ethanol using organic waste (produksi etanol dengan menggunakan limbah organik)
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Ethanol Production Using Organic Waste
Daewon Pak, Jun Cheol Lee, Jae Hyung Kim
Graduate School of Energy and EnvironmentSeoul National University of Technology
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Research Background
Bioethanol in Korea
3 - 5% ethanol blends 3 - 5% ethanol blends
High oil priceHigh oil price
Reduce global warming gasReduce global warming gas
3 - 5% ethanol blends with gasoline (E3 and E5)
3 - 5% ethanol blends with gasoline (E3 and E5)
Renewable energy(5% of total energy in 2011)
Renewable energy(5% of total energy in 2011)
Low bioenergy share(5.3% of renewable energy
in 08)
Low bioenergy share(5.3% of renewable energy
in 08)
-
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Food waste production Food waste production (ton/day)
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pH 6DOLQLW\Alkalinity(mg/L)
Volatile solid(g/L)
Total solid(g/L)
SCOD(g/L)
TCOD(g/L)
4.5 4.8 0.1 0.3 130 - 138 163 - 190 62 - 98 150 - 180
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time (hr)
control 0.36g(about 28.8 FBGU) 1.8g(about 144 FBGU) 3.6g(about 288 FBGU) 18g(about 1440 FBGU) 36g(about 2880 FBGU)
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DosageEnzyme Control 0.1% 0.5% 1.0% 5.0% 10.0%
Glucoamylase(Spirizyme) 0.003 0.241 0.314 0.384 0.414 0.436(Spirizyme) 0.003 0.241 0.314 0.384 0.414 0.436
Carbohydrase (Viscozyme L) 0.003 0.379 0.481 0.495 0.522 0.627
Unit: g glucose/g total solids
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NaCl 3% NaCl 5% NaCl 10% NaCl 15%
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Saccharification
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Microbes
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time (hr)
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Saccharification &Ethanol Fermentation
Food wastes
Ethanol
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