한빛사논문
- 조회573
Do-Hyung Kim a,1, Han-Shin Kim b,1, Baek-Gyu Im a, Jeong-Hoon Park a
aSustainable Technology and Wellness R&D Group, Korea Institute of Industrial Technology (KITECH), Jeju, South Korea
bDivision of Biotechnology, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, Jeonbuk, South Korea
1Do-Hyoung Kim and Han-shin Kim contributed equally to this study and shared first authorship.
Corresponding author : Jeong-Hoon Park
Abstract
This study envisioned attaining the percipience of effective biohydrogen production from paper mill waste-activated sludge through low-temperature calcium peroxide-mediated bacterial pretreatment (TCP-BP). Floc dissociation with limited cell destruction was attained at a calcium peroxide dosage of 0.05 g/g suspended solids (SS) at 70 °C temperature. This TCP-BP method improves bacterial fragmentation, and very high SS solubilization was achieved at 42 h, with the solubilization and solid reduction of 18.6% and 14.1%, respectively. BP-only pretreatment shows lower solubilization efficiency of 9.4% than TCP-BP pretreatment due to the presence of flocs, which inhibit the enzymatic action during bacterial fragmentation. A biohydrogen test shows a high biohydrogen potential of 94.1 mL H2/gCOD for the TCP-BP sample, which is higher than that of the BP-only and control samples. According to the findings, low-temperature calcium peroxide-mediated bacterial fragmentation is validated to be an efficient process for sludge degradation and biohydrogen production.
논문정보
- Research article
- 2023년 07월 (BRIC 등록일 2023-08-03)
- 국내 연구진
- 생명과학 > 분류/생태/환경생물학
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