Environmentally acceptable waste disposal by conversion of hydrothermally labile compounds
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C02F-001/02
C02F-001/72
출원번호
US-0091617
(1993-07-13)
발명자
/ 주소
Ross David S. (Palo Alto CA) Jayaweera Indira (Fremont CA) Nguyen Lien (San Jose CA) Hum Georgina P. (Menlo Park CA) Haag Werner R. (San Jose CA)
출원인 / 주소
SRI International (Menlo Park CA 02)
인용정보
피인용 횟수 :
12인용 특허 :
0
초록▼
The present invention relates to a process for the disposal of waste or the conversion of hydrothermally labile chemical groups and compounds to species which are environmentally acceptable, or are amendable to further degradation by conventional disposal systems to produce environmentally acceptabl
The present invention relates to a process for the disposal of waste or the conversion of hydrothermally labile chemical groups and compounds to species which are environmentally acceptable, or are amendable to further degradation by conventional disposal systems to produce environmentally acceptable products, which process comprises: (a) conveying an aqueous solution or slurry of ordnance waste material into a reaction zone capable of withstanding the temperatures and pressures of hydrothermal decomposition; (b) reacting the waste material in the reaction zone with an aqueous composition comprising one or more alkali or alkaline earth metal silicates, borates, phosphates, biphosphates, or trisubstituted-phosphates, at between 200°C. and 500°C. and at a pressure between 10 and 400 atmospheres for between about 0.01 and 10 minutes; (c) producing compounds which are environmentally acceptable or are amenable to further degradation by conventional disposal systems; and (d) optionally degrading further the compounds of step (e) by reaction in a conventional disposal system. The waste includes ordnance waste, process waste, agricultural waste and the like.
대표청구항▼
A process for the disposal of waste or the conversion of hydrothermally labile chemical groups and compounds by hydrothermal decomposition to compounds which are environmentally acceptable, or hydrothermal conversion to compounds which are then amenable to further degradation by conventional disposa
A process for the disposal of waste or the conversion of hydrothermally labile chemical groups and compounds by hydrothermal decomposition to compounds which are environmentally acceptable, or hydrothermal conversion to compounds which are then amenable to further degradation by conventional disposal systems to produce environmentally acceptable products, which process comprises: (a) conveying an aqueous solution or aqueous slurry of ordnance waste into a reaction zone capable of withstanding the temperatures and pressures of hydrothermal decomposition of the hydrothermally labile chemical groups or compounds; (b) reacting the waste in the reaction zone with an aqueous composition comprising a salt selected from the group consisting of silica, lithium silicate, sodium silicate, potassium silicate, rubidium silicate, cesium silicate, lithium borate, sodium borate, potassium borate, rubidium borate, cesium borate, lithium phosphate, sodium phosphate, potassium phosphate, rubidium phosphate, cesium phosphate, lithium biphosphate, potassium biphosphate, rubidium biphosphate, cesium biphosphate, trilithium phosphate, trisodium phosphate, tripotassium phosphate, trirubidium triphosphate, tricesium phosphate, and combinations thereof said salt in an amount effective to hydrothermally decompose said ordnance waste with the proviso that no oxidant or transition metal catalyst is added to the reaction mixture at between 200°C. and 500°C. and at a pressure between 20 and 400 atmospheres for between about 0.01 and 10 minutes wherein water as a liquid is always present; (c) producing about 99.9% or greater hydrothermal decomposition of the ordnance waste or 99.9% or greater conversion of the waste to compounds which are environmentally acceptable or are amenable to further degradation; and (d) optionally degrading further the compounds of step (c) by reaction to environmentally acceptable products.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허를 인용한 특허 (12)
Griffith James Walton ; Wofford ; III William Tracy ; Griffith James Randolph, Apparatus for oxidizing undigested wastewater sludges.
Ross David S. ; Jayaweera Indira ; Bomberger David C. ; Leif Roald N., Hydrothermal oxidation of organic compounds with heterogenous neutralizing reagent.
Ross David S. ; Jayaweera Indira ; Leif Roald N., Method for hydrothermal oxidation of halogenated organic compounds with addition of specific reactants.
James L. Manganaro ; Henry A. Pfeffer ; Jay R. Brummer ; Bert D. McMunn ; Christopher M. Knapp ; William M. Copa, Process for rendering waste from electric furnace production of phosphorus non-hazardous.
Venkatesh K. Raman ; Cobes Eve R. ; Jennings Dale Lee ; Wagner Norman J., Process for the removal and destruction of perchlorate and nitrate from aqueous streams.
Heywood Ann C. ; Holst Mark R. ; Martin Richard J. ; Schofield John T., Systems for the treatment of commingled wastes and methods for treating commingled wastes.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.