CN208949040U - Cosmetics sewage pretreatment device - Google Patents
Cosmetics sewage pretreatment device Download PDFInfo
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- CN208949040U CN208949040U CN201821249174.1U CN201821249174U CN208949040U CN 208949040 U CN208949040 U CN 208949040U CN 201821249174 U CN201821249174 U CN 201821249174U CN 208949040 U CN208949040 U CN 208949040U
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- electrolysis tower
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Abstract
The utility model discloses a kind of cosmetics sewage pretreatment device, including conditioning tank and the first elevator pump, H2SO4Chemicals dosing plant, PAM chemicals dosing plant, NaOH chemicals dosing plant, iron-carbon micro-electrolysis tower, neutralization precipitation pond, intermediate pool, dissolved gas floatator, wherein the water inlet end of the first elevator pump is connected with conditioning tank, water outlet leads to iron-carbon micro-electrolysis tower and is connected, and has iron carbon filler in iron-carbon micro-electrolysis tower；Neutralization precipitation pond includes successively interconnected neutralization pond, flocculation basin and sedimentation basin, wherein neutralization pond is connected with the upper end of iron-carbon micro-electrolysis tower, and the upper end of sedimentation basin is connected with the upper end of intermediate pool, the intermediate pool position is lower than sedimentation basin, intermediate pool lower end is connected by the second elevator pump with dissolved gas floatator, the processing mode combined by iron-carbon micro-electrolysis, coagulating sedimentation and air-dissolving air-float efficiently, economically pre-processes the cosmetics waste water of high concentration.
Description
Technical field
The utility model relates to sewage treatment equipment technologies, and in particular to a kind of cosmetics sewage pretreatment device.
Background technique
Cosmetics generally can be divided into general liquid unit, high white lotion unit, powder unit, aerosol and organic solvent list
Member, wax unit and other units etc..The basic moisturizing raw material of cosmetics is broadly divided into: plant oil, wax class, Synthetic Oil and rouge
Fat acid, fatty alcohol and lipid；In addition, also containing emulsifier, thickener, antioxidant, antisepsis and sterilization and essence pigment etc..Makeup
The production operation unit of product is usually discontinuous, can be divided into crushing, abrasive flour product mixing, emulsification and dispersion, separation and
Classification, material conveying, heating and cooling, sterilizing and disinfection, the molding of product and packaging, the cleaning of solvent etc..
Therefore in addition to plant area's sanitary sewage, cosmetic-producing wastewater main source is as follows: 1. cleaning flushing waste waters, such as product
Or the washing water in the subtractive process of intermediate product, replace the washing of product or consersion unit or reaction kettle when intermittent reaction
With water, bottle-washing water etc., wherein main component is raw material, product and intermediate product and by-product etc.；2. product processing technique
It drains, the waste water such as waste water such as vinasse, crystalline mother solution, filtrated stock formed in production process.Perfume class cosmetics use
Spirit solvent need to through increasing potassium manganate, plus hydrogen peroxide, plus active carbon and be added fragrance the step of.
Cosmetic-producing wastewater has following main feature: 1. waste water waters are generally little, but pollutant concentration is high； 2.
Waste component is complicated；3. bio-refractory substance is more；4. poisonous and harmful substance is more.
When handling cosmetics waste water in the prior art, the concentration of organic wastewater into processing equipment is high, and variation water quality is big,
Suspended matter is more, and biodegradability can be poor, and anionic surfactant is high, is easy to produce bubble, overflows bubble, while waste water can give birth to
The property changed is low, it is easy to make subsequent biochemical systemic breakdown.
Utility model content
To solve the above problems, the utility model provides a kind of cosmetics sewage pretreatment device, to improve cosmetics
The biodegradability of waste water is produced, LAS content and hardly degraded organic substance concentration are reduced, avoids influencing subsequent biochemical effect.
To achieve the above object, technical solutions of the utility model are as follows:
A kind of cosmetics sewage pretreatment device, including conditioning tank and the first elevator pump, key are: further including H2SO4
Chemicals dosing plant, PAM chemicals dosing plant, NaOH chemicals dosing plant, iron-carbon micro-electrolysis tower, neutralization precipitation pond, intermediate pool, air-dissolving air-float
Machine, wherein the water inlet end of the first elevator pump is connected with conditioning tank, the lower end that water outlet passes through water pumping pipeline and iron-carbon micro-electrolysis tower
It is connected, the H2SO4Chemicals dosing plant is used to be added dilute sulfuric acid to iron-carbon micro-electrolysis tower, has iron carbon in the iron-carbon micro-electrolysis tower
Filler；
The neutralization precipitation pond includes successively interconnected neutralization pond, flocculation basin and sedimentation basin, wherein neutralization pond and iron
The upper end of carbon micro-electrolysis tower is connected, and the upper end of sedimentation basin is connected with the upper end of intermediate pool, and the intermediate pool position is than heavy
Shallow lake pond is low, and the intermediate pool lower end is connected by the second elevator pump with dissolved gas floatator；
The NaOH chemicals dosing plant is used for for NaOH solution, PAM chemicals dosing plant to be added into neutralization pond into flocculation basin
PAM solution is added.
Using above scheme, by entering in iron-carbon micro-electrolysis tower after mixing waste water with dilute sulfuric acid, occur with iron carbon micro-
Cell reaction reaches pretreating effect, reduce waste water COD cr and improve B/C ratio simultaneously, to improve the biochemical of waste water
Property, it using the effect of neutralization precipitation and air floatation machine, then further reduced SS, CODcr and LAS content of waste water, improve
Pretreating effect is conducive to subsequent biochemical processing.
As preferred: the water pumping pipeline is equipped with pipe-line mixer, the H2SO4The drug feeding pipe of chemicals dosing plant and the pipe
Road mixer is connected.Using above scheme, dilute sulfuric acid and waste water mixed effect can be made more preferable, into iron-carbon micro-electrolysis tower after react
Efficiency is more preferably.
As preferred: the conditioning tank upper end is equipped with waste water inlet, in conditioning tank to should waste water inlet position be equipped with
Filtering grid.Using above scheme, by filtering grid can the impurity to bulky grain in waste water filter in advance, avoid to elevator pump
It causes to damage or result in blockage to pipeline.
As preferred: the iron-carbon micro-electrolysis tower underfill has a pebble layer, and the height of pebble layer is 400~
The diameter of 600mm, cobble are 16~24mm, and iron carbon filler is located at the top of pebble layer, a diameter of 6~8mm.It adopts
It with above scheme, avoids that the waste water being pumped into directly causes to wash away to iron carbon filler or iron carbon filler is lost with pipeline, is conducive to subtract
The consumption of low iron carbon filler, while can also prevent iron carbon filler from resulting in blockage to water distributor or gas distribution pipe.
As preferred: the iron-carbon micro-electrolysis tower bottom is horizontally disposed in pebble layer water distributor and gas distribution pipe,
One end of middle water distributor is connected after being pierced by iron-carbon micro-electrolysis tower with water pumping pipeline, and one end of gas distribution pipe is after iron-carbon micro-electrolysis tower
It is connected with aerator.Using above scheme, it can make the waste water being pumped into is more uniform to overflow upwards by water distributor, be conducive to make
Waste water is uniformly contacted with iron carbon filler, improves reaction efficiency, and can make to carry out uniform aeration to waste water by gas distribution pipe, is conducive to
Further increase reaction mass.
As preferred: the neutralization bottom of pond portion is equipped with aeration tube, and one end of the aeration tube is connected with aerator.More than
Structure is conducive to improve neutralization reaction efficiency, increases OH in liquid?Concentration.
As preferred: the precipitating bottom of pond portion is funnel-shaped, and offers mud discharging mouth, and the upper end of sedimentation basin offers overflow
Mouthful.Using the above structure, quickly the sludge deposited in sedimentation basin can be excluded, avoids forming accumulation in sedimentation basin, reduces it
Actual volume influences waste water treatment efficiency.
As preferred: being equipped with blender in the flocculation basin.Using the above structure, suspended particulate or colloidal particles be can avoid
It is accumulated in flocculation basin, and ensures that PAM solution is sufficiently mixed, improve flocculation.
As preferred: being equipped with soda acid indicating gage in the iron-carbon micro-electrolysis tower and neutralization pond.Using the above structure, favorably
The acid base concentration in equipment is corresponded in real-time monitoring during the reaction, quickly to make the next step measure.
As preferred: the iron-carbon micro-electrolysis tower bottom is connected with evacuated tube.It, can be as needed to iron using above scheme
The emptying cleaning of carbon micro-electrolysis tower, avoids the deposition of impurity or soiling solution in iron-carbon micro-electrolysis tower, it is advantageously ensured that pretreatment quality is steady
It is fixed.
Compared with prior art, the utility model has the beneficial effects that
It is main to pass through iron-carbon micro-electrolysis reaction, coagulation using cosmetics sewage pretreatment device provided by the utility model
Precipitating and the effect of three step of dissolved gas floatator, using reduce waste water SS, CODcr and LAS content (wherein SS is suspension content,
CODcr is content of organics, and LAS is anionic surfactant concentration), its B/C ratio (biodegradability ratio) is improved, it is high
Effect economically pre-processes the cosmetics waste water of high concentration, is conducive to the good operation of subsequent biochemical system, is discharged more steady
It is fixed, it can preferably reach discharge standard.
Detailed description of the invention
Fig. 1 is the utility model attachment structure schematic diagram；
Fig. 2 is iron-carbon micro-electrolysis tower structural schematic diagram in embodiment illustrated in fig. 1；
Fig. 3 is neutralization precipitation pool structure schematic diagram in embodiment illustrated in fig. 1.
Specific embodiment
The utility model is described in further detail with attached drawing with reference to embodiments.
With reference to Fig. 1 and cosmetics sewage pretreatment device shown in Fig. 3, mainly include conditioning tank 1, the first elevator pump 2,
H2SO4Chemicals dosing plant 3, PAM chemicals dosing plant 4, NaOH chemicals dosing plant 6, iron-carbon micro-electrolysis tower 7, neutralization precipitation pond 8, intermediate pool 9,
Dissolved gas floatator 1a, the second elevator pump 90 and aerator A, wherein conditioning tank 1 is hollow structure, is mainly used for storing wastewater,
Upper end is equipped with waste water inlet 10 close to the position of side, and the position that the waste water inlet 10 is corresponded to inside conditioning tank 1 was covered with
Filter grid grid 11, so that the filtration that will pass through filtering grid 11 first into the waste water of conditioning tank 1 can remove big
The impurity of particle is additionally provided with liquid-level switch 12 in conditioning tank 1, switchs in the present embodiment for liquid-level floater, conditioning tank 1 may be implemented
The real-time monitoring of interior liquid level.
As shown, iron-carbon micro-electrolysis tower is hollow structure in the application, have on bottom wall and its internal row being connected to
Blank pipe 74, the position close to bottom are equipped with water distributor 72 and gas distribution pipe 73, two sides water of the two from iron-carbon micro-electrolysis tower face
Flat to be inserted, the top of iron-carbon micro-electrolysis tower is equipped with effluent weir 76, is equipped with outlet in the position below effluent weir 76
75, iron-carbon micro-electrolysis tower is additionally provided with soda acid indicating gage C, and the inductive head of soda acid indicating gage C protrudes into iron-carbon micro-electrolysis tower, and is lower than
The position of outlet 75.
Iron-carbon micro-electrolysis tower inside bottom has pebble layer 71, and pebble layer 71 is piled up by cobblestone, entirety
Height is about 400~600mm, preferably 500mm in the present embodiment, wherein the cobblestone diameter used is 16~24mm,
Water distributor 72 and gas distribution pipe 73 are respectively positioned in pebble layer 71, have iron carbon filler 70 in the top of pebble layer 71, iron carbon is filled out
Material 70 includes iron filings and carbon particle, and diameter about 6~8mm can also be according to water distributor 72 and gas distribution pipe during actually selecting
73 pore size carries out preferably, and the upper end end face of iron carbon filler 70 is lower than the position of outlet 75.
Neutralization precipitation pond in the application mainly includes successively interconnected neutralization pond 80, flocculation basin 82 and sedimentation basin
83, as shown, neutralization pond 80 is equipped with soda acid indicating gage C, the inductive head of soda acid indicating gage C is protruded into neutralization pond 80, is neutralized
Pond 80 is equipped with aeration tube close to the position of bottom, and aeration tube protrudes into wherein from the side of neutralization pond 80, and flocculation basin 82 is equipped with and stirs
Device B is mixed, the lower end of sedimentation basin 83 is funnel-shaped, and offers mud discharging mouth 830, the upper end of sedimentation basin 83 in the position close to bottom
Position close to top is equipped with overflow port 831
H in the present embodiment2SO4Chemicals dosing plant, PAM chemicals dosing plant and NaOH chemicals dosing plant include corresponding solution storehouse
And dosing pump, i.e. H2SO4Chemicals dosing plant includes dilution heat of sulfuric acid storehouse and dosing pump, PAM chemicals dosing plant then include PAM solution storehouse and
Dosing pump, NaOH chemicals dosing plant include NaOH solution storehouse and dosing pump, wherein the polyacrylamide solution of PAM solution, that is, general,
Each solution storehouse is respectively connected with tap water pipeline, in order to mix adjusting solution concentration in real time, in addition, on NaOH chemicals dosing plant
Equipped with blender B, to prevent solution from precipitating, cause solution pharmacological property uneven, is conducive to play better quality of liquid medicine.
As shown, the pipeline connection of the present apparatus is as follows, conditioning tank 1 passes through water pipe far from one end bottom of waste water inlet 10
It is connected with 2 water inlet end of the first elevator pump, the water outlet of the first elevator pump 2 is connected by pumping pipeline 20 with water distributor 72, with this
Meanwhile pipe-line mixer 200, H is in series on pumping pipeline 202SO4Dosing pump in chemicals dosing plant is mixed by pipeline and pipeline
Clutch 200 is connected.
The outlet 75 of iron-carbon micro-electrolysis tower upper end is connected by pipeline with the upper end of neutralization pond 80, and sedimentation basin upper end is overflow
Head piece 831 is connected by pipeline with 9 upper end of intermediate pool, and the lower end of intermediate pool 9 is connected with the water inlet end of the second elevator pump 90,
The water outlet of second elevator pump 90 is connected with dissolved gas floatator.
Aerator A is connected with gas distribution pipe 73 and aeration tube simultaneously, can be simultaneously in iron-carbon micro-electrolysis tower 7 and neutralization pond 80
Liquid is aerated.
The dosing pump of NaOH chemicals dosing plant 6 is connected by pipeline with neutralization pond 80, and it is molten NaOH can be added into neutralization pond 80
The dosing pump of liquid, PAM chemicals dosing plant 4 is connected with flocculation basin 82, and PAM solution can be added thereto.
Referring to figs. 1 to Fig. 3, as follows to cosmetics Wastewater Pretreatment process using the present apparatus:
1, filtering of the waste water when entering conditioning tank 1 by filtering grid 11, effectively interception large granular impurity, avoid
Elevator pump or pipeline are impacted.
2, the Quick uniform in pipe-line mixer 200 mixes dilution heat of sulfuric acid with waste water, generally according to rate of pumping, can incite somebody to action
Waste water pH value after mixed solution is reduced to 4 or so.
3, acid waste water enters in iron-carbon micro-electrolysis tower 7 after pH value reduces, and passes through at the same time to its cloth water process
Aerator A is to being aerated inside it, when iron filings and carbon particle are immersed in acid waste water, due to the electrode potential between iron and carbon
Difference will form numerous micro- primary battery in waste water, these subtle batteries are to become anode with the low iron of current potential, and the high carbon of current potential is done
Cathode, occurs electrochemical reaction in the aqueous solution containing acidic electrolyte bath, and reaction process is as follows
Anode (Fe): Fe-2e → Fe2+
Cathode (C): 2H++2e→2[H]→H2
Reaction the result is that iron, which is become the iron ion of divalent by corrosion, enters solution, since iron ion has coagulation,
There is a natural attraction between the sexes with the particle with faint negative electrical charge in pollutant forms more stable flocculate (iron cement) and remove for it, in order to increase
It is powered on potential difference, promotes the release of iron ion that certain proportion copper powder or lead powder can also be added in iron carbon filler 70.
In reaction, the Fe of the nascent state of generation2+With atom H, they have high chemical activity, and can change many in waste water has
The structure and characteristic of machine object, make organic matter occur chain rupture, open loop the effects of.
If there is aeration, not only oxygen inflatable but also iron filings can be prevented hardened.It also occur that following reaction:
O2+4H++4e-→2H2O；
O2+2H2O+4e-→4OH?；
4Fe2++O2+4H+→2H2O+4Fe3+。
The OH generated in reaction?It is the raised reason of water ph value out, and by Fe2+Aoxidize the Fe generated3+Gradually hydrolysis generates
The big Fe of the degree of polymerization (OH)3Colloid flocculant can be adsorbed effectively, agglomerate pollutant in water, so that enhancing is to waste water
Clean-up effect.
4, it is discharged in neutralization pond 80, is passed through from the outlet 75 of upper end by the processed waste water of iron-carbon micro-electrolysis tower 7
NaOH solution is added to adjust the pH value of waste water to 10 or so, solution is aerated at the same time, makes its uniform properties, is adjusted
Effect when good waste water enters flocculation basin 82 by PAM solution finally forms the sedimentation alumen ustum of bulky grain in sedimentation basin 83,
Mud-water separation removes SS to reach, reduces the purpose of CODcr.
During 3 and 4 two, wherein the aeration in iron-carbon micro-electrolysis tower 7 is intermittent, thus cannot effectively by
Generate Fe2+Aoxidize the Fe generated3+, and when waste water remittance neutralization pond 80, continue to be aerated while adjusting PH as alkalinity, can increase
OH- concentration increasingly generates the big Fe of the degree of polymerization (OH)3Colloid flocculant can be adsorbed effectively, agglomerate pollutant in water,
Adsorb fine suspension or colloidal particles in water gradually mutually in conjunction with larger particles are formed, into flocculation basin 82, by adding
The PAM flocculant adsorption bridging added acts on and coheres particle mutually and be mutually agglomerated into larger particle, easily settled object, and reaches net
Water purpose.
5, it is temporarily stored in intermediate pool 9 from the waste water that sedimentation basin 83 overflows, because the position of intermediate pool 9 is than sedimentation basin 83
It is low, the precipitating water in sedimentation basin 83 can be made easily to enter in intermediate pool 9, reduce power demand, then pass through the second elevator pump 90
It is sent into dissolved gas floatator 1a, it mainly includes molten gas that dissolved gas floatator 1a, which is integral type dissolved air flotation device, in the present embodiment
Aquatic products generating apparatus, air flotation slot and floating machine is scraped, the dissolved air water of generation can be sent into air flotation slot by dissolved air water generation device, and second mentions
It rises pump 90 waste water in intermediate pool 9 is also fed into air flotation slot, in the case where pressure discharges suddenly, be dissolved in dissolved air water
Air be precipitated, form a large amount of microbubble group, come into full contact with the waste water that is pumped into, and be adsorbed on wadding in slow uphill process
On the suspended matter collected, while generating a large amount of bubbles, decline its density and floating to the water surface, then by scraping floating machine for air flotation slot water
The impurity salvaging in face is blown off, is further increased removal SS, CODcr, LAS effect, i.e. raising pretreatment quality, is finally given up
Water is discharged out of dissolved gas floatator 1a air flotation slot again, into lower step biochemical treatment unit.
Finally, it should be noted that foregoing description is only the preferred embodiment of the utility model, the ordinary skill of this field
Personnel are under the enlightenment of the utility model, under the premise of without prejudice to the utility model aims and claim, can make more
Kind is similar to be indicated, such transformation is each fallen within the protection scope of the utility model.
Claims (10)
1. a kind of cosmetics sewage pretreatment device, including conditioning tank (1) and the first elevator pump (2), it is characterised in that: further include
H2SO4 chemicals dosing plant (3), PAM chemicals dosing plant (4), NaOH chemicals dosing plant (6), iron-carbon micro-electrolysis tower (7), neutralization precipitation pond
(8), intermediate pool (9), dissolved gas floatator (1a), wherein the water inlet end of the first elevator pump (2) is connected with conditioning tank (1), water outlet
End is connected by pumping pipeline (20) with the lower end of iron-carbon micro-electrolysis tower (7), and the H2SO4 chemicals dosing plant (3) is used for iron carbon
Dilute sulfuric acid is added in light electrolysis tower (7), has iron carbon filler (70) in the iron-carbon micro-electrolysis tower (7)；
The neutralization precipitation pond (8) includes successively interconnected neutralization pond (80), flocculation basin (82) and sedimentation basin (83), wherein
Neutralization pond (80) is connected with the upper end of iron-carbon micro-electrolysis tower (7), and the upper end phase of the upper end of sedimentation basin (83) and intermediate pool (9)
Even, intermediate pool (9) position is lower than sedimentation basin (83), the intermediate pool (9) lower end by the second elevator pump (90) with
Dissolved gas floatator (1a) is connected；
The NaOH chemicals dosing plant (6) is used to be added NaOH solution into neutralization pond (80), and PAM chemicals dosing plant (4) is used for wadding
PAM solution is added in solidifying pond (82).
2. cosmetics sewage pretreatment device according to claim 1, it is characterised in that: set on the water pumping pipeline (20)
Have pipe-line mixer (200), the drug feeding pipe of the H2SO4 chemicals dosing plant (3) is connected with the pipe-line mixer (200).
3. cosmetics sewage pretreatment device according to claim 1, it is characterised in that: conditioning tank (1) upper end is set
Have waste water inlet (10), in conditioning tank (1) to should waste water inlet (10) position be equipped with filtering grid (11).
4. cosmetics sewage pretreatment device as claimed in any of claims 1 to 3, it is characterised in that: the iron
Carbon micro-electrolysis tower (7) underfill has pebble layer (71), and the height of pebble layer (71) is 400~600mm, cobble
Diameter be 16~24mm, iron carbon filler (70) is located at the top of pebble layer (71), a diameter of 6~8mm.
5. cosmetics sewage pretreatment device according to claim 4, it is characterised in that: the iron-carbon micro-electrolysis tower (7)
Bottom is horizontally disposed in pebble layer (71) water distributor (72) and gas distribution pipe (73), and wherein one end of water distributor (72) is pierced by
Iron-carbon micro-electrolysis tower (7) is connected with water pumping pipeline (20) afterwards, and one end of gas distribution pipe (73) connects afterwards through iron-carbon micro-electrolysis tower (7)
There is aerator (A).
6. cosmetics sewage pretreatment device according to claim 5, it is characterised in that: neutralization pond (80) bottom is set
There are aeration tube (800), one end of the aeration tube (800) is connected with aerator (A).
7. cosmetics sewage pretreatment device according to claim 1, it is characterised in that: sedimentation basin (83) bottom is in
Funnel-form, and mud discharging mouth (830) are offered, the upper end of sedimentation basin (83) offers overflow port (831).
8. cosmetics sewage pretreatment device according to claim 1 or claim 7, it is characterised in that: in the flocculation basin (82)
Equipped with blender (B).
9. cosmetics sewage pretreatment device according to claim 1, it is characterised in that: the iron-carbon micro-electrolysis tower (7)
With neutralization pond (80) in be equipped with soda acid indicating gage (C).
10. according to claim 1 or cosmetics sewage pretreatment device described in 9, it is characterised in that: the iron-carbon micro-electrolysis tower
(7) bottom is connected with evacuated tube (74).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821249174.1U CN208949040U (en) | 2018-08-03 | 2018-08-03 | Cosmetics sewage pretreatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821249174.1U CN208949040U (en) | 2018-08-03 | 2018-08-03 | Cosmetics sewage pretreatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208949040U true CN208949040U (en) | 2019-06-07 |
Family
ID=66733108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821249174.1U Active CN208949040U (en) | 2018-08-03 | 2018-08-03 | Cosmetics sewage pretreatment device |
Country Status (1)
| Country | Link |
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| CN (1) | CN208949040U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110615565A (en) * | 2019-10-18 | 2019-12-27 | 福建创投环保科技有限公司 | Pharmaceutical factory pharmaceutical wastewater purification device based on iron-carbon micro-electrolysis process |
-
2018
- 2018-08-03 CN CN201821249174.1U patent/CN208949040U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110615565A (en) * | 2019-10-18 | 2019-12-27 | 福建创投环保科技有限公司 | Pharmaceutical factory pharmaceutical wastewater purification device based on iron-carbon micro-electrolysis process |
| CN110615565B (en) * | 2019-10-18 | 2024-04-09 | 福建创投环保科技有限公司 | Pharmaceutical factory pharmacy waste water purifier based on iron-carbon micro-electrolysis technology |
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