CN207845365U - Electroplating industry pickling waste waters processing system - Google Patents
Electroplating industry pickling waste waters processing system Download PDFInfo
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- CN207845365U CN207845365U CN201820121292.8U CN201820121292U CN207845365U CN 207845365 U CN207845365 U CN 207845365U CN 201820121292 U CN201820121292 U CN 201820121292U CN 207845365 U CN207845365 U CN 207845365U
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- waste waters
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Abstract
The utility model is related to a kind of electroplating industry pickling waste waters processing systems, including sequentially connected pickling waste waters pond, first stage precipitation tank, second-level settling pond, three-level sedimentation basin, mudpan, pH readjustments pond, the first intermediate pool and wastewater recycling device, the mudpan connects sludge concentration tank, it is additionally provided with sour separator between the pickling waste waters pond and first stage precipitation tank, the water inlet of the acid separator is connect with pickling waste waters pond, and the trapped fluid outlet and permeate outlet of the acid separator are connected with first stage precipitation tank and acid-restoring plant respectively；The acid separator uses sour seperation film for separating medium.The pickling waste waters processing system of the utility model recycles the spent acid generated in acid cleaning process, reduces the use of alkali again while saving acid, and reduce the generation of solid residue.
Description
Technical field
The utility model is related to field of waste water treatment, more particularly to electroplating industry pickling waste waters processing system.
Background technology
It is required for progress pickling to be surface-treated in electroplating industry production before copper facing, tin plating, Ni-Speed, pickling
Journey will produce a large amount of spent acid, and such spent acid complicated component, acid concentration is higher, for the spent acid that can not be used, State Ministry of Environmental Protection
Door has stringent management, does not allow direct emission.Processing for this kind of spent acid, the processing method that the country generally uses are to carry out
Neutralisation treatment, liquid can just be discharged by reaching defined pH value, but neutralisation treatment process had not only wasted a large amount of alkali but also generated a large amount of
Residue, although this method solves environmental issue, but very uneconomical, and the useful resources in acid pickle fail recycling profit
With.
Utility model content
To solve the above-mentioned problems, the utility model provides a kind of pickling waste waters processing system, which goes plating
The spent acid generated in industry acid cleaning process is recycled, and reduces the use of alkali again while saving acid, and reduce solid residue
Generation.
The technical solution that the utility model is taken is as follows：
A kind of electroplating industry pickling waste waters processing system, including sequentially connected pickling waste waters pond, first stage precipitation tank, two level
Sedimentation basin, three-level sedimentation basin, mudpan, pH readjustments pond, the first intermediate pool and wastewater recycling device, the sludge settling
Pond connects sludge concentration tank, and sour separator, the acid separation are additionally provided between the pickling waste waters pond and first stage precipitation tank
The water inlet of device is connect with pickling waste waters pond, it is described acid separator trapped fluid outlet and permeate export respectively with level-one
Sedimentation basin is connected with acid-restoring plant；The acid separator uses sour seperation film for separating medium.
Further, the second intermediate pool is provided between the sour separator and first stage precipitation tank, in described second
Between the water inlet in pond connected with the trapped fluid outlet of sour separator, the first water outlet and level-one of second intermediate pool
Sedimentation basin connects.
Further, second intermediate pool is additionally provided with the second water outlet, second water outlet and pickling waste waters
Pond connects.By the way that the second intermediate pool is arranged, can will remain acid solution waste water pass to pickling waste waters pond and sour separator into
The further acid separation of row is complete by separation to acid solution in waste water, subsequently into first stage precipitation tank.
Further, the first pH Real time displaying instrument, the first pH Real time displayings are provided in second intermediate pool
Instrument judges whether there is residual acid solution in waste water.
Further, it is provided with the 2nd pH Real time displaying instrument in pH readjustments pond, the 2nd pH Real time displaying instrument is used
Whether reach emission request in the pH value of test waste water.
Further, the 3rd pH Real time displaying instrument, the 3rd pH Real time displaying instrument are provided in the first stage precipitation tank
Whether the dosage for judging alkali is suitable.
Further, the first stage precipitation tank connects alkali feeding device by pipeline；The second-level settling pond passes through pipeline
Connect PAC feeding devices；The three-level sedimentation basin connects PAM feeding devices by pipeline.The first stage precipitation tank will be for that will give up
Metal ion in water generates hydroxide precipitation, and the second-level settling pond and three-level sedimentation basin are used for tiny iron hydroxide
Suspended matter flocculates and forms bulky grain suspended matter, convenient that bulky grain suspended matter is subsequently carried out mud-water separation.
Further, the wastewater recycling device includes manganese sand filter and reuse pool, the manganese sand filter and the
One intermediate pool connects, and the reuse pool is connect with manganese sand filter.The manganese sand filter was used for the suspension in drainage
Then waste water is passed through reuse pool for workshop reuse again, or is passed through the first intermediate pool again by object, repeat above-mentioned cycle
Several times, until return water reaches using standard.
Further, the sludge concentration tank is connect with plate and frame filter press.The plate and frame filter press be used for wet mud into
Row dehydration can facilitate dewatered sludge transport to be further processed.
Further, the sour seperation film is sulfuric acid seperation film.The sulfuric acid seperation film carries out sulphur using principle of reverse osmosis
The separation of acid.
The utility model is isolated the sulfuric acid in pickling waste waters by the way that sour separator is arranged before first stage precipitation tank
Come, into being recycled in acid-restoring plant, not only avoided neutralisation treatment and needed to waste a large amount of alkali but also generate a large amount of residue,
The sulfuric acid of recycling can be made to utilize again again, save resource, it is economic and environment-friendly.
Description of the drawings
Fig. 1 is the flow chart of the electroplating industry pickling waste waters processing system of the utility model.
Reference sign：1-pickling waste waters pond；2-first stage precipitation tanks；3-second-level settling ponds；4-three-level sedimentation basins；
5-mudpans；6-pH adjust back pond；7-the first intermediate pool；8-wastewater recycling devices；81-manganese sand filters；82—
Reuse pool；9-sludge concentration tanks；10-plate and frame filter press；11-sour separators；12-acid-restoring plants；13-alkali add
Expect device；14-PAC feeding devices；15-PAM feeding devices；16-the second intermediate pool.
Specific implementation mode
The principles of the present invention and feature are described below in conjunction with attached drawing, example is served only for explaining this practicality
It is novel, it is not intended to limit the scope of the utility model.
A kind of electroplating industry pickling waste waters processing system, including sequentially connected pickling waste waters pond 1, first stage precipitation tank 2, two
Grade sedimentation basin 3, three-level sedimentation basin 4, mudpan 5, pH readjustments pond 6, the first intermediate pool 7 and wastewater recycling device 8, it is described
Mudpan 5 connects sludge concentration tank 9, and sour separator is additionally provided between the pickling waste waters pond 1 and first stage precipitation tank 2
11, the water inlet of the acid separator 11 connect with pickling waste waters pond 1, the trapped fluid outlet of the acid separator 11 with it is saturating
Liquid outlet is crossed respectively to be connected with first stage precipitation tank 2 and acid-restoring plant 12；The acid separator 11 uses sour seperation film to divide
From medium.
Specifically, pickling waste waters is introduced into pickling waste waters pond 1, the water inlet in the pickling waste waters pond 1 and sour separator 11
Mouth connection detaches the acid in waste water through sour separator 11.The sour separator 11 of the utility model is using sour seperation film conduct
Separating medium, the acid seperation film is using the sour seperation films of INDUSTRIAL RO1 8040 of GE companies production, and the acid seperation film is only
Acid and water can be allowed to pass through, other substances cannot pass through, and separation principle is principle of reverse osmosis, i.e., using pressure difference as motive force,
Concentrated solution side applies the pressure for being more than osmotic pressure, and the solvent in concentrated solution can be flowed to weak solution, thus will be in solution
Solvent separate.Permeate outlet of the acid solution separated through sour separator 11 is returned into acid-restoring plant 12
It receives and recycles.Other cannot be retained down by the substance of sour seperation film, and the trapped fluid outlet through sour separator 11 enters
First stage precipitation tank 2, the first stage precipitation tank 2 are connect with NaOH alkali feeding device 13, and NaOH can neutralize remaining acid, moreover it is possible to remove
Then the metal ions such as the iron in water sequentially enter the second-level settling pond 3 being connect with PAC feeding devices 14 and feed with PAM again
The three-level sedimentation basin 4 that device 15 connects, iron hydroxide suspended matter tiny in water is flocculated and forms bulky grain suspended matter, convenient
Bulky grain suspended matter is subsequently subjected to mud-water separation.The precipitation generated after three-level sedimentation basin 4 is periodically discharged into sludge settling
Mud-water separation is carried out in pond 5, the sludge after mud-water separation enters sludge concentration tank 9, and supernatant enters pH readjustments pond 6, will
PH recalls to 6-9, and subsequently into the first intermediate pool 7, a part of qualified discharge, a part enters at wastewater recycling device 8
Reason.
Since the acid in electroplating industry pickling waste waters is mainly sulfuric acid, the sour seperation film used in the utility model is sulphur
Sour seperation film.
The second intermediate pool 16 is additionally provided between the sour separator 11 and first stage precipitation tank 2 of the utility model, it is described
The water inlet of second intermediate pool 16 and the trapped fluid outlet of sour separator 11 connect, and the first of second intermediate pool 16
Water outlet is connect with first stage precipitation tank 2.
By the way that the second intermediate pool 16 is arranged, for remaining acid solution in waste water to be further separated out, described second
Intermediate pool 16 is additionally provided with the second water outlet, and second water outlet is connect with pickling waste waters pond 1, by the second intermediate water
First pH Real time displaying instrument is set in pond 16, can show the pH value of the waste water through sour separator 11, pass through the second intermediate water
PH value in pond 16 can determine whether also there is residual acid solution to lead to it through the second water outlet if there is remaining acid solution in waste water
Enter pickling waste waters pond 1, then be passed through the water inlet of sour separator 11 by pickling waste waters pond 1, carries out the separation of second of acid solution, directly
PH to waste water in the second intermediate pool 16 is up to standard, enters first stage precipitation tank 2 through the first water outlet.In the first stage precipitation tank 2
It is provided with the 3rd pH Real time displaying instrument, according to the pH value that the 3rd pH Real time displaying instrument is surveyed, adjustment in time is precipitated in level-one
The amount of dosing in pond 2 makes the pH value of first stage precipitation tank 2 in the range of 9-10, the best precipitation of this ranging from metal ion such as iron
Range.
The pH readjustments are provided with the 2nd pH Real time displaying instrument in pond 6, are returned by the value that the 2nd pH Real time displaying instrument is surveyed
The pH value for adjusting supernatant, ensures that the pH value of waste water reaches emission request.
The wastewater recycling device 8 includes manganese sand filter 81 and reuse pool 82.
Waste water in pH readjustments pond 6 enters the first intermediate pool 7, and a part reaches emission request and just emits,
Below standard waste water is promoted to manganese sand filter 81 by booster pump, removes the suspended matter in water removal, then flow to reuse pool again
82 use for workshop or flow to the first intermediate pool 7, repeat the above process to return water and reach using standard.
The sludge concentration tank 9 of the utility model is connect with plate and frame filter press 10, the sludge row after the precipitation of mudpan 5
Enter sludge concentration tank 9 and carry out initial concentration, then plate and frame filter press 10 is taken to by sludge diaphragm pump, wet mud is carried out at dehydration
Reason can facilitate dewatered sludge transport to be further processed.
The utility model is isolated the sulfuric acid in pickling waste waters by the way that sour separator is arranged before first stage precipitation tank
Come, into being recycled in acid-restoring plant, not only avoided neutralisation treatment and needed to waste a large amount of alkali but also generate a large amount of residue,
The sulfuric acid of recycling can be made to utilize again again, save resource, it is economic and environment-friendly.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all in this practicality
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (10)
1. a kind of electroplating industry pickling waste waters processing system, including sequentially connected pickling waste waters pond, first stage precipitation tank, two level are heavy
Shallow lake pond, three-level sedimentation basin, mudpan, pH readjustments pond, the first intermediate pool and wastewater recycling device, the mudpan
Connect sludge concentration tank, which is characterized in that sour separator, institute are additionally provided between the pickling waste waters pond and first stage precipitation tank
The water inlet for stating sour separator is connect with pickling waste waters pond, the trapped fluid outlet and permeate outlet point of the acid separator
It is not connected with first stage precipitation tank and acid-restoring plant；The acid separator uses sour seperation film for separating medium.
2. electroplating industry pickling waste waters processing system according to claim 1, which is characterized in that it is described acid separator with
The second intermediate pool, the trapped fluid of the water inlet of second intermediate pool and sour separator are provided between first stage precipitation tank
Outlet connection, the first water outlet of second intermediate pool are connect with first stage precipitation tank.
3. electroplating industry pickling waste waters processing system according to claim 2, which is characterized in that second intermediate pool
It is additionally provided with the second water outlet, second water outlet is connect with pickling waste waters pond.
4. electroplating industry pickling waste waters processing system according to claim 2, which is characterized in that second intermediate pool
Inside it is provided with the first pH Real time displaying instrument.
5. electroplating industry pickling waste waters processing system according to claim 1, which is characterized in that the pH readjustments are set in pond
It is equipped with the 2nd pH Real time displaying instrument.
6. electroplating industry pickling waste waters processing system according to claim 1, which is characterized in that in the first stage precipitation tank
It is provided with the 3rd pH Real time displaying instrument.
7. electroplating industry pickling waste waters processing system according to claim 1, which is characterized in that the first stage precipitation tank is logical
Piping connects alkali feeding device；The second-level settling pond connects PAC feeding devices by pipeline；The three-level sedimentation basin passes through
Pipeline connects PAM feeding devices.
8. electroplating industry pickling waste waters processing system according to claim 1, which is characterized in that the wastewater recycling device
Including manganese sand filter and reuse pool, the manganese sand filter is connect with the first intermediate pool, the reuse pool and manganese sand
Filter connects.
9. according to claim 1-8 any one of them electroplating industry pickling waste waters processing systems, which is characterized in that the sludge
Concentration basin is connect with plate and frame filter press.
10. according to claim 1-8 any one of them electroplating industry pickling waste waters processing systems, which is characterized in that the acid
Seperation film is sulfuric acid seperation film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820121292.8U CN207845365U (en) | 2018-01-24 | 2018-01-24 | Electroplating industry pickling waste waters processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820121292.8U CN207845365U (en) | 2018-01-24 | 2018-01-24 | Electroplating industry pickling waste waters processing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207845365U true CN207845365U (en) | 2018-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820121292.8U Active CN207845365U (en) | 2018-01-24 | 2018-01-24 | Electroplating industry pickling waste waters processing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114656097A (en) * | 2020-12-22 | 2022-06-24 | 江苏泽宇环境工程有限公司 | Treatment process of metallurgical sewage |
-
2018
- 2018-01-24 CN CN201820121292.8U patent/CN207845365U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114656097A (en) * | 2020-12-22 | 2022-06-24 | 江苏泽宇环境工程有限公司 | Treatment process of metallurgical sewage |
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