This sub-class includes the treatment prior to disposal and other treatment of hazardous and non-hazardous waste, the disposal of waste, and remediation activities. The waste may be in solid or non-solid form. Units in this sub-class are primarily engaged in: •operation of landfills for disposal of waste •storage of captured carbon dioxide •disposal of waste by combustion or incineration or other methods, with or without the resulting production of electricity or steam, substitute fuels, biogas, ashes or other by-products for further use, etc. •treatment of organic waste for disposal, landfilling or permanent storage •disposal of used goods such as refrigerators to eliminate harmful waste •remediation activities like: - decontamination of soils and groundwater at the place of pollution, either in situ or ex situ, using e.g., mechanical, chemical or biological methods - decontamination and cleaning up of surface water following accidental pollution - decontamination of industrial plants or sites, including nuclear plants and sites - cleaning up of oil spills and other pollutions on land, in surface water, in ocean and seas, including coastal areas and other specialised pollution-control activities •production of compost from organic waste •permanent underground storage of waste in a deep geological cavity such as a salt or potassium mine •operation of facilities for treatment of hazardous waste •treatment and disposal of toxic live or dead animals and/or other contaminated waste •treatment, disposal and storage of radioactive nuclear waste including: - treatment and disposal of transition radioactive waste, i.e., decaying within the period of transport, from hospitals - encapsulation, preparation and other treatment of nuclear waste for storage •asbestos, lead paint, and other toxic material abatement •clearing of landmines, including detonation at the site •other specialized pollution-control activities •site remediation containment, control and monitoring services