Title:
TREATMENT OF WATER-CONTAINING WASTE
Document Type and Number:
Japanese Patent JP3528023
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To collectively treat water-containing waste with high decomposition efficiency and to recover power, heat energy or the like.
SOLUTION: This treatment method is equipped with a process of subjecting preheated water-containing waste to wet oxidation treatment in the presence of oxygen within a first reactor while holding the waste to a temp. of 150°C or higher and pressure keeping a liquid phase, a process of removing sludge and/or a metal component from the first reactor, a process for subjecting high temp. and high pressure treatment liquid to gas-liquid separation and a process of removing sludge and or a metal component from a liquid phase. Further, a process of subjecting the liquid and gas phases of high temp. and high pressure to catalytic wet oxidation treatment in the presence of a catalyst containing at least one of metal and a metal compd. as an active component at liquid linear velocity (sent-in liquid amt./reactor cross-sectional area) of 0.1cm/sec or more at temp. equal to or higher than 100°C and lower than the temp. of the first reactor under pressure holding the treated liquid to a liquid phase is provided.
Inventors:
Futagawa, Michio
Harada, Yoshiaki
Ueda, Shinichi
Matsumoto, Nobuyuki
Yamada, Suekazu
Yamazaki, Kenichi
Harada, Yoshiaki
Ueda, Shinichi
Matsumoto, Nobuyuki
Yamada, Suekazu
Yamazaki, Kenichi
Application Number:
JP1221896A
Publication Date:
May 17, 2004
Filing Date:
January 26, 1996
Export Citation:
Assignee:
OSAKA GAS CO LTD
International Classes:
B09B5/00; B01J21/10; B01J23/30; B01J23/42; B01J23/44; B01J23/46; B01J23/52; B01J23/72; B01J23/745; B01J23/75; B01J23/755; B01J27/057; C02F1/58; C02F1/74; C02F11/08; (IPC1-7): C02F1/74; B01J21/10; B01J23/30; B01J23/42; B01J23/44; B01J23/46; B01J23/52; B01J23/72; B01J23/745; B01J23/75; B01J23/755; B01J27/057; B09B5/00; C02F1/58; C02F11/08
Attorney, Agent or Firm:
三枝 英二 （外４名）