CN213680167U - Oily sludge thermal desorption wastewater treatment skid-mounted device - Google Patents
Oily sludge thermal desorption wastewater treatment skid-mounted device Download PDFInfo
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- CN213680167U CN213680167U CN202022481008.8U CN202022481008U CN213680167U CN 213680167 U CN213680167 U CN 213680167U CN 202022481008 U CN202022481008 U CN 202022481008U CN 213680167 U CN213680167 U CN 213680167U
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Abstract
The utility model provides an oil sludge thermal desorption waste water treatment skid-mounted device, includes oil removal gunbarrel, medicine equipment, air supporting equipment, coarse grain deoiling jar, storage mud jar, dewatering equipment, membrane cleaning equipment, membrane treatment facility, air supply equipment, ozone generator, ozone catalytic tower and tail gas decomposer. The outlet of the oil separation sedimentation tank and the outlet of the medicine adding equipment are communicated with the inlet of the air floatation equipment, and the outlet of the air floatation equipment is communicated with the inlet of the coarse grain chemical oil removal tank; the coarse grain chemical oil removal tank, the air floatation equipment and the oil separation settling tank are communicated with a sludge storage tank through sludge outlets; the outlet of the coarse grain oil removal tank is communicated with the inlet of the membrane treatment equipment; the outlet of the membrane treatment equipment is communicated with the inlet of the ozone catalytic tower. The utility model combines pretreatment, membrane treatment and ozone oxidation, on one hand, oil recovery is realized, on the other hand, pollutants are removed to the maximum extent and are used as oil sludge heat removal additional wet water or cooling water, the cost is saved, and zero discharge of waste water is realized; adopt skid-mounted form, realize tearing open fast fortune, installation, use, save engineering volume, labour and time.
Description
Technical Field
The utility model relates to a waste water treatment field, especially a fatlute thermal desorption waste water treatment skid-mounted device.
Background
The thermal desorption technology of oil sludge is a common method for treating polluted oil sludge, the method mainly evaporates and desorbs organic pollutants from a solid phase by directly or indirectly heating the oil sludge, and a part of the evaporated organic matter and water mixed gas forms oil-water-solid mixed liquid, namely oil-containing wastewater after being treated. The suspended matter, oil content and organic matter concentration in the wastewater are all high, and the wastewater belongs to wastewater which is difficult to degrade and treat. As far as now is concerned, the attention on the wastewater is small, and there is little research on a treatment technique for rendering the wastewater harmless.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a fatlute thermal desorption waste water treatment skid-mounted device, the mode through preliminary treatment, membrane treatment and ozone oxidation realizes the high rate of recovery of oil, the high-efficient processing of pollutant.
The technical solution of the utility model is to provide a skid-mounted device for thermal desorption wastewater treatment of oil sludge, which comprises an oil separation settling tank, a coarse grain oil removal tank, a sludge storage tank, a dewatering device, a membrane cleaning device, a membrane treatment device, an air source device, an ozone generator, an ozone catalytic tower and a tail gas decomposer; the water outlet of the oil separation settling tank is communicated with the water inlet of the coarse grain oil removal tank, the sludge outlets of the coarse grain oil removal tank and the oil separation settling tank are both communicated with the inlet of a sludge storage tank, and the outlet of the sludge storage tank is communicated with the inlet of a dewatering device; the water outlet of the coarse grain degreasing tank is communicated with the water inlet of the membrane treatment equipment, and the water outlet of the membrane cleaning equipment is communicated with the flushing port of the membrane treatment equipment; the water outlet of the membrane treatment equipment is communicated with the water inlet of the ozone catalytic tower, the gas outlet of the ozone catalytic tower is communicated with the gas inlet of the tail gas decomposer, the gas inlet of the ozone catalytic tower is communicated with the gas outlet of the ozone generator, and the gas inlet of the ozone generator is communicated with the gas outlet of the gas source equipment.
A fatlute thermal desorption waste water treatment skid-mounted device, wherein, still include charge device and air supporting equipment, charge device's play medicine mouth and the delivery port that separates the oil setting tank all communicate with the water inlet of air supporting equipment, the delivery port and the coarse grain of air supporting equipment remove the water inlet intercommunication of oil tank, the play mud mouth of air supporting equipment and the import intercommunication of storage mud jar.
A fatlute thermal desorption waste water treatment skid-mounted device, wherein, membrane treatment facility adopts tubular ceramic membrane treatment facility or combined type organic membrane treatment facility.
A fatlute thermal desorption waste water treatment skid-mounted device, wherein, air supporting equipment adopts dissolved air flotation machine or cavitation air flotation machine.
A fatlute thermal desorption waste water treatment skid-mounted device, wherein, dewatering equipment adopts plate and frame filter press or folds spiral shell filter press.
A fatlute thermal desorption waste water treatment skid-mounted device, wherein, oil removal gunbarrel, charge equipment, air supporting equipment, coarse grain ization deoiling jar, storage mud jar, dewatering equipment, membrane cleaning equipment, membrane treatment equipment, air supply equipment, ozone generator, ozone catalytic tower and tail gas decomposer are integrated in a sledge.
After the structure more than adopting, compare with prior art, the utility model relates to a fatlute thermal desorption waste water treatment skid-mounted device has following advantage:
the utility model firstly adopts the oil separation settling tank and the coarse grain oil removal tank to pretreat the wastewater, on one hand, most of floating oil is collected, on the other hand, suspended matters such as ash content and the like can be removed, the blocking of later membrane treatment is reduced, the cleaning frequency of the membrane is reduced, and the service life of the membrane is prolonged;
secondly, the oil drops are effectively intercepted by adopting membrane treatment equipment, so that the purpose of oil-water separation is achieved, chemical agents are not consumed, new sludge is not generated, the effluent quality is good, and the high quality of recovered oil can be achieved; compared with the existing physical chemical method and biological method, the method has the advantages of small occupied area, convenient operation, simple operation and higher automation degree;
finally, by means of the ozone oxidation process with strong oxidation capacity and the addition of the catalyst in the ozone catalytic tower, compared with other existing advanced oxidation methods (such as Fenton oxidation), the secondary pollution can be effectively avoided, the utilization rate of ozone can be improved, the application range of organic matters oxidized by ozone can be widened, and the efficient wastewater treatment effect can be achieved.
Drawings
Fig. 1 is a structural block diagram of the skid-mounted device for oil sludge thermal desorption wastewater treatment of the utility model.
Detailed Description
The skid-mounted device for thermal desorption wastewater treatment of oil sludge of the utility model is further described in detail with reference to the accompanying drawings and the specific embodiments:
as shown in fig. 1, in the present embodiment, the utility model relates to a thermal desorption waste water skid-mounted device for oil sludge, which comprises an oil separation settling tank 1, a coarse-grained oil removal tank 4, a sludge storage tank 5, a dewatering device 6, a membrane cleaning device 7, a membrane treatment device 8, an air source device 9, an ozone generator 10, an ozone catalytic tower 11 and a tail gas decomposer 12. The water outlet of the oil separation settling tank 1 is communicated with the water inlet of the coarse grain oil removal tank 4; the sludge outlet of the coarse-grained oil removal tank 4 and the sludge outlet of the oil separation settling tank 1 are both communicated with the inlet of a sludge storage tank 5; the outlet of the sludge storage tank 5 is communicated with the inlet of the dewatering equipment 6; the water outlet of the coarse-grained degreasing tank 4 is communicated with the water inlet of the membrane treatment equipment 8; the water outlet of the membrane cleaning equipment 7 is communicated with the flushing port of the membrane treatment equipment 8; the water outlet of the membrane treatment device 8 is communicated with the water inlet of the ozone catalytic tower 11; the gas outlet of the ozone catalytic tower 11 is communicated with the gas inlet of the tail gas decomposer 12; the air inlet of the ozone catalytic tower 11 is communicated with the air outlet of the ozone generator 10; the air inlet of the ozone generator 10 is communicated with the air outlet of the air source device 9.
In order to further improve the pretreatment effect of the wastewater, the present embodiment adds the chemical adding device 2 and the air flotation device 3 between the oil separation settling tank 1 and the coarse grain oil removal tank 4, and sets the corresponding connection relationship as follows: the medicine outlet of the medicine adding device 2 and the water outlet of the oil separation settling tank 1 are simultaneously communicated with the water inlet of the air flotation device 3, the water outlet of the air flotation device 3 is communicated with the water inlet of the coarse grain chemical oil removal tank 4, and the mud outlet of the coarse grain chemical oil removal tank 4, the mud outlet of the air flotation device 3 and the mud outlet of the oil separation settling tank 1 are simultaneously communicated with the inlet of the mud storage tank 5.
The membrane treatment equipment 8 can adopt tubular ceramic membrane treatment equipment or composite organic membrane treatment equipment; the air floatation device 3 can adopt a dissolved air floatation machine or a cavitation air floatation machine; the dewatering equipment 6 can adopt a plate-and-frame filter press or a stacked-spiral filter press. By adopting the equipment, the waste water and the sludge can be more conveniently treated, and other existing equipment can be adopted.
Will separate oil settling tank 1, dosing device 2, air supporting equipment 3, coarse grain deoiling tank 4, store up mud jar 5, dewatering equipment 6, membrane cleaning equipment 7, membrane treatment facility 8, air supply equipment 9, ozone generator 10, ozone catalytic tower 11 and tail gas decomposer 12 integration in a sledge, thereby realize the utility model discloses a tear shipping fast open, installation, use, save engineering volume, labour and time. In addition, the above devices are all existing devices, and therefore the specific structure thereof is not described herein.
Use the utility model discloses when handling fatlute thermal desorption waste water, can adopt following method:
1) oily wastewater enters from a water inlet of the oil separation settling tank 1, a partition plate is arranged in an inner cavity of the oil separation settling tank 1, the wastewater enters from the upper part and is converged into a water collecting tank from bottom to top after passing through the bottom of the partition plate; most of the floating oil and suspended matters are collected by the oil collecting tank at the top, and the heavy oil and other impurities in the wastewater are gathered at the bottom of the oil separation settling tank 1 and are periodically discharged into the sludge storage tank 5 through the sludge outlet.
2) The wastewater treated by the oil separation settling tank 1 enters an air floatation device 3, a coagulant is added into the wastewater through a dosing device 2 to destroy the emulsification state of oil, so that the oil is accumulated, and the oil is separated by air floatation and collected by an oil skimming device; other fine particles in the wastewater are aggregated into large particles by a coagulant, fall into a sludge hopper of the air floatation device 3 and are periodically discharged into a sludge storage tank 5.
3) The wastewater treated by the air floatation device 3 enters a coarse grain oil removal tank 4, oil droplets in water are adsorbed and captured by various actions of oleophylic and hydrophobic properties of a coalescence medium, interception and adsorption of the medium, diffusion, inertia, gravitation and the like of oil, the oil droplets fall off after being enlarged, and float on an oil collection area for collection; the treated wastewater is collected by a water collecting tank and then enters a membrane treatment device 8; other impurities precipitated at the bottom of the coarse-grained oil removal tank 4 are periodically discharged into the sludge storage tank 5.
4) The wastewater treated by the coarse-grained oil removal tank 4 is sent to a membrane treatment device 8 by a pump, and is subjected to membrane separation to form an oil concentrated solution and a water clear solution, wherein the oil concentrated solution is sent to an oil storage tank, and the water clear solution enters an ozone catalytic tower 11.
5) A catalyst is additionally arranged in the ozone catalytic tower 11, and a partition plate is arranged in the tower; waste water firstly enters the tower from top, contacts with the catalyst, then contacts with ozone, flows from bottom to top through the baffle plate at the bottom of the partition plate, passes through the catalyst layer together with the ozone, then enters the clear water area, and converges into the water collecting pipe to be used as humidifying water for thermal desorption treatment of oil sludge, so that the subsequent thermal desorption treatment cost of the oil sludge is saved.
6) And (3) conveying the sludge in the sludge storage tank 5 into a dewatering device 6 for dewatering, and treating the dewatered sludge in a thermal desorption system or carrying out treatment.
7) The membrane cleaning equipment 7 is opened periodically to carry out chemical cleaning on the membrane treatment equipment 8, and waste liquid generated by cleaning enters the ozone catalytic tower 11 to be treated and then is used as humidifying water of an oil sludge thermal desorption system so as to save the subsequent oil sludge thermal desorption treatment cost.
8) An air source is used as an air source, after filtration and drying treatment, ozone is prepared by an ozone generator 10 and then is sent to an aeration system at the bottom of an ozone catalytic tower 11, and tail gas at the top of the ozone catalytic tower 11, which may have residual ozone, is sent to a tail gas decomposer 12 for decomposition and then is discharged into the atmosphere.
The utility model discloses a method that preliminary treatment, membrane treatment and ozone oxidation combined together realizes oil recovery on the one hand, and on the other hand carries out getting rid of maximize with the pollutant, as follow-up fatlute thermal desorption system's humidification water or cooling water to practice thrift follow-up fatlute thermal desorption treatment cost, realize the zero release of waste water. Adopt skid-mounted form equipment, can realize tearing open fast of whole device fortune, installation, use, save engineering volume, labour and time.
The above-mentioned embodiments are only described for the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and the technical solution of the present invention is not limited by the above-mentioned embodiments, and various modifications and improvements made by those skilled in the art can be made without departing from the spirit of the present invention.
Claims (6)
1. The utility model provides an oil sludge thermal desorption waste water treatment skid-mounted device which characterized in that: comprises an oil separation settling tank (1), a coarse grain oil removal tank (4), a sludge storage tank (5), a dehydration device (6), a membrane cleaning device (7), a membrane treatment device (8), a gas source device (9), an ozone generator (10), an ozone catalytic tower (11) and a tail gas decomposer (12);
the water outlet of the oil separation settling tank (1) is communicated with the water inlet of the coarse-grain oil removal tank (4), the sludge outlets of the coarse-grain oil removal tank (4) and the oil separation settling tank (1) are communicated with the inlet of a sludge storage tank (5), and the outlet of the sludge storage tank (5) is communicated with the inlet of a dewatering device (6);
the water outlet of the coarse-grained oil removal tank (4) is communicated with the water inlet of the membrane treatment equipment (8), and the water outlet of the membrane cleaning equipment (7) is communicated with the flushing port of the membrane treatment equipment (8);
the water outlet of the membrane treatment equipment (8) is communicated with the water inlet of an ozone catalytic tower (11), the gas outlet of the ozone catalytic tower (11) is communicated with the gas inlet of a tail gas decomposer (12), the gas inlet of the ozone catalytic tower (11) is communicated with the gas outlet of an ozone generator (10), and the gas inlet of the ozone generator (10) is communicated with the gas outlet of a gas source equipment (9).
2. The skid-mounted device for the thermal desorption wastewater treatment of oil sludge according to claim 1, which is characterized in that: still include charge equipment (2) and air supporting equipment (3), the delivery port of charge equipment (2) and the delivery port of separating oil setting tank (1) all communicate with the water inlet of air supporting equipment (3), the delivery port of air supporting equipment (3) and the water inlet intercommunication of coarse graining deoiling jar (4), the mud outlet of air supporting equipment (3) and the import intercommunication of storing up mud jar (5).
3. The skid-mounted device for thermal desorption wastewater treatment of oil sludge according to claim 2, which is characterized in that: the membrane treatment equipment (8) adopts tubular ceramic membrane treatment equipment or composite organic membrane treatment equipment.
4. The skid-mounted device for thermal desorption wastewater treatment of oil sludge according to claim 2, which is characterized in that: the air floatation device (3) adopts a dissolved air floatation machine or a cavitation air floatation machine.
5. The skid-mounted device for thermal desorption wastewater treatment of oil sludge according to claim 2, which is characterized in that: and the dewatering equipment (6) adopts a plate-and-frame filter press or a stacked spiral filter press.
6. The skid-mounted device for thermal desorption wastewater treatment of oil sludge as claimed in any one of claims 2 to 5, wherein: the oil separation settling tank (1), the dosing equipment (2), the air floatation equipment (3), the coarse grain oil removal tank (4), the sludge storage tank (5), the dewatering equipment (6), the membrane cleaning equipment (7), the membrane treatment equipment (8), the air source equipment (9), the ozone generator (10), the ozone catalytic tower (11) and the tail gas decomposer (12) are integrated in a sledge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022481008.8U CN213680167U (en) | 2020-10-30 | 2020-10-30 | Oily sludge thermal desorption wastewater treatment skid-mounted device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022481008.8U CN213680167U (en) | 2020-10-30 | 2020-10-30 | Oily sludge thermal desorption wastewater treatment skid-mounted device |
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| Publication Number | Publication Date |
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| CN213680167U true CN213680167U (en) | 2021-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022481008.8U Active CN213680167U (en) | 2020-10-30 | 2020-10-30 | Oily sludge thermal desorption wastewater treatment skid-mounted device |
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| CN (1) | CN213680167U (en) |
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