to claim 5, it is characterised in that：The temperature of desorption process for 10 DEG C~
60℃。
8. the processing method of H acid waste water according to claim 5, it is characterised in that：The amount of clear water is inhaled for the first segment
2 times of the resin bed volume of attached resin~8 times, 2 times~8 times cleanings of cleaning moisture.
9. the processing method of H acid waste water according to claim 8, it is characterised in that：The processing method of the H acid waste water is also
Include the following steps：Water after the first time cleaning of last batch is used to be configured the adsorbent of next batch, the N of last batch
Water after secondary cleaning is used as the N-1 times ejected wash water of next batch desorption and regeneration absorption resin, N >=2；Per it is a batch of last
Secondary ejected wash water tap water.
10. the processing method of H acid waste water according to claim 5, it is characterised in that：The processing method of the H acid waste water
Further include following steps：First segment absorption resin tower after the completion of regeneration is exchanged with original second end resin adsorption position.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710941219.5A CN108128950A (en) | 2017-10-11 | 2017-10-11 | A kind of processing unit and its processing method of H acid waste water |
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| CN201710941219.5A CN108128950A (en) | 2017-10-11 | 2017-10-11 | A kind of processing unit and its processing method of H acid waste water |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109516622A (en) * | 2018-11-16 | 2019-03-26 | 山东聊城中盛蓝瑞化工有限公司 | The treatment process of high-salt wastewater in a kind of benzyl alcohol production system |
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Application publication date: 20180608 |