CN102963996A - Method for treating aqueous solution - Google Patents
Method for treating aqueous solution Download PDFInfo
- Publication number
- CN102963996A CN102963996A CN2011102559863A CN201110255986A CN102963996A CN 102963996 A CN102963996 A CN 102963996A CN 2011102559863 A CN2011102559863 A CN 2011102559863A CN 201110255986 A CN201110255986 A CN 201110255986A CN 102963996 A CN102963996 A CN 102963996A
- Authority
- CN
- China
- Prior art keywords
- aqueous solution
- water
- pressure
- liquid phase
- organic solvent
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/005—Selection of auxiliary, e.g. for control of crystallisation nuclei, of crystal growth, of adherence to walls; Arrangements for introduction thereof
- B01D9/0054—Use of anti-solvent
-
- 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
- C02F1/26—Treatment of water, waste water, or sewage by extraction
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- 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
- C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
- C02F2103/365—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds from petrochemical industry (e.g. refineries)
-
- 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
- C02F2209/02—Temperature
-
- 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
- C02F2209/03—Pressure
Abstract
The invention discloses a method for treating aqueous solution, which comprises the following steps: mixing an effective amount of a water-soluble organic solvent with an aqueous solution at a first pressure to generate solids and a first liquid phase; separating the solids from the first liquid phase; and applying a second pressure lower than the first pressure to separate the first liquid phase into a gaseous organic phase and a second liquid phase.
Description
Technical field
The present invention relates to water technology, especially process the method for the aqueous solution.
Background technology
The water that nature not yet utilized and various waste water, for example sanitary wastewater and trade effluent usually contain and suspend or be dissolved in wherein impurity, thereby people have developed the multiple water treatment technology and remove impurity before being used or discharging at water.
For example, United States Patent (USP) discloses the method that a kind of processing is dissolved with the current of inorganics No. 6365051, and it comprises step: the organic solvent that (a) adds effective dose in the current comprises the inorganic precipitation of at least part of inorganics with formation; (b) from current, shift out most at least organic solvent with vacuum membrane distillation; And (c) after step (b), from current, shift out most at least inorganic precipitation.
Preceding method uses vacuum membrane distillation before shifting out inorganic precipitation, inorganic precipitation may stop up fenestra, and perhaps fouling on film is therefore not satisfactory.And, except inorganics, also may contain organism in the water, the organism in preceding method and the not mentioned removal water.
Existing other water technologies can not satisfy the actual needs of existing water treatment fully.
Therefore, need to provide method new or the improved processing aqueous solution.
Summary of the invention
One embodiment of the present of invention provide a kind of method of processing the aqueous solution, comprising: at the first pressure with the water-miscible organic solvent of effective dose and aqueous solution to produce solids and the first liquid phase; Separating solid substances and the first liquid phase; And apply be lower than the first pressure the second pressure so that the first liquid phase is divided into gaseous state organic phase and second liquid phase.
Embodiment
Approximate term in the specification sheets is used for modifying quantity, and expression the present invention is not limited to this concrete quantity, also comprises the part of the correction of the change that can not cause relevant basic function with approach acceptable of this quantity.Accordingly, modify a numerical value with " approximately ", " pact " etc., mean and the invention is not restricted to this accurate numerical value.In some example, approximate term may be corresponding to the precision of the instrument of measuring numerical value.
Mentioned numerical value comprises from low to high all numerical value of the unit increase in a unit among the present invention, supposes at least two unit, interval between any lower value and the high value herein.For instance, if the quantity of a component or the value of a processing parameter, such as, temperature, pressure, time etc. is from 1 to 90,20 to 80 better, 30 to 70 the bests, to want to express being set forth in this specification sheets that 15 to 85,22 to 68,43 to 51,30 to 32 numerical value such as grade have all understood.For less than 1 numerical value, 0.0001,0.001,0.01 or 0.1 is considered to a more suitable unit.The aforementioned special example that will express of just hoping, all are regarded as clearly being listed as in this manual in a similar manner in the minimum combinations of values between maximum of enumerating.
The aqueous solution that the present invention relates to can be takes from the water that nature not yet utilized, and also can be various waste water, such as sanitary wastewater and trade effluent etc.In certain embodiments, the aqueous solution involved in the present invention can be the waste water that produces in the crude oil extraction process, the waste water that for example produces in SAGD (steam assisted gravity drainage, the SAGD) process.With before organic solvent mixes, can carry out necessary pre-treatment to the aqueous solution first as required, such as the solid impurity by suspending in the methods such as filtrations, the precipitation removal water.
The aqueous solution can contain inorganic salt, organism or its combination.In certain embodiments, the aqueous solution can be total dissolved solidss and is higher than 6% or be higher than 10% high level salt solution.In certain embodiments, the aqueous solution contains at least a in ammonium radical ion, metal ion (such as sodium ion, calcium ion, magnesium ion, potassium ion etc.), acid ion (such as sulfate ion, chlorion, carbanion, silicate ion, nitrate ion and phosphate anion etc.) and the organism.
" water-miscible organic solvent " that the present invention relates to refers to can be with water section under one or more conditions or dissolve each other fully, but and under one or more conditions or by one or more step at least a portion change into gas phase and can with moisture from any organism.
This water-miscible organic solvent can be selected according to different application.In certain embodiments, the water-miscible organic solvent that the present invention relates to is gaseous state when normal temperature (about 25 ℃) normal pressure (about 1 normal atmosphere), and suitably intensified pressure (as at about 20 below the normal atmosphere) time is in a liquid state.In certain embodiments, described water-miscible organic solvent is the arbitrary combination of dme, ether, methyl ethyl ether, methylamine, dimethylamine or previous materials.
The first pressure involved in the present invention be water-miscible organic solvent can at least part of liquefaction and with at least part of pressure that dissolves each other of water, itself and temperature correlation connection.For example, temperature is lower, and the pressure that water-miscible organic solvent need to be liquefied fully is just lower, and the first pressure that applies is also corresponding just lower.In certain embodiments, to about 20 atmospheric scopes, and being blended in of water-miscible organic solvent and the aqueous solution is lower than about 80 ℃ temperature range and carries out the first pressure at about 1 normal atmosphere.
Water-miscible organic solvent can liquefaction afterwards directly with liquid form in the first pressure and aqueous solution, also can gaseous form introduce with in the first pressure liquefaction and and aqueous solution.
The water-miscible organic solvent of effective dose and the aqueous solution dissolve each other with water is at least part of when the first pressure mixes, and produce solids and the first liquid phase.Solids is Precipitation thing or the crystallization precipitate of solute in the aqueous solution, such as salt such as sodium-chlor, calcium chloride, Repone K, calcium carbonate.The first liquid phase is at least part of miscible mixture of water and water-miscible organic solvent, also may contain the residual of solute in the partially aqueous solution.The first liquid phase can be the homogeneous liquid phase that water and water-miscible organic solvent dissolve each other fully, also can be the combination of two above liquid phases of the each other hierarchal arrangement of water and water-miscible organic solvent partial miscibility.
Separating of solids and the first liquid phase can be by device or the method for any solid-liquid separation, such as any combination of hydrocyclone, centrifugation, press filtration, filtration or aforementioned means or method.
The second pressure is lower than the first pressure, and it can be water-miscible organic solvent from beginning to gasify required pressure to the arbitrary value that is gasified totally the required pressure, and the second pressure also can repeatedly apply, and the value that at every turn applies can be identical also can be different.
Apply the second pressure that is lower than the first pressure, for example the second pressure equal the first pressure 80%, barometric point or negative pressure, at least part of gasification of water-miscible organic solvent, the first liquid phase is divided into gaseous state organic phase and second liquid phase.The gaseous state organic phase can directly be discharged, and also the aqueous solution is processed in recyclable rear recycling, or is used for other purposes.Second liquid phase can be moisture, residual the liquid water solubleness organic solvent and residual solute.If second liquid phase satisfies the requirement of directly using or discharging, can directly use or discharge.Otherwise then available various water technology is further processed second liquid phase.For example, if residual in the second liquid phase have a liquid water solubleness organic solvent, it can dissolve each other fully with water and also can dissolve each other with water section, second liquid phase can be the homogeneous liquid phase that water and water-miscible organic solvent dissolve each other fully, also can be the combination of two above liquid phases of the each other hierarchal arrangement of water and water-miscible organic solvent partial miscibility, can by various liquid-liquid separation technology with liquid water solubleness organic solvent and moisture from, also can further reduce pressure by one or more steps, make water-miscible organic solvent strengthen the ratio of gasification until be gasified totally, to separate with aqueous vapor liquid.If the residual solute in the second liquid phase needs further to process, then can repeat method involved in the present invention removes, also available other removed the method for solute in the aqueous solution, for example by applying negative pressure dissolved gases in the water (as the vaporous water solubleness organic solvent that is dissolved in the water) extracted out.
Solids can carry out from separating of the first liquid phase simultaneously with water-miscible organic solvent, also can successively carry out.In certain embodiments, first with solids and the first liquid phase separation, apply again the second pressure at the first pressure, make at least part of gaseous state that is converted into of water-miscible organic solvent, produce gaseous state organic phase and second liquid phase.In certain embodiments, at the second pressure simultaneously with gaseous state organic phase and solids separation out, produce second liquid phase, during the solids that for example after the dme liquefaction condition mixes, produces at atmosphere at room temperature press filtration dme and the aqueous solution, dme transfers gaseous state to, produces simultaneously the product of solids, gaseous dimethyl and three kinds of different phases of second liquid phase.
The present invention adopts water-miscible organic solvent to process the aqueous solution, when the first pressure, water and water-miscible organic solvent be at least part of dissolving each other each other, and the most of Precipitation of the meeting that the solubleness of the solute of the aqueous solution in water-miscible organic solvent is low or crystallization form solids.Apply the second pressure that is lower than the first pressure, water-miscible organic solvent is at least part of to transfer gaseous state to by liquid state, thus with moisture from.The present invention realizes respectively water-miscible organic solvent and the aqueous solution at different pressure conditions mixing with separate, water-miscible organic solvent can at least part ofly separate by gas-liquid two-phase with water, and is simple to operate, not high to energy requirement.For example dme is pressed at atmosphere at room temperature and is gaseous state, can with moisture from.
Experimental example
Following experimental example can be implemented for the people who has general technical ability in this area this invention reference is provided.But these examples are not limited to the scope of claim.
Example 1
Sodium chloride aqueous solution (5 milliliters 25wt%) add in the bottle by one of them opening for feed of adding a cover withstand voltage vial with two opening for feeds.In pressure is arranged is that the container of about 4 atmospheric gaseous dimethyl is connected that with another opening for feed gaseous dimethyl is injected in the bottle.Vial was placed 5 minutes in about-20 ℃ water cooler.
Another one fill sodium chloride aqueous solution (5 milliliters, 25wt%) but the withstand voltage vial of adding a cover of attitude dme of not ventilating also placing 5 minutes in-20 ℃ the water cooler approximately.
Take out two vials from water cooler after, finding has solids and the first liquid phase in the bottle of ventilation attitude dme, shows that sodium-chlor separated out.The amount of the first liquid phase is about 10 milliliters, and is larger than the sodium chloride aqueous solution amount that originally adds, and shows that liquefaction has occured dme.Do not find in the bottle of the attitude of not ventilating dme to change.
Example 2
The aqueous solution (5 milliliters, the analytical data of its sample is as shown in table 1 below) adds in the bottle by one of them opening for feed of adding a cover withstand voltage vial with two opening for feeds.In pressure is arranged is that the container of about 4 atmospheric gaseous dimethyl is connected that with another opening for feed gaseous dimethyl is injected in the bottle.Vial was placed 5 minutes in about-20 ℃ water cooler.
Take out vial from water cooler after, finding has solids and the first liquid phase in the bottle.The amount of the first liquid phase is about 10 milliliters, and is larger than the water-soluble liquid measure that originally adds.Filter at normal temperature (25 ℃) normal pressure (1 normal atmosphere), obtain about 5 milliliters of second liquid phases and about 0.29 gram solids.Can learn at least part of gasification of dme in filtration procedure, produce the gaseous state organic phase, and at least part ofly separate with second liquid phase.Second liquid phase and solids are carried out sample analysis, and the result is as shown in table 1 below.
Table 1
PH value in the table 1 is to survey in the solution after 1 to 50 the dilution proportion.As can be seen from Table 1, the most of analyte concentrations in the second liquid phase sample all are lower than its concentration in aqueous liquid sample.Some difference of non-acid soluble material (being mainly silicon) situation may be all to adopt glass material because of reaction and storage receptacle in the experimentation, and alkaline solution be partly dissolved the silicon in the glass, causes the concentration of silicon to raise.
Can find out also that from table 1 concentration that has recorded sodium ion, potassium ion, chlorion and calcium carbonate and sodium-chlor from the solids sample is higher.
Can find out that from this experimental result method involved in the present invention can be used for removing the impurity such as salt (characterizing with total dissolved solidss) and organism (characterizing with total organic carbon) from the aqueous solution of the high organism of high salt (high total dissolved solidss) (high total organic carbon).
Although describe the present invention in conjunction with the specific embodiments, those skilled in the art can make many modifications and modification to the present invention.Therefore, recognize that claims intention covers all such modifications and the modification in the true spirit scope of the present invention.
Claims (12)
1. process the method for the aqueous solution, comprising:
At the first pressure with the water-miscible organic solvent of effective dose and aqueous solution to produce solids and the first liquid phase;
Separating solid substances and the first liquid phase; And
Apply be lower than the first pressure the second pressure so that the first liquid phase is divided into gaseous state organic phase and second liquid phase.
2. the method for the processing aqueous solution as claimed in claim 1, wherein the second pressure is barometric point.
3. the method for the processing aqueous solution as claimed in claim 1, wherein water-miscible organic solvent with aqueous solution before be liquid.
4. the method for the processing aqueous solution as claimed in claim 1, wherein water-miscible organic solvent with aqueous solution before be gaseous state, at the first pressure liquefaction.
5. the method for the processing aqueous solution as claimed in claim 1, wherein the first pressure is that about 1 normal atmosphere is to about 20 normal atmosphere.
6. the method for the processing aqueous solution as claimed in claim 5, wherein being blended in of water-miscible organic solvent and the aqueous solution is lower than about 80 ℃ temperature and carries out.
7. the method for the processing aqueous solution as claimed in claim 1, the step of wherein said separating solid substances and the first liquid phase prior to apply be lower than the first pressure the second pressure the first liquid phase is divided into the step of gaseous state organic phase and second liquid phase.
8. the method for the processing aqueous solution as claimed in claim 1, wherein solids comprises sodium-chlor.
9. the method for the processing aqueous solution as claimed in claim 1, wherein the aqueous solution is the waste water that produces in the SAGD process.
10. such as the method for each described processing aqueous solution in the claim 1 to 9, wherein water-miscible organic solvent is dme, ether, methyl ethyl ether, methylamine, dimethylamine or its arbitrary combination.
11. such as the method for each described processing aqueous solution in the claim 1 to 9, wherein water-miscible organic solvent is dme.
12. such as the method for each described processing aqueous solution in the claim 1 to 9, wherein water-miscible organic solvent is at least part of at the first pressure is liquid, at least part of at the second pressure is gaseous state.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102559863A CN102963996A (en) | 2011-08-31 | 2011-08-31 | Method for treating aqueous solution |
| PCT/US2012/053260 WO2013033483A1 (en) | 2011-08-31 | 2012-08-31 | Method for treating aqueous solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102559863A CN102963996A (en) | 2011-08-31 | 2011-08-31 | Method for treating aqueous solution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102963996A true CN102963996A (en) | 2013-03-13 |
Family
ID=47756891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102559863A Pending CN102963996A (en) | 2011-08-31 | 2011-08-31 | Method for treating aqueous solution |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102963996A (en) |
| WO (1) | WO2013033483A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112292352A (en) * | 2018-03-30 | 2021-01-29 | 巴特勒能源同盟有限公司 | Method and system for treating aqueous solutions |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7501065B1 (en) * | 2006-05-08 | 2009-03-10 | Bader Mansour S | Methods for treating agricultural drainage water and the like |
| CN101402509A (en) * | 2008-11-21 | 2009-04-08 | 北京桑德环境工程有限公司 | Treatment system and method for high-salt wastewater |
| CN101928087A (en) * | 2009-06-26 | 2010-12-29 | 中国石油化工股份有限公司 | Method for treating high salinity wastewater |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6365051B1 (en) * | 1999-10-12 | 2002-04-02 | Mansour S. Bader | Precipitation-membrane distillation hybrid system for the treatment of aqueous streams |
| CN1192810C (en) * | 2000-03-03 | 2005-03-16 | 贝林格尔·英格海姆药物公司 | Material processing by repeated solvent expansion-contraction |
-
2011
- 2011-08-31 CN CN2011102559863A patent/CN102963996A/en active Pending
-
2012
- 2012-08-31 WO PCT/US2012/053260 patent/WO2013033483A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7501065B1 (en) * | 2006-05-08 | 2009-03-10 | Bader Mansour S | Methods for treating agricultural drainage water and the like |
| CN101402509A (en) * | 2008-11-21 | 2009-04-08 | 北京桑德环境工程有限公司 | Treatment system and method for high-salt wastewater |
| CN101928087A (en) * | 2009-06-26 | 2010-12-29 | 中国石油化工股份有限公司 | Method for treating high salinity wastewater |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112292352A (en) * | 2018-03-30 | 2021-01-29 | 巴特勒能源同盟有限公司 | Method and system for treating aqueous solutions |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013033483A1 (en) | 2013-03-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103543055A (en) | Pretreatment method for heavy metal element detection in solid sample and application of pretreatment method | |
| CN104619950A (en) | Treatment of produced water with seeded evaporator | |
| CN106278827A (en) | A kind of method and device of extract and separate phenolic compound from coal derived oils | |
| CN104946303B (en) | A kind of method of phenol mixture in Selective Separation oil | |
| US20170197853A1 (en) | Process for removal of anion from aqueous solution | |
| CN102963996A (en) | Method for treating aqueous solution | |
| US20140147910A1 (en) | Methods and systems for recovering phosphorus from wastewater with enhanced removal of phosphorus from biosolids | |
| CN105347633A (en) | Method for recovering oil from oil-containing substances and device thereof | |
| CN104707549B (en) | A kind of device and method reclaiming chromatographic grade organic reagent from organic reagent waste liquid | |
| WO2013011129A3 (en) | Method and system for removal of dissolved organic compounds in process water | |
| CN107601797B (en) | Oil sludge treating agent and oil sludge treating method | |
| CN102936052B (en) | Method for recycling carboxymethylcellulose production wastewater | |
| CN113462466B (en) | Method for extracting and separating grease from seaweed | |
| CN105084608B (en) | A kind of preprocess method of acrylic ester wastewater biochemical treatment | |
| CN103964544A (en) | Method for oil removal from wastewater in field of coal chemical industry | |
| CN107400049A (en) | The separation method of non-solvent component in a kind of ketone benzene binary solvent | |
| JP6180891B2 (en) | Method for removing or reducing Si from Si-containing phosphoric acid waste liquid | |
| EP0173544B1 (en) | Process for the recovery of a low molecular weight alcohol from an aqueous fermentation medium | |
| Chen et al. | Progressive freezing method for concentrating tetrahydrofuran (THF) remained in grignard reagent wastewater | |
| EP3778502A1 (en) | Method and device for treating aqueous substance | |
| CN106397791B (en) | A kind of method using humic acid in XAD resin post and mixed ammonium/alkali solutions extraction frond | |
| CN204564106U (en) | A kind of device reclaiming chromatographic grade organic reagent from organic reagent waste liquid | |
| CN104961187A (en) | Method for treating wastewater with organic solvents | |
| CN112573784A (en) | Method for treating oily sludge by utilizing atmospheric and vacuum distillation/cracking device | |
| Chang et al. | Extraction Behaviour of Cu2+ Ions with Used Cooking Oil-Based Organic Solvent |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130313 |