Code

Description

RECYCLING AND RECOVERY

R1

Direct recovery of energy from waste

R2

Direct recovery of raw material from waste

R3

Regeneration or rejuvenation of waste (solvents, carbons, acids & alkalis)

R4

Recycling of organic substances

R5

Recycling of metals and metal compounds

R6

Recycling of other inorganic materials

Treatment (treatment not for the purposes of disposal)

T1

Biological treatment (e.g. biodegradation, composting, biogas generation)

T2

Physical treatment

T3

Chemical treatment

T4

Thermal treatment (incineration, pyrolysis, etc.)

Disposal

D1

Disposal of waste to land (e.g. specially engineered landfill)

D2

Disposal of waste to landfill (e.g. non-engineered landfill)

D3

Storage/disposal of waste in surface impoundments (e.g. placement of liquid or sludge discards into pits, ponds, lagoons etc.)

D4

Release of waste into water bodies (except seas/oceans)

D5

Permanent storage (stabilization, micro-encapsulation, macro-encapsulation)