CN103265139A - Method and device for quickly treating alcohol-containing wastewater of gas field - Google Patents
Method and device for quickly treating alcohol-containing wastewater of gas field Download PDFInfo
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- CN103265139A CN103265139A CN2013102243060A CN201310224306A CN103265139A CN 103265139 A CN103265139 A CN 103265139A CN 2013102243060 A CN2013102243060 A CN 2013102243060A CN 201310224306 A CN201310224306 A CN 201310224306A CN 103265139 A CN103265139 A CN 103265139A
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Abstract
The invention discloses a method for quickly treating alcohol-containing wastewater of a gas field. The method comprises the following steps of: injecting the alcohol-containing wastewater into a mixing tank, adding an oxidant and a catalyst into the mixing tank, stirring and mixing to obtain a mixed solution; delivering the mixed solution into an ultraviolet reaction zone to remove methanol through ultraviolet radiation; putting the wastewater subjected to ultraviolet radiation into a catalyst separation zone; collecting and discharging the wastewater through an ultrafiltration device; and capturing the suspended catalyst in the wastewater by using a capturing function of the ultrafiltration device, and putting the catalyst back into the mixing tank to remix and react with the alcohol-containing wastewater and the oxidant which are newly added into the mixing tank. The invention provides a device for quickly treating the alcohol-containing wastewater of the gas field at the same time. The device applies an ultraviolet catalytic oxidation technology and combines an ultrafiltration technology, and the catalyst can be recycled while the methanol is removed, so that the treatment cost of the alcohol-containing wastewater is greatly reduced, the water quality of the treated water is improved, and the method is simple and convenient to operate and safe to operate.
Description
Technical field
The present invention relates to a kind of gas field extracted waste water treatment technology and equipment, particularly be a kind of alcoholic gas field waste water immediate processing method and device.
Background technology
In the gas exploitation course, under wellhead pressure, form the temperature of hydrate about 23 ℃, and well head natural gas flow temperature generally has only 15～18 ℃, therefore is easy to form near well head hydrate, so need to annotate inhibitor to suppress the formation of hydrate at well head.Generally, the hydrate inhibitor that injects to gas well is methyl alcohol.A methyl alcohol part of injecting is evaporated to gas phase, and another part then is soluble in the aqueous phase to form and contains pure water.Because annotate alcohol at a lot of gas well mouths, the wastewater containing methanol output of generation is very big, the about output 1m3 wastewater containing methanol of average every production 100,000 m3 Sweet natural gases.At present, be from contain pure water, to reclaim methyl alcohol for containing the most economic mode of pure wastewater treatment, to reach the recycle of methyl alcohol, what generally adopt is that methanol rectifying tower reclaims, the methanol concentration that is recovered under the normal circumstances can reach 99%.Yet, when the alcohol amount of containing of gas field wastewater less than 10% the time, the methanol content at the bottom of the tower after handling through rectifying tower in the water is higher (1～3%) often.Methanol content is with the noticeable change in season in the recovered water of gas field, and summer is about 5%～10%, even lower; Winter can be up to 20%～25%.Owing to be subjected to seasonal effect, when the methanol content in the recovered water lower (less than 3%), contain pure waste water and namely lost the value that rectifying tower reclaims.At this moment, the improvement that contains pure waste water just becomes enterprise's one of main Environmental Problems that faces that taps natural gas.
At present, contain pure wastewater treatment method and can be divided into two big classes: biological treatment and chemical treatment.Bioremediation comprises aerobe processing, anaerobic biological treatment and anaerobic-aerobic combination biologic treating technique.Because the methanol concentration of alcoholic gas field waste water is big (1～3%), COD can be up to 2～60,000 mg/L, and quantity discharged is remarkable with seasonal variation.When adopting aerobe to handle, the whole decomposition that need quite long hydraulic detention time and a large amount of oxygen supplys just can finish methyl alcohol cause the capital cost for the treatment of facility and follow-up working cost very high, and during winter, the treatment facility utilization ratio is not high; When adopting Anaerobic Microbiological Treatment Technology, because it is bigger to contain concentration and the quantity discharged fluctuating range of pure waste water, can cause the biological treatment system fluctuation of service.Therefore, biologic treating technique is not suitable for the processing of alcoholic gas field waste water.
Chemical process is that to utilize ozone, hydrogen peroxide and chlorine be oxygenant etc., at Al
2O
3, SiO
2Deng being formaldehyde with the methanol oxidation in the waste water under the catalyst action, and finally be oxidized to CO
2Chemical method can be according to the dosage that determining alcohol, the water yield are in time adjusted oxygenant and catalyzer that contains of waste water, and operation conditions optimization save processing costs, but traditional chemical method exists the shortcoming that catalyst recovery yield is low, processing cost is high.Simultaneously, because the special geographical position in gas field and strict safety requirements, clearly ban use of ozone and the hydrogen peroxide etc. can oxygenous oxygenant, make at present some efficiently oxidation technology can't use in the alcoholic gas field field of waste water treatment.Therefore, be badly in need of the alcoholic gas field wastewater processing technology of a kind of efficient, safety of exploitation, economy, environmental protection, tap natural gas and faced the environmental hazard problem that contains pure discharge of wastewater in the process to solve oilfield enterprise.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, purpose of the present invention aims to provide a kind of alcoholic gas field waste water immediate processing method and device, use the ultraviolet catalytic oxidation technology, in conjunction with ultra-filtration technique, when removing methyl alcohol, can reclaim catalyzer, significantly reduce the processing cost that contains pure waste water, improve the effluent quality of handling water, this method is easy and simple to handle, operating safety.
To achieve these goals, the technical solution used in the present invention is:
A kind of alcoholic gas field waste water immediate processing method comprises the steps:
To contain pure waste water and inject mixing pit, in mixing pit, add oxygenant and catalyzer, mix mixed solution;
Mixed solution is sent into the UV reactive district carry out uv irradiating removal methyl alcohol;
Waste water behind the uv irradiating is sent into catalyst separation zone, by ultra-filtration equipment waste water is collected and effluxed, and utilize the crown_interception of ultra-filtration equipment that the catalyzer that suspends in the waste water is held back, be recycled to mixing pit, with containing of new adding mixing pit pure waste water, oxygenant hybrid reaction again.
Described oxygenant is clorox, and dosage is 100～500mg/L; Described catalyzer is micron order titanium dioxide, only adds when the reactor initial start-up, and dosage is 200mg/L; The hydraulic detention time of mixing pit is 15min.
Described uv irradiating intensity remains on 10W/L, the residence time 1.5h of entire ultraviolet reaction zone.
Described UV reactive is provided with diversion trench in the district, has stable fluidised form to guarantee current, prevents that short stream from taking place.
The present invention provides a kind of alcoholic gas field waste water quick treatment device simultaneously, comprise the mixing pit 1 that has mechanical stirring device 2, mixing pit 1 is connected with oxygenant throwing device 14 by dosing pipe 15, the outlet at bottom of mixing pit 1 communicates with UV reactive district 3, be provided with the uv irradiating system 4 of a plurality of parallel ultraviolet lamp tubes 5 in the UV reactive district 3, the outlet at bottom in UV reactive district 3 communicates with catalyst separation zone 6, be provided with board-like polysulfone hollow fiber ultrafiltration membrane system 7 in the catalyst separation zone 6, board-like polysulfone hollow fiber ultrafiltration membrane system 7 is connected to the ultra-filtration equipment vacuum primingpump 8 that is positioned at catalyst separation zone 6 outsides, to mixing pit 1, the aeration head of catalyst separation zone 6 bottoms connects outside aerating system 12 to catalyst separation zone 6 outlet at bottoms by catalyst mixed liquid reflux pump 9 and reflux line 10 tiebacks.
Described ultraviolet lamp tube 5 vertically arranges, and the top is connected to uv irradiating system 4, and the bottom is unsettled, is provided with flow deflector between adjacent ultraviolet lamp tube 5, forming diversion trench, and makes that the ultraviolet lamp tube 5 of a series is all arranged in each diversion trench.
Described mixing pit 1 is provided with suction culvert, this suction culvert is provided with magnetic flow meter 16, the data output signal of magnetic flow meter 16 connects uv irradiating system controlling box 13, uv irradiating system controlling box 13 output control signals meet uv irradiating system 4, unlatching quantity by control ultraviolet lamp tube 5, with realization the adjusting of intensity is opened by uv irradiating system 4, thereby reach the purpose that reduces power consumption.
Advantage of the present invention is:
Present method and device only need use a kind of oxygenant (clorox, stable in properties), therefore, have very high security and reliability in the alcoholic gas field wastewater treatment process.
Present method is used ultraviolet catalytic oxidation+hypochlorous acid catalyzing oxidizing degrading methyl alcohol, and speed of response is fast, efficient is high, and it is less to be contained pure waste strength variable effect, handles water quality stabilizing.
The present invention adopts flooding velocity and the control of uv irradiating system interlink, when flooding quantity reduces, reduces the unlatching intensity of uv irradiating system automatically, saves power consumption.
The uv irradiating catalyst in reactor degree of scatter height of apparatus of the present invention, catalytic efficiency is good; The ultra-filtration membrane interception capacity is strong in the catalyst separation zone, and catalyzer is difficult for running off, and processing cost descends to some extent.
Description of drawings
Fig. 1 is the structural representation of apparatus of the present invention.
Embodiment
Below in conjunction with drawings and Examples the present invention is described in further details.
As shown in Figure 1, a kind of alcoholic gas field waste water quick treatment device provided by the invention comprises the mixing pit 1 that has mechanical stirring device 2, and mixing pit 1 top is provided with suction culvert, and pipeline is provided with magnetic flow meter 16.Oxygenant throwing device 14 connects mixing pit 1 by dosing pipe 15, the outlet at bottom of mixing pit 1 communicates with UV reactive district 3, uv irradiating system 4 is set in the UV reactive district 3, uv irradiating system 4 belows connect a plurality of vertical ultraviolet lamp tubes 5, the bottom of ultraviolet lamp tube 5 is unsettled, be provided with flow deflector between the adjacent ultraviolet lamp tube 5, forming diversion trench, and make that the ultraviolet lamp tube 5 of a series is all arranged in each diversion trench.
The outlet at bottom in UV reactive district 3 communicates with catalyst separation zone 6, be provided with board-like polysulfone hollow fiber ultrafiltration membrane system 7 in the catalyst separation zone 6, board-like polysulfone hollow fiber ultrafiltration membrane system 7 is connected to the ultra-filtration equipment vacuum primingpump 8 that is positioned at catalyst separation zone 6 outsides, catalyst separation zone 6 outlet at bottoms by catalyst mixed liquid reflux pump 9 and reflux line 10 tiebacks to mixing pit 1, the aeration head that connects outside aerating system 12 is arranged at catalyst separation zone 6 bottoms, and aerating system 12 connects gas blower 11.
The data output signal of magnetic flow meter 16 connects uv irradiating system controlling box 13, by the PLC controller in the uv irradiating system controlling box 13 according to flooding velocity information and the program that sets in advance, the exposure intensity (40%～100%) of output control signal control uv irradiating system 4, thus reach the purpose that reduces power consumption.It is to realize by the unlatching quantity that controls ultraviolet lamp tube 5 that the exposure intensity of uv irradiating system 4 is regulated.
According to above device, a kind of alcoholic gas field waste water of the present invention fast processing comprises the steps:
1) when the reactor initial start-up, in mixing pit 1, sends into waste water by inlet channel;
2) add the oxygenant clorox by oxygenant throwing device 14 and drug feeding pipeline 15 in mixing pit 1, dosage is 100～500mg/L; Add catalyzer (micron order titanium dioxide) simultaneously, dosage is 200mg/L, opens mechanical stirring device 2, and with three's mixing and stirring, the hydraulic detention time of mixing pit is 15min, obtains mixed solution.
3) the gained mixed solution enters UV reactive district 3 by the outlet at bottom of mixing pit 1, the data on flows that uv irradiating system controlling box 13 receives from magnetic flow meter 16, adjust the unlatching intensity of uv irradiating system 4 according to these data, and then the brightness of adjustment ultraviolet lamp tube 5 (ultraviolet wavelength 253nm), general adjustable brightness is to 10W/L, the residence time 1.5h of entire ultraviolet reaction zone, the clearance of methyl alcohol can reach 85～95%.
4) waste water after the UV reactive flow to catalyst separation zone 6, under 8 effects of ultra-filtration equipment vacuum primingpump, handles water and collects by board-like polysulfone hollow fiber ultrafiltration membrane system 7, and the discharge system, be used for reinjection into reservoir or other industrial uses.Meanwhile, utilize the crown_interception of board-like polysulfone hollow fiber ultrafiltration membrane system 7, be trapped in catalyst separation zone 6 with handling the catalyzer that suspends in the water, and by catalyst mixed liquid reflux pump 9 with mixed-liquor return to the mixing pit 1 of intaking, with new adding system contain pure waste water, oxygenant mixes again.After adding enough catalyzer in the system, can stop in system, continuing to add catalyzer, only need regularly in system, to replenish little amount of catalyst.
Claims (7)
1. an alcoholic gas field waste water immediate processing method is characterized in that, comprises the steps:
To contain pure waste water and inject mixing pit, in mixing pit, add oxygenant and catalyzer, mix mixed solution;
Mixed solution is sent into the UV reactive district carry out uv irradiating removal methyl alcohol;
Waste water behind the uv irradiating is sent into catalyst separation zone, by ultra-filtration equipment waste water is collected and effluxed, and utilize the crown_interception of ultra-filtration equipment that the catalyzer that suspends in the waste water is held back, be recycled to mixing pit, with containing of new adding mixing pit pure waste water, oxygenant hybrid reaction again.
2. alcoholic gas field waste water immediate processing method according to claim 1 is characterized in that, described oxygenant is clorox, and dosage is 100～500mg/L; Described catalyzer is micron order titanium dioxide, only adds when the reactor initial start-up, and dosage is 200mg/L; The hydraulic detention time of mixing pit is 15min.
3. alcoholic gas field waste water immediate processing method according to claim 1 is characterized in that, described uv irradiating intensity remains on 10W/L, the residence time 1.5h of entire ultraviolet reaction zone.
4. alcoholic gas field waste water immediate processing method according to claim 1 is characterized in that, described UV reactive is provided with diversion trench in the district, has stable fluidised form to guarantee current, prevents that short stream from taking place.
5. alcoholic gas field waste water quick treatment device, it is characterized in that, comprise the mixing pit (1) that has mechanical stirring device (2), mixing pit (1) is connected with oxygenant throwing device (14) by dosing pipe (15), the outlet at bottom of mixing pit (1) communicates with UV reactive district (3), be provided with the uv irradiating system (4) of a plurality of parallel ultraviolet lamp tubes (5) in the UV reactive district (3), the outlet at bottom in UV reactive district (3) communicates with catalyst separation zone (6), be provided with board-like polysulfone hollow fiber ultrafiltration membrane system (7) in the catalyst separation zone (6), board-like polysulfone hollow fiber ultrafiltration membrane system (7) is connected to and is positioned at the outside ultra-filtration equipment vacuum primingpump (8) of catalyst separation zone (6), to mixing pit (1), the aeration head of catalyst separation zone (6) bottom connects the aerating system (12) of outside to catalyst separation zone (6) outlet at bottom by catalyst mixed liquid reflux pump (9) and reflux line (10) tieback.
6. alcoholic gas field waste water quick treatment device according to claim 5, it is characterized in that, described ultraviolet lamp tube (5) vertically arranges, the top is connected to uv irradiating system (4), the bottom is unsettled, between adjacent ultraviolet lamp tube (5), be provided with flow deflector, forming diversion trench, and make that the ultraviolet lamp tube (5) of a series is all arranged in each diversion trench.
7. alcoholic gas field waste water quick treatment device according to claim 5, it is characterized in that, described mixing pit (1) is provided with suction culvert, this suction culvert is provided with magnetic flow meter (16), the data output signal of magnetic flow meter (16) connects uv irradiating system controlling box (13), uv irradiating system controlling box (13) output control signal meets uv irradiating system (4), unlatching quantity by control ultraviolet lamp tube (5), with realization the adjusting of intensity is opened by uv irradiating system (4), thereby reach the purpose that reduces power consumption.
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| CN2013102243060A CN103265139A (en) | 2013-06-06 | 2013-06-06 | Method and device for quickly treating alcohol-containing wastewater of gas field |
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| CN2013102243060A CN103265139A (en) | 2013-06-06 | 2013-06-06 | Method and device for quickly treating alcohol-containing wastewater of gas field |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104402163A (en) * | 2014-12-01 | 2015-03-11 | 中国石油天然气股份有限公司 | Complete treatment equipment for alcohol-containing wastewater in gas field |
| CN104445807A (en) * | 2014-10-31 | 2015-03-25 | 中国石油化工股份有限公司 | Treatment device and treatment process of wastewater containing methyl diethanolamine |
| CN105858993A (en) * | 2016-04-14 | 2016-08-17 | 中国石油天然气股份有限公司 | Airtight processing apparatus of vertical flow integration of gas field alcohol-containing waste water |
| CN108609789A (en) * | 2014-09-30 | 2018-10-02 | 北京合众有益科技有限责任公司 | A kind of gas field sewage method for innocent treatment |
| CN114804537A (en) * | 2022-05-17 | 2022-07-29 | 安徽浩悦环境科技有限责任公司 | Method and device for treating waste liquid containing ethylene glycol |
| CN117466361A (en) * | 2023-11-30 | 2024-01-30 | 江苏南大华兴环保科技股份公司 | A high-efficient photocatalytic oxidation equipment for waste water carbon removal attenuation |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03193191A (en) * | 1989-12-25 | 1991-08-22 | Matsushita Electric Ind Co Ltd | Method for purifying drinking water |
| CN101402482A (en) * | 2008-11-13 | 2009-04-08 | 林英姿 | Method for removing low-concentration natural organic matter in water |
| JP2009262122A (en) * | 2008-03-31 | 2009-11-12 | Panasonic Corp | Apparatus for water treatment |
| CN202643372U (en) * | 2012-06-12 | 2013-01-02 | 常州大学 | Separation and reaction device for slight pollution raw water purified photocatalysis coupled film |
| CN102863110A (en) * | 2012-10-23 | 2013-01-09 | 河海大学 | Device and method for integrally treating refractory organic wastewater |
| CN102942262A (en) * | 2012-09-29 | 2013-02-27 | 西安建筑科技大学 | Horizontal well fracturing wastewater treatment and resource utilization method |
| CN202898071U (en) * | 2012-09-28 | 2013-04-24 | 中国石油天然气股份有限公司 | Simulation test device for treating low-concentration methanol in gas field produced water |
-
2013
- 2013-06-06 CN CN2013102243060A patent/CN103265139A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03193191A (en) * | 1989-12-25 | 1991-08-22 | Matsushita Electric Ind Co Ltd | Method for purifying drinking water |
| JP2009262122A (en) * | 2008-03-31 | 2009-11-12 | Panasonic Corp | Apparatus for water treatment |
| CN101402482A (en) * | 2008-11-13 | 2009-04-08 | 林英姿 | Method for removing low-concentration natural organic matter in water |
| CN202643372U (en) * | 2012-06-12 | 2013-01-02 | 常州大学 | Separation and reaction device for slight pollution raw water purified photocatalysis coupled film |
| CN202898071U (en) * | 2012-09-28 | 2013-04-24 | 中国石油天然气股份有限公司 | Simulation test device for treating low-concentration methanol in gas field produced water |
| CN102942262A (en) * | 2012-09-29 | 2013-02-27 | 西安建筑科技大学 | Horizontal well fracturing wastewater treatment and resource utilization method |
| CN102863110A (en) * | 2012-10-23 | 2013-01-09 | 河海大学 | Device and method for integrally treating refractory organic wastewater |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108609789A (en) * | 2014-09-30 | 2018-10-02 | 北京合众有益科技有限责任公司 | A kind of gas field sewage method for innocent treatment |
| CN108622962A (en) * | 2014-09-30 | 2018-10-09 | 北京合众有益科技有限责任公司 | A kind of gas field sewage method for innocent treatment |
| CN108622961A (en) * | 2014-09-30 | 2018-10-09 | 北京合众有益科技有限责任公司 | A kind of gas field sewage method for innocent treatment |
| CN108773875A (en) * | 2014-09-30 | 2018-11-09 | 北京合众有益科技有限责任公司 | A kind of gas field sewage method for innocent treatment |
| CN104445807A (en) * | 2014-10-31 | 2015-03-25 | 中国石油化工股份有限公司 | Treatment device and treatment process of wastewater containing methyl diethanolamine |
| CN104402163A (en) * | 2014-12-01 | 2015-03-11 | 中国石油天然气股份有限公司 | Complete treatment equipment for alcohol-containing wastewater in gas field |
| CN104402163B (en) * | 2014-12-01 | 2016-07-06 | 中国石油天然气股份有限公司 | Complete treatment equipment for alcohol-containing wastewater in gas field |
| CN105858993A (en) * | 2016-04-14 | 2016-08-17 | 中国石油天然气股份有限公司 | Airtight processing apparatus of vertical flow integration of gas field alcohol-containing waste water |
| CN114804537A (en) * | 2022-05-17 | 2022-07-29 | 安徽浩悦环境科技有限责任公司 | Method and device for treating waste liquid containing ethylene glycol |
| CN114804537B (en) * | 2022-05-17 | 2023-08-08 | 安徽浩悦环境科技股份有限公司 | Method and device for treating glycol-containing waste liquid |
| CN117466361A (en) * | 2023-11-30 | 2024-01-30 | 江苏南大华兴环保科技股份公司 | A high-efficient photocatalytic oxidation equipment for waste water carbon removal attenuation |
| CN117466361B (en) * | 2023-11-30 | 2024-07-16 | 江苏南大华兴环保科技股份公司 | A high-efficient photocatalytic oxidation equipment for waste water carbon removal attenuation |
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Application publication date: 20130828 |