CN104645544B - Processing method containing zinc, the dissolving slag of lead - Google Patents
Processing method containing zinc, the dissolving slag of lead Download PDFInfo
- Publication number
- CN104645544B CN104645544B CN201410183814.3A CN201410183814A CN104645544B CN 104645544 B CN104645544 B CN 104645544B CN 201410183814 A CN201410183814 A CN 201410183814A CN 104645544 B CN104645544 B CN 104645544B
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- lead
- slag
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D3/00—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances
- A62D3/30—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents
- A62D3/33—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents by chemical fixing the harmful substance, e.g. by chelation or complexation
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
- A62D2101/40—Inorganic substances
- A62D2101/43—Inorganic substances containing heavy metals, in the bonded or free state
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D2203/00—Aspects of processes for making harmful chemical substances harmless, or less harmful, by effecting chemical change in the substances
- A62D2203/04—Combined processes involving two or more non-distinct steps covered by groups A62D3/10 - A62D3/40
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of processing method containing zinc, the dissolving slag of lead, belong to waste processing arts.The present invention is mainly reacted with the harmful substance such as zinc, lead in dissolving slag using sulphion and produces stable sediment, so as to reduce containing zinc, lead dissolving slag in the leaching content of zinc and lead heavy metal, so as to containing zinc, lead dissolving slag to caused by environment risk and potential safety hazard.
Description
Technical field
The invention belongs to waste processing arts, and in particular to a kind of processing method containing zinc, the dissolving slag of lead.
Background technology
In the industrial production, while addition sulfuric acid dissolution obtains solution of zinc sulfate after raw material oxidation zinc impregnation slurry, along with
Dissolve the generation of slag.Containing harmful substances such as zinc, lead in the oxidizing slag, the nuisances such as zinc, the lead of the waste residue are found by detection
The leaching too high levels of matter, belong to hazardous waste, if directly being discharged without processing, will necessarily cause shadow to environmental quality
Ring, or even living space to people and health bring the harm for being difficult to reverse, and have very big environmental risk and peace
Full hidden danger.It is, therefore, necessary to carry out advanced treating to the dissolving slag, the leaching for reducing the harmful substances such as the zinc in the waste residue and lead contains
Amount, and from reaching the purpose that reduces or even eliminate environmental risk and potential safety hazard.
The content of the invention
The invention provides a kind of processing method containing zinc, the dissolving slag of lead, this method can be reduced containing zinc, lead
The leaching content of the harmful substance such as zinc and lead in slag is dissolved, so as to reduce risk and potential safety hazard to caused by environment.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is：
A kind of processing method containing zinc, the dissolving slag of lead, this method comprise the following steps：
A, pending dissolving slag and solution A are added into reactor under agitation, and passes through both reactants
Addition, control the acid-base value of material in reactor be not less than pH=14, the time was no less than 10 minutes；
B, after step A reaction, continuation adds pending dissolving slag and solution into reactor under agitation
A, and by the addition of both reactants, the acid-base value of material in reactor is controlled in the range of 7≤pH ＜ 9, the time
No less than 10 minutes；
C, after step B reaction, continuation adds pending dissolving slag and solution into reactor under agitation
A, and by the addition of both reactants, control the acid-base value of liquid in reactor to reach 9≤pH≤10；
D, the slag charge after step C reaction in reactor is filtered out.
Further, the solution A refers to the mixed of one or both of both barium sulfide solution and sodium sulfide solution
Compound.
Due to being had the advantages that using above-mentioned technical proposal, the present invention：
The present invention under basic conditions, makes zinc, lead and sulphion fully react the sediment of generation larger particles using first,
To absorb next caused finely ground particle substance；Then again under the conditions of weak base, it is sufficiently stirred, breaks what is adsorbed in dissolving slag
The balance of zinc, lead, its zinc, lead for containing fully is discharged and continue the generation little particle sediment that reacts with sulphion,
And adsorbed by caused bulky grain sediment before；Finally adjust again to certain acid-base value, it is ensured that remaining zinc, lead energy
The method fully reacted with sulphion, reduce containing zinc, lead dissolving slag in the leaching content of zinc and lead, so as to reduce to environment
Caused by risk and potential safety hazard.
Embodiment
Embodiment 1
A kind of processing method containing zinc, the dissolving slag of lead, this method comprise the following steps：
A, pending dissolving slag and barium sulfide solution are added into reactor under agitation, is detected with pH test paper anti-
Answer the acid-base value of material in device, in this way pH test paper detection show the material acid-base value do not reach pH=14, then by adjust this two
The addition of kind reactant, its acid-base value is set to be not less than pH=14, the time is 10 minutes；
B, after step A reaction, continuation adds pending dissolving slag and vulcanization into reactor under agitation
Barium solution, the acid-base value of material in reactor is detected with pH test paper, in this way the detection of pH test paper show the acid-base value of the material 7≤
In the range of pH ＜ 9, then by adjusting the addition of both reactants, make its acid-base value in the range of 7≤pH ＜ 9, when
Between be 10 minutes；
C, after step B reaction, continuation adds pending dissolving slag and vulcanization into reactor under agitation
Barium solution, the acid-base value of material in reactor is detected with pH test paper, pH test paper detection in this way shows that the acid-base value of the material is not
PH=10, then by adjusting the addition of both reactants, it is pH=10 to make its acid-base value；
D, the slag charge after step C reaction in reactor is filtered out.
According to《Hazardous waste judging standard, leaching characteristic identification》（GB5080.3—2007）With《Hazardous waste differentiates mark
Standard, corrosivity differentiate》（GB5085.1—2007）Discrimination method, in the present embodiment containing zinc, lead dissolving Slag treatment before
Toxicity discriminating is carried out respectively afterwards and corrosivity differentiates that it the results are shown in Table 1.
The solid waste leaching test result of table 1
（Unit：Wherein, copper, lead, zinc, the unit of cadmium are mg/L；PH value is dimensionless；Mercury, the unit of arsenic are μ g/L）
As can be seen from the above table, by the processing of the present embodiment, can not only reduce containing zinc, lead dissolving slag in zinc
With the leaching content of lead, the leaching content of copper, cadmium, mercury, arsenic can be also reduced, reduces the dissolving slag pair containing zinc, lead as far as possible
Risk caused by environment and potential safety hazard.
Embodiment 2
A kind of processing method containing zinc, the dissolving slag of lead, this method comprise the following steps：
A, pending dissolving slag and sodium sulfide solution are added into reactor under agitation, is detected with pH test paper anti-
Answer the acid-base value of material in device, in this way pH test paper detection show the material acid-base value do not reach pH=14, then by adjust this two
The addition of kind reactant, its acid-base value is set to be not less than pH=14, the time is 15 minutes；
B, after step A reaction, continuation adds pending dissolving slag and vulcanization into reactor under agitation
Sodium solution, the acid-base value of material in reactor is detected with pH test paper, in this way the detection of pH test paper show the acid-base value of the material 7≤
In the range of pH ＜ 9, then by adjusting the addition of both reactants, make its acid-base value in the range of 7≤pH ＜ 9, when
Between be 10 minutes；
C, after step B reaction, continuation adds pending dissolving slag and vulcanization into reactor under agitation
Sodium solution, the acid-base value of material in reactor is detected with pH test paper, pH test paper detection in this way shows that the acid-base value of the material is not
PH=9, then by adjusting the addition of both reactants, it is pH=9 to make its acid-base value；
D, the slag charge after step C reaction in reactor is filtered out.
According to《Hazardous waste judging standard, leaching characteristic identification》（GB5080.3—2007）With《Hazardous waste differentiates mark
Standard, corrosivity differentiate》（GB5085.1—2007）Discrimination method, in the present embodiment containing zinc, lead dissolving Slag treatment before
Toxicity discriminating is carried out respectively afterwards and corrosivity differentiates that it the results are shown in Table 2.
The solid waste leaching test result of table 2
（Unit：Wherein, copper, lead, zinc, the unit of cadmium are mg/L；PH value is dimensionless；Mercury, the unit of arsenic are μ g/L）
From upper table 2 as can be seen that by the processing of the present embodiment, can not only reduce containing zinc, lead dissolving slag in
The leaching content of zinc and lead heavy metal, the leaching content of copper, cadmium, mercury, arsenic can be also reduced, reduced as far as possible containing zinc, lead
Dissolve slag risk and potential safety hazard to caused by environment.
Embodiment 3
A kind of processing method containing zinc, the dissolving slag of lead, this method comprise the following steps：
A, pending dissolving slag, barium sulfide solution and sodium sulfide solution are added into reactor under agitation, is used
The acid-base value of material in pH test paper detection reactor, in this way pH test paper detection show that the acid-base value of the material does not reach pH=14, then
By adjusting the addition of these three reactants, its acid-base value is set to be not less than pH=14, the time is 10 minutes；
B, after step A reaction, continuation adds pending dissolving slag, barium sulphide into reactor under agitation
Solution and sodium sulfide solution, the acid-base value of material in reactor is detected with pH test paper, pH test paper detection in this way shows the material
Acid-base value, then by adjusting the addition of these three reactants, makes its acid-base value in 7≤pH ＜ 9 in the range of 7≤pH ＜ 9
In the range of, the time is 15 minutes；
C, after step B reaction, continuation adds pending dissolving slag, barium sulphide into reactor under agitation
Solution and sodium sulfide solution, the acid-base value of material in reactor is detected with pH test paper, pH test paper detection in this way shows the material
Acid-base value is not pH=10, then by adjusting the addition of these three reactants, it is pH=10 to make its acid-base value；
D, the slag charge after step C reaction in reactor is filtered out.
According to《Hazardous waste judging standard, leaching characteristic identification》（GB5080.3—2007）With《Hazardous waste differentiates mark
Standard, corrosivity differentiate》（GB5085.1—2007）Discrimination method, in the present embodiment containing zinc, lead dissolving Slag treatment before
Toxicity discriminating is carried out respectively afterwards and corrosivity differentiates that it the results are shown in Table 3.
The solid waste leaching test result of table 3
（Unit：Wherein, copper, lead, zinc, the unit of cadmium are mg/L；PH value is dimensionless；Mercury, the unit of arsenic are μ g/L）
As can be seen from the above table, by the processing of the present embodiment, can not only reduce containing zinc, lead dissolving slag in zinc
With the leaching content of lead heavy metal, can also reduce the leaching content of copper, cadmium, mercury, arsenic, reduce as far as possible containing zinc, lead it is molten
Solve slag risk and potential safety hazard to caused by environment.
Claims (1)
1. a kind of processing method containing zinc, the dissolving slag of lead, it is characterised in that comprise the following steps：
A, pending dissolving slag and solution A, and adding by both reactants are added into reactor under agitation
Dosage, the acid-base value of material in reactor is controlled to be not less than pH=14, the time is no less than 10 minutes；Wherein, the solution A refers to sulphur
Change the mixture of one or both of both barium solution and sodium sulfide solution；
B, after step A reaction, continuation adds pending dissolving slag and solution A into reactor under agitation, and
By the addition of both reactants, controlling the acid-base value of material in reactor, the time is many in the range of 7≤pH ＜ 9
In 10 minutes；
C, after step B reaction, continuation adds pending dissolving slag and solution A into reactor under agitation, and
By the addition of both reactants, the acid-base value of liquid in reactor is controlled to reach 9≤pH≤10；
D, the slag charge after step C reaction in reactor is filtered out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410183814.3A CN104645544B (en) | 2014-05-04 | 2014-05-04 | Processing method containing zinc, the dissolving slag of lead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410183814.3A CN104645544B (en) | 2014-05-04 | 2014-05-04 | Processing method containing zinc, the dissolving slag of lead |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104645544A CN104645544A (en) | 2015-05-27 |
| CN104645544B true CN104645544B (en) | 2017-11-17 |
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| CN201410183814.3A Expired - Fee Related CN104645544B (en) | 2014-05-04 | 2014-05-04 | Processing method containing zinc, the dissolving slag of lead |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996003181A1 (en) * | 1994-07-22 | 1996-02-08 | Tresold Tratamiento De Residuos Solidos, S.L. | Method for processing and inerting ashes obtained from solid residues subjected to thermal processes |
| CN1270146A (en) * | 1999-04-08 | 2000-10-18 | 柳州市环境保护科学研究所 | Process for treating sewage containing Zn and Cd |
| CN1549794A (en) * | 2001-09-03 | 2004-11-24 | 株式会社阿库泰克 | Method of treating heavy-metal-containing wastewater with sulfidizing agent and treatment apparatus |
| CN102274605A (en) * | 2010-06-09 | 2011-12-14 | 栗田工业株式会社 | Stabilization treatment method for heavy metal containing heavy metal dust |
| CN102719675A (en) * | 2012-06-18 | 2012-10-10 | 山东国大黄金股份有限公司 | Method for comprehensively recovering zinc, lead and silver from waste residues generated in zinc smelting |
| CN102921142A (en) * | 2012-11-06 | 2013-02-13 | 莱沃睿智绿色科技（北京）有限公司 | Heavy metal pollutant immobilized reagent composition and immobilization treatment method |
-
2014
- 2014-05-04 CN CN201410183814.3A patent/CN104645544B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996003181A1 (en) * | 1994-07-22 | 1996-02-08 | Tresold Tratamiento De Residuos Solidos, S.L. | Method for processing and inerting ashes obtained from solid residues subjected to thermal processes |
| CN1270146A (en) * | 1999-04-08 | 2000-10-18 | 柳州市环境保护科学研究所 | Process for treating sewage containing Zn and Cd |
| CN1549794A (en) * | 2001-09-03 | 2004-11-24 | 株式会社阿库泰克 | Method of treating heavy-metal-containing wastewater with sulfidizing agent and treatment apparatus |
| CN102274605A (en) * | 2010-06-09 | 2011-12-14 | 栗田工业株式会社 | Stabilization treatment method for heavy metal containing heavy metal dust |
| CN102719675A (en) * | 2012-06-18 | 2012-10-10 | 山东国大黄金股份有限公司 | Method for comprehensively recovering zinc, lead and silver from waste residues generated in zinc smelting |
| CN102921142A (en) * | 2012-11-06 | 2013-02-13 | 莱沃睿智绿色科技（北京）有限公司 | Heavy metal pollutant immobilized reagent composition and immobilization treatment method |
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| Publication number | Publication date |
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| CN104645544A (en) | 2015-05-27 |
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Granted publication date: 20171117 Termination date: 20180504 |