Record Display for the EPA National Library Catalog
RECORD NUMBER: 4356 OF 4942
|OLS Field Name||OLS Field Data|
|Main Title||Summary report : detoxification of Navy red dye by microwave plasma /|
|Author||Bailin, L. J.|
|CORP Author||Lockheed Missiles and Space Co., Inc., Palo Alto, Calif. Palo Alto Research Lab.;Municipal Environmental Research Lab., Cincinnati, Ohio.|
|Publisher||Environmental Protection Agency, Office of Research and Development, Municipal Environmental Research Laboratory ; For sale by the National Technical Information Service,|
|Report Number||EPA/600/2-78/081; EPA-68-03-2190|
|Stock Number||PB-284 927|
|Additional Subjects||Detoxification ; Dyes ; Microwaves ; Waste disposal ; Pyrotechnics ; Hazardous materials ; Plasmas(Physics) ; Design criteria ; Decomposition ; Organic compounds ; Polycyclic aromatic hydrocarbons ; Performance evaluation ; Navy red dye ; Liquid wastes|
|Collation||ix, 23 pages : illustrations ; 28 cm.|
The process of microwave plasma detoxification has been applied successfully to the destruction/disposal of a U.S. Navy red dye pyrotechnic smoke mixture. The mixture was added as a powder, a solvent solution, and a water slurry. Material balance for detoxification of the slurry indicated that less than 0.20 percent solids were found beyond the reaction zone, or 99.8+ percent conversion to gaseous products. Analysis by spectrophotometry in the visible region indicated little or no dye starting materials (less than 5 ppm) in the residue. Ultraviolet fluorescence, UV spectrophotometry, and gas chromotography/mass spectrometry indicated the presence of less than 2 ppm carcinogenic polyaromatic hydrocarbons (PAH). Since PAH has been found in air oxidation products derived from these materials, a significant advantage would appear to derive from the plasma process. During the study, several vacuum feed techniques were evaluated with a view toward their utilization in forthcoming pilot equipment tests. Especially with high solids slurries and solutions, where non-Newtonian flow can cause difficulties when gravity feed methods are used, it will be necessary to use positive displacement methods to obtain uniformity and reproducibility during the addition process.
Contract no. 68-03-2190. Issued June 1978. Includes bibliographical references (page 14). Microfiche.