Author:

Keywords:

activated sludge, biological waste water treatment, filamentous bulking, image analysis, Science & Technology, Life Sciences & Biomedicine, Biotechnology & Applied Microbiology, 06 Biological Sciences, 09 Engineering, 10 Technology, Biotechnology, 31 Biological sciences, 40 Engineering

Abstract:

A fully automatic image analysis method for recognizing flocs and filaments in an activated sludge sample was developed. Five simple shape descriptors, namely the aspect ratio, the roundness, the form factor, the fractal dimension and the reduced radius of gyration, were assessed on their capability to identify flocs and filaments in a binary image.