CN108821430A - A kind of hydrolysis acidification reaction tower - Google Patents
A kind of hydrolysis acidification reaction tower Download PDFInfo
- Publication number
- CN108821430A CN108821430A CN201810883783.0A CN201810883783A CN108821430A CN 108821430 A CN108821430 A CN 108821430A CN 201810883783 A CN201810883783 A CN 201810883783A CN 108821430 A CN108821430 A CN 108821430A
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- Prior art keywords
- water
- water distributor
- tower body
- reflux
- mixed liquor
- 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.)
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 18
- 230000007062 hydrolysis Effects 0.000 title claims abstract description 17
- 238000006460 hydrolysis reaction Methods 0.000 title claims abstract description 17
- 230000020477 pH reduction Effects 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 115
- 238000010992 reflux Methods 0.000 claims abstract description 27
- 241000555268 Dendroides Species 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 10
- 239000002351 wastewater Substances 0.000 abstract description 9
- 238000004134 energy conservation Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 231100000614 poison Toxicity 0.000 abstract description 3
- 230000007096 poisonous effect Effects 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract description 2
- 239000003381 stabilizer Substances 0.000 abstract description 2
- 238000002156 mixing Methods 0.000 description 11
- 239000010865 sewage Substances 0.000 description 9
- 239000010802 sludge Substances 0.000 description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000029087 digestion Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009280 upflow anaerobic sludge blanket technology Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/2866—Particular arrangements for anaerobic reactors
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a kind of hydrolysis acidification reaction towers, including tower body, proprietary water distributor is housed at the top of the tower body, it is connected to below water distributor with center vertical shaft, the tower body bottom is provided with water distributor, center vertical shaft is connected to water distributor, the tower body middle and upper part is equipped with mixed liquor return-flow system, system composition has annular water suction reflux unit, flow back main pipe, reflux pump and flowmeter, the annular water suction reflux unit is connected to by the main pipe that flows back with water distributor, reflux main pipe is internally provided with reflux pump, solid-liquid-gas three-phase separator is equipped with above the mixed liquor return-flow system, exhaust pipe is connected on solid-liquid-gas three-phase separator.The present invention can handle the poisonous and harmful waste water of middle low concentration, improve wastewater biodegradability, improve mixed effect, and energy conservation and environmental protection, water distribution is uniform, and water distribution pipeline system is avoided to block, and can concentration of wastewater in stabilizer, improve its anti impulsion load.
Description
Technical field
The present invention relates to technical field of sewage, specially a kind of hydrolysis acidification reaction tower.
Background technique
The anaerobic reactor for being currently used for sewage treatment is divided into two major classes, and one kind is tower reactor, another kind of for reaction
Pond.
Tower reactor, such as the tower anaerobic reactor of UASB, IC and EGSB possess compared with larger ratio of height to diameter, and principle is using micro-
Hydrolysis in bio anaerobic digestion reaction produces acid, methane phase overall process, is formed in inside reactor granular mud bed, largely goes
Organic pollutants are decontaminated, and improve Biodegradability of Wastewater.Liquid agitation mixed function in reactor is mainly using big
The biogas that amount generates drives water flow flowing to form stirring and mixing effect.If forming mixing effect by generating a large amount of biogas
Fruit, handled wastewater pollutants concentration need it is sufficiently high, therefore at present existing anaerobic reactor be only applicable to handle it is highly concentrated
Organic wastewater is spent, water treatment effect poisonous and harmful for middle low concentration is not good enough.
Another kind of is hydrolysis acidification reaction tank, and principle is that anaerobic digestion reaction is only controlled in hydrolysis and acidization,
It does not generate or only generates a small amount of biogas, also generated without granule sludge, main purpose is to improve the biodegradability of sewage, is reduced subsequent
Processing cost.Tower reactor is compared, defect is to take up a large area, and cost of investment is high, and can not generate granule sludge causes to live
Property sludge concentration is not high, and settleability is poor, and collecting methane is more difficult.
Summary of the invention
The purpose of the present invention is to provide a kind of hydrolysis acidification reaction towers, to solve installation mentioned above in the background art
The problem of defect.
To achieve the above object, the present invention provides the following technical solutions：A kind of hydrolysis acidification reaction tower, including tower body, institute
It states and proprietary water distributor is housed at the top of tower body, center vertical shaft, water distributor lower section and center are provided through on the center line of tower body
Vertical shaft connection, the water distributor are connected with water inlet pipe, and the tower body bottom is provided with water distributor, and center vertical shaft and water distributor connect
It is logical, variable diameter plug is installed, the tower body middle and upper part is equipped with mixed liquor return-flow system, mixed liquor return-flow system packet on the water distributor
It includes annular water suction reflux unit, reflux main pipe, reflux pump and flowmeter, mixed liquor return-flow system to be fixed with bracket, the ring
Shape water suction reflux unit is connected to by the main pipe that flows back with water distributor, is equipped with flowmeter on the main pipe that flows back, and flow back main pipe
It is internally provided with reflux pump, is equipped with solid-liquid-gas three-phase separator, solid-liquid-gas three-phase separator above the mixed liquor return-flow system
On be connected with exhaust pipe, water outlet catch basin is provided with above solid-liquid-gas three-phase separator, is discharged on catch basin and is connected with outlet pipe
Road is provided with mud line system, the tower on the position between the solid-liquid-gas three-phase separator and mixed liquor return-flow system
Base fabric water pipe is again provided with mud line system at top position.
It preferably, is hollow inside the center vertical shaft.
Preferably, the pipe-line system of the water distributor is uniformly covered with tower bottom in dendroid, is fixed with rack form.
Water enters water distributor by water inlet line, and water distributor is infused external sewage by center vertical shaft high speed using siphon principle
Enter tower bottom, by the accurate formula water distribution system of tower bottom, sewage is equably injected in tower, the pipe-line system of water distributor is in dendroid
Uniformly it is covered with tower bottom, is fixed with rack form.Speed is very high when water flow passes through water distributor, can form strong hydraulic mixing and make
With, meanwhile, the end of water distribution system is equipped with variable diameter plug, and high-velocity flow passes through variable diameter plug, so that surrounding is formed negative pressure, in water distribution mouth week
The water body sucking enclosed is internal, and formation annular is circulating fluidized, enhances the effect of hydraulic mixing.
Preferably, collection moisture slot is provided on the water outlet catch basin, collection moisture slot is arranged in parallel, separately sets one and catchments master
Slot, perpendicular to collection moisture slot, the major trough that catchments is connected to outlet conduit.
The gas that solid-liquid-gas three-phase separator is collected is discharged by exhaust pipe, and solid matter is then gathered in separator inclined plate face
On, gradually sink, remaining clear water then continues to rise to water outlet catch basin, by the major trough that catchments after water outlet catch basin collection water outlet
Outlet conduit discharge.
Preferably, the mud line system is square cyclic annular pipeline, mud line system with external sludge pump
It is connected, periodically inhales mud.
Compared with prior art, the beneficial effects of the invention are as follows：
1. compared with common tower anaerobic reactor, the invention can handle in the poisonous and harmful waste water of low concentration, improving waste water can give birth to
The property changed；
2. internal stirring is realized not against a large amount of biogas are generated, but in the way of the hydraulic mixing of high-velocity flow, muddy water is mixed
It is more preferable to close effect；
3. in the way of the hydraulic mixing of high-velocity flow, no power consumption, energy conservation and environmental protection；
4. accurate formula water distribution uniformity system, water distribution are uniform；
5. preventing water distribution pipeline system due to the impact of high-velocity flow and blocking；
6. inside forms granule sludge, activated sludge concentration and settling property are improved；
7. unique mixed liquor return-flow system can accurately control mud bed height, preferably control upflow velocity and realization muddy water point
From；
8. concentration of wastewater in mixed liquor return-flow system energy stabilizer, improves its anti impulsion load.
Detailed description of the invention
Fig. 1 is a kind of schematic cross-sectional view of hydrolysis acidification reaction tower of the present invention；
Fig. 2 is a kind of schematic cross-sectional view of hydrolysis acidification reaction tower another side of the present invention.
In figure：1, tower body；2, water distributor；3, center vertical shaft；4, water distributor；5, variable diameter plug；6, annular water suction reflux unit；
7, flow back main pipe；8, reflux pump；9, flowmeter；10, solid-liquid-gas three-phase separator；11, exhaust pipe；12, catch basin；13, it arranges
Mud pipe-line system；14, outlet conduit；15, water inlet line.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The present invention provides a kind of technical solution referring to FIG. 1-2,：A kind of hydrolysis acidification reaction tower, including tower body 1, it is described
Proprietary water distributor 2 is housed at the top of tower body 1, center vertical shaft 3 is provided through on the center line of tower body 1,2 lower section of water distributor is in
Heart vertical shaft 3 is connected to, and the water distributor 2 is connected with water inlet pipe 15, and 1 bottom of tower body is provided with water distributor 4, center vertical shaft 3 with
Water distributor 4 is connected to, and variable diameter plug 5 is equipped on the water distributor 4, and 1 middle and upper part of tower body is equipped with mixed liquor return-flow system, reflux
System plays the role of controlling mud bed height, realizes mud-water separation, and system composition has annular water suction reflux unit 6, reflux trunk
Pipe 7, reflux pump 8, flowmeter 9, system is fixed with bracket, and the annular water suction reflux unit 6 passes through reflux main pipe 7 and water distribution
Device 2 is connected to, and flowmeter is equipped on the main pipe 7 that flows back, and reflux main pipe 7 is internally provided with reflux pump 8, the mixed liquor reflux
It is equipped with solid-liquid-gas three-phase separator 10 above system, is connected with exhaust pipe 11, solid-liquid-gas three phase on solid-liquid-gas three-phase separator 10
It is provided with water outlet catch basin 12 above separator 10, is discharged on catch basin 12 and is connected with outlet conduit 14, the solid-liquid-gas three phase
Mud line system 13, the tower bottom water distributor upper position are provided on position between separator 10 and mixed liquor return-flow system
The place of setting is again provided with mud line system 13.
It is hollow inside the center vertical shaft 3.
The pipe-line system of the water distributor 4 is uniformly covered with tower bottom in dendroid, is fixed with rack form.
Water enters water distributor 2 by water inlet line 15, and external sewage is passed through center vertical shaft 3 using siphon principle by water distributor 2
High speed injection tower bottom equably injects sewage, the pipe-line system of water distributor 4 by the accurate formula water distribution system of tower bottom in tower
Uniformly it is covered with tower bottom in dendroid, is fixed with rack form.Speed is very high when water flow passes through water distributor 4, can form strong water
Power stirring action, meanwhile, the end of water distribution system is equipped with variable diameter plug 5, and high-velocity flow passes through variable diameter plug, and so that surrounding is formed negative pressure,
Water body around water distribution mouth is sucked inside, formation annular is circulating fluidized, enhances the effect of hydraulic mixing.
Collection moisture slot is provided on the water outlet catch basin 12, collection moisture slot is arranged in parallel, separately sets one and catchments major trough, vertically
In collection moisture slot, the major trough that catchments is connected to outlet conduit 14.
The gas that solid-liquid-gas three-phase separator 10 is collected is discharged by exhaust pipe 11, and it is oblique that solid matter is then gathered in separator
In plate face, gradually sink, remaining clear water then continues to rise to water outlet catch basin 12, and water outlet catch basin 12 passes through collection after collecting water outlet
Outlet conduit 14 in water major trough is discharged.
The mud line system 13 is square cyclic annular pipeline, mud line system 13 with external sludge pump phase
Even, mud is periodically inhaled.
Working principle：Water enters water distributor 2 by water inlet line 15, and water distributor 2 is passed through external sewage using siphon principle
Center vertical shaft 3 injects at a high speed tower bottom, and by the accurate formula water distribution system of tower bottom, sewage, water distribution pipeline are equably injected in tower
System is uniformly covered with tower bottom in dendroid, is fixed with rack form.Speed is very high when water flow passes through water distributor 4, can be formed strong
Hydraulic mixing effect, meanwhile, the end of water distribution system is equipped with variable diameter plug 5, and high-velocity flow passes through variable diameter plug, forms surrounding negative
Water body around water distribution mouth is sucked inside by pressure, and formation annular is circulating fluidized, enhances the effect of hydraulic mixing, unique mixed
Liquid return-flow system is closed, mud bed height can be accurately controlled, preferably control upflow velocity and realization mud-water separation.It is big not against generating
Biogas is measured to realize internal stirring, but in the way of the hydraulic mixing of high-velocity flow, muddy water mixed effect is more preferable, and utilizes height
The hydraulic mixing mode of fast water flow, no power consumption, energy conservation and environmental protection prevent the generation of water distribution pipeline system due to the impact of high-velocity flow
Blocking.The gas that the solid-liquid-gas three-phase separator 10 set above mixed liquor return-flow system is collected is discharged by exhaust pipe 11, solid-state
Substance is then gathered on separator inclined plate face, is gradually sunk, and remaining clear water then continues to rise to catch basin 12.
It is water outlet catch basin 12 above solid-liquid-gas three-phase separator 10, is discharged on catch basin 12 and several collection moisture slots are set,
It is arranged in parallel to collect moisture slot, separately sets one and catchments major trough, perpendicular to collection moisture slot, passes through the water outlet in the major trough that catchments after collecting water outlet
Pipeline 14 is discharged.
Two sets of mud line systems 13 are set in tower altogether, are square cyclic annular pipeline, wherein a set of be mounted on solid-liquid-gas three
Position between phase separator 10 and mixed liquor return-flow system, it is another set of to be mounted on 4 top position of tower bottom water distributor, with outside
Sludge pump is connected, and periodically inhales mud.
In description of the invention, it should be noted that the orientation of the instructions such as term "vertical", "upper", "lower", "horizontal" or
Person's positional relationship is orientation based on the figure or positional relationship, is merely for convenience of description of the present invention and simplification of the description,
Rather than the device or element of instruction or hint meaning must have a particular orientation, and are constructed and grasped with specific orientation
Make, therefore is not considered as limiting the invention.In addition, " first ", " second ", " third ", " the 4th " are only used for description mesh
, and should not be understood as indicating or implying relative importance.
In description of the invention, it is also necessary to explanation, unless otherwise specific regulation and limitation, term " setting ", " peace
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection, can be mechanical connection, is also possible to be electrically connected, can be and be directly connected to, and be also possible to be connected by intermediary, can
To be the connection inside two elements.For the ordinary skill in the art, can understand as the case may be above-mentioned
The concrete meaning of term in the present invention.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of hydrolysis acidification reaction tower, including tower body, proprietary water distributor is housed at the top of the tower body, on the center line of tower body
It is provided through center vertical shaft, is connected to below water distributor with center vertical shaft, the water distributor is connected with water inlet pipe, the tower body bottom
Portion is provided with water distributor, and center vertical shaft is connected to water distributor, and variable diameter plug is equipped on the water distributor, and the tower body middle and upper part is set
There is mixed liquor return-flow system, mixed liquor return-flow system includes annular water suction reflux unit, reflux main pipe, reflux pump and flow
Meter, mixed liquor return-flow system are fixed with bracket, and the annular water suction reflux unit is connected to by the main pipe that flows back with water distributor, are returned
Flowmeter is installed, reflux main pipe is internally provided with reflux pump, is equipped with above the mixed liquor return-flow system on stream main pipe
Solid-liquid-gas three-phase separator is connected with exhaust pipe on solid-liquid-gas three-phase separator, is provided with out above solid-liquid-gas three-phase separator
Water catch basin is discharged on catch basin and is connected with outlet conduit, between the solid-liquid-gas three-phase separator and mixed liquor return-flow system
Position on be provided with mud line system, the tower bottom water distributor is again provided with mud line system at top position.
2. a kind of hydrolysis acidification reaction tower according to claim 1, it is characterised in that：It is sky inside the center vertical shaft
The heart.
3. a kind of hydrolysis acidification reaction tower according to claim 1, it is characterised in that：The pipe-line system of the water distributor is in
Dendroid is uniformly covered with tower bottom, is fixed with rack form.
4. a kind of hydrolysis acidification reaction tower according to claim 1, it is characterised in that：It is provided on the water outlet catch basin
Collect moisture slot, collection moisture slot is arranged in parallel, separately sets one and catchments major trough, perpendicular to collection moisture slot, catchments major trough and outlet conduit connects
It is logical.
5. a kind of hydrolysis acidification reaction tower according to claim 1, it is characterised in that：The mud line system is positive
Square ring pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810883783.0A CN108821430A (en) | 2018-08-06 | 2018-08-06 | A kind of hydrolysis acidification reaction tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810883783.0A CN108821430A (en) | 2018-08-06 | 2018-08-06 | A kind of hydrolysis acidification reaction tower |
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| Publication Number | Publication Date |
|---|---|
| CN108821430A true CN108821430A (en) | 2018-11-16 |
Family
ID=64153624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810883783.0A Pending CN108821430A (en) | 2018-08-06 | 2018-08-06 | A kind of hydrolysis acidification reaction tower |
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| Country | Link |
|---|---|
| CN (1) | CN108821430A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110526395A (en) * | 2019-09-27 | 2019-12-03 | 浙江省环境工程有限公司 | Eddy flow anaerobic reactor for waste water treatment system |
| CN114314829A (en) * | 2022-01-11 | 2022-04-12 | 广州一博环保科技有限公司 | Up-flow hydrolysis acidification coupling preposed denitrification reactor |
| CN114671522A (en) * | 2022-04-24 | 2022-06-28 | 广州一博环保科技有限公司 | High-efficient low energy consumption sewage treatment system |
| CN116444036A (en) * | 2023-06-09 | 2023-07-18 | 乾坤环保股份有限公司 | Strong hydrolysis acidification reaction device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201245503Y (en) * | 2008-08-08 | 2009-05-27 | 康升环保(天津)有限公司 | Multi-cycle efficient anaerobic waste water treating device |
| CN204981332U (en) * | 2015-08-08 | 2016-01-20 | 武汉森泰环保股份有限公司 | Pulse upflow anaerobic reactor |
| CN206014509U (en) * | 2016-08-27 | 2017-03-15 | 武汉森泰环保股份有限公司 | A kind of two-phase laminated flow inner-outer circulation anaerobic reactor |
-
2018
- 2018-08-06 CN CN201810883783.0A patent/CN108821430A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201245503Y (en) * | 2008-08-08 | 2009-05-27 | 康升环保(天津)有限公司 | Multi-cycle efficient anaerobic waste water treating device |
| CN204981332U (en) * | 2015-08-08 | 2016-01-20 | 武汉森泰环保股份有限公司 | Pulse upflow anaerobic reactor |
| CN206014509U (en) * | 2016-08-27 | 2017-03-15 | 武汉森泰环保股份有限公司 | A kind of two-phase laminated flow inner-outer circulation anaerobic reactor |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110526395A (en) * | 2019-09-27 | 2019-12-03 | 浙江省环境工程有限公司 | Eddy flow anaerobic reactor for waste water treatment system |
| CN110526395B (en) * | 2019-09-27 | 2024-06-07 | 浙江省环境工程有限公司 | Rotational flow anaerobic reactor for wastewater treatment system |
| CN114314829A (en) * | 2022-01-11 | 2022-04-12 | 广州一博环保科技有限公司 | Up-flow hydrolysis acidification coupling preposed denitrification reactor |
| CN114671522A (en) * | 2022-04-24 | 2022-06-28 | 广州一博环保科技有限公司 | High-efficient low energy consumption sewage treatment system |
| CN116444036A (en) * | 2023-06-09 | 2023-07-18 | 乾坤环保股份有限公司 | Strong hydrolysis acidification reaction device |
| CN116444036B (en) * | 2023-06-09 | 2023-08-18 | 乾坤环保股份有限公司 | Strong hydrolysis acidification reaction device |
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Application publication date: 20181116 |