Liquid purification or separation – Processes – Ion exchange or selective sorption
Patent
1998-08-19
2000-07-18
Simmons, David A.
Liquid purification or separation
Processes
Ion exchange or selective sorption
210761, 210743, 210748, 210188, 210205, A62D 300, C02F 1108
Patent
active
060902914
ABSTRACT:
A waste processing method decomposing an organic substance or an inorganic substance contained in organic wastes or inorganic wastes by holding a mixture of the organic wastes or the inorganic wastes and a medium, which is in its supercritical state, for a pre-determined time period, in which the hydrogen ion concentration of the medium is 10.sup.-4 mol or more to 1 kg of the medium.
A waste processing method having a step of decomposing all or almost all of an organic substance included in organic wastes into lower-molecular-weight products by holding the organic wastes in a medium, which is in its supercritical state, for a pre-determined time and a step of oxidizing and decomposing the lower-molecular-weight products into carbon dioxide (CO.sub.2) and/or water (H.sub.2 O) by holding a mixture of an oxidant and the lower-molecular-weight products in the medium, which is in its subcritical state, for a pre-determined time period.
REFERENCES:
patent: 5240619 (1993-08-01), Copa et al.
patent: 5358646 (1994-10-01), Gloyna et al.
Sue et al, "Solubility Measurement of Metal Oxides in Subcritical, Supercritical Water", Chemical Engineering society 63rd Annual Meeting, p. 24.
Foy et al., "Hydrothermal Processing of Chlorinated hydrocarbons in a Titanium Reactor," Environ. Sci. Technol., 30:270-99 (1996).
Copy of Communication (dated Nov. 26, 1998) from European Search Report.
Akai Yoshie
Matsubayashi Yoshikazu
Ohara Atsushi
Yamada Kazuya
Yamaguchi Yasushi
Barry Chester T.
Kabushiki Kaisha Toshiba
Simmons David A.
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