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Title:
ANAEROBIC WATER TREATMENT SYSTEM
Document Type and Number:
Japanese Patent JP2015157271
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an anaerobic water treatment system that causes no deterioration of treatment performance and has high treatment efficiency.SOLUTION: An anaerobic water treatment system comprises: an anaerobic reactor; a raw water introduction pipe 13; a raw water pump P1; a granular sludge bed part 21 that forms a granular fluidized bed in the anaerobic reactor when raw water is supplied to a lower part 2b of the anaerobic reactor; a gas-solid-liquid separator 4a, 4b that is disposed above the granular sludge bed part 21 to separate solid matter and biogas from each other; and an overflow part 5b that discharges treated water from the anaerobic reactor. The anaerobic water treatment system includes: a guide pipe 11 whose upper end opens below a water level defined by the overflow part 5b and whose lower end opens in the granular sludge bed part 21 and into which the raw water introduction pipe 13 is inserted from an opening 11a of the upper end so that an introduction port of the raw water introduction pipe 13 faces downward and which guides the raw water, introduced from the raw water introduction pipe 13, to the granular sludge bed part 21; and a downward flow generator 12 that is mounted to a hollow part of the guide pipe 11 to apply a downward driving force to the raw water introduced into the guide pipe 11.

Inventors:
OBARA TAKUMI
NAKAYAMA YOSHIO
ASHIKAGA NOBUYUKI
YAMAMOTO KATSUYA
Application Number:
JP2014034374A
Publication Date:
September 03, 2015
Filing Date:
February 25, 2014
Export Citation:
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Assignee:
TOSHIBA CORP
International Classes:
C02F3/28
Domestic Patent References:
JPS60227887A1985-11-13
JP2000266258A2000-09-26
JP2012130869A2012-07-12
JP2007506542A2007-03-22
JP2007120755A2007-05-17
JP2005262200A2005-09-29
JP2003080285A2003-03-18
JP2003053371A2003-02-25
JP2012250159A2012-12-20
JPS60227887A1985-11-13
JP2000266258A2000-09-26
JP2012130869A2012-07-12
Foreign References:
KR100646216B12006-11-23
KR100646216B12006-11-23
Attorney, Agent or Firm:
Kurata Masatoshi
Yoshihiro Fukuhara
Nobuhisa Nogawa
Takashi Mine
Naoki Kono
Katsu Sunagawa
Morisezo Iseki
Tadashi Inoue
Tatsushi Sato
Takashi Okada
Mihoko Horiuchi



 
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