US Patent Class 588
HAZARDOUS OR TOXIC WASTE DESTRUCTION OR CONTAINMENT



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Current as of: June, 1999
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  DF  CLASS NOTES
1  DF  DESTRUCTION OR CONTAINMENT OF RADIOACTIVE WASTE
2  DF  .~ By fixation in stable solid media
3  DF  .~.~ Cement, concrete, or hydraulic setting
4  DF  .~.~.~ With additional solid material to enhance fixation of radioactivity
5  DF  .~.~ Bituminous
6  DF  .~.~ Resin or polymer; e.g., cellulose, polyethylene
7  DF  .~.~.~ Ion exchange resin
8  DF  .~.~.~ Polymer derived from ethylenically unsaturated monomer
9  DF  .~.~ Clay or claylike
10  DF  .~.~ Ceramic or ceramiclike
11  DF  .~.~.~ Glass, glasslike, vitreous
12  DF  .~.~.~.~ Boron containing
13  DF  .~.~ Ion exchange material
14  DF  .~.~ Silicon containing
15  DF  .~.~ Metal containing
16  DF  .~ Surrounding with specified material or structure
17  DF  .~ Geological or extraterrestrial
18  DF  .~ Chemical conversion to a stable solid for disposal
19  DF  .~.~ Incineration, calcination, pyrolyzing to obtain solid residue
20  DF  .~ Treating radioactive liquid
200  DF  CHEMICAL OR GERM WARFARE AGENTS DESTROYED
201  DF  MOLTEN MEDIA USED (E.G., METAL)
202  DF  EXPLOSIVES, PROPELLANTS, OR PYROTECHNICS DESTROYED
203  DF  .~ Using added reactive material (e.g., acids bases, hydrogen, etc.)
204  DF  ELECTRODIALYSIS OR ELECTROLYTIC DEGRADATION OR CONVERSION
205  DF  ORGANIC SUBSTANCE DESTROYED
206  DF  .~ Halogen attached directly to carbon by nonionic bonding
207  DF  .~.~ Halogen attached directly to benzene ring by nonionic bonding (e.g., PCB's)
208  DF  .~.~.~ Hydropyrolysis or destructive steam gasification
209  DF  .~.~.~ Heating or vacuum used to drive off or produce a volatile substance
210  DF  .~.~.~ Using ionizing radiation, electrical energy, magnetic force, radiation, or sonic energy (e.g., laser, plasma, microwave, or ultrasonic)
211  DF  .~.~.~.~ Using a gaseous heat carrier
212  DF  .~.~ Using ionizing radiation, electrical energy, magnetic force, radiaiton, or sonic energy (e.g., laser, plasma, microwave, or ultrasonic)
213  DF  .~.~ Heating or vacuum used to drive off or produce a volatile substance (e.g., hydropyrolysis or destructive steam gasification)
214  DF  .~.~.~ Using a gaseous heat carrier
215  DF  .~ Chalcogen containing (O, S, Se, or Te)
216  DF  .~.~ Heating or vacuum used to drive off or produce a volatile substance
217  DF  .~.~.~ Using a gaseous heat carrier
218  DF  .~.~ Reacting with chemical agents
219  DF  .~.~.~ Using ionizing radiation, electrical energy, magnetic force, radiation, or sonic energy (e.g., laser, plasma, microwave, or ultrasonic)
220  DF  .~ Heating or vacuum used to drive off or produce a volatile substance from waste containing N, P, As, Sb, or Bi
221  DF  .~ Reacting waste containing N, P, As, Sb, or Bi with chemical agents
222  DF  .~.~ Using ionizing radiation, electrical energy, magnetic force, radiation, or sonic energy (e.g., laser, plasma, microwave, or ultrasonic)
223  DF  .~ Metal containing
224  DF  .~.~ Reacting with chemical agents
225  DF  .~.~.~ Using ionizing radiation, electrical energy, magnetic force, radiation, or sonic energy (e.g., laser, plasma, microwave, or ultrasonic)
226  DF  .~ Hydropyrolysis or destructive steam gasification
227  DF  .~ Using ionizing radiation, electrical energy, magnetic force, radiation, or sonic energy (e.g., laser, plasma, microwave, or ultrasonic)
228  DF  .~ Heating or vacuum used to drive off or produce a volatile substance
229  DF  .~.~ Using a solid heat carrier
230  DF  .~.~ Using a gaseous heat carrier
231  DF  HEAVY METAL CONTAINING SUBSTANCE DESTROYED
232  DF  .~ Magnetic separation
233  DF  .~ Hydropyrolysis or destructive steam gasification
234  DF  .~ Heating or vacuum used to drive off or produce a volatile substance
235  DF  .~.~ Using a gaseous heat carrier
236  DF  .~ Reacting with chemical agents
237  DF  .~.~ Using ionizing radiation, electrical energy, magnetic force, radiation, or sonic energy (e.g., laser, plasma, microwave, or ultrasonic)
238  DF  CHALCOGEN CONTAINING SUBSTANCE DESTROYED (O, S, Se, or Te)
239  DF  .~ Hydropyrolysis or destructive steam gasification
240  DF  .~ Heating or vacuum used to drive off or produce a volatile substance
241  DF  .~.~ Using a gaseous heat carrier
242  DF  .~ Reacting with chemical agents
243  DF  .~.~ Using ionizing radiation, electrical energy, magnetic force, radiation, or sonic energy (e.g., laser, plasma, microwave, or ultrasonic)
244  DF  N OR P CONTAINING SUBSTANCE DESTROYED
245  DF  .~ Heating or vacuum used to drive off or produce a volatile substance
246  DF  .~ Reacting with chemical agents
247  DF  .~.~ Using ionizing radiation, electrical energy, magnetic force, radiation, or sonic energy (e.g., laser, plasma, microwave, and ultrasonic)
248  DF  HALIDE CONTAINING SUBSTANCE DESTROYED
249  DF  CONTAINMENT
250  DF  .~ Geologic marine or extraterrestial storage and containment (e.g., tetonic, volcanic, deep natural, manmade earth cavity, submarine placement sites, lunar, earth orbital, and solar placement)
251  DF  .~ Treating a solid (e.g., clay, slag, spent sorbent, active carbon, etc.) to prevent gas emissions
252  DF  .~ Solidification, vitrification, or cementation
253  DF  .~.~ In situ vitrification
254  DF  .~.~ Contains asbestos
255  DF  .~.~ Polymer or resin containing (e.g., foam, etc.)
256  DF  .~.~ Waste contains heavy metal (e.g., fly, ash, flue dust, and incinerator ash)
257  DF  .~.~.~ And confined in a cement type material (e.g., concrete)
258  DF  .~ Storage to contain pathogenic organisms (e.g., virus, bacteria, and medical waste)
259  DF  .~ Secondary containment
260  DF  .~ With sensing, detecting, or monitoring
261  DF  MISCELLANEOUS
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CROSS-REFERENCE ART COLLECTIONS
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900  DF  APPARATUS
901  DF  COMPOSITIONS