Liquid purification or separation – Processes – Separating
Patent
1994-01-06
1995-11-14
Fortuna, Ana M.
Liquid purification or separation
Processes
Separating
210769, 210770, 210771, 210180, 48197A., 48197R, C02F 100
Patent
active
054663830
ABSTRACT:
A process and apparatus for treating dried sludge comprising organic material, inorganic material and heavy mertals. The process comprises indirectly heating the sludge in the absence of oxygen to a temperature of from 300.degree. to 550.degree. C. for volatilization of organic material and heating the residual char in the absence of oxygen to a temperature of from 750.degree. C. to 1000.degree. C. together with injecting steam for gasifying non volatile organic carbons in theresidual char, whereby the organic material in the sluge is converted into energy-containing products. The heavy metals remain in the ash as metal-sulfide complexes which are not soluble in acdidic water.
REFERENCES:
patent: 3886048 (1975-03-01), Selmeczi et al.
patent: 4270928 (1981-06-01), Frischmuth
patent: 4321150 (1982-03-01), McMullen
patent: 4511459 (1985-04-01), Yan et al.
patent: 4618735 (1986-10-01), Bridle et al.
patent: 4657681 (1987-04-01), Hughes et al.
patent: 5246599 (1993-09-01), Aicher
patent: 5292442 (1994-03-01), Khan et al.
Fortuna Ana M.
Samsung Engineering & Construction Co., Ltd.
LandOfFree
Process for treating sludges does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for treating sludges, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for treating sludges will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1218763