| 학회 |
한국화학공학회 |
| 학술대회 |
2018년 봄 (04/25 ~ 04/27, 창원컨벤션센터) |
| 권호 |
24권 1호, p.665 |
| 발표분야 |
재료 |
| 제목 |
Yeast based MFC: strategies and mechanisms to improve performances by optimization of anodic environment |
| 초록 |
To better exploit yeast S. Cerevisiae biocatalyst three modifications are studied and compared. Depending on pH, the PEI treatment can effectively modify physical/chemical properties of pristine felt because MPD is doubled from 123 to 256 mW•m-2. The biocatalyst is better attached to the anode. However yeast tends to stand as floating cell rather than entrapped. Mixed strategy with CF-PEI to attach yeast and mediators to extract electrons from floating cells, was investigated and mechanism suggested. The mediator selection is critical because compatibility is not obvious. Methylene Blue (MB) was tested against Methyl Red (MR) and results revealed that MPD of mediatorless system is still 254 mW•m-2 but when MB is added the MPD raises to 430 mW•m-2 whereas 283 mW•m-2 is achieved with MR. MR is not compatible and is degraded by a side reaction. Mixed strategy with MB/PEI increases adhesion and transfer from floating and attached cells. MB can be absorbed by yeast without consequences. By using the Response Surface Methodology (RSM), the optimal parameters are predicted. |
| 저자 |
도메니코 프라띠니1, 크리스트와르다나 마셀리너스1, Razia Accardo2, 윤성필2, 권용재1
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| 소속 |
1서울과학기술대, 2한국과학기술(연) |
| 키워드 |
화공소재 전반 |
| E-Mail |
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| 원문파일 |
초록 보기 |
