CN207330596U - A kind of sewage-treatment plant using membrane technology - Google Patents
A kind of sewage-treatment plant using membrane technology Download PDFInfo
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- CN207330596U CN207330596U CN201721315285.3U CN201721315285U CN207330596U CN 207330596 U CN207330596 U CN 207330596U CN 201721315285 U CN201721315285 U CN 201721315285U CN 207330596 U CN207330596 U CN 207330596U
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Abstract
The utility model discloses a kind of sewage-treatment plant using membrane technology, including iron-carbon micro-electrolysis pond, electrodialytic cell and activated carbon adsorption tank, the first iron-carbon micro-electrolysis layer, the second iron-carbon micro-electrolysis layer and the 3rd iron-carbon micro-electrolysis layer are separated into by the first filter plate, the second filter plate and strainer in iron-carbon micro-electrolysis pond；Anode chamber, the first concentrated water room, freshwater room, the second concentrated water room and cathode chamber are equipped with successively along water (flow) direction in electrodialytic cell, and the first concentrated water room bottom, freshwater room bottom, the second concentrated water room bottom are equipped with water inlet pipe；First concentrated water ceiling end is equipped with the second outlet pipe, and the second concentrated water ceiling end is equipped with the 3rd outlet pipe, and freshwater room top is equipped with the 4th outlet pipe, and the other end of the second outlet pipe and the 3rd outlet pipe is respectively positioned on the top in iron-carbon micro-electrolysis pond；Activated carbon is filled with activated carbon adsorption tank.The utility model carries out integrated treatment for electrolytic cell and electrodialytic cell using iron carbon to electroplating sewerage, and treatment effeciency is high, and sewage after treatment being capable of qualified discharge.
Description
Technical field
The utility model belongs to sewage-treatment plant technical field, and in particular to a kind of sewage disposal using membrane technology fills
Put.
Background technology
For electroplating wastewater for its total amount, the water with respect to industries such as papermaking, printing and dyeing, chemical industry is small, but due to Electroplate Factory's point
Distribution is wide, and the species of contained highly toxic substance is more in waste water, and chromium, zinc, copper, the heavy metal ion such as cadmium, lead, nickel are contained in electroplating wastewater
And acid, alkali cyanide etc. have the debris of very big toxicity, its harmfulness is very big.Unprocessed electroplating wastewater row up to standard
Enter river, pond, permeate the ground, can not only endanger environment, and meeting polluted drinking water and industrial water, some still belong to carcinogenic
With the extremely toxic substance of aberration inducing.The toxicity of heavy metal pollution is big, belongs to non-degradable conservative substance, that is, in natural environment
It can only shift, it is difficult to eliminate.Because being difficult to eliminate in natural environment, the mankind by drinking water, food, skin contact, breathing,
Heavy metal will be brought into the human body, bring harm.
The processing of present electroplating wastewater, mainly using chemical precipitation method, adsorption treatment method, ion-exchange treatment method, reverse osmosis
Saturating method.Most commonly chemical precipitation method, but a large amount of sludge can be produced in reaction process, it is substantially that heavy metal is shifted by waste water
Into sludge, secondary pollution is caused.Adsorption treatment method, adsorbent is expensive, while adsorbent needs to regenerate and secondary pollution
Greatly, the extensive use of adsorption technology is constrained.Ion-exchange treatment method, ion-exchanger is selectively strong, and manufacture is complicated, cost
Height, regenerating agent consumption is big, and chelate resin is expensive, and operational administrative level requirement is high, therefore is above very limited in application.
In existing electroplating wastewater processing, hyperfiltration can recycle electroplate liquid, so as to obtain preferable economic benefit.Hyperfiltration is used for
Nickeliferous, cadmium wastewater concentration is applied to production.But the permeable membrane used in hyperfiltration is tender and lovely, to impurities in water,
PH value, the ionic species passed through requirement are stringent.In electroplating wastewater, solute and suspended matter are numerous and diverse, and the overwhelming majority to be acid or
Alkalescence, it is easy to cause permeable membrane blocking and destruction, it is necessary to very professional operation and maintenance level.As a result, overwhelming majority electricity
Plating factory is provided with reverse osmosis waste water treatment system to meet that clean manufacturing scores, in nickel plating technology, but environmental protection inspection and acceptance project is gone into operation
Afterwards, all do not have to actually, cause the waste of the wealth of society.
Utility model content
The purpose of this utility model is to provide a kind of sewage-treatment plant using membrane technology, solves electric in the prior art
Waste electroplating can produce secondary pollution using chemical precipitation method processing, needed to regenerate and produced using adsorption treatment method processing adsorbent
Secondary pollution is big, easily blocks and destroys using ion-exchange treatment method processing cost height, using hyperfiltration processing permeable membrane
The problem of.
The utility model provides a kind of sewage-treatment plant using membrane technology, including iron-carbon micro-electrolysis pond, electrodialysis
Pond and activated carbon adsorption tank, the bottom in the iron-carbon micro-electrolysis pond are equipped with the first water inlet pipe, iron-carbon micro-electrolysis pond side
Upper end be equipped with the first outlet pipe, be interval with the first filter plate, the second filter plate successively from down to up in the iron-carbon micro-electrolysis pond
And strainer, and the iron-carbon micro-electrolysis pond is separated into positioned at described first by first filter plate and second filter plate
First iron-carbon micro-electrolysis layer of filter plate lower end, the second iron-carbon micro-electrolysis between first filter plate and second filter plate
Layer and the 3rd iron-carbon micro-electrolysis layer between second filter plate 4 and the strainer；
The electrodialytic cell is connected by first outlet pipe with the iron-carbon micro-electrolysis pond, edge in the electrodialytic cell
Water (flow) direction is equipped with anode chamber, the first concentrated water room, freshwater room, the second concentrated water room and cathode chamber successively, is set in the anode chamber
There is positive plate, minus plate is equipped with the cathode chamber, and the positive plate is respectively connected with DC power supply with the minus plate, it is described
Anode chamber is separated with the first concentrated water room by first anode film, and the first concentrated water room is cloudy by first with the freshwater room
Pole film separates, and the freshwater room is separated with the second concentrated water room by second plate film, the second concentrated water room and described the moon
Pole room is separated by the second cathodic coating；
The bottom of the first concentrated water room is equipped with the second water inlet pipe, and the bottom of the freshwater room is equipped with the 3rd water inlet pipe, institute
The bottom for stating the second concentrated water room is equipped with the 4th water inlet pipe, and second water inlet pipe, the 3rd water inlet pipe and the described 4th
Water inlet pipe is connected with first outlet pipe；
The top of the first concentrated water room is equipped with the second outlet pipe, and the top of the second concentrated water room is equipped with the 3rd water outlet
Pipe, the top of the freshwater room is equipped with the 4th outlet pipe, and second outlet pipe and the 3rd outlet pipe converge into total
Outlet pipe, the one end of the total outlet pipe away from the electrodialytic cell are respectively positioned on the top in the iron-carbon micro-electrolysis pond；It is described total
The first elevator pump is provided with outlet pipe, the second elevator pump is provided with the 4th outlet pipe；
The activated carbon adsorption tank is connected by the 4th outlet pipe with the electrodialytic cell, the activated carbon adsorption tank
It is interior to be filled with activated carbon, and the upper end of the activated carbon adsorption tank side opposite with the 4th outlet pipe is equipped with the 5th water outlet
Pipe.
Preferably, the positive plate is stainless steel polar plate, and the minus plate is copper polar plate.
Preferably, the filter opening aperture of first filter plate, second filter plate and the strainer is 0.5cm.
Preferably, the first iron-carbon micro-electrolysis layer, the second iron-carbon micro-electrolysis layer and the micro- electricity of three-iron carbon
Iron carbon mix is filled with solution layer, and the particle diameter of the iron carbon mix is 2cm.
Compared with prior art, the beneficial effects of the utility model are：
1) the utility model sets iron-carbon micro-electrolysis pond, be the oxidation-reduction of electrolytic cell and flocculation using iron carbon,
Suction-operated removes the heavy metal ion in electroplating wastewater, inorganic matter and organic matter substantially, obtains water quality net well
Change.
2) set water outlet of the electrodialytic cell to iron-carbon micro-electrolysis pond further to handle in the utility model, and waste water is separated
For concentrated water and fresh water, concentrated water reenters iron-carbon micro-electrolysis pond and is handled, and fresh water then enters activated carbon adsorption tank and carries out depth
Processing, final outflow water being capable of qualified discharge.
Brief description of the drawings
Fig. 1 is the structure diagram of the sewage-treatment plant provided by the utility model using membrane technology.
Description of reference numerals：
The first water inlet pipes of 1-, the first outlet pipes of 2-, the first filter plates of 3-, the second filter plates of 4-, 5 strainers, 6- first anode films, 7-
First cathodic coating, 8- second plate films, the second cathodic coatings of 9-, 10- positive plates, 11- minus plates, the second water inlet pipes of 12-, 13-
Three water inlet pipes, the 4th water inlet pipes of 14-, the second outlet pipes of 15-, the 3rd outlet pipes of 16-, the 4th outlet pipes of 17-, 18- total outlet pipes,
The first elevator pumps of 19-, the second elevator pumps of 20-, the 5th outlet pipes of 21-.
Embodiment
Below in conjunction with the accompanying drawings, specific embodiment of the present utility model is described in detail, it is to be understood that this practicality
New protection domain and from the limitation of embodiment.
A kind of sewage-treatment plant using membrane technology, specifically as shown in Figure 1, including iron-carbon micro-electrolysis pond, electrodialytic cell
And activated carbon adsorption tank, the bottom in iron-carbon micro-electrolysis pond are equipped with the first water inlet pipe 1, the upper end of iron-carbon micro-electrolysis pond side is equipped with
First outlet pipe 2, is interval with the first filter plate 3, the second filter plate 4 and strainer 5 in iron-carbon micro-electrolysis pond successively from down to up, and
And first filter plate 3 and the second filter plate 4 iron-carbon micro-electrolysis pond is separated into the first iron-carbon micro-electrolysis positioned at 3 lower end of the first filter plate
Layer, the second iron-carbon micro-electrolysis layer between the first filter plate 3 and the second filter plate 4 and between the second filter plate 4 and strainer 5
3rd iron-carbon micro-electrolysis layer.
Have in electroplating wastewater containing chromium, zinc, copper, the heavy metal ion such as cadmium, lead, nickel and acid, alkali cyanide etc. very big
The debris of toxicity, biodegradability is poor, is that electroplating wastewater can be carried out good than waste water difficult to deal with, iron-carbon micro-electrolysis
Processing, it is as follows that it purifies the mechanism of waste water：
(1) oxidation-reduction of Fe-C light electrolysis.Since the potential of iron and carbon has notable difference, in electrolyte solution
In the iron filings that contact with each other and carbon form numerous small primary battery, iron is corroded as anode, and carbon is as cathode, and Fe is not
It is disconnected to lose electronics and become Fe2+Into solution, the surface of the electron transmission lost to carbon, as H in solution+When concentration is higher, H+
The surface of carbon obtains electronics and becomes H2Separate out, form gas-evolving electrodes；Under oxygen atmosphere, O2Obtained in carbon surface and be electronically generated H2O
Or OH-, form oxygen uptake corrosion.
Electrode reaction is as follows：
Anode (Fe)：Fe=Fe2++ 2e Eo=-0.44V；
Cathode (C)：2H++ 2e=H2Eo=0.00V；
When aerobic：
Cathode：O2+4H+4e=2H2O Eo=1.23V.
O2+2H2O+4e=4OH-Eo=0.40V
Anode Fe loses electronics and is oxidizing to higher valence state (Fe2+), the H near cathode C+Obtain electronics and produce nascent state
Hydrogen, under aerobic environment, micro- primary battery has higher difference in Electrode Potential, and electrochemical reaction speed is very fast.It is some anti-in sewage
Answer thing, such as H+、O2Deng being used as electron acceptor, reduction occurs in cathode surface and is restored to relatively low valence state.Cathode, anode
Hydrogen in statu nascendi, ferrous ion and the metallic iron of generation have strong reducing property, easily with the heavy metal ion in electroplating sewerage with
And redox reaction occurs for organic matter, heavy metal ion and organic matter directly or indirectly participate in electrode surface, solution
Redox reaction, so that most metal ion is reduced into metal simple-substance precipitation, makes organic matter resolve into CO2And H2O
Etc. the material of small molecule, so that pollutant is removed..
(2) molysite flocculation, absorption and network and bridging action
Iron hydroxide, the ferrous hydroxide polyhydroxylated polymer of light electrolysis product iron ion flocculation generation are deposited with colloid form
The organic pollution and heavy metal ion in electroplating sewerage can be being removed by the suction-operated of colloidal grain surface.Flocculation
The colloidal solid of formation is tiny, and specific surface area is big, and there is very strong adsorption to act on, some in electroplating sewerage are nonpolar to be had
Machine compound has hydrophobicity, it is easy to engages with colloidal grain surface, is incorporated in various forms on colloidal grain surface
Organic matter, migrates with colloidal solid, precipitates, filters, and carries out the various interfacial reactions including degraded, finally from water
Separate.
It should be noted that in Practical Project in use, iron carbon filler is very easy to hardened, hardened rear filler water distribution inequality
Even, practical effect just declines, meanwhile, using the filler of filter tank form filling when replacing, work workload is very big, makes
Into the actual difficulty promoted of the technique.Therefore this uses the first filter plate 3 and the second filter plate 4 by iron-carbon micro-electrolysis pond using new
It is separated into the first iron-carbon micro-electrolysis layer positioned at 3 lower end of the first filter plate, second between the first filter plate 3 and the second filter plate 4
Iron-carbon micro-electrolysis layer and the 3rd iron-carbon micro-electrolysis layer between the second filter plate 4 and strainer 5, i.e., disperse to put by iron carbon filler
Put, reduce the pressure being packed together, so as to reduce hardened possibility, while also intake using 1 lower part of the first water inlet pipe
Mode, have percussion to iron carbon-coating, further reduce hardened possibility.
Explanation is needed further exist for, the filter opening aperture of the first filter plate 3, the second filter plate 4 and strainer 5 is 0.5cm, and
The particle diameter of the iron carbon mix of filling in first iron-carbon micro-electrolysis layer, the second iron-carbon micro-electrolysis layer and the 3rd iron-carbon micro-electrolysis layer
For 2cm, it can so prevent the iron carbon mix of filling in the second iron-carbon micro-electrolysis layer and the 3rd iron-carbon micro-electrolysis layer from falling into
First iron-carbon micro-electrolysis layer, so that easily hardened.
Electrodialytic cell is connected by the first outlet pipe 2 with iron-carbon micro-electrolysis pond, is set successively along water (flow) direction in electrodialytic cell
There are anode chamber, the first concentrated water room, freshwater room, the second concentrated water room and cathode chamber, and anode chamber passes through first with the first concentrated water room
Anode film 6 separates, and the first concentrated water room is separated with freshwater room by the first cathodic coating 7, and freshwater room and the second concentrated water room pass through second
Anode film 8 separates, and the second concentrated water room is separated with cathode chamber by the second cathodic coating 9；Stainless steel anode 10 is equipped with anode chamber, it is cloudy
Copper cathode sheets 11 are equipped with pole room, and positive plate 10 is respectively connected with DC power supply with minus plate 11；The bottom of first concentrated water room is set
There is the second water inlet pipe 12, the bottom of freshwater room is equipped with the 3rd water inlet pipe 13, and the bottom of the second concentrated water room is equipped with the 4th water inlet pipe 14,
And second water inlet pipe 12, the 3rd water inlet pipe 13 and the 4th water inlet pipe 14 are connected with the first outlet pipe 2；The top of first concentrated water room
End is equipped with the second outlet pipe 15, and the top of the second concentrated water room is equipped with the 3rd outlet pipe 16, and the top of freshwater room is equipped with the 4th water outlet
Pipe 17, and the second outlet pipe 15 and the 3rd outlet pipe 16 converge into total outlet pipe 18, total outlet pipe 18 is away from electrodialytic cell
One end is respectively positioned on the top in iron-carbon micro-electrolysis pond；The first elevator pump 19 is provided with total outlet pipe 18, is set on the 4th outlet pipe 17
It is equipped with the second elevator pump 20.
Most heavy metal ion and organic pollution are obtained for removal in the water outlet in iron-carbon micro-electrolysis pond, in order into
One step reduces the content of dirty water pollutant especially heavy metal ion, and the water outlet in iron-carbon micro-electrolysis pond enters electrodialytic cell,
In electrodialytic cell under the action of electrode and DC power supply, metal ion is assembled to cathode, and anion is assembled to anode, so that in electricity
Concentrated water area and fresh water area are formed in dialysis pond, pollutant is enriched with concentrated water area, and fresh water area water quality is substantially up to standard, then
The sewage that concentrated water area is enriched with is returned by total outlet pipe 18 again cyclic oxidation is carried out in iron-carbon micro-electrolysis pond, and fresh water then enters
It is further processed in activated carbon adsorption tank.
Activated carbon adsorption tank is connected by the 4th outlet pipe 17 with electrodialytic cell, and filling is active in activated carbon adsorption tank
Charcoal, activated carbon can adsorb heavy metal ion and inorganic matter micro in fresh water, so that standard water discharge is discharged, reach
Water outlet after mark is discharged by the 5th outlet pipe 21.
In the utility model, disclosed above is only specific embodiment of the utility model, and still, the utility model is implemented
Example is not limited to this, and the changes that any person skilled in the art can think of should all fall into the scope of protection of the utility model.
Claims (4)
1. a kind of sewage-treatment plant using membrane technology, it is characterised in that including iron-carbon micro-electrolysis pond, electrodialytic cell and work
Property charcoal adsorption tank, the bottom in the iron-carbon micro-electrolysis pond is equipped with the first water inlet pipe (1), the upper end of iron-carbon micro-electrolysis pond side
Equipped with the first outlet pipe (2), the first filter plate (3), the second filter plate are interval with the iron-carbon micro-electrolysis pond successively from down to up
(4) and strainer (5), and the iron-carbon micro-electrolysis pond is separated into by first filter plate (3) and second filter plate (4)
The first iron-carbon micro-electrolysis layer positioned at the first filter plate (3) lower end, positioned at first filter plate (3) and second filter plate
(4) the second iron-carbon micro-electrolysis layer between and the micro- electricity of three-iron carbon between second filter plate (4) and the strainer (5)
Solve layer；
The electrodialytic cell is connected by first outlet pipe (2) with the iron-carbon micro-electrolysis pond, edge in the electrodialytic cell
Water (flow) direction is equipped with anode chamber, the first concentrated water room, freshwater room, the second concentrated water room and cathode chamber successively, is set in the anode chamber
There is positive plate (10), be equipped with minus plate (11) in the cathode chamber, and the positive plate (10) connects with the minus plate (11)
Be connected to DC power supply, the anode chamber is separated with the first concentrated water room by first anode film (6), the first concentrated water room with
The freshwater room is separated by the first cathodic coating (7), the freshwater room and the second concentrated water room by second plate film (8) every
Open, the second concentrated water room is separated with the cathode chamber by the second cathodic coating (9)；
The bottom of the first concentrated water room is equipped with the second water inlet pipe (12), and the bottom of the freshwater room is equipped with the 3rd water inlet pipe
(13), the bottom of the second concentrated water room is equipped with the 4th water inlet pipe (14), and second water inlet pipe (12), the 3rd water inlet
Pipe (13) and the 4th water inlet pipe (14) connect with first outlet pipe (2)；
The top of the first concentrated water room is equipped with the second outlet pipe (15), and the top of the second concentrated water room is equipped with the 3rd outlet pipe
(16), the top of the freshwater room is equipped with the 4th outlet pipe (17), and second outlet pipe (15) and the 3rd water outlet
Pipe (16), which converges into total outlet pipe (18), the one end of the total outlet pipe (18) away from the electrodialytic cell, is respectively positioned on the iron carbon
The top of micro cell；The first elevator pump (19) is provided with the total outlet pipe (18), is set on the 4th outlet pipe (17)
It is equipped with the second elevator pump (20)；
The activated carbon adsorption tank is connected by the 4th outlet pipe (17) with the electrodialytic cell, the activated carbon adsorption tank
It is interior to be filled with activated carbon, and the activated carbon adsorption tank and the upper end of the opposite side of the 4th outlet pipe (17) are equipped with the 5th
Outlet pipe (21).
2. the sewage-treatment plant according to claim 1 using membrane technology, it is characterised in that the positive plate (10) is
Stainless steel polar plate, the minus plate (11) are copper polar plate.
3. the sewage-treatment plant according to claim 1 using membrane technology, it is characterised in that first filter plate (3),
The filter opening aperture of second filter plate (4) and the strainer (5) is 0.5cm.
4. the sewage-treatment plant according to claim 1 using membrane technology, it is characterised in that the micro- electricity of the first iron carbon
Iron carbon mix is filled with solution layer, the second iron-carbon micro-electrolysis layer and the 3rd iron-carbon micro-electrolysis layer, and it is described
The particle diameter of iron carbon mix is 2cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721315285.3U CN207330596U (en) | 2017-10-12 | 2017-10-12 | A kind of sewage-treatment plant using membrane technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721315285.3U CN207330596U (en) | 2017-10-12 | 2017-10-12 | A kind of sewage-treatment plant using membrane technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207330596U true CN207330596U (en) | 2018-05-08 |
Family
ID=62367882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721315285.3U Expired - Fee Related CN207330596U (en) | 2017-10-12 | 2017-10-12 | A kind of sewage-treatment plant using membrane technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207330596U (en) |
-
2017
- 2017-10-12 CN CN201721315285.3U patent/CN207330596U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180508 Termination date: 20181012 |