Journal
ANALYTICA CHIMICA ACTA
Volume 544, Issue 1-2, Pages 246-253Publisher
ELSEVIER
DOI: 10.1016/j.aca.2004.12.061
Keywords
environmental sciences; activated sludge; image analysis; PLS; environmetrics
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The biomass present in a wastewater treatment plant was surveyed and their morphological properties related with operating parameters such as the total suspended solids (TSS) and sludge volume index (SVI). For that purpose image analysis was used to provide the morphological data subsequently treated by partial least squares regression (PLS) multivariable statistical technique. The results denoted the existence of a severe bulking problem of non-zoogleal nature and the PLS analysis revealed a strong relationship between the TSS and the total aggregates area as well as a close correlation between the filamentous bacteria per suspended solids ratio and the SVI. (c) 2004 Elsevier B.V. All rights reserved.
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