CN1453227A - Biochemical reactor for treating oil field sewage and its treating process - Google Patents
Biochemical reactor for treating oil field sewage and its treating process Download PDFInfo
- Publication number
- CN1453227A CN1453227A CN 02109556 CN02109556A CN1453227A CN 1453227 A CN1453227 A CN 1453227A CN 02109556 CN02109556 CN 02109556 CN 02109556 A CN02109556 A CN 02109556A CN 1453227 A CN1453227 A CN 1453227A
- Authority
- CN
- China
- Prior art keywords
- compartment
- zone
- oxygen
- water
- sewage
- 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
Images
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The present invention belongs to the field of sewage treating technology and is especially biochemical reactor for treating oil fieldsewage and its treating process. The present invention has anaerobic region, oxygen lacking region, aerobic region and depositing region connected successively and the separating chambers for separating different reaction regions are constituted via assembling tank and sludge sump. In the upper part of the separating chamber for the anaerobic region and the oxygen lacking region, there is air collecting chamber connected to air collecting equipment via pipeline. The technological process is one in deflecting anaerobic region, oxygen lacking region, aerobic aerating region and depositing region connected serially. The present invention has COD eliminating rate greater than 85 % and oil eliminating rate greater than 96 % and is used in biological treatment of sewage containing thick oil.
Description
Technical field
The invention belongs to sewage treatment area, specifically a kind of biochemical reactor for treating oil field sewage and treatment process thereof of being used for.
Background technology
Generally believe that at present the difficult point of oil-field thick-oil advanced treatment of wastewater is by polymkeric substance, tensio-active agent and viscosity greater than 10000mPas, the removal of the solvability mineral wet goods solubility Persistent organic pollutants of density 0.95～1.20g/L.The biodegradability extreme difference of this sewage, BOD/COD is generally between 0.03～0.10, and the variation of water-quality constituents is bigger, and different oil recovery factories, different oil producing region, different treatment station, even all not different with the recovered water water quality of producing well make the processing of this waste water difficult more.(the number of applying for a patent: 99225001 of some treatment facilities; 99225002; 01202850; 94206502) standard of this wastewater treatment to re-injection water still can't can only be realized qualified discharge.The activated sludge process in Indonesia Arun oil field also can only be that the COD of the light crude sewage of 0.4 good biodegradability handles (Madian E.S et al. below the 150mg/L with BOD/COD, Treating of Produced Water for Surface Discharge at the Arun Gas CondensateField, SPE paper 28946, presented at the SPE international Symposium onOilfield Chemistry, San Antonio Texas, USA (14-17) February 1995).The method of general physical Chemical bond biological treatment, as GAC-FBR (gac biological fluidized-bed reactor) (Lawrence A.W et al., Regional Assessment of Produced Water Treatment andDisposal Practices and Research Needs.Presented at the SPE/EPA Exploration﹠amp; Production Environmental Conference, Houston TX, USA (27-29) March1995) is the novel process of handling offshore oil field waste water, but this technology locate target still just Oil and not with water outlet COD as controlling index, treat effluent also can't reach the standard of China's " sewage comprehensive discharge ".
Summary of the invention
The oilfield sewage bio-reactor and the treatment process thereof that the purpose of this invention is to provide a kind of anaerobism-anoxic-aerobic-settling tank composite multifunction biochemical reaction, it can adopt efficient anaerobic-anaerobic-aerobic series connection sewage water treatment method, can be to oilfield sewage, particularly saliferous, the middle lower concentration condensed oil sewage that contains hardly degraded organic substance carry out deep biochemical and handle, and intermediate concentration saliferous, hydrocarbonaceous, nitrogenous effluent are effectively handled.
To achieve these goals, this technical scheme that is is as follows: the multi-functional biochemical reactor of oilfield sewage, be installed in oil trap, after flotation machine and the sand filter, it is characterized in that: have anaerobic zone, oxygen-starved area, four kinds of reaction zones of aerobic zone and settling region of linking to each other successively, the compartment in differential responses district all can be assembled by structure identical casing and sludge sump; Described anaerobic zone, each upper compartment of oxygen-starved area are respectively equipped with collection chamber and are connected with gas collection equipment pipeline;
By embedded groove the horizontal baffling baffle plate is installed in the compartment of described anaerobic zone, compartment is divided into the downstream room upstream room, 45～60 ° baffling angle is established in the baffle plate bottom; The compartment bottom of described aerobic zone is provided with distribution device, links to each other with air compressor machine; The compartment of described settling region bottom be provided with can before and after the level and smooth swash plate that raises, swash plate and horizontal plane angle greater than, equal 30 °, and bottom the settling region, be provided with mud return line simultaneously and communicate with anaerobic zone; The compartment top of described settling region is provided with water shoot, and communicates with the oxygen-starved area by the water return line; Between anaerobic zone and the oxygen-starved area, be provided with the water distribution bend pipe that can prevent out aqueous reflux between oxygen-starved area and the aerobic zone;
Described sludge sump and collection chamber all are designed to arc, and described sludge sump is provided with sewage draining exit; Described anaerobic zone has 2～10 compartments, and the oxygen-starved area has 1～5 compartment, and aerobic zone has 1～3 compartment and the settling region has 1 compartment; When the compartment number of aerobic zone more than or equal to 2 the time, be provided with the water distribution bend pipe between the compartment in its district; When aerobic zone adopts the sequence batch (operation scheme, between aerobic zone and settling region, be provided with and strain hydrophone;
Use the treatment process of the multi-functional biochemical reactor of described oilfield sewage, adopt anaerobic-anoxic-aerobic series system, with organic waste water particularly COD concentration be 400～2600mg/L, saliferous, the organic waste water that contains lower concentration in the difficult degradation of thick matter crude oil, deliver to the top of the anaerobic zone first compartment downstream room through sump pump, sewage enters upstream room via downstream room from the bottom, downstream room by second compartment of anaerobic zone enters upstream room again, flow to the 5th compartment successively, sewage flows out from the upstream room of the 5th compartment, enter the oxygen-starved area by the water distribution bend pipe, the oxygen-starved area water outlet enters into aerobic zone by the water distribution bend pipe, the air that air compressor machine is sent here in aerobic zone mixes with sewage by the distribution device of its bottom, the direct overflow of aerobic zone water outlet or by straining hydrophone then to the settling region, discharge from water shoot again, the water part, settling region forms anaerobic environment by water return line partial reflux to the oxygen-starved area, dephosphorization denitrogenation, the mud in the dephosphorization and denitrification process is back in the bottom sludge sump of upstream room under anaerobic zone first compartment by mud return line and sludge reflux pump simultaneously;
The distribution device aeration rate is controlled between 1.5～5mg/L; Water outlet is by being back to the oxygen-starved area in 2: 1～1: 2 in the described reactor operational process; Described anaerobic zone volumetric loading is 0.2～1.0KgCOD/m
3D, aerobic zone volumetric loading are 1.0～5.0KgCOD/m
3D; When treatments B OD/COD was 0.03～0.10 sewage, pH was 6.0～7.2, and the anaerobic zone hydraulic detention time is controlled within 72～144h, and the hydraulic detention time of aerobic zone is controlled within 12～24h; When treatments B OD/COD was 0.11～0.45 sewage, pH was 6.2～7.0, and the anaerobic zone hydraulic detention time is controlled between 36～72h, and the hydraulic detention time of aerobic zone is controlled within 6～12h.
The present invention has following advantage:
1. reactor of the present invention is based on the ultimate principle of anaerobic baffled reactor, UASB, fixed-film biological reactor, SBR and conventional activated sludge process in the prior art, it has carried out compound to technologies such as anaerobic baffled reactor, UASB, SBR, fixed-film biological reactor and conventional activated sludge process and has improved, make its technical advance, economy, suitability all surpass above-mentioned reactor and technological process, particularly for the processing of nitrogenous phosphorus waste water under while saliferous, hydrocarbonaceous, the processing of condensed oil sewage that contains Persistent organic pollutants and high salt, the hydrocarbonaceous situation.Difference according to water quality and quantity is adjusted operational conditions, anaerobic zone can make the large amount of organic acidication or deviates from the reactor, aerobic zone can further be deviate from a large amount of small organic molecules, reduce Pollutant levels, reach required processing horizontal, thereby make tandem process have extensive applicability, reliability and economy.Arrive the oxygen-starved area for high salt, hydrocarbonaceous and nitrogen phosphorus waste water by effluent recycling, mud is back to when anaerobic zone can be realized organism and nitrogen phosphorus and removes.
The utility model is a kind of modified version of anaerobic baffled reactor, its principal character has been added aerobic zone and settling region on the basis of baffled reactor anaerobism single structure, and changes original casing integral structure into formed by casing, two kinds of combination of monomers of sludge sump composite structure.Its feature is that also anaerobism of the present utility model, aerobic agent structure with difference in functionality districts such as settling regions all can be obtained by these identical or different two kinds of monomeric combinations of specification, therefore under the situation of modifier agent structure not, can change treatment process arbitrarily by increasing baffle, collection chamber, aerator, level and smooth swash plate etc., make this device in Industrial Wastewater Treatment, have more actual application value.
2. anaerobic zone of the present utility model utilizes self-produced gas, waterpower to mix and non-carrier of oxygen makes part biological suspension part formation of deposits suspension floc sludge and the good layering of granule sludge, can realize non-power consumption, the no stink of anaerobic zone sealing, the methane that produces can be used for the device insulation.
3. the utility model is mainly handled oilfield sewage, but also can handle other feasibility of CW for special industrial wastewater and sanitary sewage, also can handle through behind the appropriate regulation at 0.03～0.10 dense oil extraction wastewater BOD/COD.The water quality scope can be wide to COD 100～20000mg/L, and Oil 0～260mg/L only needs adjusting process parameter and different unit combination.
4. adopt the utility model can make the air-flow of anaerobic zone and waterpower stirring replace mechanical stirring, but its save energy reduce facility investment, makes things convenient for operational management; In addition, the result that the utility model is optimized according to hydromeehanics is designed to the semicircle camber with sludge sump, with waterpower and the biological dead band that reduces reactor, enhances productivity.
Description of drawings
Fig. 1 is the structural representation of apparatus of the present invention.
Embodiment
Embodiment 1
Reactor of the present invention is installed in oil trap, after flotation machine and the sand filter, connect with four kinds of reaction zones by water pump 1 with anaerobic zone 7, oxygen-starved area 9, aerobic zone 11 and settling region 14, the described anaerobic zone 7 of present embodiment has 5 compartments, oxygen-starved area 9 has 1 compartment, and aerobic zone 11 has 1 compartment and settling region 14 has 1 compartment; The compartment in differential responses district all can be assembled by structure identical casing 18 and sludge sump 17; Described anaerobic zone 7, oxygen-starved area 9 each upper compartment are respectively equipped with collection chamber 16 and are connected with gas collection equipment 26 pipelines respectively; By embedded groove horizontal baffling baffle plate 15 is installed in described anaerobic zone 7 compartments, compartment is divided into downstream room 3, upstream room 4,45～60 ° baffling angle is established in baffle plate 15 bottoms; Between anaerobic zone 7 and the oxygen-starved area 9, be provided with the water distribution bend pipe 8 that can prevent out aqueous reflux between oxygen-starved area 9 and the aerobic zone 11; The compartment bottom of described aerobic zone 11 is provided with distribution device 12, links to each other with air compressor machine 10, and distribution device 12 aeration rates are controlled between 1.5～5mg/L, and present embodiment is 3mg/L; The compartment of described settling region 14 bottom be provided with can before and after the level and smooth swash plate 21 that raises, swash plate 21 equals 30 ° with horizontal plane angle, and 14 bottoms are provided with mud return line 31 and communicate with anaerobic zone 7 by sludge reflux pump 24 in the settling region simultaneously; The compartment top of described settling region 14 is provided with water shoot 25, and communicates with oxygen-starved area 9 by water return line 27; Described sludge sump 17 bottoms and collection chamber 16 tops all are designed to semicircular arc, and described sludge sump 17 is provided with sewage draining exit 22.
Its treatment process is as follows:
The employing basic craft course that anaerobism-anoxic-aerobic series connection composite multifunction biochemical reactor is disposed of sewage is referring to Fig. 1, processing for the difficult degradation condensed oil sewage, the processing of nitrogenous phosphorus sewage need be adopted reactor of the present invention to carry out anaerobism-anoxic-aerobic tandem process and handle, will be pretreated through the oil removal flotation, COD concentration is that the condensed oil sewage of 400～2600mg/L is through sump pump 1, deliver to anaerobic zone 7 first compartment downstream rooms 3 tops by water distribution bend pipe 8, flowing through behind the upstream room 4 again, overflow enters second compartment, flow to the 5th compartment successively, the 5th compartment water outlet flows into oxygen-starved area 9 by water distribution bend pipe 8, collection chamber 16 is all established in the top in anaerobic zone 9 each compartment and oxygen-starved area 9, and gas can be collected separately; Oxygen-starved area 9 water outlets flow into aerobic zone 11 by water distribution bend pipe 8, and gas distribution equipment 12 is installed in aerobic zone 11 bottoms, and the air that air compressor machine 10 is sent here mixes with sewage, and aerobic zone 11 water outlets flow directly into settling region 14; Settling region 14 water outlets form anaerobic environment, dephosphorization denitrogenation by the bottom of water return line 27 partial reflux to oxygen-starved area 9; Simultaneously (be equivalent to A2/O technology during dephosphorization denitrogenation, concrete operation method is referring to document 1: Zheng Xingcan, Li Yaxin writes, the sewage water dephosphorization denitrification technology, China Construction Industry Press, Beijing: 1998:124-125), mud is back in the sludge sump 17 of anaerobic zone 7 first compartments by mud return line 31 sludge reflux pumps 24.
Wherein: described anaerobic zone 7 volumetric loadings are 0.2～1.0KgCOD/m
3D, aerobic zone 11 volumetric loadings are 1.0～5.0KgCOD/m
3D.
Present embodiment reactor for treatment condensed oil sewage (anoxic-aerobic process is handled the design and operation of thick-oil waste water, Chinese water supply and drainage, 1999 for method reference literature 2: Wang Li, Wang Yan), when BOD/COD was 0.17, the COD volumetric loading was 1.0kg COD/m
3D, 20～30 ℃ of experiment water temperatures, the anaerobic zone hydraulic detention time is 60h, water inlet COD 1600mg/L, Oil 260mg/L, Cl
-The clearance of water outlet is respectively 87%, 98% and 46% during 1600mg/L.
Present embodiment is handled condensed oil sewage, and when BOD/COD was 0.19, water inlet COD volumetric loading was 0.6kg COD/m
3D, 20～30 ℃ of water temperatures, pH is 6.0～7.2, anaerobic zone 7 hydraulic detention times are 48h water inlet COD 760mg/L, Oil 160mg/L, Cl
-The clearance of water outlet is respectively 85%, 96% and 42% during 1600mg/L.
The BOD/COD of reactor for treatment condensed oil sewage of the present invention is 0.36 o'clock, and water temperature is middle temperature, and anaerobic zone pH is 6.2～7.0, and the anaerobic zone hydraulic detention time is 36h, water inlet COD 750mg/L, Oil58mg/L, Cl
-1560mg/L, TP 3.75mg/L, NO
3 -N 50mg/L, NH
4 +The clearance of water outlet is respectively 90%, 97%, 38%, 91%, 95% and 90% during-N 25mg/L.As seen the enforcement under different oilfield sewage condition of water quality has all reached treatment effect preferably to this method with technology.
The principle of the invention is:
It only is that 0.03～0.10 sewage is when directly handling that the multi-functional biochemical reactor of the present invention is handled in the condensed oil sewage process BOD/COD, anaerobic zone 7 is controlled at the acidication stage by hydraulic detention time, water temperature is not controlled, pH is 6.0～7.2, the anaerobic zone hydraulic detention time is controlled within 72～144h, the hydraulic detention time of aerobic zone 11 is controlled within 12～24h, and DO is between 1.5～5mg/L in control.Water outlet was back to oxygen-starved area 9 by 2: 1～1: 2 in the reactor operational process, and the mud in settling region 14 sludge sumps 17 is back to anaerobic zone 7 first compartments.
When the multi-functional biochemical reactor of the present invention is sewage disposal between 0.11～0.45 to BOD/COD, anaerobic zone 7 is controlled at the acidication stage by hydraulic detention time, water temperature is not controlled, pH is 6.2～7.0, anaerobic zone 7 hydraulic detention times are controlled between 36～72h, the hydraulic detention time of aerobic zone 11 is controlled within 6～12h, DO is between 1.5～5mg/L in control, water outlet was back to oxygen-starved area 9 by 2: 1～1: 2 in the reactor operational process, and the mud in settling region 14 sludge sumps 17 is back to anaerobic zone 7 first compartments.
In addition, when reactor aerobic zone 11 of the present invention adopts the sequence batch (operation scheme, be provided with between aerobic zone 11 and settling region 14 and strain hydrophone 13, aerobic zone 9 water outlets flow into settling region 14 by straining hydrophone 13; Also can connect between the anaerobic zone 7 in the reactor of the present invention by pipe connecting.
Claims (12)
1. multi-functional biochemical reactor of oilfield sewage, be installed in oil trap, after flotation machine and the sand filter, it is characterized in that: have anaerobic zone (7), oxygen-starved area (9), (14) four kinds of reaction zones of aerobic zone (11) and settling region of linking to each other successively, the compartment in differential responses district all can be assembled by identical casing of structure (18) and sludge sump (17); Described anaerobic zone (7), each upper compartment of oxygen-starved area (9) are respectively equipped with collection chamber (16) and are connected with gas collection equipment (26) pipeline.
2. according to the multi-functional biochemical reactor of the described oilfield sewage of claim 1, it is characterized in that: by embedded groove horizontal baffling baffle plate (15) is installed in the compartment of described anaerobic zone (7), compartment is divided into downstream room (3) upstream room (4), and 45～60 ° baffling angle is established in baffle plate (15) bottom.
3. according to the multi-functional biochemical reactor of the described oilfield sewage of claim 1, it is characterized in that: the compartment bottom of described aerobic zone (11) is provided with distribution device (12), links to each other with air compressor machine (10).
4. according to the multi-functional biochemical reactor of the described oilfield sewage of claim 1, it is characterized in that: the compartment of described settling region (14) bottom be provided with can before and after the level and smooth swash plate (21) that raises, swash plate (21) and horizontal plane angle greater than, equal 30 °, and (14) bottom is provided with mud return line (31) and communicates with anaerobic zone (7) in the settling region simultaneously; The compartment top of described settling region (14) is provided with water shoot (25), and communicates with oxygen-starved area (9) by water return line (27).
5. according to claim 1, the multi-functional biochemical reactor of 3 or 4 described oilfield sewages, it is characterized in that: between anaerobic zone (7) and oxygen-starved area (9), be provided with the water distribution bend pipe (8) that can prevent out aqueous reflux between oxygen-starved area (9) and the aerobic zone (11).
6. according to the multi-functional biochemical reactor of the described oilfield sewage of claim 1, it is characterized in that: described sludge sump (17) and collection chamber (16) all are designed to arc, and described sludge sump (17) is provided with sewage draining exit (22).
7. according to the multi-functional biochemical reactor of the described disposing polluted water in oil of claim 1, it is characterized in that: described anaerobic zone (7) has 2～10 compartments, oxygen-starved area (9) has 1～5 compartment, and aerobic zone (11) has 1～3 compartment and settling region (14) have 1 compartment; When the compartment number of aerobic zone (11) more than or equal to 2 the time, be provided with water distribution bend pipe (8) between the compartment in its district.
8. according to the multi-functional biochemical reactor of the described oilfield sewage of claim 1, it is characterized in that: when aerobic zone (11) adopts the sequence batch (operation scheme, between aerobic zone (11) and settling region (14), be provided with and strain hydrophone (13).
9. an application rights requires the treatment process of the multi-functional biochemical reactor of 1 described oilfield sewage, it is characterized in that: adopt anaerobic-anoxic-aerobic series system, organic waste water is delivered to anaerobic zone (7) through sump pump (1), successively through compartment downstream room (3) and upstream room (4), enter oxygen-starved area (9) by water distribution bend pipe (8) again, oxygen-starved area (9) water outlet enters into aerobic zone (11) by water distribution bend pipe (8), the air that air compressor machine (10) is sent here in aerobic zone (11) mixes with sewage by the distribution device (12) of its bottom, the direct overflow of aerobic zone (11) water outlet or by straining hydrophone (13) then to the settling region (14), discharge from water shoot (25) again, water part, settling region (14) forms anaerobic environment by water return line (27) partial reflux to oxygen-starved area (9), dephosphorization denitrogenation, the mud in the dephosphorization and denitrification process is back in anaerobic zone (7) the first compartment sludge sumps (17) by mud return line (31) simultaneously.
10. according to the described treatment process of claim 9, it is characterized in that: distribution device (12) aeration rate is controlled between 1.5～5mg/L; Water outlet is by being back to oxygen-starved area (9) in 2: 1～1: 2 in the described reactor operational process; Described anaerobic zone (7) volumetric loading is 0.2～1.0KgCOD/m
3D, aerobic zone (11) volumetric loading is 1.0～5.0KgCOD/m
3D.
11. according to the described treatment process of claim 9, it is characterized in that: when treatments B OD/COD is 0.03～0.10 sewage, pH is 6.0～7.2, and the anaerobic zone hydraulic detention time is controlled within 72～144h, and the hydraulic detention time of aerobic zone (11) is controlled within 12～24h.
12. according to the described treatment process of claim 9, it is characterized in that: when treatments B OD/COD is 0.11～0.45 sewage, pH is 6.2～7.0, and anaerobic zone (7) hydraulic detention time is controlled between 36～72h, and the hydraulic detention time of aerobic zone (11) is controlled within 6～12h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021095566A CN1180996C (en) | 2002-04-27 | 2002-04-27 | Biochemical reactor for treating oil field sewage and its treating process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021095566A CN1180996C (en) | 2002-04-27 | 2002-04-27 | Biochemical reactor for treating oil field sewage and its treating process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1453227A true CN1453227A (en) | 2003-11-05 |
| CN1180996C CN1180996C (en) | 2004-12-22 |
Family
ID=29256722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021095566A Expired - Fee Related CN1180996C (en) | 2002-04-27 | 2002-04-27 | Biochemical reactor for treating oil field sewage and its treating process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1180996C (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100361910C (en) * | 2005-12-15 | 2008-01-16 | 南京大学 | Waste water treatment method of anerobic- anoxia-aerobic-coagulated precipitation |
| CN101428904B (en) * | 2008-12-05 | 2010-12-29 | 安徽工业大学 | Gas winding cycle stream stirring system for open type oxygen lack pool |
| CN102583674A (en) * | 2012-03-02 | 2012-07-18 | 大连贝斯特环境工程设备有限公司 | Integrated oily mud wastewater pipe bundle coagulation and separation reactor |
| CN103524001A (en) * | 2013-10-28 | 2014-01-22 | 波鹰(厦门)科技有限公司 | Treatment method for high fat food processing wastewater |
| CN103951062A (en) * | 2014-05-04 | 2014-07-30 | 中国石油大学(北京) | Anaerobic-aerobic baffled reactor |
| CN104944697A (en) * | 2015-06-12 | 2015-09-30 | 浙江大学 | Microbial electrolysis cell-Fenton combined treatment device and process for treating furniture production wastewater |
| CN105084637A (en) * | 2014-05-07 | 2015-11-25 | 中国石化扬子石油化工有限公司 | Device for integrating baffling denitrification and dephosphorization and COD degradation |
| CN105236571A (en) * | 2015-10-26 | 2016-01-13 | 中国石油天然气股份有限公司 | Method for treating ASP flooding produced water by BESI biological process |
| CN105948252A (en) * | 2016-06-23 | 2016-09-21 | 李相文 | Up-flow activated sludge biofilm oxidation ditch organic sewage treatment technique and system |
| CN106587541A (en) * | 2017-01-11 | 2017-04-26 | 江苏八达科技股份有限公司 | Method for efficiently treating oilfield wastewater |
| CN109534500A (en) * | 2018-05-03 | 2019-03-29 | 哈尔滨工业大学（威海） | One kind passing through multi-functional A2The method that O technique optimizes denitrogenation dephosphorizing |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100439262C (en) * | 2006-11-10 | 2008-12-03 | 苏州科技学院 | Air-floating pretreatment method and device for high-concentration organic sewage |
-
2002
- 2002-04-27 CN CNB021095566A patent/CN1180996C/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100361910C (en) * | 2005-12-15 | 2008-01-16 | 南京大学 | Waste water treatment method of anerobic- anoxia-aerobic-coagulated precipitation |
| CN101428904B (en) * | 2008-12-05 | 2010-12-29 | 安徽工业大学 | Gas winding cycle stream stirring system for open type oxygen lack pool |
| CN102583674A (en) * | 2012-03-02 | 2012-07-18 | 大连贝斯特环境工程设备有限公司 | Integrated oily mud wastewater pipe bundle coagulation and separation reactor |
| CN103524001A (en) * | 2013-10-28 | 2014-01-22 | 波鹰(厦门)科技有限公司 | Treatment method for high fat food processing wastewater |
| CN103951062A (en) * | 2014-05-04 | 2014-07-30 | 中国石油大学(北京) | Anaerobic-aerobic baffled reactor |
| CN103951062B (en) * | 2014-05-04 | 2016-02-17 | 中国石油大学(北京) | A kind of anaerobic-aerobic baffled reactor |
| CN105084637A (en) * | 2014-05-07 | 2015-11-25 | 中国石化扬子石油化工有限公司 | Device for integrating baffling denitrification and dephosphorization and COD degradation |
| CN105084637B (en) * | 2014-05-07 | 2017-07-07 | 中国石化扬子石油化工有限公司 | A kind of baffling denitrification dephosphorization and COD degradation integrating device |
| CN104944697A (en) * | 2015-06-12 | 2015-09-30 | 浙江大学 | Microbial electrolysis cell-Fenton combined treatment device and process for treating furniture production wastewater |
| CN105236571A (en) * | 2015-10-26 | 2016-01-13 | 中国石油天然气股份有限公司 | Method for treating ASP flooding produced water by BESI biological process |
| CN105948252A (en) * | 2016-06-23 | 2016-09-21 | 李相文 | Up-flow activated sludge biofilm oxidation ditch organic sewage treatment technique and system |
| CN105948252B (en) * | 2016-06-23 | 2019-11-05 | 李相文 | Up flow type activated sludge biological film oxidation ditch organic sewage treatment process and its system |
| CN106587541A (en) * | 2017-01-11 | 2017-04-26 | 江苏八达科技股份有限公司 | Method for efficiently treating oilfield wastewater |
| CN109534500A (en) * | 2018-05-03 | 2019-03-29 | 哈尔滨工业大学（威海） | One kind passing through multi-functional A2The method that O technique optimizes denitrogenation dephosphorizing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1180996C (en) | 2004-12-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1180996C (en) | Biochemical reactor for treating oil field sewage and its treating process | |
| CN100415666C (en) | Combined process of reinforced biochemical flocculation and artificial wet land treatment of sewage | |
| CN1944289A (en) | Pre-treating process for sewage from thick oil refining | |
| CN202072569U (en) | Oilfield sewage treatment device | |
| CN103288311B (en) | Slack coal pressure gasification wastewater resourceful treatment method and treatment system as well as application | |
| CN104803555A (en) | Mobile skid-mounted equipment for efficient water treatment | |
| CN202519137U (en) | Combined treatment device of waste incineration field percolate | |
| CN104291522A (en) | Method for treating industrial wastewater | |
| CN105523692A (en) | Biochemical treatment method for improving polymer-containing sewage matrix of oil field | |
| CN103539324B (en) | Biological ceramsite device for deeply treating domestic wastewater as well as process thereof | |
| CN100337933C (en) | City sewage treating process and system | |
| Masunaga et al. | Direct treatment of polluted river water by the multi-soil-layering method | |
| CN102363537B (en) | Sludge backflow treatment system for secondary biochemical system | |
| CN102311203B (en) | Pretreatment method for high-acid inferior crude oil processing wastewater | |
| CN208649072U (en) | A kind of sewage disposal system | |
| van Nieuwenhuijzen | Scenario studies into advanced particle removal in the physical-chemical pre-treatment of wastewater | |
| CN2540408Y (en) | Multifunctional biochemical treatment device for oil field sewage | |
| CN1569695A (en) | Integrated technology and device for processing oil-field well-drilling waste water | |
| CN101302063B (en) | Industrial sewage processing unit and industrial sewage process method | |
| CN1316394A (en) | Process for reclaiming sewage | |
| CN1587101A (en) | Biological filter tower for sewage deep treatment | |
| Henze et al. | An analysis of wastewater treatment strategies for Eastern and Central Europe | |
| Schmidt Jr et al. | Carbon diversion and its role in energy efficiency | |
| CN202529944U (en) | Inferior heavy oil refinery sewage treatment plant | |
| Ho et al. | Enhanced primary treatment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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 | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |