TY - JOUR
T1 - Temporal variation in bacterial and methanogenic communities of three full-scale anaerobic digesters treating swine wastewater
AU - Han, Gyuseong
AU - Shin, Seung Gu
AU - Cho, Kyungjin
AU - Lee, Joonyeob
AU - Kim, Woong
AU - Hwang, Seokhwan
N1 - Publisher Copyright:
© 2018, Springer-Verlag GmbH Germany, part of Springer Nature.
PY - 2019/1/21
Y1 - 2019/1/21
N2 - To investigate the effects of temporal variations of process parameters on microbial community structures in the two types of full-scale anaerobic digester treating swine wastewater, three full-scale anaerobic digesters were monitored. An anaerobic filter (AF)-type digester located in Gong-Ju (GJ) showed the highest COD removal among three digesters and maintained stable efficiency. A digester in Hong-Seong (HS) was of the same type as it GJ and showed improved efficiency over the sampling period. A continuously stirred tank reactor (CSTR)-type digester in Soon-Cheon (SC) showed decreasing efficiency due to a high residual concentration of VFAs and NH 4 + . These process efficiencies were closely correlated to the Simpson indices of the methanogenic communities. Genera Bacillus, Methanosaeta, and Methanospirillum that have filamentous morphology were dominant in both AF-type digesters, but genera Acholeplasma, Methanosarcina, and Methanoculleus that have spherical or coccoid morphology were dominantly abundant in the CSTR-type digester. Correlation between populations suggests a possible syntrophic relationship between genera Desulfobulbus and Methanosaeta in digesters GJ and HS.
AB - To investigate the effects of temporal variations of process parameters on microbial community structures in the two types of full-scale anaerobic digester treating swine wastewater, three full-scale anaerobic digesters were monitored. An anaerobic filter (AF)-type digester located in Gong-Ju (GJ) showed the highest COD removal among three digesters and maintained stable efficiency. A digester in Hong-Seong (HS) was of the same type as it GJ and showed improved efficiency over the sampling period. A continuously stirred tank reactor (CSTR)-type digester in Soon-Cheon (SC) showed decreasing efficiency due to a high residual concentration of VFAs and NH 4 + . These process efficiencies were closely correlated to the Simpson indices of the methanogenic communities. Genera Bacillus, Methanosaeta, and Methanospirillum that have filamentous morphology were dominant in both AF-type digesters, but genera Acholeplasma, Methanosarcina, and Methanoculleus that have spherical or coccoid morphology were dominantly abundant in the CSTR-type digester. Correlation between populations suggests a possible syntrophic relationship between genera Desulfobulbus and Methanosaeta in digesters GJ and HS.
KW - Anaerobic digestion
KW - Digester type
KW - Full-scale, swine wastewater
KW - Microbial community
KW - Multivariate analysis
UR - http://www.scopus.com/inward/record.url?scp=85040335689&partnerID=8YFLogxK
U2 - 10.1007/s11356-017-1103-y
DO - 10.1007/s11356-017-1103-y
M3 - Article
C2 - 29327188
AN - SCOPUS:85040335689
SN - 0944-1344
VL - 26
SP - 1217
EP - 1226
JO - Environmental Science and Pollution Research
JF - Environmental Science and Pollution Research
IS - 2
ER -