TY - JOUR
T1 - Effect of acidification percentage and volatile organic acids on the anaerobic biological process in simulated landfill bioreactors
AU - Wang, Junqin
AU - Shen, Dongsheng
AU - Xu, Yanhua
PY - 2006/7
Y1 - 2006/7
N2 - A landfill bioreactor with leachate circulation in situ and two-phase landfill bioreactor were introduced to investigate the effect of acidification percentage and volatile organic acids on the decomposition of municipal solid waste. The concentration of soluble chemical oxygen demand (SCOD), volatile organic acids (VOAs), acetic acid, propionic acid and butyric acid in leachate were regularly monitored, and the acidification percentages were also calculated. The changes of SCOD indicated that the anaerobic landfill bioreactor with leachate circulation in situ occurred two clear lag-phases, the first one about 60 days and the second from the 80th day, while the two-phase one had the significantly short first lag-phase, only about 7 days. It was also found that the concentration of VOAs and propionic acid could be used to indicate the first lag-phase and the second one, respectively. However, the percentage of acidification, which were similar for both lag-phase during the first 70 days, could only indicate the first lag-phase without showing the second lag-phase since the 80th day.
AB - A landfill bioreactor with leachate circulation in situ and two-phase landfill bioreactor were introduced to investigate the effect of acidification percentage and volatile organic acids on the decomposition of municipal solid waste. The concentration of soluble chemical oxygen demand (SCOD), volatile organic acids (VOAs), acetic acid, propionic acid and butyric acid in leachate were regularly monitored, and the acidification percentages were also calculated. The changes of SCOD indicated that the anaerobic landfill bioreactor with leachate circulation in situ occurred two clear lag-phases, the first one about 60 days and the second from the 80th day, while the two-phase one had the significantly short first lag-phase, only about 7 days. It was also found that the concentration of VOAs and propionic acid could be used to indicate the first lag-phase and the second one, respectively. However, the percentage of acidification, which were similar for both lag-phase during the first 70 days, could only indicate the first lag-phase without showing the second lag-phase since the 80th day.
KW - Acidification percentage
KW - Anaerobic digestion
KW - Landfill bioreactor
KW - Municipal solid waste
KW - Volatile organic acids
UR - http://www.scopus.com/inward/record.url?scp=33747438384&partnerID=8YFLogxK
U2 - 10.1016/j.procbio.2006.02.005
DO - 10.1016/j.procbio.2006.02.005
M3 - 文章
AN - SCOPUS:33747438384
SN - 1359-5113
VL - 41
SP - 1677
EP - 1681
JO - Process Biochemistry
JF - Process Biochemistry
IS - 7
ER -
