CN108383207A - A kind of oilfield polymer flooding dirt containing PAM water purification method - Google Patents
A kind of oilfield polymer flooding dirt containing PAM water purification method Download PDFInfo
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- CN108383207A CN108383207A CN201810301752.XA CN201810301752A CN108383207A CN 108383207 A CN108383207 A CN 108383207A CN 201810301752 A CN201810301752 A CN 201810301752A CN 108383207 A CN108383207 A CN 108383207A
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- polymer flooding
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/4608—Treatment of water, waste water, or sewage by electrochemical methods using electrical discharges
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- 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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
- C02F2201/007—Modular design
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The present invention relates to a kind of oilfield polymer flooding dirt containing PAM water purification method, which generates low temperature plasma using dielectric barrier discharge.Reactor shell is organic glass material, and top sets discharge anode and reflux condensing tube putting hole, and left side has analytical sampling mouth, right side to have compressed air to expose entrance, and bottom has gas distributor, reactor outer wall coated metal aluminium expanded sheets to make cathode.Anode and cathode connects low-temperature plasma generator and oscillograph, low-temperature plasma generator are connected with power measurement instruments, contact voltage regulator, AC power in succession.Discharge voltage is adjusted, between negative and positive grade, organic glass shell and PAM sewage serve as discharge medium, form dielectric barrier discharge and Fenton oxidation synergistic purification PAM sewage.Water outlet makes sewage viscosity and COD substantially reduce again through flocculation adsorption, and purification is efficient, thorough, and each Parameter adjustable.The present invention provides a kind of purification efficiency height, easy-to-use PAM sewage purification process.
Description
Technical field
The invention belongs to difficult-degradation organic sewages to administer field, be related to a kind of purification of oilfield polymer flooding sewage containing PAM
Process.
Background technology
Polymer flooding tertiary oil recovery technology is generally used in oilfield development process, good oil increasing effect is had been achieved with, in institute
Have in polymer, since polyacrylamide (PAM) is high molecular weight water soluble polymer, there is flocculation, drop resistance, bonding, thickening etc.
Excellent properties and use most.But as the popularization of polymer displacement of reservoir oil tech produces a kind of novel waste water, i.e. oil field polymerize
Object drives sewage containing PAM.Such waste water viscosity is big, emulsification degree height, complicated component, water-oil separating is difficult, environmental hazard is serious, because
This such waste water becomes a difficult point of water process in recent years.PAM itself is nontoxic, and monomer acrylamide (AM) but has very strong
Toxicity, so PAM catabolites and degradative pathway are also the hot spot studied at present.
The conventional oil field polymer flooding water purification method of dirt containing PAM includes Physical, bioanalysis and chemical method etc..These are often
Rule single method all has some limitations, if Physical is to PAM removal effects effect unobvious in sewage；Bioanalysis is to water
Matter requires harshness, and processing capacity is limited；Chemical method is invested and operating cost is higher, often also needs to add a large amount of chemical drugs
Agent is also easy to produce secondary pollution.Therefore, in practical applications, from single treatment side from the point of view of technology, economic and energy saving emission reduction
Method is undesirable.
Low temperature plasma (Non-thermal plasma, NTP) technology is a kind of high-level oxidation technology, compared to other
High-level oxidation technology not only contains OH, O isoreactivity group it is advantageous that generating various active particle in discharge process,
Also O3、H2O2Deng with oxidisability molecule, and simultaneously with UV, ultrasonic wave, high energy electron bombard phenomena such as, it is normal in room temperature
Pressure makes discharge space be enriched with high activity particle by electric discharge, makes organic molecule excitation, ionization or scission of link.Dielectric barrier discharge
(Dielectric barrier discharge, DBD) be it is common generate low temperature plasma mode, have stable discharge,
The feature that electron density is high, energy is strong, has outstanding advantage in field of environment protection such as waste water controls.
Fenton oxidation method passes through H2O2And Fe2+The organic matter that effect generates OH to degrade.This method is putative
The method very in terms of handling organic sewage with foreground and economic benefit, with two kinds of effects of oxidation and coagulation.Comprehensive state
Lower temperature plasma technology is combined by inside and outside document with other sewage water treatment methods, and wastewater purifying efficiency is far superior to single place
Reason mode.
Invention content
The present invention provides a kind of low-temperature plasma synergistic Fenton oxidations and flocculation adsorption to purify field polymers
The process for driving the sewage containing PAM, the method overcome the conventional oil field with single polymer flooding drawback of sewage water treatment method containing PAM,
Can give full play to low temperature plasma, Fenton oxidation and the various method for treating water of flocculation adsorption synergistic effect, it is intensive, high
Effect, and can effectively reduce energy consumption and waste discharge.With purification efficiency, high, environmentally protective, inexpensive, easy realization etc. is excellent
Point.
Specific design scheme is as follows：
A kind of experimental provision of oilfield polymer flooding effluent purification method containing PAM by：Electric discharge device, the DBD reactions of stick cartridge type
Device, waveform and electrical parameter recording device three parts composition, wherein electric discharge device by AC power (1), contact voltage regulator (2),
Power measurement instruments (3) and plasma generator (4) composition；Stick cartridge type DBD reactors are by analytical sampling mouth (5), circulating pump
(6), anode copper electrodes (7), gas distributor (8), reflux condensing tube (9), cathode aluminum plate net (10), the DBD reactions of stick cartridge type
Device shell (12) and compressed air are exposed to be formed into valve (13)；Oscillograph (14) is electrical parameter and waveform recording device.
A kind of process of oilfield polymer flooding sewage purification containing PAM, feature include the following steps：
(1) reactor is in place, and oilfield polymer flooding sewage containing PAM is added into reactor, and adjusting pH value of sewage water is 2.00-
5.50；
(2) reflux condensing tube water flowing；
(3) FeSO of certain substance withdrawl syndrome is added4And hydrogen peroxide；
(4) compressed air is passed through into reactor；
(5) reactor discharge parameter is adjusted；
(6) from analytical sampling mouth sampling analysis viscosity and COD.
Oilfield polymer flooding sewage containing PAM Raw performance pH described above be 6.10-6.70, viscosity 80-90mPas,
COD is 5500-7000mg/L.
FeSO described above4Substance withdrawl syndrome be 0.2mmol/L-1.0mmol/L, the substance withdrawl syndrome of hydrogen peroxide
For 0.2mmol/L-1.5mmol/L..
The compressed air require that the above is passed through into reactor is 2-4L/min.
Discharge parameter described above is discharge time 1-5h, discharge voltage 2-10kV.
The present invention is characterized in that：When a kind of oilfield polymer flooding effluent treatment plant containing PAM operation, stick cartridge type DBD is anti-
It answers and generates the high energy active particles such as OH degradation PAM in device, Fenton oxidation can further discharge OH, coordinated with plasma drop
Solve PAM；Constantly exposed from reactor bottom into compressed air bubble OH isoreactivities particle and PAM macromoleculars can be made fully to connect
It touches, mixing, while also having stirring action concurrently；The reflux condensate device of stick cartridge type DBD reactor heads setting, can prevent from reacting
The evaporation loss of sewage in device；Whole device Coordination, uniformly, makes PAM sewage viscosity significantly decline, while drop is glutinous,
COD is greatly reduced, and wastewater purification efficiency is high.
The reaction mechanism of the present invention：PAM sewage is first pre-processed through plasma discharge, and the preliminary scission of links of macromolecular PAM is made to become
It at small-molecule substance, then further degrades under Fenton oxidation effect, acts on trapping separation finally by flocculation adsorption, carry
The high oxidation efficiency of dielectric barrier discharge effective energy utilization rate and Fenton oxidation, also enhances flocculation adsorption function.It is low
Isothermal plasma technology acts synergistically with Fenton oxidation, and flocculation adsorption acts in addition, reaches thoroughly purification oilfield polymer flooding
The purpose of the sewage containing PAM.
Advantage is the present invention compared with prior art：
(1) method for using low-temperature plasma synergistic Fenton oxidation purifies oilfield polymer flooding sewage containing PAM, low temperature
Plasma acts synergistically with Fenton oxidation, especially the viscosity of PAM sewage and COD can be made to substantially reduce, wastewater purification efficiency
Height has the characteristics that purification efficiency is high, the reaction time is fast, need not consume Macrodilution water compared with conventional waste water bioanalysis；
Electric energy can be saved compared with independent using plasma method for oxidation, purification can be improved compared with Fenton oxidation method purifies waste water
Efficiency.
(2) it uses stick cartridge type DBD methods to generate low-temperature plasma synergistic Fenton oxidation purification oilfield polymer flooding to contain
PAM sewage, is different from existing corona discharge on charging method or high pressure pulse discharge generates corona treatment waste water
Method.The stick cartridge type DBD plasma body cooperative Fenton oxidation reactors of use, simple structure, stable, parameter adjustment side
Just, small, light-weight, can be suitable for oilfield polymer flooding sewage containing PAM with continuous processing PAM sewage and other be highly concentrated
Spend the purification of organic sewage.
(3) if also containing other organic principles difficult to degrade in treatment sewage, which can handle together.Together
When, which can also reduce Colority of Sewage Water and turbidity.
Description of the drawings
Fig. 1 is apparatus of the present invention schematic diagram.
It is marked in figure：1, AC power；2, contact voltage regulator；3, power measurement instruments；4, plasma generator；5, it analyzes
Sample tap；6, circulating pump；7, anode copper electrodes；8, gas distributor；9, reflux condensing tube；10, cathode aluminum plate net；11, it connects
Ground wire；12, stick cartridge type DBD reactor shells；13, compressed air is exposed into valve；14, oscillograph.
Specific implementation mode
The present invention is further elaborated with reference to embodiment, but embodiments of the present invention are not limited to reality
Apply the range of example statement.
Embodiment 1
(1) reactor is in place, and oilfield polymer flooding sewage containing PAM, pH 6.70 are added into reactor, and viscosity is
90mPas, COD 6500mg/L；
(2) it is 2.50 to adjust oilfield polymer flooding pH value of sewage water containing PAM；
(3) reflux condensing tube water flowing；
(4) FeSO of certain substance withdrawl syndrome is added4And hydrogen peroxide, H2O2With Fe2+The ratio between substance withdrawl syndrome is 4:1；
(5) compressed air require is 3L/min；
(6) electric discharge device parameter, discharge time 3h, discharge voltage 7kV are adjusted；
(7) it is 2.60 from outlet valve water intaking analysis water-like sample pH, viscosity 20.5mPas, COD 1170mg/L, viscosity reduction
Rate 77.2%, COD degradation rate 82%,.
Embodiment 2
(1) reactor is in place, and oilfield polymer flooding sewage containing PAM, pH 6.70 are added into reactor, and viscosity is
90mPas, COD 6500mg/L；
(2) it is 5.50 to adjust oilfield polymer flooding pH value of sewage water containing PAM；
(3) reflux condensing tube water flowing；
(4) FeSO of certain substance withdrawl syndrome is added4And hydrogen peroxide, H2O2With Fe2+The ratio between substance withdrawl syndrome is 5:1；
(5) compressed air require is 3L/min；
(6) electric discharge device parameter, discharge time 2h, discharge voltage 6kV are adjusted；
(7) it is 5.60 from outlet valve water intaking analysis water-like sample pH, viscosity 21.4mPas, COD 1120mg/L, viscosity reduction
Rate 76.2%, COD degradation rate 82.8%.
Embodiment 3
(1) reactor is in place, and oilfield polymer flooding sewage containing PAM, pH 6.50 are added into reactor, and viscosity is
81mPas, COD 5800mg/L；
(2) it is 4.00 to adjust oilfield polymer flooding pH value of sewage water containing PAM；
(3) reflux condensing tube water flowing；
(4) FeSO of certain substance withdrawl syndrome is added4And hydrogen peroxide, H2O2With Fe2+The ratio between substance withdrawl syndrome is 6:1；
(5) compressed air require is 3L/min；
(6) electric discharge device parameter, discharge time 3h, discharge voltage 8kV are adjusted；
(7) it is 4.20 from outlet valve water intaking analysis water-like sample pH, viscosity 10.4mPas, COD 812mg/L, viscosity reduction
Rate 87.2%, COD degradation rate 86%.
Embodiment 4
(1) reactor is in place, and oilfield polymer flooding sewage containing PAM, pH 6.10 are added into reactor, and viscosity is
80mPas, COD 5500mg/L；
(2) it is 3.50 to adjust oilfield polymer flooding pH value of sewage water containing PAM；
(3) reflux condensing tube water flowing；
(4) FeSO of certain substance withdrawl syndrome is added4And hydrogen peroxide, H2O2With Fe2+The ratio between substance withdrawl syndrome is 5:1；
(5) compressed air require is 3L/min；
(6) electric discharge device parameter, discharge time 3h, discharge voltage 7kV are adjusted；
(7) it is 3.70 from outlet valve water intaking analysis water-like pH, viscosity 6.0mPas, COD 455mg/L, viscosity break ratio
92.5%, COD degradation rate 91.7%.
Claims (6)
1. a kind of oilfield polymer flooding effluent purification method containing PAM, it is characterised in that：Experimental provision is by electric discharge device, stick cartridge type
DBD reactors, electrical parameter and waveform recording device three parts composition, wherein electric discharge device is by AC power (1), contact voltage regulator
(2), power measurement instruments (3) and plasma generator (4) composition；Stick cartridge type DBD reactors are by analytical sampling mouth (5), cycle
Pump (6), anode copper electrodes (7), gas distributor (8), reflux condensing tube (9), cathode aluminum plate net (10), stick cartridge type DBD are anti-
It answers device shell (12) and compressed air to expose to form into valve (13)；Oscillograph (14) is electrical parameter and waveform recording device.
2. a kind of application method of oilfield polymer flooding sewage purification containing PAM experimental provision according to claim 1, special
Sign is, includes the following steps：
(1) reactor is in place, and oilfield polymer flooding sewage containing PAM is added into reactor, and adjusting pH value of sewage water is 2.00-
5.50；
(2) reflux condensing tube water flowing；
(3) FeSO of certain substance withdrawl syndrome is added4And hydrogen peroxide；
(4) a certain amount of compressed air is passed through into reactor；
(5) reactor discharge parameter is adjusted；
(6) from analytical sampling mouth sampling analysis viscosity and COD.
3. according to the method described in claim 2, it is characterized in that：Oilfield polymer flooding sewage containing the PAM Raw performance pH
For 6.10-6.70, COD 5500-7000mg/L, viscosity 80-90mPas.
4. according to the method described in claim 2, it is characterized in that：FeSO4Substance withdrawl syndrome be 0.2mmol/L-
The substance withdrawl syndrome of 1.0mmol/L, hydrogen peroxide are 0.2mmol/L-1.5mmol/L.
5. according to the method described in claim 2, it is characterized in that：The compressed air require being passed through into reactor is 2-4L/
min。
6. according to the method described in claim 2, it is characterized in that：Discharge time 1-5h, discharge voltage 2-10kV.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810301752.XA CN108383207A (en) | 2018-04-04 | 2018-04-04 | A kind of oilfield polymer flooding dirt containing PAM water purification method |
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| CN201810301752.XA CN108383207A (en) | 2018-04-04 | 2018-04-04 | A kind of oilfield polymer flooding dirt containing PAM water purification method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109095702A (en) * | 2018-10-10 | 2018-12-28 | 重庆科技学院 | The device and method of high-voltage pulse-ozone and high-voltage pulse-Fenton co-oxidation processing drilling fluid waste water |
| CN109796067A (en) * | 2019-03-12 | 2019-05-24 | 安徽理工大学 | A kind of homemade reaction of low temperature plasma device and implementation method |
| CN114380436A (en) * | 2021-12-29 | 2022-04-22 | 中海油天津化工研究设计院有限公司 | System and method for treating wastewater containing polymer and colloid through plasma combination |
| CN114656077A (en) * | 2020-12-22 | 2022-06-24 | 中国科学院生态环境研究中心 | Plasma oxidation water treatment device and water treatment method thereof |
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| CN103641205A (en) * | 2013-10-29 | 2014-03-19 | 南京工业大学 | Dielectric barrier discharge-Fenton treatment combined technology for treating aniline wastewater |
| WO2016007000A1 (en) * | 2014-07-08 | 2016-01-14 | Johannes Adrianus Maria Hoefnagels | Process for the treatment of biological material |
| CN105481049A (en) * | 2015-12-30 | 2016-04-13 | 安徽理工大学 | Process method for catalyzing and purifying polyacrylamide waste water through low-temperature plasmas in cooperation with ultraviolet light |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109095702A (en) * | 2018-10-10 | 2018-12-28 | 重庆科技学院 | The device and method of high-voltage pulse-ozone and high-voltage pulse-Fenton co-oxidation processing drilling fluid waste water |
| CN109095702B (en) * | 2018-10-10 | 2022-01-21 | 重庆科技学院 | Device and method for treating drilling fluid wastewater through high-voltage pulse-ozone and high-voltage pulse-Fenton combined oxidation |
| CN109796067A (en) * | 2019-03-12 | 2019-05-24 | 安徽理工大学 | A kind of homemade reaction of low temperature plasma device and implementation method |
| CN114656077A (en) * | 2020-12-22 | 2022-06-24 | 中国科学院生态环境研究中心 | Plasma oxidation water treatment device and water treatment method thereof |
| CN114380436A (en) * | 2021-12-29 | 2022-04-22 | 中海油天津化工研究设计院有限公司 | System and method for treating wastewater containing polymer and colloid through plasma combination |
| WO2023123511A1 (en) * | 2021-12-29 | 2023-07-06 | 中海油天津化工研究设计院有限公司 | System and method for treating polymer-containing and glue-containing wastewater by means of plasma combination |
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Application publication date: 20180810 |