CN111137948A - Emulsion breaking process method for emulsion - Google Patents
Emulsion breaking process method for emulsion Download PDFInfo
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- CN111137948A CN111137948A CN202010063151.7A CN202010063151A CN111137948A CN 111137948 A CN111137948 A CN 111137948A CN 202010063151 A CN202010063151 A CN 202010063151A CN 111137948 A CN111137948 A CN 111137948A
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
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- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
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- Analytical Chemistry (AREA)
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- General Chemical & Material Sciences (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention relates to a demulsification process method of emulsion, which comprises the following steps: s1, pouring the industrial wastewater into a wastewater treatment device; s2, adding a demulsifier and a flocculant into the wastewater treatment device; s3, stirring the industrial wastewater in the wastewater treatment device, and layering the industrial wastewater; s4, discharging the clear water on the upper layer of the industrial wastewater and the sediment on the lower side in the wastewater treatment device respectively. It can react fast, improves the speed of waste water treatment.
Description
Technical Field
The invention relates to the technical field of wastewater treatment, in particular to a demulsification process method for emulsion.
Background
With the development of society, more and more factories appear in cities, and the amount of industrial wastewater is increased. In order to reduce the environmental pollution caused by the direct discharge of industrial wastewater, wastewater treatment systems are increasingly constructed in various plants. The present industrial wastewater contains various pollutants, wherein an emulsion containing emulsified oil is one of the most difficult to separate in oily wastewater, the emulsion is oil-in-water type wastewater mainly composed of oil, emulsifier and water, because the emulsifier is a surfactant, the dispersed phase is dispersed in a continuous phase in the form of droplets during the emulsification process, the emulsifier reduces the cross-sectional tension of each component in the mixed system, and forms a firm film on the surfaces of the droplets to prevent the droplets from aggregating with each other, thereby maintaining a uniform emulsion. The existing wastewater demulsification equipment is generally realized by slowly reacting a demulsifier in wastewater, and the efficiency is low.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a demulsification process method for an emulsion, which can quickly react and improve the speed of wastewater treatment.
The above object of the present invention is achieved by the following technical solutions:
a demulsification process method of emulsion comprises the following steps:
s1, pouring the industrial wastewater into a wastewater treatment device;
s2, adding a demulsifier and a flocculant into the wastewater treatment device;
s3, stirring the industrial wastewater in the wastewater treatment device, and layering the industrial wastewater;
s4, discharging the clear water on the upper layer of the industrial wastewater and the sediment on the lower side in the wastewater treatment device respectively.
By adopting the technical scheme, the industrial wastewater is poured into the wastewater treatment device, and the demulsifier and the flocculant are added. The demulsifier can well destroy the structure of the emulsified liquid to separate the emulsified liquid into an oil phase and a water phase, and further accelerates the speed of destroying the emulsified liquid in the industrial wastewater by stirring. Then under the action of flocculant the oil phase is flocculated and precipitated, then the clear water in the upper layer of industrial waste water and the precipitate on lower side are respectively discharged, so that the treatment can be completed. It can quickly react and improve the speed of wastewater treatment
The present invention in a preferred example may be further configured to: waste water treatment device include the agitator tank, fixed mounting has the division board of vertical setting in the agitator tank, the division board divide into left unit cavity and right unit cavity with the inboard cavity of agitator tank, there is the space at the interval between the lower side of division board and the inboard bottom surface of agitator tank, it installs agitating unit to rotate between the lower side of division board and agitator tank bottom surface, agitating unit includes the (mixing) shaft of perpendicular to agitator tank bottom surface, fixed mounting is at the epaxial stirring paddle of stirring and drive (mixing) shaft pivoted agitator motor, be connected with the inlet tube respectively on the lateral wall of agitator tank, outlet pipe and blow off pipe, the position that inlet tube and outlet pipe and agitator tank are connected is located the both sides of division board respectively, and be higher than the lower side of division board, the height that highly is higher than the outlet pipe of inlet tube, blow off pipe fixed connection is in the.
Through adopting above-mentioned technical scheme, the agitator tank is separated into left unit cavity and right unit cavity by the division board, and the bottom of left unit cavity and right unit cavity is linked together. The industrial wastewater enters the left unit cavity when being poured into the stirring box, then flows into the right unit cavity, and is stirred by the stirring shaft after demulsifier and flocculant are injected into the stirring box, and new industrial wastewater is continuously poured into the stirring box by the inlet pipe during stirring. When the liquid level in the left unit cavity is increased, the liquid level in the right unit cavity is also increased, and when the liquid level in the right unit cavity is higher than the water outlet pipe, the liquid in the stirring box is discharged from the water outlet pipe. Because the flocculating agent is added in the stirring tank, most of the sediment can be precipitated at the bottom of the stirring tank, and the clear water at the upper layer in the industrial wastewater discharged from the water outlet pipe. And then, the sewage containing the sediment at the lower side in the stirring box is discharged by opening the sewage discharge pipe at the lower side of the stirring box. When the industrial wastewater is treated, the standing waiting time is reduced, the industrial wastewater can be continuously treated, the frequency of discharging the industrial wastewater containing precipitates is reduced, and the treatment speed of the industrial wastewater is improved.
The present invention in a preferred example may be further configured to: the lateral wall of agitator tank on fixedly connected with intake pipe, the other end and the air pump of intake pipe are connected, the position that intake pipe and agitator tank are connected is located the division board and is close to one side of inlet tube, and the position that intake pipe and agitator tank are connected is higher than the position that inlet tube and agitator tank are connected.
Through adopting above-mentioned technical scheme, in order to make the sediment in the agitator tank be difficult for because the (mixing) shaft drives and floats to liquid level department, lead to being discharged in the sediment outlet pipe, consequently can the interval have a very long distance between the lower side of outlet pipe in the agitator tank and division board. However, in the case of discharging the industrial wastewater containing the precipitate through the sewage drain, the amount of the industrial wastewater containing the precipitate is large, and the industrial wastewater needs to be separated again. Through being provided with the intake pipe, when the industrial waste water that contains the sediment needs to be discharged, make the (mixing) shaft stop work earlier, later inject the air into left unit cavity through the air pump, make the liquid level in the right unit cavity rise, when the liquid level in the right unit cavity rises to the position adjacent with the outlet pipe, the clear water of upper strata is by fine discharge in the waste water. And finally, the air pump is closed, and the residual industrial wastewater containing the precipitate is discharged by opening the drain pipe, so that the wastewater treatment efficiency is effectively improved.
The present invention in a preferred example may be further configured to: the stirring device comprises at least two stirring shafts, each stirring shaft is provided with a stirring blade, stirring gears are fixedly arranged on the stirring shafts, the stirring gears on the two adjacent stirring shafts are mutually meshed, the output shaft of the stirring motor is fixedly connected with a driving gear, and the driving gear is meshed with the stirring gear on one of the stirring shafts.
Through adopting above-mentioned technical scheme, through being provided with many (mixing) shafts, can make demulsifier and flocculating agent and industrial waste water intensive mixing when the stirring, better breaking of emulsion and precipitation.
The present invention in a preferred example may be further configured to: the stirring box in fixed mounting have a bottom plate, there is the space at the interval between the bottom plate and the bottom surface of stirring box, seted up the through-hole on the bottom plate, the position that blow off pipe and stirring box are connected is located the bottom plate downside.
Through adopting above-mentioned technical scheme, through being provided with the bottom plate, and seted up the through-hole on the bottom plate, the sediment that appears in the agitator tank can be followed and is fallen into the bottom plate downside in the through-hole. Because the (mixing) shaft is in the pivoted, the rotational speed can not be too fast, otherwise the deposit that leads to appearing is stirred garrulous phenomenon easily, and the slow (mixing) shaft of rotational speed is in the stirring, and the water velocity in the agitator tank is less, and the sediment of bottom plate downside is difficult to float to the bottom plate upside in following the through-hole again, and the deposit of accomodating that can be fine is convenient for later discharge through the blow off pipe.
The present invention in a preferred example may be further configured to: the side that is on a parallel with the division board in the separation board and the inside wall of agitator tank all have a clearance, the projection of (mixing) shaft and stirring paddle on the agitator tank bottom surface is located the projection of separation board on agitator tank bottom surface.
Through adopting above-mentioned technical scheme, through being provided with the baffler, can further carry out the separation to the sediment of industrial waste water bottom in the agitator tank, make the sediment of agitator tank bottom difficult quilt when the stirring raise, make outlet pipe department deposit the content still less in the clear water of being discharged.
The present invention in a preferred example may be further configured to: the baffle plate is divided into a left unit plate and a right unit plate by the partition plate, one side of each unit plate is adjacent to the partition plate, the side is the highest side, and the side, far away from the partition plate, of each unit plate is the lowest side.
Through adopting above-mentioned technical scheme, because there is little part deposit to fall into the upside of division board easily, set the division board into two inclined unit boards, make the deposit that falls into the division board upside can slide into the precipitation board downside.
The present invention in a preferred example may be further configured to: the heights of the stirring blades arranged on two adjacent stirring shafts are different.
Through adopting above-mentioned technical scheme, make adjacent epaxial stirring paddle leaf of stirring crisscross each other, can make demulsifier and flocculating agent more abundant mix with industrial waste water when the stirring, improve the effect of reaction.
In summary, the invention includes at least one of the following beneficial technical effects:
1. when the industrial wastewater is treated, the standing waiting time is reduced, the industrial wastewater can be continuously treated, the frequency of discharging the industrial wastewater containing precipitates is reduced, and the treatment speed of the industrial wastewater is improved;
2. can be well accommodated and precipitated, and is convenient to discharge through a sewage discharge pipe.
Drawings
Fig. 1 is a schematic structural diagram of the present embodiment.
FIG. 2 is a schematic view of the mixer housing with portions of the side walls hidden.
In the figure, 1, a stirring box; 11. a partition plate; 12. a left cell chamber; 13. a right cell chamber; 2. a water inlet pipe; 21. a water outlet pipe; 22. an air inlet pipe; 23. an air pump; 24. a blow-off pipe; 3. a base plate; 31. a through hole; 4. installing edges; 41. a stirring shaft; 42. a stirring paddle; 43. a stirring gear; 44. a stirring motor; 45. a drive gear; 5. a barrier plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The invention discloses a demulsification process method of emulsion, which comprises four steps,
s1, pouring the industrial wastewater into a wastewater treatment device;
s2, adding a demulsifier and a flocculant into the wastewater treatment device; the demulsifier can destroy the emulsified liquid structure in the industrial wastewater to separate the emulsified liquid structure into an oil phase and a water phase, and then under the action of the flocculant, the oil phase is flocculated and precipitated, thereby being convenient for people to separate the industrial wastewater.
S3, stirring the industrial wastewater in the wastewater treatment device, and layering the industrial wastewater; through stirring waste water, can make demulsifier and flocculating agent more abundant react with industrial waste water, more thoroughly at the reaction time for the destroyed speed of emulsified form liquid in the industrial waste water, later make the industrial waste water layering, deposit and be located industrial waste water's downside, thereby be convenient for separate industrial waste water.
S4, respectively discharging the clear water on the upper layer and the sediment on the lower side of the industrial wastewater in the wastewater treatment device, and then respectively treating the separated clear water and sediment by workers.
Referring to fig. 1 and 2, the wastewater treatment apparatus includes a stirring tank 1 having a cubic shape. A vertically arranged partition plate 11 is fixedly installed in the stirring box 1, and the partition plate 11 is parallel to one of the vertical side surfaces of the stirring box 1. A gap is arranged between the lower side of the partition plate 11 and the bottom surface of the stirring box 1, and two ends of the partition plate 11 are fixedly connected with two opposite vertical side surfaces of the stirring box 1. The partition plate 11 divides the chamber inside the agitation tank 1 into a left unit chamber 12 and a right unit chamber 13. Two vertical side surfaces of the stirring box 1 parallel to the partition plate 11 are respectively connected with a water inlet pipe 2 and a water outlet pipe 21, wherein the water inlet pipe 2 is connected with the left unit cavity 12, and the water outlet pipe 21 is connected with the right unit cavity 13. The height of the water inlet pipe 2 is higher than that of the water outlet pipe 21, and the height of the water outlet pipe 21 is higher than that of the lower side edge of the partition plate 11. An air inlet pipe 22 is fixedly connected to the top surface of the stirring box 1, the air inlet pipe 22 is connected to one side, close to the water inlet pipe 2, of the partition plate 11, and an air pump 23 is connected to the other end of the air inlet pipe 22. Still fixed mounting has the bottom plate 3 of level setting in agitator tank 1, and the interval has the space between the bottom surface of bottom plate 3 and agitator tank 1, has seted up a plurality of through-hole 31 on the bottom plate 3. The vertical side wall of the stirring box 1 is connected with a sewage discharge pipe 24 in the upper sea, and the position where the sewage discharge pipe 24 is connected with the stirring box 1 is lower than the bottom plate 3.
Referring to fig. 1 and 2, a mounting flange 4 is integrally formed on a lower side of the partition plate 11, and a stirring device including a stirring shaft 41 is mounted on the mounting flange 4. Three bearings are fixedly installed on the bottom surface of the installation edge 4, a vertical stirring shaft 41 is fixedly installed in each bearing, and the distance between every two adjacent stirring shafts 41 is equal. The lengths of the two stirring shafts 41 at the edges are slightly longer than the length of the stirring shaft 41 at the middle. Stirring blades 42 are fixedly arranged on the lower ends of the stirring shafts 41, stirring gears 43 are fixedly arranged on the upper ends of the stirring shafts 41, and the stirring gears 43 on two adjacent stirring shafts 41 are meshed with each other. A stirring motor 44 is fixedly installed on the top surface of the stirring box 1, an output shaft of the stirring motor 44 penetrates into the stirring box 1, a driving gear 45 is fixedly installed on the output shaft of the stirring motor 44, and the driving gear 45 is meshed with one stirring gear 43 of the three stirring gears 43.
Referring to fig. 1 and 2, a blocking plate 5 is fixedly mounted on the mounting edge 4, and the blocking plate 5 is divided into two unit plates, which are respectively located at two sides of the partition plate 11. One side of the unit plate is fixedly connected with the mounting edge 4, and the side of the unit plate far away from the barrier plate 5 is lower than the mounting edge 4.
When in use, the industrial wastewater is discharged into the left unit chamber 12 through the water inlet pipe 2, and the liquid level in the left unit chamber 12 and the right unit chamber 13 is the same because the bottoms of the left unit chamber 12 and the right unit chamber 13 are communicated. Fixed mounting has agitating unit on the installation limit 4 of division board 11 downside, through injecting demulsifier and flocculating agent into agitator tank 1 after, stirs the industrial waste water in agitator tank 1 through (mixing) shaft 41, and new industrial waste water is poured into through inlet tube 2 to agitator tank 1 constantly when stirring. Under the action of the demulsifier and the flocculant, the emulsion is divided into an oil phase and a water phase, and the oil phase is coagulated into a precipitate. The rotating speed of the stirring motor 44 is adjusted to slowly rotate, so that the sediment at the bottom of the stirring box 1 is not easy to be lifted up during stirring under the action of the barrier plate 5, and the sediment content in the discharged clean water at the water outlet pipe 21 is less; and the sediment is stirred well, so that the sediment is not easy to accumulate and close the through hole 31 and can more easily fall into the lower side of the bottom plate 3 through the through hole 31. After the industrial wastewater is continuously injected into the left unit chamber 12, the industrial wastewater level in the right unit chamber 13 is higher and higher, and the liquid on the upper side of the industrial wastewater in the right unit chamber 13 is clear liquid because the flocculated precipitate sinks at the bottom of the stirring tank 1. When the liquid level in the right unit chamber 13 is higher than the water outlet pipe 21, the liquid in the stirring tank 1 is discharged from the water outlet pipe 21. When the industrial wastewater is treated, the standing waiting time is reduced, the industrial wastewater can be continuously treated, the frequency of discharging the industrial wastewater containing precipitates is reduced, and the treatment speed of the industrial wastewater is improved. After the industrial wastewater after a period of time is treated, the water inlet pipe 2 is closed, the stirring shaft 41 stops working, the air pump 23 is opened, air is injected into the left unit cavity 12, the liquid level in the right unit cavity 13 rises, and when the liquid level in the right unit cavity 13 rises to a position adjacent to the water outlet pipe 21, the clear water on the upper layer in the wastewater is well discharged. Finally, the air pump 23 is closed, and the sewage discharge pipe 24 and the water inlet pipe 2 are opened, so that the residual industrial wastewater containing the precipitate is discharged, and the efficiency of wastewater treatment is effectively improved.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (8)
1. A demulsification process method of emulsion is characterized by comprising the following steps:
s1, pouring the industrial wastewater into a wastewater treatment device;
s2, adding a demulsifier and a flocculant into the wastewater treatment device;
s3, stirring the industrial wastewater in the wastewater treatment device, and layering the industrial wastewater;
s4, discharging the clear water on the upper layer of the industrial wastewater and the sediment on the lower side in the wastewater treatment device respectively.
2. The emulsion breaking process method of claim 1, which is characterized in that: the wastewater treatment device comprises a stirring box (1), a vertically arranged partition plate (11) is fixedly arranged in the stirring box (1), the partition plate (11) divides the cavity on the inner side of the stirring box (1) into a left unit cavity (12) and a right unit cavity (13), a gap is arranged between the lower side edge of the partition plate (11) and the bottom surface on the inner side of the stirring box (1), a stirring device is rotatably arranged between the lower side edge of the partition plate (11) and the bottom surface of the stirring box (1), the stirring device comprises a stirring shaft (41) vertical to the bottom surface of the stirring box (1), stirring blades (42) fixedly arranged on the stirring shaft (41) and a stirring motor (44) driving the stirring shaft (41) to rotate, a water inlet pipe (2), a water outlet pipe (21) and a sewage discharge pipe (24) are respectively connected to the side wall of the stirring box (1), the positions of the water inlet pipe (2) and the water outlet pipe (21) connected with the stirring box (1) are, and is higher than the lower side edge of the partition board (11), the height of the water inlet pipe (2) is higher than that of the water outlet pipe (21), and the sewage discharge pipe (24) is fixedly connected at the lower end of the stirring box (1).
3. The emulsion breaking process method of claim 2, which is characterized in that: the lateral wall of agitator tank (1) on fixedly connected with intake pipe (22), the other end and air pump (23) of intake pipe (22) are connected, the position that intake pipe (22) and agitator tank (1) are connected is located division board (11) one side that is close to inlet tube (2), and the position that intake pipe (22) and agitator tank (1) are connected is higher than the position that inlet tube (2) and agitator tank (1) are connected.
4. The emulsion breaking process method of claim 3, which is characterized in that: the stirring device comprises at least two stirring shafts (41), stirring blades (42) are installed on each stirring shaft (41), stirring gears (43) are fixedly installed on the stirring shafts (41), the stirring gears (43) on the two adjacent stirring shafts (41) are meshed with each other, a driving gear (45) is fixedly connected to an output shaft of a stirring motor (44), and the driving gear (45) is meshed with the stirring gear (43) on one stirring shaft (41).
5. The emulsion breaking process method of claim 4, which is characterized in that: stirring box (1) internal fixed mounting have bottom plate (3), there is the space at the interval between the bottom surface of bottom plate (3) and stirring box (1), through-hole (31) have been seted up on bottom plate (3), the position that blow off pipe (24) and stirring box (1) are connected is located bottom plate (3) downside.
6. The emulsion breaking process method of claim 5, which is characterized in that: the side edge of division board (11) fixed mounting have baffler (5), all separate the space between the inside wall that is on a parallel with side and agitator tank (1) of division board (11) in baffler (5), projection (41) and stirring paddle (42) on agitator tank (1) bottom surface is located the projection of baffler (5) on agitator tank (1) bottom surface.
7. The emulsion breaking process method of claim 6, which is characterized in that: the blocking plate (5) is divided into a left unit plate and a right unit plate by the partition plate (11), one side of each unit plate is adjacent to the partition plate (11), the side edge is the highest edge, and the side edge of each unit plate, which is far away from the partition plate (11), is the lowest edge.
8. The emulsion breaking process method of claim 4, which is characterized in that: the heights of the stirring blades (42) arranged on the two adjacent stirring shafts (41) are different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010063151.7A CN111137948A (en) | 2020-01-19 | 2020-01-19 | Emulsion breaking process method for emulsion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010063151.7A CN111137948A (en) | 2020-01-19 | 2020-01-19 | Emulsion breaking process method for emulsion |
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| CN111137948A true CN111137948A (en) | 2020-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010063151.7A Pending CN111137948A (en) | 2020-01-19 | 2020-01-19 | Emulsion breaking process method for emulsion |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116715332A (en) * | 2023-08-09 | 2023-09-08 | 沾化滨博化工有限公司 | Intelligent treatment equipment for chemical desulfurization waste liquid |
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| CN104261617A (en) * | 2014-09-18 | 2015-01-07 | 南京理工大学 | Treatment method of waste emulsion |
| CN206027167U (en) * | 2016-09-05 | 2017-03-22 | 苏州宝典环保科技有限公司 | Sedimentation tank |
| CN206108967U (en) * | 2016-10-22 | 2017-04-19 | 台州市环源环保工程有限公司 | Air flotation device |
| CN109399844A (en) * | 2018-12-24 | 2019-03-01 | 湖南钜晟环保科技工程有限公司 | A kind of efficient flocculation integrated system |
| CN109665608A (en) * | 2019-02-27 | 2019-04-23 | 连云港大禹水处理工程有限公司 | A kind of air lift stirring-type high dense settling pond and defecation method |
| CN208949032U (en) * | 2018-09-20 | 2019-06-07 | 承德石油高等专科学校 | Blowdown apparatus is used in a kind of processing of chemical engineering sewage |
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2020
- 2020-01-19 CN CN202010063151.7A patent/CN111137948A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104261617A (en) * | 2014-09-18 | 2015-01-07 | 南京理工大学 | Treatment method of waste emulsion |
| CN206027167U (en) * | 2016-09-05 | 2017-03-22 | 苏州宝典环保科技有限公司 | Sedimentation tank |
| CN206108967U (en) * | 2016-10-22 | 2017-04-19 | 台州市环源环保工程有限公司 | Air flotation device |
| CN208949032U (en) * | 2018-09-20 | 2019-06-07 | 承德石油高等专科学校 | Blowdown apparatus is used in a kind of processing of chemical engineering sewage |
| CN109399844A (en) * | 2018-12-24 | 2019-03-01 | 湖南钜晟环保科技工程有限公司 | A kind of efficient flocculation integrated system |
| CN109665608A (en) * | 2019-02-27 | 2019-04-23 | 连云港大禹水处理工程有限公司 | A kind of air lift stirring-type high dense settling pond and defecation method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116715332A (en) * | 2023-08-09 | 2023-09-08 | 沾化滨博化工有限公司 | Intelligent treatment equipment for chemical desulfurization waste liquid |
| CN116715332B (en) * | 2023-08-09 | 2023-10-20 | 沾化滨博化工有限公司 | Intelligent treatment equipment for chemical desulfurization waste liquid |
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Application publication date: 20200512 |
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