Nomenclator CAEN

9001 Wastewater collection and treatment This class includes: - collection and transport of domestic wastewater from one or more users, as well as rainwater, through sewerage networks, sewers, tanks and other means of transport (vehicles of emptying etc); their treatment and removal; - wastewater treatment by physical, chemical and biological processes such as: dilution, separation, filtration, sedimentation, etc .; - maintenance and cleaning of collecting and drainage channels; - emptying and cleaning of septic tanks and reservoirs, gutters and sewers, maintenance of chemical toilets; - wastewater treatment in swimming pools and industry. This class excludes: - construction of sewerage systems, see 45.21; - clearing, unblocking the collecting channels, see 45.33; - treatment of polluted water, deep or surface, in combination with removal of environmental pollution, see 90.03