CN104445744A - Process for treating and recycling nickel-containing wastewater by adopting ion fiber and membrane - Google Patents
Process for treating and recycling nickel-containing wastewater by adopting ion fiber and membrane Download PDFInfo
- Publication number
- CN104445744A CN104445744A CN201410782030.2A CN201410782030A CN104445744A CN 104445744 A CN104445744 A CN 104445744A CN 201410782030 A CN201410782030 A CN 201410782030A CN 104445744 A CN104445744 A CN 104445744A
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- CN
- China
- Prior art keywords
- nickel
- washing water
- water
- ion fiber
- reuse
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/16—Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
Abstract
The invention relates to a process for treating and recycling nickel-containing wastewater by adopting an ion fiber and a membrane. The process comprises the following steps: (1) treating nickel washing water to make the nickel washing water reach the standard, namely collecting the nickel washing water into a regulating tank, pumping the nickel washing water into an SS treatment system by using a pump, and feeding the nickel washing water into an ion fiber system; (2) reusing nickel (metal) ions, namely eluting the nickel washing water with an ion fiber to obtain the solution of NiCl, and purifying the nickel salt, wherein the purified nickel salt is used for producing circuit boards; and (3) recycling the nickel washing water for production, namely feeding the nickel washing water into a recycled-water treatment system, pumping the nickel washing water into an activated carbon filter by using an acid and alkali resisting pump, then feeding the nickel washing water into a reverse osmosis membrane system by using a security filter, and collecting effluent into a water tank. The process provided by the invention has the advantages that the zero discharge of nickel from the water discharge hole of a workshop can be realized, the nickel (metal) ions in the nickel washing water can be recycled so that the effect of avoiding the waste of valuable heavy metals can be achieved, in addition, the treatment cost of the nickel washing water can be reduced, valuable heavy metals and water resources can be reused, and corresponding economic and social benefits can be achieved.
Description
Technical field
The present invention relates to wiring board industry energy-saving field of Environment Protection, especially relate to a kind of nickel-containing waste water and adopt ion fiber in conjunction with embrane method treatment for reuse technique.
Background technology
Plating utilizes electrochemical method to decorate metal and nonmetallic surface, protects and obtain a kind of technological process of some new performance.Nickel layer has a lot of excellent performance, and therefore its application is almost throughout all departments of modern industry.In electroplating industry, the turnout of nickel layer is only second to zinc coating and occupies second.Industrial utilization plating (solution) technique is purified or produces nickel goods, and these processes all need to clean plating piece or product.Cleaning is an important link in electronickelling process.No matter be in treatment before plating, plating posttreatment and electroplating engineering, plating piece all will clean before entering into another kind of solution from a kind of solution.So poaching wastewater is the topmost source of nickel-plating waste water, almost account for 80 more than % of plating shop wastewater discharge.
Prior art single use reverse osmosis membrane mode reduces conductance to original sub-block and carries out reuse, mainly there is effluent quality instability, reuse cost is large, the defect such as have valency heavy metal recovery to utilize at the bottom of the end, the complicated availability of the dense water water quality of output in reuse water system complex, waste water.
Summary of the invention
For overcoming the problems referred to above, the present invention adopts following technical scheme:
1. nickel-containing waste water adopts ion fiber in conjunction with an embrane method treatment for reuse technique, comprising:
(1) process up to standard of nickel washing water: the nickeliferous washing water produced in wiring board manufacturing processed is collected in equalizing tank, through acid and alkali-resistance lift pump to filtering system; Through pretreated nickeliferous washing water, enter ion fiber system, by the exchange adsorption effect of ion fiber, adsorption treatment is carried out to heavy metal ion such as the nickel in nickeliferous washing water, calcium, magnesium.
(2) the reusing of nickel metal ion: adsorb saturated after ion fiber, carry out wash-out process with acid, the elutriant obtained and NiCl solution, the nickel salt after concentrated purification is back to wiring board manufacturing processed as raw material.
(3) the production reuse of nickel washing water: the nickel washing water after the process of ion fiber system enters reuse water treatment system, namely nickel washing water up to standard promotes through acid and alkali-proof pump, enter activated charcoal filter removing small-particle impurity, then enter reverse osmosis membrane system through cartridge filter, effluent collection is in product water tank.
In nickeliferous washing water after the process of multipole ion fiber system, nickel ion content is lower than 0.1 mg/L, reaches emission standard.
Reuse water system water outlet conductivity, lower than 20 μ s/cm, reaches workshop water requirement, reuses as nickel washing water.
Advantage of the present invention is: the discharge nickel that can realize workshop water outlet is zero, and what also can realize nickel metal ion in nickeliferous washing water is cycled to repeat utilization, reaches the effect avoiding valency heavy metal to waste; The processing cost of nickel washing water can be reduced simultaneously, realize the recycling having valency heavy metal and water resources simultaneously, corresponding economic benefit and social benefit can be produced.
Accompanying drawing explanation
Fig. 1 is process flow sheet of the present invention.
Embodiment
As shown in Figure 1, a kind of nickel-containing waste water adopts ion fiber in conjunction with embrane method treatment for reuse technique, comprising:
(1) process up to standard of nickel washing water: the nickeliferous washing water produced in wiring board manufacturing processed is collected in equalizing tank, through acid and alkali-resistance lift pump to SS filtering system; Through pretreated nickeliferous washing water, enter ion fiber system, by the exchange adsorption effect of ion fiber, adsorption treatment is carried out to heavy metal ion such as the nickel in nickeliferous washing water, calcium, magnesium.
(2) the reusing of nickel metal ion: adsorb saturated after ion fiber, carry out wash-out process with acid, the elutriant obtained and NiCl solution, the nickel salt after concentrated purification is back to wiring board manufacturing processed as raw material.
(3) the production reuse of nickel washing water: the nickel washing water after the process of ion fiber system enters reuse water treatment system, namely nickel washing water up to standard promotes through acid and alkali-proof pump, enter activated charcoal filter removing small-particle impurity, then enter reverse osmosis membrane system through cartridge filter, effluent collection is in product water tank.
In nickeliferous washing water after the process of multipole ion fiber system, nickel ion content is lower than 0.1 mg/L, reaches emission standard.
Reuse water system water outlet conductivity, lower than 20 μ s/cm, reaches workshop water requirement, reuses as nickel washing water.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (5)
1. nickel-containing waste water adopts ion fiber in conjunction with an embrane method treatment for reuse technique, it is characterized in that, comprising:
(1) process up to standard of nickel washing water: the nickeliferous washing water produced in wiring board manufacturing processed is collected in equalizing tank, through acid and alkali-resistance lift pump to filtering system; Through pretreated nickeliferous washing water, enter ion fiber system, by the exchange adsorption effect of ion fiber, adsorption treatment is carried out to heavy metal ion such as the nickel in nickeliferous washing water, calcium, magnesium.
2.(2) the reusing of nickel metal ion: adsorb saturated after ion fiber, carry out wash-out process with acid, the elutriant obtained and NiCl solution, the nickel salt after concentrated purification is back to wiring board manufacturing processed as raw material.
3.(3) the production reuse of nickel washing water: the nickel washing water after the process of ion fiber system enters reuse water treatment system, namely nickel washing water up to standard promotes through acid and alkali-proof pump, enter activated charcoal filter removing small-particle impurity, then enter reverse osmosis membrane system through cartridge filter, effluent collection is in product water tank.
4. a kind of nickel-containing waste water according to claim 1 adopts ion fiber in conjunction with embrane method treatment for reuse technique, it is characterized in that: in the nickeliferous washing water after the process of multipole ion fiber system, nickel ion content is lower than 0.1 mg/L.
5. a kind of nickel-containing waste water according to claim 1 adopts ion fiber in conjunction with embrane method treatment for reuse technique, it is characterized in that: reuse water system water outlet conductivity is lower than 20 μ s/cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410782030.2A CN104445744A (en) | 2014-12-18 | 2014-12-18 | Process for treating and recycling nickel-containing wastewater by adopting ion fiber and membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410782030.2A CN104445744A (en) | 2014-12-18 | 2014-12-18 | Process for treating and recycling nickel-containing wastewater by adopting ion fiber and membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104445744A true CN104445744A (en) | 2015-03-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410782030.2A Pending CN104445744A (en) | 2014-12-18 | 2014-12-18 | Process for treating and recycling nickel-containing wastewater by adopting ion fiber and membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104445744A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1796312A (en) * | 2004-12-20 | 2006-07-05 | 上海轻工业研究所有限公司 | Method for recovering nickel and removing impurity from nickel-plated wastewater |
| CN103693711A (en) * | 2013-11-12 | 2014-04-02 | 郑州大学 | Method for treating nickel/copper-containing electroplating wastewater by using weak acid ion exchange fibers |
-
2014
- 2014-12-18 CN CN201410782030.2A patent/CN104445744A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1796312A (en) * | 2004-12-20 | 2006-07-05 | 上海轻工业研究所有限公司 | Method for recovering nickel and removing impurity from nickel-plated wastewater |
| CN103693711A (en) * | 2013-11-12 | 2014-04-02 | 郑州大学 | Method for treating nickel/copper-containing electroplating wastewater by using weak acid ion exchange fibers |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |
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| WD01 | Invention patent application deemed withdrawn after publication |