Title:
WASTE WATER TREATMENT SYSTEM
Document Type and Number:
Japanese Patent JP2018008237
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To obtain a waste water treatment system, while sufficiently reducing the organic matter load of active sludge in a biological treatment tank by a high concentration ozone gas, capable of preventing enlargement.SOLUTION: Provided is a waste water treatment system 100 comprising: an ozone gas feed apparatus 10 having two ozone concentration storage parts 12a, 12b mutually connected in parallel and adsorptively concentrating an ozone gas fed from an ozone gas feed part 11 to generate a high concentration ozone gas; two waste water treatment apparatuses 90a, 90b provided at a sludge circulation mechanism circulating sludge-containing treatment water generated at aeration tanks 93a, 93b treating waste water and respectively having ejectors 91a, 91b sucking and desorbing the high concentration ozone gas from the ozone concentration storage parts 12a, 12b and mixing the same with the sludge-containing treatment water; and a controller 61 performing the switching operation of the ozone gas feed destination of the ozone gas feed part 11.SELECTED DRAWING: Figure 1
Inventors:
ARIMA YOSHIAKI
TOKIMORI KOUICHI
FURUKAWA SEIJI
GOTO SHINSUKE
KOGA HIROMICHI
TOKIMORI KOUICHI
FURUKAWA SEIJI
GOTO SHINSUKE
KOGA HIROMICHI
Application Number:
JP2016139889A
Publication Date:
January 18, 2018
Filing Date:
July 15, 2016
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
C02F3/12; C02F11/06
Domestic Patent References:
| JP2013226536A | 2013-11-07 | |||
| JP2007105606A | 2007-04-26 | |||
| JP2014065620A | 2014-04-17 | |||
| JP2013056810A | 2013-03-28 |
Foreign References:
| WO2008062534A1 | 2008-05-29 | |||
| US20130061750A1 | 2013-03-14 | |||
| KR20110040836A | 2011-04-20 |
Attorney, Agent or Firm:
Masuo Oiwa
Takenaka Ikuo
Keigo Murakami
Kenji Yoshizawa
Takenaka Ikuo
Keigo Murakami
Kenji Yoshizawa