CN107324534A - A kind of method that utilization ferriferous oxide handles the waste acid containing arsenic - Google Patents
A kind of method that utilization ferriferous oxide handles the waste acid containing arsenic Download PDFInfo
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- CN107324534A CN107324534A CN201710581619.XA CN201710581619A CN107324534A CN 107324534 A CN107324534 A CN 107324534A CN 201710581619 A CN201710581619 A CN 201710581619A CN 107324534 A CN107324534 A CN 107324534A
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- waste acid
- arsenic
- ferriferous oxide
- containing arsenic
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- 239000002253 acid Substances 0.000 title claims abstract description 65
- 239000002699 waste material Substances 0.000 title claims abstract description 63
- 229910052785 arsenic Inorganic materials 0.000 title claims abstract description 53
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000000203 mixture Substances 0.000 claims abstract description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052742 iron Inorganic materials 0.000 claims abstract description 7
- 239000011259 mixed solution Substances 0.000 claims description 26
- 239000000706 filtrate Substances 0.000 claims description 22
- 230000001105 regulatory effect Effects 0.000 claims description 15
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 238000001914 filtration Methods 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- 239000011343 solid material Substances 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 18
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 10
- 239000010949 copper Substances 0.000 description 10
- 238000003723 Smelting Methods 0.000 description 9
- 229910052802 copper Inorganic materials 0.000 description 9
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 8
- VETKVGYBAMGARK-UHFFFAOYSA-N arsanylidyneiron Chemical compound [As]#[Fe] VETKVGYBAMGARK-UHFFFAOYSA-N 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- 239000011701 zinc Substances 0.000 description 7
- 239000000470 constituent Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 229910052602 gypsum Inorganic materials 0.000 description 3
- 239000010440 gypsum Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 239000011669 selenium Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- 239000004280 Sodium formate Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- LULLIKNODDLMDQ-UHFFFAOYSA-N arsenic(3+) Chemical compound [As+3] LULLIKNODDLMDQ-UHFFFAOYSA-N 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- VLXBWPOEOIIREY-UHFFFAOYSA-N dimethyl diselenide Natural products C[Se][Se]C VLXBWPOEOIIREY-UHFFFAOYSA-N 0.000 description 1
- WQOXQRCZOLPYPM-UHFFFAOYSA-N dimethyl disulfide Chemical group CSSC WQOXQRCZOLPYPM-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- BMWMWYBEJWFCJI-UHFFFAOYSA-K iron(3+);trioxido(oxo)-$l^{5}-arsane Chemical compound [Fe+3].[O-][As]([O-])([O-])=O BMWMWYBEJWFCJI-UHFFFAOYSA-K 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- HLBBKKJFGFRGMU-UHFFFAOYSA-M sodium formate Chemical compound [Na+].[O-]C=O HLBBKKJFGFRGMU-UHFFFAOYSA-M 0.000 description 1
- 235000019254 sodium formate Nutrition 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000010626 work up procedure Methods 0.000 description 1
Classifications
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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
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/5272—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using specific organic precipitants
-
- 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
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
-
- 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
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
-
- 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
- C02F2101/103—Arsenic compounds
-
- 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
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The present invention relates to a kind of method that utilization ferriferous oxide handles the waste acid containing arsenic, belong to hydrometallurgical technology and Waste Disposal Technology field.Ferriferous oxide is added in waste acid containing arsenic by the inventive method, ferriferous oxide and waste acid react generation solidliquid mixture, are filtrated to get stable arsenic-containing solid material, realize the removing of arsenic in waste acid containing arsenic, and the harm of arsenic is prevented, reach the purpose that waste acid is handled using cheap source of iron；This technological operation is simple, production cost is low, to environmental beneficial, with broader market prospects.
Description
Technical field
The present invention relates to a kind of method that utilization ferriferous oxide handles the waste acid containing arsenic, belong to hydrometallurgical technology and discarded object
Processing technology field.
Background technology
At present, China's blister copper yield is every year 520000 tons or so, and these copper largely use the sulphur in pyrometallurgical smelting, copper mine
Element is separated during the pyrometallurgical smelting of copper for relieving haperacidity, and a large amount of acid waste waters can be produced in acid manufacturing processes, referred to as " dirty
Acid ".Arsenic of the association in copper mine in the smelting process of copper（As）, cadmium（Cd）, lead（Pb）, copper（Cu）, zinc（Zn）, mercury（Hg）、
Selenium（Se）Enter acid-making process Deng with flue gas during smelting, the purification by acid-making process to flue gas during smelting so that flue gas qualified discharge.
And impurity element of the association in copper mine then largely enters in " waste acid " periodically extracted out.It is estimated that producing 100000 tons of copper smeltings per year
The supporting lime-iron salt method technique in refinery produces about 10,000 tons of gypsum tailings per year, and thus, China Copper smelting industry will produce million every year
The slag sludge of gypsum containing arsenic of ton or so.And whole Chinese smelting industry, the waste material containing arsenic stored up over the years is up to tens million of tons.
The gypsum tailings containing arsenic that smeltery and its neighboring area are stored up for a long time may by poor management in terms of the reason for, be taken as
General industry solid waste and scattered away from regulatory area, so as to cause soil or Farmland contamination, arable land heavy metal pollution is tight
Agricultural product quality, indirect hazard human health are threatened again.
Cut-off will be to the end of the year 2015, and China possesses at the iron ore place of production 1995 altogether, and iron ore finds out the t of resource reserve 578.72 hundred million (storages
118.36 hundred million t, the t of basic unit price 213.57 hundred million are measured, stock number 365.15 hundred million is t).At whole nation exploitation mining area and capital construction mining area 696, account for
With the t of reserves 20,200,000,000, the 44% of the whole reserves of iron ore is accounted for.Substantial amounts of iron ore is mainly used in industrial iron and steel smelting, and steel is being used
During be converted into ferriferous oxide due to the reason such as getting rusty, aoxidizing, at present, substantial amounts of ferriferous oxide can not obtain effective profit
With, the present invention obtains the characteristic of molysite using ferriferous oxide and acid reaction, and ferriferous oxide and waste acid hybrid reaction are handled into waste acid,
Cheap ferriferous oxide can be comprehensively utilized and administer waste acid, low-cost resource is effectively utilized.
The content of the invention
It is an object of the invention to provide a kind of method that utilization ferriferous oxide handles the waste acid containing arsenic, this method is to utilize iron oxygen
Compound is reacted with waste acid, the matter containing arsenic stablized, and prevents the harm of arsenic, realizes the mesh that waste acid is handled with cheap ferriferous oxide
, this method is simple to operate, and cost is low, has to environmental protection and certain actively promotes effect.
Technical scheme is as follows：Ferriferous oxide is added in waste acid containing arsenic first, certain time is reacted under normal temperature,
Mixed solution is obtained, mixed solution pH is adjusted, is heated to certain temperature and reacts after a period of time, obtain solidliquid mixture, is filtered,
Solid-state matter containing arsenic and filtrate are obtained, flocculant is added into filtrate and carries out purified treatment, that is, completes the place to the waste acid containing arsenic
Reason.
The method for being handled the waste acid containing arsenic in the present invention using ferriferous oxide, is comprised the following steps that：
（1）Ferriferous oxide is added into waste acid containing arsenic, wherein iron arsenic mol ratio is 1:1-3:1,1 ~ 4h of stirring reaction under normal temperature, are obtained
To mixed solution；
（2）Regulating step（1）The pH value of middle mixed solution is 1 ~ 3, and mixed solution then is heated into 70 ~ 90 DEG C, reaction 6 ~
12h, obtains solidliquid mixture；
（3）Filtration step（2）In solidliquid mixture, filter residue is matter containing arsenic；
（4）To step（3）Flocculant is added in obtained filtrate and carries out purified treatment, wherein flocculant is DMDS for ammonia
Base sodium formate.
Ferriferous oxide source is wide in the present invention, and price is low, while serve the effect of conditioning agent and reactant, reached with
Cheap ferriferous oxide handles the purpose of the waste acid containing arsenic, reduces production cost, economically feasible.
Beneficial effects of the present invention：
（1）The inventive method is utilized in ferriferous oxide and waste acid, is greatly reduced the solid produced in waste acid processing procedure and is given up
Gurry, it is economic and environment-friendly；
（2）The inventive method reacts ferriferous oxide and waste acid, generates stable matter containing arsenic, realizes effective place of waste acid
Reason, reduces the murder by poisoning degree of metallic arsenic；
（3）The inventive method handles waste acid using ferriferous oxide, and with the solution after flocculant purified treatment, makes arsenic and other
Heavy metal ion is from Transfer in Aqueous Solution moves to the sediments such as the inactive ferric arsenate of chemical property, and supernatant is work up to standard
Industry water, it is simple with operating procedure, it is with low cost, the features such as high treating effect.
Simple possible of the present invention, cost is relatively low, and treatment effect is preferably, beneficial to environmental protection, while being the waste acid containing arsenic
Processing is there is provided a kind of new technical method, with wide application prospect.
Embodiment
The present invention is described in further detail below by embodiment, but the scope of the present invention is not limited in described
Hold.
Embodiment 1：Waste acid containing arsenic is handled using ferriferous oxide, concrete operations are as follows：
（1）Waste acid respectively constitutes constituent concentration, as shown in table 1,
The waste acid each component concentration of table 1.（mg/L）
| As | Cu | H | Zn | Cd | F |
| 13000 | 512.03 | 1.68 | 840.94 | 145.95 | 3214.12 |
（2）Weigh a certain amount of Fe3O4, it is added in above-mentioned waste acid solution, iron arsenic mol ratio is 1:1, stirring reaction 1 is small under normal temperature
When, obtain mixed solution；
（3）Use NaOH regulating steps（2）Mixed solution pH be 3, by the mixed solution regulated be heated to 70 DEG C reaction 6h,
Obtain solidliquid mixture；
（4）Use filter plant filtration step（3）Obtained solidliquid mixture, obtains arsenic-containing solid material and filtrate, will contain arsenic and consolidate
State material carries out stacking processing, and addition flocculant SDD carries out purified treatment into filtrate.
（5）The filtrate each component concentration of table 2.（mg/L）
| As | Cu | H | Zn | Cd | F |
| 353.6 | 212 | 0..001 | 256 | 46 | 1423 |
From above-mentioned data, the removal efficiency of arsenic has reached 97.28% in the waste acid of the present embodiment 1, and the content of other components is also obtained
Certain reduction is arrived, it is possible to achieve effective processing of waste acid.
Embodiment 2：The method that the waste acid containing arsenic is handled using ferriferous oxide, is comprised the following steps that：
（1）Waste acid is respectively constituted shown in constituent concentration be the same as Example 1；
（2）Weigh a certain amount of Fe3O4, it is added in above-mentioned waste acid solution, wherein iron arsenic mol ratio is 1:1, stir under normal temperature anti-
Answer 3 hours, obtain mixed solution；
（3）Use NaOH regulating steps（2）Mixed solution pH be 2, by the mixed solution regulated be heated to 80 DEG C reaction 8h,
Obtain solidliquid mixture；
（4）Use filter plant filtration step（3）Obtained solidliquid mixture, obtains arsenic-containing solid material and filtrate, will contain arsenic and consolidate
State material carries out stacking processing, and addition flocculant SDD carries out purified treatment into filtrate.
（5）The filtrate each component concentration of table 3.（mg/L）
| As | Cu | H | Zn | Cd | F |
| 55.56 | 201 | 0.013 | 241 | 39 | 1236 |
From above-mentioned data, the removal efficiency of arsenic has reached 99.57% in the waste acid of the present embodiment 2, and the content of other components is also obtained
Certain reduction is arrived, it is possible to achieve effective processing of waste acid.
Embodiment 3：The method that the waste acid containing arsenic is handled using ferriferous oxide, is comprised the following steps that：
（1）Waste acid is respectively constituted shown in constituent concentration be the same as Example 1；
（2）Weigh a certain amount of Fe3O4, it is added in above-mentioned waste acid solution, wherein iron arsenic mol ratio is 2:1, stir under normal temperature anti-
Answer 4 hours, obtain mixed solution,；
（3）Use NaOH regulating steps（2）Mixed solution pH be 1, by the mixed solution regulated be heated to 90 DEG C reaction
12h, obtains solidliquid mixture；
（4）Use filter plant filtration step（3）Obtained solidliquid mixture, obtains arsenic-containing solid material and filtrate, will contain arsenic and consolidate
State material carries out stacking processing, and addition flocculant SDD carries out purified treatment into filtrate.
（5）The filtrate each component concentration of table 4.（mg/L）
| As | Cu | H | Zn | Cd | F |
| 391.6 | 123 | 0..125 | 165 | 27 | 847 |
From above-mentioned data, the removal efficiency of arsenic has reached 96.99% in the waste acid of the present embodiment 3, and the content of other components is also obtained
Certain reduction is arrived, it is possible to achieve effective processing of waste acid.
Embodiment 4：The method that the waste acid containing arsenic is handled using ferriferous oxide, is comprised the following steps that：
（1）Waste acid is respectively constituted shown in constituent concentration be the same as Example 1；
（2）Weigh a certain amount of Fe3O4, it is added in above-mentioned waste acid solution, wherein iron arsenic mol ratio is 3:1, stir under normal temperature anti-
Answer 2 hours, obtain mixed solution；
（3）Use NaOH regulating steps（2）Mixed solution pH be 2, by the mixed solution regulated be heated to 90 DEG C reaction
12h, obtains solidliquid mixture；
（4）Use filter plant filtration step（3）Obtained solidliquid mixture, obtains arsenic-containing solid material and filtrate, will contain arsenic and consolidate
State material carries out stacking processing, and addition flocculant SDD carries out purified treatment into filtrate.
（5）The filtrate each component concentration of table 5.（mg/L）
| As | Cu | H | Zn | Cd | F |
| 9.018 | 96 | 0.134 | 114 | 23 | 543 |
From above-mentioned data, the removal efficiency of the waste acid of the present embodiment has reached 99.93%, and the content of other components is also obtained
Certain reduction, it is possible to achieve effective processing of waste acid.
Embodiment 5：The method that the waste acid containing arsenic is handled using ferriferous oxide, is comprised the following steps that：
（1）Waste acid is respectively constituted shown in constituent concentration be the same as Example 1；
（2）Weigh a certain amount of Fe2O3, it is added in above-mentioned waste acid solution, wherein iron arsenic mol ratio is 3:1, stir under normal temperature anti-
Answer 2 hours, obtain mixed solution；
（3）Use NaOH regulating steps（2）Mixed solution pH be 2, by the mixed solution regulated be heated to 90 DEG C reaction
12h, obtains solidliquid mixture；
（4）Use filter plant filtration step（3）Obtained solidliquid mixture, obtains arsenic-containing solid material and filtrate, will contain arsenic and consolidate
State material carries out stacking processing, and addition flocculant SDD carries out purified treatment into filtrate.
（5）The filtrate each component concentration of table 6.（mg/L）
| As | Cu | H | Zn | Cd | F |
| 18.021 | 95 | 0.133 | 113 | 24 | 560 |
From above-mentioned data, the removal efficiency of the waste acid of the present embodiment has reached 99.86%, and the content of other components is also obtained
Certain reduction, it is possible to achieve effective processing of waste acid.
Embodiment 6：The method that the waste acid containing arsenic is handled using ferriferous oxide, is comprised the following steps that：
（1）Waste acid is respectively constituted shown in constituent concentration be the same as Example 1；
（2）A certain amount of FeO is weighed, is added in above-mentioned waste acid solution, wherein iron arsenic mol ratio is 3:1, stirring reaction 2 under normal temperature
Hour, obtain mixed solution；
（3）Use NaOH regulating steps（2）Mixed solution pH be 2, by the mixed solution regulated be heated to 90 DEG C reaction
12h, obtains solidliquid mixture；
（4）Use filter plant filtration step（3）Obtained solidliquid mixture, obtains arsenic-containing solid material and filtrate, will contain arsenic and consolidate
State material carries out stacking processing, and addition flocculant SDD carries out purified treatment into filtrate.
（5）The filtrate each component concentration of table 7.（mg/L）
| As | Cu | H | Zn | Cd | F |
| 23.52 | 87 | 0.124 | 107 | 21 | 558 |
From above-mentioned data, the removal efficiency of the waste acid of the present embodiment has reached 99.81%, and the content of other components is also obtained
Certain reduction, it is possible to achieve effective processing of waste acid.
Claims (3)
1. a kind of method that utilization ferriferous oxide handles the waste acid containing arsenic, it is characterised in that carry out as follows：
（1）1 ~ 4h of stirring reaction under ferriferous oxide, normal temperature is added into waste acid containing arsenic, mixed solution is obtained；
（2）Regulating step（1）The pH value of middle mixed solution is 1 ~ 3, and mixed solution then is heated into 70 ~ 90 DEG C, reaction 6 ~
12h, obtains solidliquid mixture；
（3）Filtration step（2）In solidliquid mixture, filter residue is matter containing arsenic；
（4）To step（3）Flocculant is added in obtained filtrate and carries out purified treatment.
2. the method that utilization ferriferous oxide according to claim 1 handles the waste acid containing arsenic, it is characterised in that：Step（1）Iron
Arsenic mol ratio is 1:1-3:1.
3. the method that utilization ferriferous oxide according to claim 1 handles the waste acid containing arsenic, it is characterised in that：Step（4）In
Flocculant is SDD.
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| CN201710581619.XA CN107324534A (en) | 2017-07-17 | 2017-07-17 | A kind of method that utilization ferriferous oxide handles the waste acid containing arsenic |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111547777A (en) * | 2020-05-22 | 2020-08-18 | 昆明理工大学 | Method for removing arsenic in contaminated acid by ferroferric oxide/kaolin nanocomposite |
| CN111569823A (en) * | 2020-05-22 | 2020-08-25 | 昆明理工大学 | Method for removing arsenic by adsorbing iron-manganese oxide/mesoporous silicon oxide adsorbent |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103553197A (en) * | 2013-11-05 | 2014-02-05 | 红河学院 | Method for removing arsenic and antimony in industrial wastewater by using smelting furnace slag |
| KR20140070727A (en) * | 2012-11-26 | 2014-06-11 | 한국지질자원연구원 | Adsorbent, Method for producing the adsorbent and Method for remediation of contaminated water using the same |
| CN104860445A (en) * | 2015-06-03 | 2015-08-26 | 安徽新中远化工科技有限公司 | Method for treating arsenic-containing wastewater by using pyrite cinder |
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| KR20140070727A (en) * | 2012-11-26 | 2014-06-11 | 한국지질자원연구원 | Adsorbent, Method for producing the adsorbent and Method for remediation of contaminated water using the same |
| CN103553197A (en) * | 2013-11-05 | 2014-02-05 | 红河学院 | Method for removing arsenic and antimony in industrial wastewater by using smelting furnace slag |
| CN104860445A (en) * | 2015-06-03 | 2015-08-26 | 安徽新中远化工科技有限公司 | Method for treating arsenic-containing wastewater by using pyrite cinder |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111547777A (en) * | 2020-05-22 | 2020-08-18 | 昆明理工大学 | Method for removing arsenic in contaminated acid by ferroferric oxide/kaolin nanocomposite |
| CN111569823A (en) * | 2020-05-22 | 2020-08-25 | 昆明理工大学 | Method for removing arsenic by adsorbing iron-manganese oxide/mesoporous silicon oxide adsorbent |
| CN111547777B (en) * | 2020-05-22 | 2022-01-28 | 昆明理工大学 | Method for removing arsenic in contaminated acid by ferroferric oxide/kaolin nanocomposite |
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