| Subject | English | Portuguese |
| environ. | bleaching process | processo de branqueamento |
| environ. | bleaching process 1. Removing colored components from a textile. Common bleaches are hydrogen peroxide, sodium hypochloride, and sodium chlorite. 2. The brightening and delignification of pulp by the addition of oxidizing chemicals such as chlorine or reducing chemicals such as sodium hypochloride | processo de branqueamento |
| environ. | bleaching sludges from hypochlorite and chlorine processes | lamas de branqueamento provenientes dos processos ao hipoclorito e ao cloro |
| environ. | bleaching sludges from other bleaching processes | lamas de branqueamento provenientes de outros processos de branqueamento |