The Characteristics of the Aerobic Granular Sludge on Nitrogen and Phosphorus Removal Simultaneously

Jin Sheng Liu; Yong Jiong Ni; Gen Yuan Jia; Jun Li

doi:10.4028/www.scientific.net/AMR.446-449.2840

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 446-449The Characteristics of the Aerobic Granular Sludge...

The Characteristics of the Aerobic Granular Sludge on Nitrogen and Phosphorus Removal Simultaneously

Abstract:

By using the conventional activated sludge as seed sludge in SBR to cultivate the aerobic granular sludge system, the mechanism of nitrogen and phosphorus removal was explored. The results showed that the aerobic granular sludge system consisted of the heavy aerobic granular sludge and the light flocculent activated sludge was formed in the reactor after 15 days. The SVI of the aerobic granular sludge system was about 50ml/g～60ml/g, the MLSS was about 3000mg/L～4000mg/L steadily, and the weight ratio of granules in the total sludge was about 70%.The removal rates of NH4+-N, TN, and PO43-P in the anaerobic-aerobic operation mode were 80%～97%, 80%～97% and 70%～85%, respectively. It indicated that granules and flocs were beneficial nitrogen and phosphorus removal, respectively.

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Periodical:

Advanced Materials Research (Volumes 446-449)

Pages:

2840-2843

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.446-449.2840

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Online since:

January 2012

Authors:

Jin Sheng Liu, Yong Jiong Ni, Gen Yuan Jia, Jun Li

Keywords:

Aerobic Granular Sludge, Flocculent Activated Sludge, Nitrogen, Phosphorus., Sequencing Batch Reactor (SBR)

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