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논문 기본 정보

자료유형
학술저널
저자정보
Pratin Kullavanijaya (King Mongkut’s University of Technology Thonburi) Pattama Thongduang (King Mongkut’s University of Technology Thonburi) Nimaradee Boonapatcharoen (King Mongkut’s University of Technology Thonburi) Chalisa Veesommai Sillberg (Kasetsart University)
저널정보
대한환경공학회 Environmental Engineering Research Environmental Engineering Research 제27권 제4호
발행연도
2022.8
수록면
70 - 80 (11page)

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초록· 키워드

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Inoculum is a crucial factor influencing the success of an anaerobic digester start-up. This study evaluated the efficacy of aerobic waste activated sludge (WAS) to start-up anaerobic hybrid reactors (AHR) treating cassava wastewater. The start-up performance and stability of five 6.2 L AHRs inoculated differently by WAS (AHR1) and WAS co-inoculated with pig manure (AHR2), cow dung (AHR3), chicken manure (AHR4), and anaerobic pond sludge (AHR5) were investigated. The results depicted the potential of WAS as starter seed for AHR"s start-up. This sludge contained methanogenic populations, mainly Methanomicrobials, Methanosarcinales, and Thermoplasmatales, for 1.5 × 107 MPN/g VS compared to 4.0 × 10³-6.0 × 10<SUP>7</SUP> MPN/g VS in manures and anaerobic sludge. Co-inoculation of WAS with cow dung (AHR3) and anaerobic sludge (AHR5) promoted a rapid start-up, achieved 4.0 kg COD/m³.d within 1.5-1.7 months, while about 2.5-3.3 months needed for the others. A satisfying performance, stability, microbial development and activity, depicted as high COD removal (COD<SUB>rem</SUB>) efficiency and methane productivity, were achieved in all digesters. About 0.32 and 0.21 m³/kg COD<SUB>rem</SUB> for biogas and methane yielded in AHR1, whereas 0.41-0.49 m³-biogas/kg COD<SUB>rem</SUB> and 0.25-0.32 m³-CH₄/kg COD<SUB>rem</SUB> obtained in other reactors. This finding confirmed that inoculum"s quality is critical for productive gas productivity and system stability maintenance.

목차

ABSTRACT
1. Introduction
2. Materials and Methods
3. Results and Discussion
4. Conclusions
References

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