CN114735868A - Comprehensive treatment device for petrochemical wastewater - Google Patents

Comprehensive treatment device for petrochemical wastewater Download PDF

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Publication number
CN114735868A
CN114735868A CN202210417173.8A CN202210417173A CN114735868A CN 114735868 A CN114735868 A CN 114735868A CN 202210417173 A CN202210417173 A CN 202210417173A CN 114735868 A CN114735868 A CN 114735868A
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CN
China
Prior art keywords
water
oil
wastewater
demulsification
ultrasonic demulsification
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Pending
Application number
CN202210417173.8A
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Chinese (zh)
Inventor
刘繄
庄永泰
职冰洁
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Wuhan University of Technology WUT
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Wuhan University of Technology WUT
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Publication date
Application filed by Wuhan University of Technology WUT filed Critical Wuhan University of Technology WUT
Priority to CN202210417173.8A priority Critical patent/CN114735868A/en
Publication of CN114735868A publication Critical patent/CN114735868A/en
Pending legal-status Critical Current

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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
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • 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
    • C02F2101/00—Nature of the contaminant
    • C02F2101/30—Organic compounds
    • C02F2101/32—Hydrocarbons, e.g. oil
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
    • C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
    • C02F2103/365—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds from petrochemical industry (e.g. refineries)
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

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  • 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)
  • Physical Water Treatments (AREA)

Abstract

The application discloses petrochemical industry waste water integrated processing device. Among this technical scheme, through studying the common cooperation of ultrasonic wave demulsification subassembly and rotatory pipe collection subassembly, enable pending waste water like this and carry out ultrasonic demulsification through the ultrasonic wave demulsification subassembly, the built-in rotatory filler that has adsorbing material of rethread is adsorbed with rotatory mode, the oil-water separation effect has been improved to let and guaranteed to make its time, the space that can save petrochemical industry waste water treatment to the highest degree, improve the pollutant clearance, reduce petrochemical sewage treatment's cost.

Description

Comprehensive treatment device for petrochemical wastewater
Technical Field
The application relates to the technical field of wastewater treatment, in particular to a petrochemical wastewater comprehensive treatment device.
Background
The petrochemical industry is an important component of national economy in China, and is an industry for synthesizing various products by reprocessing the rest after petroleum exploitation, storage and transportation. While meeting the increasingly abundant demands of people, petrochemical wastewater is also brought by petrochemical industry, which is composed of production wastewater, cooling wastewater and other wastewater.
The water demand and the wastewater discharge amount of the petrochemical industry are huge, and several tons or even dozens of tons of petrochemical wastewater need to be discharged every ton of chemical products. In recent years, the increasing value of petrochemical industry and the processing amount of crude oil are improved year by year, the benefits of oil refining industry and subsequent chemical industry are gradually increased, the total output of chemical products in China is increased by 3.6% in 2020 and is positioned in the front of the world, and the petrochemical sewage amount is greatly increased. Meanwhile, due to different process flows of the petrochemical industry, the phenomena of numerous mixed components, different contents and different levels in the petrochemical wastewater are caused, so that a series of pollutants such as complex organic components, sulfides, ammonia nitrogen compounds and the like in the wastewater are difficult to separate from water, and the wastewater treatment cost is high.
In the related technology, the physicochemical treatment method for the sulfur-containing sewage of petrochemical wastewater mainly comprises a precipitation method, an alkali absorption method, an oxidation method, a steam stripping method and the like, wherein the steam stripping method and the oxidation method are most widely applied to the treatment of the petrochemical wastewater, and the sulfur removal rate of the two physicochemical treatment methods is 90%. In addition to the traditional physical and chemical treatment methods, some novel physical and chemical methods including catalytic wet oxidation, wet air oxidation and supercritical water oxidation are studied. However, these physical and chemical treatment methods have high treatment costs and high requirements for equipment.
Disclosure of Invention
In view of this, the application provides petrochemical industry effluent integrated processing apparatus, can save petrochemical industry effluent treatment's time, space to the utmost extent, improves the pollutant removal rate, reduces petrochemical industry sewage treatment's cost.
The application provides a petrochemical wastewater comprehensive treatment device, which comprises an oil-water separation mechanism and a water treatment mechanism, wherein the oil-water separation mechanism comprises an ultrasonic demulsification component and a rotary pipe collection component which are sequentially arranged according to the flow direction of wastewater;
the ultrasonic demulsification assembly is used for performing ultrasonic demulsification treatment on wastewater, and the rotary pipe collection assembly comprises a spiral-flow pipe and a solid particle collection piece, wherein the spiral-flow pipe and the solid particle collection piece are sequentially arranged in the spiral-flow pipe according to the flow direction of the wastewater.
Optionally, the ultrasonic demulsification assembly comprises an ultrasonic demulsification chamber for performing ultrasonic demulsification and a wavy partition plate arranged in the ultrasonic demulsification chamber.
Optionally, a perforated baffle is configured within the ultrasonic demulsification chamber.
Optionally, the adsorbent material is activated carbon.
Optionally, the water treatment mechanism comprises a rotary filler assembly and a liquid level and water quality component detection assembly which are arranged in sequence according to the flow direction of the wastewater.
Optionally, the water treatment mechanism further comprises an intelligent control module for collecting wastewater to be treated to perform oil-water ratio and controlling the ultrasonic demulsification assembly according to the oil-water ratio.
Optionally, a filter screen is attached outside the filler arranged in the rotary filler component.
Optionally, the filler built in the rotating filler assembly is a mixture of magnesium hydroxide and phosphoric acid.
Above provide petrochemical industry waste water integrated processing device, collect the common cooperation of subassembly through studying ultrasonic wave demulsification subassembly and rotatory pipe, enable pending waste water like this and carry out ultrasonic demulsification through ultrasonic wave demulsification subassembly, the built-in rotatory filler that rotates that has adsorbing material of rethread is adsorbed with rotatory mode, the oil-water separation effect has been improved, thereby let and guaranteed to make its time, the space that can save petrochemical industry waste water treatment to the highest degree, improve the pollutant removal rate, reduce petrochemical industry sewage treatment's cost.
Drawings
The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.
FIG. 1 is a schematic diagram illustrating an overall structure of an integrated petrochemical wastewater treatment apparatus according to an embodiment of the present disclosure.
Fig. 2 is a structural diagram of an oil-water separating mechanism according to an embodiment of the present application.
FIG. 3 is a block diagram of a cyclone tube collection assembly according to an embodiment of the present application.
FIG. 4 is a block diagram of a rotary packing assembly according to an embodiment of the present application.
FIG. 5 is a structural diagram of a liquid level and water quality component detecting assembly according to an embodiment of the present application.
Wherein the elements in the figures are identified as follows:
20-an oil-water separation mechanism; 20 a-an oil layer discharge conduit; 20 b-water layer discharge line; 21-ultrasonic demulsification component; 211-ultrasonic demulsification chamber; 212-a corrugated septum; 213-baffle with holes; 22-swirl tube collection assembly; 22 a-reservoir outlet; 22 b-outlet of aqueous layer; 221-swirl tubes; 222-a solid particle collection member;
40-a water treatment mechanism; 41-rotating the packing assembly; 41 a-gas inlet; 41 b-liquid inlet; 42-liquid level and water quality component detection assembly; 43-intelligent control module;
50-water pump.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It should be apparent that the described embodiments are only a few embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or as implying that the number of indicated technical features is indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
Referring to fig. 1 to 5, the apparatus for the comprehensive treatment of petrochemical wastewater provided by the embodiments of the present application mainly comprises an oil-water separation mechanism 20 and a water treatment mechanism 40. The oil-water separation mechanism 20 comprises an ultrasonic demulsification component 21 and a cyclone pipe 221 collection component 22; the water treatment mechanism 40 comprises a rotary filler assembly 41, a liquid level and water quality component detection assembly 42 and an intelligent control module 43.
The ultrasonic demulsification assembly 21 releases ultrasonic waves from an ultrasonic generation device at the lower part of the temporary storage tank for the petrochemical wastewater. Under the condition of 50 ℃, the ultrasonic wave can freely spread in different media such as solid, liquid and gas and the like and reach an emulsion layer of petrochemical wastewater. Ultrasonic wave can produce cavitation in waste water, produces in certain period or the unstable tiny bubble of expansion or contraction state, and the tiny bubble that breaks during this period takes the high hot high pressure environment in the twinkling of an eye to the emulsifying layer that water and oil mix, and this makes the equilibrium of emulsifying layer broken, and water and oil produce relative flow, constantly establishes the in-process water oil separation of new equilibrium, reaches the processing target of breaking emulsion to petrochemical industry waste water.
The wavy partition plate 212 is arranged in the ultrasonic demulsification chamber 211, and the baffle plate 213 with the hole is arranged at the tail end of the ultrasonic demulsification chamber 211, so that the flow speed of petrochemical wastewater in the chamber is reduced by the two plates, the ultrasonic demulsification effect is improved, and oil and water are fully separated.
The cyclone tube 221 collection assembly 22 comprises a cyclone tube 221 and a solid particle collection member 222, and petrochemical wastewater passing through the opening of the cyclone tube 221 enters the module in the tangential direction at the inlet along the side wall of the cyclone. The cyclone pipe 221 moves around its axis, so that the wastewater rotates from top to bottom in the pipe. The density of the small solid particles in the wastewater is higher than that of the liquid, so that the centrifugal force exerted on the small solid particles is higher than that exerted on the liquid with the same volume, the small solid particles and the water phase are attached to the pipe wall in a separated mode, and the small solid particles spirally move downwards along the pipe wall due to the fact that the cyclone pipe 221 has a certain taper, and are concentrated at the opening of one section of the bottom end of the cyclone pipe 221 and connected with a cylindrical solid particle collecting piece 222 with a built-in adsorbing material. The adsorbent material is activated carbon, or other form.
The petrochemical wastewater further separates oil and water in the rotational flow pipe 221 due to centrifugal force generated by rotation, a stable oil-water envelope surface is formed by stable flow and pressure difference ratio, so that a stable oil-water separation effect is obtained, the water layer is higher in density and larger in centrifugal force, so that the petrochemical wastewater can be separated from the oil layer to move towards the pipe wall, the water layer reaching the position near the pipe wall receives continuous liquid pushing, moves forwards along the pipe wall, and is discharged from the bottom flow port reaching the position near the bottom flow port. The oil layer moves reversely to the top flow port and flows out through the pipeline.
The small solid particles leave the cyclone tube 221 and are then attracted by the adsorption device and adsorbed thereon, the oil layer flows out through the top end pipe of the cyclone, and the petrochemical wastewater from which the small solid particles and the oil layer are removed is transported out of the integrated oil-water separation mechanism 20.
The rotary packing assembly 41 comprises a rotary part and a packing part, wherein the rotary part comprises a rotary shaft and a water jet, and when sewage subjected to oil-water separation enters through a liquid inlet 41b, air is introduced from a gas inlet 41a to react with sulfur-containing sewage to generate S2O3 2-、SO4 2-Ions. The suspension passes through the rotating module by centrifugal force during rotationThe overfill is thrown to the outer wall of the outermost side, the liquid is fully cut and dispersed in the process, and the specific surface area is extremely expanded, so that the gas is more fully contacted with the liquid surface, and the reaction is rapid. The liquid finally converges at the bottom of the rotary module, flows out through a water outlet (not shown in the figure) and flows into a sewage pool installed at the bottom of the platform.
The filler part is composed of solid block-shaped filler, a filter screen is attached to the outside of the filler part, and a certain space is formed between the filler part and the outer wall of the filler part. When the rotary module operates, the solid fast-shaped filler does not rotate along with the rotary module. The solid block filler is a mixture of magnesium hydroxide and phosphoric acid, which is effective in removing ammonia nitrogen compounds from petrochemical wastewater. At the same time, S produced after air oxidation of the sulfur-containing wastewater2O3 2-、SO4 2-Ions can be combined with magnesium ions in the filler to form precipitates, the precipitates are attached to the solid filler (the solid filler is replaced periodically), and due to the existence of chemical balance, the balance is carried out rightwards, so that the speed of oxidizing sulfides in the wastewater by air is increased, the reaction speed is increased, the reaction is more complete, the ammonia nitrogen compounds are removed, the sulfides are more thorough, and the mutual promotion effect is achieved.
The liquid level and water quality component detection assembly 42 can monitor the content of ammonia nitrogen compounds and sulfides in the water body in real time.
The intelligent control module 43 adopts an STM32 single chip microcomputer to identify the oil-water ratio detected by the oil-water detector, so as to complete the operation. And the singlechip is connected with the ultrasonic generator and the water-oil detector through a USB interface. When the water-oil detector works, different petrochemical wastewater oil-water ratios are transmitted to the ultrasonic generator by different pulses, and the ultrasonic generator adjusts the working power and the frequency of the generated ultrasonic waves in real time through the received pulses.
The application method comprises the following steps:
this application will through the layering processing that stews and filter the petrochemical industry waste water of detaching great solid particle thing and let in oil-water separation mechanism 20, through its built-in wave baffle 212 and under the foraminiferous baffle 213 separation at ultrasonic wave demulsification room 211 end, petrochemical industry waste water velocity of flow descends, and ultrasonic wave demulsification room 211 sends the ultrasonic wave of specific frequency and demulsifies petrochemical industry waste water, makes profit preliminary separation. After the mixed wastewater containing organic matters in the ultrasonic demulsification chamber 211 is subjected to ultrasonic demulsification treatment, the mixed wastewater enters the cyclone pipe 221 which rotates continuously through the small holes in the baffle plate 213 with holes, solid matters in the wastewater are gradually gathered on the pipe wall and reach the small holes which are regularly arranged on the pipeline at the other end, and the mixed wastewater is adsorbed on the solid particle collecting piece 222 after leaving the small holes.
Petrochemical industry waste water makes the oil-water further separation owing to rotatory centrifugal force that produces in whirl pipe 221, and stable flow and pressure differential ratio form stable oil-water envelope surface to obtain stable oil-water separation effect, the water layer is great because density, and the centrifugal force that receives is great, consequently can break away from the oil reservoir and move to the pipe wall, reaches the water layer near the pipe wall and receives continuous liquid and promote, moves along the pipe wall forward, is finally discharged by oil reservoir outlet 22a and is collected through oil reservoir discharge pipe 20 a. While the oil layer moves in reverse direction to the top flow port and flows out through the water layer outlet 22 b. The water produced by the oil-water separation flows through the oil layer discharge pipe 20b from the water layer outlet 22b, and is pressurized by the water pump 50 and enters the water treatment mechanism 40 from the upper opening.
When air is introduced, the rotor rotates in the device, so that the gas filler is subjected to certain reaction, ammonia nitrogen compounds and sulfides in the waste liquid are removed, and the wastewater treatment is thorough.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.

Claims (8)

1. The comprehensive petrochemical wastewater treatment device is characterized by comprising an oil-water separation mechanism and a water treatment mechanism, wherein the oil-water separation mechanism comprises an ultrasonic demulsification component and a cyclone tube collection component which are sequentially arranged according to the flow direction of wastewater;
the ultrasonic demulsification assembly is used for performing ultrasonic demulsification treatment on wastewater, and the cyclone tube collection assembly comprises cyclone tubes and a solid particle collection piece, wherein the cyclone tubes are sequentially arranged according to the flow direction of the wastewater, and the solid particle collection piece is internally provided with adsorption materials.
2. The integrated petrochemical wastewater treatment apparatus according to claim 1, wherein the ultrasonic demulsification assembly comprises an ultrasonic demulsification chamber for performing ultrasonic demulsification and a corrugated partition plate disposed in the ultrasonic demulsification chamber.
3. The integrated petrochemical wastewater treatment apparatus according to claim 2, wherein the ultrasonic demulsification chamber is provided with a baffle plate with holes.
4. The integrated petrochemical wastewater treatment apparatus according to claim 1, wherein the adsorbent is activated carbon.
5. The integrated petrochemical wastewater treatment device according to claim 1, wherein the water treatment mechanism comprises a rotary filler component and a liquid level and water quality component detection component which are arranged in sequence according to the wastewater flowing direction.
6. The comprehensive petrochemical wastewater treatment device according to claim 5, wherein the water treatment mechanism further comprises an intelligent control module for collecting wastewater to be treated to perform oil-water ratio and controlling the ultrasonic demulsification assembly according to the oil-water ratio.
7. The integrated petrochemical wastewater treatment device according to claim 5, wherein a filter screen is attached to the filler arranged in the rotary filler component.
8. The integrated petrochemical wastewater treatment device according to claim 5, wherein the filler arranged in the rotary filler assembly is a mixture of magnesium hydroxide and phosphoric acid.
CN202210417173.8A 2022-04-20 2022-04-20 Comprehensive treatment device for petrochemical wastewater Pending CN114735868A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210417173.8A CN114735868A (en) 2022-04-20 2022-04-20 Comprehensive treatment device for petrochemical wastewater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210417173.8A CN114735868A (en) 2022-04-20 2022-04-20 Comprehensive treatment device for petrochemical wastewater

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CN114735868A true CN114735868A (en) 2022-07-12

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104591420A (en) * 2015-01-13 2015-05-06 上海安赐机械设备有限公司 Sulfur-containing oily sewage treatment device and treatment process used in oil-refining industry
US20160145133A1 (en) * 2014-11-20 2016-05-26 Columbia Water Holdings, Inc. Method and apparatus for removing unwanted dissolved chemicals from liquids
CN108423897A (en) * 2018-03-20 2018-08-21 中国科学院过程工程研究所 A kind of oiliness sewage treatment equipment and technique
CN108531225A (en) * 2018-05-09 2018-09-14 广州华科环保工程有限公司 A kind of ceramic industry is from water gas deep desulfuration degreasing unit and technique
CN110104728A (en) * 2019-05-31 2019-08-09 青岛贝索科技有限公司 A kind of method and device of ultrasonic wave sour water processing sump oil

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160145133A1 (en) * 2014-11-20 2016-05-26 Columbia Water Holdings, Inc. Method and apparatus for removing unwanted dissolved chemicals from liquids
CN104591420A (en) * 2015-01-13 2015-05-06 上海安赐机械设备有限公司 Sulfur-containing oily sewage treatment device and treatment process used in oil-refining industry
CN108423897A (en) * 2018-03-20 2018-08-21 中国科学院过程工程研究所 A kind of oiliness sewage treatment equipment and technique
CN108531225A (en) * 2018-05-09 2018-09-14 广州华科环保工程有限公司 A kind of ceramic industry is from water gas deep desulfuration degreasing unit and technique
CN110104728A (en) * 2019-05-31 2019-08-09 青岛贝索科技有限公司 A kind of method and device of ultrasonic wave sour water processing sump oil

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Application publication date: 20220712