CN221296616U - Vehicle-mounted oil and gas field oil extraction wastewater treatment system - Google Patents
Vehicle-mounted oil and gas field oil extraction wastewater treatment systemInfo
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- CN221296616U CN221296616U CN202421227918.5U CN202421227918U CN221296616U CN 221296616 U CN221296616 U CN 221296616U CN 202421227918 U CN202421227918 U CN 202421227918U CN 221296616 U CN221296616 U CN 221296616U
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- 238000000605 extraction Methods 0.000 title claims abstract description 36
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 24
- 239000003921 oil Substances 0.000 claims abstract description 105
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 76
- 239000002351 wastewater Substances 0.000 claims abstract description 70
- 238000005345 coagulation Methods 0.000 claims abstract description 48
- 230000015271 coagulation Effects 0.000 claims abstract description 48
- 238000000926 separation method Methods 0.000 claims abstract description 29
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 208000034699 Vitreous floaters Diseases 0.000 claims abstract description 9
- 238000007667 floating Methods 0.000 claims abstract description 8
- 239000000295 fuel oil Substances 0.000 claims abstract description 8
- 238000010894 electron beam technology Methods 0.000 claims abstract description 5
- 239000002245 particle Substances 0.000 claims abstract description 5
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 3
- 239000010865 sewage Substances 0.000 claims description 27
- 239000000701 coagulant Substances 0.000 claims description 18
- 239000010802 sludge Substances 0.000 claims description 14
- 238000003825 pressing Methods 0.000 claims description 8
- 238000007790 scraping Methods 0.000 claims description 8
- 239000012747 synergistic agent Substances 0.000 claims description 6
- 239000002893 slag Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000011084 recovery Methods 0.000 claims description 2
- 239000011800 void material Substances 0.000 claims 2
- 241000894006 Bacteria Species 0.000 description 24
- 239000007787 solid Substances 0.000 description 19
- 238000003756 stirring Methods 0.000 description 15
- 238000000034 method Methods 0.000 description 13
- 238000005553 drilling Methods 0.000 description 12
- 241000295146 Gallionellaceae Species 0.000 description 8
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 239000003344 environmental pollutant Substances 0.000 description 5
- 230000007935 neutral effect Effects 0.000 description 5
- 231100000719 pollutant Toxicity 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000010812 mixed waste Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 238000011268 retreatment Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The utility model discloses a vehicle-mounted oil and gas field oil extraction wastewater treatment system which comprises an oil treatment unit, a solid-liquid separation unit and a water treatment unit which are sequentially communicated, wherein the oil treatment unit is used for removing floating oil and heavy oil on the surface of oily wastewater, the wastewater passes through the solid-liquid separation unit and then removes particles and floaters therein, the water inlet end of the water treatment unit is communicated with the water outlet end of the solid-liquid separation unit, the water treatment unit comprises a premixing tank, an electron accelerator and a coagulation tank, the premixing tank, the electron accelerator and the coagulation tank are sequentially communicated, the wastewater sequentially passes through the premixing tank, the electron accelerator and the coagulation tank, the wastewater is mixed with a water treatment agent in the premixing tank, the wastewater is subjected to electron beam irradiation treatment in the electron accelerator, and the wastewater is precipitated in the coagulation tank. The utility model can be directly carried on an automobile or a container, has the characteristic of flexibility, and can quickly reach a treatment site to treat wastewater on site.
Description
Technical Field
The utility model relates to the field of wastewater treatment, in particular to a vehicle-mounted oil and gas field oil extraction wastewater treatment system.
Background
Most of the oil and gas fields in China reach the middle and later stages of exploitation, and the exploitation efficiency of the oil and gas fields can be improved by utilizing hydraulic fracturing. But a large amount of oil extraction wastewater is generated in the production process. The mixed waste liquid consists of fracturing fluid, pollutants in stratum and the like, contains a large amount of petroleum compounds and industrial bacteria, has the characteristics of high COD, high suspended matters and high salinity, and most of oil extraction waste water cannot be directly utilized and needs to be recycled or discharged after reaching the standard through treatment. The traditional oil extraction wastewater treatment technology mainly adopts oil separation-coagulation-filtration, namely the so-called 'LaoSanyi' treatment, the treatment effect of the oil extraction wastewater treatment technology is generally difficult to reach reinjection or discharge standards, and the advanced treatment load is easily caused to be too heavy, so that the quality of effluent water is easily influenced.
In addition, because the oil extraction gas fields are located at different positions and under different geological conditions, the fluctuation of the water quality and the water quantity of the water is large, the oil extraction gas is flexible in place, the waste water collection cost is high, if timely and effective treatment cannot be achieved, the recycling of the oil extraction waste water is affected, and the waste of water resources is caused.
The utility model aims to provide a system for assisting the pretreatment of wastewater in an oil-gas field, in particular to an oil extraction plant with large water quality change, unstable water quantity and remote operation site.
Disclosure of utility model
Accordingly, the present utility model is directed to a vehicle-mounted oil and gas field oil extraction wastewater treatment system, which is aimed at helping the treatment of oil and gas field produced oil extraction wastewater.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a vehicle-mounted oil and gas field oil recovery wastewater treatment system, comprising:
An oil treatment unit for removing floating oil and heavy oil on the surface of the oily wastewater;
The water inlet end of the solid-liquid separation unit is communicated with the water outlet end of the oil treatment unit, and the wastewater flows through the solid-liquid separation unit to remove particles and floaters therein;
The water inlet end of the water treatment unit is communicated with the water outlet end of the solid-liquid separation unit; the water treatment unit comprises a premixing tank, an electron accelerator and a coagulation tank, wherein the premixing tank, the electron accelerator and the coagulation tank are sequentially communicated, and the wastewater sequentially flows through the premixing tank, the electron accelerator and the coagulation tank;
The wastewater is mixed with a water treatment agent in the premixing tank; carrying out electron beam irradiation treatment on the wastewater at the electron accelerator; the wastewater is precipitated in the coagulation tank.
Further, the device also comprises an administration unit, wherein the administration unit comprises a first dosing pump and a second dosing pump, the first dosing pump is communicated with the premixing tank, and coagulant and/or synergistic agent are added into the premixing tank by the first dosing pump; the second dosing pump is communicated with the coagulation tank, and the coagulant aid is added into the coagulation tank by the second dosing pump.
Further, the device also comprises a sludge filter press which is respectively communicated with the sludge discharge pipe of the premixing tank and the sludge discharge pipe of the coagulation tank;
and a filter pressing liquid outlet of the sludge filter press is communicated with a water inlet of the premixing tank.
Further, the oil treatment unit comprises an oil separation tank, and an oil scraping and slag scraping machine is arranged in the oil separation tank.
Further, the solid-liquid separation unit includes a mechanical grating comprising voids less than 10 mm and voids equal to 10 mm.
Further, a lift pump is arranged at the front end of the mechanical grating and used for introducing sewage into the mechanical grating.
Further, the filter pressing liquid outlet of the coagulation tank is communicated with the water inlet of the premixing tank.
Compared with the prior art, the utility model has the advantages that: the utility model can be directly carried on an automobile or a container, has the characteristic of flexibility, can quickly reach a treatment site, can treat the wastewater on site, can reach reinjection or biochemical treatment standard according to the treatment requirement, and saves time and economic investment.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic workflow diagram of an embodiment of the present utility model.
Reference numerals and description of the components referred to in the drawings:
1. An oil separation tank; 2. a mechanical grating; 3. a premix tank; 4. an electron accelerator; 5. a coagulation tank; 6. a sludge press filter; 7. a first dosing pump; 8. a second dosing pump; 9. and a booster pump.
Detailed Description
The technical scheme of the present utility model will be clearly and completely described in the following detailed description. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1, the application relates to a vehicle-mounted oil extraction wastewater treatment system, which comprises an oil treatment unit, a solid-liquid separation unit, a water treatment unit and a dosing unit, wherein the water inlet end of the solid-liquid separation unit is communicated with the water outlet end of the oil treatment unit, the water inlet end of the water treatment unit is communicated with the water outlet end of the solid-liquid separation unit, and the dosing unit is communicated with the water treatment unit. The oil treatment unit adopts an oil separation tank 1, an oil scraping and slag scraping machine is arranged in the oil separation tank 1, and oil-containing wastewater can remove floating oil and heavy oil on the surface of the wastewater through the action of the oil scraping and slag scraping machine. The solid-liquid separation unit adopts the mechanical grating 2, and the gap of the mechanical grating 2 is less than or equal to 10 mm, so that various particles and floaters with larger volumes can be intercepted and removed, and solid-liquid separation is realized. The water treatment unit comprises a premixing tank 3, an electron accelerator 4 and a coagulation tank 5, and the premixing tank 3, the electron accelerator 4 and the coagulation tank 5 are communicated in sequence. The wastewater treated by the mechanical grating 2 firstly enters the premixing tank 3, and after stirring is started, a pH regulator is added to regulate the pH of the wastewater to be neutral.
The dosing unit comprises a first dosing pump 7 and a second dosing pump 8, the first dosing pump 7 is communicated with the premixing tank 3, the first dosing pump 7 can add coagulant and/or synergistic agent into the premixing tank 3 and uniformly stir the wastewater and the coagulant and/or synergistic agent in the premixing tank 3, so that the wastewater is pretreated. The wastewater pretreated by the premixing tank 3 flows into the electron accelerator 4, the wastewater enters the electron accelerator 4 for electron beam irradiation treatment, and the electron accelerator 4 can inactivate bacteria in the wastewater and modify organic matters in the wastewater to enable the organic matters to be easy to be settled with a coagulant. The waste water after the irradiation treatment enters the coagulation tank 5, and as the second dosing pump 8 is communicated with the coagulation tank 5, the coagulant aid is added into the coagulation tank by the second dosing pump 8, and the sedimentation process is further completed by fully stirring the coagulant aid and the waste water.
The mud discharging pipe of the premixing tank 3 and the mud discharging pipe of the coagulation tank 5 are communicated with a mud filter press 6, mud generated by the premixing tank 3 and the coagulation tank 5 passes through the mud filter press 6, mud cakes are automatically collected into a mud bin, and filter pressing liquid returns to the premixing tank 3 for reprocessing. The application can treat oil extraction wastewater in high efficiency on site, the water quality of the wastewater treated by the application is obviously improved, and the bacterial content, suspended solids and oil content of the effluent reach reinjection and discharge standards. The application has the advantages of simple operation, easy management, flexible movement, quick arrival at the wastewater treatment site, scattered wastewater treatment, and time and space saving, thereby saving time and economic investment.
Examples
The water quality of inflow water of fracturing flowback fluid of a certain oil field for wastewater treatment by adopting the method disclosed by the application is as follows: 1500 mg/L of oily bacteria, 2.5X10: 10 3/mL of iron bacteria, 6.0X10: 10 3/mL of sulfate reducing bacteria, 2.5X10: 10 4/mL of saprophytic bacteria and 2214: 2214 mg/L of Suspended Solids (SS). The method comprises the following steps:
After floating oil and heavy oil are removed, drilling sewage passes through a mechanical grating 2 to intercept and remove large-volume particulate matters and floaters, and sewage treated by the mechanical grating 2 enters a premixing tank 3; stirring is started, the rotating speed is 100rpm, 60% of H 2SO4 is added as a pH value regulator, and the pH value is regulated to be neutral; adding coagulant PAFC (according to the amount of 2 per mill of drilling sewage) into a premixing tank 3 by a dosing system, and stirring for 20 min; carrying out irradiation treatment on the mixed sewage by using a 4-beam lower device of an electron accelerator, wherein the irradiation dose is 1 kGy; the treated effluent enters a coagulation tank 5, a coagulant aid PAM (according to the amount of 2 per mill of drilling sewage) is put into the coagulation tank 5, stirring is started, the rotation speed is 300rpm, sewage is coagulated in the coagulation tank 5 for 20 min, decoloring and condensing of oil extraction wastewater are completed, and settling is carried out for 2 h to obtain clarified effluent.
Treated effluent quality: oil content is 4.2 mg/L, sulfate reducing bacteria is 0/mL, iron bacteria is 0/mL, saprophytic bacteria is 2.5X10. 10 0/mL, and suspended solids is 5.9 mg/L. The results are compared in Table 1:
As shown in Table 1, the oil content, bacteria and suspended solids removal rate of the fracturing flowback fluid after the treatment of the utility model are over 99.7 percent, and the water quality of the effluent is obviously improved. Compared with the water quality of the water produced by independent coagulation, various indexes are obviously improved, which indicates that the electron accelerator can promote the removal of pollutants in the wastewater and improve the water quality of the water produced.
Examples
Water quality of inflow water of oil extraction wastewater of a certain oil field for wastewater treatment by adopting the method: oil 765 mg/L, iron bacteria 0.5X10. 10 3/mL, sulfate reducing bacteria 2.5X10. 10 3/mL, saprophyte 3X 10 3/mL, suspended Solids (SS) 432 mg/L. The method comprises the following steps:
After oil extraction wastewater is lifted by a booster pump 9 and enters an oil separation tank 1 to remove floating oil and heavy oil, drilling sewage passes through a mechanical grating 2 to intercept and remove large-volume particulate matters and floaters, and sewage treated by the mechanical grating 2 enters a premixing tank 3; stirring is started, the rotating speed is 100 rpm, 10 percent of NaOH is added as a pH value regulator, and the pH value is regulated to be neutral; adding a synergistic agent (according to the amount of 0.1 per mill of drilling sewage) into the premixing tank 3 by a dosing system, and stirring for 20 min; carrying out irradiation treatment on the mixed sewage by using a 4-beam lower device of an electron accelerator, wherein the irradiation dose is 1 kGy; the treated effluent enters a coagulation tank 5, a coagulant aid PAM (according to the amount of 2 per mill of drilling sewage) is put into the coagulation tank 5, stirring is started, the rotation speed is 300rpm, sewage is coagulated in the coagulation tank 5 for 20 min, decoloring and condensing of oil extraction wastewater are completed, and settling is carried out for 2 h to obtain clarified effluent.
Treated effluent quality: oil content 4.66 mg/L, sulfate reducing bacteria 0/mL, iron bacteria 0/mL, saprophytic bacteria 0/mL, suspended solids 7 mg/L. The results are compared in Table 2:
As shown in Table 2, the bacteria in the oil extraction wastewater are removed by 100%, the oil content and suspended solids removal rate are more than 98%, and the effluent quality is obviously improved. Compared with the water quality of the water produced by independent coagulation, various indexes are obviously improved, which indicates that the electron accelerator can promote the removal of pollutants in the wastewater and improve the water quality of the water produced.
Examples
Water quality of inflow water of oil extraction wastewater of a certain oil field for wastewater treatment by adopting the method: 650 mg/L of oily bacteria, 0.5X10. 10 3/mL of iron bacteria, 1.3X10. 10 2/mL of sulfate reducing bacteria, 70X 10/mL of saprophytic bacteria and mg/L of Suspended Solids (SS). The method comprises the following steps:
After oil extraction wastewater is lifted by a booster pump 9 and enters an oil separation tank 1 to remove floating oil and heavy oil, drilling sewage passes through a mechanical grating 2 to intercept and remove large-volume particulate matters and floaters, and sewage treated by the mechanical grating 2 enters a premixing tank 3; stirring is started, the rotating speed is 100 rpm, 10 percent of NaOH is added as a pH value regulator, and the pH value is regulated to be neutral; adding coagulant PAFC (according to the amount of 1.5 per mill of drilling sewage) into a premixing tank 3 by a dosing system, and stirring for 20 min; carrying out irradiation treatment on the mixed sewage by using a 4-beam lower device of an electron accelerator, wherein the irradiation dose is 1 kGy; the treated effluent enters a coagulation tank 5, a coagulant aid PAM (according to the amount of 2 per mill of drilling sewage) is put into the coagulation tank 5, stirring is started, the rotating speed is 300 rpm, sewage is coagulated in the coagulation tank 5 for 20min, decoloring and condensing of oil extraction wastewater are completed, and settling is carried out for 2 h to obtain clarified effluent.
Treated effluent quality: 1.7 mg/L of oil, 0/mL of sulfate reducing bacteria, 0/mL of iron bacteria, 0/mL of saprophytic bacteria and 6 mg/L of suspended solids. The results are compared in Table 3:
As shown in Table 3, the bacteria in the oil extraction wastewater are removed by 100% after the treatment of the utility model, the oil content and suspended solids removal rate are more than 98%, and the effluent quality is obviously improved. Compared with the water quality of the water produced by independent coagulation, various indexes are obviously improved, which indicates that the electron accelerator can promote the removal of pollutants in the wastewater and improve the water quality of the water produced.
Examples
Wastewater inlet water quality of a certain oil field drying pool for wastewater treatment by adopting the method: 1014 mg/L, 0.5X10 2/mL of iron bacteria, 6X 10 2/mL of sulfate reducing bacteria, 3.0X10 2/mL of saprophytic bacteria, and mg/L of Suspended Solids (SS) 738. The method comprises the following steps:
After oil extraction wastewater is lifted by a booster pump 9 and enters an oil separation tank 1 to remove floating oil and heavy oil, drilling sewage passes through a mechanical grating 2 to intercept and remove large-volume particulate matters and floaters, and sewage treated by the mechanical grating 2 enters a premixing tank 3; stirring is started, the rotating speed is 100 rpm, 60% of H 2SO4 is added as a pH value regulator, and the pH value is regulated to be neutral; adding coagulant PAFC (according to the amount of 2 per mill of drilling sewage) into a premixing tank 3 by a dosing system, and stirring for 20 min; carrying out irradiation treatment on the mixed sewage by using a 4-beam lower device of an electron accelerator, wherein the irradiation dose is 1 kGy; the treated effluent enters a coagulation tank 5, a coagulant aid PAM (according to the amount of 2 per mill of drilling sewage) is put into the coagulation tank 5, stirring is started, the rotating speed is 300 rpm, sewage is coagulated in the coagulation tank 5 for 20min, decoloring and condensing of oil extraction wastewater are completed, and settling is carried out for 2 h to obtain clarified effluent.
Treated effluent quality: 3.51 mg/L of oily matter, 0/mL of sulfate reducing bacteria, 0/mL of iron bacteria, 0/mL of saprophytic bacteria and 11 mg/L of suspended solid. The results are compared in Table 4:
As shown in Table 4, the bacteria in the oil extraction wastewater are removed by 100% after the treatment of the utility model, the oil content and suspended solids removal rate are more than 98%, and the effluent quality is obviously improved. Compared with the water quality of the water produced by independent coagulation, various indexes are obviously improved, which indicates that the electron accelerator can promote the removal of pollutants in the wastewater and improve the water quality of the water produced.
Through the 4 examples, the oil-gas field oil extraction wastewater, the oil extraction wastewater and the drying pool wastewater are treated by the method, the oil content, suspended solids and bacteria in the effluent are removed, the water quality is obviously improved, and the load of subsequent treatment is greatly reduced. The utility model can be carried on an automobile, has the characteristics of flexibility and maneuver, can quickly reach the treatment sites of various waste water of the oil and gas field, has small occupied area and simple process, can be coupled with other subsequent treatment processes, and saves the treatment time and the economic cost.
Preferably, referring to fig. 1, the front end of the mechanical grating 2 in this embodiment is provided with a lift pump for introducing sewage into the mechanical grating 2.
Preferably, in this embodiment, the grating teeth in the grating mesh of the mechanical grating 2 are made of engineering plastics or stainless steel, and the rest of the structures are made of stainless steel.
Preferably, the liner of the premix tank 3 in this embodiment is made of epoxy resin.
Preferably, referring to fig. 1, the sludge press filter 6 of this embodiment is provided with an automatic sludge hopper.
Preferably, in this embodiment, the filter pressing liquid outlet of the coagulation tank 5 is communicated with the water inlet of the premixing tank 3, so that the filter pressing liquid outlet can be further purified.
The wastewater in the oil separation tank 1 flows to the mechanical grating 2 through the water pipe, is filtered by the mechanical grating 2, flows into the premixing tank 3 through the water pipe, the water outlet of the premixing tank 3 is communicated with the water inlet of the electronic accelerator 4 through the water pipe, the wastewater flows into the device under the beam of the electronic accelerator 4 through the water pipe, the water outlet of the electronic accelerator 4 is communicated with the water inlet of the coagulation tank 5 through the water pipe, and the wastewater flows into the coagulation tank 5 from the electronic accelerator 4 through the water pipe.
The utility model carries out the steps of wastewater treatment, comprising: firstly, oil extraction wastewater is subjected to oil removal through an oil separation tank 1, various solid particles and floaters are intercepted and removed through a mechanical grating 2, solid-liquid separation is realized, wastewater treated through the mechanical grating 2 enters a premixing tank 3, coagulant or synergistic agent is added after the wastewater enters the premixing tank 3, the wastewater is fully and uniformly mixed to be pretreated, wastewater flowing out of the premixing tank 3 enters an electron accelerator 4 beam lower device for electron beam irradiation treatment, finally, the irradiated wastewater enters a coagulation tank 5, a coagulant aid is added, a precipitation process is further completed, the produced sludge passes through a sludge filter press 6, mud cakes are automatically collected into a mud bin, and filter pressing liquid returns to the premixing tank 3 for retreatment.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A vehicle-mounted oil and gas field oil recovery wastewater treatment system, comprising:
An oil treatment unit for removing floating oil and heavy oil on the surface of the oily wastewater;
The water inlet end of the solid-liquid separation unit is communicated with the water outlet end of the oil treatment unit, and the wastewater flows through the solid-liquid separation unit to remove particles and floaters therein;
The water inlet end of the water treatment unit is communicated with the water outlet end of the solid-liquid separation unit; the water treatment unit comprises a premixing tank, an electron accelerator and a coagulation tank, wherein the premixing tank, the electron accelerator and the coagulation tank are sequentially communicated, and the wastewater sequentially flows through the premixing tank, the electron accelerator and the coagulation tank;
The wastewater is mixed with a water treatment agent in the premixing tank; carrying out electron beam irradiation treatment on the wastewater at the electron accelerator; the wastewater is precipitated in the coagulation tank.
2. The vehicle-mounted oil and gas field oil extraction wastewater treatment system according to claim 1, further comprising an administration unit, wherein the administration unit comprises a first dosing pump and a second dosing pump, the first dosing pump is communicated with the premixing tank, and the first dosing pump adds coagulant and/or synergistic agent into the premixing tank; the second dosing pump is communicated with the coagulation tank, and the coagulant aid is added into the coagulation tank by the second dosing pump.
3. The vehicle-mounted oil and gas field oil extraction wastewater treatment system according to claim 1, further comprising a sludge press filter, wherein the sludge press filter is respectively communicated with a sludge discharge pipe of the premixing tank and a sludge discharge pipe of the coagulation tank;
and a filter pressing liquid outlet of the sludge filter press is communicated with a water inlet of the premixing tank.
4. The vehicle-mounted oil and gas field oil extraction wastewater treatment system according to claim 1, wherein the oil treatment unit comprises an oil separation tank, and an oil scraping and slag scraping machine is arranged in the oil separation tank.
5. The on-board oil and gas field production wastewater treatment system of claim 1, wherein the solid-liquid separation unit comprises a mechanical grating comprising a void of less than 10 mm and a void equal to 10 mm.
6. The on-board oil and gas field oil extraction wastewater treatment system according to claim 5, wherein a lift pump is arranged at the front end of the mechanical grating for introducing sewage into the mechanical grating.
7. The vehicle-mounted oil and gas field oil extraction wastewater treatment system according to claim 1, wherein a filter pressing liquid outlet of the coagulation tank is communicated with a water inlet of the premixing tank.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221296616U true CN221296616U (en) | 2024-07-09 |
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