CN110590088A - Skid-mounted oil-containing sludge continuous treatment system and treatment method - Google Patents

Skid-mounted oil-containing sludge continuous treatment system and treatment method Download PDF

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Publication number
CN110590088A
CN110590088A CN201910858936.0A CN201910858936A CN110590088A CN 110590088 A CN110590088 A CN 110590088A CN 201910858936 A CN201910858936 A CN 201910858936A CN 110590088 A CN110590088 A CN 110590088A
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China
Prior art keywords
oil
sludge
water
skid
conveying
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CN201910858936.0A
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Chinese (zh)
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中原康
乔海鸣
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Chaoyang Shunde Environmental Protection Technology Co.,Ltd.
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中原康
乔海鸣
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Priority to CN201910858936.0A priority Critical patent/CN110590088A/en
Publication of CN110590088A publication Critical patent/CN110590088A/en
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/02Biological treatment
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/12Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/121Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/12Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/121Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
    • C02F11/127Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering by centrifugation
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G1/00Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
    • C10G1/002Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal in combination with oil conversion- or refining processes
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/30Organic compounds
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G2300/00Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
    • C10G2300/10Feedstock materials
    • C10G2300/1003Waste materials

Abstract

The invention discloses a skid-mounted oil-containing sludge continuous treatment system, which belongs to the technical field of oil sludge treatment equipment and comprises an oil sludge feeding pump, a biological conditioning system, a feeding system, a pretreatment system and an oil-water-slag separation system which are sequentially connected; the oil-water-slag separation system is respectively connected with the water circulation system, the oil product purification system and the discharging system; and the system also comprises a power generation system for supplying power to each system. The system adopts a modular design, has high safety and compact structure, saves the field space, is convenient to transport, and reduces the field workload and the installation time.

Description

Skid-mounted oil-containing sludge continuous treatment system and treatment method
Technical Field
The invention relates to the technical field of oil sludge treatment equipment, in particular to a skid-mounted oil-containing sludge continuous treatment system.
Background
The oily sludge is a mixture of crude oil or finished oil, sludge and water polluted by other organic matters and is a concomitant product generated in the processes of petroleum exploitation, oily sewage treatment, refining, production and processing. The oil-containing sludge is divided into three types of oil field sludge, storage and transportation sludge and refinery sludge according to different sources, the oil-containing sludge has large volume, if the oil-containing sludge is directly discharged without being treated, a large amount of cultivated land is occupied, the surrounding soil, water and air are polluted, malodorous gas is generated, and the surrounding soil, water and air are polluted.
At present, the method for treating the oily sludge at home and abroad comprises the following steps: the incineration method, the biological treatment method, the thermal washing method, the solvent extraction method, the thermal cracking method and the like have respective disadvantages although the treatment modes are various, and the incineration method has high energy consumption and can generate secondary pollution; the biological treatment method can only treat oil sludge with low oil content and has long period; the oily sludge treated by the hot washing method is not thorough, and the treated residue still needs to be subjected to secondary treatment; most of organic solvents used in the solvent extraction method are toxic and volatile, and the treatment is not thorough; compared with incineration, the thermal cracking method has low energy consumption, but still has high energy consumption, the generated thermal cracking oil has complex components, cannot be reasonably utilized, is easy to cause secondary pollution, and the oily sludge after simple dehydration needs to be dried. Due to various defects, the oily sludge cannot really achieve harmless and recycling treatment. In addition, the existing treatment equipment has the defects of large volume and difficult movement, and particularly when emergency fixed-point decontamination is required, the treatment equipment cannot arrive at the site at the first time, so that the optimal time for decontamination is influenced.
Therefore, a new improvement to solve the above problems is urgently needed.
Disclosure of Invention
The skid-mounted oil-containing sludge continuous treatment system is high in safety, compact in structure, convenient to transport, capable of saving field space, reducing field workload and installation time and saving construction cost.
The above purpose is realized by the following technical scheme:
a skid-mounted oily sludge continuous treatment system comprises an oil sludge feeding pump, a biological conditioning system, a feeding system, a pretreatment system and an oil-water-slag separation system which are sequentially connected; the oil-water-slag separation system is respectively connected with the water circulation system, the oil product purification system and the discharging system; and the system also comprises a power generation system for supplying power to each system.
Preferably, the biological conditioning system is a heating and heat-preserving mixing tank, the feeding system comprises a movable vibrating screen and an oil sludge conveying hose pump which are connected with each other, the oil sludge feeding pump is connected with the heating and heat-preserving mixing tank, the heating and heat-preserving mixing tank is connected with the movable vibrating screen, and oil sludge after biological modulation is conveyed to the pretreatment system through the oil sludge conveying hose pump.
Preferably, the pretreatment system is an ultrasonic homogenizer, and the ultrasonic homogenizer is connected with a feed inlet of the oil-sludge separation system.
Preferably, the oil-sludge separation system is an oil-sludge separator and comprises a feed inlet, a water outlet, an oil outlet and a slag outlet; the water outlet is connected with the water circulation system, the oil outlet is connected with the oil product purification system, and the slag outlet is connected with the discharging system.
Preferably, the water circulation system is a water tank, and the water tank is connected with a sewage treatment system; the oil product purification system is a centrifugal oil purifier, and the centrifugal oil purifier is connected with the oil storage tank; the discharge system comprises a centrifuge and a screw conveyor which are connected with each other, and the slag outlet is connected with the centrifuge and discharged through the screw conveyor.
Preferably, the sewage treatment system is a conventional sewage treatment device.
Preferably, the power generation system is a portable diesel generator or a gasoline generator.
Preferably, the oil sludge feed pump, the biological conditioning system, the feed system, the pretreatment system, the oil-water-residue separation system, the water circulation system, the oil purification system, the discharge system and the power generation system are skid-mounted.
A treatment method of a skid-mounted oily sludge continuous treatment system is characterized by comprising the following steps: the method comprises the following steps:
(1) starting a power generation system, conveying the collected water-containing oil sludge to be treated to a biological modulation system through an oil sludge feeding pump, adding a proper amount of biological modulation agent into the biological modulation system, mixing and stirring for 0.4-1 h, and conveying the mixture to a feeding system for impurity removal to obtain water-containing oil sludge after impurity removal;
(2) conveying the water-containing oil sludge subjected to impurity removal in the step (1) to a pretreatment system for demulsification and homogenization treatment to obtain milky oil sludge;
(3) conveying the milky oil sludge obtained in the step (2) to an oil-water-residue separation system, wherein the oil-water-residue separation system separates the milky oil sludge into oil, water and cement-containing residue;
(4) conveying the water obtained in the step (3) to a sewage treatment system through a water circulation system for purification treatment and collection or discharge; purifying the oil obtained in the step (3) by an oil product purification system, and storing the oil by an oil storage tank; and (4) separating the cement-containing slag obtained in the step (3) again through a discharging system and then discharging.
Preferably, in the step (1), if the oil sludge to be treated is dry oil sludge, the step includes: and starting a power generation system, conveying the collected dry oil sludge to be treated to a biological modulation system through an oil sludge feeding pump, adding a proper amount of water into the biological modulation system, finally adding a proper amount of biological modulation agent into the biological modulation system, mixing and stirring for 0.4-1 h, and conveying the mixture to a feeding system for impurity removal to obtain the water-containing oil sludge after impurity removal.
Advantageous effects
The skid-mounted oily sludge continuous treatment system manufactured by the technical scheme of the invention adopts a modular design, has high safety and compact structure, saves field space, is convenient to transport, reduces field workload and installation time, and saves construction cost. The system is used for treating the oily sludge, the oily sludge can be subjected to recycling and harmless treatment at a pollution production place, secondary pollution caused by transportation vehicles in the transportation process is avoided, and the system is suitable for on-site treatment of oil-polluted soil generated in an emergency and is also suitable for recycling and harmless treatment of the oily sludge, the ground oil sludge and the oil-based mud.
Drawings
FIG. 1 is a schematic structural diagram of a skid-mounted oily sludge continuous treatment system.
Detailed Description
It should be noted that the description and sequence of descriptions of specific structures in this section are merely illustrative of specific embodiments and should not be construed as limiting the scope of the invention in any way. Furthermore, the embodiments in this section and the features in the embodiments may be combined with each other without conflict.
The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1, a skid-mounted oily sludge continuous treatment system comprises an oil sludge feeding pump 2, a biological conditioning system 3, a feeding system 4, a pretreatment system 5 and an oil-water-residue separation system 6 which are connected in sequence; the oil-water residue separation system 6 is respectively connected with a water circulation system 7, an oil product purification system 8 and a discharge system 9; a power generation system 1 for supplying power to the respective systems is also included. The oil sludge feeding pump 2, the biological conditioning system 3, the feeding system 4, the pretreatment system 5, the oil-water-slag separation system 6, the water circulation system 7, the oil purification system 9, the discharging system 11 and the power generation system 1 are skid-mounted.
Specifically, the system adopts a modular design, and orderly connects the treatment systems, so that the system is high in safety, compact in structure, convenient to transport, capable of saving field space, reducing field workload and installation time, and saving construction cost.
The biological conditioning system 3 is a heating and heat-preserving mixing tank 3-1, and has the characteristics of large heating area, high thermal efficiency, uniform heating, short boiling time of the material, easy control of heating temperature and the like; the feeding system 4 comprises a movable vibrating screen 4-1 and an oil sludge conveying hose pump 4-2 which are connected with each other, the oil sludge feeding pump 2 is connected with the heating and heat-preserving mixing tank 3-1, the heating and heat-preserving mixing tank 3-1 is connected with the movable vibrating screen 4-1, and the biologically-modulated oil sludge is conveyed to the pretreatment system 5 through the oil sludge conveying hose pump 4-2; the pretreatment system 5 is an ultrasonic homogenizer and is used for uniformly mixing the mixture with oil sludge after biological tempering and then conveying the mixture to the oil sludge separation system 6. The oil-sludge separation system is an oil-sludge separator 6-1 (mainly used for carrying out solid-liquid separation on an oil-sludge mixture), and comprises a feed inlet 6-12, a water outlet 6-11, an oil outlet 6-13 and a slag outlet 6-14; the water outlets 6-13 are connected with the water circulation system 7, the oil outlets 6-13 are connected with the oil product purification system 9, and the slag outlets 6-14 are connected with the discharging system 11. The water circulation system 7 in the system is a water tank 7-1, and the water tank 7-1 is connected with a sewage treatment system 8 (the sewage treatment system 8 is conventional sewage treatment equipment 8-1 used for purifying water from the water tank 7-1 to obtain water which does not pollute the environment and can be recycled or directly discharged); the oil purification system 9 is a centrifugal oil purifier 9-1 (the centrifugal oil purifier 9-1 is used for filtering solid impurities and moisture in oil so as to improve the performance of the oil and obtain oil with high purity), and the centrifugal oil purifier 9-1 is connected with an oil storage tank 10 and is used for recovering the obtained oil and performing secondary utilization. The discharge system 11 comprises a centrifuge 11-1 (mainly used for separating solid particles from liquid in suspension, in the system, it can also be used for discharging liquid in the wet solid to obtain dry mud) and a screw conveyor 11-2 (a machine for driving a screw to rotate by a motor to push materials to achieve the purpose of conveying, which can horizontally, obliquely or vertically convey and has the advantages of simple structure, small cross-sectional area, good sealing property, convenient operation, easy maintenance, convenient closed transportation and the like), wherein the slag outlet 6-14 is connected with the centrifuge 11-1, and the mud after solid-liquid separation is discharged through the screw conveyor 11-2.
As the system adopts a skid-mounted type, all equipment systems adopt a modularized layout, and in order to facilitate transportation and realize rapid emergency response, the power generation system 1 adopts a diesel generator 1-1 or a gasoline generator 1-1.
The treatment method of the skid-mounted oily sludge continuous treatment system can realize the treatment of dry oil sludge or aqueous oil sludge, and comprises the following treatment steps:
(1) starting a power generation system 1, conveying the collected water-containing oil sludge to be treated to a biological modulation system 3 through an oil sludge feeding pump 2, adding a proper amount of biological modulation agent into the biological modulation system 3, mixing and stirring for 0.4-1 h, and conveying to a feeding system 4 for impurity removal to obtain water-containing oil sludge after impurity removal;
(2) conveying the water-containing oil sludge subjected to impurity removal in the step (1) to a pretreatment system 5 for demulsification and homogenization treatment to obtain milky oil sludge;
(3) conveying the milky oil sludge obtained in the step (2) to an oil-water-residue separation system 6, wherein the oil-water-residue separation system 6 separates the milky oil sludge into oil, water and cement-containing residue;
(4) conveying the water obtained in the step (3) to a sewage treatment system 8 through a water circulation system 7 for purification treatment and collection or discharge; purifying the oil obtained in the step (3) by an oil product purification system 9, and storing the oil by an oil storage tank 10; and (4) separating the cement-containing slag obtained in the step (3) again through a discharging system 11 and then discharging.
The steps are as follows: starting a generator 1-1, conveying the collected water-containing oil sludge to be treated to a heating and heat-preserving mixing tank 3-1 through an oil sludge feeding pump 2, adding a proper amount of biological modulator (the biological modulator is used for better decomposing the water-containing oil sludge) into the heating and heat-preserving mixing tank 3-1, mixing and stirring for 0.4-1 h, conveying the mixture to a movable vibrating screen 4-1, and removing larger impurities in the oil sludge through the movable vibrating screen 4-1 to obtain water-containing oil sludge after impurity removal; the oil sludge is conveyed to an ultrasonic homogenizer 5-1 through an oil sludge conveying hose pump 4-2, and further demulsification and homogenization treatment are carried out on the oil sludge, so that milky oil sludge can be obtained; finally, the milky oil sludge is separated into oil, water and cement-containing slag through the oil-water-slag separation system 6; water is conveyed to the sewage treatment equipment 8-1 through the water tank for purification treatment and collection or discharge; purifying the oil by a centrifugal oil purifier 9-1 and storing the oil by an oil storage tank 10; the sludge containing cement is separated again by the centrifuge 11-1 and discharged by the screw conveyor 11-2.
If the oil sludge to be treated is dry oil sludge, starting an early-stage power generation system in the steps, conveying the collected dry oil sludge to be treated to a biological modulation system through an oil sludge feeding pump, adding a proper amount of water (the ratio of the water to the dry oil sludge is 8: 2) into the biological modulation system, finally adding a proper amount of biological modulation agent into the biological modulation system, mixing and stirring for 0.4-1 h, and conveying the mixture to a feeding system for impurity removal to obtain the water-containing oil sludge after impurity removal.
The system is used for treating the oily sludge, the oily sludge can be subjected to recycling and harmless treatment at a pollution production place, secondary pollution caused by transportation vehicles in the transportation process is avoided, and the system is suitable for on-site treatment of oil-polluted soil generated in an emergency and is also suitable for recycling and harmless treatment of the oily sludge, the ground oil sludge and the oil-based mud.
The above description is only a 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 made by one skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A skid-mounted oily sludge continuous treatment system is characterized by comprising an oily sludge feeding pump, a biological conditioning system, a feeding system, a pretreatment system and an oil-water-slag separation system which are sequentially connected; the oil-water-slag separation system is respectively connected with the water circulation system, the oil product purification system and the discharging system; and the system also comprises a power generation system for supplying power to each system.
2. The skid-mounted oily sludge continuous treatment system according to claim 1, wherein the biological conditioning system is a heating and heat-preserving mixing tank, the feeding system comprises a movable vibrating screen and a sludge conveying hose pump which are connected with each other, the sludge feeding pump is connected with the heating and heat-preserving mixing tank, the heating and heat-preserving mixing tank is connected with the movable vibrating screen, and the biologically-conditioned sludge is conveyed to the pretreatment system through the sludge conveying hose pump.
3. The skid-mounted oily sludge continuous treatment system according to claim 2, wherein the pretreatment system is an ultrasonic homogenizer, and the ultrasonic homogenizer is connected with the feed inlet of the oil sludge separation system.
4. The skid-mounted oily sludge continuous treatment system according to claim 1 or 3, wherein the oil sludge separation system is an oil sludge separator comprising a feed inlet, a water outlet, an oil outlet and a slag outlet; the water outlet is connected with the water circulation system, the oil outlet is connected with the oil product purification system, and the slag outlet is connected with the discharging system.
5. The skid-mounted oily sludge continuous treatment system according to claim 4, wherein the water circulation system is a water tank, and the water tank is connected with a sewage treatment system; the oil product purification system is a centrifugal oil purifier, and the centrifugal oil purifier is connected with the oil storage tank; the discharge system comprises a centrifuge and a screw conveyor which are connected with each other, and the slag outlet is connected with the centrifuge and discharged through the screw conveyor.
6. The skid-mounted oily sludge continuous treatment system according to claim 4, wherein the sewage treatment system is a conventional sewage treatment device.
7. The skid-mounted oily sludge continuous treatment system according to claim 1, wherein the power generation system is a portable diesel generator or a gasoline generator.
8. The skid-mounted oily sludge continuous treatment system according to claim 1, wherein the oily sludge feeding pump, the biological conditioning system, the feeding system, the pretreatment system, the oil-water-residue separation system, the water circulation system, the oil purification system, the discharging system and the power generation system are skid-mounted.
9. The treatment method of the skid-mounted oily sludge continuous treatment system according to claim 1, characterized by comprising the following steps: the method comprises the following steps:
(1) starting a power generation system, conveying the collected water-containing oil sludge to be treated to a biological modulation system through an oil sludge feeding pump, adding a proper amount of biological modulation agent into the biological modulation system, mixing and stirring for 0.4-1 h, and conveying the mixture to a feeding system for impurity removal to obtain water-containing oil sludge after impurity removal;
(2) conveying the water-containing oil sludge subjected to impurity removal in the step (1) to a pretreatment system for demulsification and homogenization treatment to obtain milky oil sludge;
(3) conveying the milky oil sludge obtained in the step (2) to an oil-water-residue separation system, wherein the oil-water-residue separation system separates the milky oil sludge into oil, water and cement-containing residue;
(4) conveying the water obtained in the step (3) to a sewage treatment system through a water circulation system for purification treatment and collection or discharge; purifying the oil obtained in the step (3) by an oil product purification system, and storing the oil by an oil storage tank; and (4) separating the cement-containing slag obtained in the step (3) again through a discharging system and then discharging.
10. The treatment method of the skid-mounted oily sludge continuous treatment system according to claim 9, characterized by comprising the following steps: in the step (1), if the oil sludge to be treated is dry oil sludge, the steps are as follows:
and starting a power generation system, conveying the collected dry oil sludge to be treated to a biological modulation system through an oil sludge feeding pump, adding a proper amount of water into the biological modulation system, finally adding a proper amount of biological modulation agent into the biological modulation system, mixing and stirring for 0.4-1 h, and conveying the mixture to a feeding system for impurity removal to obtain the water-containing oil sludge after impurity removal.
CN201910858936.0A 2019-09-11 2019-09-11 Skid-mounted oil-containing sludge continuous treatment system and treatment method Pending CN110590088A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111410388A (en) * 2020-04-02 2020-07-14 天津鸿源环保科技有限公司 Oil sludge treatment process technology and complete equipment
CN112138466A (en) * 2020-09-30 2020-12-29 中原康 Oil sludge treatment system

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CN108409074A (en) * 2018-01-23 2018-08-17 北京北控京仪环保科技有限公司 A kind of disposal of oily sludge system and technique
CN207862145U (en) * 2018-01-23 2018-09-14 北京北控京仪环保科技有限公司 A kind of disposal of oily sludge system
CN210711201U (en) * 2019-09-11 2020-06-09 中原康 Sled dress formula oil-containing sludge continuous processing system

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Publication number Priority date Publication date Assignee Title
JP2003117590A (en) * 2001-10-17 2003-04-22 Ebara Corp Treatment method and treatment equipment for organic waste
JP2006346556A (en) * 2005-06-15 2006-12-28 Koga Takeshi Sludge reduction apparatus and method
CN203530092U (en) * 2013-10-15 2014-04-09 侯向明 Oily sludge shock wave purification treatment device
CN206538328U (en) * 2017-03-17 2017-10-03 张云亮 Mobile oil-bearing sludge treatment equipment
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111410388A (en) * 2020-04-02 2020-07-14 天津鸿源环保科技有限公司 Oil sludge treatment process technology and complete equipment
CN112138466A (en) * 2020-09-30 2020-12-29 中原康 Oil sludge treatment system

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