# US 2014/0151277 A1 · Fluid purification system

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- Number: US 2014/0151277 A1
- Document ID: US20140151277A1
- Status: Published application
- Kind: A1
- Application number: 14/095,087
- Filed: 2013-12-03
- Published: 2014-06-05
- Earliest claimed: 2012-12-04
- Assignees: Ricoh Company, Ltd.
- Inventors: Kimio Aoki; Shogo SUZUKI; Toshiyuki MUTOH; Hideyuki MIYAZAWA; Makito NAKASHIMA; Aya UTSUKI; Kenichi HAYAKAWA; Yu ZAMA; Shigeru YAMADA
- Web page: https://patentgrep.com/patent/US20140151277A1

## CPC

- C02F 1/72: by oxidation {(C02F1/4672 takes precedence)}
- B01J 3/008: {Processes carried out under supercritical conditions}
- B01J 19/2485: {Monolithic reactors}
- C02F 1/025: {Thermal hydrolysis}
- C02F 11/08: Wet air oxidation
- B01J 2219/00006: Large-scale industrial plants
- B01J 2219/00159: controlling multiple zones along the direction of flow, e.g. pre-heating and after-cooling
- C02F 1/20: by degassing, i.e. liberation of dissolved gases (degasification of liquids in general B01D19/00; arrangement of degassing apparatus in boiler feed supply F22D)
- C02F 1/444: {by ultrafiltration or microfiltration}
- C02F 1/725: {by catalytic oxidation}
- C02F 1/727: {using pure oxygen or oxygen rich gas}
- C02F 1/74: with air (aeration of stretches of water C02F7/00)
- C02F 1/78: with ozone {(C02F1/4672 takes precedence)}
- C02F 11/086: {in the supercritical state}
- C02F 2101/16: Nitrogen compounds, e.g. ammonia
- C02F 2101/30: Organic compounds
- C02F 2103/28: from the paper or cellulose industry
- C02F 2103/36: from the manufacture of organic compounds
- C02F 2201/003: Coaxial constructions, e.g. a cartridge located coaxially within another
- C02F 2209/001: Upstream control, i.e. monitoring for predictive control
- C02F 2209/003: Downstream control, i.e. outlet monitoring, e.g. to check the treating agents, such as halogens or ozone, leaving the process
- C02F 2209/006: comprising a software program or a logic diagram
- C02F 2209/02: Temperature
- C02F 2209/03: Pressure
- C02F 2209/05: Conductivity or salinity
- C02F 2209/08: Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
- C02F 2209/11: Turbidity
- C02F 2209/20: Total organic carbon [TOC]
- C02F 2209/225: in the gas phase
- C02F 2209/235: in the gas phase
- C02F 2209/40: Liquid flow rate
- C02F 2301/066: Overpressure, high pressure
- C02F 2303/10: Energy recovery
- C02F 2303/26: Reducing the size of particles, liquid droplets or bubbles, e.g. by crushing, grinding, spraying, creation of microbubbles or nanobubbles
- Y02W 10/30: Wastewater or sewage treatment systems using renewable energies
- Y02W 30/78: Recycling of wood or furniture waste
- 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
- Y02W: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT

## Abstract

A fluid purification system includes a reaction tank which purifies a purification target fluid by decomposing an organic substance in a purification target fluid with an oxidation reaction while heating and pressurizing a mixed fluid of the purification target fluid and an oxidant; a crusher which crushes an organic solid waste so as to obtain an organic crushed product; and a mixer which mixes the organic crushed product and liquid so as to obtain high concentration organic slurry.

## Claims

### Claim 1

A fluid purification system, comprising:
a reaction tank which purifies a purification target fluid by decomposing an organic substance in a purification target fluid with an oxidation reaction while heating and pressurizing a mixed fluid of the purification target fluid and an oxidant;
a crusher which crushes an organic solid waste so as to obtain an organic crushed product;
a mixer which mixes the organic crushed product and liquid so as to obtain high concentration organic slurry; and
a mixing pump which mixes the purification target fluid with the high concentration organic slurry, so as to be pumped to the reaction tank.

### Claim 2 (depends on 1)

The fluid purification system according to claim 1, wherein
the crusher has a configuration which rotates a container housing a sphere and an organic solid waste while revolving the container, so as to press the sphere toward an inside wall of the container by a centrifugal force of the revolution, and crushes the organic solid waste between the sphere and the inner wall by the rotation of the container.

### Claim 3 (depends on 2)

The fluid purification system according to claim 2, wherein
a planetary ball mill is used as the crusher.

### Claim 4 (depends on 2)

The fluid purification system according to claim 2, wherein
waste paper is used as the organic solid waste.

### Claim 5 (depends on 4)

The fluid purification system according to claim 4, wherein
waste thermal paper is used as the waste paper.

### Claim 6 (depends on 4)

The fluid purification system according to claim 4, further comprising:
a shredder which shreds the waste paper, wherein
strips shredded by the shredder are supplied to the crusher.

### Claim 7 (depends on 6)

The fluid purification system according to claim 6, wherein
the mixer is configured to mix liquid and paper powder crushed by the crusher, so as to obtain a concentration of 4-15 [wt %] of the paper powder in liquid.

### Claim 8 (depends on 1)

The fluid purification system according to claim 1, further comprising:
a temperature detector which detects a temperature of the reaction tank or a temperature of the mixed fluid in the reaction tank; and
an oxidant pump which pumps oxidant to the reaction tank; and
a controller which controls a mixture ratio of the high concentration organic slurry to a purification target fluid or a pumping speed of the high concentration organic slurry by the slurry pump based on the detection result by the temperature detector.

### Claim 9 (depends on 1)

The fluid purification system according to claim 1, further comprising:
a temperature detector which detects a temperature of the reaction tank or a temperature of the mixed fluid in the reaction tank;
an oxidant pump which pumps oxidant to the reaction tank; and
a controller which controls an organic substance concentration of a mixture of the high concentration organic slurry and the purification target fluid based on the detection result by the temperature detector.

### Claim 10

A fluid purification system, comprising:
a reaction tank which purifies a purification target fluid by decomposing an organic substance in a purification target fluid with an oxidation reaction while heating and pressurizing a mixed fluid of the purification target fluid and an oxidant;
a crusher which crushes an organic solid waste so as to obtain an organic crushed product;
a mixer which mixes the organic crushed product and liquid so as to obtain high concentration organic slurry; and
a slurry pump which pumps the high concentration organic slurry to the reaction tank separately from the purification target fluid.