SU528266A1 - The method of sewage treatment and production sulphate solutions from the mill - Google Patents
The method of sewage treatment and production sulphate solutions from the millInfo
- Publication number
- SU528266A1 SU528266A1 SU1670500A SU1670500A SU528266A1 SU 528266 A1 SU528266 A1 SU 528266A1 SU 1670500 A SU1670500 A SU 1670500A SU 1670500 A SU1670500 A SU 1670500A SU 528266 A1 SU528266 A1 SU 528266A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- mouse
- sewage treatment
- mill
- sulphate solutions
- production
- Prior art date
Links
Landscapes
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Description
Изобретение относитс к способам очистки от мышь ка промышленных стоков и производственных растворов сернокислотного производства и заводов цветной металлургии.The invention relates to methods for cleaning the mouse of industrial effluents and industrial solutions of sulfuric acid production and non-ferrous metallurgy plants.
Известен способ очистки от мышь ка сточных вод и производственных сульфатных растворов путем осаждени мышь ка с помош;ью электроотрицательных металлов, например железа.There is a known method of cleaning the mouse from waste water and industrial sulphate solutions by precipitating the mouse with electronegative metals, such as iron.
Недостатками известного способа вл ютс неполное использование металла и относительно невысока степень осаждени мышь ка (не более 30%) и выде«тение в процессе цементации довитого мышь ковистого водорода .The disadvantages of this method are the incomplete use of the metal and the relatively low degree of deposition of the mouse (no more than 30%) and the release of hard hydrogen in the cementation process.
С целью интенсификации процесса и обеспечени его безопасности в предлагаемом способе в очищаемый мышь ксодержащий раствор ввод т сернистый газ или сульфит при мольном отношении H2SO4: 502 0,001-2,0.In order to intensify the process and ensure its safety in the proposed method, sulfur dioxide gas or sulphite is introduced into the mouse being cleaned with the x-containing solution at a molar ratio of H2SO4: 502 0.001-2.0.
При восстановлении сернистого газа электроотрицательным металлом образуетс в зависимости от соотношени ЗОг и H2SO4 в растворе гидросерниста кислота или сероводород . Гидросерниста кислота образуетс при мольном соотношении H2S04: ,001 : 0,5, при увеличении отношени H2SO4: SO2 от 1,2 - 1,5 до 2 образуетс сероводород.When sulfur dioxide is reduced by an electronegative metal, it is formed depending on the ratio of SO 3 and H 2 SO 4 in a hydrosulfuric acid or hydrogen sulfide solution. Hydrocarbonate acid is formed at a molar ratio of H2S04:, 001: 0.5, with an increase in the ratio of H2SO4: SO2 from 1.2-1.5 to 2, hydrogen sulfide is formed.
Гидросерниста кислота осаждает мышь к в элементарном виде, сероводород - в виде сульфида.Hydrocarbonic acid precipitates the mouse in an elemental form, hydrogen sulfide - in the form of sulfide.
В промежуточной области (H2SO4: SO2 0,5 - 1,2 моль/моль) мышь к осаждаетс и в виде металла и в виде сульфида.In the intermediate region (H2SO4: SO2 0.5-1.2 mol / mol) the mouse is precipitated both in the form of metal and in the form of sulfide.
Способ обеспечивает очистку растворов от мышь ка до остаточного содержани 0,2 - 0,3 мг/л при исходном содержании мышь ка 5-20 г/л.The method provides for cleaning solutions from the mouse to a residual content of 0.2–0.3 mg / l with the initial content of the mouse 5–20 g / l.
Пример 1. В мышь ксодержащий раствор 4 г/л As и 20 г/л H2SO4 ввод т железо в количестве 5 г/л. As и сернистый газ в количестве SO2/AS - 8,7 моль/.моль. При этом осаждают мышь к в виде металла. Остаточное содержание As в растворе 0,3 мг/л.Example 1. In a mouse x-containing solution of 4 g / l As and 20 g / l H2SO4, iron is introduced in an amount of 5 g / l. As and sulfur dioxide in the amount of SO2 / AS - 8.7 mol /. Mol. When this is precipitated, the mouse is in the form of metal. The residual content of As in the solution is 0.3 mg / l.
Пример 2. В мышь ксодерл ащий раствор 4 г/л As и 60 г/л H2SO4 ввод т железо и сернистый газ концентрации 20 г/л. При этом осаждают мышь к в виде сульфида. Остаточное содержание As в растворе 1 мг/л.Example 2. In a mouse x-dermal solution of 4 g / l As and 60 g / l H 2 SO 4, iron and sulfur dioxide are introduced at a concentration of 20 g / l. In this case, the mouse is precipitated in the form of sulfide. The residual content of As in the solution is 1 mg / l.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1670500A SU528266A1 (en) | 1971-06-21 | 1971-06-21 | The method of sewage treatment and production sulphate solutions from the mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1670500A SU528266A1 (en) | 1971-06-21 | 1971-06-21 | The method of sewage treatment and production sulphate solutions from the mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU528266A1 true SU528266A1 (en) | 1976-09-15 |
Family
ID=20479419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1670500A SU528266A1 (en) | 1971-06-21 | 1971-06-21 | The method of sewage treatment and production sulphate solutions from the mill |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU528266A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110255689A (en) * | 2019-06-14 | 2019-09-20 | 中南大学 | A kind of sulphur, inferior sulfate radical hydro-thermal disproportionation vulcanization Arsenic fixation method |
-
1971
- 1971-06-21 SU SU1670500A patent/SU528266A1/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110255689A (en) * | 2019-06-14 | 2019-09-20 | 中南大学 | A kind of sulphur, inferior sulfate radical hydro-thermal disproportionation vulcanization Arsenic fixation method |
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