MICRO BUBBLE CLEANING METHOD USING LIQUID CONTAINING MICRO BUBBLES, APPARATUS THEREFOR, AND DISSOLVED AIR FLOATATION APPARATUS

Title:

MICRO BUBBLE CLEANING METHOD USING LIQUID CONTAINING MICRO BUBBLES, APPARATUS THEREFOR, AND DISSOLVED AIR FLOATATION APPARATUS

Document Type and Number:

WIPO Patent Application WO/2015/137484

Kind Code:

A1

Abstract:

A micro bubble cleaning apparatus (80) uses a liquid containing micro bubbles having a size of less than 30 nm to rinse fine particles adhered to soil, sand, etc. so as to separate and recover said fine particles. Said apparatus is provided with: a water tank-shaped reservoir (82); a stirring device (84) positioned in the center of the reservoir (82) for stirring a liquid inside the reservoir (82); a supernatant discharge device (85) including a pump for discharging the supernatant of the liquid inside the reservoir (82); and a sedimentation extraction device (86) for extracting sedimentation isolates that have settled at the bottom of the reservoir (82). Substances to be washed such as soil and sand are loaded into a liquid containing micro bubbles, which has accumulated inside the reservoir (82), the liquid containing micro bubbles is repeatedly brought into contact with the surfaces of the substances to be washed by the stirring device (84), fine organic particles such as fine metal particles (including metal ions), solvents, drugs and oil adhered to pits, cracks or the surfaces of the substances to be washed are isolated due to the micro bubbles getting in between the organic particles and the substances to be washed, and then float to the top.

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Inventors:

SUZUKI TOSHIKATSU (JP)

Application Number:

PCT/JP2015/057469

Publication Date:

September 17, 2015

Filing Date:

March 13, 2015

Export Citation:

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Assignee:

PCS CO LTD (JP)

International Classes:

G21F9/12; B01J20/20; B01J20/28; B08B3/10; G21F9/10; G21F9/28; G21F9/30

Foreign References:

JP2013140096A	2013-07-18
JP2010162518A	2010-07-29
JP2013180213A	2013-09-12
JP2011066389A	2011-03-31

Attorney, Agent or Firm:

MATSUYAMA, Keisuke et al. (JP)
Keisuke Matsuyama (JP)

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