CN106430479A - Application of electric furnace slag in preparation of nickel-containing sewage treating agent - Google Patents
Application of electric furnace slag in preparation of nickel-containing sewage treating agent Download PDFInfo
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- CN106430479A CN106430479A CN201610832553.2A CN201610832553A CN106430479A CN 106430479 A CN106430479 A CN 106430479A CN 201610832553 A CN201610832553 A CN 201610832553A CN 106430479 A CN106430479 A CN 106430479A
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- Prior art keywords
- electroslag
- nickel
- sewage
- treating agent
- nickeliferous
- Prior art date
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims abstract description 101
- 229910052759 nickel Inorganic materials 0.000 title claims abstract description 46
- 239000010865 sewage Substances 0.000 title claims abstract description 34
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 28
- 239000002893 slag Substances 0.000 title claims abstract description 19
- 238000002360 preparation method Methods 0.000 title abstract description 3
- 238000000034 method Methods 0.000 claims description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 11
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 8
- 238000003723 Smelting Methods 0.000 claims description 7
- 239000002253 acid Substances 0.000 claims description 6
- 239000001117 sulphuric acid Substances 0.000 claims description 2
- 235000011149 sulphuric acid Nutrition 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 9
- 239000002351 wastewater Substances 0.000 description 32
- 230000004044 response Effects 0.000 description 17
- 239000000395 magnesium oxide Substances 0.000 description 10
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 10
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 9
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 8
- 239000000292 calcium oxide Substances 0.000 description 8
- 229910001453 nickel ion Inorganic materials 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 238000007747 plating Methods 0.000 description 6
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910001385 heavy metal Inorganic materials 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 125000005587 carbonate group Chemical group 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000009388 chemical precipitation Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 239000011790 ferrous sulphate Substances 0.000 description 1
- 235000003891 ferrous sulphate Nutrition 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000004021 humic acid Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001095 inductively coupled plasma mass spectrometry Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- RECVMTHOQWMYFX-UHFFFAOYSA-N oxygen(1+) dihydride Chemical compound [OH2+] RECVMTHOQWMYFX-UHFFFAOYSA-N 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000012492 regenerant Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Classifications
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Removal Of Specific Substances (AREA)
Abstract
The invention provides an application of electric furnace slag in preparation of a nickel-containing sewage treating agent. The nickel-containing sewage treating agent contains the electric furnace slag. With the adoption of the nickel-containing sewage treating agent, nickel in nickel-containing sewage can be effectively removed, so that the electric furnace slag is changed into treasure, and the removing effect is good.
Description
Technical field
The present invention relates to a kind of purposes in preparing nickeliferous sewage-treating agent for electroslag.
Background technology
With economic fast development, the demand for various metals also sharply increases, particularly Electroplate Factory, circuit board plant
Nickel plating technology, the pickling of plating piece, rinsing and some acid electroplating baths such as acid copper-plating, plating in metal plating piece preprocessing process
Washings after the plating such as nickel contain substantial amounts of nickel, and in 0-900mg/L, the valence state of wherein most nickel is positive divalent to concentration, pole
Easily participate in various reactions and generate the material with carcinogenecity.
At present, the processing method for nickel waste water mainly designs according to its form.Than more typical ferrite process
It is to generate ferrite crystal it is easy to separate and non-secondary pollution using ferrous sulfate and nickel, but it is using dense by nickel waste water
Degree limit value, can only concentration for the treatment of be typically the nickel waste water of 30-200mg/L.Adsorption method mainly uses humic acid resin, activity
The adsorbents such as charcoal carry out the nickel ion in adsorbent solution, but the industrial absorption commonly using is all expensive, constrains it extensive
Use.Chemical precipitation method is to work in coordination with materials such as polymer using alkaline matters such as sodium hydroxide to use, and removes the nickel in waste water
Ion, but its repeatedly to adjust ph process more complicated.The medicament preparation process complexity that some other processing method is related to is it is impossible to carry out
Effectively utilize.For the problems referred to above, find a kind of simple nickel-containing waste water treatment technology extremely urgent.
Electroslag is the typical solid waste discharged in EAF Steelmaking Process, and main utilization ways are works after grinding or granulation
For cement raw material, road-making material, ground backfilling material and some tile products, concrete product etc..
Because electroslag comprehensive utilization technique is also narrow, demand one kind is more efficient, simple utilization ways gesture is must
OK.If can be applied in field of environmental improvement, even more a kind of optimal path turned waste into wealth.
Content of the invention
The shortcoming of prior art in view of the above, it is an object of the invention to provide a kind of nickeliferous sewage-treating agent, uses
In the deficiency solving nickeliferous sewage water treatment method in prior art, simultaneously a kind of approach so that electroslag is turned waste into wealth.
For achieving the above object and other related purposes, the present invention provides a kind of electroslag preparing nickeliferous sewage-treating agent
In purposes.
Described electroslag also includes any one or a few in following technical characteristic：
(1) content of MgO is 5%～10%；
(2) content of CaO is 30%～40%；
(3) particle diameter of electroslag is less than or equal to 5 mesh.
Another aspect of the present invention additionally provides a kind of nickeliferous sewage-treating agent, and described nickeliferous sewage-treating agent includes electric furnace
Slag.
Preferably, described electroslag is steel-smelting electric furnace slag.
Preferably, electroslag also includes any one or a few in following characteristics：
(1) content of MgO is 5%～10%；
(2) content of CaO is 30%～40%；
(3) particle diameter of electroslag is less than or equal to 5 mesh.
Typical steel-smelting electric furnace slag mainly contains 10%-15% silicon dioxide (Si02), the magnesium oxide of 5%-10%
(MgO), the calcium oxide (CaO) of 30%-40%, the fe of 0.5%-1%, ferrum oxide (FeO, Fe of 25-35%2O3), and
A small amount of P205、Al2O3And sulfide etc., in electroslag the main existing forms of chemical composition have carbonate, silicate and
Oxide.MgO and CaO can hydrolyze generation OH-, significantly improve the pH of water body, generate Ni (OH) with Ni (II)2.
Another aspect of the present invention provides nickeliferous sewage-treating agent for processing the purposes of nickeliferous sewage.
Another aspect of the present invention provides method for treating water, and above-mentioned nickeliferous sewage-treating agent is mixed with nickeliferous sewage
Reaction.
Preferably, when the concentration of nickel in nickeliferous sewage is more than or equal to 50mg/L, the usage amount of described electroslag is more than
2.5g/L.
Preferably, when the concentration of nickel in nickeliferous sewage is more than or equal to 100mg/L, the usage amount of described electroslag is more than etc.
In 10g/L.
Preferably, when the concentration of nickel in nickeliferous sewage is more than or equal to 200mg/L, the usage amount of described electroslag is more than etc.
In 30g/L.
Preferably, described nickeliferous sewage-treating agent mixed the post-reacted time for 3～8 hours with sewage.
Preferably, after described nickeliferous sewage and nickeliferous sewage-treating agent hybrid reaction in sewage acid adding.
Preferably, described acid is sulphuric acid.
As described above, the nickeliferous sewage-treating agent of the present invention, have the advantages that：
1) present invention utilizes the feature of electroslag calcium oxide and magnesium oxide alkalescence, significantly reduces the nickel ion in waste water, with
When the step of less regulation waste water ph and medicament, greatly save cost；
2) electroslag that the present invention adopts has the composition of carbonate and silicate material, carbonate material can with nickel from
Son generates carbonate combine state, reduces its solubility.Silicate in electroslag can have necessarily in the presence of aqueous solution simultaneously
The hydrolysis of amount, the silicate gel of generation has larger surface area, can produce absorption with heavy metal ion and be co-precipitated
Effect, significantly reduces the nickel ion in sewage.Thinner electroslag also has certain pore structure, can Adsorption of Heavy Metals from
Son, in addition the heavy feature of electroslag bottom can also be deposited in speed faster, separation of solid and liquid process are simple, low cost
Honest and clean；
3) present invention has wide applicability to the concentration of nickel ion and the ph of original waste water, can concentration for the treatment of in 50-
500mg/l, ph, in the nickel waste water of 2-7, have preferable removal effect；
4) present invention has the characteristics that response speed is fast, flow process is short, and reaction can terminate substantially in 3 hours, significantly contracts
Short governance process, increases Governance Ability；
5) present invention adopts common trade waste circuit slag as administering medicament, belongs to the regeneration of garbage,
There is good society, economy, environmental benefit；
6) electroslag and precipitate can also be reclaimed after nickeliferous sewage being processed using the present invention, reach the mesh of recycling
, especially also contain metal in regenerant.
Specific embodiment
Below by way of specific instantiation, embodiments of the present invention are described, those skilled in the art can be by this specification
Disclosed content understands other advantages and effect of the present invention easily.The present invention can also be by addition different concrete realities
The mode of applying is carried out or applies, and the every details in this specification can also be based on different viewpoints and application, without departing from
Carry out various modifications and changes under the spirit of the present invention.
It should be clear that the process equipment specifically not indicated in the following example or device all using conventional equipment in the art or
Device.
In addition, it is to be understood that the one or more method and steps mentioned in the present invention do not repel before and after described combination step
Can also exist and can also insert additive method step between additive method step or the step that specifically mentions at these, unless separately
It is described；It should also be understood that the combination annexation between the one or more equipment/devices mentioned in the present invention is not repelled
Can also exist before and after described unit equipment/device other equipment/device or two equipment/devices specifically mentioning at these it
Between can also insert other equipment/device, unless otherwise stated.And, unless otherwise stated, the numbering of various method steps is only
Differentiate the convenient tool of various method steps, rather than for limiting the ordering of various method steps or limiting the enforceable model of the present invention
Enclose, being altered or modified of its relativeness, in the case of no essence change technology contents, enforceable when being also considered as the present invention
Category.
Embodiment 1
Using steel-smelting electric furnace slag as nickeliferous sewage-treating agent, in nickel waste water, the concentration of nickel is 200mg/l.Record electroslag
The content of middle MgO is 8%, and in electroslag, the content of CaO is 30%, and particle diameter is 5 mesh.Using being manually sprinkled in nickeliferous sewage, electric
The usage amount of slag is 10g/L.Response time is 3 hours, adds dilute sulfuric acid, record the pH of sewage after reaction completely in sewage
Discharge for 7 rears.
Embodiment 2
The usage amount of electroslag is 20g/L, and other are same as Example 1.
Embodiment 3
The usage amount of electroslag is 30g/L, and other are same as Example 1.
Embodiment 4
The usage amount of electroslag is 35g/L, and other are same as Example 1.
Embodiment 5
The usage amount of electroslag is 40g/L, and other are same as Example 1.
Embodiment 6
The usage amount of electroslag is 50g/L, and other are same as Example 1.
Embodiment 7
The usage amount of electroslag is 55g/L, and other are same as Example 1.
The impact to clearance for the usage amount of table 1 electroslag
The results are shown in Table 1 by understanding of embodiment 1-7, show to mix a certain amount of electroslag (Baosteel in nickel contamination waste water
Produce in factory) substantially can remove nickel ion in sewage, the increase treatment effect with addition is lifted further, works as interpolation
The waste water index that amount reaches after 30g/L post processing disclosure satisfy that GB8978-1996《Integrated wastewater discharge standard》Requirement.Waste water
In Leaching of Heavy Metals concentration adopt ICP-MS (U.S. produce Agilent 7700 type) to be measured.
Embodiment 8
Using steel-smelting electric furnace slag as nickeliferous sewage-treating agent, in nickel waste water, nickel concentration is 100mg/l, and pH is 2.Record electricity
In slag, the content of MgO is 10%, and in electroslag, the content of CaO is 40%, and particle diameter is 4 mesh.Using being manually sprinkled into nickeliferous sewage
In, the usage amount of electroslag is 10g/L.Response time is 3 hours, adds dilute sulfuric acid, record dirt after reaction completely in sewage
The pH of water is 7 rear discharges.
Embodiment 9
The pH of nickel waste water is 2, and other are same as Example 8.
Embodiment 10
The pH of nickel waste water is 3, and other are same as Example 8.
Embodiment 11
The pH of nickel waste water is 4, and other are same as Example 8.
Embodiment 12
The pH of nickel waste water is 5, and other are same as Example 8.
Embodiment 13
The pH of nickel waste water is 6, and other are same as Example 8.
The impact to clearance for the original pH of table 2 waste water
| Original Ph | 2 | 3 | 4 | 5 | 6 | 7 |
| Clearance (%) | 83.7 | 97.95 | 97.35 | 95.88 | 94.14 | 93.56 |
| PH after reaction | 5.46 | 9.89 | 9.95 | 10.02 | 10.05 | 10.07 |
Understanding of embodiment 8-13 the results are shown in Table 2, shows electric furnace Slag treatment nickel waste water to the pH of original waste water and concentration all
There is wide applicability, pH is respectively provided with good effect in the nickel waste water of 2-7, water body pH adopts pH meter to measure, pH meter is upper
MP511 type Series Precision acidometer/pH meter that Hai Sai Bole Instrument Ltd. sells.
Embodiment 14
Using steel-smelting electric furnace slag as nickeliferous sewage-treating agent, in nickel waste water, the concentration of nickel is 50mg/l, and pH is 4.Record
In electroslag, the content of MgO is 5%, and in electroslag, the content of CaO is 36%, and particle diameter is 4 mesh.Using being manually sprinkled into nickeliferous sewage
In, the usage amount of electroslag is 2.5g/L.Response time is 8 hours, adds dilute sulfuric acid, record dirt after reaction completely in sewage
The pH of water is 7 rear discharges.
Embodiment 15
The concentration of nickel waste water is 100mg/l, and other are identical with embodiment 14.
Embodiment 16
The concentration of nickel waste water is 200mg/l, and other are identical with embodiment 14.
Embodiment 17
The concentration of nickel waste water is 300mg/l, and other are identical with embodiment 14.
Embodiment 18
The concentration of nickel waste water is 400mg/l, and other are identical with embodiment 14.
Embodiment 19
The concentration of nickel waste water is 500mg/l, and other are identical with embodiment 14.
The impact to clearance for the table 3 solution original concentration
The clearance of embodiment 14-19 is shown in Table 3 it is seen then that electric furnace Slag treatment nickel waste water all has to the concentration of original waste water
Wide applicability, has good removal effect to nickel ion concentration in 50-500mg/l.
Embodiment 20
Using steel-smelting electric furnace slag as nickeliferous sewage-treating agent, in nickel waste water, nickel concentration is 200mg/l, and pH is 4.Record electricity
In slag, the content of MgO is 7%, and in electroslag, the content of CaO is 32%, and particle diameter is 4 mesh.Using being manually sprinkled into nickeliferous sewage
In, the usage amount of electroslag is 30g/L.Response time is 1 minute, adds dilute sulfuric acid, record dirt after reaction completely in sewage
The pH of water is 7 rear discharges.
Embodiment 21
Response time is 3 minutes, and other are identical with embodiment 20.
Embodiment 22
Response time is 5 minutes, and other are identical with embodiment 20.
Embodiment 23
Response time is 7 minutes, and other are identical with embodiment 20.
Embodiment 24
Response time is 10 minutes, and other are identical with embodiment 20.
Embodiment 25
Response time is 15 minutes, and other are identical with embodiment 20.
Embodiment 26
Response time is 30 minutes, and other are identical with embodiment 20.
Embodiment 27
Response time is 60 minutes, and other are identical with embodiment 20.
Embodiment 28
Response time is 90 minutes, and other are identical with embodiment 20.
Embodiment 29
Response time is 120 minutes, and other are identical with embodiment 20.
Embodiment 30
Response time is 150 minutes, and other are identical with embodiment 20.
Embodiment 31
Response time is 180 minutes, and other are identical with embodiment 20.
The impact to clearance for table 4 response time
The removal effect of embodiment 20-31 is shown in Table 4, shows electroslag the removal of nickel ion to be had faster and reacts speed
Degree, all can be basically completed removal after 180 minutes.
Above embodiment illustrates that embodiment disclosed by the invention, can not be interpreted as the limit to the present invention
System.Additionally, method, the change of compositionss in various modifications listed herein and invention, without departing from the scope of the present invention
Be obvious for those skilled in the art on the premise of spirit.Although having combined the multiple concrete of the present invention
Preferred embodiment has carried out specific description to the present invention, it is to be understood that, the present invention should not be limited only to these specific embodiments.
It is true that various modifications obvious for those skilled in the art as above all should include to obtain to invent
Within the scope of the invention.
Claims (12)
1. purposes in preparing nickeliferous sewage-treating agent for the electroslag.
2. purposes in preparing nickeliferous sewage-treating agent for the electroslag as claimed in claim 1 is it is characterised in that described electric furnace
Slag also includes any one or a few in following technical characteristic：
(1) content of MgO is 5%～10%；
(2) content of CaO is 30%～40%；
(3) particle diameter of electroslag is less than or equal to 5 mesh.
3. a kind of nickeliferous sewage-treating agent is it is characterised in that described nickeliferous sewage-treating agent includes electroslag.
4. nickeliferous sewage-treating agent according to claim 3 it is characterised in that：Described electroslag is steel-smelting electric furnace slag.
5. nickeliferous sewage-treating agent according to claim 3 it is characterised in that：Described electroslag is also included in following characteristics
Any one or a few：
(1) content of MgO is 5%～10%；
(2) content of CaO is 30%～40%；
(3) particle diameter of electroslag is less than or equal to 5 mesh.
6. a kind of method for treating water is it is characterised in that by the nickeliferous sewage disposal as described in claim 3-5 any claim
Agent and nickeliferous sewage hybrid reaction.
7. method for treating water according to claim 6 it is characterised in that：When the concentration of nickel in nickeliferous sewage is more than or equal to
During 50mg/L, the usage amount of described electroslag is more than 2.5g/L.
8. method for treating water according to claim 7 it is characterised in that：When the concentration of nickel in nickeliferous sewage is more than or equal to
During 100mg/L, the usage amount of described electroslag is more than or equal to 10g/L.
9. method for treating water according to claim 8 it is characterised in that：When the concentration of nickel in nickeliferous sewage is more than or equal to
During 200mg/L, the usage amount of described electroslag is more than or equal to 30g/L.
10. method for treating water according to claim 6 it is characterised in that：Described nickeliferous sewage-treating agent is mixed with sewage
The post-reacted time is 3～8 hours.
11. method for treating water according to claim 6 it is characterised in that：Described nickeliferous sewage and nickeliferous sewage-treating agent
After hybrid reaction in sewage acid adding.
12. method for treating water according to claim 11 it is characterised in that：Described acid is sulphuric acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610832553.2A CN106430479A (en) | 2016-09-19 | 2016-09-19 | Application of electric furnace slag in preparation of nickel-containing sewage treating agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610832553.2A CN106430479A (en) | 2016-09-19 | 2016-09-19 | Application of electric furnace slag in preparation of nickel-containing sewage treating agent |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105217978A (en) * | 2014-06-11 | 2016-01-06 | 南京理工大学 | A kind of resource utilization recycling produces device and the technique of steel slag cement |
| CN105753252A (en) * | 2016-03-31 | 2016-07-13 | 常州大学 | Device for treating nickel-copper containing electroplating wastewater |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105217978A (en) * | 2014-06-11 | 2016-01-06 | 南京理工大学 | A kind of resource utilization recycling produces device and the technique of steel slag cement |
| CN105753252A (en) * | 2016-03-31 | 2016-07-13 | 常州大学 | Device for treating nickel-copper containing electroplating wastewater |
Non-Patent Citations (1)
| Title |
|---|
| 赵艳锋等: "钢渣处理含镍废水的研究", 《科学技术与工程》 * |
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