CN201473418U - Waste water containing oil purifying and emulsifying device by cooperating low-temperature plasma with flocculating agent - Google Patents
Waste water containing oil purifying and emulsifying device by cooperating low-temperature plasma with flocculating agent Download PDFInfo
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- CN201473418U CN201473418U CN2009201874820U CN200920187482U CN201473418U CN 201473418 U CN201473418 U CN 201473418U CN 2009201874820 U CN2009201874820 U CN 2009201874820U CN 200920187482 U CN200920187482 U CN 200920187482U CN 201473418 U CN201473418 U CN 201473418U
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Abstract
The utility model relates to a waste water containing oil purifying and emulsifying device by cooperating low-temperature plasma with flocculating agent. A stirrer is arranged on one side inside a reaction tank of the device, more than two anode plates and cathode plates which are serially connected are respectively uniformly distributed on two opposite lateral walls of the other side inside the reaction tank, the anode plates and the cathode plates are arrayed in a staggered form at intervals to form a Z-shaped passage, the anode plates and the cathode plates are respectively connected with a high-voltage pulse plasma generator located above the anode plates and the cathode plates, a flocculating agent container and a feeding pipe are further arranged above the reaction tank, the other end of the feeding pipe is connected with a feeding pump, the feeding pump is communicated with a grating groove, and the lower portion of the reaction tank on one side of the stirrer is communicated with a feeding side of a sediment separator through a pipe. The device is fast in demulsification speed, high in efficiency, simple in equipment and low in power consumption, and consumes electric energy of 0.12-0.22kW.h when purifying waste water per square meter. External discharged waste water after being purified and treated is smaller than international executive secondary discharge standards: COD value is smaller than 150mg/L, oil content is smaller than 10mg/L, suspended matter content is smaller than 200mg/L, and ph value is 7-9.
Description
Technical field
The utility model relates to the treatment unit of emulsified oily watewater.
Background technology
Emulsified oily watewater is that industries such as mechanical workout, metal finishing, mine hydraulic prop use a kind of oil-in-water emulsion to make lubricated, cooling circulation liquid and a kind of oily(waste)water of producing in working process such as cutting, grinding, hydrostatic transmission, and its main component is machine oil or mineralized oil, emulsifying agent, lubricant, sanitas, extreme-pressure additive and water.The characteristics of this waste water are the organic concentration height, and oleaginousness is big, and COD is higher, and colourity is dark, intermittently discharged, amount are few, but emulsified oily watewater is highly stable, and unsuitable breakdown of emulsion, intractable; Particularly its biological degradability of mineral oil is poor, can be trapped in for a long time in the water and soil earth, if directly discharging is with serious pollution of ecological environment.
Breaking milk and removing oil is a key of handling emulsified oily watewater, and breaking method commonly used at present has heating method, salting-out process, coacervation, acidization, chemical flocculation floating method, electrolytic process, ultrafiltration process and hybrid system (as breakdown of emulsion-coagulation-photocatalytic oxidation, saltout-acidifying-settling process, oil removal-little flocculence, saltout-air supporting-absorption method) etc.But weak point is all arranged in actual application, though for example chemical method has less investment, advantage easy to operate, treatment effect is not fine; Electrolytic process, ultrafiltration process are subjected to certain limitation because of the bigger application of its required equipment investment; The air supporting method is also thorough inadequately to the processing of emulsified oily watewater; It is longer to mix the rule operational path, and equipment is more.Water quality behind the breakdown of emulsion generally adopts methods such as biochemical process, charcoal absorption, active coal absorption, ozone method, magnetic separation method, extraction process, membrane separation process further to purify, to reach the discharging water quality standard.
The utility model content
For solve existing emulsified oily watewater handle exist or treatment effect be not fine or need the bigger problem of facility investment that the utility model provides a kind of manufacturing cost economy, device for purifying and emulsifying oily wastewater by low temperature plasma synergetic flocculating agent that treatment effect is good.
Concrete technical project scheme is as follows:
Device for purifying and emulsifying oily wastewater by low temperature plasma synergetic flocculating agent comprises reactive tank 14, a side is provided with agitator 5 in the described reactive tank 14, corresponding two side of opposite side is laid with placed in-line positive plate 12 and placed in-line negative plate 13 more than two more than two respectively in it, described positive plate 12 and negative plate 13 staggered being spaced form " it " font passage between staggered spaced positive plate 12 and the negative plate 13; Described positive plate 12 is being connected the high voltage pulse discharge plasma producer 3 that is positioned at its top by lead respectively with negative plate 13, and high voltage pulse discharge plasma producer 3 one sides are connecting voltate regulator 2; The top of agitator 5 is provided with flocculation agent container 4; Feed-pipe is established in reactive tank 14 tops at " it " font feeder connection place that is formed by positive plate 12 and negative plate 13, and the other end of described feed-pipe is connecting fresh feed pump 15, and fresh feed pump 15 is being communicated with frame trough 17, is provided with grid 16 in the described frame trough 17; Reactive tank 14 bottoms of agitator 5 one sides are being communicated with the feeding side of precipitate and separate device 6 by pipeline.
Spacing between described positive plate 12 and the negative plate 13 is the 10-45 millimeter.
Described positive plate 12 and negative plate 13 materials are respectively aluminium expanded sheets and titanium board network or stainless steel plate mesh.
Described precipitate and separate device 6 feeding sides are provided with baffle plate 11, and its opposite side top is provided with supernatant liquor relief outlet 8, and its bottom is provided with throw out relief outlet 10.
Described frame trough 17 bottoms are provided with outlet, and its outlet is being communicated with the inlet of fresh feed pump 15, grid 16 tilting frame trough 17 lower part outlets one sides that are positioned at.
The base of described baffle plate 11 is the 20-50 millimeter apart from the distance of precipitate and separate device 6 bottoms.
Described precipitate and separate device 6 bottoms are taper.
Described processed emulsified oily watewater is controlled at 15～25min from the time that reactive tank 14 1 ends flow to the other end; Used flocculation agent is inorganic polyaluminium salts or molysite, and addition is 1%～4% of a processed emulsified oily watewater quality; The residence time 2～the 4h of processed emulsified oily watewater in precipitate and separate device 6.
The output voltage range of high voltage pulse discharge plasma producer 3 is 10～20kV, and frequency is 50～400Hz.
Useful technique effect of the present utility model embodies in the following areas:
1, the utility model using plasma breakdown of emulsion, and make breakdown of emulsion flocculation integrated.Low-temperature plasma can produce a large amount of free particles, electronics, active group and active oxygen atom in the continuous discharge process; A large amount of electronics can effectively destroy the electrobalance state of emulsified oily watewater under the strengthening effect of plasma body, thereby it is stable that the colloidal state of emulsified oily watewater is lost, and effectively reaches the breakdown of emulsion purpose; A large amount of free particles of plasma generation and active group are attacked the larger molecular organics in the emulsified oily watewater continuously simultaneously, make it further to be degraded to small-molecule substance, help next step flocculation sediment; The organism of a large amount of active oxygen atoms of plasma generation in also can the efficient oxidation emulsifying waste water once more, thus reach the purpose that reduces COD.Add flocculation agent in the emulsified oily watewater after action of plasma, and stir, make it uniform mixing.
2, the utility model device de-emulsification speed is fast, efficient is high, and equipment is simple, and power consumption is also lower, purifies every cube of waste water power consumption at 0.12-0.22kW.h.
3, the secondary discharge standard that the efflux wastewater after the utility model equipment clean is handled is carried out less than the world: the COD value is less than 150mg/L, and oils content is less than 10mg/L, and suspension content is less than 200mg/L, and the pH value is 7-9.
But 4, the utility model equipment operate continuously, but also intermittent operation is flexible, and the emulsified oily watewater that can be adapted to big, medium-sized and small enterprises's scale purifies.
Description of drawings
Fig. 1 is the utility model structural representation,
Fig. 2 is the reactive tank vertical view.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described by embodiment.
Embodiment 1:
Referring to Fig. 1 and Fig. 2, device for purifying and emulsifying oily wastewater by low temperature plasma synergetic flocculating agent comprises reactive tank 14, and reactive tank 14 is the fiber glass epoxy global formation, and its length is 2000mm, and the height of groove and width are respectively 500 and 400mm; A side is equipped with agitator 5 under the liquid in the reactive tank 14, uniform respectively three positive plates 12 and three negative plates 13 of being equipped with in corresponding two side of opposite side in it, three positive plates 12 and three negative plates 13 are in parallel respectively, and positive plate 12 and negative plate 13 staggered being spaced, form " it " font passage between staggered spaced positive plate 12 and the negative plate 13, spacing between the two is 45 millimeters, and the two material is respectively aluminium expanded sheets and titanium board network.Positive plate 12 is being connected the high voltage pulse discharge plasma producer 3 that is positioned at its top by lead respectively with negative plate 13, and high voltage pulse discharge plasma producer 3 one sides are connecting AC power 1 by voltate regulator 2.The output voltage of high voltage pulse discharge plasma producer 3 is 20kV, and frequency is 400Hz.The top of agitator 5 is equipped with flocculation agent container 4; Feed-pipe is installed in reactive tank 14 tops at " it " font feeder connection place that is formed by positive plate 12 and negative plate 13, the other end of feed-pipe is connecting the outlet of fresh feed pump 15, the import of fresh feed pump 15 is being communicated with frame trough 17 outlets, grid 16 tilting frame trough 17 lower part outlets one sides that are positioned at.Reactive tank 14 bottoms of agitator 5 one sides are being communicated with the feeding side of precipitate and separate device 6 by pipeline, and precipitate and separate device 6 feeding sides are provided with baffle plate 11, and the bottom of baffle plate 11 is 50 millimeters apart from the distance of precipitate and separate device 6 bottoms; Precipitate and separate device 6 opposite side tops are provided with supernatant liquor relief outlet 8, and its bottom is provided with throw out relief outlet 10.
Emulsified oily watewater at first enters frame trough 17, through suspended solid and the surperficial oil slick that grid 16 is removed wherein, regularly collects, discharges.Remove emulsifying waste water behind the impurity with fresh feed pump 15 from having the end input reactive tank 14 of pole plate, along " it " font passage each pole plate of flowing through, then flow to a end, at this flocculation agent thorough mixing with adding with agitator 5.Liquid is controlled at 25min from the time that reactive tank 14 1 ends flow to the other end.Flocculation agent is inorganic polyaluminium salts, and addition is 4% of a wastewater quality.
Enter an end that has baffle plate 11 the precipitate and separate device 6 from reactive tank 14 effusive liquid, this baffle plate can prevent to import the mobile interference of liquid, avoids existing sedimentary secondary to kick up.Liquid residence time in precipitate and separate device 6 is 4h, this residence time can be controlled by precipitate and separate groove volume, supernatant liquor 7 after the precipitate and separate flows out through pipeline from the top supernatant liquor relief outlet 8 of settling bath, bottom throw out 9 is through the conical collector enrichment of trench bottom, and after throw out relief outlet 10 usefulness spiral conveyers get rid of continuously.
Embodiment 2:
Spacing between positive plate 12 and the negative plate 13 is 10 millimeters, and negative plate 13 materials are stainless steel;
The output voltage of high voltage pulse discharge plasma producer 3 is 10kV, and frequency is 50Hz;
The bottom of baffle plate 11 is 20 millimeters apart from the distance of precipitate and separate device 6 bottoms;
Liquid is controlled at the 15min scope from the time that reactive tank 14 1 ends flow to the other end.Flocculation agent is a molysite, and addition is 1% scope of wastewater quality.Liquid is mean residence time 2h in precipitate and separate device 6.
Other is with embodiment 1.
Claims (9)
1. device for purifying and emulsifying oily wastewater by low temperature plasma synergetic flocculating agent, it is characterized in that: comprise reactive tank (14), a side is provided with agitator (5) in the described reactive tank (14), corresponding two side of opposite side is laid with placed in-line positive plate (12) and placed in-line negative plate (13) more than two more than two respectively in it, described positive plate (12) and negative plate (13) are staggered to be spaced, and forms " it " font passage between staggered spaced positive plate (12) and the negative plate (13); Described positive plate (12) is being connected the high voltage pulse discharge plasma producer (3) that is positioned at its top by lead respectively with negative plate (13), and high voltage pulse discharge plasma producer (3) one sides are connecting voltate regulator (2); The top of agitator (5) is provided with flocculation agent container (4); Feed-pipe is established in reactive tank (14) top at " it " font feeder connection place that is formed by positive plate (12) and negative plate (13), the other end of described feed-pipe is connecting fresh feed pump (15), fresh feed pump (15) is being communicated with frame trough (17), is provided with grid (16) in the described frame trough (17); Reactive tank (14) bottom of agitator (5) one sides is being communicated with the feeding side of precipitate and separate device (6) by pipeline.
2. device for purifying and emulsifying oily wastewater by low temperature plasma synergetic flocculating agent according to claim 1 is characterized in that: the spacing between described positive plate (12) and the negative plate (13) is the 10-45 millimeter.
3. device for purifying and emulsifying oily wastewater by low temperature plasma synergetic flocculating agent according to claim 1 is characterized in that: described positive plate (12) and negative plate (13) material are respectively aluminium expanded sheets and titanium board network or stainless steel plate mesh.
4. device for purifying and emulsifying oily wastewater by low temperature plasma synergetic flocculating agent according to claim 1, it is characterized in that: described precipitate and separate device (6) feeding side is provided with baffle plate (11), its opposite side top is provided with supernatant liquor relief outlet (8), and its bottom is provided with throw out relief outlet (10).
5. device for purifying and emulsifying oily wastewater by low temperature plasma synergetic flocculating agent according to claim 1, it is characterized in that: described frame trough (17) bottom is provided with outlet, its outlet is being communicated with the inlet of fresh feed pump (15), tilting frame trough (17) lower part outlet one side that is positioned at of grid (16).
6. device for purifying and emulsifying oily wastewater by low temperature plasma synergetic flocculating agent according to claim 4 is characterized in that: the base of described baffle plate (11) is the 20-50 millimeter apart from the distance of precipitate and separate device (6) bottom.
7. device for purifying and emulsifying oily wastewater by low temperature plasma synergetic flocculating agent according to claim 1 is characterized in that: described precipitate and separate device (6) bottom is taper.
8. the working method of device for purifying and emulsifying oily wastewater by low temperature plasma synergetic flocculating agent according to claim 1 is characterized in that: described processed emulsified oily watewater is controlled at 15-25min from the time that reactive tank (14) one ends flow to the other end; Used flocculation agent is inorganic polyaluminium salts or molysite, and addition is the 1%-4% of processed emulsified oily watewater quality; The residence time 2-4h of processed emulsified oily watewater in precipitate and separate device (6).
9. device for purifying and emulsifying oily wastewater by low temperature plasma synergetic flocculating agent according to claim 1 is characterized in that: the output voltage range of high voltage pulse discharge plasma producer (3) is 10-20kV, and frequency is 50-400Hz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201874820U CN201473418U (en) | 2009-09-11 | 2009-09-11 | Waste water containing oil purifying and emulsifying device by cooperating low-temperature plasma with flocculating agent |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201874820U CN201473418U (en) | 2009-09-11 | 2009-09-11 | Waste water containing oil purifying and emulsifying device by cooperating low-temperature plasma with flocculating agent |
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| Publication Number | Publication Date |
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| CN201473418U true CN201473418U (en) | 2010-05-19 |
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| CN2009201874820U Expired - Lifetime CN201473418U (en) | 2009-09-11 | 2009-09-11 | Waste water containing oil purifying and emulsifying device by cooperating low-temperature plasma with flocculating agent |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101648761B (en) * | 2009-09-11 | 2011-05-11 | 陈明功 | Device for purifying and emulsifying oily wastewater by low temperature plasma synergetic flocculating agent |
| CN102294193A (en) * | 2011-06-13 | 2011-12-28 | 苏州市奥普斯等离子体科技有限公司 | Low temperature plasma fuel oil microemulsion method and apparatus thereof |
| CN102351282A (en) * | 2011-08-12 | 2012-02-15 | 宁波大学 | Device and method for treating difficultly degraded organic waste water by plasma technology |
| CN110092447A (en) * | 2019-05-06 | 2019-08-06 | 重庆工商大学 | A kind of high COD emulsifying waste water demulsification decomposition apparatus of high-voltage discharge plasma |
| CN110092448A (en) * | 2019-05-06 | 2019-08-06 | 重庆工商大学 | A kind of concentric circles bipolar electrode discharge plasma O/W emulsion breaking device |
-
2009
- 2009-09-11 CN CN2009201874820U patent/CN201473418U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101648761B (en) * | 2009-09-11 | 2011-05-11 | 陈明功 | Device for purifying and emulsifying oily wastewater by low temperature plasma synergetic flocculating agent |
| CN102294193A (en) * | 2011-06-13 | 2011-12-28 | 苏州市奥普斯等离子体科技有限公司 | Low temperature plasma fuel oil microemulsion method and apparatus thereof |
| CN102351282A (en) * | 2011-08-12 | 2012-02-15 | 宁波大学 | Device and method for treating difficultly degraded organic waste water by plasma technology |
| CN102351282B (en) * | 2011-08-12 | 2013-04-24 | 宁波大学 | Device and method for treating difficultly degraded organic waste water by plasma technology |
| CN110092447A (en) * | 2019-05-06 | 2019-08-06 | 重庆工商大学 | A kind of high COD emulsifying waste water demulsification decomposition apparatus of high-voltage discharge plasma |
| CN110092448A (en) * | 2019-05-06 | 2019-08-06 | 重庆工商大学 | A kind of concentric circles bipolar electrode discharge plasma O/W emulsion breaking device |
| CN110092448B (en) * | 2019-05-06 | 2021-12-17 | 重庆工商大学 | Concentric circle double-electrode discharge plasma O/W emulsion breaking device |
| CN110092447B (en) * | 2019-05-06 | 2021-12-21 | 重庆工商大学 | High COD emulsification wastewater breakdown of emulsion degradation device of high pressure discharge plasma |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100519 Effective date of abandoning: 20090911 |