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Comparison of A(2)O and SBR processes for the advanced biological wastewater treatment
Guo Lei; Lu Qihong; Xie Wenbiao; Shim Hojae
2011-07
Source PublicationRESEARCH JOURNAL OF CHEMISTRY AND ENVIRONMENT
ISSN0972-0626
Volume15Issue:2Pages:629-632
Abstract

Bench-scale anaerobic/anoxic/oxic (A(2)O) and sequencing batch reactor (SBR) processes were operated for the simultaneous organics and nutrient removal from synthetic wastewater. The effect of operating parameter, namely hydraulic retention time (HRT) was investigated at first. The optimized cycle time for SBR was as short as 6 hours, corresponding to 13.8 hours HRT, while the optimum total HRT for A(2)O process was also 13.8 hours. The A(2)O process possessed a relatively higher treatment capacity when the two reactors were with the same working volume. Under optimized HRT, the removal efficiencies for chemical oxygen demand (COD) and NH3-N were above 92 and 98% respectively for both processes. But effluent concentrations of nitrite and nitrate in A(2)O reactor were relatively higher than that in SBR reactor Phosphorus release and uptake in A(2)O reactor was negatively affected due to disrupt of anaerobic condition in the first tank. As a result, significant amounts of total nitrogen (TN, 93%) and total phosphorus (TP, 85%) were removed from synthetic wastewater in the SBR process, while slightly lower removal efficiencies of nitrogen and phosphorus were obtained in the A(2)O process.

KeywordSequencing Batch Reactor Biological Nutrient Removal Anaerobic /anoxic /oxic (a(2)o) Reactor
Indexed BySCI
Language英语
WOS Research AreaChemistry ; Environmental Sciences & Ecology
WOS SubjectChemistry, Multidisciplinary ; Environmental Sciences
WOS IDWOS:000294373200115
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Cited Times [WOS]:2   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionFaculty of Science and Technology
DEPARTMENT OF CIVIL AND ENVIRONMENTAL ENGINEERING
Corresponding AuthorShim Hojae
AffiliationUniv Macau, Fac Sci & Technol, Dept Civil & Environm Engn, Macao, Peoples R China
First Author AffilicationUniversity of Macau
Corresponding Author AffilicationUniversity of Macau
Recommended Citation
GB/T 7714
Guo Lei,Lu Qihong,Xie Wenbiao,et al. Comparison of A(2)O and SBR processes for the advanced biological wastewater treatment[J]. RESEARCH JOURNAL OF CHEMISTRY AND ENVIRONMENT,2011,15(2):629-632.
APA Guo Lei,Lu Qihong,Xie Wenbiao,&Shim Hojae.(2011).Comparison of A(2)O and SBR processes for the advanced biological wastewater treatment.RESEARCH JOURNAL OF CHEMISTRY AND ENVIRONMENT,15(2),629-632.
MLA Guo Lei,et al."Comparison of A(2)O and SBR processes for the advanced biological wastewater treatment".RESEARCH JOURNAL OF CHEMISTRY AND ENVIRONMENT 15.2(2011):629-632.
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