Impact of UASB start-up and different HRT on treatment effect of old landfill leachate

Zixu Liu; Liping Sun; Gyokuyu Ri; Chunsheng Qiu; Yongqiang Zhu

Impact of UASB start-up and different HRT on treatment effect of old landfill leachate

Zixu Liu, Liping Sun, Gyokuyu Ri, Chunsheng Qiu, Yongqiang Zhu

ENG - Civil and Environmental Engineering

Research output: Contribution to journal › Article

2 Citations (Scopus)

Abstract

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%.

Original language	English
Pages (from-to)	483-488
Number of pages	6
Journal	Chinese Journal of Environmental Engineering
Volume	7
Issue number	2
Publication status	Published - 2013 Feb 1

Keywords

HRT
Old landfill leachate
UASB

ASJC Scopus subject areas

Environmental Engineering
Environmental Chemistry
Water Science and Technology
Waste Management and Disposal
Pollution

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title = "Impact of UASB start-up and different HRT on treatment effect of old landfill leachate",

abstract = "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%.",

keywords = "HRT, Old landfill leachate, UASB",

author = "Zixu Liu and Liping Sun and Gyokuyu Ri and Chunsheng Qiu and Yongqiang Zhu",

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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 - Ri, Gyokuyu

AU - Qiu, Chunsheng

AU - Zhu, Yongqiang

PY - 2013/2/1

Y1 - 2013/2/1

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%.

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KW - Old landfill leachate

KW - UASB

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