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Received: 2005-08-10

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Journal of Zhejiang University SCIENCE B 2006 Vol.7 No.5 P.397~403


Combined treatment of landfill leachate with fecal supernatant in sequencing batch reactor

Author(s):  Zhou Shao-Qi, Zhang Hong-Guo, Shi Yong

Affiliation(s):  School of Environmental Science and Engineering, South China University of Technology, Guangzhou 510641, China

Corresponding email(s):   fesqzhou@scut.edu.cn

Key Words:  Sequencing batch reactor (SBR), Leachate, Fecal supernatant, Simultaneous nitrification, Denitrification

Zhou Shao-Qi, Zhang Hong-Guo, Shi Yong. Combined treatment of landfill leachate with fecal supernatant in sequencing batch reactor[J]. Journal of Zhejiang University Science B, 2006, 7(5): 397~403.

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T1 - Combined treatment of landfill leachate with fecal supernatant in sequencing batch reactor
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A1 - Shi Yong
J0 - Journal of Zhejiang University Science B
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DOI - 10.1631/jzus.2006.B0397

A laboratory-scale sequencing batch reactor (SBR) is used to treat landfill leachate containing high concentration of ammonium nitrogen with municipal fecal supernatant. The SBR system is operated in the following sequential phases: fill period, anoxic period, aeration period, settling period, decant and idle period. The results indicated that the average removal efficiencies of COD, BOD5, TN, NH4+-N were 93.76%, 98.28%, 84.74% and 99.21%, respectively. The average sludge removal loading rates of COD, BOD5, TN and NH4+-N were 0.24 kg/(kg SS∙d), 0.08 kg/(kg SS∙d), 0.04 kg/(kg SS∙d) and 0.036 kg/(kg SS∙d), respectively. Highly effective simultaneous nitrification and denitrification was achieved in the SBR system. The ratio of nitrification and denitrification was 99% and 84%, respectively. There was partial NO2 denitrification in the system.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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