CN108726790A - Low concentration electroplated heavy metals wastewater treatment heavy metal recovery technique - Google Patents
Low concentration electroplated heavy metals wastewater treatment heavy metal recovery technique Download PDFInfo
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- CN108726790A CN108726790A CN201810296482.8A CN201810296482A CN108726790A CN 108726790 A CN108726790 A CN 108726790A CN 201810296482 A CN201810296482 A CN 201810296482A CN 108726790 A CN108726790 A CN 108726790A
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- heavy metal
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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
- 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
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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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
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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
-
- 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
- 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
- C02F3/00—Biological treatment of water, waste water, or sewage
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- 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)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention discloses a kind of low concentration electroplated heavy metals wastewater treatment heavy metal recovery techniques, and steps are as follows：By not pretreated heavy metal low concentration wastewater, contain heavy metal ion in the waste water, COD, NH4, complex compound, film process equipment is pumped by pump, membrane filtration precision 0.01um, remove oil removal, colloid, organic matter, film device is discharged into heavy metal adsorption equipment and adsorbs copper ion, heavy metal ion is washed out by acid regeneration after absorbent filter medium saturation, regenerated liquid intermediate ion concentration is electrolyzed to produce sheet metal recycling to the laggard electrolytic etching of metal equipment of a certain concentration, regenerated liquid after electrolysis, which returns, to be recycled, concentration not enough adds eo-acid supplement, biochemical treatment removal is done after adsorption plant water outlet readjustment PH to 7-8.This waste water treatment process using adsorption method due to going removing heavy metals, heavy metal sewage sludge decrement to save treatment of sludge expense, recycled valuable metal in waste water, its recycling is made to save entire cost for wastewater treatment.
Description
Technical field
The invention belongs to field of environment protection, more specifically more particularly at a kind of low concentration electroplated heavy metals waste water
Manage heavy metal recovery technique.
Background technology
Existing heavy metal wastewater thereby mostly uses chemical medication administration method processing, in order to remove heavy metal a small amount of in waste water, adds
A large amount of lime, ferrous iron, sulfide flocculation aid etc., processing cost is high, and the sludge of generation is more, and 100 grammes per square metre metals of removal generate
4000-5000 grams of sludge, the waste water to handle 1000 tons a day calculates about 5 tons or so of the sludge generated daily, per ton
2000-3000 members are handled, subsequent handle is difficult to handle the recycling of heavy metal difficulty, the dirt of generation after disposal company puts sludge away
Mud disposes the method for mostly using landfill, and with the quickening of development in science and technology process, production scale increases and the discharge capacity of industrial wastewater
Increasing, the sludge yield that by-product is handled as electroplating sewerage also accordingly increases.Sludge components are complicated, moisture content it is high and
It is not easy to be dehydrated, containing harmful heavy metal and pathogenic microorganism etc., seriously threatens the surviving of the mankind, health and development.Practice card
Bright recycling sludge is using the inevitable outlet for being Treatment of Sludge, however the heavy metal in sewage disposal process more than half can shift
To sludge worm, the heavy metal in sludge seriously hinders the recycling of sludge.Sludge containing higher heavy metal carries out agriculture
Used time not only increases the content of beary metal in crop body, also causes heavy metal pollution of soil, when there are precipitation, sludge and soil
A part of heavy metal enters rainwash and underground percolation and is migrated with flow in earth, and then causes secondary pollution to underground water.
Invention content
The purpose of the present invention is to provide a kind of low concentration electroplated heavy metals wastewater treatment heavy metal recovery techniques, to solve
The problems mentioned above in the background art.
To achieve the above object, the present invention provides the following technical solutions：
A kind of low concentration electroplated heavy metals wastewater treatment heavy metal recovery technique, steps are as follows：By not pretreated heavy metal
Low concentration wastewater is pumped into film process equipment containing heavy metal ion, COD, NH4, complex compound in the waste water by pump, membrane filtration essence
0.01um is spent, oil removal, colloid, organic matter, film device is gone to be discharged into heavy metal adsorption equipment and adsorb copper ion, absorbent filter medium
Copper ion is washed out by acid regeneration after saturation, regenerated liquid intermediate ion concentration is electrolyzed to produce metal to the laggard electrolytic etching of metal equipment of a certain concentration
Thin plate recycles, and the regenerated liquid after electrolysis, which returns, to be recycled, and concentration not enough adds eo-acid supplement, adsorption plant water outlet readjustment PH
Biochemical treatment removal is done after to 7-8.
Preferably, processing aqueous solution is stirred every 30min in the heavy metal adsorption equipment processing procedure, makes weight
Metal processing is more abundant, and stirs and terminate that mixing plant is made to be detached from aqueous solution, and heavy metal is avoided to corrode mixing plant.
Preferably, when cannot work after the absorption filtering material absorption heavy metal saturation in the heavy metal adsorption equipment, with acid
Cleaning absorption filtering material is removed, so that heavy metal ion is parsed, absorption filtering material can recycle.
Compared with prior art, the beneficial effects of the invention are as follows：This waste water treatment process using adsorption method due to being removed
Heavy metal, heavy metal sewage sludge are reduced, and are saved low concentration electroplated heavy metals wastewater treatment and are taken, have recycled valuable metal in waste water, made
Its recycling saves entire cost for wastewater treatment.
Description of the drawings
Fig. 1 is the processing technological flow figure of the present invention.
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 low concentration electroplated heavy metals wastewater treatment heavy metal recovery technique, steps are as follows：To be not pretreated heavy
Metal low concentration wastewater is pumped into film process equipment, the film mistake containing heavy metal ion, COD, NH4, complex compound in the waste water by pump
Precision 0.01um is filtered, oil removal, colloid, organic matter, film device is gone to be discharged into heavy metal adsorption equipment adion, absorption filter
Ion is washed out by acid regeneration after material saturation, regenerated liquid intermediate ion concentration is electrolyzed to produce metal to the laggard electrolytic etching of metal equipment of a certain concentration
Thin plate recycles, and the regenerated liquid after electrolysis, which returns, to be recycled, and concentration not enough adds eo-acid supplement, adsorption plant water outlet readjustment PH
Biochemical treatment removal is done after to 7-8.
Specifically, when the absorption filtering material absorption heavy metal in the heavy metal adsorption equipment cannot work after being saturated, with acid
Cleaning absorption filtering material is removed, so that heavy metal ion is parsed, absorption filtering material can recycle.
Low concentration heavy metal water is directly filtered with film, removing the suspended matter in waste water, colloid, organic matter prevents
Absorbent filter medium is blocked, Adsorption is carried out to heavy metal ions in wastewater absorption filtering material in acid condition；Absorption filtering material adsorbs
When cannot work after heavy metal saturation, gone on regenerative adsorption filtrate to parse heavy metal ion with acid, filtrate recycles；Regenerated liquid
In heavy metal ion electrolytic recovery heavy metal, after electrolysis regenerated liquid recycle, concentration not enough add eo-acid supplement；It inhales
The water outlet heavy metal of applying equipment processing reaches discharge standard, and follow-up readjustment, which further does biochemical treatment, makes COD, NH4 qualified discharge.
This waste water treatment process using adsorption method due to going removing heavy metals, heavy metal sewage sludge decrement to save Treatment of Sludge
Take, having recycled valuable metal in waste water makes its recycling save entire cost for wastewater treatment.Remove the generation of 100 grammes per square metre metals
4000-5000 grams of sludge, the waste water to handle 1000 tons a day calculates about 5 tons or so of the sludge generated daily, per ton
The first one day Treatment of Sludge of handling 2000-3000 just needs 10000-15000 first（Different places charge is different）, spend needed for 1 year
300-450 ten thousand（It was calculated by 300 days 1 year）；Such as use New Technology for Sludge Decrement that can save treatment of sludge expense 80% i.e. in 1 year
240-360 ten thousand, recycling metal bring benefits and recycle 100 kilograms of copper daily, and 30000 kilograms of copper removal costs can generate greatly within 1 year
About 1,200,000 yuan of profits save ten thousand yuan for the treatment of of sludge expense and copper Reclaiming benefit about 360-480 in 1 year.
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 (3)
1. a kind of low concentration electroplated heavy metals wastewater treatment heavy metal recovery technique, which is characterized in that steps are as follows：It will be without pre-
The heavy metal low concentration wastewater of processing is pumped into film process by pump and sets containing heavy metal ion, COD, NH4, complex compound in the waste water
Standby, membrane filtration precision 0.01um goes oil removal, colloid, organic matter, film device to be discharged into heavy metal adsorption equipment and adsorb weight
Metal ion by acid regeneration washes out copper ion, regenerated liquid intermediate ion concentration to the laggard metal of a certain concentration after absorbent filter medium saturation
Electrolysis installation is electrolyzed to produce sheet metal recycling, and the regenerated liquid after electrolysis, which returns, to be recycled, and concentration not enough adds eo-acid supplement,
Biochemical treatment removal is done after adsorption plant water outlet readjustment PH to 7-8.
2. a kind of low concentration electroplated heavy metals wastewater treatment heavy metal recovery technique according to claim 1, feature exist
In：Processing aqueous solution is stirred every 30min in the heavy metal adsorption equipment processing procedure, makes heavy metal processing more
Fully, and stirring end makes mixing plant be detached from aqueous solution, and heavy metal is avoided to corrode mixing plant.
3. a kind of low concentration electroplated heavy metals wastewater treatment heavy metal recovery technique according to claim 1, feature exist
In：When cannot work after the absorption filtering material absorption heavy metal saturation in the heavy metal adsorption equipment, cleaning absorption filter is gone with acid
Material makes heavy metal ion parse, and absorption filtering material can recycle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810296482.8A CN108726790A (en) | 2018-04-04 | 2018-04-04 | Low concentration electroplated heavy metals wastewater treatment heavy metal recovery technique |
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| CN201810296482.8A CN108726790A (en) | 2018-04-04 | 2018-04-04 | Low concentration electroplated heavy metals wastewater treatment heavy metal recovery technique |
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| CN108726790A true CN108726790A (en) | 2018-11-02 |
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| CN201810296482.8A Pending CN108726790A (en) | 2018-04-04 | 2018-04-04 | Low concentration electroplated heavy metals wastewater treatment heavy metal recovery technique |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113277670A (en) * | 2021-05-12 | 2021-08-20 | 衡阳师范学院 | Heavy metal-containing wastewater treatment device and treatment method thereof |
| CN113698031A (en) * | 2021-08-10 | 2021-11-26 | 广西贵港市蓝月亮水处理环保科技有限公司 | Method and equipment for recovering precious metals from comprehensive wastewater |
Citations (5)
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| JPS555732A (en) * | 1978-06-30 | 1980-01-16 | Tatsuaki Omasa | Treating method for sewage |
| 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 |
| CN102583889A (en) * | 2012-02-24 | 2012-07-18 | 美景（北京）环保科技有限公司 | Wastewater treatment method and wastewater treatment system |
| CN204434396U (en) * | 2015-01-27 | 2015-07-01 | 淮安国丰电子科技有限公司 | A kind of electroplating sewerage treatment facility |
-
2018
- 2018-04-04 CN CN201810296482.8A patent/CN108726790A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS555732A (en) * | 1978-06-30 | 1980-01-16 | Tatsuaki Omasa | Treating method for sewage |
| 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 |
| CN102583889A (en) * | 2012-02-24 | 2012-07-18 | 美景（北京）环保科技有限公司 | Wastewater treatment method and wastewater treatment system |
| CN204434396U (en) * | 2015-01-27 | 2015-07-01 | 淮安国丰电子科技有限公司 | A kind of electroplating sewerage treatment facility |
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 (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113277670A (en) * | 2021-05-12 | 2021-08-20 | 衡阳师范学院 | Heavy metal-containing wastewater treatment device and treatment method thereof |
| CN113698031A (en) * | 2021-08-10 | 2021-11-26 | 广西贵港市蓝月亮水处理环保科技有限公司 | Method and equipment for recovering precious metals from comprehensive wastewater |
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Application publication date: 20181102 |
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