BR112016018944B8 - Método para remover sulfato de água residual - Google Patents
Método para remover sulfato de água residualInfo
- Publication number
- BR112016018944B8 BR112016018944B8 BR112016018944A BR112016018944A BR112016018944B8 BR 112016018944 B8 BR112016018944 B8 BR 112016018944B8 BR 112016018944 A BR112016018944 A BR 112016018944A BR 112016018944 A BR112016018944 A BR 112016018944A BR 112016018944 B8 BR112016018944 B8 BR 112016018944B8
- Authority
- BR
- Brazil
- Prior art keywords
- solution
- calcium
- waste water
- naoh
- contacted
- Prior art date
Links
Classifications
-
- 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
-
- 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
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/18—Carbonates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/46—Sulfates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/78—Compounds containing aluminium and two or more other elements, with the exception of oxygen and hydrogen
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
- C01F7/04—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
-
- 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
- C02F1/24—Treatment of water, waste water, or sewage by flotation
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- 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
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
-
- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/123—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using belt or band filters
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
-
- 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
- C02F2001/007—Processes including a sedimentation step
-
- 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
- C02F2101/101—Sulfur 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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/02—Temperature
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/44—Time
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
- C02F2301/046—Recirculation with an external loop
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- Geology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Removal Of Specific Substances (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
MÉTODO PARA REMOVER SULFATO DE ÁGUA RESIDUAL. A invenção refere-se a um método e dispositivo para remoção de sulfato, cálcio e outros metais solúveis de água residual, em que NaOH e Al(OH)3 são colocados em contato para preparar aluminato de sódio, a uma temperatura de pelo menos 60°C e com uma proporção molar de NaOH:Al(OH)3 de pelo menos 1,0, em que a água residual é contatada com o aluminato de sódio obtido e com um primeiro composto de cálcio para produção de uma lama contendo etringita, em que uma separação do tipo sólido-líquido é executada com a lama contendo etringita para separar os sólidos do líquido, desse modo, produzindo uma primeira solução, a primeira solução sendo então contatada com um agente de carbonatação para neutralizar a primeira solução e precipitar o cálcio contido na primeira solução na forma de carbonato de cálcio, e em que uma adicional separação do tipo sólido-líquido é realizada para separar o precipitado de carbonato de cálcio da primeira solução, a fim de se obter uma água tendo um reduzido teor de sulfato, cálcio e outros metais solúveis.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20145183A FI127809B (en) | 2014-02-26 | 2014-02-26 | Method for removing sulfate from waste water |
| FI20145183 | 2014-02-26 | ||
| PCT/FI2015/050108 WO2015128541A1 (en) | 2014-02-26 | 2015-02-25 | Method of removing sulphate from waste water |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| BR112016018944A2 BR112016018944A2 (pt) | 2017-08-15 |
| BR112016018944B1 BR112016018944B1 (pt) | 2021-10-26 |
| BR112016018944B8 true BR112016018944B8 (pt) | 2023-02-07 |
Family
ID=52633307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR112016018944A BR112016018944B8 (pt) | 2014-02-26 | 2015-02-25 | Método para remover sulfato de água residual |
Country Status (12)
| Country | Link |
|---|---|
| EP (1) | EP3110765B1 (pt) |
| CN (1) | CN106103360B (pt) |
| AR (1) | AR099573A1 (pt) |
| AU (1) | AU2015222009B2 (pt) |
| BR (1) | BR112016018944B8 (pt) |
| CA (1) | CA2939399C (pt) |
| EA (1) | EA031572B1 (pt) |
| ES (1) | ES2711620T3 (pt) |
| FI (1) | FI127809B (pt) |
| PT (1) | PT3110765T (pt) |
| WO (1) | WO2015128541A1 (pt) |
| ZA (1) | ZA201605976B (pt) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180251390A1 (en) * | 2017-02-17 | 2018-09-06 | James Hardie Technology Limited | Systems and methods for treating cementitious article forming process water |
| CN107416881A (zh) * | 2017-07-26 | 2017-12-01 | 象州县科学技术情报研究所 | 硫酸钡制备过程中钙铝副产品生成工艺 |
| CA3076461A1 (en) | 2017-09-20 | 2019-03-28 | Smr Technologies Limited | New process for the treatment of high sulphate waters |
| CA3076455A1 (en) | 2017-09-20 | 2019-03-28 | Smr Technologies Limited | Suitable reagent for the treatment of high-sulphate waters |
| US10358355B2 (en) * | 2017-12-14 | 2019-07-23 | American Air Liquide, Inc. | Aluminum hydroxide coagulant recovery from water/wastewater treatment sludge |
| GR1009539B (el) * | 2018-04-03 | 2019-06-03 | Νικολαος Κωνσταντινου Νταϊλιανης | Μεθοδος και απλος εξοπλισμος για την ανακυκλωση των αλκαλικων αποβλητων των βιομηχανιων διελασης αλουμινιου προς παραγωγη χρησιμων κροκιδωτικων |
| CA3224007A1 (en) | 2018-06-13 | 2019-12-19 | The Water Company, Llc | Controlled removal of ions from aqueous fluid |
| CN111138000A (zh) * | 2018-11-06 | 2020-05-12 | 唐山紫天化工防腐有限公司 | 铝材挤压模具洗模废水回收利用零排放处理的工艺方法 |
| WO2020227411A1 (en) * | 2019-05-07 | 2020-11-12 | Heritage Research Group | Methods of reducing calcite formation and solubilized metals from aqueous effluent streams |
| SE545642C2 (en) * | 2020-07-16 | 2023-11-21 | Axolot Solutions Holding Ab | A method and a system for removal of sulfate from wastewater by electrocoagulation |
| CN112939314B (zh) * | 2021-02-02 | 2022-10-25 | 江西天新药业股份有限公司 | 叶酸酸提水析母液的处理方法、叶酸精制的方法 |
| CN114735723B (zh) * | 2021-06-22 | 2024-05-31 | 华融化学股份有限公司 | 一种钾碱粗盐水精制工艺 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1620332A (en) * | 1925-05-29 | 1927-03-08 | Aluminate Sales Corp | Process of treating liquids |
| US2018607A (en) * | 1934-11-10 | 1935-10-22 | Pennsylvania Salt Mfg Co | Process of making sodium aluminate |
| US2159843A (en) * | 1937-08-18 | 1939-05-23 | Pennsylvania Salt Mfg Co | Process of making sodium aluminate |
| US2345134A (en) * | 1939-11-27 | 1944-03-28 | Nat Aluminate Corp | Sodium aluminate product and process of producing the same |
| US4164551A (en) * | 1977-12-19 | 1979-08-14 | W. R. Grace & Co. | Preparation of zeolite |
| SU722845A1 (ru) * | 1978-10-18 | 1980-03-25 | Предприятие П/Я Р-6711 | Способ получени алюмината натри |
| DE3709950C2 (de) * | 1987-03-26 | 1996-06-05 | Walhalla Kalk Entwicklungs Und | Verfahren zur Behandlung sulfathaltigen Abwassers |
| GB9711451D0 (en) * | 1997-06-03 | 1997-07-30 | Ramsay James I | A process for the treatment of effluent streams |
| JP4252373B2 (ja) * | 2003-06-20 | 2009-04-08 | 電気化学工業株式会社 | アルミン酸ソーダの製造方法 |
| CN102502733B (zh) * | 2011-10-26 | 2013-06-12 | 中国铝业股份有限公司 | 一种高浓度碱液常压处理三水铝石矿的方法 |
| FI126285B (en) * | 2012-08-27 | 2016-09-15 | Outotec Finland Oy | Process for removing sulfate, calcium and / or other soluble metals from wastewater |
-
2014
- 2014-02-26 FI FI20145183A patent/FI127809B/en active IP Right Grant
-
2015
- 2015-02-25 BR BR112016018944A patent/BR112016018944B8/pt active IP Right Grant
- 2015-02-25 AR ARP150100563A patent/AR099573A1/es active IP Right Grant
- 2015-02-25 ES ES15708859T patent/ES2711620T3/es active Active
- 2015-02-25 EA EA201691433A patent/EA031572B1/ru not_active IP Right Cessation
- 2015-02-25 AU AU2015222009A patent/AU2015222009B2/en active Active
- 2015-02-25 EP EP15708859.2A patent/EP3110765B1/en active Active
- 2015-02-25 PT PT15708859T patent/PT3110765T/pt unknown
- 2015-02-25 WO PCT/FI2015/050108 patent/WO2015128541A1/en active Application Filing
- 2015-02-25 CN CN201580010339.2A patent/CN106103360B/zh active Active
- 2015-02-25 CA CA2939399A patent/CA2939399C/en active Active
-
2016
- 2016-08-29 ZA ZA2016/05976A patent/ZA201605976B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EA031572B1 (ru) | 2019-01-31 |
| AU2015222009B2 (en) | 2018-03-01 |
| PT3110765T (pt) | 2019-02-27 |
| CA2939399C (en) | 2022-10-25 |
| BR112016018944B1 (pt) | 2021-10-26 |
| CA2939399A1 (en) | 2015-09-03 |
| BR112016018944A2 (pt) | 2017-08-15 |
| CN106103360A (zh) | 2016-11-09 |
| AU2015222009A1 (en) | 2016-09-01 |
| ZA201605976B (en) | 2020-01-29 |
| WO2015128541A1 (en) | 2015-09-03 |
| EA201691433A1 (ru) | 2017-02-28 |
| EP3110765A1 (en) | 2017-01-04 |
| FI20145183A (fi) | 2015-08-27 |
| AR099573A1 (es) | 2016-08-03 |
| ES2711620T3 (es) | 2019-05-06 |
| CN106103360B (zh) | 2021-03-12 |
| FI127809B (en) | 2019-03-15 |
| EP3110765B1 (en) | 2018-11-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B06U | Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette] | ||
| B350 | Update of information on the portal [chapter 15.35 patent gazette] | ||
| B350 | Update of information on the portal [chapter 15.35 patent gazette] | ||
| B09A | Decision: intention to grant [chapter 9.1 patent gazette] | ||
| B16A | Patent or certificate of addition of invention granted [chapter 16.1 patent gazette] |
Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 25/02/2015, OBSERVADAS AS CONDICOES LEGAIS. |
|
| B25A | Requested transfer of rights approved |
Owner name: METSO MINERALS OY (FI) |
|
| B25D | Requested change of name of applicant approved |
Owner name: METSO OUTOTEC FINLAND OY (FI) |