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Biological Hydrogen Production from Mixed Waste in a Polyurethane Foam-sequencing Batch Reactor
Biological Hydrogen Production from Mixed Waste in a Polyurethane Foam-sequencing Batch Reactor
Microbiology and Biotechnology Letters. 2014. Jul, 42(3): 307-311
Copyright © 2014, The Korean Society for Microbiology and Biotechnology
  • Received : April 01, 2014
  • Accepted : July 14, 2014
  • Published : July 30, 2014
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About the Authors
정열 이
대현 위
경숙 조
kscho@ewha.ac.kr

Abstract
폴리우레탄 담체가 혼합폐기물을 이용한 연속식수소생산에 미치는 영향을 조사하였다. 당밀폐수와 하수슬러지를 혼합하여 연속 회분식 공정에서 발효시켰다. 담체를 넣지 않고 12 h의 수리학적 체류시간으로 운전하였을 때, 대부분의 바이오매스가 외부로 유실된 반면, 담체를 반응조에 투입하였을 때에는 미생물 유실이 현저히 저감하였다. 또한, 담체를 이용한 경우, 수소생산속도 0.4 L-H 2 L −1 d −1 로 높게 나타났다. 반응조 내 부유 바이오매스에 의한 비수소생산속도가 241 ± 4 ml-H 2 g-VSS −1 d −1 로서 담체 표면 부착바이오매스(133 ± 10 ml-H 2 g-VSS −1 d −1 ) 및 담체 내부 부착 바이오매스에 의한 값(95 ± 14 ml-H 2 g-VSS −1 d −1 )보다 높게 나타났다.
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요 약
폴리우레탄 담체가 혼합폐기물을 이용한 연속식수소생산에 미치는 영향을 조사하였다. 당밀폐수와 하수슬러지를 혼합하여 연속 회분식 공정에서 발효시켰다. 담체를 넣지 않고 12 h의 수리학적 체류시간으로 운전하였을 때, 대부분의 바이오매스가 외부로 유실된 반면, 담체를 반응조에 투입하였을 때에는 미생물 유실이 현저히 저감하였다. 또한, 담체를 이용한 경우, 수소생산속도 0.4 L-H 2 L −1 d −1 로 높게 나타났다. 반응조 내 부유 바이오매스에 의한 비수소생산속도가 241 ± 4 ml-H 2 g-VSS −1 d −1 로서 담체 표면 부착바이오매스 (133 ± 10 ml-H2 g-VSS−1 d−1) 및 담체 내부 부착 바이오매스에 의한 값(95 ± 14 ml-H 2 g-VSS −1 d −1 )보다 높게 나타났다.
Acknowledgements
This study was supported by a National Research Foundation of Korea (NRF) grant funded by the Korean Government (MISP) (No. NRF-2012R1A2A2A03046724).
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