title: Lab-scale phytotreatment of old landfill leachate using different energy crops.
abstract: Old landfill leachate was treated in lab-scale phytotreatment units using three oleaginous species: sunflower (H), soybean (S) and rapeseed (R). The specific objectives of this study were to identify the effects of plant species combinations with two different soil textures on the reduction of COD, total N (nitrogen) and total P (phosphorous); to identify the correlation between biomass growth and removal efficiency; to assess the potential of oily seeds for the production of biodiesel. The experimental test was carried out using 20L volume pots installed in a greenhouse under different leachate percentages in the feeding and subsequent COD, N and P loads. Significant removal efficiencies were achieved: COD (ɳ>80%), total N (ɳ>70%) and total P (ɳ>95%). Better performances were displayed by the clayey soil. Plants irrigated with leachate, when compared to control units fed only with water and nutrient solution (Hoagland solution), developed a larger plant mass. Sunflower was the best performing species.
authors.affiliation: Department of Industrial Engineering, University of Padova, via Lungargine Rovetta 8, 35127 Padova, Italy. Electronic address: mariacristina.lavagnolo@unipd.it.
authors.forename: Maria Cristina
authors.initials: MC
authors.lastname: Lavagnolo
authors.affiliation: DAFNAE, University of Padova, viale dell'Università 16, 35020 Legnaro, PD, Italy.
authors.forename: Mario
authors.initials: M
authors.lastname: Malagoli
authors.affiliation: Department of Industrial Engineering, University of Padova, via Lungargine Rovetta 8, 35127 Padova, Italy.
authors.forename: Francesco
authors.initials: F
authors.lastname: Garbo
authors.affiliation: Department of Industrial Engineering, University of Padova, via Lungargine Rovetta 8, 35127 Padova, Italy.
authors.forename: Alberto
authors.initials: A
authors.lastname: Pivato
authors.affiliation: Department of Industrial Engineering, University of Padova, via Lungargine Rovetta 8, 35127 Padova, Italy.
authors.forename: Raffaello
authors.initials: R
authors.lastname: Cossu
mesh_terms: D001673:Biodegradation, Environmental; D018556:Crops, Agricultural; D009584:Nitrogen; D010758:Phosphorus; D014865:Waste Disposal, Fluid / Q000379:methods*; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D014874:Water Pollutants, Chemical; D010758:Phosphorus; D009584:Nitrogen
keywords: Leachate; Oleaginous crops; Phytotreatment; Renewable energy