KSBB Journal

The Korean Society for Biotechnology and Bioengineering (한국생물공학회)
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Ethanol Production from Red, Brown and Green Seaweeds and Biosorption of Heavy Metals by Waste Seaweed Slurry from Ethanol Production

홍조류, 갈조류, 녹조류를 이용한 바이오에탄올 생산 및 폐 해조류 슬러리의 중금속 생물흡착

  • Sunwoo, InYung (Department of Bioengineering, Pukyong National University) ;
  • Ra, ChaeHun (Department of Bioengineering, Pukyong National University) ;
  • Kwon, SeongJin (Department of Bioengineering, Pukyong National University) ;
  • Heo, JiHee (Department of Bioengineering, Pukyong National University) ;
  • Kim, Ye-Jin (Saint Mary's Girls' High School) ;
  • Kim, JiWoo (Saint Mary's Girls' High School) ;
  • Shin, JiHo (Saint Mary's Girls' High School) ;
  • Ahn, En-Ju (Saint Mary's Girls' High School) ;
  • Cho, YuKyeong (Busan Technopark Marine Bioindustry Development Center) ;
  • Kim, Sung-Koo (Department of Bioengineering, Pukyong National University)
  • Received : 2014.09.25
  • Accepted : 2014.11.18
  • Published : 2014.12.30
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Abstract

The seaweeds with high carbohydrate ratio Gelidium amansii, Saccharina japonica and Enteromorpha intestinalis were used as red, brown, and green seaweeds, respectively. Thermal acid hydrolysis, enzymatic saccharification and fermentation were carried out using those seaweeds to produce ethanol. The ethanol concentrations from red, brown and green seaweed were 14.8 g/L, 11.6 g/L and 9.9 g/L, respectively. After the production of ethanol, the seaweeds were reused to absorb heavy metal. The maximum biosorption ratio was Cu(II) (89.6%), Cr(III) (82.9%), Ni(II) (66.1%). Cu(II) had the highest affinity with 3 waste seaweeds. Red seaweed was verified the most effective substrates to both process.

Keywords

References

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