Title:
SUSPENSOID REMOVAL METHOD AND SUSPENSOID REMOVAL DEVICE USING BIOFILM
Document Type and Number:
WIPO Patent Application WO/2016/132556
Kind Code:
A1
Abstract:
The objective of the present invention is to provide a suspensoid removal method and suspensoid removal device with which a filtrate satisfying a water quality standard can be obtained at low cost without requiring sludge treatment equipment. This suspensoid removal method comprises: a step in which a protrusion element is supplied to a filtration layer (2a) formed by being filled with a solid filtration material, and a protrusion is imparted to the surface of the solid filtration material; a step in which, after the protrusion element is supplied in the step for imparting a protrusion, it is determined, on the basis of a standard set in advance, whether or not a protrusion has been imparted to the surface of the solid filtration material, and, if it is determined that such a protrusion has been imparted, the supply amount of the protrusion element is reduced further than during the imparting of the protrusion; a step in which a biofilm is formed on the surface of the solid filtration material; and a step in which, with the protrusion element supply amount reduced, water to be treated that includes a suspensoid is passed through the filtration layer (2a) which has the solid filtration material to which the protrusion has been imparted.
Inventors:
TABATA MASAYUKI (JP)
FURUKAWA SEIJI (JP)
MATSUI KATSUNORI (JP)
SUZUKI HIDEO (JP)
KONDO GAKU (JP)
YOSHIOKA SHIGERU (JP)
ISHIGURO MASAKI (JP)
FURUKAWA SEIJI (JP)
MATSUI KATSUNORI (JP)
SUZUKI HIDEO (JP)
KONDO GAKU (JP)
YOSHIOKA SHIGERU (JP)
ISHIGURO MASAKI (JP)
Application Number:
PCT/JP2015/054886
Publication Date:
August 25, 2016
Filing Date:
February 20, 2015
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD (JP)
International Classes:
B01D24/00; B01D24/36; B01D29/25; B01D29/37; B01D35/22; B01D37/02; B01D39/06; C02F1/70; C02F3/10
Foreign References:
| JPS63143917A | 1988-06-16 | |||
| JPH0263510A | 1990-03-02 | |||
| JPS63294917A | 1988-12-01 | |||
| JPH0871334A | 1996-03-19 | |||
| JPS5376544A | 1978-07-07 | |||
| JP2004130197A | 2004-04-30 |
Attorney, Agent or Firm:
FUJITA, Takaharu et al. (JP)
Takaharu Fujita (JP)
Takaharu Fujita (JP)
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