CN1077454C - Technology of activating carbon-fluorine apatite to remove toxic metal ions from waste water - Google Patents
Technology of activating carbon-fluorine apatite to remove toxic metal ions from waste water Download PDFInfo
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- CN1077454C CN1077454C CN97109130A CN97109130A CN1077454C CN 1077454 C CN1077454 C CN 1077454C CN 97109130 A CN97109130 A CN 97109130A CN 97109130 A CN97109130 A CN 97109130A CN 1077454 C CN1077454 C CN 1077454C
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- waste water
- toxic metal
- francolite
- activated carbon
- metal ion
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Abstract
The present invention relates to a francolite activating technique for removing toxic metal ions in waste water, which belongs to the field of mineral processing engineering science. After natural francolite is activated by surface modifying agents, natural environmental protecting material which can effectively remove the toxic metal ions in the waste water is obtained; the removal effect of lead ions in solution corresponding to synthesized hydroxyapatite. The present invention has the characteristics of wide raw material source, simple processing process and low cost; agents can be discarded in the open air and does not cause secondary pollution.
Description
The present invention relates to a kind of francolite that can be used for removing the activated processing of waste water toxic metal ion, belong to Mineral Processing Engineering and environmental technology field.
In recent years, people such as Suzuki find that the synthetic hydroxyapatite can effectively remove the toxic metal ions such as lead in the aqueous solution, and its mechanism is relevant with the ion exchange between lattice negatively charged ion one toxic ion.We studies show that, the content that the contained isomorph of this removal ability and hydroxyapatite replaces carbonate is proportionate.
The objective of the invention is based on above-mentioned thinking, francolite is carried out activation treatment, it is become to remove the toxic metal ionic novel environment friendly material that comprises lead in the waste water, not only preparation technology is simple for it, cost of material is cheap and be that the source is extensive, and performance is suitable with hydroxyapatite, is expected to substitute higher relatively the showing of price material.
Technical scheme of the present invention is: it is prepared from by following raw material and method: with the francolite after the fragmentation is raw material, mixture solution with strong acid or strong acid is a surface active properties-correcting agent, with suitable solid-to-liquid ratio the effect of for some time is also carried out in their mixing at normal temperatures and pressures, through washing, filtration, oven dry, obtain the francolite of surface active then.
In the such scheme, francolite can be selected cheap natural carbon fluorapatite for use; Strong acid is hydrochloric acid, or sulfuric acid, or the mixture of sulfuric acid, hydrochloric acid, nitric acid, and concentration is 1-6M, and be generally 4-30 minutes action time.
The francolite of surface active of the present invention carries out lead ion removal experiment to the plumbiferous aqueous solution, finds that activation francolite removal afterwards toxic metal ionic ability obviously increases, and has approached the synthetic hydroxyapatite.In addition, activated carbon fluorapatite and leaded solution effects are after XRD determining, and its result shows that major part has been converted into aluminium phosphatic rock, the aqueous solution effect of it and pH=5.0 16 hours, the Pb of stripping
2+Have only 3.5ppm, unlikelyly so can discard cause secondary pollution.The present invention has that manufacture craft is simple, cost of material is cheap and wide material sources, the characteristics that product performance are good.Surface active francolite of the present invention can be used for removing and comprises toxic metal ions such as Pb, Fe, Zn, U, Cd, Sr, Ag, Ni, Co, V, Ti, Sc, Hg, Y lanthanide ion and comprehensive the recovery in the aqueous solution.
Below introduce embodiments of the invention.
Embodiment 1: 100g left and right sides granularity (is contained P for-200 purpose francolites
2O
3=36.1%) with 50ml concentration be the hydrochloric acid soln effect 4 minutes of 1-6M, washing, filter, oven dry, obtain the activatory francolite.Is that the lead solution that contains of 1000mg/L is handled with it to concentration, and at PH=5.0, temperature is 20 ℃, and under the condition of 2 hours static action time, plumbous removal amount can reach more than the 200mg/g.
Embodiment 2: with 100g left and right sides granularity is the sulphuric acid soln effect 10 minutes of 1-6M for-200 purpose francolites and 50ml concentration, washing, filtration, oven dry, obtain the activatory francolite, at normal temperature and pressure and PH=5.0, under the condition of 2 hours static action time, to concentration is that the aluminum solutions that contains of 5000mg/L is handled, and plumbous removal amount can reach 800mg/g.
Claims (5)
1, a kind of activated carbon fluorapatite that is used to remove waste water toxic metal ion, it is characterized in that with the francolite after the fragmentation be raw material, mixture solution with strong acid or strong acid is a surface active properties-correcting agent, with suitable solid-to-liquid ratio the effect of for some time is also carried out in their mixing at normal temperatures and pressures, through washing, filtration, oven dry, obtain the francolite of surface active then.
2,, it is characterized in that described francolite is the natural carbon fluorapatite by the described activated carbon fluorapatite that is used to remove waste water toxic metal ion of claim 1.
3, by claim 1 or the 2 described activated carbon fluorapatites that are used to remove waste water toxic metal ion, it is characterized in that described strong acid is hydrochloric acid, or sulfuric acid, or the mixture of sulfuric acid, hydrochloric acid, nitric acid, concentration is 1-6M.
4,, it is characterized in that the francolite granularity after the fragmentation is-200 orders by claim 1 or the 2 described activated carbon fluorapatites that are used to remove waste water toxic metal ion.
5, by claim 1 or the 2 described activated carbon fluorapatites that are used to remove waste water toxic metal ion, it is characterized in that be generally 4-30 minute the action time of francolite and strong acid solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97109130A CN1077454C (en) | 1997-06-06 | 1997-06-06 | Technology of activating carbon-fluorine apatite to remove toxic metal ions from waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97109130A CN1077454C (en) | 1997-06-06 | 1997-06-06 | Technology of activating carbon-fluorine apatite to remove toxic metal ions from waste water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1201719A CN1201719A (en) | 1998-12-16 |
| CN1077454C true CN1077454C (en) | 2002-01-09 |
Family
ID=5170945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97109130A Expired - Fee Related CN1077454C (en) | 1997-06-06 | 1997-06-06 | Technology of activating carbon-fluorine apatite to remove toxic metal ions from waste water |
Country Status (1)
| Country | Link |
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| CN (1) | CN1077454C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108083509B (en) * | 2017-12-28 | 2020-08-25 | 湖州师范学院 | Adsorption column type stainless steel pickling waste liquid treatment and recovery method |
| CN112093788B (en) * | 2020-09-06 | 2023-04-07 | 桂林理工大学 | Preparation method and application of cadmium-calcium-fluorapatite solid solution |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU504746A1 (en) * | 1973-08-24 | 1976-02-28 | Воскресенский Ордена Ленина И Ордена Октябрьской Революции Химический Комбинат Им.В.В.Куйбышева | The method of obtaining granulated double superphosphate |
| SU1068396A1 (en) * | 1980-08-01 | 1984-01-23 | Научно-Исследовательский Отдел Ленинградского Государственного Научно-Исследовательского И Проектного Института Основной Химической Промышленности | Process for purifying phosphorus-containing effluents |
| SU1288156A1 (en) * | 1985-01-07 | 1987-02-07 | Предприятие П/Я В-8830 | Method of producing phosphoric acid |
| JPS62260708A (en) * | 1986-04-30 | 1987-11-13 | Ebara Infilco Co Ltd | Production of high purity hydroxyapatite |
-
1997
- 1997-06-06 CN CN97109130A patent/CN1077454C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU504746A1 (en) * | 1973-08-24 | 1976-02-28 | Воскресенский Ордена Ленина И Ордена Октябрьской Революции Химический Комбинат Им.В.В.Куйбышева | The method of obtaining granulated double superphosphate |
| SU1068396A1 (en) * | 1980-08-01 | 1984-01-23 | Научно-Исследовательский Отдел Ленинградского Государственного Научно-Исследовательского И Проектного Института Основной Химической Промышленности | Process for purifying phosphorus-containing effluents |
| SU1288156A1 (en) * | 1985-01-07 | 1987-02-07 | Предприятие П/Я В-8830 | Method of producing phosphoric acid |
| JPS62260708A (en) * | 1986-04-30 | 1987-11-13 | Ebara Infilco Co Ltd | Production of high purity hydroxyapatite |
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| Publication number | Publication date |
|---|---|
| CN1201719A (en) | 1998-12-16 |
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