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Cultivation in SBR System and Screening of Simultaneous Nitrogen and Phosphorus Removal Strain with Identification

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Abstract:

The successful cultivation of aerobic granular sludge used for simultaneous nitrogen and phosphorus removal in sequencing batch reactor (SBR) was performed using a synthetic domestic wastewater and conventional flocculent activated sludge as seeding sludge. The removal efficiency of sludge for chemical oxygen demand (COD),ammonia nitrogen and phosphate was 92.4%,88.1% and 95.9%, respectively. After screening, a strain was obtained with high efficient in nitrogen and phosphorus removal. By analyzing, the strain was identified as Raoultella ornithinolytica. After strain accumulation, the strain cultured at 30°C for 24h. The ammonia nitrogen and phosphate removal efficiency were 78.3% and 92%, respectively.

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Periodical:

Advanced Materials Research (Volumes 518-523)

Pages:

5347-5350

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.518-523.5347

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Online since:

May 2012

Authors:

Jia Xie, Xiao Xiang Zhao, Xin Shan Song, Jun Hu Wei

Keywords:

Screening, Sequencing Batch Reactor (SBR), Simultaneous Nitrogen and Phosphorus Removal

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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