The study of protozoa population in wastewater treatment plants by image analysis
AUTOR(ES)
Motta, M.da, Pons, M.N., Vivier, H., Amaral, A.L., Ferreira, E.C., Roche, N., Mota, M.
FONTE
Brazilian Journal of Chemical Engineering
DATA DE PUBLICAÇÃO
2001-03
RESUMO
Protozoa are important microorganisms for the ecosystem balance in wastewater treatment plants. A procedure for their semi-automated identification and counting based on image analysis is proposed. The main difficulty is segmentation of the protozoa as most of them are in contact with the sludge. The protozoa are characterized by the size of their silhouette (area and length) and three shape factors (elongation, circularity and eccentricity). They are identified after projecting the resulting 5D space into a 3D space of principal components. The rate of automated identification is actually higher than 50% for some of the species commonly found in activated sludge.
Documentos Relacionados
- Giardia Cysts in Wastewater Treatment Plants in Italy
- Relationship between bacterial counts and endotoxin concentrations in the air of wastewater treatment plants.
- Enteroviruses in sludge: multiyear experience with four wastewater treatment plants.
- Degradation of Estrogens by Rhodococcus zopfii and Rhodococcus equi Isolates from Activated Sludge in Wastewater Treatment Plants
- Sustainability assessment of sludge and biogas management in wastewater treatment plants using the LCA technique