Abstract：
:In this study, a novel aerated surface flow constructed wetland (SFCW) using exhaust gas from biological wastewater treatment was investigated. Compared with un-aerated SFCW, the introduction of exhaust gas into SFCW significantly improved NH4+-N, TN and COD removal efficiencies by 68.30 ± 2.06%, 24.92 ± 1.13% and 73.92 ± 2.36%, respectively. The pollutants removal mechanism was related to the microbial abundance and the highest microbial abundance was observed in the SFCW with exhaust gas because of the introduction of exhaust gas from sequencing batch reactor (SBR), and thereby optimizing nitrogen transformation processes. Moreover, SFCW would significantly mitigate the risk of exhaust gas pollution. SFCW removed 20.00 ± 1.23%, 34.78 ± 1.39%, and 59.50 ± 2.33% of H2S, NH3 and N2O in the exhaust gas, respectively. And 31.32 ± 2.23% and 32.02 ± 2.86% of bacterial and fungal aerosols in exhaust gas were also removed through passing SFCW, respectively.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Zhang X,Hu Z,Zhang J,Fan J,Ngo HH,Guo W,Zeng C,Wu Y,Wang Sdoi
10.1016/j.biortech.2017.08.172subject
Has Abstractpub_date
2018-02-01 00:00:00pages
94-101eissn
0960-8524issn
1873-2976pii
S0960-8524(17)31486-4journal_volume
250pub_type
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