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http://dx.doi.org/10.5658/WOOD.2011.39.6.459

Effect of Treatment Amounts of Slurry Composting and Biofiltration Liquid Fertilizer on Growth Characteristics and Bioethanol Production of Yellow Poplar  

Kim, Ho-Yong (Department of Forest Sciences, Seoul National University)
Gwak, Ki-Seob (Department of Forest Sciences, Seoul National University)
Kim, Hye-Yun (Department of Forest Sciences, Seoul National University)
Ryu, Keun-Ok (Korea Forest Research Institute)
Kim, Pan-Gi (Department of Forest Resources and Environment, Kyungpook National University)
Cho, Do-Hyun (Korea Forest Research Institute)
Choi, Jin-Yong (Department of Landscape Architecture and Rural System Engineering, Seoul National University)
Choi, In-Gyu (Department of Forest Sciences, Seoul National University)
Publication Information
Journal of the Korean Wood Science and Technology / v.39, no.6, 2011 , pp. 459-468 More about this Journal
Abstract
The main purpose of this study was to examine the influence of treatment amounts of Slurry Composting and Biofiltration liquid fertilizer (SCBLF) on biomass growth of Yellow poplar (Liriodendron tulipifera) and to compare bioethanol production from the harvested wood. Relative growth rate, biomass production and leaf characteristics were significantly enhanced by SCBLF treatment and medium treatment plot showed highest value. Nitrogen compounds and water content in SCBLF affected to increase chlorophyll contents which led improving biomass production (64.67%) and glucose contents (6.07%) than control. Organosolv and dilute acid pretreatments were preliminarily carried for bioethanol production, and the pretreatment processes were conducted at all the same solid to liquid ratio (1 : 10), reaction temperature ($150^{\circ}C$), preheating time (40 min) and residence time (10 min). The water insoluble solid recovery of Organosolv pretreatment with 1% sulfuric acid as a catalyst was the lowest and that of medium treatment plot was 44.81%. Exchangeable cations in SCBLF might be affected to increase pretreatment effect. The simultaneous saccharification and fermentation process was followed to determine the ethanol production of the pretreated biomass. The highest ethanol production yield based on initial weight was obtained from high treatment plotby Organosolv pretreatment with 1% sulfuric acid (16.11%). But regarding biomass production, medium treatment plot produced most, and bioethanol production was increased by 72.93% than control.
Keywords
slurry composting and biofiltration; yellow poplar (Liriodendron tulipifera); growth characteristics; organosolv pretreatment; bioethanol production;
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