# US 11,078,094 B2 · Process, device and system for treatment of water

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- Number: US 11,078,094 B2
- Document ID: US11078094B2
- Status: Granted
- Kind: B2
- Application number: 16/575,571
- Filed: 2019-09-19
- Published: 2020-02-06
- Granted: 2021-08-03
- Earliest claimed: 2013-12-19
- Assignees: Mekorot Water Company, Ltd
- Applicants: Mekorot Water Company, Ltd
- Inventors: Tomer Kraitzer; Roy Elkayam
- Web page: https://patentgrep.com/patent/US11078094B2

## CPC

- C02F 1/288: {using composite sorbents, e.g. coated, impregnated, multi-layered}
- B01J 20/08: comprising aluminium oxide or hydroxide; comprising bauxite
- B01J 20/28016: {Particle form}
- C02F 1/281: {using inorganic sorbents}
- C02F 1/727: {using pure oxygen or oxygen rich gas}
- C02F 1/74: with air (aeration of stretches of water C02F7/00)
- C02F 2101/006: {Radioactive compounds}
- C02F 2101/10: Inorganic compounds
- C02F 2101/103: {Arsenic compounds}
- C02F 2101/105: {Phosphorus compounds}
- C02F 2101/106: {Selenium compounds}
- C02F 2101/20: Heavy metals or heavy metal compounds
- C02F 2101/203: {Iron or iron compound}
- C02F 2101/206: {Manganese or manganese compounds}
- C02F 2101/22: Chromium or chromium compounds, e.g. chromates
- C02F 2103/007: {Contaminated open waterways, rivers, lakes or ponds}
- C02F 2103/06: Contaminated groundwater or leachate
- C02F 2103/08: Seawater, e.g. for desalination
- C02F 2103/10: from quarries or from mining activities
- C02F 2303/16: Regeneration of sorbents, filters
- C02F: TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE (separation in general B01D; special arrangements on waterborne vessels of installations for treating water, waste water or sewage, e.g. for producing fresh water, B63J; adding materials to water to prevent corrosion C23F; treating radioactively-contaminated liquids G21F9/04; regeneration of reactants for recirculation into processes, see the relevant places for the processes)
- B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS

## Abstract

The present disclosure provides a particulate matter comprising a combination of crystalline manganese oxide and amorphous manganese oxide, the crystalline form being present and forms passages throughout a cross section of said particulate matter, wherein said crystalline form define a specific surface area that is greater than the outer surface of said particulate matter. Also provided herein is a process for removing chemical contaminants from flowing water making use of the particulate matter and a device and a system comprising the particulate matter.

## Claims

### Claim 1

A process for removing a chemical contaminant from an oxygen-rich water comprising:
obtaining said oxygen-rich water comprising said chemical contaminant, wherein said oxygen-rich water is at an oxygen saturation level of between 30% to 100%;
passing said oxygen-rich water through a particulate matter, comprising a combination of crystalline manganese oxide and amorphous manganese oxide, said crystalline form forms passages throughout a cross section of said particulate matter, wherein said crystalline form defines a specific surface area that is greater than the outer surface area of said particulate matter;
thereby removing said chemical contaminant from said oxygen-rich water.

### Claim 2 (depends on 1)

The process of claim 1, wherein said obtaining said oxygen-rich water comprises mixing oxygen with water under conditions that allow dissolution of the oxygen in said water.

### Claim 3 (depends on 2)

The process of claim 2, wherein said oxygen is in a gaseous form.

### Claim 4 (depends on 1)

The process of claim 1, wherein said passing comprises said passing at a flow rate of 0.005 cm/sec to 1 cm/sec.

### Claim 5 (depends on 1)

The process of claim 1, wherein said passing comprises said passing at a flow rate of 0.01 cm/sec to 0.7 cm/sec.

### Claim 6 (depends on 1)

The process of claim 1, wherein said chemical contaminants is a metal, a metalloid, or a combination thereof.

### Claim 7 (depends on 1)

The process of claim 1, wherein said chemical contaminant includes manganese.

### Claim 8 (depends on 1)

The process of claim 1, wherein said chemical contaminant comprises:
iron, radium, uranium, arsenic, silver, aluminum, barium, beryllium, cadmium, cobalt, chromium, copper, lithium, mercury, molybdenum, nickel, phosphorous, lead, antimony, selenium, tin, strontium, thallium, vanadium, zinc, or any combination thereof.

### Claim 9 (depends on 1)

The process of claim 1, further comprising heating said particulate matter prior to said passing.

### Claim 10 (depends on 9)

The process of claim 9, wherein said heating said particulate matter is heating said particulate matter to a temperature of at least 550 degrees Celsius.

### Claim 11 (depends on 9)

The process of claim 9, wherein said heating further comprises combusting organic matter in said particulate matter.

### Claim 12 (depends on 1)

The process of claim 1, wherein said crystalline manganese oxide and said amorphous manganese oxide are at a concentration of between 40% w/w to 90% w/w of a total weight of said particulate matter.