huile usagée (1) déchets (1) légume (1) itinéraire (1) substitution (1) élimination (1) pyrolyse (1) polluant (1) teneur en oxygène (1) oxygénation (1) matériau (1) eau douce (1) aliment (1) couleur (1) point (1) chrome (1) Food (1) Oxygen content (1) Water (1) Taste (1) Smell (1) Rivers (1) Pyrolysis (1) Process (Law) (1) Poor (1) Petroleum waste (1) Petroleum (1) Performance (1) Olive oil (1) Oils and fats (1)