TY - JOUR
T1 - Impact of UASB start-up and different HRT on treatment effect of old landfill leachate
AU - Liu, Zixu
AU - Sun, Liping
AU - Li, Yuyou
AU - Qiu, Chunsheng
AU - Zhu, Yongqiang
PY - 2013/2
Y1 - 2013/2
N2 - Inoculating with activited sludge as the seed material in UASB reactor, the treatment efficiency of municipal landfill leachate (13 years old) was investigated. Keeping the influent COD concentration unchanged as well as a gradual reduction of the HRT, 1~3 mm anaerobic granular sludge can be obtained at volumetric loading rate of 40 g COD/(L·d). The final biogas production was 100 L/d and methane content were between 60%~70%, COD removal efficiency remained at 90%, the MLSS of bottom of the sludge layer was 81 g/L. The best treatment effect was at HRT of 48 h comparing the HRT at 6, 12, 24, 48 and 72 h, COD removal rate reached a maximum of 35%.
AB - Inoculating with activited sludge as the seed material in UASB reactor, the treatment efficiency of municipal landfill leachate (13 years old) was investigated. Keeping the influent COD concentration unchanged as well as a gradual reduction of the HRT, 1~3 mm anaerobic granular sludge can be obtained at volumetric loading rate of 40 g COD/(L·d). The final biogas production was 100 L/d and methane content were between 60%~70%, COD removal efficiency remained at 90%, the MLSS of bottom of the sludge layer was 81 g/L. The best treatment effect was at HRT of 48 h comparing the HRT at 6, 12, 24, 48 and 72 h, COD removal rate reached a maximum of 35%.
KW - HRT
KW - Old landfill leachate
KW - UASB
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M3 - Article
AN - SCOPUS:84894706973
SN - 1673-9108
VL - 7
SP - 483
EP - 488
JO - Chinese Journal of Environmental Engineering
JF - Chinese Journal of Environmental Engineering
IS - 2
ER -