Cultivation of Aerobic Granular Sludge under Selective Pressure in a Sequencing Batch Reactor

Abstract:

Article Preview

Aerobic granules were cultivated in the sequencing batch reactor at 15-25°C, pH 7.0 ± 0.1. Settling time decreased from 5 minutes to 1 minute gradually. As increasing the chemical oxygen demand (COD) and NH3-N in influent, COD removal efficiency and mixed liquid suspended solids of the reactor increased. Sludge volume index decreased continuously for a few days and then stabilized at 22 ml g-1. Selective pressure induced by settling velocity was proved to play a crucial role in activated sludge granulation. Based on the continuously measured data, the granulation process was divided into three phases, granules namely initiating, developing and maturating.

Info:

Periodical:

Advanced Materials Research (Volumes 255-260)

Edited by:

Jingying Zhao

Pages:

3037-3041

DOI:

10.4028/www.scientific.net/AMR.255-260.3037

Citation:

K. Z. Su et al., "Cultivation of Aerobic Granular Sludge under Selective Pressure in a Sequencing Batch Reactor", Advanced Materials Research, Vols. 255-260, pp. 3037-3041, 2011

Online since:

May 2011

Export:

Price:

$35.00

In order to see related information, you need to Login.

In order to see related information, you need to Login.