CN108314230A - A kind of coal chemical industry sewage processing system - Google Patents
A kind of coal chemical industry sewage processing system Download PDFInfo
- Publication number
- CN108314230A CN108314230A CN201810083610.0A CN201810083610A CN108314230A CN 108314230 A CN108314230 A CN 108314230A CN 201810083610 A CN201810083610 A CN 201810083610A CN 108314230 A CN108314230 A CN 108314230A
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- CN
- China
- Prior art keywords
- reverse osmosis
- chemical industry
- coal chemical
- osmosis water
- sewage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- C02F1/22—Treatment of water, waste water, or sewage by freezing
-
- 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
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
-
- 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
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
-
- 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
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Abstract
The present invention relates to a kind of coal chemical industry sewage processing system, including it is sequentially connected：Former pond, husky cylinder filter device, first-stage reverse osmosis water treatment facilities, two-pass reverse osmosis water treatment facilities, three-level reverse osmosis water disposal facility, equipment of crystallisation by cooling and centrifugal device；Reverse osmosis water disposal facility is also connected with water purifying tank.The coal chemical industry sewage processing system of the present invention is suitable for the desalination reuse of coal chemical industry sewage, can realize that high-recovery is run, and high strong brine can realize standard discharge or be back to production.The coal chemical industry sewage processing system of the present invention, the salt in sewage can be used for recycling, corresponding different salt at different temperature carries out it centrifugal treating again after crystallizing, and realizes efficient recycling, the investment for being concentrated by evaporation process and operating cost are avoided, and the purity of crystal salt is high.
Description
Technical field
The present invention relates to a kind of purified treatment of the dense salt waste water of coal chemical industry and pure salt recovery process, more particularly to a kind of coalifications
Work sewage disposal system.
Background technology
Coal chemical industry process be one kind using coal as raw material, through chemical process make coal be converted into gas, liquid and solid fuel with
And the industrial process of chemicals, include mainly coal gasification, purification, synthesis, liquefaction, destructive distillation and tar production and calcium carbide second
The techniques such as ethynylation work.With the continuous reduction of world petroleum resource, risen with the coal chemical industry of new generation that coal gasification is leading,
But in this technical process, due to having a large amount of salt and impurity in the chemicals of raw water, coal gasification and technical process addition
In the presence of so that gas washing wastewater, circulation draining, chemical water station draining and full factory's life, chemical examination, ground flushing water
Etc. processes can all assemble a large amount of industrial brine waste, such brine waste amount is about 80~10,000,000 tons/year, and is mainly contained
There are organic matter, heavy metal chromophore, auxochrome and carnallite.In these components, be primarily due to Coal Gasification Technology or
The difference in coal gas source can lead to occur in production process some hardly degraded organic substances such as phenol, quinolines and indoles, from
And so that the outer draining of the coal chemical industry CODCr values after biochemical processing process are extremely difficult to discharge standard, and cause environment
Pollution, since the scarcity and shortage of water resource receive sewage body, such Coal Chemical Engineering Project generally presses zero-emission and salt Resource recovery
Consider.When CODCr concentration is more than 1000mg/L in brine waste of the waste water after biochemical treatment and reuse, cannot directly it arrange first
It puts, and can to generate a large amount of foam in subsequent brine evaporization process, influence evaporation effect and the purity of salt；Secondly,
The presence of heavy metal influences the quality of salt；Furthermore the presence of chromophore and auxochrome can make coal chemical industrial waste water do well again
Degree and the very high problem of turbidity.In coal chemical industry produces waste water collection process, the salts substances in waste water can be concentrated gradually, and
Its TDS content is set to be up to 30000~350000mg/L, and mainly with NaCl, Na2SO4、NaNO3Form exist, if by this
Class brine waste is not pocessed and direct emission, causes environmental pollution, not only result in soil salinization of soil, influence water quality and
Soil property destroys soil texture, influences ecological environment, and can slattern a large amount of NaCl and Na contained in concentrated water2SO4Etc. useful
Substance is unfavorable for realizing circular economy；And if it is diluted, discharge, then do not solved not only again after discharge standard to be achieved
Certainly problem of environmental pollution, the dosage for also adding dilution water make cost further increase；If by this part water return mechanism
It is used as return water or washings, then due to the presence of various salinities in water and the continuous accumulation in cyclic process, finally
The growth that can inhibit microorganism hinders the postprocessing working procedures of waste water.In addition the presence of the substances such as villaumite and sulfate is also in waste water
The generation for phenomena such as structure, burn into blocking and the ooze of equipment can be caused to deposit.
Currently, in the treatment technology of the substances such as coal chemical industry CODCr, heavy metal, ammonia nitrogen, coloration and turbidity, absorption method by
, simple operation and other advantages at low cost in its and receive extensive research and concern, as prior art CN103288298A is disclosed
" a kind of new process of processing coking wastewater and coal chemical industrial waste water ", be realized using resin sorbent it is organic to coal chemical industry residual
Stay the processing of object.There is organic residue concentration high (100mg/L), pretreatment difficulty for such method greatly, intensity difference, used
The defects of adsorbent is broken serious in journey, short life.
In addition, for the purification and purification of salt in coal chemical industrial waste water, traditional natural energy evaporative freezing crystal desalination method profit
With solar energy, high strong brine is gradually evaporated under field conditions (factors), realizes the crystallization of salt.But such technology is mainly used for salt lake halogen
The separation of the clean manufacturing and sodium sulphate, sodium chloride salt of water, is not directly used in and handles coal chemical industry brine waste.
Furthermore there is two following disadvantages in process of production for such technique：First, production process is typically all open work, steam
The moisture of hair is affected by meteorological condition, and production is difficult to continuously, need to occupy prodigious land area, to cause not
The necessary wasting of resources；Second is that the limitation of the characteristics of due to technique itself and itself technological principle so that obtained through this technique
Solid salt be sodium chloride and saltcake complex salt, cause solids product that cannot meet the market demand, also need to continue to detach, cause
The wasting of resources and cost increase.
Invention content
The invention solves in the prior art the technical issues of, a kind of coal chemical industry sewage processing system is provided.
In order to solve the above-mentioned technical problem, technical scheme of the present invention is specific as follows：
A kind of coal chemical industry sewage processing system, including it is sequentially connected：
Former pond, husky cylinder filter device, first-stage reverse osmosis water treatment facilities, two-pass reverse osmosis water treatment facilities, three-level are anti-
Permeate water treatment facilities, equipment of crystallisation by cooling and centrifugal device；
The first-stage reverse osmosis water treatment facilities, the two-pass reverse osmosis water treatment facilities and the three-level reverse osmosis water
Processing unit is also connected with water purifying tank respectively；
The former pond is used for installing pending coal chemical industry sewage；
The sand cylinder filter device is used for carrying out primary filter to coal chemical industry sewage；
The first-stage reverse osmosis water treatment facilities is used for carrying out reverse-osmosis treated to coal chemical industry sewage, obtained water purification conveying
To water purifying tank, strong sewage is delivered to the two-pass reverse osmosis water treatment facilities；
The two-pass reverse osmosis water treatment facilities is used for carrying out reverse osmosis again to the coal chemical industry sewage Jing Guo reverse-osmosis treated
Processing, obtained water purification are delivered to water purifying tank thoroughly, and strong sewage is delivered to the three-level reverse osmosis water disposal facility；
The three-level reverse osmosis water disposal facility is used for carrying out reverse osmosis again to the coal chemical industry sewage Jing Guo reverse-osmosis treated
Processing, obtained water purification are delivered to water purifying tank thoroughly, and strong sewage is delivered to equipment of crystallisation by cooling；
The equipment of crystallisation by cooling is used for carrying out crystallisation by cooling to strong sewage, and the obtained crystallization is delivered to centrifugation dress
It sets；
The centrifugal device is used for carrying out centrifugal treating to crystallization, is collected to obtained dry crystalline substance, strong sewage is delivered to
The three-level reverse osmosis water disposal facility carries out circular treatment.
In the above-mentioned technical solutions, the speed of the treated sewage of the first-stage reverse osmosis water treatment facilities is：200T/h.
In the above-mentioned technical solutions, the speed of the output water purification of the first-stage reverse osmosis water treatment facilities is：120T/h.
In the above-mentioned technical solutions, the speed of the treated sewage of the two-pass reverse osmosis water treatment facilities is：80T/h.
In the above-mentioned technical solutions, the speed of the output water purification of the two-pass reverse osmosis water treatment facilities is：48T/h.
In the above-mentioned technical solutions, the speed of the treated sewage of the three-level reverse osmosis water disposal facility is：32T/h.
In the above-mentioned technical solutions, the speed of the output water purification of the three-level reverse osmosis water disposal facility is：12T/h.
In the above-mentioned technical solutions, the crystallization temperature of the equipment of crystallisation by cooling is 5~10 DEG C.
The present invention has advantageous effect below：
The coal chemical industry sewage processing system of the present invention is suitable for the desalination reuse of coal chemical industry sewage, can realize high recycling
Rate is run, and high strong brine can realize standard discharge or be back to production.
The coal chemical industry sewage processing system of the present invention can be used for recycling the salt in sewage, and corresponding different salt is in difference
At a temperature of carry out centrifugal treating again after crystallizing to it, realize efficient recycling, avoid the throwing for being concentrated by evaporation process
Money and operating cost, and the purity of crystal salt is high.
The coal chemical industry sewage processing system of the present invention can be used for carrying out circular treatment to sewage, by centrifugal treating
Sewage can be delivered back into three-level reverse osmosis water disposal facility and be recycled, and improve the treatment effect of sewage.
The coal chemical industry sewage processing system of the present invention can make sewage disposal realize automated production, without artificial real-time
Operation, improves the treatment effeciency of sewage.
Description of the drawings
Invention is further described in detail with reference to the accompanying drawings and detailed description.
Fig. 1 is the structural schematic diagram of the coal chemical industry sewage processing system of the present invention.
Reference numeral in figure is expressed as：
1- former ponds；2- sand cylinder filter devices；3- first-stage reverse osmosis water treatment facilities；4- two-pass reverse osmosis water process fills
It sets；5- equipment of crystallisation by cooling；6- centrifugal devices；7- water purifying tanks；8- three-level reverse osmosis water disposal facilities.
Specific implementation mode
The coal chemical industry sewage processing system of the present invention can be used for recycling the salt in sewage, and corresponding different salt is in difference
At a temperature of carry out centrifugal treating again after crystallizing to it, realize efficient recycling, avoid the throwing for being concentrated by evaporation process
Money and operating cost, and the purity of crystal salt is high.
The present invention is described in detail below in conjunction with the accompanying drawings.
As shown in Figure 1, the coal chemical industry sewage processing system of the present invention includes sequentially connected：Former pond 1, husky cylinder filtering dress
Set 2, first-stage reverse osmosis water treatment facilities 3, two-pass reverse osmosis water treatment facilities 4, three-level reverse osmosis water disposal facility 8, cooling knot
Brilliant device 5 and centrifugal device 6.First-stage reverse osmosis water treatment facilities 3, two-pass reverse osmosis water treatment facilities 4 and three-level reverse osmosis
Permeable processing unit 8 is also connected with water purifying tank 7 respectively.
Former pond 1 is used for installing pending coal chemical industry sewage；Husky cylinder filter device 2 is used for carrying out just coal chemical industry sewage
Grade filtering；First-stage reverse osmosis water treatment facilities 3 is used for carrying out reverse-osmosis treated to coal chemical industry sewage, and obtained water purification is delivered to only
Pond 7, strong sewage are delivered to the two-pass reverse osmosis water treatment facilities 4；Two-pass reverse osmosis water treatment facilities 4 is used for by anti-
The coal chemical industry sewage of infiltration processing carries out secondary reverse-osmosis treated, and obtained water purification is delivered to water purifying tank 7, and strong sewage is delivered to three
Grade reverse osmosis water disposal facility 8；Three-level reverse osmosis water disposal facility 8 is used for carrying out the coal chemical industry sewage Jing Guo reverse-osmosis treated
Reverse-osmosis treated again, obtained water purification are delivered to water purifying tank 7, and strong sewage is delivered to equipment of crystallisation by cooling 5；Crystallisation by cooling fills
It sets 5 to be used for carrying out crystallisation by cooling to strong sewage, the obtained crystallization is delivered to centrifugal device 6；Centrifugal device 6 is used for crystallization
Centrifugal treating is carried out, obtained dry crystalline substance is collected, strong sewage is delivered to three-level reverse osmosis water disposal facility 8 and carries out at cycle
Reason.
The speed of the treated sewage of first-stage reverse osmosis water treatment facilities 3 is：200T/h.First-stage reverse osmosis water treatment facilities 3
The speed of output water purification be：120T/h.The speed of the treated sewage of two-pass reverse osmosis water treatment facilities 4 is：80T/h.Two level
The speed of the output water purification of reverse osmosis water disposal facility 4 is：48T/h.The speed of the treated sewage of three-level reverse osmosis water disposal facility 8
Degree is：32T/h.The speed of the output water purification of three-level reverse osmosis water disposal facility 8 is：12T/h.The crystallization of equipment of crystallisation by cooling 5
Temperature is 5~10 DEG C.
When the coal chemical industry sewage processing system of the present invention is used for sewage disposal, sodium hydroxide adjusting is added in former pond 1
PH value is 2~3；The total suspended solid concentration crystallized in equipment of crystallisation by cooling 5 can reach 30000mg/L or more, by centrifugation
After the centrifugal treating of device 6, so that it may efficiently to recycle the salt in sewage, so as to avoid be concentrated by evaporation process investment and
Operating cost.Total suspended solid in water purifying tank 7 can reach 300mg/L hereinafter, having reached the water quality requirement of reuse.
In other specific implementation modes, the crystallization temperature of equipment of crystallisation by cooling can also be adjusted, so realize for
The crystallization and separation of different salt, which is not described herein again.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (8)
1. a kind of coal chemical industry sewage processing system, which is characterized in that including sequentially connected：
Former pond (1), husky cylinder filter device (2), first-stage reverse osmosis water treatment facilities (3), two-pass reverse osmosis water treatment facilities
(4), three-level reverse osmosis water disposal facility (8), equipment of crystallisation by cooling (5) and centrifugal device (6)；
The first-stage reverse osmosis water treatment facilities (3), the two-pass reverse osmosis water treatment facilities (4) and the three-level are reverse osmosis
Water treatment facilities (8) is also connected with water purifying tank (7) respectively；
The former pond (1) is used for installing pending coal chemical industry sewage；
The sand cylinder filter device (2) is used for carrying out primary filter to coal chemical industry sewage；
The first-stage reverse osmosis water treatment facilities (3) is used for carrying out reverse-osmosis treated to coal chemical industry sewage, obtained water purification conveying
To water purifying tank (7), strong sewage is delivered to the two-pass reverse osmosis water treatment facilities (4)；
The two-pass reverse osmosis water treatment facilities (4) is used for carrying out the coal chemical industry sewage Jing Guo reverse-osmosis treated reverse osmosis again
Processing, obtained water purification are delivered to water purifying tank (7), and strong sewage is delivered to the three-level reverse osmosis water disposal facility (8)；
The three-level reverse osmosis water disposal facility (8) is used for carrying out the coal chemical industry sewage Jing Guo reverse-osmosis treated reverse osmosis again
Processing, obtained water purification are delivered to water purifying tank (7), and strong sewage is delivered to equipment of crystallisation by cooling (5)；
The equipment of crystallisation by cooling (5) is used for carrying out crystallisation by cooling to strong sewage, and the obtained crystallization is delivered to centrifugal device
(6)；
The centrifugal device (6) is used for carrying out centrifugal treating to crystallization, is collected to obtained dry crystalline substance, strong sewage is delivered to institute
It states three-level reverse osmosis water disposal facility (8) and carries out circular treatment.
2. coal chemical industry sewage processing system according to claim 1, which is characterized in that the first-stage reverse osmosis water process dress
The speed for setting the treated sewage of (3) is：200T/h.
3. coal chemical industry sewage processing system according to claim 1, which is characterized in that the first-stage reverse osmosis water process dress
The speed for setting the output water purification of (3) is：120T/h.
4. coal chemical industry sewage processing system according to claim 1, which is characterized in that the two-pass reverse osmosis water process dress
The speed for setting the treated sewage of (4) is：80T/h.
5. coal chemical industry sewage processing system according to claim 1, which is characterized in that the two-pass reverse osmosis water process dress
The speed for setting the output water purification of (4) is：48T/h.
6. coal chemical industry sewage processing system according to claim 1, which is characterized in that the three-level anti-penetration wastewater disposal dress
The speed for setting the treated sewage of (8) is：32T/h.
7. coal chemical industry sewage processing system according to claim 1, which is characterized in that the three-level anti-penetration wastewater disposal dress
The speed for setting the output water purification of (8) is：12T/h.
8. coal chemical industry sewage processing system according to claim 1, which is characterized in that the equipment of crystallisation by cooling (5)
Crystallization temperature is 5~10 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810083610.0A CN108314230A (en) | 2018-01-29 | 2018-01-29 | A kind of coal chemical industry sewage processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810083610.0A CN108314230A (en) | 2018-01-29 | 2018-01-29 | A kind of coal chemical industry sewage processing system |
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| Publication Number | Publication Date |
|---|---|
| CN108314230A true CN108314230A (en) | 2018-07-24 |
Family
ID=62888041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810083610.0A Pending CN108314230A (en) | 2018-01-29 | 2018-01-29 | A kind of coal chemical industry sewage processing system |
Country Status (1)
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| CN (1) | CN108314230A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109205851A (en) * | 2018-10-25 | 2019-01-15 | 中科协创环境科技江苏有限公司 | A kind of tail washings discharger handling coal chemical industry high-concentration sewage |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201817356U (en) * | 2010-06-21 | 2011-05-04 | 吴静璇 | Coking wastewater advanced treatment and reuse device by using ozone, active carbon and double-membrane process |
-
2018
- 2018-01-29 CN CN201810083610.0A patent/CN108314230A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201817356U (en) * | 2010-06-21 | 2011-05-04 | 吴静璇 | Coking wastewater advanced treatment and reuse device by using ozone, active carbon and double-membrane process |
Non-Patent Citations (1)
| Title |
|---|
| D,G.RANDALL等: "A succinct review of the treatment of Reverse Osmosis brines using Freeze Crystallization", 《JOURNAL OF WATER PROCESS ENGINEERING》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109205851A (en) * | 2018-10-25 | 2019-01-15 | 中科协创环境科技江苏有限公司 | A kind of tail washings discharger handling coal chemical industry high-concentration sewage |
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Application publication date: 20180724 |