CN109851003A - A kind of method of comprehensive utilization of copper-containing wastewater - Google Patents
A kind of method of comprehensive utilization of copper-containing wastewater Download PDFInfo
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- CN109851003A CN109851003A CN201910194986.3A CN201910194986A CN109851003A CN 109851003 A CN109851003 A CN 109851003A CN 201910194986 A CN201910194986 A CN 201910194986A CN 109851003 A CN109851003 A CN 109851003A
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- copper
- electrolytic cell
- waste water
- containing wastewater
- comprehensive utilization
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Abstract
The invention discloses a kind of method of comprehensive utilization of copper-containing wastewater, it is electrolysed including sulfuric acid copper waste water is put into addition ammonium sulfate in a closed electrolytic cell, cathode and anode in electrolytic cell are all made of ferrous material, the copper electrode of copper coating is formed with after energization in bed Electrowinning of Copper ion, after the copper deposition in waste water is complete, start that hydrogen is precipitated, forms bulky ferric hydroxide precipitate in slot bottom；New waste water is supplemented according to water consumption situation, moves in circles and consumes water.Copper-containing wastewater can be constantly added in electrolytic cell by the method for the present invention, obtain hydrogen, deposition copper and iron hydroxide, that is, what is be added is waste water, out be high-value product, and not waste discharge, resource recycling level can be improved, effectively solve the problems, such as secondary blowdown.
Description
Technical field
The invention belongs to the processing methods of copper-containing wastewater, and in particular to a kind of method of comprehensive utilization of copper-containing wastewater.
Background technique
The processing technique comparative maturity of copper-containing wastewater is typically limited to only the removal and recycling of Cu in waste water, and not
There are problems that secondary emission waste water avoidablely.In addition to this, it has not seen and comprehensively utilizes and do not discharge useless about copper-containing wastewater
The report of water.
Summary of the invention
The object of the present invention is to provide a kind of method of comprehensive utilization of copper-containing wastewater, to improve resource recycling level,
Effectively solve the problems, such as secondary blowdown.
Realize the object of the invention the technical solution adopted is as follows:
The method of comprehensive utilization of copper-containing wastewater provided by the invention, including sulfuric acid copper waste water is put into a closed electrolytic cell and is added
Enter ammonium sulfate to be electrolysed, the cathode and anode in electrolytic cell are all made of ferrous material, in bed Electrowinning of Copper ion shape after energization
At the copper electrode for having copper coating, after the copper deposition in waste water is complete, start that hydrogen is precipitated, forms ferric hydroxide precipitate in slot bottom
Object；New waste water is supplemented according to water consumption situation, moves in circles and consumes water.
The concentration of the copper sulphate Cu in waste water is 0.01~100 grams per liter, and the dosage of the ammonium sulfate presses electrolytic cell volume
10~60 grams/every liter, the decomposition voltage of electrolytic cell is 0.5~1.8 volt.
The anode is electrically connected using titanium plate with the ferrous material.
When the water consumption makes liquid level reduce by 10~20 centimetres, new waste water is supplemented.
The hydrogen is collected by pipeline from upper part of the electrolytic cell, and the bulky ferric hydroxide precipitate is by pipeline under electrolytic cell
It collects in portion.
Beneficial effects of the present invention
1, copper-containing wastewater can be constantly added in electrolytic cell by the method for the present invention, obtain hydrogen, deposition copper and iron hydroxide, i.e., plus
What is entered is waste water, out be high-value product, and not waste discharge.
2, the present invention includes recycling for three aspects, first is that waste water recycles manufacture hydrogen energy source, and in copper
Under the action of electrode and iron ion hydrolysis, it is ensured that hydrogen manufacturing is low in cost；Second is that copper scrap recycles, the copper in waste water is utilized
Electrode is manufactured, the effect of power consumption can be reduced；Third is that scrap iron can be used in anode, recycling for scrap iron resource is realized, can will be given up
Iron becomes nano material, improves personal value an order of magnitude.
3, the method for the present invention gets up disposal of three wastes and resource circulation utilization and production green energy resource triplicity, comprehensive
Close the factors such as potential difference, energy conservation required for the condition for considering manufacture nano material, hydrogen manufacturing.Such as it is using the solution of low concentration
Manufacture nano material the most important condition, copper-containing wastewater concentration it is low, can satisfy such requirement.Using between different materials
Potential difference is an important channel for generating energy.Hydrogen-evolution overpotential is reduced, is the essential measure for reducing Hydrogen Energy application cost.It mentions
High resource reclaim level of comprehensive utilization, effectively solves the problems, such as secondary blowdown.
4, copper mfg. electrode of the method for the present invention in electrolysis in graywater, using iron ion hydrolyze provide hydrogen from
Son efficiently obtains hydrogen energy source.It can get nano magnetic material by calcining bulky ferric hydroxide precipitate, reduced nano oxide obtains nanometer
Iron.18-20 tons of copper-containing wastewaters can be 1 ton of hydrogen manufacturing, handles 1 ton of copper-containing wastewater, can almost manufacture 1 ton of Nanoscale Iron.The hydrogen-oxygen of collection
Change iron precipitate, can be obtained Nanoscale Iron through filters pressing, drying, reduction.It, can when the sulfate radical in electrolytic cell is enriched to 300 grams per liters
With lime water process, to manufacture a kind of red gypsum.
Technical solution of the present invention is further illustrated below with reference to embodiment.
Detailed description of the invention
Fig. 1 is the electrolytic cell schematic diagram that the present invention uses.
Specific embodiment
Embodiment 1
See Fig. 1, the sulfuric acid copper waste water of 5 grams per liter of cupric is put into closed electrolytic cell 1, the dosage of ammonium sulfate presses electrolytic cell appearance
Product is added 60 grams/every liter, and the cathode 2 in electrolytic cell 1 uses common iron plate, and anode 3 is useless using titanium plate and in plastic basket 4
Ferroelectricity connection, the decomposition voltage of electrolytic cell keeps 1 volt of slot pressure after energization, is deposited on copper ion on cathode 2 and is formed with copper coating
Copper electrode, after the copper deposition in waste water is complete, start be precipitated hydrogen, slot bottom formed bulky ferric hydroxide precipitate；Work as water consumption
When so that liquid level reducing by 10~20 centimetres, new waste water is supplemented from liquid-feeding tube 6 and is entered, without supplementing ammonium sulfate, move in circles consumption
Water, can be from 1 upper collection hydrogen of electrolytic cell by pipeline 5；It can be from 1 collective low ferric hydroxide precipitate of electrolytic cell by pipeline 7
Object can be obtained Nanoscale Iron through filters pressing, drying, reduction.
Entire electrode process is as follows:
(+) Fe-3e → Fe3+
Fe³++ 3H2O → Fe(OH) 3 ↓+3H+
(-) Cu2++2e→Cu
2H++ 2e → H2 ↑
After depositing copper on cathode plate, liberation of hydrogen overvoltage can be lowered, while forming the electrolysis that battery accelerates water with anode.Electrolyte
Interior trivalent molten iron solution generates a large amount of hydrogen ions, facilitates the quick precipitation of hydrogen.
Embodiment 2
The sulfuric acid copper waste water of 0.01 grams per liter of cupric is put into closed electrolytic cell 1, the dosage of ammonium sulfate is added by electrolytic cell volume
Enter 10 grams/every liter, the decomposition voltage of electrolytic cell is 0.5 volt, other same as Example 1.
Embodiment 3
The sulfuric acid copper waste water of 100 grams per liter of cupric is put into closed electrolytic cell 1, the dosage of ammonium sulfate is added by electrolytic cell volume
Enter 30 grams/every liter, the decomposition voltage of electrolytic cell is 1.8 volts, other same as Example 1.
Claims (5)
1. a kind of method of comprehensive utilization of copper-containing wastewater, it is characterized in that including: that sulfuric acid copper waste water is put into a closed electrolytic cell
Interior addition ammonium sulfate is electrolysed, and the cathode and anode in electrolytic cell are all made of ferrous material, after energization bed Electrowinning of Copper from
Son is formed with the copper electrode of copper coating, after the copper deposition in waste water is complete, starts that hydrogen is precipitated, and it is heavy to form iron hydroxide in slot bottom
Starch；New waste water is supplemented according to water consumption situation, moves in circles and consumes water.
2. the method for comprehensive utilization of copper-containing wastewater according to claim 1, it is characterized in that the copper sulphate Cu in waste water
Concentration is 0.01~100 grams per liter, and the dosage of the ammonium sulfate presses 10~60 grams/every liter of electrolytic cell volume, the electrolysis electricity of electrolytic cell
Pressure is 0.5~1.8 volt.
3. the method for comprehensive utilization of copper-containing wastewater according to claim 1 or 2, it is characterized in that the anode using titanium plate with
The ferrous material electrical connection.
4. the method for comprehensive utilization of copper-containing wastewater according to claim 3, it is characterized in that liquid level drops in the water consumption
At low 10~20 centimetres, new waste water is supplemented.
5. the method for comprehensive utilization of copper-containing wastewater according to claim 4, it is characterized in that the hydrogen passes through pipeline from electricity
Slot upper collection is solved, the bulky ferric hydroxide precipitate passes through pipeline from electrolytic cell collective low.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910194986.3A CN109851003A (en) | 2019-03-14 | 2019-03-14 | A kind of method of comprehensive utilization of copper-containing wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910194986.3A CN109851003A (en) | 2019-03-14 | 2019-03-14 | A kind of method of comprehensive utilization of copper-containing wastewater |
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| CN109851003A true CN109851003A (en) | 2019-06-07 |
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| CN201910194986.3A Pending CN109851003A (en) | 2019-03-14 | 2019-03-14 | A kind of method of comprehensive utilization of copper-containing wastewater |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105198130A (en) * | 2014-05-27 | 2015-12-30 | 祐鼎（福建）光电材料有限公司 | Waste water treatment method |
| CN106884185A (en) * | 2017-03-28 | 2017-06-23 | 苏碧云 | The technique and system and device of copper in a kind of recovery acidic etching liquid |
| CN108866572A (en) * | 2018-08-27 | 2018-11-23 | 苏碧云 | A kind of iron displacement copper electrolysis cells |
| WO2020073128A1 (en) * | 2018-10-11 | 2020-04-16 | Cape Breton University | Method and apparatus for copper-catalyzed electrochemical water treatment |
-
2019
- 2019-03-14 CN CN201910194986.3A patent/CN109851003A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105198130A (en) * | 2014-05-27 | 2015-12-30 | 祐鼎（福建）光电材料有限公司 | Waste water treatment method |
| CN106884185A (en) * | 2017-03-28 | 2017-06-23 | 苏碧云 | The technique and system and device of copper in a kind of recovery acidic etching liquid |
| CN108866572A (en) * | 2018-08-27 | 2018-11-23 | 苏碧云 | A kind of iron displacement copper electrolysis cells |
| WO2020073128A1 (en) * | 2018-10-11 | 2020-04-16 | Cape Breton University | Method and apparatus for copper-catalyzed electrochemical water treatment |
Non-Patent Citations (1)
| Title |
|---|
| 梁天成: "《矿井水处理技术及标准规范实用手册》", 30 November 2004, 当代中国音像出版社 * |
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Application publication date: 20190607 |