Maria Cristina Lavagnolo1, Mario Malagoli2, Francesco Garbo3, Alberto Pivato3, Raffaello Cossu3. 1. Department of Industrial Engineering, University of Padova, via Lungargine Rovetta 8, 35127 Padova, Italy. Electronic address: mariacristina.lavagnolo@unipd.it. 2. DAFNAE, University of Padova, viale dell'Università 16, 35020 Legnaro, PD, Italy. 3. Department of Industrial Engineering, University of Padova, via Lungargine Rovetta 8, 35127 Padova, Italy.
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.
Old landfill leachate was treated in lab-scale phytotreatment units using three oleaginous species: pan class="Species">sunflower (H), pan class="Species">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: Alberto Pivato; Francesco Garbo; Marco Moretto; Maria Cristina Lavagnolo Journal: Environ Sci Pollut Res Int Date: 2018-02-09 Impact factor: 4.223
Authors: Francisco H Nunes Junior; Valdineia S Freitas; Rosilene O Mesquita; Brennda B Braga; Rifandreo M Barbosa; Kaio Martins; Franklin A Gondim Journal: Environ Sci Pollut Res Int Date: 2017-09-06 Impact factor: 4.223