PL436860A1 - Method for obtaining phosphate salts from treated municipal wastewater and a system for obtaining a concentrate with a high concentration of calcium and magnesium ions from treated municipal wastewater - Google Patents
Method for obtaining phosphate salts from treated municipal wastewater and a system for obtaining a concentrate with a high concentration of calcium and magnesium ions from treated municipal wastewaterInfo
- Publication number
- PL436860A1 PL436860A1 PL436860A PL43686021A PL436860A1 PL 436860 A1 PL436860 A1 PL 436860A1 PL 436860 A PL436860 A PL 436860A PL 43686021 A PL43686021 A PL 43686021A PL 436860 A1 PL436860 A1 PL 436860A1
- Authority
- PL
- Poland
- Prior art keywords
- calcium
- concentrate
- sup
- obtaining
- municipal wastewater
- Prior art date
Links
- 239000012141 concentrate Substances 0.000 title abstract 6
- 238000000034 method Methods 0.000 title abstract 5
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 title abstract 3
- 239000010841 municipal wastewater Substances 0.000 title abstract 3
- 239000011575 calcium Substances 0.000 title abstract 2
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 title 1
- 229910001424 calcium ion Inorganic materials 0.000 title 1
- 229910001425 magnesium ion Inorganic materials 0.000 title 1
- 125000002467 phosphate group Chemical class [H]OP(=O)(O[H])O[*] 0.000 title 1
- ZFXVRMSLJDYJCH-UHFFFAOYSA-N calcium magnesium Chemical compound [Mg].[Ca] ZFXVRMSLJDYJCH-UHFFFAOYSA-N 0.000 abstract 3
- 238000005342 ion exchange Methods 0.000 abstract 2
- 239000011777 magnesium Substances 0.000 abstract 2
- 238000001471 micro-filtration Methods 0.000 abstract 2
- 238000001728 nano-filtration Methods 0.000 abstract 2
- 238000002360 preparation method Methods 0.000 abstract 2
- 238000000108 ultra-filtration Methods 0.000 abstract 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 abstract 1
- 150000001450 anions Chemical class 0.000 abstract 1
- 229910052791 calcium Inorganic materials 0.000 abstract 1
- 239000001506 calcium phosphate Substances 0.000 abstract 1
- 229910000389 calcium phosphate Inorganic materials 0.000 abstract 1
- 235000011010 calcium phosphates Nutrition 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 239000000706 filtrate Substances 0.000 abstract 1
- 229910052749 magnesium Inorganic materials 0.000 abstract 1
- GVALZJMUIHGIMD-UHFFFAOYSA-H magnesium phosphate Chemical class [Mg+2].[Mg+2].[Mg+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O GVALZJMUIHGIMD-UHFFFAOYSA-H 0.000 abstract 1
- 150000002894 organic compounds Chemical class 0.000 abstract 1
- 239000012466 permeate Substances 0.000 abstract 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 abstract 1
- 239000008213 purified water Substances 0.000 abstract 1
- 239000010865 sewage Substances 0.000 abstract 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 abstract 1
- 239000000725 suspension Substances 0.000 abstract 1
- 239000002351 wastewater Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/26—Phosphates
- C01B25/32—Phosphates of magnesium, calcium, strontium, or barium
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/26—Phosphates
- C01B25/32—Phosphates of magnesium, calcium, strontium, or barium
- C01B25/327—After-treatment
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/26—Phosphates
- C01B25/32—Phosphates of magnesium, calcium, strontium, or barium
- C01B25/34—Magnesium phosphates
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Wynalazek dotyczy sposobu otrzymywania soli fosforanowych wapnia i/lub magnezu z koncentratu wapniowo-magnezowego otrzymanego z oczyszczonych wstępnie ścieków komunalnych oraz układu do otrzymywania koncentratu wapniowo-magnezowego ze ścieków. Sposób polega na tym, że w pierwszym etapie przeprowadza się proces mikrofiltracji lub ultrafiltracji przy ciśnieniu co najmniej 2 bary podczas którego oczyszcza się z zawiesiny ogólnej i częściowo ze związków organicznych ścieki oczyszczone, a następnie uzyskany permeat z mikrofiltracji lub ultrafiltracji zagęszcza się w procesie nanofiltracji w cyrkulacji przy ciśnieniu co najmniej 6 barów do produkcji koncentratu pierwszego i wody oczyszczonej. Koncentrat pierwszy oczyszcza się ze związków humusowych oraz siarczanów w procesie wymiany jonowej na anionicie, po czym filtrat po wymianie jonowej zagęszcza się w dodatkowym etapie nanofiltracji w cyrkulacji przy ciśnieniu co najmniej 6 barów otrzymując koncentrat wapniowo-magnezowy, z którego wytrąca się sole fosforanowe wapnia i/lub magnezu dodając zewnętrzne źródło jonów Mg<sup>2+</sup> i NH<sub>4</sub><sup>+</sup> i PO<sub>4</sub><sup>3-</sup>.The invention relates to a method for the preparation of calcium and / or magnesium phosphate salts from a calcium-magnesium concentrate obtained from pre-treated municipal wastewater and to a system for the preparation of calcium-magnesium concentrate from wastewater. The method consists in the fact that in the first stage a microfiltration or ultrafiltration process is carried out at a pressure of at least 2 bar, during which the treated sewage is purified from the total suspension and partially from organic compounds, and then the obtained microfiltration or ultrafiltration permeate is concentrated in the nanofiltration process in circulation at a pressure of at least 6 bar to produce primary concentrate and purified water. The concentrate is first purified from humic compounds and sulphates in the process of ion exchange on anion exchanger, then the filtrate, after ion exchange, is concentrated in an additional stage of nanofiltration in circulation at a pressure of at least 6 bar, obtaining a calcium-magnesium concentrate from which calcium and phosphate salts are precipitated. / or magnesium by adding an external source of Mg <sup> 2+ </sup> and NH <sub> 4 </sub> <sup> + </sup> and PO <sub> 4 </sub> <sup> 3- </sup>.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL436860A PL247053B1 (en) | 2021-02-01 | 2021-02-01 | Method for obtaining phosphate salts from purified municipal sewage and a system for obtaining a concentrate with a high concentration of calcium and magnesium ions from purified municipal sewage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL436860A PL247053B1 (en) | 2021-02-01 | 2021-02-01 | Method for obtaining phosphate salts from purified municipal sewage and a system for obtaining a concentrate with a high concentration of calcium and magnesium ions from purified municipal sewage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PL436860A1 true PL436860A1 (en) | 2022-08-08 |
| PL247053B1 PL247053B1 (en) | 2025-05-05 |
Family
ID=83721792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL436860A PL247053B1 (en) | 2021-02-01 | 2021-02-01 | Method for obtaining phosphate salts from purified municipal sewage and a system for obtaining a concentrate with a high concentration of calcium and magnesium ions from purified municipal sewage |
Country Status (1)
| Country | Link |
|---|---|
| PL (1) | PL247053B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL450649A1 (en) * | 2024-12-19 | 2026-06-22 | Politechnika Wrocławska | Method for producing a calcium-magnesium concentrate from treated municipal wastewater, and a system for producing a calcium-magnesium concentrate from treated municipal wastewater |
-
2021
- 2021-02-01 PL PL436860A patent/PL247053B1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL450649A1 (en) * | 2024-12-19 | 2026-06-22 | Politechnika Wrocławska | Method for producing a calcium-magnesium concentrate from treated municipal wastewater, and a system for producing a calcium-magnesium concentrate from treated municipal wastewater |
Also Published As
| Publication number | Publication date |
|---|---|
| PL247053B1 (en) | 2025-05-05 |
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