CN108164092A - A kind of chemical engineering sewage treatment process - Google Patents
A kind of chemical engineering sewage treatment process Download PDFInfo
- Publication number
- CN108164092A CN108164092A CN201810033275.3A CN201810033275A CN108164092A CN 108164092 A CN108164092 A CN 108164092A CN 201810033275 A CN201810033275 A CN 201810033275A CN 108164092 A CN108164092 A CN 108164092A
- Authority
- CN
- China
- Prior art keywords
- waste water
- shaft
- treatment process
- sewage treatment
- chemical engineering
- 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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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/09—Stirrers characterised by the mounting of the stirrers with respect to the receptacle
- B01F27/091—Stirrers characterised by the mounting of the stirrers with respect to the receptacle with elements co-operating with receptacle wall or bottom, e.g. for scraping the receptacle wall
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/21—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by their rotating shafts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/83—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis the stirrers being additionally moved radially, or oscillating about an axis perpendicular to the stirrer axis
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/02—Treatment of water, waste water, or sewage by heating
-
- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- 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
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
- C02F2201/007—Modular design
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a kind of chemical engineering sewage treatment process, include the following steps：（1）Waste water carries out prefiltration processing by primary grid, removes suspended matter, floating material in waste water；（2）Waste water is passed through secondary grid secondary filter later to handle, removes tiny sundries, twister in waste water；（3）Waste water is passed through neutralization pond, in neutralization pond neutralization reaction fall the chemical ion in waste water；（4）Waste water is passed through aerobic tank later, is passed through after reacting 1 2h to inclined-plate clarifying basin excessively；The present invention effectively filters the impurity in sewage by being provided with the grids of two ranks of primary and secondary, still there is a situation where impurity in the sewage that avoids that treated, the effluent quality of sewage after raising processing.
Description
Technical field
The invention belongs to chemical production technical field, more particularly, to a kind of chemical engineering sewage treatment process.
Background technology
Not there is only a variety of chemical ions in chemical engineering sewage, also there are many floating materials, suspended matter, impurity etc.,
Conventional waste water processing during, seldom by sight be placed in waste water floating material, suspended matter, impurity removal on,
In turn result in it is many treated that although the removals such as industrial wastewater chemical ion are clean, still deposited in the processing water excluded
In more floating material, suspended matter, impurity, environmental pollution can be equally caused.
Invention content
The present invention is handled to overcome the deficiencies of the prior art and provide a kind of chemical engineering sewage for effectively removing dirty impurities in water
Technique.
To achieve these goals, the present invention uses following technical scheme：A kind of chemical engineering sewage treatment process, including following
Step：
（1）Waste water carries out prefiltration processing by primary grid, removes suspended matter, floating material in waste water；
（2）Waste water is passed through secondary grid secondary filter later to handle, removes tiny sundries, twister in waste water；
（3）Waste water is passed through neutralization pond, in neutralization pond neutralization reaction fall the chemical ion in waste water；
（4）Waste water is passed through aerobic tank later, is passed through after reacting 1-2h to inclined-plate clarifying basin excessively；
Further, the grid grid gap of the primary grid is 16-25mm.
Further, the grid grid gap of the secondary grid is 3-10mm.
Further, waste water in reaction process, needs to expose into dissolved oxygen in aerobic tank.
Further, the dissolved oxygen control is controlled in 0.2-0.5mg/L, the temperature of aerobic tank at 35-40 DEG C.
Further, the neutralization pond domestic demand adds neutralizer
Further, the neutralization pond includes pond body, shaft and driving motor, and the shaft is equipped with vibration stirring device, institute
Vibration stirring device is stated to include being sheathed on the agitating shaft that can be moved up and down in the shaft and when the shaft rotates and be set on
Mixing component on the agitating shaft, the agitating shaft coordinate with shaft rotation stop；The pond body inner wall is equipped with turbulent component；Pass through
Vibration stirring device in shaft is set, when the spindle is rotated, is set in the agitating shaft in shaft while being rotated with shaft
It can also move up and down, and then enhance the amplitude of agitating shaft and mixing component when rotated, effectively realize in processing pond at material
In turbulent condition, and then the mixing between sewage and medicament is very abundant, good sewage processing effect, and efficient；Additionally by
Turbulent component is set on pond body inner wall so that material is more disorderly in flowing, and then improves mixing effect.
Further, the agitating shaft is equipped with and the matched inserting groove of the shaft, the shaft and inserting groove bottom
Multiple balls are equipped between wall, the shaft is equipped with multiple and matched first groove of the ball, the inserting groove bottom
Wall is equipped with multiple and matched second groove of the ball；When agitating shaft is rotated with shaft, ball with rotating shaft bottom
It can be rolled under the frictional force effect of end face, when ball rolls into or roll out the first groove and the second groove, that is, realize and stir
Up and down action of the axis relative to shaft is mixed, so that a degree of vibration can occur for agitating shaft so that waste water and medicament it
Between mixing be more uniformly distributed.
In conclusion the grid of the invention by being provided with two ranks of primary and secondary, carries out the impurity in sewage
Still there is impurity in the sewage that avoids that treated, the effluent quality of sewage after raising processing in effectively filtering；It is and primary
It is set as different, and then may filter that different size of impurity with secondary grid size, effectively avoids the occurrence of omission and blocking
Situation.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is enlarged drawing at A in Fig. 1.
Fig. 3 is the lateral partial structurtes sectional view one of the present invention.
Fig. 4 is the lateral partial structurtes sectional view two of the present invention.
Specific embodiment
In order to which those skilled in the art is made to be better understood from the present invention program, below in conjunction in the embodiment of the present invention
Attached drawing carries out the technical solution in the embodiment of the present invention clear, complete description.
Embodiment 1
A kind of chemical engineering sewage treatment process, includes the following steps：（1）Waste water carries out prefiltration processing, grid by primary grid
The control of grid gap removes suspended matter, floating material in waste water in 16mm；（2）Waste water is passed through the secondary mistake of secondary grid later
Filter is handled, and the control of grid grid gap removes tiny sundries, twister in waste water in 3mm；（3）Waste water is passed through neutralization pond,
The chemical ion in waste water is fallen in neutralization reaction in neutralization pond, and neutralizer is added into neutralization pond, which can be used quick lime,
Also it can voluntarily be adjusted according to the chemical ion contained in waste water；（4）Waste water is passed through aerobic tank later, and in the process of reaction
In, it is exposed by aerator into aerobic tank into dissolved oxygen, in 0.2mg/L, the temperature control of aerobic tank exists for the amount control of dissolved oxygen
35℃；It is passed through to inclined-plate clarifying basin excessively and is precipitated after reaction 1h, inclined-plate clarifying basin can be realized for the prior art, herein no longer
It repeats.
As shown in Figs 1-4, the neutralization pond includes pond body 1, shaft 2 and driving motor 3, and stirring is equipped in the pond body
Chamber, the shaft bottom end are stretched in the stir chamber, the top of shaft and the output shaft fixed connection of driving motor, the shaft 2
Vibration stirring device 4 is equipped with, the vibration stirring device 4 includes being sheathed in the shaft 2 and can rotating in the shaft
When the agitating shaft 5 that moves up and down and the mixing component 6 on the agitating shaft, the agitating shaft 5 coordinate with 2 rotation stop of shaft, tool
Body, the top of the agitating shaft 5 is equipped with cylindrical inserting groove 51, and the bottom end of the shaft can be inserted into the inserting groove 51
It is interior, 4 anti-rotation blocks 52 are removably connected with by a connection structure on 51 inner wall of inserting groove, described 4 anti-rotation blocks are set
Put inserting groove inner wall and along its it is circumferentially-spaced be uniformly arranged, the shaft 2 be equipped with and the anti-rotation block 52 matched 4
Rotation stop groove 22 is equipped with return unit 53 between 22 inner wall of the anti-rotation block 52 and rotation stop groove, and the return unit is a compressed spring, should
The top of spring and the lower surface of anti-rotation block are connected, and bottom end and the rotation stop groove bottom wall of spring are connected, and pass through anti-rotation block and rotation stop groove
It is mating, realize agitating shaft between shaft rotation stop cooperation, and then ensure agitating shaft can be with shaft synchronization action；Pass through
The cooperation of anti-rotation block and rotation stop groove realizes the rotation stop cooperation of agitating shaft and shaft, so that agitating shaft can be with turning
Dynamic, anti-rotation block is detachably connected with inserting groove inner wall, and then convenient for anti-rotation block is inserted into rotation stop groove in assembling process, is led to
It crosses and return unit is set between the lower surface of anti-rotation block and the bottom wall of rotation stop groove, ensure ball energy when first and second groove rolls
Agitating shaft is driven to be moved up and down relative to shaft.
Further, the connection structure includes being set on matched with the anti-rotation block 52 on 51 inner wall of inserting groove
Resettlement groove 512, the first threaded hole on the resettlement groove inner wall, the second threaded hole on the anti-rotation block 52 and can
Respectively with first threaded hole and the screw rod of the second screw hole, during assembling, first anti-rotation block is snapped onto in rotation stop groove, so
Anti-rotation block 52 is placed in resettlement groove 512 again afterwards, the first threaded hole can align, and then pass through spiral shell with the second threaded hole at this time
Anti-rotation block can be fixed on the inner wall of inserting groove by the cooperation of bar and two threaded holes.
In order to realize that agitating shaft can vibrate in shaft rotation process, in the shaft 2 and 51 bottom wall of inserting groove
Between be equipped with multiple balls 8, the shaft 2 is equipped with multiple with 8 matched first groove 21 of ball, the inserting groove
51 bottom walls are equipped with multiple and matched second groove 511 of the ball, when in shaft drive agitating shaft together rotation process
When middle, when frictional force that ball is applied by shaft lower face, can roll so that ball can constantly pass in and out first,
In two grooves, so that agitating shaft can be moved up and down relative to shaft；The size of ball can according to actual needs voluntarily
It is adjusted, does not limit herein.
Further, the mixing component 6 includes being connected on the agitating shaft 5 and two connector 61 set up and down
And 4 pieces of V-type plates 62 being connected between two connector, the connector 61 include the axle sleeve being socketed on the agitating shaft
611 and 4 are connected on the side wall of shaft sleeve and in horizontally disposed connecting rod 612, and described 4 connecting rods are along the outer of axle sleeve
Side wall is circumferentially uniformly distributed, and the upper and lower ends of the V-type plate 62 are welded on one with the connecting rod 612 on upper and lower two axle sleeve respectively
It rises, when agitating shaft rotates, V-type plate can rotate therewith, and due to the setting of V-structure so that the material in pond body is in V
It is spread apart under the extruding force effect of template along the two sides of V-type plate, and then collide with the material of surrounding, reaches one and preferably stir
Mix effect.
Preferably, the first diversion trench 621 and the second diversion trench 622 are respectively equipped on the two sides of the V-type plate 62, it is described
The direction of first diversion trench and the second diversion trench is different, and then not only speed is different and direction from the material of different diversion trenches outflow
Also it is different, and then the shock degree of storeroom is further enhanced, further improve mixing effect.
In order to further enhance turbulence level of the material in flowing in pond body, turbulent flow is equipped on 1 inner wall of pond body
Component 7, specifically, the turbulent flow component 7 includes being set on multiple turbulent slots 11 on the pond body inner wall, set on the turbulent slot
Baffle 12 on inner wall and multiple through-holes 13 on the baffle, the turbulent slot along pond body inner wall it is circumferentially-spaced
Even setting groove, the baffle plate setting are connected on the inner wall of groove, and the setting of turbulent slot increases the out-of-flatness of pond body inner wall
Property, since the material flowed out from turbulent slot is different from the flowing velocity of material outside turbulent slot, and then the two can collide,
Realize the action of turbulent flow to material, additionally by setting baffle and on baffle setting for material by through-hole, further
Enhance the action of turbulent flow to material.
Embodiment 2
A kind of chemical engineering sewage treatment process, includes the following steps：（1）Waste water carries out prefiltration processing, grid by primary grid
The control of grid gap removes suspended matter, floating material in waste water in 25mm；（2）Waste water is passed through the secondary mistake of secondary grid later
Filter is handled, and the control of grid grid gap removes tiny sundries, twister in waste water in 10mm；（3）Waste water is passed through neutralization pond,
The chemical ion in waste water is fallen in neutralization reaction in neutralization pond, and neutralizer is added into neutralization pond, which can be used raw stone
Ash also can voluntarily be adjusted according to the chemical ion contained in waste water；（4）Waste water is passed through aerobic tank later, and in the mistake of reaction
Cheng Zhong is exposed into aerobic tank into dissolved oxygen by aerator, and in 0.5mg/L, the temperature of aerobic tank controls for the amount control of dissolved oxygen
At 40 DEG C；It is passed through to inclined-plate clarifying basin excessively and is precipitated after reaction 1h, inclined-plate clarifying basin can be realized for the prior art, herein not
It repeats again.
The structure of neutralization pond in the present embodiment is in the same manner as in Example 1, repeats no more.
Embodiment 1
A kind of chemical engineering sewage treatment process, includes the following steps：（1）Waste water carries out prefiltration processing, grid by primary grid
The control of grid gap removes suspended matter, floating material in waste water in 25mm；（2）Waste water is passed through the secondary mistake of secondary grid later
Filter is handled, and the control of grid grid gap removes tiny sundries, twister in waste water in 5mm；（3）Waste water is passed through neutralization pond,
The chemical ion in waste water is fallen in neutralization reaction in neutralization pond, and neutralizer is added into neutralization pond, which can be used quick lime,
Also it can voluntarily be adjusted according to the chemical ion contained in waste water；（4）Waste water is passed through aerobic tank later, and in the process of reaction
In, it is exposed by aerator into aerobic tank into dissolved oxygen, in 0.4mg/L, the temperature control of aerobic tank exists for the amount control of dissolved oxygen
40℃；It is passed through to inclined-plate clarifying basin excessively and is precipitated after reaction 1h, inclined-plate clarifying basin can be realized for the prior art, herein no longer
It repeats.
The structure of neutralization pond in the present embodiment is in the same manner as in Example 1, repeats no more.
Obviously, described embodiment is only the part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment should all belong to the scope of protection of the invention.
Claims (8)
1. a kind of chemical engineering sewage treatment process, it is characterised in that：Include the following steps：
Waste water carries out prefiltration processing by primary grid, removes suspended matter, floating material in waste water；
Waste water is passed through secondary grid secondary filter later to handle, removes tiny sundries, twister in waste water；
Waste water is passed through neutralization pond, in neutralization pond neutralization reaction fall the chemical ion in waste water；
Waste water is passed through aerobic tank later, is passed through after reacting 1-2h to inclined-plate clarifying basin excessively.
2. chemical engineering sewage treatment process according to claim 1, it is characterised in that：It is described primary grid grid grid gap be
16-25mm。
3. chemical engineering sewage treatment process according to claim 1, it is characterised in that：It is described secondary grid grid grid gap be
3-10mm。
4. chemical engineering sewage treatment process according to claim 1, it is characterised in that：Waste water reaction process in aerobic tank
In, it needs to expose into dissolved oxygen.
5. chemical engineering sewage treatment process according to claim 4, it is characterised in that：The dissolved oxygen control is in 0.2-
0.5mg/L, the temperature of aerobic tank are controlled at 35-40 DEG C.
6. chemical engineering sewage treatment process according to claim 1, it is characterised in that：The neutralization pond domestic demand adds neutralization
Agent.
7. chemical engineering sewage treatment process according to claim 1, it is characterised in that：The neutralization pond includes pond body（1）, turn
Axis（2）And driving motor（3）, the shaft（2）It is equipped with vibration stirring device（4）, the vibration stirring device（4）Including set
Set on the shaft（2）Agitating shaft that is upper and being moved up and down when the shaft rotates（5）It is stirred on the agitating shaft
Mix component（6）, the agitating shaft（5）With shaft（2）Rotation stop coordinates.
8. chemical engineering sewage treatment process according to claim 7, it is characterised in that：The agitating shaft（5）It is equipped with and institute
State shaft（2）Matched inserting groove（51）, the shaft（2）With inserting groove（51）Multiple balls are equipped between bottom wall（8）, institute
State shaft（2）It is equipped with the multiple and ball（8）Matched first groove（21）, the inserting groove（51）Bottom wall is equipped with
Multiple and matched second groove of the ball（511）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810033275.3A CN108164092A (en) | 2018-01-14 | 2018-01-14 | A kind of chemical engineering sewage treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810033275.3A CN108164092A (en) | 2018-01-14 | 2018-01-14 | A kind of chemical engineering sewage treatment process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108164092A true CN108164092A (en) | 2018-06-15 |
Family
ID=62514279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810033275.3A Withdrawn CN108164092A (en) | 2018-01-14 | 2018-01-14 | A kind of chemical engineering sewage treatment process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108164092A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113371800A (en) * | 2021-06-11 | 2021-09-10 | 泰焱(武汉)环境科技有限公司 | Chemical precipitation treatment method for electroplating wastewater |
| CN115196827A (en) * | 2022-07-13 | 2022-10-18 | 郑楷集团有限公司 | Process flow for near-zero discharge of chemical pharmaceutical wastewater |
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| CN101659492A (en) * | 2008-08-27 | 2010-03-03 | 王季坤 | Method for treating difficultly degraded organic wastewater |
| CN102188946A (en) * | 2011-05-03 | 2011-09-21 | 李容毅 | Eddy current paddle of reaction kettle |
| CN103395943A (en) * | 2013-08-14 | 2013-11-20 | 李志强 | Sewage treating method |
| KR101404152B1 (en) * | 2012-10-29 | 2014-06-05 | 김숙희 | Method and Arrangement for Manufacturing Functional Feed and Liquid Fertilizer from Food Waste by using Saccharization-decomposition processing apparatus |
| CN205599025U (en) * | 2016-05-11 | 2016-09-28 | 长春德联化工有限公司 | Mixing stirring device is glued to structure |
| CN106348523A (en) * | 2016-08-28 | 2017-01-25 | 潘纪鸿 | Method for treating waste water from food industry |
| CN107519752A (en) * | 2017-08-03 | 2017-12-29 | 深圳市乐业科技有限公司 | A kind of cleaning equipment of the high-efficient purification waste gas with wireless transmission function |
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2018
- 2018-01-14 CN CN201810033275.3A patent/CN108164092A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101659492A (en) * | 2008-08-27 | 2010-03-03 | 王季坤 | Method for treating difficultly degraded organic wastewater |
| CN102188946A (en) * | 2011-05-03 | 2011-09-21 | 李容毅 | Eddy current paddle of reaction kettle |
| KR101404152B1 (en) * | 2012-10-29 | 2014-06-05 | 김숙희 | Method and Arrangement for Manufacturing Functional Feed and Liquid Fertilizer from Food Waste by using Saccharization-decomposition processing apparatus |
| CN103395943A (en) * | 2013-08-14 | 2013-11-20 | 李志强 | Sewage treating method |
| CN205599025U (en) * | 2016-05-11 | 2016-09-28 | 长春德联化工有限公司 | Mixing stirring device is glued to structure |
| CN106348523A (en) * | 2016-08-28 | 2017-01-25 | 潘纪鸿 | Method for treating waste water from food industry |
| CN107519752A (en) * | 2017-08-03 | 2017-12-29 | 深圳市乐业科技有限公司 | A kind of cleaning equipment of the high-efficient purification waste gas with wireless transmission function |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113371800A (en) * | 2021-06-11 | 2021-09-10 | 泰焱(武汉)环境科技有限公司 | Chemical precipitation treatment method for electroplating wastewater |
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| CN115196827A (en) * | 2022-07-13 | 2022-10-18 | 郑楷集团有限公司 | Process flow for near-zero discharge of chemical pharmaceutical wastewater |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180615 |
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