CN108609758A - PCB circuit board comprehensive wastewater handles sludge decrement process - Google Patents
PCB circuit board comprehensive wastewater handles sludge decrement process Download PDFInfo
- Publication number
- CN108609758A CN108609758A CN201810281575.3A CN201810281575A CN108609758A CN 108609758 A CN108609758 A CN 108609758A CN 201810281575 A CN201810281575 A CN 201810281575A CN 108609758 A CN108609758 A CN 108609758A
- Authority
- CN
- China
- Prior art keywords
- heavy metal
- filtering material
- metal ion
- absorption filtering
- board comprehensive
- 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
-
- 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
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/06—Sludge reduction, e.g. by lysis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention discloses a kind of PCB circuit board comprehensive wastewaters to handle sludge decrement process, it uses and the heavy metal ion in Adsorption waste water is first being carried out with absorption filtering material with film pretreatment to wiring board comprehensive wastewater, after absorption filtering material saturation heavy metal ion is released with acid regeneration, heavy metal contained by regenerated liquid is recycled by electrolysis mode, precious metal recycling recycling is become, while reducing heavy metal sewage sludge generation.Pass through this synthesis process for treating heavy-metal waste water, it is possible to reduce processing cost is saved in dispensing, and heavy metal recovery recycling largely reduces heavy metal sewage sludge handling simultaneously, saves wastewater treatment expense pollution pressure of the mitigation to environment simultaneously.
Description
Technical field
The invention belongs to field of environment protection, and more specifically more particularly to a kind of processing of PCB circuit board comprehensive wastewater is dirty
Mud decrement process.
Background technology
Existing process circuit plate comprehensive wastewater heavy metal wastewater thereby mostly uses chemical medication administration method processing, in order to remove in waste water
A small amount of heavy metal has added a large amount of lime, ferrous iron, sulfide flocculation aid etc., and processing cost is high, and the sludge of generation is more, goes
Except 100 grammes per square metre metals generate 4000-5000 grams of sludge, the sludge generated daily is calculated with the waste water for handling 1000 tons a day
About 5 tons or so, processing 2000-3000 members per ton, subsequent handle is difficult to handle a huge sum of money after disposal company puts sludge away
Belong to difficult recycling, the sludge treatment of generation mostly uses the method for landfill, with the quickening of development in science and technology process, production scale increase and
The discharge capacity of industrial wastewater is increasing, and the sludge yield as wiring board sewage disposal by-product also accordingly increases.Sludge at
Divide complexity, moisture content is high and is not easy to be dehydrated, and containing harmful heavy metal and pathogenic microorganism etc., seriously threatens the life of the mankind
It deposits, healthy and development.Recycling sludge be facts have proved using the inevitable outlet for being Treatment of Sludge, however surpassed in sewage disposal process
Crossing the heavy metal of half can be transferred in sludge, and the heavy metal in sludge seriously hinders the recycling of sludge.Containing compared with
When the sludge of high heavy metal carries out agricultural, not only increases the content of beary metal in crop body, also cause heavy metal pollution of soil, when
There are when precipitation, a part of heavy metal enters rainwash and underground percolation and is migrated with flow in sludge and soil, and then right
Underground water causes secondary pollution.
Existing wiring board comprehensive wastewater processing, being all made of dosing mode makes the heavy metal ion formation in waste water not dissolve in
Floccule body forms sludge settling removal, and the sludge containing heavy metal belongs to danger wastes, and subsequent processing cost is high, and is difficult to
Processing heavy metal is difficult to recycle.
Invention content
The purpose of the present invention is to provide a kind of PCB circuit board comprehensive wastewaters to handle sludge decrement process, above-mentioned to solve
The problem of being proposed in background technology.
To achieve the above object, the present invention provides the following technical solutions：
A kind of PCB circuit board comprehensive wastewater processing sludge decrement process, includes the following steps：
S1, wiring board comprehensive wastewater is directly filtered with film process equipment, membrane filtration precision 0.01um, is removed in waste water
Suspended matter, colloid, organic matter prevent from blocking heavy metal ion adsorbed filter material；
S2, Adsorption is carried out to heavy metal ions in wastewater absorption filtering material in acid condition；
When cannot work after S3, absorption filtering material absorption heavy metal saturation, regenerative adsorption filter material is handled with acid, absorption filtering material is made to parse
Go out heavy metal ion, absorption filtering material can recycle；
Heavy metal ion in S4, regenerated liquid recycles heavy metal with electrolytic etching of metal equipment, and regenerated liquid recycles after electrolysis, concentration
Not enough add eo-acid supplement；
The water outlet heavy metal that S5, heavy metal adsorption equipment are handled reaches discharge standard, follow-up to adjust back PH to 7-8, and further does
Discharge after biochemical treatment keeps COD, NH4 up to standard.
Preferably, acid regeneration, heavy metal ion are used after heavy metal ion adsorbed filter material is saturated in acid condition in S2
It is parsed from absorption filtering material, sorbing material is enable to restore adsorption function.
Compared with prior art, the beneficial effects of the invention are as follows：Present invention employs first use film to wiring board comprehensive wastewater
Pretreatment is carrying out the heavy metal ion in Adsorption waste water with absorption filtering material, is released with acid regeneration after absorption filtering material saturation
Heavy metal ion, heavy metal contained by regenerated liquid are recycled by electrolysis mode, become precious metal recycling recycling, simultaneously
Reduce heavy metal sewage sludge generation；Medicament use is largely reduced, sludge is reduced and generates while recycling the copper ion in waste water；Pass through
This synthesis process for treating heavy-metal waste water, it is possible to reduce it offers medicine and saves processing cost, heavy metal recovery in wiring board comprehensive wastewater
Recycling, while heavy metal sewage sludge handling is largely reduced, it saves wiring board comprehensive wastewater processing cost and mitigates simultaneously to environment
Pollution pressure.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with specific embodiment, to this
Invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, not
For limiting the present invention.
A kind of PCB circuit board comprehensive wastewater processing sludge decrement process, includes the following steps：
S1, wiring board comprehensive wastewater is directly filtered with film process equipment, membrane filtration precision 0.01um, is removed in waste water
Suspended matter, colloid, organic matter prevent from blocking heavy metal ion adsorbed filter material；
S2, Adsorption is carried out to heavy metal ions in wastewater absorption filtering material in acid condition；Heavy metal in acid condition
It uses acid regeneration, heavy metal ion to be parsed from absorption filtering material after ionic adsorption filter material saturation, keeps sorbing material extensive
Multiple adsorption function；
When cannot work after S3, absorption filtering material absorption heavy metal saturation, regenerative adsorption filter material is handled with acid, absorption filtering material is made to parse
Go out heavy metal ion, absorption filtering material can recycle；
Heavy metal ion in S4, regenerated liquid recycles heavy metal with electrolytic etching of metal equipment, and regenerated liquid recycles after electrolysis, concentration
Not enough add eo-acid supplement；
The water outlet heavy metal that S5, heavy metal adsorption equipment are handled reaches discharge standard, follow-up to adjust back PH to 7-8, and further does
Discharge after biochemical treatment keeps COD, NH4 up to standard.
The process employs first carrying out Adsorption waste water with absorption filtering material with film pretreatment to wiring board comprehensive wastewater
In heavy metal ion, with acid regeneration release heavy metal ion after absorption filtering material saturation, heavy metal passes through electricity contained by regenerated liquid
Solution mode recycles, and becomes precious metal recycling recycling, while reducing heavy metal sewage sludge generation；Largely reduce medicament
It uses, reduces sludge and generate while recycling the copper ion in waste water；Pass through this synthesis process for treating heavy-metal waste water, it is possible to reduce
It offers medicine and saves processing cost, heavy metal recovery recycling in wiring board comprehensive wastewater, while largely reducing heavy metal sewage sludge processing
Take, saves wiring board comprehensive wastewater processing cost pollution pressure of the mitigation to environment simultaneously.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (2)
1. a kind of PCB circuit board comprehensive wastewater handles sludge decrement process, which is characterized in that include the following steps：
S1, wiring board comprehensive wastewater is directly filtered with film process equipment, membrane filtration precision 0.01um, is removed in waste water
Suspended matter, colloid, organic matter prevent from blocking heavy metal ion adsorbed filter material；
S2, Adsorption is carried out to heavy metal ions in wastewater absorption filtering material in acid condition；
When cannot work after S3, absorption filtering material absorption heavy metal saturation, regenerative adsorption filter material is handled with acid, absorption filtering material is made to parse
Go out heavy metal ion, absorption filtering material can recycle；
Heavy metal ion in S4, regenerated liquid recycles heavy metal with electrolytic etching of metal equipment, and regenerated liquid recycles after electrolysis, concentration
Not enough add eo-acid supplement；
The water outlet heavy metal that S5, heavy metal adsorption equipment are handled reaches discharge standard, follow-up to adjust back PH to 7-8, and further does
Discharge after biochemical treatment keeps COD, NH4 up to standard.
2. a kind of PCB circuit board comprehensive wastewater according to claim 1 handles sludge decrement process, it is characterised in that：S2
In use acid regeneration, heavy metal ion to be parsed from absorption filtering material after heavy metal ion adsorbed filter material saturation in acid condition
Come, sorbing material is enable to restore adsorption function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810281575.3A CN108609758A (en) | 2018-04-02 | 2018-04-02 | PCB circuit board comprehensive wastewater handles sludge decrement process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810281575.3A CN108609758A (en) | 2018-04-02 | 2018-04-02 | PCB circuit board comprehensive wastewater handles sludge decrement process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108609758A true CN108609758A (en) | 2018-10-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810281575.3A Pending CN108609758A (en) | 2018-04-02 | 2018-04-02 | PCB circuit board comprehensive wastewater handles sludge decrement process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108609758A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109437472A (en) * | 2018-10-25 | 2019-03-08 | 深圳骏泽环保有限公司 | Wiring board comprehensive wastewater copper taking back and process technique |
| CN109437473A (en) * | 2018-10-25 | 2019-03-08 | 深圳骏泽环保有限公司 | The wiring board comprehensive effluent disposal technology of recyclable copper sulphate |
| CN109467242A (en) * | 2018-10-29 | 2019-03-15 | 深圳骏泽环保有限公司 | Save the processing of wiring board comprehensive wastewater and copper recovery process of base amount |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| HUT49550A (en) * | 1987-06-23 | 1989-10-30 | Istvan Orosz | Process for purification of galvanic sewage water |
| CN101746906A (en) * | 2008-12-03 | 2010-06-23 | 五邑大学 | Method for processing electroplating wastewater with heavy metal ions |
| CN102295321A (en) * | 2011-09-06 | 2011-12-28 | 冯云香 | Method for treating acid copper-containing waste liquor of printed-circuit board and producing electrolytic copper |
| CN104386874A (en) * | 2014-04-08 | 2015-03-04 | 红板（江西）有限公司 | Processing technology for high-concentration waste liquid in circuit board industry |
-
2018
- 2018-04-02 CN CN201810281575.3A patent/CN108609758A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| HUT49550A (en) * | 1987-06-23 | 1989-10-30 | Istvan Orosz | Process for purification of galvanic sewage water |
| CN101746906A (en) * | 2008-12-03 | 2010-06-23 | 五邑大学 | Method for processing electroplating wastewater with heavy metal ions |
| CN102295321A (en) * | 2011-09-06 | 2011-12-28 | 冯云香 | Method for treating acid copper-containing waste liquor of printed-circuit board and producing electrolytic copper |
| CN104386874A (en) * | 2014-04-08 | 2015-03-04 | 红板（江西）有限公司 | Processing technology for high-concentration waste liquid in circuit board industry |
Non-Patent Citations (2)
| Title |
|---|
| 全国勘察设计注册工程师环保专业管理委员会等: "《注册环保工程师专业考试复习教材 水污染防治工程技术与实践 下》", 31 March 2017, 中国环境出版社 * |
| 河南省电力公司: "《火电工程调试技术手册 化学卷》", 30 April 2004, 中国电力出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109437472A (en) * | 2018-10-25 | 2019-03-08 | 深圳骏泽环保有限公司 | Wiring board comprehensive wastewater copper taking back and process technique |
| CN109437473A (en) * | 2018-10-25 | 2019-03-08 | 深圳骏泽环保有限公司 | The wiring board comprehensive effluent disposal technology of recyclable copper sulphate |
| CN109467242A (en) * | 2018-10-29 | 2019-03-15 | 深圳骏泽环保有限公司 | Save the processing of wiring board comprehensive wastewater and copper recovery process of base amount |
| CN109467242B (en) * | 2018-10-29 | 2023-07-28 | 深圳骏泽环保有限公司 | Circuit board comprehensive wastewater treatment and copper recovery process capable of saving alkali consumption |
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Application publication date: 20181002 |