Study of filamentous bacteria by image analysis and relation with settleability

• Published in: Water Science & Technology Vol. 46; no. 1-2; pp. 363 - 369
• Main Authors: da Motta, M, Pons, M N, Roche, N
• Format: Journal Article Conference Proceeding
• Language: English
• Published: England IWA Publishing 01.01.2002
• Subjects: Activated Sludge; Bacteria; Biomass; Bioreactors; Chemical and Process Engineering; Correlation analysis; Engineering Sciences; Flocculation; Image analysis; Image detection; Inoculation; Particle Size; Settling velocity; Sewage - microbiology; Sludge; Sludge settling; Sludge volume index; Temperature; Wastewater treatment; Wastewater treatment plants; Water Movements
• ISBN: 1843394219; 9781843394211
• ISSN: 0273-1223; 1996-9732
• DOI: 10.2166/wst.2002.0503

An automated procedure for the characterisation by image analysis of the morphology of activated sludge has been used to monitor the biomass in a pilot wastewater treatment plant during two runs inoculated with a different sludge and operated at two different temperatures. The bulking events were easily detected by image analysis. Correlations were found between settleability properties (Sludge Volume Index and settling velocity) and the morphological parameters (filament total length, filament number and floc size).