CN1401591A - Ferrite process for treating nickel-contg. waste water - Google Patents
Ferrite process for treating nickel-contg. waste water Download PDFInfo
- Publication number
- CN1401591A CN1401591A CN02138289.1A CN02138289A CN1401591A CN 1401591 A CN1401591 A CN 1401591A CN 02138289 A CN02138289 A CN 02138289A CN 1401591 A CN1401591 A CN 1401591A
- Authority
- CN
- China
- Prior art keywords
- waste water
- nickel
- containing waste
- ferrite process
- ferrite
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000008569 process Effects 0.000 title claims abstract description 12
- 229910000859 α-Fe Inorganic materials 0.000 title claims abstract description 12
- 239000002351 wastewater Substances 0.000 title claims description 31
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims abstract description 9
- 239000003513 alkali Substances 0.000 claims abstract description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 53
- 229910052759 nickel Inorganic materials 0.000 claims description 17
- 238000009413 insulation Methods 0.000 claims description 7
- 229910001453 nickel ion Inorganic materials 0.000 claims description 7
- 229910052739 hydrogen Inorganic materials 0.000 claims description 6
- 239000012467 final product Substances 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 claims description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 239000010865 sewage Substances 0.000 abstract 2
- 239000006227 byproduct Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 239000007788 liquid Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 229910001385 heavy metal Inorganic materials 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- VEQPNABPJHWNSG-UHFFFAOYSA-N Nickel(2+) Chemical compound [Ni+2] VEQPNABPJHWNSG-UHFFFAOYSA-N 0.000 description 3
- 238000011109 contamination Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000009388 chemical precipitation Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005308 ferrimagnetism Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Removal Of Specific Substances (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
A ferrite process for treating the Ni-containing sewage includes adding ferrous salt to the sewage, adding alkali solution to regulate the pH to 10.8-12, adding H2O2 for oxidizing, heating to 60-85 deg.C, and still standing for 15 min. Its advantages are high treating effect, no secondary pollution and high mangetism of the ferrite as by-product.
Description
One, technical field
The present invention relates to the improvement and the comprehensive utilization method of the nickel-containing waste water of industry dischargings such as a kind of plating, metallurgy.
Two, background technology
Because heavy metal can be by biological a large amount of enrichments in water body, constitute food chain, harm humans, and it adopts which kind of treatment process or microorganism all can not degrade, only change its valency and classes of compounds, thereby the processing of heavy metal contaminants and safe disposal be one of focal issue of paying close attention to of people always, and nickel promptly is a heavy metal species wherein.
Nickel can be made multiple alloy with copper, aluminium, also is widely used in industry such as plating, battery, dyestuff, petrochemical complex, organic synthesis, yet nickeliferous trade effluent but can cause severe contamination and infringement HUMAN HEALTH to environment.The method of processing nickel-containing waste water commonly used has at present: chemical precipitation method, ion exchange method, absorption method, electroosmose process, evaporation concentration method and reverse osmosis method etc., these methods respectively have its relative merits and the scope of application, but these methods have only realized the transfer of pollutent, do not make heavy metal contamination obtain the elimination of essence.
Three, summary of the invention
1, goal of the invention: the object of the invention provides a kind of nickel ion that both can eliminate in the nickel-containing waste water, can make it to obtain comprehensive utilization method again.
2, technical scheme: for achieving the above object, treatment process of the present invention is:
1) throw in ferrous salt in nickel-containing waste water, the add-on of ferrous salt is Ni in the waste water
2+12～30 times of quality;
2) in waste water, add alkali lye again to adjust the pH value of waste water, make the pH value of waste water be controlled at 10.8～12;
3) adding concentration then is 0.2～2% H
2O
2Carry out oxidation;
4) container that then will contain waste water is immediately heated, and making it temperature is 60～85 ℃, leaves standstill insulation and gets final product more than 15 minutes.
After above step process, will occur brown or black in the container and have the precipitation of magnetic, this just explanation generated ferrite, available magnet or gravity settling are isolated it, clear liquid is measured wherein Ni after filtering again
2+Content.
In above-mentioned technology, the optimum content of ferrous salt is 14～16 times of nickel ions in the waste water, is lower than the 12 times of nickel ions that can not remove fully in the waste water, though be higher than the 30 times of nickel ions that can remove in the waste water, can cause the waste of ferrous salt.The optimum concn of hydrogen peroxide is 0.3%, and the big or small color that is higher than 1% ferrite particle that generates is inconsistent.The time that insulation is left standstill can guarantee getting final product more than 15 minutes, is generally 20～30 minutes.
This technology proposes very high request to the control of condition, and condition control is improper, and the water outlet nickel ion will exceed standard, and can not form ferrite, and the present invention is to dosage, pH control, the H of ferrous salt in the technology
2O
2The concentration that adds is studied, and by a large amount of experiments, has determined the processing condition of ferrite process processing nickel-containing waste water.
3, beneficial effect: the present invention compared with prior art, its remarkable advantage is: nickel ion content is far below the discharging standards of 1mg/L in the waste water after this art breading, clearance is near 100%, water outlet can qualified discharge, do not produce secondary pollution, the ferrimagnetism that forms is stronger, and can make useful materials by suitable processing, as being used as catalyzer, filler, electromagnetic wave absorbent material, magnetic mark etc.
Four, embodiment
Embodiment 1: get 180ml and contain Ni
2+Concentration is the nickel-containing waste water of 90mg/l, adds FeSO
47H
2O (add-on and Ni
2+Mass ratio be 15) and 0.3%H
2O
22ml is under 11.03,11.85,12.0 the condition, to leave standstill insulation 20～30min minute in 75 ℃ constant water bath box at pH, and it is stronger to record ferritic magnetic after the solid-liquid separation, water outlet Ni
2+Concentration is all less than 0.1mg/l.
Embodiment 2: get 180ml and contain Ni
2+Concentration is the nickel-containing waste water of 90mg/l, is adding FeSO
47H
2O (add-on and Ni
2+Mass ratio be 20) and 0.5%H
2O
21.5ml, be under 11.29,11.90 the condition, in 60 ℃ constant water bath box, to leave standstill insulation 10～30min minute at pH, it is stronger to record ferritic magnetic after the solid-liquid separation, water outlet Ni
2+Concentration is all less than 0.1mg/l.
Embodiment 3: get 150ml and contain Ni
2+Concentration is the nickel-containing waste water of 50mg/l, is adding FeSO
47H
2O (add-on and Ni
2+Mass ratio be 15), 1%H
2O
20.5ml, be under 11.10,11.45,11.84 the condition, in 80 ℃ constant water bath box, to leave standstill insulation 30min minute at pH, it is stronger to record ferritic magnetic after the solid-liquid separation, water outlet Ni
2+Concentration is all less than 0.1mg/l.
Embodiment 4: get 150ml and contain Ni
2+Concentration is the nickel-containing waste water of 50mg/l, is adding FeSO
47H
2O (add-on and Ni
2+Mass ratio be 12), 0.2%H
2O
22.5ml, be under 11.13,11.65 the condition, in 70 ℃ constant water bath box, to leave standstill insulation 20～30min minute at pH, it is stronger to record ferritic magnetic after the solid-liquid separation, water outlet Ni
2+Concentration is all less than 0.1mg/l.
Claims (4)
1, a kind of ferrite process of handling nickel-containing waste water is characterized in that this method is:
1) throw in ferrous salt in nickel-containing waste water, the add-on of ferrous salt is Ni in the waste water
2+12～30 times of quality;
2) in waste water, add alkali lye again to adjust the pH value of waste water, make the pH value of waste water be controlled at 10.8～12;
3) adding concentration then is 0.2～2% H
2O
2Carry out oxidation;
4) container that then will contain waste water is immediately heated, and making it temperature is 60～85 ℃, leaves standstill insulation and gets final product more than 15 minutes.
2, the ferrite process of processing nickel-containing waste water according to claim 1, the add-on that it is characterized in that described ferrous salt are 14～15 times of nickel ion quality in the waste water.
3, the ferrite process of processing nickel-containing waste water according to claim 1 is characterized in that described pH is controlled at 11～11.5.
4, the ferrite process of processing nickel-containing waste water according to claim 1 is characterized in that described H
2O
2Concentration be 0.3%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021382891A CN1186271C (en) | 2002-09-18 | 2002-09-18 | Ferrite process for treating nickel-contg. waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021382891A CN1186271C (en) | 2002-09-18 | 2002-09-18 | Ferrite process for treating nickel-contg. waste water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1401591A true CN1401591A (en) | 2003-03-12 |
| CN1186271C CN1186271C (en) | 2005-01-26 |
Family
ID=4749392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021382891A Expired - Fee Related CN1186271C (en) | 2002-09-18 | 2002-09-18 | Ferrite process for treating nickel-contg. waste water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1186271C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100431722C (en) * | 2006-09-21 | 2008-11-12 | 上海大学 | Electroplating sludge hydrothermal ferritizing treating method |
| CN101348297B (en) * | 2007-07-20 | 2011-03-30 | 比奥生物科技（深圳）有限公司 | Processing method for heavy metal ion-containing waste water |
| CN106242210A (en) * | 2016-09-05 | 2016-12-21 | 湖北平安电工材料有限公司 | A kind of curing technology etching mud |
| CN109574359A (en) * | 2018-12-30 | 2019-04-05 | 江门市崖门新财富环保工业有限公司 | A kind of process for reclaiming of nickel-containing waste water Treated sewage reusing and nickel |
| CN109897973A (en) * | 2019-04-03 | 2019-06-18 | 东北师范大学 | A method of utilizing nickel in molysite deposition recycling nickel-containing waste water |
-
2002
- 2002-09-18 CN CNB021382891A patent/CN1186271C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100431722C (en) * | 2006-09-21 | 2008-11-12 | 上海大学 | Electroplating sludge hydrothermal ferritizing treating method |
| CN101348297B (en) * | 2007-07-20 | 2011-03-30 | 比奥生物科技（深圳）有限公司 | Processing method for heavy metal ion-containing waste water |
| CN106242210A (en) * | 2016-09-05 | 2016-12-21 | 湖北平安电工材料有限公司 | A kind of curing technology etching mud |
| CN109574359A (en) * | 2018-12-30 | 2019-04-05 | 江门市崖门新财富环保工业有限公司 | A kind of process for reclaiming of nickel-containing waste water Treated sewage reusing and nickel |
| CN109897973A (en) * | 2019-04-03 | 2019-06-18 | 东北师范大学 | A method of utilizing nickel in molysite deposition recycling nickel-containing waste water |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1186271C (en) | 2005-01-26 |
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| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |