TY - GEN
T1 - Effect of unionized volatile acid on acidogenic performance in anaerobic solid-state organic waste degradation
AU - Gan, J.
AU - Jiang, W. Z.
AU - Kitamura, Y.
AU - Li, B.
AU - Zhen, A.
PY - 2005
Y1 - 2005
N2 - Acidogenesis affect on not only methanogenic but also acidogenic and hydrolysis phases in the overall anaerobic process of solid-state organic waste. A batch experiment was conducted to evaluate the influence of unionized volatile acid (UVA) on acidogenesis and hydrolysis of high-solids organic waste. The temperature regime was mesophilic with a 20 day solid retention time. The reactor set-up was a rotational drum fermentation system (RDFS) consisting of 4 fermentors and using soybean meal as a substrate. Results showed that UVA inhibited strongly on the VA increasing ratios, spectra, VS degradation ratios, and the surface based hydrolysis constant with increasing initially added UVA concentration (0, 10, 20, 30 g/L). Results suggested that VA, particularly UVA, strongly inhibited hydrolysis and acidogenesis during anaerobic solid-state substrate degradation.
AB - Acidogenesis affect on not only methanogenic but also acidogenic and hydrolysis phases in the overall anaerobic process of solid-state organic waste. A batch experiment was conducted to evaluate the influence of unionized volatile acid (UVA) on acidogenesis and hydrolysis of high-solids organic waste. The temperature regime was mesophilic with a 20 day solid retention time. The reactor set-up was a rotational drum fermentation system (RDFS) consisting of 4 fermentors and using soybean meal as a substrate. Results showed that UVA inhibited strongly on the VA increasing ratios, spectra, VS degradation ratios, and the surface based hydrolysis constant with increasing initially added UVA concentration (0, 10, 20, 30 g/L). Results suggested that VA, particularly UVA, strongly inhibited hydrolysis and acidogenesis during anaerobic solid-state substrate degradation.
KW - Inhibition of unionized volatile acid
KW - Particle size distribution
KW - Surface based hydrolysis constant
KW - VA spectrum
KW - Volatile solid degradation ratio
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M3 - Conference contribution
AN - SCOPUS:33645026760
SN - 1892769484
T3 - Livestock Environment VII - Proceedings of the Seventh International Symposium
SP - 465
EP - 471
BT - Livestock Environment VII - Proceedings of the Seventh International Symposium
A2 - Briggs, M.J.
A2 - McCormick, M.E.
T2 - Livestock Environment VII - 7th International Symposium
Y2 - 20 October 2004 through 22 October 2004
ER -