CN110818182B - Environment-friendly sewage treatment plant - Google Patents
Environment-friendly sewage treatment plant Download PDFInfo
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- CN110818182B CN110818182B CN201911091787.6A CN201911091787A CN110818182B CN 110818182 B CN110818182 B CN 110818182B CN 201911091787 A CN201911091787 A CN 201911091787A CN 110818182 B CN110818182 B CN 110818182B
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- 239000010865 sewage Substances 0.000 title claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 80
- 238000004062 sedimentation Methods 0.000 claims abstract description 32
- 238000001914 filtration Methods 0.000 claims abstract description 22
- 239000000126 substance Substances 0.000 claims abstract description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000004321 preservation Methods 0.000 claims abstract description 10
- 239000006004 Quartz sand Substances 0.000 claims abstract description 9
- 239000012528 membrane Substances 0.000 claims abstract description 8
- 238000000108 ultra-filtration Methods 0.000 claims abstract description 7
- 230000008676 import Effects 0.000 claims abstract description 5
- 238000000926 separation method Methods 0.000 claims description 35
- 238000005406 washing Methods 0.000 abstract description 27
- 239000004568 cement Substances 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000037452 priming Effects 0.000 abstract 2
- 230000005389 magnetism Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 46
- 235000019198 oils Nutrition 0.000 description 46
- 239000007788 liquid Substances 0.000 description 15
- 238000011010 flushing procedure Methods 0.000 description 8
- 238000009295 crossflow filtration Methods 0.000 description 7
- 239000012535 impurity Substances 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 241000191291 Abies alba Species 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000000701 coagulant Substances 0.000 description 4
- 238000005345 coagulation Methods 0.000 description 4
- 230000015271 coagulation Effects 0.000 description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 4
- 239000010779 crude oil Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000009287 sand filtration Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 235000019476 oil-water mixture Nutrition 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/34—Treatment of water, waste water, or sewage with mechanical oscillations
- C02F1/36—Treatment of water, waste water, or sewage with mechanical oscillations ultrasonic vibrations
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
- C02F1/481—Treatment of water, waste water, or sewage with magnetic or electric fields using permanent magnets
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
- C02F2101/203—Iron or iron compound
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1268—Membrane bioreactor systems
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention provides an environment-friendly sewage treatment device. Relates to the field of oil field production environmental protection. Be equipped with the oil interceptor in the heat preservation casing, the sedimentation tank, the filtering ponds, super filtering pond and clean water basin, the oil interceptor is equipped with the inlet tube, electric heater, oil removal groove, be equipped with the swash plate in the sedimentation tank, the ultrasonic wave oscillator, be equipped with the magnetism filter screen in the filtering ponds, quartz sand filter bed and gravel bed course, be equipped with the MBR membrane in the ultrafiltration pond, MBR membrane outlet pipe line connects the import of self priming pump, inside self priming pump outlet pipe stretched into the clean water basin, there is the pipe connection plunger pump import clean water basin bottom, the outlet pipe is connected to the plunger. The invention has the following beneficial effects: according to the technical scheme, the environment-friendly sewage treatment device can complete the whole process of well washing operation, sewage treatment meets the requirements of well washing operation, no sewage is discharged, the cost of chemicals is low, auxiliary equipment such as a water tank truck and a cement truck is not required, the operation cost is reduced, and the well washing quality and the well washing speed are improved.
Description
The technical field is as follows:
the invention relates to the field of oil field production environmental protection, in particular to an environment-friendly sewage treatment device.
Background art:
at present, when a well washing operation is carried out in an oil field, a sewage tank truck is usually equipped, sewage discharged from a well mouth is stored and pulled back to a combined station for treatment, and meanwhile, a water tank truck is also equipped, clean water is fed back to a high-pressure plunger pump on a cement truck for pulling and conveying the clean water to a Christmas tree sleeve for circular well washing.
The invention content is as follows:
in order to solve the problems, the invention provides an environment-friendly sewage treatment device.
The technical scheme of the invention is as follows: an environment-friendly sewage treatment device comprises a heat-insulating shell, wherein an oil separation tank, a sedimentation tank, a filter tank, an ultra-filter tank and a clean water tank are arranged in the heat-insulating shell, a water inlet pipe is arranged on one side of the oil separation tank, an electric heater is arranged on the side surface of the oil separation tank and extends into the oil separation tank, an oil separation tank is arranged on the upper portion of the oil separation tank, a water through hole is formed in the bottom of the oil separation tank and is communicated with the sedimentation tank, an inclined plate is arranged in the sedimentation tank, a plurality of rows of ultrasonic vibrators are arranged on side wall plates on two sides of the sedimentation tank;
the top of the sedimentation tank is provided with a water passing weir communicated with the filtering tank, the filtering tank is internally provided with a magnetic filter screen, a quartz sand filter layer and a gravel cushion layer from top to bottom, and a wall plate at one side of the gravel cushion layer is provided with a plurality of water outlet holes communicated with the ultrafiltration tank;
an MBR membrane is arranged in the ultrafiltration tank, an MBR membrane water outlet pipeline is connected with a self-priming pump inlet, a self-priming pump outlet pipeline extends into the clean water tank, a pipeline at the bottom of the clean water tank is connected with a plunger pump inlet through a precision filter, and a plunger pump outlet is connected with a water outlet pipe;
and a generator set is arranged on the side surface of the heat-insulating frame.
The water inlet pipe, be equipped with fast flange between water inlet pipe and the oil interceptor, be equipped with the filter screen in the fast flange of opening.
The heat preservation frame, its inside still including the chemical tank, be equipped with the measuring pump on the chemical tank, in measuring pump import pipe connection chemical tank, measuring pump outlet pipe line extended to crossing water hole central part and is equipped with the horn mouth.
Clean water basin, filtering ponds and sedimentation tank, chemical tank and oil interceptor top all be equipped with the manhole, the filtering ponds bottom is equipped with the manhole, clean water basin, filtering ponds, sedimentation tank, oil interceptor and super filtering pond, the bottom all is equipped with the blowoff valve.
The height of the water passing weir is higher than the top of the oil receiving groove.
The top of the clean water tank is provided with a clean water pipeline.
The upper part of the heat preservation frame is provided with a searchlight.
The invention has the following beneficial effects: the oil separation tank is provided with a heating system to improve the temperature of the well washing liquid, the temperature of the well washing liquid can be improved, the underground pipeline can be more thoroughly cleaned through heat energy, the heating system is arranged on the oil separation tank, the liquid is helpful for heating the liquid discharged from a well mouth entering the oil separation tank, crude oil in the discharged liquid is easier to separate from sewage at high temperature and float upwards into an oil separation tank, the discharged water from the oil separation tank enters a sedimentation tank, impurities, suspended matters and the like in the sewage are settled at the bottom of the sedimentation tank under the action of an inclined plate and an ultrasonic vibrator of the sedimentation tank, the settled sewage enters a filter tank, a magnetic filter screen in the filter tank can adsorb iron filings and iron rust impurities which are not settled in the sewage on the magnetic filter screen, the sewage is filtered through a quartz sand filter layer, the sewage is subjected to cross flow filtration through an MBR (membrane) under the suction negative pressure of a self-priming pump, the effluent of the cross flow filtration can reach the index of the rein, reinjecting the oil-water mixture into a sleeve of the Christmas tree through a plunger pump to carry out circulating well-flushing operation;
under the condition that suspended matters in liquid discharged from a wellhead exceed the standard and cannot be directly subjected to precipitation filtration, adding a coagulant to perform coagulation reaction with sewage, and performing quartz sand filtration and MBR cross-flow filtration to reach the standard of reinjection water;
the design of the heat-insulating frame can ensure that the well washing operation can be carried out as usual in winter, and when the local formation pressure is low and the well mouth spitting liquid is not enough for circularly washing the well, clear water can be compensated in the clear water tank to supplement the circulating well washing liquid, so that the well washing operation is ensured to be completed smoothly;
according to the technical scheme, the environment-friendly sewage treatment device can complete the whole process of well washing operation, sewage treatment meets the requirements of well washing operation, no sewage is discharged, the cost of chemicals is low, auxiliary equipment such as a water tank truck and a cement truck is not required, the operation cost is reduced, and the well washing quality and the well washing speed are improved.
Description of the drawings:
fig. 1 is a schematic structural view of the present invention.
In the figure, 1-a heat preservation frame, 2-a blow-down valve, 3-a conical hopper, 4-an electric heater, 5-a water inlet pipe, 6-a quick-opening flange, 7-a filter screen, 8-an oil receiving groove, 9-a manhole, 10-a searchlight, 11-an inclined plate, 12-an ultrasonic vibrator, 13-a filter tank, 14-a magnetic filter screen, 15-a quartz sand filter layer, 16-a gravel cushion layer, 17-a water passing hole, 18-a horn mouth, 19-a metering pump, 20-a medicament box, 21-an MBR membrane, 22-a self-priming pump, 23-a precision filter, 24-a plunger pump, 25-a water outlet pipe, 26-a generator set, 27-a clean water tank, 28-a super filter tank, 29-an oil separation tank, 30-a sedimentation tank and 31-a, 32-water passing weir, 33-water outlet.
The specific implementation mode is as follows:
the invention will be further described with reference to the accompanying drawings in which:
as shown in fig. 1, an environment-friendly sewage treatment device comprises a heat preservation shell 1, wherein an oil separation tank 29, a sedimentation tank 30, a filtering tank 13, an ultra-filtration tank 28 and a clean water tank 27 are arranged in the heat preservation shell 1, a water inlet pipe 5 is arranged on one side of the oil separation tank 29, an electric heater 4 is arranged on the side surface of the oil separation tank 29 and extends into the oil separation tank 29, an oil separation tank 8 is arranged on the upper part of the oil separation tank 29, a water through hole 17 is formed in the bottom of the oil separation tank 29 and is communicated with the sedimentation tank 30, an inclined plate 11 is arranged in the sedimentation tank 30, a plurality of rows of ultrasonic vibrators 12 are arranged on two side wall plates of the sedimentation tank 30, and conical hoppers 3 are;
the top of the sedimentation tank 30 is provided with a water passing weir 32 communicated with the filtering tank 13, the filtering tank 13 is internally provided with a magnetic filter screen 14, a quartz sand filter layer 15 and a gravel cushion layer 16 from top to bottom, and a plurality of water outlet holes 33 communicated with the super filter 28 are formed in one side wall plate of the gravel cushion layer 16;
an MBR membrane 21 is arranged in the super filter 28, an outlet pipeline of the MBR membrane 21 is connected with an inlet of a self-priming pump 22, an outlet pipeline of the self-priming pump 22 extends into a clean water tank 27, a pipeline is arranged at the bottom of the clean water tank 27 and is connected with an inlet of a plunger pump 24 through a precision filter 23, the precision filter 23 is used as the last index guarantee of the reinjection water quality, and an outlet of the plunger pump 24 is connected with a water outlet pipe 25;
because the well washing operation is performed in the field, a fixed power supply can be utilized, and a generator set 26 is arranged on the side surface of the heat-insulating frame 1 to provide power energy for equipment.
Inlet tube 5, be equipped with fast flange 6 of opening between inlet tube 5 and the oil interceptor 29, be equipped with filter screen 7 in the fast flange 6 of opening, filter screen 7 can intercept bold grit, impurity in the influent water, fast flange 6 of opening can be convenient open so that take out clearance filter screen 7.
Thermal insulation frame 1, its inside still including the chemical tank 20, be equipped with measuring pump 19 on the chemical tank 20, 19 import pipe connections chemical tank 20 of measuring pump, 19 outlet pipe of measuring pump extends to water hole 17 central point and is equipped with horn mouth 18, it is too much at some flushing fluid suspended solid, when surpassing this set of device's processing requirement, can add the coagulant through the measuring pump in sewage, the horn mouth of measuring pump export can produce coagulation reaction with coagulant and sewage intensive mixing, the floc that produces after the coagulation reaction passes through the swash plate and deposits the sedimentation tank bottom and regularly discharges.
The height of the water-passing weir 32 is higher than that of the top of the oil-receiving tank 8, so that the liquid level of the oil separation tank 29 exceeds that of the top of the oil-receiving tank 8, and floating crude oil flows into the oil-receiving tank 8 and is discharged periodically.
The upper part of the heat-insulating frame 1 is provided with a searchlight 10, which is beneficial to the well-flushing operation at night.
The invention relates to a technical scheme designed based on the following working principle: the purpose of the well washing operation in the oil field is that clear water is injected into the casing, the clear water circulates from the bottom of the well to the oil pipe and comes out of the Christmas tree, impurities, rust, dirty oil and the like in the oil pipe are circularly washed, so that the pipeline of the underground oil casing is smooth, the pressure is released at the oil pipe of the Christmas tree, sewage in the oil pipe is released, the impurities, the rust, the dirty oil and the like in the sewage are cleaned, the reinjection standard is reached, and the clear water is injected into the casing to circularly wash the underground pipeline.
The invention designs an oil separation tank on the basis of the design principle, the oil separation tank is provided with a heating system to improve the temperature of the flushing fluid, the temperature of the flushing fluid can be improved, underground pipelines can be cleaned more thoroughly through heat energy, the oil separation tank is provided with the heating system which is helpful for heating the liquid discharged from a well mouth entering the oil separation tank, crude oil in the discharged liquid is easy to separate and float upwards into an oil separation tank compared with sewage at high temperature, the discharged water of the oil separation tank enters a sedimentation tank, impurities, suspended matters and the like in the sewage are settled at the bottom of the sedimentation tank under the action of an inclined plate and an ultrasonic vibrator of the sedimentation tank, the settled sewage enters a filter tank, a magnetic filter screen in the filter tank can adsorb iron scraps and rust impurities which are not settled in the sewage on the magnetic filter screen, the sewage is filtered through a quartz sand filter layer, and is subjected to cross flow filtration through an MBR membrane under the suction negative pressure of a self-priming pump, and the effluent of the cross flow filtration can reach the back-, and (3) periodically discharging the residual concentrated water (accounting for about 10%) after cross-flow filtration, enabling the water discharged from the self-priming pump to enter a clean water tank, and injecting the water back into a sleeve of the Christmas tree through a plunger pump to perform circulating well washing operation.
Under the condition that suspended matters in liquid discharged from a wellhead exceed the standard and cannot be directly precipitated and filtered, after coagulating agent is added to carry out coagulation reaction with sewage, quartz sand filtration and MBR cross-flow filtration are carried out to reach the standard of reinjection water
The design of the heat-insulating frame can ensure that the well-washing operation can be carried out as usual in winter, and when the local formation pressure is low and the well mouth spitting liquid is not enough for circularly washing the well, clear water can be compensated in the clear water tank to supplement the circulating well-washing liquid, so that the well-washing operation can be smoothly completed.
According to the technical scheme, the environment-friendly sewage treatment device can complete the whole process of well washing operation, sewage treatment meets the requirements of well washing operation, no sewage is discharged, the cost of chemicals is low, auxiliary equipment such as a water tank truck and a cement truck is not required, the operation cost is reduced, and the well washing quality and the well washing speed are improved.
Claims (5)
1. The utility model provides an environment-friendly sewage treatment plant, includes heat preservation frame (1), its characterized in that: an oil separation tank (29), a sedimentation tank (30), a filter tank (13), an ultrafiltration tank (28) and a clean water tank (27) are arranged in the heat preservation frame (1), a water inlet pipe (5) is arranged on one side of the oil separation tank (29), an electric heater (4) is arranged on the side face of the oil separation tank (29) and extends into the oil separation tank (29), an oil separation groove (8) is arranged on the upper portion of the oil separation tank (29), a water through hole (17) is formed in the bottom of the oil separation tank (29) and is communicated with the sedimentation tank (30), an inclined plate (11) is arranged in the sedimentation tank (30), a plurality of rows of ultrasonic vibrators (12) are arranged on two side wall plates of the sedimentation tank (30), and conical hoppers (3) are arranged at the bottoms of the sedimentation tank (30) and the;
the top of the sedimentation tank (30) is provided with a water passing weir (32) communicated with the filtering tank (13), the filtering tank (13) is internally provided with a magnetic filter screen (14), a quartz sand filter layer (15) and a gravel cushion layer (16) from top to bottom, and a plurality of water outlet holes (33) communicated with the ultrafiltration tank (28) are formed in a wall plate at one side of the gravel cushion layer (16);
an MBR membrane (21) is arranged in the super filter tank (28), a water outlet pipeline of the MBR membrane (21) is connected with an inlet of a self-priming pump (22), an outlet pipeline of the self-priming pump (22) extends into a clean water tank (27), a pipeline is arranged at the bottom of the clean water tank (27) and is connected with an inlet of a plunger pump (24) through a precision filter (23), and an outlet of the plunger pump (24) is connected with a water outlet pipe (25);
a generator set (26) is arranged on the side surface of the heat-insulating frame (1);
a quick-opening flange (6) is arranged between the water inlet pipe (5) and the oil separation tank (29), and a filter screen (7) is arranged in the quick-opening flange (6);
heat preservation frame (1), its inside still including chemical tank (20), be equipped with measuring pump (19) on chemical tank (20), in measuring pump (19) import pipe connection chemical tank (20), measuring pump (19) export pipeline extends to water hole (17) central part and is equipped with horn mouth (18).
2. The environment-friendly sewage treatment plant according to claim 1, wherein: clean water basin (27), sedimentation tank (30), chemical tank (20) and oil interceptor (29) top all be equipped with manhole (9), filtering ponds (13) bottom is equipped with manhole (9), clean water basin (27), filtering ponds (13), sedimentation tank (30), oil interceptor (29) and ultrafiltration pond (28), the bottom all is equipped with blowoff valve (2).
3. The environment-friendly sewage treatment plant according to claim 1, wherein: the height of the water passing weir (32) is higher than the top of the oil separating groove (8).
4. The environment-friendly sewage treatment plant according to claim 1, wherein: the top of the clean water tank (27) is provided with a clean water pipeline (31).
5. The environment-friendly sewage treatment plant according to claim 1, wherein: the upper part of the heat preservation frame (1) is provided with a searchlight (10).
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CN110818182B true CN110818182B (en) | 2020-12-22 |
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CN111689650A (en) * | 2020-06-22 | 2020-09-22 | 陈昌超 | Sewage treatment device with ultrasonic self-cleaning structure |
CN113464072B (en) * | 2021-07-13 | 2023-03-24 | 濮阳市科特石油工程技术有限公司 | Multifunctional oil well environment-friendly paraffin removal vehicle |
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CN201678555U (en) * | 2010-02-25 | 2010-12-22 | 张碧璇 | Restaurant oily wastewater processing device |
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Effective date of registration: 20210115 Address after: 225202 Shuanggou Xinhe Industrial Park, Xiannu Town, Jiangdu District, Yangzhou City, Jiangsu Province Patentee after: JIANGSU TIANHE WATER EQUIPMENT Co.,Ltd. Address before: Room 103, unit 2, building 8, Tangren central community, Ranghulu District, Daqing City, Heilongjiang Province, 163000 Patentee before: Zhang Jun |