title: Identification and biotransformation of aliphatic hydrocarbons during co-composting of sewage sludge-Date Palm waste using Pyrolysis-GC/MS technique.
abstract: The behavior of aliphatic hydrocarbons during co-composting of sewage sludge activated with palm tree waste was studied for 6 months using Py-GC/MS. The main aliphatic compounds represented as doublet alkenes/alkanes can be classified into three groups. The first group consists of 11 alkenes (undecene, tridecene, pentadecene, hexadecene, heptadecene, octadecene, nonadecene, eicosene, uncosene, docosene, tricosene) and 15 alkanes (heptane, octane, nonane, decane, undecane, dodecane, tetradecane, pentadecane, heptadecane, octadecane, nonadecane, eicosane, uncosane, docosane, and tricosane), which remain stable during the co-composting process. The stability of these compounds is related to their recalcitrance behavior. The second group consists of five alkenes (heptene, octene, nonene, decene, dodecene) and tridecane as a single alkane that decreases during co-composting. The decrease in these compounds is the combined result of their metabolism and their conversion into other compounds. The third group is constituted with tetradecene and hexadecane that increase during composting, which could be explained by accumulation of these compounds, which are released by the partial breakdown of the substrate. As a result, these molecules are incorporated or adsorbed in the structure of humic substances.
authors.affiliation: Laboratoire Ecologie et Environnement (Unité associée au CNRST, URAC 32, Unité associée au CNERS), Faculté des Sciences Semlalia, Cadi Ayyad University, Marrakech, BP: 2390, Morocco. loubna.elfels@gmail.com.
authors.forename: Loubna
authors.initials: L
authors.lastname: El Fels
authors.affiliation: Université de Poitiers - CNRS, UMR 7285 (IC2MP), 4 rue Michel Brunet, Poitiers, 86073 Cedex 9, France.
authors.forename: Laurent
authors.initials: L
authors.lastname: Lemee
authors.affiliation: Université de Poitiers - CNRS, UMR 7285 (IC2MP), 4 rue Michel Brunet, Poitiers, 86073 Cedex 9, France.
authors.forename: André
authors.initials: A
authors.lastname: Ambles
authors.affiliation: Laboratoire Ecologie et Environnement (Unité associée au CNRST, URAC 32, Unité associée au CNERS), Faculté des Sciences Semlalia, Cadi Ayyad University, Marrakech, BP: 2390, Morocco.
authors.forename: Mohamed
authors.initials: M
authors.lastname: Hafidi
mesh_terms: D000383:Agriculture; D000473:Alkanes / Q000737:chemistry; D000475:Alkenes; D001711:Biotransformation; D006812:Humic Substances / Q000032:analysis; D006838:Hydrocarbons / Q000378:metabolism*; D007220:Industrial Waste; D065749:Phoeniceae; D012722:Sewage / Q000737:chemistry; D012987:Soil; D014865:Waste Disposal, Fluid / Q000379:methods*; D062065:Wastewater / Q000737:chemistry / Q000382:microbiology
chemical_list: D000473:Alkanes; D000475:Alkenes; D006812:Humic Substances; D006838:Hydrocarbons; D007220:Industrial Waste; D012722:Sewage; D012987:Soil; D062065:Wastewater; C024713:n-tetradecane; C007548:n-dodecane; C033245:pentadecane; C050821:eicosane; C028691:1-tridecene; C094074:tridecane; C007932:n-hexadecane; C016486:heptadecane; C022884:undecane; C022883:octadecane; C012867:decane; C061580:nonadecane; C470023:docosane; C017573:nonane
keywords: Aliphatics hydrocarbons; Alkanes; Alkenes; Co-composting; Compost maturity