TY - JOUR
T1 - Assimilation of 17α-ethinylestradiol by sludge and its stress on microbial communities under aerobic and anaerobic conditions
AU - Wang, Ling Yun
AU - Tam, Nora F.Y.
AU - Zhang, Xi Hui
N1 - Funding Information:
The work was jointly funded by projects of JST (Japan Science and Technology Corporation)-NSFC (National Natural Science Foundation of China) (20721140019) and of NSFC (U0773002), and a grant from the Areas of Excellence (AoE) established under the UGC of HKSAR (Project No. AoE/P-04/2004).
PY - 2011/2
Y1 - 2011/2
N2 - The efficiency of 2 common types sludge, activated sludge and digesting sludge, to biodegrade ethinylestradiol (EE2) under aerobic and anaerobic conditions, and the impacts of EE2 on microbial community structure were investigated. The results showed that 75%-88% EE2 were removed under aerobic conditions and the values were 75%-84% under anaerobic conditions. The diversity of microbial species in the tested sludge decreased when exposed to EE2 and the shift of microbial community structures was dependent on both sludge types and process conditions. Predominant bacteria were identified as Proteobacteria class which was considered to have EE2 degradation capacities. Twelve strains were found, 8 of them belonged to the Class of γ-proteobacterium, 1 of β-proteobacterium, 1 of Actinobacterium, and 2 of unclassified strains.
AB - The efficiency of 2 common types sludge, activated sludge and digesting sludge, to biodegrade ethinylestradiol (EE2) under aerobic and anaerobic conditions, and the impacts of EE2 on microbial community structure were investigated. The results showed that 75%-88% EE2 were removed under aerobic conditions and the values were 75%-84% under anaerobic conditions. The diversity of microbial species in the tested sludge decreased when exposed to EE2 and the shift of microbial community structures was dependent on both sludge types and process conditions. Predominant bacteria were identified as Proteobacteria class which was considered to have EE2 degradation capacities. Twelve strains were found, 8 of them belonged to the Class of γ-proteobacterium, 1 of β-proteobacterium, 1 of Actinobacterium, and 2 of unclassified strains.
KW - Ethinylestradiol
KW - activated sludge
KW - digesting sludge
KW - microbial community
UR - http://www.scopus.com/inward/record.url?scp=79551586010&partnerID=8YFLogxK
U2 - 10.1080/10934529.2011.535411
DO - 10.1080/10934529.2011.535411
M3 - Article
C2 - 21279894
AN - SCOPUS:79551586010
SN - 1093-4529
VL - 46
SP - 242
EP - 247
JO - Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering
JF - Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering
IS - 3
ER -