In crop production, for example, examples include straw, beet leaves and cabbage leaves, pea and bean pods, etc.; in vinification, lees and argols; in the manufacture of olive oil, waste, such as oilseed cakes; and, in the case of animal production, hides, hair and the fur of dead game, and wax, manure and slurry.
Pri proizvodnji rastlinskih pridelkov so na primer stranski proizvodi slama, pesini in zeljni listi, luščine graha in fižola itd.; pri proizvodnji vina usedlina in vinski kamen; pri izdelavi oljčnega olja odpadki, kot so oljne pogače; ter pri živinoreji kože, dlaka in kožuhi ubite divjačine ter vosek, gnoj in gnojnica.