CN201770562U - Recovery combination processing system for confecting polymer of produced wastewater - Google Patents
Recovery combination processing system for confecting polymer of produced wastewater Download PDFInfo
- Publication number
- CN201770562U CN201770562U CN2010205273036U CN201020527303U CN201770562U CN 201770562 U CN201770562 U CN 201770562U CN 2010205273036 U CN2010205273036 U CN 2010205273036U CN 201020527303 U CN201020527303 U CN 201020527303U CN 201770562 U CN201770562 U CN 201770562U
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- water
- oil extraction
- processing system
- waste water
- ultrafiltration
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- 239000002351 wastewater Substances 0.000 title claims abstract description 27
- 238000011084 recovery Methods 0.000 title description 6
- 229920000642 polymer Polymers 0.000 title 1
- 238000000108 ultra-filtration Methods 0.000 claims abstract description 31
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 22
- 238000005189 flocculation Methods 0.000 claims abstract description 20
- 230000016615 flocculation Effects 0.000 claims abstract description 20
- 239000002131 composite material Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 50
- 239000010865 sewage Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005345 coagulation Methods 0.000 abstract description 2
- 230000015271 coagulation Effects 0.000 abstract description 2
- 238000013329 compounding Methods 0.000 abstract 1
- 239000012528 membrane Substances 0.000 description 15
- 239000000126 substance Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- 230000005611 electricity Effects 0.000 description 8
- 238000011010 flushing procedure Methods 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- 239000000084 colloidal system Substances 0.000 description 5
- 239000013505 freshwater Substances 0.000 description 5
- 239000013535 sea water Substances 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 229920002492 poly(sulfone) Polymers 0.000 description 4
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229920002401 polyacrylamide Polymers 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 239000006228 supernatant Substances 0.000 description 3
- 102100037364 Craniofacial development protein 1 Human genes 0.000 description 2
- 101000880187 Homo sapiens Craniofacial development protein 1 Proteins 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000001112 coagulating effect Effects 0.000 description 2
- 230000003311 flocculating effect Effects 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229920002239 polyacrylonitrile Polymers 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 230000004523 agglutinating effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000000247 postprecipitation Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000009182 swimming Effects 0.000 description 1
- 230000026676 system process Effects 0.000 description 1
- 230000003612 virological effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
本实用新型涉及一种污水处理系统，特别是采油污水进行配聚回用处理系统，属水处理系统技术领域。采油污水配聚回用组合处理系统，特征在于包括依序连接的电絮凝装置(1)、超滤装置(2)以及反渗透装置(3)。三个装置分别发挥各自优势，组合成一个完整系统，达到配聚用水要求。
The utility model relates to a sewage treatment system, in particular to a treatment system for compounding and reusing oil production sewage, and belongs to the technical field of water treatment systems. The combined treatment system for oil production wastewater by coagulation and reuse is characterized in that it includes an electric flocculation device (1), an ultrafiltration device (2) and a reverse osmosis device (3) connected in sequence. The three devices give full play to their respective advantages and are combined into a complete system to meet the requirements for water distribution.
Description
Technical field
The utility model relates to a kind of Sewage treatment systems, particularly a kind ofly joins poly-recycling processing system at oil extraction-generated waste water, belongs to the water treatment system technical field.
Background technology
At present, traditional oil extraction-generated waste water is handled just simply to precipitate by air supporting, dosing and is made sewage reach emission standard to carry out emission treatment, handles like this to cause great amount of water resources to waste and be treated to new source water again to join polywater.Make it reach the important meaning that the purpose of joining poly-reuse has reality so handle oil extraction waste water with a kind of new treatment system.
Summary of the invention
The purpose of this utility model is to overcome the weak point that above-mentioned existing technology exists, providing a kind of handles at heterogeneity in the oil extraction-generated waste water, oil extraction-generated waste water with energy-saving and emission-reduction, environment-friendly high-efficiency is joined poly-reuse composite processing system, makes can reach through the oil extraction-generated waste water behind this combined treatment process to join poly-water supply standard.
The technical solution adopted in the utility model is as follows
Oil extraction-generated waste water is joined poly-reuse composite processing system, and special character is to comprise electric flocculation plant 1, ultra-filtration equipment 2 and the reverse osmosis unit 3 that connects in regular turn; Thereby oil extraction-generated waste water reaches the requirement that poly-water is joined in the oil field through following a series of combined treatment step:
Electricity flocculation treatment → uf processing → reverse-osmosis treated
1, electric flocculation treatment
Adopting metallic iron or aluminium is the electroplax material, and polar plate spacing is 20mm, current density according to effluent quality at 10-100A/m
2Between regulate arbitrarily, according to pole plate area size, the optimum flow of determining the water outlet current is 1.5-2.5m
3/ h.Electricity flocculation water outlet is behind settling bowl, and supernatant liquor enters ultrafiltration system.
2, uf processing
The hyperfiltration membrane assembly parallel connection of ultra-filtration equipment employing polysulfones material or polyvinylidene difluoride (PVDF), polyacrylonitrile material, the inner pressed operation, technical process is operation-back washing-backwash-just wash-move, be that every operation 30min carries out the reverse flushing of 10s, be back flushing then, last row is each 30s of row down, is the forward flushing of 5s after the backwash, the operating pressure of ultra-filtration equipment produces the water water yield at 1.5-2.0m between 0.1-0.18MPa
3/ h, the cross flow filter concentrated water discharge is at 95-105L/h.
3, reverse-osmosis treated
Reverse osmosis unit adopts the series connection of sea water desaltination membrane element, the rate of recovery about 30%, and intake pressure produces water water yield 0.8-1.2m3/h at 3-3.5MPa, produces water conductivity 30-50 μ s/cm.
The utility model oil extraction-generated waste water is joined poly-reuse composite processing system, owing to adopted electric flocculation treatment, can be with the colloid flocculation sediment in the oil extraction waste water, and owing in the oil extraction waste water macromolecule copolymer polyacrylamide is arranged, polyacrylamide helps the effect of coagulating, and has reduced the content of polymkeric substance when further strengthening electric flocculating effect.Water after the electricity flocculation treatment carries out ultrafiltration, and ultrafiltration can be with the removal of impurity basic 100% such as the colloid in the electricity flocculation product water, bacterium, and ultrafiltration is produced the pollution index SDI value of water less than 2, for the steady running of reverse osmosis equipment long-term safety provides assurance.Ultrafiltration is produced water and is entered reverse osmosis equipment through high-pressure pump, because the salinity in the oil extraction waste water is very high, reverse-osmosis membrane element adopts the sea water desaltination membrane element, can bear higher pressure and reach the purpose of removing the water intermediate ion.Reverse osmosis produced water conductivity has reached the oil field and has joined the requirement of poly-water, thereby significantly reduced the water consumption and the blowdown flow rate in oil field less than 50 μ s/cm, has reduced cost for oil production.
Description of drawings
Fig. 1: the utility model oil extraction-generated waste water is joined poly-reuse composite processing system process flow sheet.
Embodiment
Below provide embodiment of the present utility model, be used for the utility model is further described:
Oil extraction-generated waste water is joined poly-reuse composite processing system, comprises the electric flocculation plant 1, ultra-filtration equipment 2 and the reverse osmosis unit 3 that connect in regular turn; Oil extraction-generated waste water reaches the requirement that poly-water is joined in the oil field through following a series of combined treatment step: electric flocculation treatment → uf processing → reverse-osmosis treated
1, electric flocculation treatment
The reaction principle of electricity flocculation is to be anode with metals such as aluminium, iron, under galvanic effect, anode is by corrosion, produce Al, Fe plasma, again through a series of hydrolysis, polymerization and ferrous oxidising process, develop into various hydroxo complexes, multinuclear hydroxo complex so that oxyhydroxide, make colloidal state impurity in the waste water, suspended impurity coagulative precipitation and separate.Simultaneously, the swimming in electric field of charged contaminant particle, its Partial charge is neutralized by electrode and impels it to take off steady coagulation.The main factor that influences electric flocculating effect is a current density, by regulating the size of current density, produces the agglutinating matter of appropriate amount, can remove polymkeric substance (polyacrylamide) in the water in the suspended matter in flocculation water.
Adopting metallic iron or aluminium is the electroplax material, and polar plate spacing is 20mm, current density according to effluent quality at 10-100A/m
2Between regulate arbitrarily, according to pole plate area size, the optimum flow of determining the water outlet current is 1.5-2.5m
3/ h measures the situation of effluent quality, again to determine optimum current density size by the size of regulating electric current.Electricity flocculation water outlet is behind settling bowl, and supernatant liquor enters ultrafiltration system.
Described electric flocculation treatment process is mainly used in COD (chemical oxygen demand (COD)) and the polymkeric substance of removing in the oil extraction-generated waste water, and its current density is at 30-60A/m
2
2, uf processing
Ultrafiltration is the relevant screening process of a kind of and membrane pore size size, pressure difference with the film both sides is a motivating force, with the ultra-filtration membrane is filtration medium, under certain pressure, when stoste flow through the film surface, the many tiny micropore that gathers in the ultra-filtration membrane surface only allowed water and small-molecule substance by becoming through liquid, and volume then is trapped within the liquid feeding side of film in the stoste greater than the material in film surface micropore footpath, become concentrated solution, thus realize to stoste purification, separation and spissated purpose.The pore size filter of ultrafiltration is generally at 0.002-0.1 μ m, molecular weight cut-off is 1,000-500,000 dalton, suspended substance, colloid, bacterium and the part chemical oxygen demand COD in the water can effectively catching be lived in ultrafiltration, cross flow filter is adopted in ultrafiltration in oil extraction-generated waste water is handled, and back flushing regularly is to guarantee its water flux.
Ultra-filtration equipment moves automatically, adopts two
The hyperfiltration membrane assembly parallel connection of polysulfones material, the inner pressed operation, technical process is operation-back washing-backwash-just wash-move, be that every operation 30min carries out the reverse flushing of 10s, be back flushing then, last row is each 30s of row down, is the forward flushing of 5s after the backwash, the operating pressure of ultra-filtration equipment produces the water water yield at 1.5-2.0m between 0.1-0.18MPa
3/ h, the cross flow filter concentrated water discharge is at 95-105L/h.
Uf processing technology is mainly used in turbidity and the impurity of removing in the oil extraction-generated waste water such as bacterium, viral colloid; Turbidity is meant the obstruction degree that is taken place when suspended substance sees through light in the water.Suspended substance in the water generally is earth, sand grains, fine organism and inorganics, planktonic organism, microorganism and colloidalmaterial etc.The turbidity of water is not only relevant with the content of suspended matter in the water, and relevant with their size, shape and specific refraction etc.The intake pressure of ultrafiltration apparatus is 0.1-0.2MPa, the ultrafiltration molecular weight cut-off is 5-15 ten thousand dalton (it is that 5-15 ten thousand is daltonian that the ultrafiltration membrane technique index is selected rejection for use) (the daltonian symbol D of standard unit), and the material of the ultra-filtration membrane of ultrafiltration apparatus can be polysulfones, polyvinylidene difluoride (PVDF), polyacrylonitrile material.
3, reverse-osmosis treated
Reverse osmosis membrane is under pressure-driven, allows solvent molecule to see through and a kind of functional semi-permeable membranes of not allowing solute molecule to see through.Reverse osmosis is the most accurate embrane method liquid separation technology, and it can stop nearly all solvability salt and molecular weight greater than 200 daltonian organism, but allows water and part salinity to see through.What of soluble solid amount are relevant in the working pressure of reverse osmosis and the water, and the main effect of reverse osmosis is to remove total dissolved solid in the water in oil extraction-generated waste water is handled.
Because the oilfield produced water salinity is very high, specific conductivity 12000-15000 μ s/cm, the utility model reverse osmosis unit adopts three Hydranautics to produce the series connection of SWC5 sea water desaltination membrane element, about the rate of recovery 30%, intake pressure is at 3-3.5MPa, produce water water yield 0.8-1.2m3/h, produce water conductivity 30-50 μ s/cm.Parameter online such as intake pressure, dense water pressure, fresh water pressure, product discharge, concentrated stream amount, temperature, specific conductivity.Regulate the size of the fresh-water flow and the rate of recovery by regulating the concentrated water discharge valve.
Ro treatment technology is mainly used in the soluble solid removed in the oil extraction-generated waste water (comprise solvability salt in the water, some organism and some undissolved filter solid fine grain and microorganism), and (specific conductivity is for producing the conductivity of water to produce water conductivity.The big more then conductivity of specific conductivity is strong more, otherwise more little) less than 50 μ s/cm, reach and join poly-water requirement, reverse-osmosis membrane element is selected for use and is the sea water desaltination film, and operating pressure is at 3.2-3.6MPa, and the water rate of recovery is 30-75%.
Above-mentioned three steps are removed polymkeric substance, suspended substance colloid and the soluble solid in the oil extraction-generated waste water respectively step by step, and three steps are displayed one's respective advantages, and are combined into an indispensable complete process, reach to join the poly-water technology requirement of using.
Traditional technology and the comparison of the utility model embodiment in actual motion:
| Project | Technology is described | Treatment effect |
| Traditional technology | Dosing, air supporting | The secondary discharging |
| Combination process | Electricity flocculation+ultrafiltration+reverse osmosis | Join poly-water |
Example
Oil extraction-generated waste water enters electric flocculation plant after simple air supporting, regulate electric current at 30A/m
2The electricity flocculation is produced water through the settling tank post precipitation, supernatant liquor enters the ultrafiltration inlet chest, under the intake pressure of topping-up pump, enter ultra-filtration equipment again at 0.12MPa, ultra-filtration equipment adopts the UF1IA200 of Shandong Zhaojin Motian Co., Ltd polysulfones material ultra-filtration membrane, molecular weight cut-off 67000 dalton, cross flow filter is operated automatically, and every 40min carries out a back flushing, and ultrafiltration is produced water and entered the feed water by reverse osmosis case, reverse osmosis unit adopts the sea water desaltination film SWC5 of Hydranautics, provide under the 3.3MPa pressure in high-pressure pump, fresh water enters fresh-water tank, concentrated water discharge, the rate of recovery of fresh water is at 30% (three film cascades), and specific conductivity is about 30 μ s/cm.
Claims (1)
1. oil extraction-generated waste water is joined poly-reuse composite processing system, is characterised in that to comprise electric flocculation plant (1), ultra-filtration equipment (2) and the reverse osmosis unit (3) that connects in regular turn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205273036U CN201770562U (en) | 2010-09-11 | 2010-09-11 | Recovery combination processing system for confecting polymer of produced wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205273036U CN201770562U (en) | 2010-09-11 | 2010-09-11 | Recovery combination processing system for confecting polymer of produced wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201770562U true CN201770562U (en) | 2011-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205273036U Expired - Fee Related CN201770562U (en) | 2010-09-11 | 2010-09-11 | Recovery combination processing system for confecting polymer of produced wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201770562U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108911292A (en) * | 2018-09-13 | 2018-11-30 | 苏州特曼清环保科技有限公司 | A kind of industrial wastewater efficient process equipment and treatment process |
| CN109095698A (en) * | 2018-09-13 | 2018-12-28 | 苏州特曼清环保科技有限公司 | One kind filtering industrial waste water high-efficiency processing equipment based on electrochemistry and film |
-
2010
- 2010-09-11 CN CN2010205273036U patent/CN201770562U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108911292A (en) * | 2018-09-13 | 2018-11-30 | 苏州特曼清环保科技有限公司 | A kind of industrial wastewater efficient process equipment and treatment process |
| CN109095698A (en) * | 2018-09-13 | 2018-12-28 | 苏州特曼清环保科技有限公司 | One kind filtering industrial waste water high-efficiency processing equipment based on electrochemistry and film |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110323 Termination date: 20110911 |