CN103288184A - Method for copper-containing wastewater treatment based on iron-carbon micro-electrolysis technology - Google Patents
Method for copper-containing wastewater treatment based on iron-carbon micro-electrolysis technology Download PDFInfo
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- CN103288184A CN103288184A CN2013101891263A CN201310189126A CN103288184A CN 103288184 A CN103288184 A CN 103288184A CN 2013101891263 A CN2013101891263 A CN 2013101891263A CN 201310189126 A CN201310189126 A CN 201310189126A CN 103288184 A CN103288184 A CN 103288184A
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- iron
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- 239000010949 copper Substances 0.000 title claims abstract description 38
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 29
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 28
- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 9
- QMQXDJATSGGYDR-UHFFFAOYSA-N methylidyneiron Chemical compound [C].[Fe] QMQXDJATSGGYDR-UHFFFAOYSA-N 0.000 title abstract description 6
- 238000004065 wastewater treatment Methods 0.000 title abstract description 4
- 238000005516 engineering process Methods 0.000 title abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 64
- 239000002351 wastewater Substances 0.000 claims abstract description 39
- 229910052742 iron Inorganic materials 0.000 claims abstract description 20
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 230000035484 reaction time Effects 0.000 claims abstract description 10
- 238000006243 chemical reaction Methods 0.000 claims abstract description 9
- 238000005119 centrifugation Methods 0.000 claims abstract description 5
- 239000003610 charcoal Substances 0.000 claims description 19
- 239000002245 particle Substances 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 6
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052799 carbon Inorganic materials 0.000 abstract description 6
- 239000000945 filler Substances 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 3
- 229910001431 copper ion Inorganic materials 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 239000010802 sludge Substances 0.000 abstract description 2
- 239000008187 granular material Substances 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 238000000926 separation method Methods 0.000 description 3
- 231100000419 toxicity Toxicity 0.000 description 3
- 230000001988 toxicity Effects 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000012716 precipitator Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 206010000087 Abdominal pain upper Diseases 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 241000206602 Eukaryota Species 0.000 description 1
- 206010047700 Vomiting Diseases 0.000 description 1
- 230000000274 adsorptive effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 208000019425 cirrhosis of liver Diseases 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000002242 deionisation method Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 238000009296 electrodeionization Methods 0.000 description 1
- 238000000909 electrodialysis Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- -1 iron ion Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- 150000002902 organometallic compounds Chemical class 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000036284 oxygen consumption Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 239000002594 sorbent Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 230000008673 vomiting Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention discloses a method for copper-containing wastewater treatment based on iron-carbon micro-electrolysis technology. The method comprises the following steps of: (1) regulating the pH value of the copper-containing wastewater to 1-8; (2) adding iron, carbon and diatomite in the wastewater, wherein the mass ratio of Fe/C is 0.5-6, the mass ratio of Fe/diatomite is 20-5, the carbon granule is 6-80 meshes, and the reaction time is 10-120min; (3) performing centrifugal treatment after reaction, wherein the centrifugation time is 5-15 minutes. The method has the advantages that diatomite is added in the iron and carbon fillers, thus, the blockage of the iron and carbon fillers is reduced, the micro-electrolysis efficiency is improved, and the removal rate of the copper ion in wastewater is more than 94%; moreover, a primary battery is spontaneously formed between the iron and the carbon, additional energy consumption is not needed; the method uses simple equipment, occupies small area, is convenient to operate, generates a small amount of sludge, and produces no secondary pollution to the environment.
Description
Technical field
The present invention relates to a kind for the treatment of process of copper-containing wastewater, relate in particular to a kind of method of utilizing iron charcoal micro electrolysis tech Treatment of Copper waste water.
Background technology
Along with the development of metallurgical industry and electronic industry, produced the alkali ammoniacal etchant waste liquid of a large amount of copper powder washing waste water, electroplating wastewater and printed circuit board (PCB) production process, these copper-containing wastewaters have higher economic worth, but people and environment are had harm.Correlative study shows that as the necessary beneficial element of life, the toxicity of copper own is less, but after human body inhaled the excessive copper of people, the system that will stimulate digestion causing the stomachache vomiting, the long-term excessive liver cirrhosis that causes.Copper is also bigger to unicellular lower eukaryote and farm crop toxicity, uses the copper-containing wastewater irrigated farmland, and crop will be injured, and influences the growth of farm crop greatly.When in the water during cupric 0.01mg/L, the biochemical oxygen consumption process of water can be suppressed, and self purification of water body is had tangible influence; Can produce peculiar smell when surpassing 3.0mg/L.And the copper in the water body can not be by microbiological degradation, and opposite organism can make its enrichment, and it is converted into the bigger heavy metal organic compound of toxicity, is easy to advance people's human body by water system.Because the avidity of some tissue is big especially in copper and the human body, in conjunction with after understand the activity of inhibitory enzyme, thereby to human body generation toxic action.Then not only can solve copper to the pollution problem of environment so copper-containing wastewater if can be recycled before discharging, and economize on resources, have certain economic benefits.
The method of Treatment of Copper waste water has chemical reduction-precipitator method, absorption method, membrane separation process etc. at present.Traditional chemical reduction-precipitator method need add chemical agent, have serious secondary pollution problem, and this method can only be with the cupric ion wastewater treatment to a certain degree simultaneously, can't degree of depth deionization, generally need and the subsequent technique combination; Absorption method need be selected suitable sorbent material, general the low concentration wastewater for the treatment of trace, and above two kinds of methods all exist cupric ion to recycle the problem of difficulty; Membrane separation process has electrodialysis, reverse osmosis and electrodeionization etc., but this method is to the requirement height of film, and the cost height is uneconomical.Though these methods have certain effect, exist complex process, investment cost height, can't degree of depth separation etc. problem, this has limited its application in practice to a great extent.Also have micro-electrolysis method in addition, harden seriously but its problem that mainly exists is iron-carbon filling material, cause filler to stop up, blocked filler can't form little galvanic cell, and namely the utilization ratio of iron-carbon filling material reduces.
Summary of the invention
Goal of the invention: the purpose of this invention is to provide a kind of filler and be difficult for obstruction, cupric ion clearance height, the method for the Treatment of Copper waste water of consumed power and economic environmental protection not.
Technical scheme: a kind of method of utilizing iron charcoal micro electrolysis tech Treatment of Copper waste water that the present invention relates to comprises the steps:
(1) regulate copper-containing wastewater the pH value be 1～8;
(2) add iron, charcoal and diatomite in waste water, wherein, the mass ratio of Fe/C is that the diatomaceous mass ratio of 0.5～6, Fe/ is 20～5, charcoal particle 6～80 orders, and the reaction times is 10～120min;
(3) reaction is carried out centrifugal treating, centrifugation time 5～15min after finishing.
Wherein, in the step (1), copper-containing wastewater the pH value be 2～6.In the step (2), the dosage of iron is 20～200g/L.The mass ratio of Fe/C is that the diatomaceous mass ratio of 1～4, Fe/ is 15～8, charcoal particle 10～50 orders, and iron filings are from the discarded plane iron flower of factory.Reaction times is 35～80min.In the step (3), centrifugation time is 8～12min.
Reaction mechanism: be filler with iron filings and charcoal in the micro cell, between iron and charcoal, form numerous small galvanic cell, form multiple electrochemical reaction, realize wastewater treatment by reduction-oxidation, iron ion flocculation and adsorption, reduce cupric content in the waste water; Diatomite is the higher additive of a kind of adsorptive power, this additive can adsorb the ironic hydroxide absorption flco that produces in the microelectrolysis process, make these ironic hydroxide absorption flcos form the absorption flco that size is big, specific surface area is high, these absorption flcos break away from from the iron-carbon filling material surface, reunion is on the diatomite surface, this has reduced the problem that hardens of the little electrolysis of iron charcoal to a certain extent, then by these flco absorption metal copper ions.
Beneficial effect: the present invention compared with prior art, its remarkable advantage is for increasing diatomite in iron, carbon filling material, thus reduce iron-carbon filling material chocking-up degree, improve little electrolytic efficiency, make that the cupric ion clearance reaches more than 94% in the waste water; In addition, spontaneous formation galvanic cell does not need extra energy consumption between iron, the charcoal; The equipment that the present invention uses is simple, and floor space is little, and is easy to operate, and the sludge quantity of generation is few, to the environment non-secondary pollution.
Embodiment:
Embodiment 1: Cu in the waste water
2+Content 100mg/L, adjusting waste water ph are that the dosage of 6, Fe is 30g/L, and the Fe/C mass ratio is 4, charcoal particle 50 orders, and Fe/ diatomite quality ratio is 15, reaction times 80min, reaction finishes the centrifugal 12min in back, measures absorbancy then, obtains Cu
2+Clearance be 96%.
Embodiment 2: Cu in the waste water
2+Content 100mg/L, adjusting waste water ph are that the dosage of 8, Fe is 100g/L, and the Fe/C mass ratio is 6, charcoal particle 80 orders, and Fe/ diatomite quality ratio is 20, reaction times 120min, reaction finishes the centrifugal 8min in back, measures absorbancy then, obtains Cu
2+Clearance be 95.5%.
Embodiment 3: Cu in the waste water
2+Content 100mg/L, adjusting waste water ph are that the dosage of 4, Fe is 80g/L, and the Fe/C mass ratio is 3, charcoal particle 30 orders, and Fe/ diatomite quality ratio is 8, reaction times 10min, reaction finishes the centrifugal 5min in back, measures absorbancy then, obtains Cu
2+Clearance be 96.5%.
Embodiment 4: Cu in the waste water
2+Content 100mg/L, adjusting waste water ph are that the dosage of 2, Fe is 60g/L, and the Fe/C mass ratio is 1, charcoal particle 10 orders, and Fe/ diatomite quality ratio is 10, reaction times 60min, reaction finishes the centrifugal 15min in back, measures absorbancy then, obtains Cu
2+Clearance be 97%.
Embodiment 5: Cu in the waste water
2+Content 100mg/L, adjusting waste water ph are that the dosage of 1, Fe is 200g/L, and the Fe/C mass ratio is 0.5, charcoal particle 6 orders, and Fe/ diatomite quality ratio is 5, reaction times 35min, reaction finishes the centrifugal 10min in back, measures absorbancy then, obtains Cu
2+Clearance be 99.02%.
Claims (6)
1. a method of utilizing iron charcoal micro electrolysis tech Treatment of Copper waste water is characterized in that: comprise the steps:
(1) regulate copper-containing wastewater the pH value be 1～8;
(2) add iron, charcoal and diatomite in waste water, wherein, the mass ratio of Fe/C is that the diatomaceous mass ratio of 0.5～6, Fe/ is 20～5, charcoal particle 6～80 orders, and the reaction times is 10～120min;
(3) reaction is carried out centrifugal treating, centrifugation time 5～15min after finishing.
2. the method for Treatment of Copper waste water according to claim 1 is characterized in that: in the step (1), copper-containing wastewater the pH value be 2～6.
3. the method for Treatment of Copper waste water according to claim 1, it is characterized in that: in the step (2), the dosage of iron is 20～200g/L.
4. the method for Treatment of Copper waste water according to claim 1, it is characterized in that: in the step (2), the mass ratio of Fe/C is that the diatomaceous mass ratio of 1～4, Fe/ is 15～8, charcoal particle 10～50 orders.
5. the method for Treatment of Copper waste water according to claim 1, it is characterized in that: in the step (2), the reaction times is 35～80min.
6. the method for Treatment of Copper waste water according to claim 1, it is characterized in that: in the step (3), centrifugation time is 8～12min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310189126.3A CN103288184B (en) | 2013-05-20 | 2013-05-20 | Method for copper-containing wastewater treatment based on iron-carbon micro-electrolysis technology |
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| CN201310189126.3A CN103288184B (en) | 2013-05-20 | 2013-05-20 | Method for copper-containing wastewater treatment based on iron-carbon micro-electrolysis technology |
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| CN103288184B CN103288184B (en) | 2014-10-22 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104086033A (en) * | 2014-08-05 | 2014-10-08 | 段希福 | Treatment method of copper-containing industrial wastewater |
| CN105967284A (en) * | 2016-06-28 | 2016-09-28 | 陕西科技大学 | Kieselguhr-based ferric carbon ceramsite packing and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000061500A1 (en) * | 1999-04-14 | 2000-10-19 | Expertima | Method and plant for treating water with high degree of hardness and/or having a high sulphate content |
| CN101318726A (en) * | 2008-07-08 | 2008-12-10 | 无锡林信环保工程有限公司 | Iron-carbon filling material |
| CN101723487A (en) * | 2009-12-21 | 2010-06-09 | 昆明理工大学 | Method for recovering copper in copper-containing acid waste water of mine |
-
2013
- 2013-05-20 CN CN201310189126.3A patent/CN103288184B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000061500A1 (en) * | 1999-04-14 | 2000-10-19 | Expertima | Method and plant for treating water with high degree of hardness and/or having a high sulphate content |
| CN101318726A (en) * | 2008-07-08 | 2008-12-10 | 无锡林信环保工程有限公司 | Iron-carbon filling material |
| CN101723487A (en) * | 2009-12-21 | 2010-06-09 | 昆明理工大学 | Method for recovering copper in copper-containing acid waste water of mine |
Non-Patent Citations (2)
| Title |
|---|
| 《中国非金属矿工业导刊》 20061231 张庆娜等 "铁炭骨架硅藻土吸附剂微电解生物载体制备的研究" 1-6 , 第54期 * |
| 张庆娜等: ""铁炭骨架硅藻土吸附剂微电解生物载体制备的研究"", 《中国非金属矿工业导刊》, no. 54, 31 December 2006 (2006-12-31) * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104086033A (en) * | 2014-08-05 | 2014-10-08 | 段希福 | Treatment method of copper-containing industrial wastewater |
| CN104086033B (en) * | 2014-08-05 | 2015-11-25 | 顾祥茂 | A kind for the treatment of process of copper-bearing industrial wastewater |
| CN105967284A (en) * | 2016-06-28 | 2016-09-28 | 陕西科技大学 | Kieselguhr-based ferric carbon ceramsite packing and preparation method thereof |
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| CN103288184B (en) | 2014-10-22 |
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