title: A novel process combining simultaneous partial nitrification, anammox and denitrification (SNAD) with denitrifying phosphorus removal (DPR) to treat sewage.
abstract: In this study, a novel process combined simultaneous partial nitrification, anammox and denitrification (SNAD) with denitrifying phosphorus removal (DPR) was proposed for advanced nitrogen removal. Firstly simulating sewage was introduced to a sequencing batch reactor (SBR) for organic matter removal and anaerobic phosphorus release (stage 1). Then effluent of stage 1 with low COD was discharged to a sequencing biofilm batch reactor (SBBR) for partial nitrification, anammox and partial denitrification (stage 2). The nitrate produced in SBBR was fed into SBR again, in which the nitrate was removed by DPR process (stage 3). The performance of the SNAD-DPR process was investigated. And effects of carbon source addition during start-up period on microbial community were discussed based on 16S rRNA amplicon pyrosequencing.
authors.affiliation: Faculty of Urban Construction and Environmental Engineering, Chongqing University, Chongqing 400045, PR China.
authors.forename: Xin
authors.initials: X
authors.lastname: Wen
authors.affiliation: Faculty of Urban Construction and Environmental Engineering, Chongqing University, Chongqing 400045, PR China; Key Laboratory of the Three Gorges Reservoir's Eco-Environments, Ministry of Education, Chongqing University, Chongqing 400045, PR China.
authors.forename: Jian
authors.initials: J
authors.lastname: Zhou
authors.affiliation: Faculty of Urban Construction and Environmental Engineering, Chongqing University, Chongqing 400045, PR China.
authors.forename: Yancheng
authors.initials: Y
authors.lastname: Li
authors.affiliation: Faculty of Urban Construction and Environmental Engineering, Chongqing University, Chongqing 400045, PR China; Key Laboratory of the Three Gorges Reservoir's Eco-Environments, Ministry of Education, Chongqing University, Chongqing 400045, PR China.
authors.forename: Xiaoxia
authors.initials: X
authors.lastname: Qing
authors.affiliation: Faculty of Urban Construction and Environmental Engineering, Chongqing University, Chongqing 400045, PR China; Key Laboratory of the Three Gorges Reservoir's Eco-Environments, Ministry of Education, Chongqing University, Chongqing 400045, PR China. Electronic address: cquqianghe@163.com.
authors.forename: Qiang
authors.initials: Q
authors.lastname: He
mesh_terms: D000641:Ammonia / Q000378:metabolism*; D000693:Anaerobiosis; D001419:Bacteria / Q000378:metabolism; D001673:Biodegradation, Environmental; D044822:Biodiversity; D057919:Biological Oxygen Demand Analysis; D019149:Bioreactors / Q000382:microbiology; D058440:Denitrification; D052918:Environmental Restoration and Remediation / Q000379:methods*; D058465:Nitrification; D009584:Nitrogen / Q000302:isolation & purification; D010084:Oxidation-Reduction; D010758:Phosphorus / Q000302:isolation & purification*; D025341:Principal Component Analysis; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D017423:Sequence Analysis, RNA; D012722:Sewage / Q000382:microbiology*
chemical_list: D012336:RNA, Ribosomal, 16S; D012722:Sewage; D010758:Phosphorus; D000641:Ammonia; D009584:Nitrogen
keywords: Anammox; Denitrifying phosphorus removal; Microbial community; SNAD; Sewage