Methanogenic community structure in simultaneous methanogenesis and denitrification granular sludge

2018, Volume 12, Issue 4

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Frontiers of Environmental Science & Engineering >> 2018, Volume 12, Issue 4 doi: 10.1007/s11783-018-1067-2

Methanogenic community structure in simultaneous methanogenesis and denitrification granular sludge

¹. College of Water Science, Beijing Normal University, Beijing 100875, China
². School of Environment, Tsinghua University, Beijing 100084, China
³. Environmental Engineering Department, North China Institute of Science and Technology, Beijing 101601, China

Available online: 2018-08-03

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Abstract

• UASB with SMD granules was operated with high removal efficiency of COD and NO₃^--N.

• Methanosaetaceae was absolute predominant methanogen in SMD granules.

• The methanogen quantity and activity decreased as C/N decreased from 20:1 to 5:1.

• Bacterial community succession happened with C/N decreasing.

Keywords

Simultaneous methanogenesis and denitrification (SMD) ; Methanogens ; Community structure ; Diversity index ; Granular sludge

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