Biological Phosphorus Removal with Granular Sludge in SBR

Author

Liu, Xiaoying ; Guo, Chao ; Peng, Dangcong

Author_Institution

Sch. of Civil Eng. & Archit., Wuhan Univ. of Technol., Wuhan, China

fYear

2009

fDate

11-13 June 2009

Firstpage

1

Lastpage

4

Abstract

The formation and performance of granular sludge seeded with flocculating sludge was studied in a 4L sequencing batch reactor (SBR) treating a synthetic wastewater with sodium acetate as carbon source. By gradually reducing the settle time from 30 to 10 min, granule sludge was formed on day 20. The granules had a specific gravity of 1.0439, diameters of 0.5-2 mm, and sludge volume index (SVI) of less than 50 mL/g. Phosphorus removal granular sludge had good phosphorus removal characteristics. The efficiency of phosphorus removal was over 90%. The max. specific phosphorus release rate (SRPR) and the max. specific phosphorus uptake rate (SUPR) was 62.65 mg/(gVSSldrh) and 51.76 mg/(gVSSldrh), respectively. And the sludge phosphorus content (TP/SS) was 6.5%.

Keywords

environmental degradation; flocculation; phosphorus; sludge treatment; wastewater treatment; biological phosphorus removal; flocculating sludge; granular sludge; sequencing batch reactor; sludge volume index; sodium acetate; specific gravity; synthetic wastewater; Biomass; Effluents; Gravity; Inductors; Microorganisms; Organisms; Scanning electron microscopy; Sludge treatment; Solids; Wastewater treatment;

fLanguage

English

Publisher

ieee

Conference_Titel

Bioinformatics and Biomedical Engineering , 2009. ICBBE 2009. 3rd International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-2901-1

Electronic_ISBN

978-1-4244-2902-8

Type

conf

DOI

10.1109/ICBBE.2009.5162451

Filename

5162451