Title :
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
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;
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
DOI :
10.1109/ICBBE.2009.5162451
