| English | Catalan |
| sorting at source The classification and separation of solid waste, according to type, at the location where it is generated | separació en origen |
| waste sorting Separating waste into different materials, such as glass, metal, paper, plastic, etc. | classificació de residus |
| waste sorting unit Centralized recycling centres to which waste materials are brought and where they are separated | unitat de classificació de residus |