CN101503243A - Device for treating oilfield sulfur-containing sewage - Google Patents
Device for treating oilfield sulfur-containing sewage Download PDFInfo
- Publication number
- CN101503243A CN101503243A CNA2009100259852A CN200910025985A CN101503243A CN 101503243 A CN101503243 A CN 101503243A CN A2009100259852 A CNA2009100259852 A CN A2009100259852A CN 200910025985 A CN200910025985 A CN 200910025985A CN 101503243 A CN101503243 A CN 101503243A
- Authority
- CN
- China
- Prior art keywords
- aeration opening
- inlet pipe
- water
- cylindrical shell
- barrel
- 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.)
- Granted
Links
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 239000010865 sewage Substances 0.000 title claims description 25
- 229910052717 sulfur Inorganic materials 0.000 title claims description 16
- 239000011593 sulfur Substances 0.000 title claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 71
- 238000005273 aeration Methods 0.000 claims abstract description 39
- 239000000945 filler Substances 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 6
- 238000005276 aerator Methods 0.000 claims description 4
- 238000009792 diffusion process Methods 0.000 claims description 4
- 238000007689 inspection Methods 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 abstract description 9
- 239000005864 Sulphur Substances 0.000 abstract description 3
- 238000011282 treatment Methods 0.000 abstract description 2
- 238000004065 wastewater treatment Methods 0.000 abstract 2
- 239000000126 substance Substances 0.000 description 13
- 239000003921 oil Substances 0.000 description 10
- 238000002347 injection Methods 0.000 description 8
- 239000007924 injection Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 5
- 238000012545 processing Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000006477 desulfuration reaction Methods 0.000 description 2
- 230000023556 desulfurization Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002513 implantation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000009388 chemical precipitation Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 239000007764 o/w emulsion Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 235000019600 saltiness Nutrition 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 125000000101 thioether group Chemical group 0.000 description 1
Images
Abstract
The invention discloses an oil field sulphur-bearing waste water treatment device, which comprises a barrel. The upper end of the barrel is openmouthed and the barrel is internally provided with a water collection weir groove, a guide shell, stuffing, an upper part aeration opening and an under part aeration opening; wherein, an inlet tube stretches into the guide shell of the barrel from the upper part of the barrel; the under part aeration opening is arranged below the guide shell and is communicated with an under-part inlet pipe which extends out of the barrel; the upper part aeration opening is arranged peripherally outside the guide shell in the barrel and is communicated with an upper part inlet pipe which extends out of the upper part of the shell; the stuffing is arranged between the upper part aeration opening and the under part aeration opening; the upper part of the barrel is provided with an overflow drain; the water collection weir groove is arranged below the overflow drain; the position of the barrel, which is as high as the top edge of the water collection weir groove, is provided with an oil drainage port; a water outlet is arranged below the oil drainage port; and the lower end of the barrel is provided with a vent. The oil field sulphur-bearing waste water treatment device greatly reduces the consumption of polymer and saves the treatment cost.
Description
Technical field
The present invention openly comes a kind of desulfurizer, particularly utilizes the device for treating oilfield sulfur-containing sewage of airborne oxygen treatments applied sour water.
Background technology
Along with Oilfield developing, crude oil water containing constantly raises.In order to protect environment, to keep Oil extraction and stratum production capacity, become conventional with carrying out re-injection after the sewage disposal for many years.Part oil field block causes the water quality instability owing to sulfide content in the water raises gradually, has jeopardized the water flooding effect.According to the data that geology department provides, water injection well, the layer short or do not absorb water and list in 60% of retrofit work amount be because of injection water quality defective due to, this is seriously restricting the oil-field development benefit.Do not remove the sulfide function and design in the existing water conditioning process.Sulphur and sulfide in the output sewage of oil field with S, S
2-, SO
4 2-For principal mode exists, S and SO
4 2-Can both under the effect of sulphate reducing bacteria, be reduced into S
2-, S in the water
2-Because its out-shell electron very easily is out of shape, penetrativity is strong, and iron and steel is had the Cl of ratio
-Stronger corrodibility forms local corrosion or pitting corrosion at steel surface, finally makes the tube wall perforation, destroys sewage and water injection equipment.Because the corrosive product gluey FeS suspended substance that is water-fast black, excellent stability makes the rapid blackening of water quality after the processing smelly, and suspended substance increases; FeS is again a kind of oil in water emulsion stablizer simultaneously, and the oil removing difficulty is increased; Inject underground obstruction stratum, the oil reservoir water-retaining capacity is descended, water injection pressure constantly raises, and influences intensified injection of wells measure validity period and reduces, and increases measure cost.
Research and test in place show both at home and abroad, join poly-degraded of injecting with sewage to the polymers soln various degrees, sewage is to the major cause of polymkeric substance degraded, the high problem of the saltiness of sewage still not, main is the severely degrade that the active substance in the on-the-spot high-pressure sealed sewage produces polymkeric substance, cause the injection fluid viscosity not reach requirement, reduced the effect of polymer flooding.Along with the rising of reservoir temperature and salinity,, thereby obtain needed solution viscosity value in requisition for the implantation concentration that increases polymkeric substance.Can improve viscosity in aqueous solution though increase the implantation concentration of polymkeric substance, the corresponding production operation cost that increased makes polymer flooding be difficult to bring into play due value.If utilize oilfield sewage prepared polymer solution, will take appropriate measures and technology comes oilfield sewage is handled, to improve the viscosity of polymers soln, reach the requirement of injection.
In the prior art, for removing S
2-Following two kinds of methods are arranged: 1, chemical precipitation method, cost are too high, and the new metal ion of introducing to the reduction of polymkeric substance viscosity greater than S
2-Reduction to the polymkeric substance viscosity; 2, dioxygen water law, effect are with good, but hydrogen peroxide is a hazardous chemical, and cost is also up to 0.6 yuan/ton; 3, ozone method, effective but facility investment is big, processing cost is too up to 1.6 yuan/ton.
For this reason, the applicant utilizes air oxidation process to adopt three tower parallel connections, and handling the water yield is 11000-12000 ton/sky, S
2-Content drops to 0-1.5mg/l from 15-30mg/l, and poly-viscosity raising 30-40% is joined in the not desulfurization of ratio of viscosities of joining after gathering, and reduces the consumption of polymkeric substance greatly, and processing cost is 0.07 yuan/ton, and how to realize that the key equipment of this method becomes the research key point.
Summary of the invention
Goal of the invention: technical problem to be solved by this invention is at the deficiencies in the prior art, and a kind of device for treating oilfield sulfur-containing sewage is provided.
Technical scheme: the invention discloses a kind of device for treating oilfield sulfur-containing sewage, comprise that the upper end for open cylindrical shell, is provided with the weir notch that catchments, guide shell, filler, top aeration opening and bottom aeration opening in the cylindrical shell; There is a water inlet pipe to stretch into the intravital guide shell of tube from cylindrical shell top; Described bottom aeration opening is positioned at the guide shell below, and is communicated with a bottom inlet pipe of stretching out cylindrical shell; Described top aeration opening is positioned at the intravital guide shell of tube periphery, and is communicated with a top inlet pipe of stretching out cylindrical shell; Described filler is positioned in the middle of top aeration opening and the bottom aeration opening; Simplified upper end is provided with an overflow port; The described weir notch that catchments is positioned at the overflow port below, and contour position, simplified the upper edge last and weir notch that catchments is provided with oil discharge outlet; The oil discharge outlet below is provided with water port; The cylindrical shell lower end is provided with a drain; Described water inlet pipe is connected with a water pump, and top aeration opening and bottom aeration opening are connected with an air compressor machine respectively; Be provided with a water quality detection sensor that is connected with online water quality controller in the described rising pipe, the input signal of described online water quality controller control water pump and air compressor machine.
Among the present invention, preferably, the described water inlet pipe in ground is connected with a water pump, and top aeration opening and bottom aeration opening are connected with an air compressor machine respectively; Be provided with a water quality detection sensor that is connected with online water quality controller in the described water port, the input signal of described online water quality controller control water pump and air compressor machine.Can control the power of air compressor machine in real time according to the difference of water quality thus, and then the ratio of control vapor content, thereby realize optimum aerated reaction.
Among the present invention, preferably, the top and bottom of described guide shell are set to hydraucone, and described water inlet pipe stretches in the hydraucone of upper end.The water inlet that can guarantee the upper end thus flows into the below fully in the guide shell and carries out aeration, guarantees that simultaneously the water of guide shell below scatters, and increases aeration area.The more important thing is simultaneously, in use, because the flooding quantity of water inlet pipe is big, flow velocity is fast, formed the guide shell inner chamber from top to bottom, the outer water circulation from the bottom to top of guide shell, the feed water flow of part is through behind aeration, along with current, hydraucone from the guide shell upper end enters once more, form the secondary aeration, this is arranged so that simple intravital water inlet is can aeration complete, and effect is remarkable.
Among the present invention, preferably, described bottom aeration opening is provided with and is provided with air diffusion aerator.Can increase the aeration effect of inlet mouth.
Among the present invention, preferably, described filler is the PVC filter ball.Through experiment, use the PVC filter ball can increase the area of aerated reaction time and aerated reaction, make the aeration effect increase more than 20% in general.
Among the present invention, preferably, the below of described cylinder lateral wall is provided with inspection port.Be convenient to safeguard and failure testing.
Among the present invention, the described weir notch that catchments, air diffusion aerator can use this area structure comparatively commonly used, need not particular design.
Beneficial effect: device for treating oilfield sulfur-containing sewage of the present invention is through experimental calculation, and handling the water yield is 11000-12000 ton/sky, S
2-Content drops to 0-1.5mg/l from 15-30mg/l, and poly-viscosity raising 30-40% is joined in the not desulfurization of ratio of viscosities of joining after gathering, and reduces the consumption of polymkeric substance greatly, and processing cost is 0.07 yuan/ton.
The experiment of device for treating oilfield sulfur-containing sewage of the present invention, separated sulfide in the sink drainage of determining to the difficult problem that influences of polymer viscosity, system is improved along sulfide in the journey and well head polymer viscosity, sulfide content is from testing about preceding 20mg/L, be reduced to below the present 2mg/L, polymer viscosity is brought up to 80mpa.s from original 65mpa.s.Experiment showed, that utilizing airborne oxygen is most economical and effective means as oxygenant.Contain s in the oil field reinjection water
2-, and s
2-Viscosity influence to polymkeric substance is very big, s
2-Content be that the polymkeric substance that the sewage of 2mg/L is joined compares s
2-Content be that the viscosity of the sewage of the 12mg/L polymkeric substance of joining improves about 20%, have very big economic benefit.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is done further to specify, above-mentioned and/or otherwise advantage of the present invention will become apparent.
Be illustrated as structural representation of the present invention.
Embodiment
As shown in the figure, the invention discloses a kind of device for treating oilfield sulfur-containing sewage, comprise the upper end for open cylindrical shell 1, described being provided with in simplified and cylindrical shell 1 inwall fixed catchment weir notch, guide shell 3, filler 4, top aeration opening 5 and bottom aeration opening 6.Have a water inlet pipe 7 to stretch into the intravital guide shell 3 of tube from cylindrical shell 1 top, described guide shell is connected with simplified 1 inwall by anchor.Described bottom aeration opening 6 is positioned at the below of guide shell 3, and is communicated with a bottom inlet pipe 15 of stretching out cylindrical shell 1.Described top aeration opening 5 is positioned at the intravital guide shell of tube 1 periphery, and is communicated with a top inlet pipe 8 of stretching out cylindrical shell 1.Described PVC filter ball 4 is positioned at top aeration opening 5 and bottom aeration opening 6 intermediary part space, and the channel-section steel fixed position by being connected with cylindrical shell 1 inwall and guide shell 3 outer walls up and down.The upper end of cylindrical shell 1 is provided with an overflow port 9; The described weir notch 2 that catchments is positioned at overflow port 9 belows, and contour position, on the cylindrical shell 1 and upper edge of the weir notch 2 that catchments is provided with oil discharge outlet 10; Oil discharge outlet 10 belows are provided with water port 11; The lower end of cylindrical shell 1 is provided with a drain 12.Described water inlet pipe 7 is connected with a water pump 17, and top inlet pipe 8 and bottom inlet pipe 15 are connected with an air compressor machine 18,19 respectively; Be provided with a water quality detection sensor 16 that is connected with online water quality controller 20 in the described water port 11, the input signal of described online water quality controller 20 control water pumps 17 and air compressor machine 18,19.Described water pump, air compressor machine, line water quality controller and the water quality detection sensor all general equipment in this this area get final product, as long as wherein online water quality controller and connected water quality detection sensor can detect S ion content in the water outlet.The top and bottom of described guide shell 3 are set to hydraucone, and described water inlet pipe 7 stretches in the hydraucone of upper end.Shown in dotted arrow among the figure, the inside and outside current of guide shell form eddy flow, have increased the aeration number of times of water inlet.Described bottom aeration opening 6 is provided with and is provided with air diffusion aerator 13.The below of described cylinder lateral wall is provided with inspection port 14.
The invention provides a kind of thinking and method of device for treating oilfield sulfur-containing sewage; the method and the approach of this technical scheme of specific implementation are a lot; the above only is a preferred implementation of the present invention; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the principle of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.The all available prior art of each component part not clear and definite in the present embodiment is realized.
Claims (5)
1, a kind of device for treating oilfield sulfur-containing sewage is characterized in that, comprises that the upper end for open cylindrical shell (1), is provided with the weir notch that catchments (2), guide shell (3), filler (4), top aeration opening (5) and bottom aeration opening (6) in the cylindrical shell (1); There is a water inlet pipe (7) to stretch into tube intravital guide shell (3) from cylindrical shell (1) top; Described bottom aeration opening (6) is positioned at the below of guide shell (3), and is communicated with a bottom inlet pipe (15) of stretching out cylindrical shell (1); Described top aeration opening (5) is positioned at tube intravital guide shell (1) periphery, and is communicated with a top inlet pipe (8) of stretching out cylindrical shell (1); Described filler (4) is positioned in the middle of top aeration opening (5) and the bottom aeration opening (6); The upper end of cylindrical shell (1) is provided with an overflow port (9); The described weir notch that catchments (2) is positioned at overflow port (9) below, and the position that cylindrical shell (1) is gone up and the upper edge of the weir notch (2) that catchments is contour is provided with oil discharge outlet (10); Oil discharge outlet (10) below is provided with water port (11); The lower end of cylindrical shell (1) is provided with a drain (12); Described water inlet pipe (7) is connected with a water pump (17), and top inlet pipe (8) and bottom inlet pipe (15) are connected with an air compressor machine respectively; Be provided with a water quality detection sensor (16) that is connected with online water quality controller (20) in the described water port (11), the input signal of described online water quality controller (20) control water pump (17) and air compressor machine.
2, device for treating oilfield sulfur-containing sewage according to claim 1 is characterized in that, the top and bottom of described guide shell (3) are set to hydraucone, and described water inlet pipe (7) stretches in the hydraucone of upper end.
3, device for treating oilfield sulfur-containing sewage according to claim 1 and 2 is characterized in that, described bottom aeration opening (6) is provided with and is provided with air diffusion aerator (13).
4, device for treating oilfield sulfur-containing sewage according to claim 3 is characterized in that, described filler is the PVC filter ball.
5, device for treating oilfield sulfur-containing sewage according to claim 3 is characterized in that, the below of described cylinder lateral wall is provided with inspection port (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100259852A CN101503243B (en) | 2009-03-16 | 2009-03-16 | Device for treating oilfield sulfur-containing sewage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100259852A CN101503243B (en) | 2009-03-16 | 2009-03-16 | Device for treating oilfield sulfur-containing sewage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101503243A true CN101503243A (en) | 2009-08-12 |
| CN101503243B CN101503243B (en) | 2011-05-11 |
Family
ID=40975634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100259852A Expired - Fee Related CN101503243B (en) | 2009-03-16 | 2009-03-16 | Device for treating oilfield sulfur-containing sewage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101503243B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103058309A (en) * | 2013-02-01 | 2013-04-24 | 北京市龙源科创石油技术有限公司 | Device and method for treating acidic water |
| CN103241873A (en) * | 2013-04-18 | 2013-08-14 | 宁波大学 | Reactor capacity expansion method with upgraded catalyst interception mechanism for photocatalytic degradation of wastewater |
| CN103241874B (en) * | 2013-04-18 | 2015-12-02 | 宁波大学 | The Microwave photocatalytic wastewater degradation device expansion method that catalyst interception link is perfect again |
| CN103241875B (en) * | 2013-04-18 | 2015-12-09 | 宁波大学 | The High-capacity waste water degradation reactor that photocatalyst interception reuse mechanism is improved again |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3963611A (en) * | 1973-10-26 | 1976-06-15 | Chevron Research Company | Oxidation process for improving the environmental quality of water containing sulfur and/or inorganic sub-six-sulfur-containing impurities |
| US4076621A (en) * | 1976-03-15 | 1978-02-28 | Air Resources, Inc. | Chelate oxidation of hydrogen sulfide in sour water |
| CN201415955Y (en) * | 2009-03-16 | 2010-03-03 | 宜兴市紫晶环保设备有限公司 | Oilfield sulfur-containing sewage treatment device |
-
2009
- 2009-03-16 CN CN2009100259852A patent/CN101503243B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103058309A (en) * | 2013-02-01 | 2013-04-24 | 北京市龙源科创石油技术有限公司 | Device and method for treating acidic water |
| CN103241873A (en) * | 2013-04-18 | 2013-08-14 | 宁波大学 | Reactor capacity expansion method with upgraded catalyst interception mechanism for photocatalytic degradation of wastewater |
| CN103241874B (en) * | 2013-04-18 | 2015-12-02 | 宁波大学 | The Microwave photocatalytic wastewater degradation device expansion method that catalyst interception link is perfect again |
| CN103241875B (en) * | 2013-04-18 | 2015-12-09 | 宁波大学 | The High-capacity waste water degradation reactor that photocatalyst interception reuse mechanism is improved again |
| CN103241873B (en) * | 2013-04-18 | 2016-05-11 | 宁波大学 | The reactor expansion method of its catalyst interception mechanism upgrading of waste water photocatalytic degradation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101503243B (en) | 2011-05-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104355478B (en) | A kind of dyeing and printing sewage processes system | |
| CN101503243B (en) | Device for treating oilfield sulfur-containing sewage | |
| CN103523966A (en) | Advanced wastewater treatment system and treatment method | |
| CN207699293U (en) | A kind of novel anaerobic reactor | |
| CN201415955Y (en) | Oilfield sulfur-containing sewage treatment device | |
| CN105347582A (en) | Device and method for degrading alkaline organic waste water by iron-carbon micro-electrolysis | |
| CN108033558A (en) | Strengthen the method for dyeing waste water hydrolysis acidification performance | |
| CN102432098B (en) | PAFR-B (pulse anaerobic fluidized bed reactor) and organic waste water processing method | |
| CN110683670B (en) | Aeration, desulfurization, iron removal and deoxidation device and method for oilfield polymer-blending sewage | |
| CN104692555A (en) | Recycling and reutilization method and device for flow-back fracturing fluid | |
| CN210001718U (en) | strong basicity printing and dyeing wastewater treatment system of acid cycle recovery | |
| CN111115966B (en) | Extraction technology-based underground water pumping treatment system and method | |
| CN203513415U (en) | System for removing COD (Chemical Oxygen Demand) of membrane concentrated water | |
| CN203568922U (en) | Deep sewage treatment system | |
| CN204841207U (en) | A device that is used for automatic gas -liquid separation under high depressurized environment of chlorine dioxide generator | |
| CN207774909U (en) | Dual reflux activated sludge bed reactor | |
| CN205653273U (en) | Alkaline organic waste water's of little electrolysis degradation of iron carbon device based on carbon dioxide | |
| CN104906874A (en) | Automatic gas-liquid separation device and method for chlorine dioxide generator under high negative pressure environment | |
| CN205700094U (en) | The waste gas circulation that a kind of sodium pyrosulfite produces utilizes system | |
| CN206089682U (en) | Marsh gas liquid processing system | |
| CN101497472B (en) | Process for treating oilfield sulfur-containing sewerage | |
| CN205876273U (en) | A water injection structure for low permeability pay horizontal well | |
| CN212102450U (en) | A microorganism produces hydrogen sulfide generating device for dirty sour vulcanization deposits | |
| CN204320075U (en) | A kind of device for absorbing selenium dioxide gas | |
| CN215712219U (en) | DTRO + SWRO device for treating landfill leachate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160906 Address after: 214237 Wuxi, Jiangsu City, Yixing Province Zhang Zhu industrial concentration area Patentee after: Jiangsu, Environmental Engineering Co. Ltd. Address before: District Yixing Zijing Environmental Protection Equipment Co Ltd 214231 Jiangsu city of Yixing Province Zhang Zhu Zhen Industrial Patentee before: Amethyst Yixing Environmental Protection Equipment Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Zhang Zhu Zhen 214231 Jiangsu city in Wuxi Province, Yixing City, South Gate Village Patentee after: Jiangsu Dakai Environmental Engineering Co. Ltd. Address before: 214237 Wuxi, Jiangsu City, Yixing Province Zhang Zhu industrial concentration area Patentee before: Jiangsu, Environmental Engineering Co. Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180528 Address after: 710077 Xi'an, Yanta District, Shaanxi, north of Jinye two Road North yycui garden first a 6 unit, 21 floors 62102 rooms. Patentee after: Shaanxi Hai Ji Ya Environmental Protection Technology Co., Ltd. Address before: 214231 South Gate Village, Zhang Zhu Town, Yixing City, Wuxi, Jiangsu Patentee before: Jiangsu Dakai Environmental Engineering Co. Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110511 Termination date: 20190316 |