CA2988187C - Procede de traitement de l'eau touchee par l'exploitation miniere - Google Patents
Procede de traitement de l'eau touchee par l'exploitation miniere Download PDFInfo
- Publication number
- CA2988187C CA2988187C CA2988187A CA2988187A CA2988187C CA 2988187 C CA2988187 C CA 2988187C CA 2988187 A CA2988187 A CA 2988187A CA 2988187 A CA2988187 A CA 2988187A CA 2988187 C CA2988187 C CA 2988187C
- Authority
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- Canada
- Prior art keywords
- process according
- aop
- miw
- ozone
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000000034 method Methods 0.000 title claims abstract description 115
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 105
- 229910001868 water Inorganic materials 0.000 title claims abstract description 105
- 230000008569 process Effects 0.000 title claims abstract description 85
- 238000011282 treatment Methods 0.000 title claims description 59
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 claims abstract description 153
- 239000011669 selenium Substances 0.000 claims abstract description 146
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 140
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 124
- 229910052711 selenium Inorganic materials 0.000 claims abstract description 123
- 238000009303 advanced oxidation process reaction Methods 0.000 claims abstract description 106
- 239000007800 oxidant agent Substances 0.000 claims abstract description 26
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims description 36
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 28
- 238000010791 quenching Methods 0.000 claims description 28
- 239000000126 substance Substances 0.000 claims description 22
- 235000010265 sodium sulphite Nutrition 0.000 claims description 19
- 230000000171 quenching effect Effects 0.000 claims description 15
- 238000005065 mining Methods 0.000 claims description 11
- 239000003638 chemical reducing agent Substances 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 8
- 230000031018 biological processes and functions Effects 0.000 claims description 6
- 239000003245 coal Substances 0.000 claims description 5
- 239000011435 rock Substances 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000011701 zinc Substances 0.000 claims description 4
- 229910052725 zinc Inorganic materials 0.000 claims description 4
- 238000001311 chemical methods and process Methods 0.000 claims 2
- 239000003673 groundwater Substances 0.000 claims 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 31
- 239000001301 oxygen Substances 0.000 description 31
- 229910052760 oxygen Inorganic materials 0.000 description 31
- 238000012360 testing method Methods 0.000 description 29
- 238000003556 assay Methods 0.000 description 23
- 239000007789 gas Substances 0.000 description 21
- 238000004458 analytical method Methods 0.000 description 18
- 238000007254 oxidation reaction Methods 0.000 description 15
- 230000003647 oxidation Effects 0.000 description 13
- 238000007792 addition Methods 0.000 description 12
- 239000000470 constituent Substances 0.000 description 10
- 229910052799 carbon Inorganic materials 0.000 description 8
- 239000003153 chemical reaction reagent Substances 0.000 description 8
- 238000001514 detection method Methods 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- MCAHWIHFGHIESP-UHFFFAOYSA-L selenite(2-) Chemical compound [O-][Se]([O-])=O MCAHWIHFGHIESP-UHFFFAOYSA-L 0.000 description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical class Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- RJFAYQIBOAGBLC-BYPYZUCNSA-N Selenium-L-methionine Chemical compound C[Se]CC[C@H](N)C(O)=O RJFAYQIBOAGBLC-BYPYZUCNSA-N 0.000 description 6
- RJFAYQIBOAGBLC-UHFFFAOYSA-N Selenomethionine Natural products C[Se]CCC(N)C(O)=O RJFAYQIBOAGBLC-UHFFFAOYSA-N 0.000 description 6
- 229910001882 dioxygen Inorganic materials 0.000 description 6
- 229940082569 selenite Drugs 0.000 description 6
- 238000012546 transfer Methods 0.000 description 6
- 238000011020 pilot scale process Methods 0.000 description 5
- 125000001824 selenocyanato group Chemical group *[Se]C#N 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 4
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 4
- 238000011021 bench scale process Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- -1 selenate ions Chemical class 0.000 description 4
- 239000010878 waste rock Substances 0.000 description 4
- 239000003643 water by type Substances 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 235000011167 hydrochloric acid Nutrition 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- 239000012286 potassium permanganate Substances 0.000 description 3
- 229940005981 selenite ion Drugs 0.000 description 3
- CRDYSYOERSZTHZ-UHFFFAOYSA-M selenocyanate Chemical compound [Se-]C#N CRDYSYOERSZTHZ-UHFFFAOYSA-M 0.000 description 3
- 229960002718 selenomethionine Drugs 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 2
- 238000013019 agitation Methods 0.000 description 2
- 230000033558 biomineral tissue development Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000029087 digestion Effects 0.000 description 2
- VLXBWPOEOIIREY-UHFFFAOYSA-N dimethyl diselenide Chemical compound C[Se][Se]C VLXBWPOEOIIREY-UHFFFAOYSA-N 0.000 description 2
- RVIXKDRPFPUUOO-UHFFFAOYSA-N dimethylselenide Chemical compound C[Se]C RVIXKDRPFPUUOO-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 2
- 150000002484 inorganic compounds Chemical class 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000004949 mass spectrometry Methods 0.000 description 2
- UEQANLFPOFICBH-UHFFFAOYSA-N methylseleninic acid Chemical compound C[Se](O)=O UEQANLFPOFICBH-UHFFFAOYSA-N 0.000 description 2
- OOYOEHGKYKMRJI-UHFFFAOYSA-N methylseleninylmethane Chemical compound C[Se](C)=O OOYOEHGKYKMRJI-UHFFFAOYSA-N 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- 229940006163 selenate ion Drugs 0.000 description 2
- 229940065287 selenium compound Drugs 0.000 description 2
- 150000003343 selenium compounds Chemical class 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 229910021653 sulphate ion Inorganic materials 0.000 description 2
- FDKWRPBBCBCIGA-REOHCLBHSA-N (2r)-2-azaniumyl-3-$l^{1}-selanylpropanoate Chemical compound [Se]C[C@H](N)C(O)=O FDKWRPBBCBCIGA-REOHCLBHSA-N 0.000 description 1
- QGZKDVFQNNGYKY-OUBTZVSYSA-N Ammonia-15N Chemical compound [15NH3] QGZKDVFQNNGYKY-OUBTZVSYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- FDKWRPBBCBCIGA-UWTATZPHSA-N D-Selenocysteine Natural products [Se]C[C@@H](N)C(O)=O FDKWRPBBCBCIGA-UWTATZPHSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- PJCOJFXCGSGBHE-UHFFFAOYSA-N O[Se](O)(=O)=O.[SeH2] Chemical compound O[Se](O)(=O)=O.[SeH2] PJCOJFXCGSGBHE-UHFFFAOYSA-N 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- OGIIWTRTOXDWEH-UHFFFAOYSA-N [O].[O-][O+]=O Chemical compound [O].[O-][O+]=O OGIIWTRTOXDWEH-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000012801 analytical assay Methods 0.000 description 1
- 238000010420 art technique Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 235000010216 calcium carbonate Nutrition 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 238000011067 equilibration Methods 0.000 description 1
- ARYKTOJCZLAFIS-UHFFFAOYSA-N hydrogen peroxide;ozone Chemical compound OO.[O-][O+]=O ARYKTOJCZLAFIS-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009616 inductively coupled plasma Methods 0.000 description 1
- 238000011221 initial treatment Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 1
- BHZRJJOHZFYXTO-UHFFFAOYSA-L potassium sulfite Chemical compound [K+].[K+].[O-]S([O-])=O BHZRJJOHZFYXTO-UHFFFAOYSA-L 0.000 description 1
- 235000019252 potassium sulphite Nutrition 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000005464 sample preparation method Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 150000003342 selenium Chemical class 0.000 description 1
- ZKZBPNGNEQAJSX-UHFFFAOYSA-N selenocysteine Natural products [SeH]CC(N)C(O)=O ZKZBPNGNEQAJSX-UHFFFAOYSA-N 0.000 description 1
- 229940055619 selenocysteine Drugs 0.000 description 1
- 235000016491 selenocysteine Nutrition 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 238000002798 spectrophotometry method Methods 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 150000004764 thiosulfuric acid derivatives Chemical class 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
- C02F1/70—Treatment of water, waste water, or sewage by reduction
-
- 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
- C02F2101/106—Selenium compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/023—Reactive oxygen species, singlet oxygen, OH radical
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/026—Fenton's reagent
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)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
Il est décrit un procédé de traitement des eaux de mine contaminée contenant au moins une espèce de sélénium réduite par un procédé doxydation avancé (POA) comprenant de lozone et de la lumière ultraviolette, ou bien de lozone et du peroxyde dhydrogène. Le procédé oxyde toute espèce de sélénium réduite en sélénate et produit ainsi de leau traitée par POA. Les oxydants résiduels sont éliminés de leau traitée par POA.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2988187A CA2988187C (fr) | 2017-12-07 | 2017-12-07 | Procede de traitement de l'eau touchee par l'exploitation miniere |
| PCT/CA2018/051421 WO2019109168A1 (fr) | 2017-12-07 | 2018-11-09 | Procédé pour le traitement des eaux de mine contaminée |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2988187A CA2988187C (fr) | 2017-12-07 | 2017-12-07 | Procede de traitement de l'eau touchee par l'exploitation miniere |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2988187A1 CA2988187A1 (fr) | 2019-06-07 |
| CA2988187C true CA2988187C (fr) | 2023-08-01 |
Family
ID=66700626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2988187A Active CA2988187C (fr) | 2017-12-07 | 2017-12-07 | Procede de traitement de l'eau touchee par l'exploitation miniere |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2988187C (fr) |
-
2017
- 2017-12-07 CA CA2988187A patent/CA2988187C/fr active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CA2988187A1 (fr) | 2019-06-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |
Effective date: 20210104 |
|
| EEER | Examination request |
Effective date: 20210104 |
|
| EEER | Examination request |
Effective date: 20210104 |
|
| EEER | Examination request |
Effective date: 20210104 |
|
| EEER | Examination request |
Effective date: 20210104 |
|
| EEER | Examination request |
Effective date: 20210104 |
|
| EEER | Examination request |
Effective date: 20210104 |
|
| EEER | Examination request |
Effective date: 20210104 |
|
| EEER | Examination request |
Effective date: 20210104 |
|
| EEER | Examination request |
Effective date: 20210104 |
|
| EEER | Examination request |
Effective date: 20210104 |