CN218893516U - Waste lye treatment system for improving operation rate of sulfur-containing waste lye device - Google Patents
Waste lye treatment system for improving operation rate of sulfur-containing waste lye device Download PDFInfo
- Publication number
- CN218893516U CN218893516U CN202223240718.7U CN202223240718U CN218893516U CN 218893516 U CN218893516 U CN 218893516U CN 202223240718 U CN202223240718 U CN 202223240718U CN 218893516 U CN218893516 U CN 218893516U
- Authority
- CN
- China
- Prior art keywords
- waste lye
- tank
- proportioning
- lye
- acid injection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The utility model belongs to the technical field of chemical industry, and relates to a waste lye treatment system for improving the operation rate of a sulfur-containing waste lye device, which comprises a waste lye treatment device, wherein a waste lye inlet end of the waste lye treatment device is provided with a feeding buffer proportioning device, a waste lye outlet end of the waste lye treatment device is provided with a discharging buffer proportioning device, the feeding buffer proportioning device comprises a proportioning tank which is respectively connected with a lye input pipe, an industrial water input pipe and a waste lye input pipe, the proportioning tank is connected with the waste lye treatment device, the discharging buffer proportioning device comprises a discharging adjustment tank group which is respectively connected with an acid injection system and the waste lye treatment device, and the discharging adjustment tank group is connected with a liquid outlet pipeline. The effects of optimizing the reaction efficiency of the oxidation reactor, improving the operation rate of the sulfur-containing waste lye device, ensuring the effluent index, prolonging the service life of equipment and reducing the discharge flow of the circulating water pond are achieved.
Description
Technical Field
The utility model belongs to the technical field of chemical industry, relates to a waste lye treatment system, and particularly relates to a waste lye treatment system for improving the operation rate of a sulfur-containing waste lye device.
Background
The Oleflex propane dehydrogenation process of the United states world Wide oil company (UOP LLC) is a moving bed catalytic process for the selective dehydrogenation of paraffins to the corresponding mono-olefins. The process is to convert part of propane into propylene in the presence of catalyst at 600-650 deg.c.
Because of high reaction temperature, a certain amount of sulfur-containing substances are added in the reaction process to reduce side reaction generation and equipment corrosion, so that the cracked product gas contains trace hydrogen sulfide and sulfur dioxide, and the sulfur compounds need to be neutralized and removed by alkali liquor (sodium hydroxide solution) in the subsequent working procedure.
The neutralized waste alkali liquor contains sodium sulfide (Na 2S), sodium hydrosulfide (NaHS) and the like, and the COD (chemical oxygen demand) reaches more than 30 ten thousand ppm, so that the waste alkali liquor cannot be directly discharged into a sewage pipe network, and the waste alkali liquor is discharged after being treated.
Publication No. CN103771612A discloses a method for treating waste lye in propylene production, comprising the following steps: (1) Removing oil by air floatation, and removing trace light oil entrained in the waste alkali liquor; (2) Removing sodium hydrosulfide, adding 25-60 wt% sodium hydroxide solution into the waste alkali solution to completely convert the sodium hydrosulfide in the waste alkali solution into sodium sulfide; (3) Wet oxidation treatment, namely removing waste alkali liquid of sodium hydrosulfide for wet oxidation treatment; (4) And (3) regulating the alkali concentration, adding solid sodium hydroxide into the waste alkali solution subjected to wet oxidation treatment, controlling the temperature to be 40-120 ℃, recovering precipitated sodium sulfate, and recycling the generated high-concentration sodium hydroxide solution to the alkaline washing tower at the step (2) and/or upstream.
The applicant has put 45 ten thousand tons/year propane dehydrogenation sulfur-containing lye treatment apparatus into service in 2020. Along with the increasing importance of the national environmental protection, the emission standards of wastewater and tail gas of enterprises are also higher. The existing propane dehydrogenation sulfur-containing waste alkali liquid treatment device has lower operation rate and can not respond well to the national environmental protection requirements.
Disclosure of Invention
The utility model aims at solving the problems and provides a waste lye treatment system for improving the operation rate of a sulfur-containing waste lye device.
The utility model creatively provides a waste lye treatment system for improving the operation rate of a sulfur-containing waste lye device, which comprises a waste lye treatment device, wherein a waste lye inlet end of the waste lye treatment device is provided with a feeding buffer proportioning device, a waste lye outlet end of the waste lye treatment device is provided with a discharging buffer proportioning device, the feeding buffer proportioning device comprises a proportioning tank which is respectively connected with a lye input pipe, an industrial water input pipe and a waste lye input pipe, the proportioning tank is connected with the waste lye treatment device, the discharging buffer proportioning device comprises a discharging adjustment tank group which is respectively connected with an acid injection system and the waste lye treatment device, and the discharging adjustment tank group is connected with a liquid outlet pipeline.
And a feeding buffer proportioning device is added at the inlet end of the waste lye treatment device and is used for adjusting the condition that each component of the waste lye inlet is higher. The material components entering the oxidation reactor are in a relatively stable state, so that the effects of optimizing the reaction efficiency of the oxidation reactor, ensuring the effluent index, prolonging the service life of equipment and the like are achieved.
And a discharging buffer adjusting device is additionally arranged at the outlet end and is used for solving the problem that the pH value of the treated sulfur-containing waste lye is higher, reducing the water supplementing amount of the circulating water and reducing the discharge flow of the circulating water pool. Meanwhile, the device has the functions of waste lye buffer after treatment, unqualified liquor buffer, overhauling external liquid discharge buffer and the like.
In the above-mentioned waste lye treatment system for increasing the operation rate of the sulfur-containing waste lye device, the discharge adjusting tank set is connected with the circulating pump through a circulating pipeline to form a circulating loop.
The acid and the alkali in the discharge adjustment tank group are fully mixed to reach a stable pH value.
In the above-mentioned waste lye treatment system for improving the operation rate of the sulfur-containing waste lye device, the acid injection pump of the acid injection system can calculate the actual injection amount of sulfuric acid according to the feedback value and the set value of the pH meter, and the automatic injection is realized, specifically as follows:
the acid injection system comprises an acid injection tank and an acid injection pump connected with the acid injection tank, and the acid injection pump is in signal connection with a pH meter arranged on a circulating pipeline.
In the above-mentioned waste lye treatment system for improving the operation rate of the sulfur-containing waste lye device, the acid injection pump of the acid injection system can also realize automatic injection according to the set injection amount and injection time, and the concrete steps are as follows:
the acid injection system comprises an acid injection tank and an acid injection pump connected with the acid injection tank, and the acid injection pump is connected with an automatic instrument control system.
In the above-mentioned waste lye treatment system for improving the operation rate of the sulfur-containing waste lye device, the acid injection pump of the acid injection system can also be used for manually injecting according to the set injection amount and injection time.
In the above-mentioned waste lye treatment system for improving the operation rate of the sulfur-containing waste lye device, the acid injection system comprises an acid injection tank and an acid injection pump connected with the acid injection tank, the acid injection tank is provided with a liquid level indication interlocking alarm device with high alarm interlocking and low alarm interlocking, and the liquid level indication interlocking alarm device is connected with an acid delivery pump positioned at the liquid inlet end of the acid injection tank.
In the above-mentioned waste lye treatment system for increasing the operation rate of the sulfur-containing waste lye device, the discharge adjusting tank group comprises more than two discharge adjusting tanks connected in parallel between the waste lye treatment device and the liquid outlet pipeline, and provides larger treatment capacity.
In the above-mentioned waste lye treatment system for increasing the operation rate of the sulfur-containing waste lye device, the circulation pipeline is used for connecting the bottom spraying mechanism in the discharge adjusting tank to one end of the liquid input to the discharge adjusting tank. Ensures the full mixing of the circulating liquid and stabilizes the acid-base property and the components of the discharged material.
In the above-mentioned waste lye treatment system for improving the operation rate of the sulfur-containing waste lye device, the liquid outlet pipeline is respectively connected with an outer discharge pipe and a recovery pipe, and the recovery pipe is connected with the proportioning tank. The waste alkali liquor which does not reach the standard can be recycled and reprocessed.
In the above-mentioned waste lye treatment system for improving the operation rate of the sulfur-containing waste lye device, the lye input pipe is connected with the proportioning tank through the proportioning pump, the waste lye input pipe is connected with the proportioning tank through the delivery pump, and the industrial water input pipe is connected with the proportioning tank through the flow control valve.
In the above-mentioned waste lye treatment system for increasing the operation rate of the sulfur-containing waste lye device, the lye input pipe is located at the downstream end of the proportioning pump, the waste lye input pipe is located at the downstream end of the delivery pump, and the industrial water input pipe is located at the downstream end of the flow control valve, and the flow meters are respectively connected with the controller by signals, and the controller is connected with the proportioning pump and the flow control valve by signals. The flow of each alkali liquor and industrial water can be automatically regulated, so that the flow ratio is kept stable, and the pretreatment quality is ensured.
Compared with the prior art, the utility model has the advantages that:
1) The utility model adds the feeding buffer proportioning device at the inlet end of the waste lye treatment device, which is used for adjusting the condition that each component of the waste lye inlet is higher, so that the material components entering the oxidation reactor are in a relatively stable state, thereby achieving the effects of optimizing the reaction efficiency of the oxidation reactor, improving the operation rate of the sulfur-containing waste lye device, ensuring the water outlet index and prolonging the service life of the equipment. And a discharging buffer adjusting device is added at the outlet end for solving the problem of higher pH value of the treated sulfur-containing waste lye, and the water supplementing amount of the circulating water is reduced and the discharge amount of the circulating water pool is reduced under the condition that the pH value meets the treatment requirement.
2) The utility model provides a system with automation degree, and ensures the treatment capacity and stability of waste liquid.
Drawings
FIG. 1 is a block diagram of a waste lye treatment system provided by the utility model.
Fig. 2 is a flow chart of a feeding buffer proportioning device provided by the utility model.
FIG. 3 is a flow chart of a waste lye treatment device provided by the utility model.
Fig. 4 is a flow chart of a discharging buffer adjusting device and an acid injection system provided by the utility model.
In the figure: the waste lye treatment device 1, the feeding buffer proportioning device 2, the discharging buffer adjusting device 3, the lye input pipe 4, the industrial water input pipe 5, the proportioning tank 6, the acid injection system 7, the acid injection tank 71, the acid injection pump 72, the pH meter 73, the automatic instrument control system 74, the liquid level indication interlocking alarm device 75, the discharging adjusting tank group 8, the discharging adjusting tank 81, the bottom spraying mechanism 82, the liquid outlet pipeline 9, the circulating pipeline 10, the circulating pump 11, the recovery pipe 12, the proportioning pump 13, the conveying pump 14, the flow control valve 15, the outer exhaust pipe 17, the waste lye input pipe 18, the first conveying pipe 19, the reactor 20, the washing tower 21, the second conveying pipe 22 and the air compressor 23.
Detailed Description
Further illustrated by the following specific examples;
as shown in figure 1, the waste lye treatment system for improving the operation rate of the sulfur-containing waste lye device sequentially comprises a feeding buffer proportioning device 2, a waste lye treatment device 1 and a discharging buffer adjusting device 3.
The waste lye inlet end of the waste lye treatment device 1 is provided with a feeding buffer proportioning device 2, and the waste lye outlet end of the waste lye treatment device 1 is provided with a discharging buffer adjusting device 3. The acid injection system 7 is connected with the discharging buffer adjusting device 3.
As shown in fig. 2, the feeding buffer proportioning device 2 comprises a proportioning tank 6, wherein an alkali liquor input pipe 4, an industrial water input pipe 5 and a waste alkali liquor input pipe 18 are respectively arranged at the inlet end of the proportioning tank 6, and the output end of the proportioning tank 6 is connected with the waste alkali liquor treatment device through a first conveying pipe 19. The alkali liquor input pipe 4 is connected with an alkali liquor storage tank, the industrial water input pipe 5 is connected with an industrial water outer pipe, and the waste alkali liquor input pipe 18 is connected with a waste alkali liquor storage tank.
The alkali liquor input pipe 4 is connected with the proportioning tank 6 through the proportioning pump 13, the waste alkali liquor input pipe 18 is connected with the proportioning tank 6 through the delivery pump 14, and the industrial water input pipe 5 is connected with the proportioning tank 6 through the flow control valve 15.
The alkali liquor input pipe 4 is positioned at the downstream end of the proportioning pump 13, the waste alkali liquor input pipe 18 is positioned at the downstream end of the delivery pump 14 and the industrial water input pipe 5 is positioned at the downstream end of the flow control valve 15, and flow meters 16 are respectively arranged, wherein each flow meter 16 is in signal connection with a controller, and the controller is in signal connection with the proportioning pump 13 and the flow control valve 15. The flow rates of the proportioning pump 13 and the flow control valve 15 are regulated by the controller, so that the flow rates of the alkali liquor and the industrial water are controlled according to the liquid inlet amount of the waste alkali liquor.
As shown in FIG. 3, a lye processing apparatus 1 is provided, wherein the lye processing apparatus 1 comprises a reactor 20 connected to a first transfer pipe 19, an air compressor 23 for supplying oxygen or air to the reactor 20, and a scrubber 21 connected to an outlet of the reactor 20. The washing tower 21 is connected with a discharging buffer adjusting device through a second conveying pipe 22.
As shown in fig. 4, a discharging buffer adjusting device 3 and an acid injection system 7 are shown, and referring to fig. 2 and 4, the discharging buffer adjusting device 3 includes a discharging adjusting tank set 8 respectively connected with the acid injection system 7 and the waste lye processing device 1, the discharging adjusting tank set 8 is connected with a liquid outlet pipeline 9, the liquid outlet pipeline 9 is respectively connected with an outer drain pipe 11 and a recovery pipe 12, and the recovery pipe 12 is connected with a proportioning tank 6 for recovering waste lye.
The discharge adjusting tank group 8 comprises two discharge adjusting tanks 81 which are connected in parallel between the waste lye treatment device 1 and the liquid outlet pipeline 9. And the two discharge adjusting tank groups 8 are connected with a circulating pump 11 through a circulating pipeline 10 to form a circulating loop. The circulation pump 11 is connected in parallel with the circulation line 10. The circulating pipeline 10 ensures the full mixing of the circulating liquid, so that the acid-base property and the components of the discharged material are stable.
The discharge adjusting tank 81 adopts a horizontal tank body, and one end of the circulating pipeline 10 for inputting liquid into the discharge adjusting tank 81 is connected with a bottom spraying mechanism 82 in the discharge adjusting tank 81. The bottom spraying mechanism 82 inputs circulating liquid from the bottom, so that the purpose of full mixing is achieved, and the mixing efficiency is improved.
The acid injection system 7 includes an acid injection tank 71 and an acid injection pump 72 connected to the acid injection tank 71.
In connection with fig. 1 and 4, in one embodiment, the acid injection system 7 takes the form of an automatic injection. The acid injection pump 72 is in signal connection with a pH meter 73 arranged on the circulation pipeline 10. The acid injection pump 72 of the acid injection system 7 can calculate the actual injection amount of sulfuric acid according to the feedback value and the set value of the pH meter.
Referring to fig. 1 and 4, in one embodiment, the acid injection system 7 includes an acid injection tank 71 and an acid injection pump 72 coupled to the acid injection tank 71, the acid injection pump 72 being coupled to an automated meter control system 74. The acid injection pump 72 of the acid injection system 7 can also automatically inject according to the set injection amount and injection time. The running state of the acid injection system 7 can be monitored in real time by adopting RS485 MODBUS RTU communication between the acid injection system 7 and the automatic instrument control system 74, namely the DCS.
The acid injection tank 71 is provided with a liquid level indicating interlocking alarm device 75 having a high alarm interlocking and a low alarm interlocking, and the liquid level indicating interlocking alarm device 75 is connected with an acid delivery pump (not shown in the figure) positioned at the liquid inlet end 76 of the acid injection tank 71.
The working flow of the utility model is as follows:
the components of the neutralized sulfur-containing waste lye are shown in the following table,
the sulfur-containing waste lye is input into the feeding buffer proportioning device 2 through the waste lye input pipe 18 and is mixed with 10% NaOH solution filled in the lye input pipe 4 and industrial water or desalted water filled in the industrial water input pipe 5 in the proportioning tank 6, so that the material components entering the reactor 20 are in a relatively stable state, and the effects of optimizing the reaction efficiency of the oxidation reactor, ensuring the effluent index, prolonging the service life of equipment and the like are achieved.
Waste lye in the proportioning tank 6 is sent to the waste lye treatment device 1 through a first conveying pipe 19, enters a washing tower 21 to be washed by desalted water after oxidation reaction of a reactor 20, is sent to a discharge adjusting tank 81 of the discharge buffer adjusting device 3 through a second conveying pipe 22, and is filled with H through an acid filling system 7 2 SO 4 The solution is subjected to pH adjustment on the sulfur-containing waste lye in the discharge adjustment tank 81 under the circulation mixing of the circulation pipeline 10 and the circulation pump 11, and can simultaneously have the functions of waste lye buffer after treatment, unqualified liquor buffer, overhaul external liquid discharge buffer and the like. The treated sulfur-containing waste lye is discharged through the outer discharge pipe 17, the components of which are shown in the following table,
| component (A) | Analysis data | Index (I) |
| pH value of | ≤10 | 6-12 |
| COD | ≤350mg/l | ≤400mg/l |
| Sulfur content | ≤30mg/l | ≤30mg/l |
The treated sulfur-containing waste lye meets the national standard, the efficiency of the treatment process is high, the reaction efficiency of the oxidation reactor is optimized, and the operation rate of the sulfur-containing waste lye device is improved.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways than as described herein, and therefore the present utility model is not limited to the specific embodiments disclosed below.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.
Although terms of the waste lye treatment apparatus 1, the feeding buffer proportioning apparatus 2, the discharge buffer adjustment apparatus 3, the lye input pipe 4, the industrial water input pipe 5, the proportioning tank 6, the acid injection system 7, the acid injection tank 71, the acid injection pump 72, the pH meter 73, the automatic meter control system 74, the liquid level indication interlocking alarm apparatus 75, the discharge adjustment tank group 8, the discharge adjustment tank 81, the bottom spray mechanism 82, the liquid outlet pipe 9, the circulation pipe 10, the circulation pump 11, the recovery pipe 12, the proportioning pump 13, the transfer pump 14, the flow control valve 15, the discharge pipe 17, the waste lye input pipe 18 are used more herein. These terms are only used to more conveniently describe and explain the nature of the utility model and should be construed in a manner consistent with their spirit and scope.
Claims (10)
1. The utility model provides an improve waste lye processing system who contains sulphur waste lye device operation rate, includes waste lye processing apparatus (1), its characterized in that, waste lye inlet end of waste lye processing apparatus (1) sets up feeding buffering proportioning device (2), waste lye outlet end of waste lye processing apparatus (1) sets up ejection of compact buffering proportioning device (3), feeding buffering proportioning device (2) are including proportioning tank (6) of connecting lye input tube (4), industry water input tube (5) and waste lye input tube (18) respectively, and proportioning tank (6) connect waste lye processing apparatus (1), ejection of compact buffering adjusting device (3) are including connecting ejection of compact adjusting tank set (8) of annotating sour system (7) and waste lye processing apparatus (1) respectively, ejection of compact adjusting tank set (8) are connected out liquid pipeline (9).
2. A spent lye treatment system for increasing the operating rate of a sulfur-containing spent lye plant as set forth in claim 1, wherein: the discharge adjusting tank group (8) is connected with a circulating pump (11) through a circulating pipeline (10) to form a circulating loop.
3. A spent lye treatment system for increasing the operating rate of a sulfur-containing spent lye plant as set forth in claim 2, wherein: the acid injection system (7) comprises an acid injection tank (71) and an acid injection pump (72) connected with the acid injection tank (71), wherein the acid injection pump (72) is in signal connection with a pH meter (73) arranged on the circulating pipeline (10).
4. A spent lye treatment system for increasing the operating rate of a sulfur-containing spent lye plant as set forth in claim 1, wherein: the acid injection system (7) comprises an acid injection tank (71) and an acid injection pump (72) connected with the acid injection tank (71), and the acid injection pump (72) is connected with an automatic instrument control system (74).
5. A spent lye treatment system for increasing the operating rate of a sulfur-containing spent lye plant as set forth in claim 1, wherein: the acid injection system (7) comprises an acid injection tank (71) and an acid injection pump (72) connected with the acid injection tank (71), wherein the acid injection tank (71) is provided with a liquid level indication interlocking alarm device (75) with high alarm interlocking and low alarm interlocking, and the liquid level indication interlocking alarm device (75) is connected with an acid conveying pump positioned at a liquid inlet end (76) of the acid injection tank (71).
6. A spent lye treatment system for increasing the operating rate of a sulfur-containing spent lye plant as set forth in claim 2, wherein: the discharge adjusting tank group (8) comprises more than two discharge adjusting tanks (81) which are connected in parallel between the waste lye treatment device (1) and the liquid outlet pipeline (9).
7. A spent lye treatment system for increasing the operating rate of a sulfur-containing spent lye plant as defined in claim 6, wherein: the circulating pipeline (10) is used for connecting a bottom spraying mechanism (82) in the discharge adjusting tank (81) at one end for inputting liquid into the discharge adjusting tank (81).
8. A spent lye treatment system for increasing the operating rate of a sulfur-containing spent lye plant as set forth in claim 1 or 6, wherein: the liquid outlet pipeline (9) is respectively connected with an outer discharge pipe (17) and a recovery pipe (12), and the recovery pipe (12) is connected with the proportioning tank (6).
9. A spent lye treatment system for increasing the operating rate of a sulfur-containing spent lye plant as set forth in claim 1, wherein: the alkali liquor input pipe (4) is connected with the proportioning tank (6) through the proportioning pump (13), the waste alkali liquor input pipe (18) is connected with the proportioning tank (6) through the delivery pump (14), and the industrial water input pipe (5) is connected with the proportioning tank (6) through the flow control valve (15).
10. A spent lye treatment system for increasing the operating rate of a sulfur-containing spent lye plant as set forth in claim 9, wherein: the alkali liquor input pipe (4) is located at the downstream end of the proportioning pump (13), the waste alkali liquor input pipe (18) is located at the downstream end of the conveying pump (14) and the industrial water input pipe (5) is located at the downstream end of the flow control valve (15), flow meters (16) are respectively arranged at the downstream end of the industrial water input pipe, the flow meters (16) are connected with a controller through signals, and the controller is connected with the proportioning pump (13) and the flow control valve (15) through signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223240718.7U CN218893516U (en) | 2022-12-01 | 2022-12-01 | Waste lye treatment system for improving operation rate of sulfur-containing waste lye device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223240718.7U CN218893516U (en) | 2022-12-01 | 2022-12-01 | Waste lye treatment system for improving operation rate of sulfur-containing waste lye device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218893516U true CN218893516U (en) | 2023-04-21 |
Family
ID=86001797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223240718.7U Active CN218893516U (en) | 2022-12-01 | 2022-12-01 | Waste lye treatment system for improving operation rate of sulfur-containing waste lye device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218893516U (en) |
-
2022
- 2022-12-01 CN CN202223240718.7U patent/CN218893516U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108079762B (en) | Flue gas desulfurization system and method for flue gas desulfurization by using same | |
| CN102847423B (en) | Catalytic double-alkali desulphurization and dust removal process | |
| WO2022257589A1 (en) | High sulphate wastewater recycling treatment method and system | |
| CN209501361U (en) | Novel energy-conserving Complexing Iron desulphurization plant | |
| CN218893516U (en) | Waste lye treatment system for improving operation rate of sulfur-containing waste lye device | |
| CN108557978A (en) | Remove the ambient air oxidation equipment and method of sulfide in alkaline residue | |
| JP7119115B2 (en) | Acrolein reactor wastewater treatment method and apparatus | |
| CN202953965U (en) | Continuous decomposition device for pure phenol sodium sulfate | |
| CN102964220A (en) | Pure sodium phenolate sulfuric acid continuous decomposition technology and equipment thereof | |
| WO2022095420A1 (en) | Flue gas treatment system and flue gas treatment method | |
| CN216946957U (en) | Anaerobic fermentation device | |
| CN212269722U (en) | Device for synchronous desulfurization and decyanation of coal chemical gas-making sewage | |
| CN202430071U (en) | Device for desulfurizing and neutralizing caustic sludge of liquefied gas | |
| CN220005371U (en) | Comprehensive treatment device for caustic sludge | |
| CN211886206U (en) | Sulfur dioxide emission reduction device | |
| KR20150143521A (en) | Anaerobic treatment system and anaerobic treatment method | |
| CN209237691U (en) | Tail gas and subsequent acidic water treatment facilities when a kind of damage | |
| CN102515324A (en) | Method and device for treating acid mine wastewater | |
| CN202224051U (en) | Double-alkali desulfurizer with exterior tower circulation and independent oxidation | |
| CN113546510A (en) | Tail gas treatment system of sulfur recovery equipment | |
| CN220513832U (en) | Flue gas emission treatment system | |
| CN218131017U (en) | Wet desulphurization purification circulation system and iron-making blast furnace with same | |
| CN205556090U (en) | Recovery system of hydrogen chloride in production of vulcanization isobutene | |
| CN219314705U (en) | Recycling device for regenerated waste liquid of desalination tank | |
| CN217312707U (en) | Multi-tube water bed device for multi-stage flue gas desulfurization |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |