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Class Information
Number: 588
Name: Hazardous or toxic waste destruction or containment >
Description: This is the generic class for (1) hazardous or toxic waste destruction by any means to include, heating, chemical action, or the interaction with any form of radiation; (2) permanent containment of hazardous or toxic waste by methods to include storage in a simple container, solidification, vitrification, cementation, and more elaborate methods of storage such as marine, tetonic, or extraterrestrial storage; (3) hazardous or toxic waste conversion by any means (e.g., chemical, physical, etc.) to an environmentally safe substance; and (4) preparation for destruction or containment as well as the actual destruction or containment.










Class Number Class Name No. of Patents
588/900

Apparatus

316
588/901

Compositions

165
588/249

Containment

244
588/249.5

Chemical or germ warfare agents, or pathogenic organisms (e.g., sarin, vx, anthrax, virus, bacteria and medical waste, etc.)

68
588/250

Geologic, marine, or extraterrestrial storage and containment (e.g., tectonic, volcanic, deep natural, manmade earth cavity, submarine placement sites, lunar, earth orbital, and solar placement, etc.)

111
588/259

Secondary containment

113
588/252

Solidification, vitrification, or cementation

366
588/254

Contains asbestos

33
588/253

In situ vitrification

30
588/255

Polymer or resin containing (e.g., foam, etc.)

89
588/256

Waste contains heavy metal (e.g., fly, ash, flue dust, and incinerator ash)

332
588/257

And confined in a cement type material (e.g., concrete)

169
588/251

Treating a solid (e.g., clay, slag, spent sorbent, active carbon, etc.) to prevent gas emissions

39
588/260

With sensing, detecting, or monitoring

67
588/1

Destruction or containment of radioactive waste

134
588/2

By fixation in stable solid media

66
588/5

Bituminous

40
588/3

Cement, concrete, or hydraulic setting

108
588/4

With additional solid material to enhance fixation of radioactivity

51
588/10

Ceramic or ceramiclike

53
588/11

Glass, glasslike, vitreous

128
588/12

Boron containing

45
588/9

Clay or claylike

43
588/13

Ion exchange material

35
588/15

Metal containing

104
588/6

Resin or polymer; e.g., cellulose, polyethylene

54
588/7

Ion exchange resin

28
588/8

Polymer derived from ethylenically unsaturated monomer

46
588/14

Silicon containing

82
588/18

Chemical conversion to a stable solid for disposal

111
588/19

Incineration, calcination, pyrolyzing to obtain solid residue

59
588/17

Geological or extraterrestrial

62
588/16

Surrounding with specified material or structure

185
588/20

Treating radioactive liquid

188
588/299

Germ warfare agents destroyed

23
588/261

Miscellaneous

34
588/300

Processes for making harmful chemical substances harmless, or less harmful, by effecting a chemical change in the substances (epo/ jpo)

42
588/321

By heating to effect chemical change. e.g., pyrolysis (epo/jpo)

85
588/312

By hydropyrolysis or destructive steam gasification, e.g., using water and heat or supercritical water, to effect chemical change (epo/jpo)

35
588/313

By reacting with chemical agents (epo/jpo)

145
588/315

By chemical fixing the harmful substance, e.g., by chelation or complexation (epo/jpo)

76
588/317

By hydrolysis (epo/jpo)

121
588/320

By oxidation; by combustion (epo/jpo)

534
588/319

By reduction, e.g., hydrogenation (epo/jpo)

146
588/314

By treatment in molten chemical reagent, e.g., salts or metals (epo/jpo)

99
588/316

Dehalogenation using reactive chemical agents able to degrade (epo/jpo)

400
588/318

Detoxification by using acid or alkaline reagents (epo/jpo)

314
588/301

By subjecting to electric or wave energy or particle or ionizing radiation (epo/ jpo)

22
588/302

Electrochemical processes, e.g., electrodialysis (epo/jpo)

33
588/303

Electrolytic degradation or conversion (epo/jpo)

66
588/306

Electromagnetic radiation, e.g., laser (epo/ jpo)

37
588/307

Gamma rays (about 0.003nm-0.03nm) (epo/jpo)

7
588/310

Microwave radiations (about 0.3cm-30cm) (epo/jpo)

32
588/309

Ultraviolet radiations (about 3nm-400nm) (epo/jpo)

41
588/308

X-rays (about 0.03mn-3nm) (epo/jpo)

4
588/305

Particle radiation, e.g., electron beam radiation (epo/jpo)

13
588/311

Plasma (epo/jpo)

87
588/304

Sonic energy (epo/jpo)

15
588/400

Harmful chemical substances made harmless, or less harmful, by effecting chemical change (epo/jpo)

48
588/401

Chemical warfare substances, e.g., cholinesterase inhibitor (epo/jpo)

107
588/403

Explosives, propellants or pyrotechnics, e.g., rocket fuel, napalm (epo/jpo)

110
588/410

Inorganic substances (epo/jpo)

100
588/415

Containing halogen (epo/jpo)

30
588/412

Containing heavy metals, in the bonded or free state (epo/jpo)

195
588/413

Containing nitrogen phosphorus (epo/jpo)

76
588/414

Containing oxygen, sulfur, selenium or tellurium, i.e., chalcogen (epo/jpo)

47
588/411

Inorganic fibers, e.g., asbestos (epo/jpo)

21
588/405

Organic substances (epo/jpo)

402
588/406

Containing halogen (epo/jpo)

596
588/407

Containing heavy metals (epo/jpo)

181
588/408

Containing nitrogen or phosphorus (epo/jpo)

302
588/409

Containing oxygen, sulfur, selenium or tellurium, i.e., chalcogen (epo/jpo)

308
588/402

Pesticides, e.g., insecticides, herbicides, fungicides, nematicides (epo/jpo)

59
588/404

Toxic combustion residues, e.g., toxic substances contained in fly ash from waste incineration (epo/jpo)

77
 
 
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