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The Korean Society for Biotechnology and Bioengineering (한국생물공학회)
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Development of Microbe Carrier for Bioremediation of Zn, As by using Desulfovibrio Desulfuricans and Zeolite in Artificial Sea Water

Desulfovibrio Desulfuricans과 제올라이트를 이용한 해양 내의 Zn, As 제거용 미생물 담체 개발

  • Kim, In Hwa (Department of Chemical & Biomolecular Engineering, Sogang University) ;
  • Choi, Jin-Ha (Department of Chemical & Biomolecular Engineering, Sogang University) ;
  • Joo, Jeong Ock (Interdisciplinary Program of Integrated Biotechnology, Sogang University) ;
  • Oh, Byung-Keun (Department of Chemical & Biomolecular Engineering, Sogang University)
  • 김인화 (서강대학교 화공생명공학과) ;
  • 최진하 (서강대학교 화공생명공학과) ;
  • 주정옥 (서강대학교 바이오융합기술) ;
  • 오병근 (서강대학교 화공생명공학과)
  • Received : 2015.04.27
  • Accepted : 2015.06.05
  • Published : 2015.06.27
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Abstract

In this study, we have developed a microbe-carrier that combined Desulfovibrio desulfuricans and zeolite for removal of Zn and As in contaminated seawater. Desulfovibrio desulfuricans, one of the sulfate-reducing bacteria (SRB) microorganism was exhibited stable growth characteristics in highly salted water and strong resistance to Zn and As contaminated seawater. Moreover, zeolites are one of the most useful carrier to remove heavy metals from wastewaters. The results showed that SRB immobilized zeolite carrier can enhance removal ratio of Zn and As. In addition, heavy metals tended to be better removed in medium at conditions of $37^{\circ}C$. In case of heavy metal concentration, they were effectively removed ranging from 50 to 100 ppm. These results show that SRB-zeolite carriers hold great potential to remove cationic heavy metal species from industrial wastewater in marine environment.

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