TY - JOUR
T1 - Biological treatment of refractory pollutants in industrial wastewaters under aerobic or anaerobic condition
T2 - Batch tests and associated microbial community analysis
AU - Yang, Lei
AU - Xu, Xijun
AU - Wang, Hui
AU - Yan, Jin
AU - Zhou, Xu
AU - Ren, Nanqi
AU - Lee, Duu-Jong
AU - Chen, Chuan
PY - 2022/2
Y1 - 2022/2
N2 - In this study, aerobic or anaerobic biological treatment of streams collected from different units of industrial wastewater treatment plant (WWTP) was studied in a series of batch tests. Under aerobic condition, the removal efficiencies of COD, NH4+-N and TP were 57.7%, 83.8% and 100% for influent of WWTP (IN), 64.4%, 61.3% and 100% for effluent of secondary sedimentation tank (EN-SST), and 2.3%, 64.3% and 10.6% for effluent of advanced oxidation tank (EN-AOT). Meanwhile, the removal efficiencies of COD, NH4+-N, TOC were above 30% under anaerobic conditions. The GC–MS analysis showed a presence of 59 kinds of chemicals in IN, 28 in EN-SST, and 8 in EN-AOT. The main organic compounds were long-chain alkanes and derivatives. After aerobic/anaerobic biological treatment, the abundance of Proteobacteria, Bacteroidota, Nitrospirota was 40.4–56.1% (IN), 5.3–17.5% (EN-SST), and 4.6–13.4% (EN-AOT), respectively. This work contributed to deeply understanding the biotransformation mechanisms of refractory pollutants in industrial wastewaters.
AB - In this study, aerobic or anaerobic biological treatment of streams collected from different units of industrial wastewater treatment plant (WWTP) was studied in a series of batch tests. Under aerobic condition, the removal efficiencies of COD, NH4+-N and TP were 57.7%, 83.8% and 100% for influent of WWTP (IN), 64.4%, 61.3% and 100% for effluent of secondary sedimentation tank (EN-SST), and 2.3%, 64.3% and 10.6% for effluent of advanced oxidation tank (EN-AOT). Meanwhile, the removal efficiencies of COD, NH4+-N, TOC were above 30% under anaerobic conditions. The GC–MS analysis showed a presence of 59 kinds of chemicals in IN, 28 in EN-SST, and 8 in EN-AOT. The main organic compounds were long-chain alkanes and derivatives. After aerobic/anaerobic biological treatment, the abundance of Proteobacteria, Bacteroidota, Nitrospirota was 40.4–56.1% (IN), 5.3–17.5% (EN-SST), and 4.6–13.4% (EN-AOT), respectively. This work contributed to deeply understanding the biotransformation mechanisms of refractory pollutants in industrial wastewaters.
KW - Activated sludge
KW - Industrial wastewater
KW - Microbial community
KW - Refractory pollutants
UR - http://www.scopus.com/inward/record.url?scp=85122409574&partnerID=8YFLogxK
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85122409574&origin=recordpage
U2 - 10.1016/j.biteb.2021.100927
DO - 10.1016/j.biteb.2021.100927
M3 - RGC 21 - Publication in refereed journal
SN - 2589-014X
VL - 17
JO - Bioresource Technology Reports
JF - Bioresource Technology Reports
M1 - 100927
ER -
