CN108218036A - A kind of method for removing circuit board Cu in waste water ion - Google Patents
A kind of method for removing circuit board Cu in waste water ion Download PDFInfo
- Publication number
- CN108218036A CN108218036A CN201810075806.5A CN201810075806A CN108218036A CN 108218036 A CN108218036 A CN 108218036A CN 201810075806 A CN201810075806 A CN 201810075806A CN 108218036 A CN108218036 A CN 108218036A
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- Prior art keywords
- reaction
- supernatant
- reaction tank
- waste water
- circuit board
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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
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- 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
- C02F2001/007—Processes including a sedimentation step
-
- 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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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Removal Of Specific Substances (AREA)
Abstract
A kind of method for removing circuit board Cu in waste water ion, includes the following steps：S1：Pending waste water is continuously entered into neutralization reactor, acid-base neutralization is carried out in neutralization reactor, adjustment PF values are 7.0~7.5；S2：Water outlet in S1 is continuously entered into flocculation reactor, aluminium polychloride and polyacrylamide are added in flocculation reactor, carries out flocculation reaction；S3：Water outlet in S2 is continuously entered into primary clarifier, carries out separation of solid and liquid；S4：Supernatant in S3 is continuously entered and is reacted inside integral type intermittent reaction clarifying basin.The present invention solves to be discharged the situation that copper ion is unable to stably reaching standard after leading to processing when current circuit board waste water copper ion caused by when the emissions groove inverted engine of workshop is significantly stirred, and reduces the input amount of medicament, water treatment effect is improved while reducing production cost.
Description
Technical field
The present invention relates to the technical field handled containing heavy metal industrial effluent, more particularly to a kind of removal circuit board waste water
The method of middle copper ion.
Background technology
Copper is trace element necessary to life, but excessive copper be all to human body, animals and plants and water plant it is harmful,
In printed circuit board (PCB) technological process of production, the processes such as nog plate, weak burn into electro-coppering discharge waste water in containing copper from
Son；Contain copper ion and complexing agent NH in the waste water of the processes discharge such as erosion plate, electroless copper plating4OH, EDTA and sodium potassium tartrate tetrahydrate
Deng.
In recent years, it is more to complex copper wastewater treatment research to have electrolysis, absorption method, coacervation and ion-exchange.
In the plating process, it needs periodically to replace bath solution, it will cause the concentration before wastewater treatment anxious in a short time
Play rises, it is more likely that the copper ion after handling in sewage can be caused exceeded.Therefore in the content calculation medicament according to copper ion
Medicament can be caused excessive due to the fluctuation of water quality when input amount, increase the cost of production, while environment is also resulted in
Pollution.
Invention content
The purpose of the present invention is overcoming shortcoming of the prior art, a kind of removal circuit board Cu in waste water ion is provided
Method, go out after solving to cause when current circuit board waste water copper ion caused by when the emissions groove inverted engine of workshop is significantly stirred processing
Water copper ion is unable to the situation of stably reaching standard, reduces the input amount of medicament, and wastewater treatment effect is improved while reducing production cost
Fruit.
In order to solve the above technical problems, the present invention is solved by following technical proposals：
A kind of method for removing circuit board Cu in waste water ion, includes the following steps：
S1：Pending waste water is continuously entered into neutralization reactor, acid-base neutralization is carried out in neutralization reactor, adjusts PH
Be worth is 7.0~7.5；
S2：Water outlet in S1 is continuously entered into flocculation reactor, aluminium polychloride and poly- third is added in flocculation reactor
Acrylamide carries out flocculation reaction；
S3：Water outlet in S2 is continuously entered into primary clarifier, carries out separation of solid and liquid；
S4：Supernatant in S3 is continuously entered inside integral type intermittent reaction clarifying basin, wherein integral type intermittent reaction
The inside for including three reaction tanks, supernatant first being entered to the first reaction tank of clarifying basin, during certain height and position to be achieved
Supernatant in S3 is continuously entered to the inside of the second reaction tank, while medicament is added in the first reaction tank, it is heavy to carry out reaction
The supernatant in S3 carried out when the supernatant inside the second reaction tank of forming sediment reaches certain height to continuously enter third reaction
The inside in pond, while the supernatant in the first reaction tank is mixed to join to the inside of the second reaction tank, and in the second reaction tank
Interior addition proper amount of medication carry out reaction precipitation, the supernatant inside third reaction tank will be in S3 when reaching certain height
Supernatant continuously enter the inside of the first reaction tank, at the same detect the content of copper ion in the second reaction tank supernatant and
The content of medicament, when the standard for reaching discharge if discharged, supernatant is emitted into clear water reserviors, by second if below standard
Supernatant in reaction tank, which enters in third reaction tank and adds in medicament, carries out reaction precipitation, and circular treatment is marked with reaching discharge
It is accurate；
The step of medicament reaction precipitation is added in the S4, which is additionally included in reaction tank, adds in vulcanized sodium and ferrous sulfate, control
Waste water pH value processed is 9.5~10.0, adds polyaluminum ferric chloride, and control pH value is 7.5~8.0, adds polyacrylamide,
It staticly settles 1.0~2.0 hours；
Specifically, the sediment further included in the S4 steps after being precipitated to reaction is discharged.
The sediment obtained in S3 and S4 steps is collected specifically, further including, and concentration is carried out to it, and
Obtained liquid is drained into again in flocculation tank and carries out advanced treating.
Specifically, the dosage of the vulcanized sodium is 50kg/1000 cubes of waste water.
The present invention has the following advantages compared with prior art and advantageous effect：
Waste water is carried out precipitation process by a kind of method for removing circuit board Cu in waste water ion of the present invention first, then will processing
Waste water afterwards continuously enters the inside of integral type intermittent reaction clarifying basin, and reached waste water continuously enters processing, improves useless
The working efficiency of water process, while intermittent reaction processing is carried out to waste water respectively using three reaction tanks, with traditional circuit board
Waste water is compared except process for copper, and the larger copper-containing wastewater treatment effeciency of fluctuation is increased substantially, and using in reaction tank
Residual dose in supernatant carries out reuse processing, avoids the increase of dosing, and optimization reduces dosage up to 40%,
Reduce production cost, controllability is higher.
Description of the drawings
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a kind of flow chart for the method for removing circuit board Cu in waste water ion of the present invention.
Specific embodiment
With reference to embodiment and attached drawing, the present invention is described in further detail, but embodiments of the present invention are unlimited
In this.
As shown in Figure 1, the specific implementation process of the present invention is as follows：A kind of method for removing circuit board Cu in waste water ion,
Include the following steps：
S1：Pending waste water is continuously entered into neutralization reactor, acid-base neutralization is carried out in neutralization reactor, adjusts PH
Be worth is 7.0~7.5；
S2：Water outlet in S1 is continuously entered into flocculation reactor, aluminium polychloride and poly- third is added in flocculation reactor
Acrylamide carries out flocculation reaction；By carrying out flocculation reaction, the bulky grain in waste water after reaction is precipitated.
S3：Water outlet in S2 is continuously entered into primary clarifier, carries out separation of solid and liquid；
S4：Supernatant in S3 is continuously entered inside integral type intermittent reaction clarifying basin, wherein integral type intermittent reaction
The inside for including three reaction tanks, supernatant first being entered to the first reaction tank of clarifying basin, during certain height and position to be achieved
Supernatant in S3 is continuously entered to the inside of the second reaction tank, while medicament is added in the first reaction tank, it is heavy to carry out reaction
The supernatant in S3 carried out when the supernatant inside the second reaction tank of forming sediment reaches certain height to continuously enter third reaction
The inside in pond, while the supernatant in the first reaction tank is mixed to join to the inside of the second reaction tank, and in the second reaction tank
Interior addition proper amount of medication carry out reaction precipitation, the supernatant inside third reaction tank will be in S3 when reaching certain height
Supernatant continuously enter the inside of the first reaction tank, at the same detect the content of copper ion in the second reaction tank supernatant and
The content of medicament, when the standard for reaching discharge if discharged, supernatant is emitted into clear water reserviors, by second if below standard
Supernatant in reaction tank, which enters in third reaction tank and adds in medicament, carries out reaction precipitation, and circular treatment is marked with reaching discharge
It is accurate；By the way that by the reaction and processing of supernatant progress again in reaction tank, one side improves wastewater treatment essence effect, the opposing party
Face is simultaneously adequately reacted the extra medicament of supernatant liquid hold-up in previous reaction tank, so as to reduce the dispensing of dose
Amount saves dose input.
The step of medicament reaction precipitation is added in the S4, which is additionally included in reaction tank, adds in vulcanized sodium and ferrous sulfate, control
Waste water pH value processed is 9.5~10.0, adds polyaluminum ferric chloride, and control pH value is 7.5~8.0, adds polyacrylamide,
It staticly settles 1.0~2.0 hours；Advanced treating is carried out to the copper ion in waste water using medicament, reaches absorption and precipitation
Effect, then discharged by the traveling of sediment.
Specifically, the sediment further included in the S4 steps after being precipitated to reaction is discharged.
The sediment obtained in S3 and S4 steps is collected specifically, further including, and concentration is carried out to it, and
Obtained liquid is drained into again in flocculation tank and carries out advanced treating.Due to containing a large amount of water in obtained sediment
Point, wherein the copper ion retained, it is therefore desirable to moisture therein be carried out after-treatment, improve and Cu in waste water ion is gone
Except effect.
Specifically, the dosage of the vulcanized sodium is 50kg/1000 cubes of waste water.It is carried out by using vulcanized sodium and copper ion
Reaction, so as to which copper ion be made to be discharged in the form of copper sulfide precipitation object.
Above-described embodiment is the preferable embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any Spirit Essences without departing from the present invention with made under principle change, modification, replacement, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (4)
- A kind of 1. method for removing circuit board Cu in waste water ion, which is characterized in that include the following steps：S1：Pending waste water is continuously entered into neutralization reactor, acid-base neutralization is carried out in neutralization reactor, adjustment pH value is 7.0~7.5；S2：Water outlet in S1 is continuously entered into flocculation reactor, aluminium polychloride and polyacrylamide are added in flocculation reactor Amine carries out flocculation reaction；S3：Water outlet in S2 is continuously entered into primary clarifier, carries out separation of solid and liquid；S4：Supernatant in S3 is continuously entered inside integral type intermittent reaction clarifying basin, wherein integral type intermittent reaction is clarified The inside for including three reaction tanks, supernatant first being entered to the first reaction tank in pond, by S3 during certain height and position to be achieved In supernatant continuously enter the inside of the second reaction tank, while medicament is added in the first reaction tank, carry out reaction precipitation treat The supernatant in S3 carried out when supernatant inside second reaction tank reaches certain height to continuously enter third reaction tank Inside, while the supernatant in the first reaction tank is mixed to join to the inside of the second reaction tank, and in the second reaction tank It adds in proper amount of medication and carries out reaction precipitation, by the supernatant in S3 when the supernatant inside third reaction tank reaches certain height Liquid continuously enter the inside of the first reaction tank, while detects the content of copper ion and medicament in the second reaction tank supernatant Content, when the standard for reaching discharge if discharged, supernatant is emitted into clear water reserviors, if below standard by second reaction Supernatant in pond, which enters in third reaction tank and adds in medicament, carries out reaction precipitation, and circular treatment is to reach discharge standard；The step of medicament reaction precipitation is added in the S4, which is additionally included in reaction tank, adds in vulcanized sodium and ferrous sulfate, and control is useless Water ph value is 9.5~10.0, adds polyaluminum ferric chloride, control pH value is 7.5~8.0, adds polyacrylamide, is stood Precipitation 1.0~2.0 hours.
- A kind of 2. method for removing circuit board Cu in waste water ion according to claim 1, which is characterized in that the S4 steps The sediment after precipitating reaction is further included in rapid to discharge.
- 3. it is according to claim 1 it is a kind of remove circuit board Cu in waste water ion method, which is characterized in that further include by The sediment obtained in S3 and S4 steps is collected, and concentration is carried out to it, and obtained liquid is drained into again Advanced treating is carried out in flocculation tank.
- A kind of 4. method for removing circuit board Cu in waste water ion according to claim 1, which is characterized in that the vulcanization The dosage of sodium is 50kg/1000 cubes of waste water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810075806.5A CN108218036A (en) | 2018-01-26 | 2018-01-26 | A kind of method for removing circuit board Cu in waste water ion |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810075806.5A CN108218036A (en) | 2018-01-26 | 2018-01-26 | A kind of method for removing circuit board Cu in waste water ion |
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| CN108218036A true CN108218036A (en) | 2018-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810075806.5A Pending CN108218036A (en) | 2018-01-26 | 2018-01-26 | A kind of method for removing circuit board Cu in waste water ion |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109607856A (en) * | 2018-12-17 | 2019-04-12 | 大连崇达电路有限公司 | A kind of route board industry integrated waste water treatment method |
| CN110746027A (en) * | 2019-11-18 | 2020-02-04 | 爱环吴世（苏州）环保股份有限公司 | Treatment method of chemical copper waste liquid |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101054247A (en) * | 2007-05-29 | 2007-10-17 | 周泽宇 | Integrated processing technique for waste water in breadboard production |
| CN103183421A (en) * | 2011-12-28 | 2013-07-03 | 北大方正集团有限公司 | Treatment method for waste water containing complex copper |
| CN104944698A (en) * | 2015-06-12 | 2015-09-30 | 湖南景翌湘台环保高新技术开发有限公司 | Two-level copper removing technology for treating low-concentration comprehensive wastewater in PCB electroplating |
-
2018
- 2018-01-26 CN CN201810075806.5A patent/CN108218036A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101054247A (en) * | 2007-05-29 | 2007-10-17 | 周泽宇 | Integrated processing technique for waste water in breadboard production |
| CN103183421A (en) * | 2011-12-28 | 2013-07-03 | 北大方正集团有限公司 | Treatment method for waste water containing complex copper |
| CN104944698A (en) * | 2015-06-12 | 2015-09-30 | 湖南景翌湘台环保高新技术开发有限公司 | Two-level copper removing technology for treating low-concentration comprehensive wastewater in PCB electroplating |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109607856A (en) * | 2018-12-17 | 2019-04-12 | 大连崇达电路有限公司 | A kind of route board industry integrated waste water treatment method |
| CN110746027A (en) * | 2019-11-18 | 2020-02-04 | 爱环吴世（苏州）环保股份有限公司 | Treatment method of chemical copper waste liquid |
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Application publication date: 20180629 |