Record Display for the EPA National Library Catalog
RECORD NUMBER: 276 OF 514Main 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, | |||||||||||
Year Published | 1978 | |||||||||||
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 | |||||||||||
Holdings |
|
|||||||||||
Collation | ix, 23 pages : illustrations ; 28 cm. | |||||||||||
Abstract | 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. |
|||||||||||
Notes | Contract no. 68-03-2190. Issued June 1978. Includes bibliographical references (page 14). Microfiche. |