TY - JOUR
T1 - Continuous fill intermittent decant type sequencing batch reactor application to upgrade the UASB treated sewage
AU - Khan, Abid Ali
AU - Gaur, Rubia Zahid
AU - Diamantis, Vasileios
AU - Lew, Beni
AU - Mehrotra, Indu
AU - Kazmi, A. A.
PY - 2013/5
Y1 - 2013/5
N2 - The performance of continuous flow intermittent decant type sequencing batch (CFID) reactor treating the effluent of an UASB reactor treating domestic wastewater and operated at 8 h hydraulic retention time (HRT) was investigated. The CFID was operated at three different HRTs (22, 8 and 6 h) and three different dissolved oxygen (DO) patterns (<0.5, 2.5-3.5 and 3.5-4.5 mg/L). The highest effluent quality was observed at the 8 h HRT and 2.5-3.5 mg/L DO concentration. At this operational condition, the average BOD, TSS, ammonia nitrogen and fecal coliform removal efficiencies were 83, 90, 74 and 99 %, respectively. The CFID is a promising post-treatment option for existing UASB systems, with a final effluent quality that comply with receiving water and effluent reuse criteria.
AB - The performance of continuous flow intermittent decant type sequencing batch (CFID) reactor treating the effluent of an UASB reactor treating domestic wastewater and operated at 8 h hydraulic retention time (HRT) was investigated. The CFID was operated at three different HRTs (22, 8 and 6 h) and three different dissolved oxygen (DO) patterns (<0.5, 2.5-3.5 and 3.5-4.5 mg/L). The highest effluent quality was observed at the 8 h HRT and 2.5-3.5 mg/L DO concentration. At this operational condition, the average BOD, TSS, ammonia nitrogen and fecal coliform removal efficiencies were 83, 90, 74 and 99 %, respectively. The CFID is a promising post-treatment option for existing UASB systems, with a final effluent quality that comply with receiving water and effluent reuse criteria.
KW - Ammonia removal
KW - Dissolved oxygen limitation
KW - Hydraulic retention time
KW - Sequencing batch reactor
KW - Upflow anaerobic sludge blanket
UR - https://www.scopus.com/pages/publications/84877927882
U2 - 10.1007/s00449-012-0831-0
DO - 10.1007/s00449-012-0831-0
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C2 - 23117522
AN - SCOPUS:84877927882
SN - 1615-7591
VL - 36
SP - 627
EP - 634
JO - Bioprocess and Biosystems Engineering
JF - Bioprocess and Biosystems Engineering
IS - 5
ER -