| Subject | Norwegian Bokmål | English |
| environ. | avløp fra avfallsbehandling | waste treatment effluent Partially or completely treated water or waste water flowing out of a waste treatment plant |
| environ. | biologisk avfallsbehandling | biological waste treatment A generic term applied to processes that use microorganisms to decompose organic wastes either into water, carbon dioxide, and simple inorganic substances, such as aldehydes and acids. The purpose of biological waste treatment is to control either the environment for microorganisms so that their growth and activity are enhanced, and to provide a means for maintaining high concentrations of the microorganisms in contact with the wastes |
| environ. | kjemisk avfallsbehandling | chemical treatment of waste |