Abstract：
:To improve the efficiency of wastewater treatment and characterize the microorganism communities, microorganisms were cultured and concentrated in hybrid bioreactors at a low temperature (~4 °C, low-temperature hybrid bioreactor, LTHB) and room temperature (~25 °C, room-temperature hybrid bioreactor, RTHB). The performance of the LTHB and RTHB in terms of COD removal efficiency, dehydrogenase activity and functional diversity of microbial communities were evaluated. The results show COD removal efficiency increased gradually over time from 39.76% to 66.27% for LTHB and fluctuated between 81.85% and 94.78% for RTHB. The dehydrogenase activity and microbial activity in LTHB was higher than those in RTHB, implying that microorganisms cultured at low temperature had higher activities and adaptabilities than those cultured at room temperature. This study suggests that hybrid bioreactors can treat wastewater at both low and room temperatures and provides valuable insight into the adaptation processes of the microorganisms during temperature changes.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Li T,Bo L,Yang F,Zhang S,Wu Y,Yang Ldoi
10.1016/j.biortech.2011.12.141subject
Has Abstractpub_date
2012-03-01 00:00:00pages
28-34eissn
0960-8524issn
1873-2976pii
S0960-8524(11)01937-7journal_volume
108pub_type
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