SYMSITES Klink 2023-07-05 2025-01-29 17:52:43 en-EN Preliminary treatment Any treatment operation that municipal waste materials undergo before submission to the recycling operation whereby these materials are reprocessed into products, materials or substances that are not waste. This includes checking, sorting and other preparatory operations to remove non-targeted materials and to ensure high-quality recycling 2025-03-07 09:14:33