DOI: 10.1016/j.watres.2018.08.058
Scopus记录号: 2-s2.0-85053042208
论文题名: A novel AAO-SBSPR process based on phosphorus mass balance for nutrient removal and phosphorus recovery from municipal wastewater
作者: Zhu Z. ; Chen W. ; Tao T. ; Li Y.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 144 起始页码: 763
结束页码: 773
语种: 英语
英文关键词: AAO-SBSPR process
; Nutrient removal
; Operational strategy
; P mass balance
; Phosphorus recovery
; Sludge retention time
Scopus关键词: Bacteria
; Efficiency
; Nitrification
; Nitrogen removal
; Nutrients
; Recovery
; Mass balance
; Nutrient removal
; Operational strategies
; Phosphorus recovery
; Sludge retention time
; Activated sludge process
; activated sludge
; bacterium
; bioreactor
; chemical mass balance
; efficiency measurement
; municipal solid waste
; phosphorus
; pollutant removal
; recovery
; relative abundance
; wastewater treatment
英文摘要: A novel AAO-SBSPR (Anaerobic-Anoxic-Oxic/Sequencing Batch Sidestream Phosphorus Recovery) process was developed for phosphorus (P) recovery and nutrient removal from municipal wastewater. Meanwhile, an operational strategy based on the P mass balance for the process was proposed, where P recovery rate was coupled with sludge retention time (SRT) so as to reduce the impact of P recovery on P content in activated sludge and maintain a stable operation of the process. The results show that the proposed operational strategy is helpful for the stable operation of the AAO-SBSPR process and up to 65% of the influent P was recovered with the phosphate removal efficiency of 99.1%. Both P recovery and extended SRT had limited influence on the P release and uptake rates of polyphosphate accumulating organisms (PAOs). The results of high-throughput sequencing analysis indicated that the relative abundance of Accumulibacter increased while SRT was extended under high P recovery rate. Moreover, significant promotion of simultaneous nitrogen removal and P uptake was observed, where the ratio of anoxic P uptake to the total P uptake of the whole process increased from 41.7% in the AAO process to 77.5% in the AAO-SBSPR process, combined with the increase of total nitrogen (TN) removal efficiency from 71.9% to 80.4%. The P recovery process is also beneficial for the reduction of sludge production and nitrification process as SRT was extended for high P recovery rate. Overall, the AAO-SBSPR process together with the operational strategy proposed in this study provides a promising and practical alternative for P recovery from municipal wastewater. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112502
Appears in Collections: 气候减缓与适应
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作者单位: State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, China
Recommended Citation:
Zhu Z.,Chen W.,Tao T.,et al. A novel AAO-SBSPR process based on phosphorus mass balance for nutrient removal and phosphorus recovery from municipal wastewater[J]. Water Research,2018-01-01,144