Purification unit and purification device

Patent metadata

Field	Value
Publication number	US-2020317543-A1
Application number	US-201716304161-A
Country	US
Kind code	A1
Filing date	Jan 30, 2017
Priority date	Jun 1, 2016
Publication date	Oct 8, 2020
Grant date	—

Abstract

A purification unit includes a first electric conductor, a second electric conductor, and a third electric conductor. At least a part of the first electric conductor is electrically connected to one surface of the third electric conductor, and at least a part of the second electric conductor is electrically connected to the other surface of the third electric conductor. At least a part of the first electric conductor contacts a gas phase including oxygen, and at least a part of the second electric conductor contacts a treatment target. A purification device includes the purification unit, and a treatment tank for holding, in an inside, the purification unit and wastewater to be purified by the purification unit. The purification unit is installed so at least a part of the first electric conductor contacts the gas phase, and at least a part of the second electric conductor contacts the wastewater.

First claim

1 . A purification unit comprising:
a first electric conductor in which an oxygen reduction reaction occurs; a second electric conductor different from the first electric conductor and generating hydrogen ions and electrons from at least either one of organic matter and a nitrogen-containing compound; and a third electric conductor different from the first electric conductor and the second electric conductor, wherein at least a part of the first electric conductor is electrically connected to one surface of the third electric conductor, and at least a part of the second electric conductor is electrically connected to other surface of the third electric conductor, and at least a part of the first electric conductor contacts a gas phase including oxygen, and at least a part of the second electric conductor contacts a treatment target, and an external circuit which ensures a potential difference between the first electric conductor and the second electric conductor is not provided.

2 . The purification unit according to claim 1 , wherein the third electric conductor has higher electrical resistivity than the first electric conductor and the second electric conductor have.

3 . The purification unit according to claim 1 , wherein the first electric conductor comprises an oxygen reduction catalyst.

4 . A purification device comprising:
the purification unit according to claim 1 ; and a treatment tank which holds, in an inside, the purification unit and wastewater to be purified by the purification unit, wherein the purification unit is installed so that at least a part of the first electric conductor contacts the gas phase, and that at least a part of the second electric conductor contacts the wastewater.

5 . A purification device comprising:
the purification unit according to claim 1 , wherein the purification unit is installed so that at least a part of the first electric conductor contacts the gas phase, and that at least a part of the second electric conductor contacts soil to be purified by the purification unit.

6 . The purification device according to claim 4 , wherein anaerobic microorganisms are supported on at least either one of a surface and inside of the second electric conductor.

Assignees

• Panasonic Ip Man Co Ltd

Inventors

• Suzuki Yuya
• Yoshikawa Naoki
• Kamai Ryo
• Yaguchi Mitsuo

Classifications

• C02F3/005 Primary

  Combined electrochemical biological processes (aeration by electrolytically produced oxygen bubbles C02F3/202) · CPC title

• C02F1/4676 Primary

  by electroreduction · CPC title

• C02F3/34

  characterised by the microorganisms used · CPC title

• B01J27/24

  Nitrogen compounds · CPC title

• Y02E50/30

  Fuel from waste, e.g. synthetic alcohol or diesel · CPC title