Analysis of modified wet-air oxidation for soil detoxification

Technical Report · Tue Sep 01 00:00:00 EDT 1987

OSTI ID:5935664

Unterberg, W; Willms, R S; Balinsky, A M; Reible, D D; Wetzel, D M

This report presents the results of research on wet-air oxidation as a method for the destruction of hazardous wastes. For organics in the presence of large amounts of water, the water need not be vaporized during wet-air oxidation, an attractive characteristic for energy conservation. The feasibility of using wet-air oxidation was investigated in terms of the effects of temperature, pressure, and the presence or absence of soil on the oxidation rate of three model compounds. Wet-air oxidation is a semi-commercial process that has been used to treat a variety of weakly toxic chemical wastes and for the regeneration of activated carbon. In the study, wet-air oxidation research was carried out in a 1-liter batch reactor at temperatures from 130 to 275/sup 0/C and pressures from 703-1760 x 10/sup 3/ kg/sq m on three substances: m-xylene, tetrachloroethylene (TCE), and malathion, both with and without addition of soil. Any attempt to balance the effect of residence time and the cost of energy requires an accurate description of the oxidation kinetics for the compound or waste stream in question. Due to the sampling technique used during the investigation and the inherent nature of the wet-air oxidation process, a variety of potential problems with the interpretation and analysis of the raw concentration-time data were encountered during the study.

• Research Organization: Environmental Monitoring and Services, Inc., Camarillo, CA (USA)
• OSTI ID: 5935664
• Report Number(s): PB-88-102397/XAB
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
HAZARDOUS MATERIALS
WASTE PROCESSING
SOILS
DETOXIFICATION
WATER POLLUTION CONTROL
WET OXIDATION PROCESSES
ENERGY CONSERVATION
ENERGY EFFICIENCY
ORGANIC COMPOUNDS
CONTROL
EFFICIENCY
MANAGEMENT
MATERIALS
POLLUTION CONTROL
PROCESSING
WASTE MANAGEMENT
510200* - Environment
Terrestrial- Chemicals Monitoring & Transport- (-1989)
520200 - Environment
Aquatic- Chemicals Monitoring & Transport- (-1989)