CN202924844U - Waste developing solution purification system - Google Patents
Waste developing solution purification system Download PDFInfo
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- CN202924844U CN202924844U CN 201220304887 CN201220304887U CN202924844U CN 202924844 U CN202924844 U CN 202924844U CN 201220304887 CN201220304887 CN 201220304887 CN 201220304887 U CN201220304887 U CN 201220304887U CN 202924844 U CN202924844 U CN 202924844U
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- waste liquid
- developing solution
- solution
- waste
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Abstract
The utility model relates to a waste developing solution purification system which comprises an acidification pool for performing acidification treatment on waste developing solution, a degradation tank for performing degradation and oxidation treatment on the acidified waste developing solution from the acidification pool, a filtering mechanism for filtering the degraded and oxidized waste developing solution from the degradation tank, and a waste solution storage pool for collecting the filtering solution from the filtering mechanism, wherein the acidification pool transfers the acidified waste developing solution to the degradation tank through a water suction pump; a pneumatic diaphragm pump used for providing pressure for the waste developing solution is arranged between the degradation tank and the filtering mechanism; and the filtering mechanism is a filtering net or multi-filtering cloth. The waste developing solution purification system is simple in structure, the printing ink, dry film residues, heavy metals and other harmful substances are removed, the PH value of the waste solution is regulated to 7-8, the obtained purified solution accords with the sewage discharge standard and is directly discharged or recycled, and the available chemical substances in the waste solution can be recycled through a subsequent extraction process.
Description
Technical field
The utility model relates to PCB and produces the liquid waste disposal technique field, is specifically related to a kind of development waste liquid purification system.
Background technology
Development is the important procedure during PCB produces, and developing procedure is to utilize developing solution to make the active group of unexposed portion in the photosensory membrane and dilute alkaline soln reaction produce soluble substance and make its dissolving in developing machine, keeps simultaneously the dry film of exposed portion not by swelling.Because the main component of developing solution comprises sulfuric acid, nitric acid and benzene, methyl alcohol, silver halide, boric acid, Resorcinol etc., contain the objectionable impuritiess such as printing ink, dry film residue and heavy metal through the development waste liquid height that produces after the developing reaction, if directly discharging will cause very big pollution to environment, simultaneously still tool recycling of the water in the development waste liquid and available chemical substance is worth, and directly development waste liquid will be caused the wasting of resources as discharge of wastewater.In addition, in order to reach better development effect, often in developing solution, add auxiliary agent again, such as defoamer, catalyzer etc., the adding of auxiliary agent makes development waste liquid have more contaminative.Therefore, development waste liquid is carried out effective purifying treatment, be PCB producer realize cleaner production, reducing polluted emission must separate technical problem.
Summary of the invention
In view of this, the technical problems to be solved in the utility model provides a kind of development waste liquid purification system that can effectively purify development waste liquid.
For solving the problems of the technologies described above, the technical scheme that utility model provides is: a kind of development waste liquid purification system, comprise for the acidification pool that development waste liquid is carried out acidification, to from acidification pool through the development waste liquid liquid of acidifying degrade and the degraded groove of oxide treatment, to the filter mechanism that filters through the development waste liquid of degraded and oxide treatment from the degraded groove and be used for accepting waste liquid storage pool from the filtered liquid of filter mechanism.
Above-mentioned acidification pool will transfer to the degraded groove through the development waste liquid liquid of acidifying by lift pump is set.
Be provided with the pneumatic diaphragm pump that is used to development waste liquid that pressure is provided between described degraded groove and the filter mechanism.
Described filter mechanism is filtering net or multi-filtering cloth.
During enforcement, when development waste liquid is discharged from produce line, development waste liquid is caused in the acidification pool, in acidification pool, add sulphuric acid soln again.Acidizing fluid is transferred to the degraded groove by lift pump, after filtration behind mechanism filtration printing ink and the dry film residue, drains into the waste liquid storage pool through the development waste liquid of gained after degraded and the oxide treatment, adds ferrous iron solution again in comprehensive waste liquid storage pool.Wherein pneumatic diaphragm pump is arranged between degraded groove and the filter mechanism and is used to development waste liquid that pressure is provided.
Add sulphuric acid soln in the development waste liquid and carry out acidifying, until the acidizing fluid pH value after the acidifying is 2-3; The printing ink and the dry film residue that produce after the acidifying are skimmed, and acidizing fluid is transferred to the degraded pond; Add the iron sand powder to acidizing fluid, stirred 8-15 minute, add again hydrogen peroxide and active stabilizer after, stirred 40-60 minute; Above-mentioned gained mixed solution is filtered printing ink and dry film residue through multi-filtering cloth, add ferrous iron solution in the filtered liquid again and get purifying waste.
The concentration expressed in percentage by weight of above-mentioned sulphuric acid soln is 2-3%.
The add-on of above-mentioned iron sand powder is that acidizing fluid per ton adds 3-5 kilogram iron sand powder, and the iron sand powder of capacity just can fully be replaced the heavy metal ion in the acidizing fluid, removes the heavy metal in the waste liquid.
The add-on of above-mentioned hydrogen peroxide is that acidizing fluid adding 1-2 per ton rises hydrogen peroxide, and wherein hydrogen peroxide mainly plays oxygenizement to acidizing fluid, regulates simultaneously the potential of hydrogen of acidizing fluid.
Adding iron sand powder, hydrogen peroxide mainly are that acidizing fluid is played Degradation in acidizing fluid.
Above-mentioned active stabilizer is the ASEC active stabilizer that Shenzhen AsiaSat chemical industry company limited produces, and its add-on is that per 25 liters of acidizing fluids adding 0.8-1.5 rises active stabilizer.
Above-mentioned stirring can adopt compressed gas or motor to stir.But preferably adopt motor to stir, can optimize acidizing fluid and iron sand powder, hydrogen peroxide and active stabilizer mixture homogeneity, thereby intensified response effect.
By the waste liquid after the above technical scheme purifying treatment, the objectionable impuritiess such as printing ink, dry film residue and heavy metal can be removed, and the pH value of waste liquid is adjusted to 7-8, the gained purifying waste meets sewage drainage standard directly discharging or again recycling, and the available chemical substance in the waste liquid can be done recycling through subsequent extracted technique simultaneously.
Compared with prior art, the beneficial effects of the utility model are: the simple structure of the utility model utilization, with development waste liquid through acidifying, after adding iron sand powder, hydrogen peroxide and active stabilizer to acidizing fluid again, through multi-filtering, add again ferrous iron solution in the filtered liquid and get purifying waste, thereby the objectionable impuritiess such as printing ink, dry film residue and heavy metal are removed, and the pH value of waste liquid is adjusted to 7-8, the gained purifying waste meets sewage drainage standard directly discharging or again recycling, and the available chemical substance in the waste liquid can be done recycling through subsequent extracted technique simultaneously.
Description of drawings
Fig. 1 is structured flowchart of the present utility model.
Embodiment
For the ease of it will be appreciated by those skilled in the art that below in conjunction with embodiment the utility model is explained in further detail.
A kind of development waste liquid purification system, comprise for the acidification pool 1 that development waste liquid is carried out acidification, to from acidification pool through the development waste liquid liquid of acidifying degrade and the degraded groove 2 of oxide treatment, to the filter mechanism 3 that filters through the development waste liquid of degraded and oxide treatment from the degraded groove and be used for accepting waste liquid storage pool 4 from the filtered liquid of filter mechanism.
In the present embodiment, above-mentioned acidification pool will transfer to the degraded groove through the development waste liquid liquid of acidifying by lift pump 5 is set.Be provided with the pneumatic diaphragm pump 6 that is used to development waste liquid that pressure is provided between degraded groove and the filter mechanism.
Filter mechanism is multi-filtering cloth.
During enforcement, when development waste liquid is discharged from produce line, development waste liquid is caused in the acidification pool, in acidification pool, add sulphuric acid soln again.Acidizing fluid is transferred to the degraded groove by lift pump, after filtration behind mechanism filtration printing ink and the dry film residue, drains into the waste liquid storage pool through the development waste liquid of gained after degraded and the oxide treatment, adds ferrous iron solution again in comprehensive waste liquid storage pool.Wherein pneumatic diaphragm pump is arranged between degraded groove and the filter mechanism and is used to development waste liquid that pressure is provided.
Add sulphuric acid soln in the development waste liquid and carry out acidifying, until the acidizing fluid pH value after the acidifying is 2-3; The printing ink and the dry film residue that produce after the acidifying are skimmed, and acidizing fluid is transferred to the degraded pond; Add the iron sand powder to acidizing fluid, stirred 8-15 minute, add again hydrogen peroxide and active stabilizer after, stirred 40-60 minute; Above-mentioned gained mixed solution is filtered printing ink and dry film residue through multi-filtering cloth, add ferrous iron solution in the filtered liquid again and get purifying waste.
The concentration expressed in percentage by weight of above-mentioned sulphuric acid soln is 2-3%.
The add-on of above-mentioned iron sand powder is that acidizing fluid per ton adds 3-5 kilogram iron sand powder, and the iron sand powder of capacity just can fully be replaced the heavy metal ion in the acidizing fluid, removes the heavy metal in the waste liquid.
The add-on of above-mentioned hydrogen peroxide is that acidizing fluid adding 1-2 per ton rises hydrogen peroxide, and wherein hydrogen peroxide mainly plays oxygenizement to acidizing fluid, regulates simultaneously the potential of hydrogen of acidizing fluid.
Adding iron sand powder, hydrogen peroxide mainly are that acidizing fluid is played Degradation in acidizing fluid.
Above-mentioned active stabilizer is the ASEC active stabilizer that Shenzhen AsiaSat chemical industry company limited produces, and its add-on is that per 25 liters of acidizing fluids adding 0.8-1.5 rises active stabilizer.
Above-mentioned stirring can adopt compressed gas or motor to stir.But preferably adopt motor to stir, can optimize acidizing fluid and iron sand powder, hydrogen peroxide and active stabilizer mixture homogeneity, thereby intensified response effect.
By the waste liquid after the above technical scheme purifying treatment, the objectionable impuritiess such as printing ink, dry film residue and heavy metal can be removed, and the pH value of waste liquid is adjusted to 7-8, the gained purifying waste meets sewage drainage standard directly discharging or again recycling, and the available chemical substance in the waste liquid can be done recycling through subsequent extracted technique simultaneously.The simple structure of the utility model utilization, with development waste liquid through acidifying, after adding iron sand powder, hydrogen peroxide and active stabilizer to acidizing fluid again, through multi-filtering, add again ferrous iron solution in the filtered liquid and get purifying waste, thereby the objectionable impuritiess such as printing ink, dry film residue and heavy metal are removed, and the pH value of waste liquid is adjusted to 7-8, the gained purifying waste meets sewage drainage standard directly discharging or again recycling, and the available chemical substance in the waste liquid can be done recycling through subsequent extracted technique simultaneously.
Above-described embodiment is preferred implementation of the present utility model, and in addition, the utility model can also have other implementations.That is to say that under the prerequisite that does not break away from the present invention's design, any apparent replacement also should fall within the protection domain of the present utility model.
Claims (3)
1. development waste liquid purification system is characterized in that: comprise for the acidification pool (1) that development waste liquid is carried out acidification, to from acidification pool through the development waste liquid liquid of acidifying degrade and the degraded groove (2) of oxide treatment, to the filter mechanism (3) that filters through the development waste liquid of degraded and oxide treatment from the degraded groove and be used for accepting waste liquid storage pool (4) from the filtered liquid of filter mechanism; Described acidification pool will transfer to the degraded groove through the development waste liquid liquid of acidifying by lift pump (5) is set.
2. development waste liquid purification system according to claim 1 is characterized in that: be provided with the pneumatic diaphragm pump (6) that is used to development waste liquid that pressure is provided between described degraded groove and the filter mechanism.
3. development waste liquid purification system according to claim 2, it is characterized in that: described filter mechanism (3) is filtering net or multi-filtering cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220304887 CN202924844U (en) | 2012-06-28 | 2012-06-28 | Waste developing solution purification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220304887 CN202924844U (en) | 2012-06-28 | 2012-06-28 | Waste developing solution purification system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202924844U true CN202924844U (en) | 2013-05-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220304887 Expired - Fee Related CN202924844U (en) | 2012-06-28 | 2012-06-28 | Waste developing solution purification system |
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| Country | Link |
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| CN (1) | CN202924844U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103058414A (en) * | 2012-12-29 | 2013-04-24 | 惠州市保家环境工程有限公司 | Purification method for circuit board development waste liquid |
| CN104028536A (en) * | 2014-05-27 | 2014-09-10 | 上海展华电子有限公司 | Waste reducing system and method |
| CN104556254A (en) * | 2013-10-15 | 2015-04-29 | 沈阳芯源微电子设备有限公司 | Separation and recovery device for realizing liquids with different concentrations by vacuum |
-
2012
- 2012-06-28 CN CN 201220304887 patent/CN202924844U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103058414A (en) * | 2012-12-29 | 2013-04-24 | 惠州市保家环境工程有限公司 | Purification method for circuit board development waste liquid |
| CN104556254A (en) * | 2013-10-15 | 2015-04-29 | 沈阳芯源微电子设备有限公司 | Separation and recovery device for realizing liquids with different concentrations by vacuum |
| CN104028536A (en) * | 2014-05-27 | 2014-09-10 | 上海展华电子有限公司 | Waste reducing system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20130508 Termination date: 20160628 |