WO2012042282A1 - A method for the synthesis of tetravalent manganese feroxyhite for arsenic removal from water - Google Patents
A method for the synthesis of tetravalent manganese feroxyhite for arsenic removal from water Download PDFInfo
- Publication number
- WO2012042282A1 WO2012042282A1 PCT/GR2011/000042 GR2011000042W WO2012042282A1 WO 2012042282 A1 WO2012042282 A1 WO 2012042282A1 GR 2011000042 W GR2011000042 W GR 2011000042W WO 2012042282 A1 WO2012042282 A1 WO 2012042282A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lll
- manganese
- synthesis
- reactor
- adjusted
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
-
- 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
-
- 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
- C02F1/62—Heavy metal compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0222—Compounds of Mn, Re
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0225—Compounds of Fe, Ru, Os, Co, Rh, Ir, Ni, Pd, Pt
- B01J20/0229—Compounds of Fe
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28002—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their physical properties
- B01J20/28004—Sorbent size or size distribution, e.g. particle size
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
- B01J20/28016—Particle form
- B01J20/28019—Spherical, ellipsoidal or cylindrical
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
- B01J20/28016—Particle form
- B01J20/28021—Hollow particles, e.g. hollow spheres, microspheres or cenospheres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28054—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their surface properties or porosity
- B01J20/28057—Surface area, e.g. B.E.T specific surface area
- B01J20/28061—Surface area, e.g. B.E.T specific surface area being in the range 100-500 m2/g
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G45/00—Compounds of manganese
- C01G45/006—Compounds containing, besides manganese, two or more other elements, with the exception of oxygen or hydrogen
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/0018—Mixed oxides or hydroxides
- C01G49/0072—Mixed oxides or hydroxides containing manganese
-
- 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
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/50—Solid solutions
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
- C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
-
- 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
-
- 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
- C02F2101/103—Arsenic compounds
-
- 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
- C02F2101/20—Heavy metals or heavy metal compounds
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
Definitions
- the invention belongs to the field of chemical engineering and specifically in the water treatment technology by solid adsorbents.
- the solid ad- sorbents are used as filling media in a column bed for the removal by adsorption of heavy metals and especially arsenic from potable water and wastes.
- Arsenic (As) presence in potable water is one of the most important and most widespread pollution problems of water. Long-range consumption of water with increased arsenic concentrations is proved to be related to the risk of cardiovascular diseases, diabetes, as well as skin, lung, bladder cancer and as a consequence to the increase of mortality.
- the limit for total arsenic concentration in potable water was set to 10 g/L since 2001 in the U.S.A. and 1998 in the European Union.
- Arsenic appearance is mainly a problem occurring in underground water originating by natural sources (alluvial sediments and minerals washing) or anthropogenic activity.
- Arsenic removal processes are categorized in the relatively selective and the nonselective. Non-selective (nanofiltration, reverse osmosis) are not preferable due to their high cost and the alteration of water composition. Between the relatively selective methods of arsenic removal the co-precipitation with trivalent iron and the adsorption are the dominant ones. More specifically, although co-precipitation has a relatively small operation cost, it demands highly specialized operation supervision including the controlled addition of a trivalent iron chemical reagent as well as the thickening and the dewatering treatment of the produced sludge which contains the removed arsenic. For this reason, the use of consumable adsorbents is, in nowadays, the dominant trend, since it is by far the simplest arsenic removal method.
- the main arsenic adsorption processes concerns the use of activated alumina (Al 2 0 3 ) or titanium oxide (Ti0 2 ) or iron oxy-hydroxides column beds.
- activated alumina Al 2 0 3
- titanium oxide Ti0 2
- iron oxy-hydroxides column beds iron oxy-hydroxides column beds.
- the EP 2 168 677 describes the synthetic procedure and the application for As(lll) removal of a two-phase iron-manganese oxide.
- the development of this material takes place on-site on a carrier through the reaction of the iron sulfate (FeS0 4 ) or iron trichloride (FeCI 3 ) or manganese sulfate ( nS0 4 ) and potassium permanganate (KMn0 4 ).
- This patent refers to the synthesis of a mixture of two distinct materials: the iron hydroxide and Mn0 2 .
- This adsorbent succeeds to oxidize As(lll) by Mn0 2 and adsorbs the obtained As(V) by an iron hydroxide phase.
- the present invention concerns a method for the synthesis of an adsorbing material consisting of a single-phase tetravalent manganese feroxyhite [Fe ( -X) Mn x OOH, with 0.05 ⁇ x ⁇ 0.25], in which a percentage of 0.05 to 25 % of iron atoms has been substituted by Mn(IV) atoms, in a continuous flow reactor at weakly acidic conditions (pH 4- 7) and high redox (300-800 mV) followed by a thickening stage.
- a continuous flow stirred reactor of two-stages (1) and (2) is used (Drawing 1).
- the retention time in each stage is at least 30 min.
- the quantity of the produced product depends on the flow of iron and manganese reagents and Q 2 , with the condition of a retention-reaction time of at least 30 min for each of the two reactors.
- an aqueous solution of FeS0 or FeCI 2 with a concentration of 1-100 g/L and an aqueous solution of KMn0 4 or MnS0 4 or MnCI 2 or Mn(N0 3 ) 2 with a concentration of 1- 100 g/L are simultaneously added.
- the control of the Fe(ll) and Mn(VII) or Mn(ll) flow ratio as well as of the manganese solution concentration allows the production of ma- terials with a Mn(IV) percentage varying between 0.2 to 13 %wt and having a structure type Fe (1 . x) Mn x OOH, with 0.05>x>25.
- pH-value is adjusted at a constant value between 4 - 7, with an optimum pH range from 5.5 to 6, by the addition of a solution of one or more of the alkaline reagents NaOH, NaHC0 3 , Na 2 C0 3 , KOH, KHC0 3 , K 2 C0 3 .
- redox is adjusted at a constant value between 300 - 800 mV by the addition of a solution of one or more of the strong oxidant reagents KMn0 4 , CI0 2 , NaCI0 2 , (2KHSO 5 KHSO 4 K 2 SO 4 ), Na 2 S 2 0 8 , K 2 S 2 0 8 ), with an optimum redox range 600 to 650 mV in the optimum pH range.
- the produced mixture comes out from the reactor (2) outflow and is kept in a thickening tank (3) under slow stirring for 1- 48 hours, in order to achieve the tuning of grains geometry from irregular-shaped to hollow spherical.
- the mechanism which explains the hollow spherical geometry formation of the grains is the initial production of micro- porous material's spheres consisting of different-sized particles' aggregates, the consumption of the smaller particles situated close to the core by the larger ones in the grain shell and finally the formation of a porous spherical grain with a hollow (Drawing 2). This procedure is described as the Ostwald ageing mechanism and its yield and as a consequence the hollow diameter depends on the retention time in the thickening tank.
- the precipitate after the thickening is mechanically dewatered (4), formed in size 250- 2500 prn (5) and dried (6) (Drawing 1).
- the adsorbent material can be used for the adsorption of all arsenic forms from water, as well as of other heavy metals like vanadium, antimony, mercury, nickel and lead preferably in a column bed. Its use concerns potable water treatment units for domestic, industrial and municipal supply as well as industrial and municipal waste water treatment.
- the tetravalent manganese feroxyhite can be formed at the pH range 4-9. However, over pH 7 the adsorption capacity of As(lll) and As(V) is dramatically reduced.
- XRD X-ray diffraction
- the tetravalent manganese feroxyhite solid has a specific surface 100-300 m 2 /g and a grain size 250-2500 ⁇ Its maximum adsorption capacity (q max ) for water with pH 6-8 and an environment of 10 mM NaCI, is 47-87 pg As(lll)/mg and 62-117 pg As(V) /mg.
- NSF standard water composition is 88,8 mg/L Na + , 40 mg/L Ca 2+ , 12.7 mg/L Mg 2+ , 183 mg/L HC0 3 " , 50 mg/L S0 4 2" , 71 mg/L CI " , 2 mg/L N0 3 -N, 1 mg/L P, 0,04 mg/L P0 4 3 — P and 20 mg/L Si0 2 .
- the q 10 maximum values appear at water pH 6 for As(V) adsorption at 18 pg/mg for Fe 0 .88 n 0. i 2 OOH and for As(lll) adsorption at 7.5 pg/mg for Fe 0 .75Mn 0 . 25 OOH.
- n(IV) content in feroxyhite does not seem to seriously affect As(V) adsorption efficiency but in the contrary, as Mn(IV) concentration decreases, As(lll) adsorption capacity falls with the minimum value obtained for zero concentration of Mn(IV). This fact allows the production of a feroxyhite with a composition matching to the specific quality of the treated water with respect to the concentration ratio [As(V)]/[As(lll)].
- the flow of KMn0 4 is adjusted to keep the redox in the range 625 ⁇ 25 mV.
- the reaction pH is adjusted to 5.5 ⁇ 0.1 by the addition of NaOH solution with concentration 30 % w/w.
- a similar redox and pH adjustment takes place in the second reactor (2) by adding small quantities of KMn0 4 and NaOH.
- the manganese valence is 4.0.
- the adsorption capacity for As(V) is 11 pg/mg and for As(lll) 5 pg/mg in standard NSF water with pH 7.0.
- the redox is adjusted in the range 625 ⁇ 25 mV by the addition of a solution 2KHSO 5 KHSO4 K2SO4 with concentration 100 g/L.
- the reaction pH is adjusted to 5.5 ⁇ 0.1 by the addition of NaOH solution with concentration 30 % w w.
- a similar redox and pH adjustment takes place in reactor (2) by adding small quantities of 2KHS0 5 KHS0 4 K 2 S0 4 and NaOH.
- the product in the outflow of the reactor (2) goes to the thickening tank where it remains under slow stirring for 24 h, then it is mechanically dewatered e.g. by centrifuge or filterpress, formed to a size 250- 2500 ⁇ and dried at 110°C.
- the obtained product has a structure type Feo 88 n 0 .i 2 00H and the manganese valence 4.0.
- the adsorption capacity for As(V) is 11 Mg/mg and for As(lll) 3.5 Mg/mg in standard NSF water with pH 7.0.
- the obtained product has a structure type Fe 0 .8 8 Mn 0 12 OOH and the manganese valence 4.0.
- the adsorption capacity for As(V) is 11 Mg/mg and for As(lll) 3.5 Mg/mg in standard NSF water with pH 7.0.
- the method described in this invention can be applied in laboratory or industrial scale depending on the productivity of the continuous flow reactor.
- the product prepared by the described method of synthesis of this invention can be used for arsenic adsorption and especially for As(lll) forms as well as for other heavy metals including vanadium, antimony, mercury, nickel and lead preferably in a column bed or powder dispersions.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Hydrology & Water Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Water Treatment By Sorption (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Compounds Of Iron (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RS20140595A RS53583B1 (en) | 2010-09-28 | 2011-09-26 | A method for the synthesis of tetravalent manganese feroxyhite for arsenic removal from water |
EP11771273.7A EP2621862B1 (en) | 2010-09-28 | 2011-09-26 | A method for the synthesis of tetravalent manganese feroxyhite for arsenic removal from water |
RU2013119295/05A RU2587085C2 (en) | 2010-09-28 | 2011-09-26 | Method for synthesis of tetravalent manganese feroxyhite for arsenic removal from water |
AU2011309862A AU2011309862B2 (en) | 2010-09-28 | 2011-09-26 | A method for the synthesis of tetravalent manganese feroxyhite for arsenic removal from water |
ES11771273.7T ES2520645T3 (en) | 2010-09-28 | 2011-09-26 | A method for the synthesis of tetravalent manganese feroxihite for the removal of arsenic from water |
US13/876,484 US9011694B2 (en) | 2010-09-28 | 2011-09-26 | Method for the synthesis of tetravalent manganese feroxyhite for arsenic removal from water |
IL225517A IL225517A (en) | 2010-09-28 | 2013-04-02 | Method for the synthesis of tetravalent manganese feroxyhyte for arsenic removal from water |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GR20100100541 | 2010-09-28 | ||
GR20100100541A GR1007422B (en) | 2010-09-28 | 2010-09-28 | Method for producing manganese (iv) feroxyhyte and use of the product in the removal of arsenic from water. |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012042282A1 true WO2012042282A1 (en) | 2012-04-05 |
Family
ID=43799647
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GR2011/000042 WO2012042282A1 (en) | 2010-09-28 | 2011-09-26 | A method for the synthesis of tetravalent manganese feroxyhite for arsenic removal from water |
Country Status (9)
Country | Link |
---|---|
US (1) | US9011694B2 (en) |
EP (1) | EP2621862B1 (en) |
AU (1) | AU2011309862B2 (en) |
ES (1) | ES2520645T3 (en) |
GR (1) | GR1007422B (en) |
IL (1) | IL225517A (en) |
RS (1) | RS53583B1 (en) |
RU (1) | RU2587085C2 (en) |
WO (1) | WO2012042282A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2574754C1 (en) * | 2014-12-02 | 2016-02-10 | Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский Томский политехнический университет" | Filtering material for drinking water purification |
GR1009164B (en) * | 2016-07-13 | 2017-11-20 | Λουφακης Ανωνυμη Βιομηχανικη Και Εμπορικη Εταιρεια Χημικων Προϊοντων | Method of producing a negatively charged manganese feroxyhite for selective removal of mercury from water, combustion flue gases and natural gas |
CN108328800A (en) * | 2018-03-02 | 2018-07-27 | 中国大唐集团科学技术研究院有限公司西北分公司 | A kind of removal waste water of heat-engine plant heavy metal ion method |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105032356B (en) | 2015-06-05 | 2017-08-11 | 中国科学院生态环境研究中心 | A kind of hollow ferrimanganic composite materials prepared based on etching template and its application |
CN106430699B (en) * | 2016-08-18 | 2019-07-26 | 浙江工业大学 | It is a kind of to utilize MnxCo3-xO4The method that nanocages activate antiepileptic in single persulfate processing water |
CN109110896B (en) * | 2018-10-30 | 2022-04-05 | 上海理工大学 | Agent for removing antimony in printing and dyeing wastewater and removing method thereof |
CN113426471B (en) * | 2021-06-28 | 2022-10-04 | 哈尔滨工业大学 | Dynamic preparation method and enhanced oxidation filtration application of nascent-state nano-layered manganese catalyst |
CN114621599B (en) * | 2022-03-17 | 2023-03-10 | 中南大学 | Nano ferrihydrite-spent grain composite colloidal material and preparation and application thereof |
CN115646431B (en) * | 2022-10-24 | 2024-01-26 | 中南大学 | Gaseous arsenic adsorbing material, preparation and application thereof |
CN116272841B (en) * | 2023-05-11 | 2024-04-19 | 中南大学 | Manganese dioxide/ferric hydroxide porous adsorption material and preparation method and application thereof |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030183579A1 (en) * | 2002-03-29 | 2003-10-02 | Sibdas Bandyopadhya | Process for the preparation of arsenic free water, apparatus therefor, method for the manufacture of porous ceramics for use in pressure filtration to produce arsenic free water |
WO2007047624A1 (en) * | 2005-10-14 | 2007-04-26 | Inframat Corporation | Water treatment composition comprising nanostructured materials |
CN101024160A (en) * | 2006-02-21 | 2007-08-29 | 中国科学院生态环境研究中心 | Preparation of iron-managanese compounded oxide/diatomite adsorbant, its using and regenerating method |
US20100051555A1 (en) | 2008-08-27 | 2010-03-04 | Craft Sr Frank S | Process of removal of arsenic from water |
EP2168677A1 (en) | 2007-07-13 | 2010-03-31 | Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences | Ferrimanganic composite oxide absorbent, method for preparing the same, and method for utilizing the same |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU1143456A1 (en) * | 1984-01-16 | 1985-03-07 | Институт Минералогии,Геохимии И Кристаллохимии Редких Элементов | Metal ion sorbent |
SU1443341A1 (en) * | 1984-10-30 | 1995-10-10 | Институт минералогии, геохимии и кристаллохимии редких элементов | Method of obtaining sorbent of metal ions |
RU2228304C1 (en) * | 2002-12-27 | 2004-05-10 | Общество с ограниченной ответственностью "Комплект Экология" | Water treatment process |
US7378372B2 (en) * | 2005-10-11 | 2008-05-27 | Layne Christensen Company | Filter and sorbent for removal of contaminants from a fluid |
-
2010
- 2010-09-28 GR GR20100100541A patent/GR1007422B/en active IP Right Grant
-
2011
- 2011-09-26 RU RU2013119295/05A patent/RU2587085C2/en active
- 2011-09-26 ES ES11771273.7T patent/ES2520645T3/en active Active
- 2011-09-26 WO PCT/GR2011/000042 patent/WO2012042282A1/en active Application Filing
- 2011-09-26 AU AU2011309862A patent/AU2011309862B2/en active Active
- 2011-09-26 US US13/876,484 patent/US9011694B2/en active Active
- 2011-09-26 RS RS20140595A patent/RS53583B1/en unknown
- 2011-09-26 EP EP11771273.7A patent/EP2621862B1/en active Active
-
2013
- 2013-04-02 IL IL225517A patent/IL225517A/en active IP Right Grant
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030183579A1 (en) * | 2002-03-29 | 2003-10-02 | Sibdas Bandyopadhya | Process for the preparation of arsenic free water, apparatus therefor, method for the manufacture of porous ceramics for use in pressure filtration to produce arsenic free water |
WO2007047624A1 (en) * | 2005-10-14 | 2007-04-26 | Inframat Corporation | Water treatment composition comprising nanostructured materials |
CN101024160A (en) * | 2006-02-21 | 2007-08-29 | 中国科学院生态环境研究中心 | Preparation of iron-managanese compounded oxide/diatomite adsorbant, its using and regenerating method |
EP2168677A1 (en) | 2007-07-13 | 2010-03-31 | Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences | Ferrimanganic composite oxide absorbent, method for preparing the same, and method for utilizing the same |
US20100051555A1 (en) | 2008-08-27 | 2010-03-04 | Craft Sr Frank S | Process of removal of arsenic from water |
Non-Patent Citations (8)
Title |
---|
G. ZHANG ET AL., JOUMAL OF HAZARDOUS MATERIALS, vol. 168, 2009, pages 820 |
G. ZHANG ET AL., WATER RESEARCH, vol. 41, 2007, pages 1921 |
H. ZENG ET AL., WATER RESEARCH, vol. 42, 2008, pages 4629 |
KAZUNORI SATO ET AL: "PREFERENTIAL ADSORPTION OF LEAD IONS ON MN-SUBSTITUTED GOETHITE PARTICLES IN AQUEOUS SOLUTIONS OF COPPER, LEAD AND ZINC", ITE LETTERS ON BATTERIES, NEW TECHNOLOGIES & MEDICINE, ITE-IBA OFFICE, BRUNSWICK, OH, US, vol. 5, no. 3, 1 January 2004 (2004-01-01), pages 250 - 255, XP001511728, ISSN: 1531-2046 * |
M. STUMM, J. MORGAN: "Aquatic Chemistry: An introduction emphasizing chemical equilibria in natural waters", 1981 |
P. LAKSHMIPATHIRAJ ET AL., JOUMAL OF COLLOID AND INTERFACE SCIENCE, vol. 304, 2006, pages 317 |
S.S. MOHANTY ET AL., CHEMISTRY AND ECOLOGY, vol. 24, 2008, pages 23 |
X SUN ET AL., CLAYS AND CLAY MINERALS, vol. 47, 1999, pages 474 |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2574754C1 (en) * | 2014-12-02 | 2016-02-10 | Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский Томский политехнический университет" | Filtering material for drinking water purification |
GR1009164B (en) * | 2016-07-13 | 2017-11-20 | Λουφακης Ανωνυμη Βιομηχανικη Και Εμπορικη Εταιρεια Χημικων Προϊοντων | Method of producing a negatively charged manganese feroxyhite for selective removal of mercury from water, combustion flue gases and natural gas |
WO2018011609A2 (en) | 2016-07-13 | 2018-01-18 | Loufakis Chemicals S.A. | A method for the synthesis of negatively charged manganese feroxyhyte for the selective removal of mercury from water. |
WO2018011609A3 (en) * | 2016-07-13 | 2018-02-15 | Loufakis Chemicals S.A. | A method for the synthesis of negatively charged manganese feroxyhyte for the selective removal of mercury from water. |
RU2744898C2 (en) * | 2016-07-13 | 2021-03-16 | Инновейтив Филтер Медиа Текнолоджи Прайвит Кэпитал Кампани | Method for the synthesis of negatively charged manganese pheroxygite for the selective removal of mercury from water |
US11427481B2 (en) | 2016-07-13 | 2022-08-30 | Innovative Filter Media Technology Private Capital Company | Method for the synthesis of negatively charged manganese feroxyhyte for the selective removal of mercury from water |
CN108328800A (en) * | 2018-03-02 | 2018-07-27 | 中国大唐集团科学技术研究院有限公司西北分公司 | A kind of removal waste water of heat-engine plant heavy metal ion method |
Also Published As
Publication number | Publication date |
---|---|
EP2621862B1 (en) | 2014-08-06 |
US9011694B2 (en) | 2015-04-21 |
IL225517A0 (en) | 2013-06-27 |
ES2520645T3 (en) | 2014-11-11 |
AU2011309862A1 (en) | 2013-05-23 |
RU2013119295A (en) | 2014-11-10 |
GR1007422B (en) | 2011-10-05 |
US20130180925A1 (en) | 2013-07-18 |
IL225517A (en) | 2017-10-31 |
AU2011309862B2 (en) | 2017-01-19 |
RU2587085C2 (en) | 2016-06-10 |
EP2621862A1 (en) | 2013-08-07 |
RS53583B1 (en) | 2015-02-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2621862B1 (en) | A method for the synthesis of tetravalent manganese feroxyhite for arsenic removal from water | |
Cheng et al. | Catalytic oxidation removal of ammonium from groundwater by manganese oxides filter: Performance and mechanisms | |
AU2009314130B2 (en) | Target material removal using rare earth metals | |
AU2012243138B2 (en) | Rare earth removal of hydrated and hydroxyl species | |
Yin et al. | Characterization of Co-doped birnessites and application for removal of lead and arsenite | |
US20100155330A1 (en) | Target material removal using rare earth metals | |
US20120261345A1 (en) | Rare earth removal of hydrated and hydroxyl species | |
Jiang et al. | Removal behavior and mechanism of Co (II) on the surface of Fe–Mn binary oxide adsorbent | |
JP6180235B2 (en) | Hydrogen peroxide and ozone decomposition catalyst, hydrogen peroxide and ozone decomposition method | |
JP2010285340A (en) | Scorodite-type iron/arsenic compound particle, production method thereof, and arsenic-containing solid | |
US20120187047A1 (en) | Rare earth removal of hydrated and hydroxyl species | |
US10377648B2 (en) | Selenium removal using aluminum salt at conditioning and reaction stages to activate zero-valent iron (ZVI) in pironox process | |
Tajima et al. | Coprecipitation mechanisms of Zn by birnessite formation and its mineralogy under neutral pH conditions | |
Xu et al. | Amorphous Fe–Mn binary oxides nanoparticles decorating waste bamboo biomass-based monolith for efficient arsenic removal with column adsorption | |
EP3393652A1 (en) | A method for the synthesis of a bivalent tin oxy-hydroxide adsorbent for the removal of hexavalent chromium from water, particularly drinking water, the adsorbent and its use | |
Wensheng et al. | Arsenic (III) remediation from contaminated water by oxidation and Fe/Al Co-precipitation | |
Ding et al. | Modified Rare Earth Waste Composite Material for Simultaneous Denitrification and Recovery of Phosphate in Water | |
Uchiyama et al. | Preparation and characterization of Pd loaded Sr-deficient K2NiF4-type (La, Sr) 2MnO4 catalysts for NO–CO reaction | |
EP3484820B1 (en) | A method for the synthesis of negatively charged manganese feroxyhyte for the selective removal of mercury from water. | |
Shen et al. | Ozone pre-oxidation to accelerate the ripening of manganese oxides filter for efficient manganese removal from drinking water | |
Nakajima et al. | Removal of arsenic and selenium compounds from aqueous media by using TiO2 photocatalytic reaction | |
Chung et al. | Preparation of Ion-Sieve Type (H)[M0. 5Mn1. 5] O4 (M= Mg, Zn) and Their Lithium Adsorption Properties in Seawater Kang-Sup Chung, Mi-Ae Kim, Hwan Lee, Yong-Jae Suh, Dae-Sup Kil, BC Dave 2 and Jae-Chun Lee | |
TRAISTARU et al. | Removal of Nitrate from Water by Two Types of Sorbents |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 11771273 Country of ref document: EP Kind code of ref document: A1 |
|
DPE1 | Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101) | ||
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 13876484 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 225517 Country of ref document: IL |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2011771273 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2013119295 Country of ref document: RU Kind code of ref document: A |
|
ENP | Entry into the national phase |
Ref document number: 2011309862 Country of ref document: AU Date of ref document: 20110926 Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: P-2014/0595 Country of ref document: RS |