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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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A lab-scale Anaerobic Baffled Reactor (ABR) was applied to treat a primary sludge taken from a municipal wastewater treatment plant. In this experiment, acidogenic reaction was promoted by operating the ABR with short hydraulic retention time (HRT) to produce sufficient volatile fatty acids (VFA) instead of production of methane. The performance of ABR on the VFA production and total solids reduction was observed with different operating conditions with 2, 4, 6, and 8 days of HRT. Corresponding organic loading rates were 6.7, 3.4, 2.2, and $1.6kgCOD_{cr}/m^3{\cdot}day$. As HRT increased the removal rate of TCOD was also increased (82.5, 84.2, 96.9, and 95.9 % in average for HRT of 2, 4, 6, and 8 days, respectively) because the settlement of solids was enhanced in the baffle by the decrease of upflow velocity. At HRT of 2 days the average concentration of VFA in the effluent was measured at $1,306{\pm}552$ mgCOD/L corresponding to 107 % increment as compared to the VFA concentration in the influent. However, as HRT increased VFA concentraiotn was decreased to $143{\pm}552$ mgCOD/L at HRT of 8 days. The reduction rates of total solids were 12.2, 26.5, 24.8, and 43.0 % for HRT of 2, 4, 6, and 8 days. As HRT increased the hydrolysis of organic particulate matters in the reactor was enhanced due to the increasing of solids retention time in the baffle zone with low upflow velocity in long HRT condition. Consequently, we found that a primary sludge became a good source of VFA production by the application of ABR process with HRT less than 4 days and the 12-26 % of total solids reduction was expected at these conditions.
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참고문헌 (20)
참고문헌 신청
Akunn a, J. C / 2000 / Performance of a granular-bed anaerobic baffled reactor (GRABBR) treating whisky distillery wastewater / Bioresour. Technol 74:257~261
Andalib, M / 2011 / Simultaneous denitrification and methanogenesis (SDM): Review of two decades of research / Desalination 279:1~14
Barber, W.P / 1999 / The use of the anaerobic baffled reactor (ABR) for wastewater treatment: A review / Wat. Res 33(7):1559~1578
Barber, W.P / 2000 / Nitrogen removal in a modified anaerobic baffled reactor (ABR): 1, Denitrification / Wat. Res 34(9):2413~2422
Bodik, I / 2003 / Nitrogen removal in an anaerobic baffled reactor with aerobic post-treatment / Bioresour. Technol 86:79~84
Andalib, M / 2011 / Simultaneous denitrification and methanogenesis (SDM): Review of two decades of research / Desalination 279:1~14
Barber, W.P / 1999 / The use of the anaerobic baffled reactor (ABR) for wastewater treatment: A review / Wat. Res 33(7):1559~1578
Barber, W.P / 2000 / Nitrogen removal in a modified anaerobic baffled reactor (ABR): 1, Denitrification / Wat. Res 34(9):2413~2422
Bodik, I / 2003 / Nitrogen removal in an anaerobic baffled reactor with aerobic post-treatment / Bioresour. Technol 86:79~84
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